From 83d5f3246fc05a629278240c09688fd9960b97db Mon Sep 17 00:00:00 2001 From: Jonathan Cameron Date: Wed, 11 Dec 2013 18:45:00 +0000 Subject: [PATCH 01/55] staging:iio:ad799x fix incorrect endianness specification for buffer elements Due to use of the IIO_ST macro, the endianness element of scan_type was not being set. The result is that it will default to the cpu endianness whereas this driver will fill the buffer with big endian data. Thus for little endian machines, userspace will miss interpret the data. Signed-off-by: Jonathan Cameron Acked-by: Lars-Peter Clausen --- drivers/staging/iio/adc/ad799x_core.c | 8 +++++++- 1 file changed, 7 insertions(+), 1 deletion(-) diff --git a/drivers/staging/iio/adc/ad799x_core.c b/drivers/staging/iio/adc/ad799x_core.c index 9428be82b655..bad4c8a9d1e9 100644 --- a/drivers/staging/iio/adc/ad799x_core.c +++ b/drivers/staging/iio/adc/ad799x_core.c @@ -409,7 +409,13 @@ static const struct iio_event_spec ad799x_events[] = { .info_mask_separate = BIT(IIO_CHAN_INFO_RAW), \ .info_mask_shared_by_type = BIT(IIO_CHAN_INFO_SCALE), \ .scan_index = (_index), \ - .scan_type = IIO_ST('u', _realbits, 16, 12 - (_realbits)), \ + .scan_type = { \ + .sign = 'u', \ + .realbits = (_realbits), \ + .storagebits = 16, \ + .shift = 12 - (_realbits), \ + .endianness = IIO_BE, \ + }, \ .event_spec = _ev_spec, \ .num_event_specs = _num_ev_spec, \ } From e9ed104de68c345c9a827225e93c74c6894613a9 Mon Sep 17 00:00:00 2001 From: Julia Lawall Date: Wed, 1 Jan 2014 13:07:00 +0000 Subject: [PATCH 02/55] staging:iio:impedance:ad5933: correct error check iio_kfifo_allocate returns NULL in case of error. The semantic match that finds this problem is as follows: (http://coccinelle.lip6.fr/) // @@ expression *x; identifier f; statement S1,S2; @@ *x = f(...); if (x) { <+... when != if (...) S1 else S2 -ENOMEM ...+> } // Signed-off-by: Julia Lawall Signed-off-by: Jonathan Cameron cc: stable@vger.kernel.org --- drivers/staging/iio/impedance-analyzer/ad5933.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/staging/iio/impedance-analyzer/ad5933.c b/drivers/staging/iio/impedance-analyzer/ad5933.c index 0a4298b744e6..2b96665da8a2 100644 --- a/drivers/staging/iio/impedance-analyzer/ad5933.c +++ b/drivers/staging/iio/impedance-analyzer/ad5933.c @@ -629,7 +629,7 @@ static int ad5933_register_ring_funcs_and_init(struct iio_dev *indio_dev) struct iio_buffer *buffer; buffer = iio_kfifo_allocate(indio_dev); - if (buffer) + if (!buffer) return -ENOMEM; iio_device_attach_buffer(indio_dev, buffer); From 66c65d90db1004356281db6ead988e2e38ba9e37 Mon Sep 17 00:00:00 2001 From: Craig Markwardt <> Date: Wed, 1 Jan 2014 15:38:52 +0000 Subject: [PATCH 03/55] iio: Fix a buffer overflow in iio_utils.h example code This was originally reported by Craig Markwardt on Zubair Lutfullah's blog and Zubair forwarded it to linux-iio@vger.kernel.org. No email address known. The code first counted the number of enabled channels, then created an array to hold information about them. The code that filled this array then stored whether a given element was enabled inside the array. Curriously this element was never used. Craig's patch added a local temporary variable to avoid the buffer overrun. Jonathan then removed the original enabled element of the structure as it was not needed at all. Signed-off-by: Zubair Lutfullah Signed-off-by: Jonathan Cameron --- drivers/staging/iio/Documentation/iio_utils.h | 6 +++--- 1 file changed, 3 insertions(+), 3 deletions(-) diff --git a/drivers/staging/iio/Documentation/iio_utils.h b/drivers/staging/iio/Documentation/iio_utils.h index 35154d60faf6..c9fedb79e3a2 100644 --- a/drivers/staging/iio/Documentation/iio_utils.h +++ b/drivers/staging/iio/Documentation/iio_utils.h @@ -77,7 +77,6 @@ struct iio_channel_info { uint64_t mask; unsigned be; unsigned is_signed; - unsigned enabled; unsigned location; }; @@ -335,6 +334,7 @@ inline int build_channel_array(const char *device_dir, while (ent = readdir(dp), ent != NULL) { if (strcmp(ent->d_name + strlen(ent->d_name) - strlen("_en"), "_en") == 0) { + int current_enabled = 0; current = &(*ci_array)[count++]; ret = asprintf(&filename, "%s/%s", scan_el_dir, ent->d_name); @@ -350,10 +350,10 @@ inline int build_channel_array(const char *device_dir, ret = -errno; goto error_cleanup_array; } - fscanf(sysfsfp, "%u", ¤t->enabled); + fscanf(sysfsfp, "%u", ¤t_enabled); fclose(sysfsfp); - if (!current->enabled) { + if (!current_enabled) { free(filename); count--; continue; From 38408d056188be29a6c4e17f3703c796551bb330 Mon Sep 17 00:00:00 2001 From: Hartmut Knaack Date: Wed, 1 Jan 2014 23:04:00 +0000 Subject: [PATCH 04/55] staging:iio:ad799x fix error_free_irq which was freeing an irq that may not have been requested Only free an IRQ in error_free_irq, if it has been requested previously. Signed-off-by: Hartmut Knaack Acked-by: Lars-Peter Clausen Signed-off-by: Jonathan Cameron Cc: stable@vger.kernel.org --- drivers/staging/iio/adc/ad799x_core.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) diff --git a/drivers/staging/iio/adc/ad799x_core.c b/drivers/staging/iio/adc/ad799x_core.c index bad4c8a9d1e9..c1b601acfd90 100644 --- a/drivers/staging/iio/adc/ad799x_core.c +++ b/drivers/staging/iio/adc/ad799x_core.c @@ -594,7 +594,8 @@ static int ad799x_probe(struct i2c_client *client, return 0; error_free_irq: - free_irq(client->irq, indio_dev); + if (client->irq > 0) + free_irq(client->irq, indio_dev); error_cleanup_ring: ad799x_ring_cleanup(indio_dev); error_disable_reg: From 3b5c1635d12a670a0fea5542ada5bceb6536ae85 Mon Sep 17 00:00:00 2001 From: Ivaylo Dimitrov Date: Mon, 13 Jan 2014 17:24:00 +0000 Subject: [PATCH 05/55] iio: tsl2563: Use the correct channel2 member Use the correct channel2 member instead of channel when dealing with sysfs reads/writes Signed-off-by: Ivaylo Dimitrov Acked-by: Peter Meerwald Signed-off-by: Jonathan Cameron --- drivers/iio/light/tsl2563.c | 16 ++++++++++------ 1 file changed, 10 insertions(+), 6 deletions(-) diff --git a/drivers/iio/light/tsl2563.c b/drivers/iio/light/tsl2563.c index 5e5d9dea22c5..2be6df3a1350 100644 --- a/drivers/iio/light/tsl2563.c +++ b/drivers/iio/light/tsl2563.c @@ -460,10 +460,14 @@ static int tsl2563_write_raw(struct iio_dev *indio_dev, { struct tsl2563_chip *chip = iio_priv(indio_dev); - if (chan->channel == IIO_MOD_LIGHT_BOTH) + if (mask != IIO_CHAN_INFO_CALIBSCALE) + return -EINVAL; + if (chan->channel2 == IIO_MOD_LIGHT_BOTH) chip->calib0 = calib_from_sysfs(val); - else + else if (chan->channel2 == IIO_MOD_LIGHT_IR) chip->calib1 = calib_from_sysfs(val); + else + return -EINVAL; return 0; } @@ -472,14 +476,14 @@ static int tsl2563_read_raw(struct iio_dev *indio_dev, struct iio_chan_spec const *chan, int *val, int *val2, - long m) + long mask) { int ret = -EINVAL; u32 calib0, calib1; struct tsl2563_chip *chip = iio_priv(indio_dev); mutex_lock(&chip->lock); - switch (m) { + switch (mask) { case IIO_CHAN_INFO_RAW: case IIO_CHAN_INFO_PROCESSED: switch (chan->type) { @@ -498,7 +502,7 @@ static int tsl2563_read_raw(struct iio_dev *indio_dev, ret = tsl2563_get_adc(chip); if (ret) goto error_ret; - if (chan->channel == 0) + if (chan->channel2 == IIO_MOD_LIGHT_BOTH) *val = chip->data0; else *val = chip->data1; @@ -510,7 +514,7 @@ static int tsl2563_read_raw(struct iio_dev *indio_dev, break; case IIO_CHAN_INFO_CALIBSCALE: - if (chan->channel == 0) + if (chan->channel2 == IIO_MOD_LIGHT_BOTH) *val = calib_to_sysfs(chip->calib0); else *val = calib_to_sysfs(chip->calib1); From 1c51eb0bcf3489f72e1923241db7b6993442b13f Mon Sep 17 00:00:00 2001 From: Richard Weinberger Date: Tue, 14 Jan 2014 15:45:00 +0000 Subject: [PATCH 06/55] staging:iio:spear_adc: Add dependency on HAS_IOMEM MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit On archs like S390 or um this driver cannot build nor work. Make it depend on HAS_IOMEM to bypass build failures. drivers/staging/iio/adc/spear_adc.c: In function ‘spear_adc_probe’: drivers/staging/iio/adc/spear_adc.c:393:2: error: implicit declaration of function ‘iounmap’ [-Werror=implicit-function-declaration Signed-off-by: Richard Weinberger Signed-off-by: Jonathan Cameron --- drivers/staging/iio/adc/Kconfig | 1 + 1 file changed, 1 insertion(+) diff --git a/drivers/staging/iio/adc/Kconfig b/drivers/staging/iio/adc/Kconfig index e3d643001952..7d5d6755db7f 100644 --- a/drivers/staging/iio/adc/Kconfig +++ b/drivers/staging/iio/adc/Kconfig @@ -128,6 +128,7 @@ config MXS_LRADC config SPEAR_ADC tristate "ST SPEAr ADC" depends on PLAT_SPEAR || COMPILE_TEST + depends on HAS_IOMEM help Say yes here to build support for the integrated ADC inside the ST SPEAr SoC. Provides direct access via sysfs. From 8c314da583c9d5c67fe59aa8c92f94f15cb8de90 Mon Sep 17 00:00:00 2001 From: Richard Weinberger Date: Tue, 14 Jan 2014 15:45:00 +0000 Subject: [PATCH 07/55] staging:iio:lpc32xx_adc: Add dependency on HAS_IOMEM On archs like S390 or um this driver cannot build nor work. Make it depend on HAS_IOMEM to bypass build failures. drivers/built-in.o: In function `lpc32xx_adc_probe': drivers/staging/iio/adc/lpc32xx_adc.c:149: undefined reference to `devm_ioremap' Signed-off-by: Richard Weinberger Signed-off-by: Jonathan Cameron --- drivers/staging/iio/adc/Kconfig | 1 + 1 file changed, 1 insertion(+) diff --git a/drivers/staging/iio/adc/Kconfig b/drivers/staging/iio/adc/Kconfig index 7d5d6755db7f..363329808a4f 100644 --- a/drivers/staging/iio/adc/Kconfig +++ b/drivers/staging/iio/adc/Kconfig @@ -103,6 +103,7 @@ config AD7280 config LPC32XX_ADC tristate "NXP LPC32XX ADC" depends on ARCH_LPC32XX || COMPILE_TEST + depends on HAS_IOMEM help Say yes here to build support for the integrated ADC inside the LPC32XX SoC. Note that this feature uses the same hardware as the From b5ea14924718864d64f4cb12a6d901ffeb2972ad Mon Sep 17 00:00:00 2001 From: Russell King Date: Tue, 17 Dec 2013 19:10:27 +0000 Subject: [PATCH 08/55] imx-drm: imx-drm-core: use the crtc drm device for vblank There are a couple of ways to get at the drm_device for the vblank operations. One of them is via the private imxdrm structure, the other is via the DRM crtc structure, which also stores a pointer. Use the DRM method instead of our own method. Signed-off-by: Russell King Acked-by: Shawn Guo Tested-by: Shawn Guo Signed-off-by: Greg Kroah-Hartman --- drivers/staging/imx-drm/imx-drm-core.c | 6 +++--- 1 file changed, 3 insertions(+), 3 deletions(-) diff --git a/drivers/staging/imx-drm/imx-drm-core.c b/drivers/staging/imx-drm/imx-drm-core.c index 09ef5fb8bae6..830f76f5d9bd 100644 --- a/drivers/staging/imx-drm/imx-drm-core.c +++ b/drivers/staging/imx-drm/imx-drm-core.c @@ -142,19 +142,19 @@ EXPORT_SYMBOL_GPL(imx_drm_crtc_panel_format); int imx_drm_crtc_vblank_get(struct imx_drm_crtc *imx_drm_crtc) { - return drm_vblank_get(imx_drm_crtc->imxdrm->drm, imx_drm_crtc->pipe); + return drm_vblank_get(imx_drm_crtc->crtc->dev, imx_drm_crtc->pipe); } EXPORT_SYMBOL_GPL(imx_drm_crtc_vblank_get); void imx_drm_crtc_vblank_put(struct imx_drm_crtc *imx_drm_crtc) { - drm_vblank_put(imx_drm_crtc->imxdrm->drm, imx_drm_crtc->pipe); + drm_vblank_put(imx_drm_crtc->crtc->dev, imx_drm_crtc->pipe); } EXPORT_SYMBOL_GPL(imx_drm_crtc_vblank_put); void imx_drm_handle_vblank(struct imx_drm_crtc *imx_drm_crtc) { - drm_handle_vblank(imx_drm_crtc->imxdrm->drm, imx_drm_crtc->pipe); + drm_handle_vblank(imx_drm_crtc->crtc->dev, imx_drm_crtc->pipe); } EXPORT_SYMBOL_GPL(imx_drm_handle_vblank); From 020a9ea7c2206be4382a09cbafc7c3bdf5bbf8a5 Mon Sep 17 00:00:00 2001 From: Russell King Date: Tue, 17 Dec 2013 19:10:47 +0000 Subject: [PATCH 09/55] imx-drm: imx-drm-core: avoid going the long route round for drm_device We have the drm_device available, so rather than storing it and then using the stored version, us the one we already have available to us. Signed-off-by: Russell King Acked-by: Shawn Guo Tested-by: Shawn Guo Signed-off-by: Greg Kroah-Hartman --- drivers/staging/imx-drm/imx-drm-core.c | 16 ++++++++-------- 1 file changed, 8 insertions(+), 8 deletions(-) diff --git a/drivers/staging/imx-drm/imx-drm-core.c b/drivers/staging/imx-drm/imx-drm-core.c index 830f76f5d9bd..87d08f4be8d3 100644 --- a/drivers/staging/imx-drm/imx-drm-core.c +++ b/drivers/staging/imx-drm/imx-drm-core.c @@ -88,9 +88,9 @@ static int imx_drm_driver_unload(struct drm_device *drm) imx_drm_device_put(); - drm_vblank_cleanup(imxdrm->drm); - drm_kms_helper_poll_fini(imxdrm->drm); - drm_mode_config_cleanup(imxdrm->drm); + drm_vblank_cleanup(drm); + drm_kms_helper_poll_fini(drm); + drm_mode_config_cleanup(drm); return 0; } @@ -424,15 +424,15 @@ static int imx_drm_driver_load(struct drm_device *drm, unsigned long flags) mutex_lock(&imxdrm->mutex); - drm_kms_helper_poll_init(imxdrm->drm); + drm_kms_helper_poll_init(drm); /* setup the grouping for the legacy output */ - ret = drm_mode_group_init_legacy_group(imxdrm->drm, - &imxdrm->drm->primary->mode_group); + ret = drm_mode_group_init_legacy_group(drm, + &drm->primary->mode_group); if (ret) goto err_kms; - ret = drm_vblank_init(imxdrm->drm, MAX_CRTC); + ret = drm_vblank_init(drm, MAX_CRTC); if (ret) goto err_kms; @@ -441,7 +441,7 @@ static int imx_drm_driver_load(struct drm_device *drm, unsigned long flags) * by drm timer once a current process gives up ownership of * vblank event.(after drm_vblank_put function is called) */ - imxdrm->drm->vblank_disable_allowed = true; + drm->vblank_disable_allowed = true; if (!imx_drm_device_get()) { ret = -EINVAL; From ec9557d752e8758297ddecb34d0aca264616ecb2 Mon Sep 17 00:00:00 2001 From: Russell King Date: Tue, 17 Dec 2013 19:11:07 +0000 Subject: [PATCH 10/55] imx-drm: imx-drm-core: merge imx_drm_crtc_register() into imx_drm_add_crtc() There's no reason for this to be a separate function; merge the two together. Signed-off-by: Russell King Acked-by: Shawn Guo Tested-by: Shawn Guo Signed-off-by: Greg Kroah-Hartman --- drivers/staging/imx-drm/imx-drm-core.c | 33 +++++++------------------- 1 file changed, 9 insertions(+), 24 deletions(-) diff --git a/drivers/staging/imx-drm/imx-drm-core.c b/drivers/staging/imx-drm/imx-drm-core.c index 87d08f4be8d3..236ed66f116a 100644 --- a/drivers/staging/imx-drm/imx-drm-core.c +++ b/drivers/staging/imx-drm/imx-drm-core.c @@ -369,29 +369,6 @@ static void imx_drm_connector_unregister( drm_mode_group_reinit(imxdrm->drm); } -/* - * register a crtc to the drm core - */ -static int imx_drm_crtc_register(struct imx_drm_crtc *imx_drm_crtc) -{ - struct imx_drm_device *imxdrm = __imx_drm_device(); - int ret; - - ret = drm_mode_crtc_set_gamma_size(imx_drm_crtc->crtc, 256); - if (ret) - return ret; - - drm_crtc_helper_add(imx_drm_crtc->crtc, - imx_drm_crtc->imx_drm_helper_funcs.crtc_helper_funcs); - - drm_crtc_init(imxdrm->drm, imx_drm_crtc->crtc, - imx_drm_crtc->imx_drm_helper_funcs.crtc_funcs); - - drm_mode_group_reinit(imxdrm->drm); - - return 0; -} - /* * Called by the CRTC driver when all CRTCs are registered. This * puts all the pieces together and initializes the driver. @@ -536,10 +513,18 @@ int imx_drm_add_crtc(struct drm_crtc *crtc, *new_crtc = imx_drm_crtc; - ret = imx_drm_crtc_register(imx_drm_crtc); + ret = drm_mode_crtc_set_gamma_size(imx_drm_crtc->crtc, 256); if (ret) goto err_register; + drm_crtc_helper_add(crtc, + imx_drm_crtc->imx_drm_helper_funcs.crtc_helper_funcs); + + drm_crtc_init(imxdrm->drm, crtc, + imx_drm_crtc->imx_drm_helper_funcs.crtc_funcs); + + drm_mode_group_reinit(imxdrm->drm); + imx_drm_update_possible_crtcs(); mutex_unlock(&imxdrm->mutex); From 5a819ed6d4bb803ee609b4ceedd7c8efbbfa65e0 Mon Sep 17 00:00:00 2001 From: Sachin Kamat Date: Tue, 28 Jan 2014 10:33:16 +0530 Subject: [PATCH 11/55] staging: imx-drm: Fix build error MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Instead of redefining the enums, use the standard ones already available to avoid the following build errors: drivers/staging/imx-drm/imx-hdmi.c:56:13: error: nested redefinition of ‘enum hdmi_colorimetry’ drivers/staging/imx-drm/imx-hdmi.c:56:13: error: redeclaration of ‘enum hdmi_colorimetry’ In file included from include/drm/drm_crtc.h:33:0, from include/drm/drmP.h:710, from drivers/staging/imx-drm/imx-hdmi.c:24: include/linux/hdmi.h:48:6: note: originally defined here Reported-by: Josh Boyer Signed-off-by: Sachin Kamat Cc: Guennadi Liakhovetski Reviewed-by: Fabio Estevam Signed-off-by: Greg Kroah-Hartman --- drivers/staging/imx-drm/imx-hdmi.c | 22 +++++++++------------- 1 file changed, 9 insertions(+), 13 deletions(-) diff --git a/drivers/staging/imx-drm/imx-hdmi.c b/drivers/staging/imx-drm/imx-hdmi.c index f3a1f5e2e492..62ce0e86f14b 100644 --- a/drivers/staging/imx-drm/imx-hdmi.c +++ b/drivers/staging/imx-drm/imx-hdmi.c @@ -16,6 +16,7 @@ #include #include #include +#include #include #include #include @@ -52,11 +53,6 @@ enum hdmi_datamap { YCbCr422_12B = 0x12, }; -enum hdmi_colorimetry { - ITU601, - ITU709, -}; - enum imx_hdmi_devtype { IMX6Q_HDMI, IMX6DL_HDMI, @@ -489,12 +485,12 @@ static void imx_hdmi_update_csc_coeffs(struct imx_hdmi *hdmi) if (is_color_space_conversion(hdmi)) { if (hdmi->hdmi_data.enc_out_format == RGB) { - if (hdmi->hdmi_data.colorimetry == ITU601) + if (hdmi->hdmi_data.colorimetry == HDMI_COLORIMETRY_ITU_601) csc_coeff = &csc_coeff_rgb_out_eitu601; else csc_coeff = &csc_coeff_rgb_out_eitu709; } else if (hdmi->hdmi_data.enc_in_format == RGB) { - if (hdmi->hdmi_data.colorimetry == ITU601) + if (hdmi->hdmi_data.colorimetry == HDMI_COLORIMETRY_ITU_601) csc_coeff = &csc_coeff_rgb_in_eitu601; else csc_coeff = &csc_coeff_rgb_in_eitu709; @@ -1140,16 +1136,16 @@ static void hdmi_config_AVI(struct imx_hdmi *hdmi) /* Set up colorimetry */ if (hdmi->hdmi_data.enc_out_format == XVYCC444) { colorimetry = HDMI_FC_AVICONF1_COLORIMETRY_EXTENDED_INFO; - if (hdmi->hdmi_data.colorimetry == ITU601) + if (hdmi->hdmi_data.colorimetry == HDMI_COLORIMETRY_ITU_601) ext_colorimetry = HDMI_FC_AVICONF2_EXT_COLORIMETRY_XVYCC601; - else /* hdmi->hdmi_data.colorimetry == ITU709 */ + else /*hdmi->hdmi_data.colorimetry == HDMI_COLORIMETRY_ITU_709*/ ext_colorimetry = HDMI_FC_AVICONF2_EXT_COLORIMETRY_XVYCC709; } else if (hdmi->hdmi_data.enc_out_format != RGB) { - if (hdmi->hdmi_data.colorimetry == ITU601) + if (hdmi->hdmi_data.colorimetry == HDMI_COLORIMETRY_ITU_601) colorimetry = HDMI_FC_AVICONF1_COLORIMETRY_SMPTE; - else /* hdmi->hdmi_data.colorimetry == ITU709 */ + else /*hdmi->hdmi_data.colorimetry == HDMI_COLORIMETRY_ITU_709*/ colorimetry = HDMI_FC_AVICONF1_COLORIMETRY_ITUR; ext_colorimetry = HDMI_FC_AVICONF2_EXT_COLORIMETRY_XVYCC601; } else { /* Carries no data */ @@ -1379,9 +1375,9 @@ static int imx_hdmi_setup(struct imx_hdmi *hdmi, struct drm_display_mode *mode) (hdmi->vic == 21) || (hdmi->vic == 22) || (hdmi->vic == 2) || (hdmi->vic == 3) || (hdmi->vic == 17) || (hdmi->vic == 18)) - hdmi->hdmi_data.colorimetry = ITU601; + hdmi->hdmi_data.colorimetry = HDMI_COLORIMETRY_ITU_601; else - hdmi->hdmi_data.colorimetry = ITU709; + hdmi->hdmi_data.colorimetry = HDMI_COLORIMETRY_ITU_709; if ((hdmi->vic == 10) || (hdmi->vic == 11) || (hdmi->vic == 12) || (hdmi->vic == 13) || From 10f6f9c38a422451989eb4e36a14788b1799b491 Mon Sep 17 00:00:00 2001 From: Chen Gang Date: Sat, 18 Jan 2014 17:04:06 +0800 Subject: [PATCH 12/55] drivers: staging: android: ion: ion_dummy_driver: include "linux/io.h" Need add "linux/io.h" to pass compiling under metag architecture with allmodconfig (which use the default 'virt_to_phys'), the related error: CC drivers/staging/android/ion/ion_dummy_driver.o drivers/staging/android/ion/ion_dummy_driver.c: In function 'ion_dummy_init': drivers/staging/android/ion/ion_dummy_driver.c:81: error: implicit declaration of function 'virt_to_phys' Signed-off-by: Chen Gang Signed-off-by: Greg Kroah-Hartman --- drivers/staging/android/ion/ion_dummy_driver.c | 1 + 1 file changed, 1 insertion(+) diff --git a/drivers/staging/android/ion/ion_dummy_driver.c b/drivers/staging/android/ion/ion_dummy_driver.c index 55b2002753f2..3854df7d6629 100644 --- a/drivers/staging/android/ion/ion_dummy_driver.c +++ b/drivers/staging/android/ion/ion_dummy_driver.c @@ -20,6 +20,7 @@ #include #include #include +#include #include "ion.h" #include "ion_priv.h" From 18691f53bcaab1226f22b733189ec9da190bb7a2 Mon Sep 17 00:00:00 2001 From: Tomas Winkler Date: Wed, 22 Jan 2014 19:15:55 +0200 Subject: [PATCH 13/55] ion: dummy driver: use ARRAY_SIZE for nr of heaps use ARRAY_SIZE to count number of heaps in static array Signed-off-by: Tomas Winkler Signed-off-by: Greg Kroah-Hartman --- drivers/staging/android/ion/ion_dummy_driver.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/staging/android/ion/ion_dummy_driver.c b/drivers/staging/android/ion/ion_dummy_driver.c index 3854df7d6629..f8a7a3244371 100644 --- a/drivers/staging/android/ion/ion_dummy_driver.c +++ b/drivers/staging/android/ion/ion_dummy_driver.c @@ -58,7 +58,7 @@ struct ion_platform_heap dummy_heaps[] = { }; struct ion_platform_data dummy_ion_pdata = { - .nr = 4, + .nr = ARRAY_SIZE(dummy_heaps), .heaps = dummy_heaps, }; From 102f1a2a496a76f16675ee4bf13e2a5e512c447e Mon Sep 17 00:00:00 2001 From: Paul Gortmaker Date: Tue, 21 Jan 2014 16:22:12 -0500 Subject: [PATCH 14/55] staging: don't use module_init in non-modular ion_dummy_driver.c The ION_DUMMY option is bool, and hence this code is either present or absent. It will never be modular, so using module_init as an alias for __initcall is rather misleading. Fix this up now, so that we can relocate module_init from init.h into module.h in the future. If we don't do this, we'd have to add module.h to obviously non-modular code, and that would be a worse thing. Note that direct use of __initcall is discouraged, vs. one of the priority categorized subgroups. As __initcall gets mapped onto device_initcall, our use of device_initcall directly in this change means that the runtime impact is zero -- it will remain at level 6 in initcall ordering. Cc: Colin Cross Cc: Jesse Barker Cc: Android Kernel Team Cc: John Stultz Cc: Greg Kroah-Hartman Signed-off-by: Paul Gortmaker Signed-off-by: Greg Kroah-Hartman --- drivers/staging/android/ion/ion_dummy_driver.c | 7 +++---- 1 file changed, 3 insertions(+), 4 deletions(-) diff --git a/drivers/staging/android/ion/ion_dummy_driver.c b/drivers/staging/android/ion/ion_dummy_driver.c index f8a7a3244371..df8228b08856 100644 --- a/drivers/staging/android/ion/ion_dummy_driver.c +++ b/drivers/staging/android/ion/ion_dummy_driver.c @@ -17,6 +17,7 @@ #include #include #include +#include #include #include #include @@ -129,6 +130,7 @@ err: } return err; } +device_initcall(ion_dummy_init); static void __exit ion_dummy_exit(void) { @@ -153,7 +155,4 @@ static void __exit ion_dummy_exit(void) return; } - -module_init(ion_dummy_init); -module_exit(ion_dummy_exit); - +__exitcall(ion_dummy_exit); From bbd9ae8a05e05a608ff9158cf3b95be7b857a6fa Mon Sep 17 00:00:00 2001 From: Greg Hackmann Date: Tue, 4 Feb 2014 16:08:34 -0800 Subject: [PATCH 15/55] staging: sw_sync: Add stubs for kernels without CONFIG_SW_SYNC Add stubs for kernels without CONFIG_SW_SYNC Cc: Colin Cross Cc: Android Kernel Team Signed-off-by: Greg Hackmann [jstultz: resolved minor conflict, tweaked commit message] Signed-off-by: John Stultz Signed-off-by: Greg Kroah-Hartman --- drivers/staging/android/sw_sync.h | 17 +++++++++++++++++ 1 file changed, 17 insertions(+) diff --git a/drivers/staging/android/sw_sync.h b/drivers/staging/android/sw_sync.h index 585040be5f18..5aaf71d6974b 100644 --- a/drivers/staging/android/sw_sync.h +++ b/drivers/staging/android/sw_sync.h @@ -35,10 +35,27 @@ struct sw_sync_pt { u32 value; }; +#if IS_ENABLED(CONFIG_SW_SYNC) struct sw_sync_timeline *sw_sync_timeline_create(const char *name); void sw_sync_timeline_inc(struct sw_sync_timeline *obj, u32 inc); struct sync_pt *sw_sync_pt_create(struct sw_sync_timeline *obj, u32 value); +#else +static inline struct sw_sync_timeline *sw_sync_timeline_create(const char *name) +{ + return NULL; +} + +static inline void sw_sync_timeline_inc(struct sw_sync_timeline *obj, u32 inc) +{ +} + +static inline struct sync_pt *sw_sync_pt_create(struct sw_sync_timeline *obj, + u32 value) +{ + return NULL; +} +#endif /* IS_ENABLED(CONFIG_SW_SYNC) */ #endif /* __KERNEL __ */ From 5cf045f54d31894ec59ee741e01fa258be2ba0fb Mon Sep 17 00:00:00 2001 From: Alistair Strachan Date: Tue, 4 Feb 2014 16:08:36 -0800 Subject: [PATCH 16/55] staging: sync: Fix a race condition between release_obj and print_obj Before this change, a timeline would only be removed from the timeline list *after* the sync driver had its release_obj() called. However, the driver's release_obj() may free resources needed by print_obj(). Although the timeline list is locked when print_obj() is called, it is not locked when release_obj() is called. If one CPU was in print_obj() when another was in release_obj(), the print_obj() may make unsafe accesses. It is not actually necessary to hold the timeline list lock when calling release_obj() if the call is made after the timeline is unlinked from the list, since there is no possibility another thread could be in -- or enter -- print_obj() for that timeline. This change moves the release_obj() call to after the timeline is unlinked, preventing the above race from occurring. Cc: Colin Cross Cc: Android Kernel Team Signed-off-by: Alistair Strachan [jstultz: minor commit subject tweak] Signed-off-by: John Stultz Signed-off-by: Greg Kroah-Hartman --- drivers/staging/android/sync.c | 6 +++--- 1 file changed, 3 insertions(+), 3 deletions(-) diff --git a/drivers/staging/android/sync.c b/drivers/staging/android/sync.c index 38e5d3b5ed9b..b7fcaab0acea 100644 --- a/drivers/staging/android/sync.c +++ b/drivers/staging/android/sync.c @@ -79,13 +79,13 @@ static void sync_timeline_free(struct kref *kref) container_of(kref, struct sync_timeline, kref); unsigned long flags; - if (obj->ops->release_obj) - obj->ops->release_obj(obj); - spin_lock_irqsave(&sync_timeline_list_lock, flags); list_del(&obj->sync_timeline_list); spin_unlock_irqrestore(&sync_timeline_list_lock, flags); + if (obj->ops->release_obj) + obj->ops->release_obj(obj); + kfree(obj); } From 077f6db9731673753ca41a5c3acbb5ead142658a Mon Sep 17 00:00:00 2001 From: Todd Poynor Date: Tue, 4 Feb 2014 16:08:37 -0800 Subject: [PATCH 17/55] staging: ashmem: Avoid deadlock between read and mmap calls Avoid holding ashmem_mutex across code that can page fault. Page faults grab the mmap_sem for the process, which are also held by mmap calls prior to calling ashmem_mmap, which locks ashmem_mutex. The reversed order of locking between the two can deadlock. The calls that can page fault are read() and the ASHMEM_SET_NAME and ASHMEM_GET_NAME ioctls. Move the code that accesses userspace pages outside the ashmem_mutex. Cc: Colin Cross Cc: Android Kernel Team Signed-off-by: Todd Poynor [jstultz: minor commit message tweaks] Signed-off-by: John Stultz Signed-off-by: Greg Kroah-Hartman --- drivers/staging/android/ashmem.c | 45 ++++++++++++++++++-------------- 1 file changed, 26 insertions(+), 19 deletions(-) diff --git a/drivers/staging/android/ashmem.c b/drivers/staging/android/ashmem.c index 23948f167012..713a97226787 100644 --- a/drivers/staging/android/ashmem.c +++ b/drivers/staging/android/ashmem.c @@ -295,21 +295,29 @@ static ssize_t ashmem_read(struct file *file, char __user *buf, /* If size is not set, or set to 0, always return EOF. */ if (asma->size == 0) - goto out; + goto out_unlock; if (!asma->file) { ret = -EBADF; - goto out; + goto out_unlock; } + mutex_unlock(&ashmem_mutex); + + /* + * asma and asma->file are used outside the lock here. We assume + * once asma->file is set it will never be changed, and will not + * be destroyed until all references to the file are dropped and + * ashmem_release is called. + */ ret = asma->file->f_op->read(asma->file, buf, len, pos); - if (ret < 0) - goto out; + if (ret >= 0) { + /** Update backing file pos, since f_ops->read() doesn't */ + asma->file->f_pos = *pos; + } + return ret; - /** Update backing file pos, since f_ops->read() doesn't */ - asma->file->f_pos = *pos; - -out: +out_unlock: mutex_unlock(&ashmem_mutex); return ret; } @@ -498,6 +506,7 @@ out: static int set_name(struct ashmem_area *asma, void __user *name) { + int len; int ret = 0; char local_name[ASHMEM_NAME_LEN]; @@ -510,21 +519,19 @@ static int set_name(struct ashmem_area *asma, void __user *name) * variable that does not need protection and later copy the local * variable to the structure member with lock held. */ - if (copy_from_user(local_name, name, ASHMEM_NAME_LEN)) - return -EFAULT; - + len = strncpy_from_user(local_name, name, ASHMEM_NAME_LEN); + if (len < 0) + return len; + if (len == ASHMEM_NAME_LEN) + local_name[ASHMEM_NAME_LEN - 1] = '\0'; mutex_lock(&ashmem_mutex); /* cannot change an existing mapping's name */ - if (unlikely(asma->file)) { + if (unlikely(asma->file)) ret = -EINVAL; - goto out; - } - memcpy(asma->name + ASHMEM_NAME_PREFIX_LEN, - local_name, ASHMEM_NAME_LEN); - asma->name[ASHMEM_FULL_NAME_LEN-1] = '\0'; -out: - mutex_unlock(&ashmem_mutex); + else + strcpy(asma->name + ASHMEM_NAME_PREFIX_LEN, local_name); + mutex_unlock(&ashmem_mutex); return ret; } From c9e8440eca61298ecccbb27f53036124a7a3c6c8 Mon Sep 17 00:00:00 2001 From: Colin Cross Date: Tue, 4 Feb 2014 16:08:38 -0800 Subject: [PATCH 18/55] staging: ion: Fix overflow and list bugs in system heap Fix a few bugs in ion_system_heap: Initialize the list node in the info block. Don't store size_remaining in a signed long, allocating >2GB could overflow, resulting in a call to sg_alloc_table with nents=0 which panics. alloc_largest_available will never return a block larger than size_remanining, so it can never go negative. Limit a single allocation to half of all memory. Prevents a large allocation from taking down the whole system. Cc: Colin Cross Cc: Android Kernel Team Signed-off-by: Colin Cross [jstultz: Minor commit subject tweak] Signed-off-by: John Stultz Signed-off-by: Greg Kroah-Hartman --- drivers/staging/android/ion/ion_system_heap.c | 6 +++++- 1 file changed, 5 insertions(+), 1 deletion(-) diff --git a/drivers/staging/android/ion/ion_system_heap.c b/drivers/staging/android/ion/ion_system_heap.c index 7f0729130d65..9849f3963e75 100644 --- a/drivers/staging/android/ion/ion_system_heap.c +++ b/drivers/staging/android/ion/ion_system_heap.c @@ -124,6 +124,7 @@ static struct page_info *alloc_largest_available(struct ion_system_heap *heap, info->page = page; info->order = orders[i]; + INIT_LIST_HEAD(&info->list); return info; } kfree(info); @@ -145,12 +146,15 @@ static int ion_system_heap_allocate(struct ion_heap *heap, struct list_head pages; struct page_info *info, *tmp_info; int i = 0; - long size_remaining = PAGE_ALIGN(size); + unsigned long size_remaining = PAGE_ALIGN(size); unsigned int max_order = orders[0]; if (align > PAGE_SIZE) return -EINVAL; + if (size / PAGE_SIZE > totalram_pages / 2) + return -ENOMEM; + INIT_LIST_HEAD(&pages); while (size_remaining > 0) { info = alloc_largest_available(sys_heap, buffer, size_remaining, From 8666a87611fbd8597111c96e93a2f075664ee392 Mon Sep 17 00:00:00 2001 From: Laura Abbott Date: Tue, 4 Feb 2014 16:08:39 -0800 Subject: [PATCH 19/55] staging: ion: Fix ION_IOC_FREE compat ioctl The compat ioctl for ION_IOC_FREE currently passes allocation data instead of the free data. Correct this. Cc: Colin Cross Cc: Android Kernel Team Signed-off-by: Laura Abbott [jstultz: Folded in a small build fix] Signed-off-by: John Stultz Signed-off-by: Greg Kroah-Hartman --- drivers/staging/android/ion/compat_ion.c | 26 ++++++++++++++++++++---- 1 file changed, 22 insertions(+), 4 deletions(-) diff --git a/drivers/staging/android/ion/compat_ion.c b/drivers/staging/android/ion/compat_ion.c index af6cd370b30f..ee3a7380e53b 100644 --- a/drivers/staging/android/ion/compat_ion.c +++ b/drivers/staging/android/ion/compat_ion.c @@ -35,9 +35,14 @@ struct compat_ion_custom_data { compat_ulong_t arg; }; +struct compat_ion_handle_data { + compat_int_t handle; +}; + #define COMPAT_ION_IOC_ALLOC _IOWR(ION_IOC_MAGIC, 0, \ struct compat_ion_allocation_data) -#define COMPAT_ION_IOC_FREE _IOWR(ION_IOC_MAGIC, 1, struct ion_handle_data) +#define COMPAT_ION_IOC_FREE _IOWR(ION_IOC_MAGIC, 1, \ + struct compat_ion_handle_data) #define COMPAT_ION_IOC_CUSTOM _IOWR(ION_IOC_MAGIC, 6, \ struct compat_ion_custom_data) @@ -64,6 +69,19 @@ static int compat_get_ion_allocation_data( return err; } +static int compat_get_ion_handle_data( + struct compat_ion_handle_data __user *data32, + struct ion_handle_data __user *data) +{ + compat_int_t i; + int err; + + err = get_user(i, &data32->handle); + err |= put_user(i, &data->handle); + + return err; +} + static int compat_put_ion_allocation_data( struct compat_ion_allocation_data __user *data32, struct ion_allocation_data __user *data) @@ -132,8 +150,8 @@ long compat_ion_ioctl(struct file *filp, unsigned int cmd, unsigned long arg) } case COMPAT_ION_IOC_FREE: { - struct compat_ion_allocation_data __user *data32; - struct ion_allocation_data __user *data; + struct compat_ion_handle_data __user *data32; + struct ion_handle_data __user *data; int err; data32 = compat_ptr(arg); @@ -141,7 +159,7 @@ long compat_ion_ioctl(struct file *filp, unsigned int cmd, unsigned long arg) if (data == NULL) return -EFAULT; - err = compat_get_ion_allocation_data(data32, data); + err = compat_get_ion_handle_data(data32, data); if (err) return err; From a33b2fc5a9a131eb0a82846f55d7775b28cb2fcb Mon Sep 17 00:00:00 2001 From: John Stultz Date: Tue, 4 Feb 2014 16:08:40 -0800 Subject: [PATCH 20/55] staging: ion: Fix build warning MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Add #include to fix the following warning seen with gcc 4.7.3: In file included from drivers/staging/android/ion/ion_heap.c:26:0: drivers/staging/android/ion/ion_priv.h:358:21: warning: ‘struct device’ declared inside parameter list [enabled by default] drivers/staging/android/ion/ion_priv.h:358:21: warning: its scope is only this definition or declaration, which is probably not what you want [enabled by default] Cc: Colin Cross Cc: Android Kernel Team Signed-off-by: John Stultz Signed-off-by: Greg Kroah-Hartman --- drivers/staging/android/ion/ion_priv.h | 1 + 1 file changed, 1 insertion(+) diff --git a/drivers/staging/android/ion/ion_priv.h b/drivers/staging/android/ion/ion_priv.h index d98673981cc4..fc2e4fccf69d 100644 --- a/drivers/staging/android/ion/ion_priv.h +++ b/drivers/staging/android/ion/ion_priv.h @@ -17,6 +17,7 @@ #ifndef _ION_PRIV_H #define _ION_PRIV_H +#include #include #include #include From 1ebf5b72dc8bfbe5e7866ee1a2eb935fc7d050e6 Mon Sep 17 00:00:00 2001 From: Marek Szyprowski Date: Fri, 17 Jan 2014 09:46:56 +0100 Subject: [PATCH 21/55] staging: lustre: fix GFP_ATOMIC macro usage GFP_ATOMIC is not a single gfp flag, but a macro which expands to the other flags and LACK of __GFP_WAIT flag. To check if caller wanted to perform an atomic allocation, the code must test __GFP_WAIT flag presence. Signed-off-by: Marek Szyprowski Signed-off-by: Greg Kroah-Hartman --- drivers/staging/lustre/include/linux/libcfs/libcfs_private.h | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/staging/lustre/include/linux/libcfs/libcfs_private.h b/drivers/staging/lustre/include/linux/libcfs/libcfs_private.h index d0d942ced01a..dddccca120c9 100644 --- a/drivers/staging/lustre/include/linux/libcfs/libcfs_private.h +++ b/drivers/staging/lustre/include/linux/libcfs/libcfs_private.h @@ -120,7 +120,7 @@ do { \ do { \ LASSERT(!in_interrupt() || \ ((size) <= LIBCFS_VMALLOC_SIZE && \ - ((mask) & GFP_ATOMIC)) != 0); \ + ((mask) & __GFP_WAIT) == 0)); \ } while (0) #define LIBCFS_ALLOC_POST(ptr, size) \ From 52481e4b00f0f2922f2b0d3a3ee392677476c250 Mon Sep 17 00:00:00 2001 From: Oleg Drokin Date: Thu, 23 Jan 2014 23:45:04 -0500 Subject: [PATCH 22/55] staging/lustre: fix compile warning with is_vmalloc_addr MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Recent commit 175f5475fb9c5800319da4e3c4204413d7280f5c introduced this compile warning (because vaddr is unsigned long), so add a cast: drivers/staging/lustre/lnet/klnds/o2iblnd/o2iblnd_cb.c: In function ‘kiblnd_kvaddr_to_page’: drivers/staging/lustre/lnet/klnds/o2iblnd/o2iblnd_cb.c:532:2: warning: passing argument 1 of ‘is_vmalloc_addr’ makes pointer from integer without a cast [enabled by default] if (is_vmalloc_addr(vaddr)) { ^ In file included from drivers/staging/lustre/lnet/klnds/o2iblnd/o2iblnd.h:43:0, from drivers/staging/lustre/lnet/klnds/o2iblnd/o2iblnd_cb.c:41: include/linux/mm.h:336:59: note: expected ‘const void *’ but argument is of type ‘long unsigned int’ static inline int is_vmalloc_addr(const void *x) Signed-off-by: Oleg Drokin CC: Laura Abbott Signed-off-by: Greg Kroah-Hartman --- drivers/staging/lustre/lnet/klnds/o2iblnd/o2iblnd_cb.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/staging/lustre/lnet/klnds/o2iblnd/o2iblnd_cb.c b/drivers/staging/lustre/lnet/klnds/o2iblnd/o2iblnd_cb.c index 93648632ba26..6f58ead20393 100644 --- a/drivers/staging/lustre/lnet/klnds/o2iblnd/o2iblnd_cb.c +++ b/drivers/staging/lustre/lnet/klnds/o2iblnd/o2iblnd_cb.c @@ -529,7 +529,7 @@ kiblnd_kvaddr_to_page (unsigned long vaddr) { struct page *page; - if (is_vmalloc_addr(vaddr)) { + if (is_vmalloc_addr((void *)vaddr)) { page = vmalloc_to_page ((void *)vaddr); LASSERT (page != NULL); return page; From aadbacc7f2f0f359bd562cb95adde3da348fb643 Mon Sep 17 00:00:00 2001 From: Oleg Drokin Date: Thu, 23 Jan 2014 23:45:05 -0500 Subject: [PATCH 23/55] staging/lustre/lnet: Fix use after free in ksocknal_send Call to ksocknal_launch_packet might schedule a callback that might free the just sent message, and so subsequent access to it via lntmsg->msg_vmflush goes to freed memory. Instead we'll just remember if we are in the vmflush thread and only restore if we happened to set mempressure flag. Signed-off-by: Oleg Drokin Reviewed-on: http://review.whamcloud.com/8667 Intel-bug-id: https://jira.hpdd.intel.com/browse/LU-4360 Reviewed-by: Liang Zhen Reviewed-by: Amir Shehata Signed-off-by: Greg Kroah-Hartman --- drivers/staging/lustre/lnet/klnds/socklnd/socklnd_cb.c | 5 +++-- 1 file changed, 3 insertions(+), 2 deletions(-) diff --git a/drivers/staging/lustre/lnet/klnds/socklnd/socklnd_cb.c b/drivers/staging/lustre/lnet/klnds/socklnd/socklnd_cb.c index 68a4f52ec998..b7b53b579c85 100644 --- a/drivers/staging/lustre/lnet/klnds/socklnd/socklnd_cb.c +++ b/drivers/staging/lustre/lnet/klnds/socklnd/socklnd_cb.c @@ -924,7 +924,7 @@ ksocknal_launch_packet (lnet_ni_t *ni, ksock_tx_t *tx, lnet_process_id_t id) int ksocknal_send(lnet_ni_t *ni, void *private, lnet_msg_t *lntmsg) { - int mpflag = 0; + int mpflag = 1; int type = lntmsg->msg_type; lnet_process_id_t target = lntmsg->msg_target; unsigned int payload_niov = lntmsg->msg_niov; @@ -993,8 +993,9 @@ ksocknal_send(lnet_ni_t *ni, void *private, lnet_msg_t *lntmsg) /* The first fragment will be set later in pro_pack */ rc = ksocknal_launch_packet(ni, tx, target); - if (lntmsg->msg_vmflush) + if (!mpflag) cfs_memory_pressure_restore(mpflag); + if (rc == 0) return (0); From 910827f17496e03d23577c580e2456604caa9f35 Mon Sep 17 00:00:00 2001 From: Oleg Drokin Date: Thu, 23 Jan 2014 23:45:06 -0500 Subject: [PATCH 24/55] lustre: Account for changelog_ext_rec in CR_MAXSIZE CR_MAXSIZE needs to account for an llog_changelog_rec that actually contains a changelog_ext_rec structure rather than a changelog_rec. With out doing so, a file size approaching the Linux kernel NAME_MAX length that is renamed to a size also close to, or at, NAME_MAX will exceed CR_MAXSIZE and trip an assertion. Signed-off-by: Christopher J. Morrone Reviewed-on: http://review.whamcloud.com/6993 Intel-bug-id: https://jira.hpdd.intel.com/browse/LU-3587 Reviewed-by: Niu Yawei Reviewed-by: Lai Siyao Reviewed-by: Oleg Drokin Signed-off-by: Oleg Drokin Signed-off-by: Greg Kroah-Hartman --- drivers/staging/lustre/lustre/include/lustre/lustre_user.h | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) diff --git a/drivers/staging/lustre/lustre/include/lustre/lustre_user.h b/drivers/staging/lustre/lustre/include/lustre/lustre_user.h index 6b6c0240e824..7893d83e131f 100644 --- a/drivers/staging/lustre/lustre/include/lustre/lustre_user.h +++ b/drivers/staging/lustre/lustre/include/lustre/lustre_user.h @@ -760,7 +760,8 @@ static inline void hsm_set_cl_error(int *flags, int error) *flags |= (error << CLF_HSM_ERR_L); } -#define CR_MAXSIZE cfs_size_round(2*NAME_MAX + 1 + sizeof(struct changelog_rec)) +#define CR_MAXSIZE cfs_size_round(2*NAME_MAX + 1 + \ + sizeof(struct changelog_ext_rec)) struct changelog_rec { __u16 cr_namelen; From 18e042f0c9cb14afa5540dc366eeefe67295d0b9 Mon Sep 17 00:00:00 2001 From: Oleg Drokin Date: Thu, 23 Jan 2014 23:45:07 -0500 Subject: [PATCH 25/55] lustre: Correct KUC code max changelog msg size The kernel to userspace communication routines (KUC) allocate and limit the maximum cs_buf size to CR_MAXSIZE. However this fails to account for the fact that the buffer is assumed to begin with a struct kuc_hdr. To allocate and account for that space, we introduce a new define, KUC_CHANGELOG_MSG_MAXSIZE. Signed-off-by: Christopher J. Morrone Reviewed-on: http://review.whamcloud.com/7406 Intel-bug-id: https://jira.hpdd.intel.com/browse/LU-3587 Reviewed-by: Andreas Dilger Reviewed-by: jacques-Charles Lafoucriere Reviewed-by: Oleg Drokin Signed-off-by: Oleg Drokin Signed-off-by: Greg Kroah-Hartman --- .../staging/lustre/include/linux/libcfs/libcfs_kernelcomm.h | 2 ++ drivers/staging/lustre/lustre/mdc/mdc_request.c | 6 +++--- 2 files changed, 5 insertions(+), 3 deletions(-) diff --git a/drivers/staging/lustre/include/linux/libcfs/libcfs_kernelcomm.h b/drivers/staging/lustre/include/linux/libcfs/libcfs_kernelcomm.h index 596a15fc8996..037ae8a6d531 100644 --- a/drivers/staging/lustre/include/linux/libcfs/libcfs_kernelcomm.h +++ b/drivers/staging/lustre/include/linux/libcfs/libcfs_kernelcomm.h @@ -61,6 +61,8 @@ struct kuc_hdr { __u16 kuc_msglen; /* Including header */ } __attribute__((aligned(sizeof(__u64)))); +#define KUC_CHANGELOG_MSG_MAXSIZE (sizeof(struct kuc_hdr)+CR_MAXSIZE) + #define KUC_MAGIC 0x191C /*Lustre9etLinC */ #define KUC_FL_BLOCK 0x01 /* Wait for send */ diff --git a/drivers/staging/lustre/lustre/mdc/mdc_request.c b/drivers/staging/lustre/lustre/mdc/mdc_request.c index d1ad91c34ddc..83013927e131 100644 --- a/drivers/staging/lustre/lustre/mdc/mdc_request.c +++ b/drivers/staging/lustre/lustre/mdc/mdc_request.c @@ -1430,7 +1430,7 @@ static struct kuc_hdr *changelog_kuc_hdr(char *buf, int len, int flags) { struct kuc_hdr *lh = (struct kuc_hdr *)buf; - LASSERT(len <= CR_MAXSIZE); + LASSERT(len <= KUC_CHANGELOG_MSG_MAXSIZE); lh->kuc_magic = KUC_MAGIC; lh->kuc_transport = KUC_TRANSPORT_CHANGELOG; @@ -1503,7 +1503,7 @@ static int mdc_changelog_send_thread(void *csdata) CDEBUG(D_CHANGELOG, "changelog to fp=%p start "LPU64"\n", cs->cs_fp, cs->cs_startrec); - OBD_ALLOC(cs->cs_buf, CR_MAXSIZE); + OBD_ALLOC(cs->cs_buf, KUC_CHANGELOG_MSG_MAXSIZE); if (cs->cs_buf == NULL) GOTO(out, rc = -ENOMEM); @@ -1540,7 +1540,7 @@ out: if (ctxt) llog_ctxt_put(ctxt); if (cs->cs_buf) - OBD_FREE(cs->cs_buf, CR_MAXSIZE); + OBD_FREE(cs->cs_buf, KUC_CHANGELOG_MSG_MAXSIZE); OBD_FREE_PTR(cs); return rc; } From 1ea98e4c440eb497e1af1bce31cbba261b081a7b Mon Sep 17 00:00:00 2001 From: Oleg Drokin Date: Thu, 23 Jan 2014 23:45:08 -0500 Subject: [PATCH 26/55] lustre: add myself to list of people to CC on lustre patches Signed-off-by: Oleg Drokin Signed-off-by: Greg Kroah-Hartman --- drivers/staging/lustre/TODO | 5 +++-- 1 file changed, 3 insertions(+), 2 deletions(-) diff --git a/drivers/staging/lustre/TODO b/drivers/staging/lustre/TODO index 22742d6d62a8..0a2b6cb3775e 100644 --- a/drivers/staging/lustre/TODO +++ b/drivers/staging/lustre/TODO @@ -9,5 +9,6 @@ * Other minor misc cleanups... Please send any patches to Greg Kroah-Hartman , Andreas Dilger - and Peng Tao . CCing -hpdd-discuss would be great too. +, Oleg Drokin and +Peng Tao . CCing hpdd-discuss +would be great too. From b91619c284e53fec09d502f29c1ad7ee4766e664 Mon Sep 17 00:00:00 2001 From: David Daney Date: Mon, 3 Feb 2014 19:39:01 +0200 Subject: [PATCH 27/55] staging: octeon-usb: Probe via device tree populated platform device. Extract clocking parameters from the device tree, and remove now dead code and types. Signed-off-by: David Daney Tested-by: Aaro Koskinen Signed-off-by: Aaro Koskinen Signed-off-by: Greg Kroah-Hartman --- drivers/staging/octeon-usb/octeon-hcd.c | 351 +++++++++++------------- 1 file changed, 155 insertions(+), 196 deletions(-) diff --git a/drivers/staging/octeon-usb/octeon-hcd.c b/drivers/staging/octeon-usb/octeon-hcd.c index 47e0a91238a1..5a001d9b4252 100644 --- a/drivers/staging/octeon-usb/octeon-hcd.c +++ b/drivers/staging/octeon-usb/octeon-hcd.c @@ -275,13 +275,6 @@ enum cvmx_usb_pipe_flags { */ #define MAX_TRANSFER_PACKETS ((1<<10)-1) -enum { - USB_CLOCK_TYPE_REF_12, - USB_CLOCK_TYPE_REF_24, - USB_CLOCK_TYPE_REF_48, - USB_CLOCK_TYPE_CRYSTAL_12, -}; - /** * Logical transactions may take numerous low level * transactions, especially when splits are concerned. This @@ -471,19 +464,6 @@ struct octeon_hcd { /* Returns the IO address to push/pop stuff data from the FIFOs */ #define USB_FIFO_ADDRESS(channel, usb_index) (CVMX_USBCX_GOTGCTL(usb_index) + ((channel)+1)*0x1000) -static int octeon_usb_get_clock_type(void) -{ - switch (cvmx_sysinfo_get()->board_type) { - case CVMX_BOARD_TYPE_BBGW_REF: - case CVMX_BOARD_TYPE_LANAI2_A: - case CVMX_BOARD_TYPE_LANAI2_U: - case CVMX_BOARD_TYPE_LANAI2_G: - case CVMX_BOARD_TYPE_UBNT_E100: - return USB_CLOCK_TYPE_CRYSTAL_12; - } - return USB_CLOCK_TYPE_REF_48; -} - /** * Read a USB 32bit CSR. It performs the necessary address swizzle * for 32bit CSRs and logs the value in a readable format if @@ -582,37 +562,6 @@ static inline int __cvmx_usb_get_data_pid(struct cvmx_usb_pipe *pipe) return 0; /* Data0 */ } - -/** - * Return the number of USB ports supported by this Octeon - * chip. If the chip doesn't support USB, or is not supported - * by this API, a zero will be returned. Most Octeon chips - * support one usb port, but some support two ports. - * cvmx_usb_initialize() must be called on independent - * struct cvmx_usb_state. - * - * Returns: Number of port, zero if usb isn't supported - */ -static int cvmx_usb_get_num_ports(void) -{ - int arch_ports = 0; - - if (OCTEON_IS_MODEL(OCTEON_CN56XX)) - arch_ports = 1; - else if (OCTEON_IS_MODEL(OCTEON_CN52XX)) - arch_ports = 2; - else if (OCTEON_IS_MODEL(OCTEON_CN50XX)) - arch_ports = 1; - else if (OCTEON_IS_MODEL(OCTEON_CN31XX)) - arch_ports = 1; - else if (OCTEON_IS_MODEL(OCTEON_CN30XX)) - arch_ports = 1; - else - arch_ports = 0; - - return arch_ports; -} - /** * Initialize a USB port for use. This must be called before any * other access to the Octeon USB port is made. The port starts @@ -628,41 +577,16 @@ static int cvmx_usb_get_num_ports(void) * Returns: 0 or a negative error code. */ static int cvmx_usb_initialize(struct cvmx_usb_state *usb, - int usb_port_number) + int usb_port_number, + enum cvmx_usb_initialize_flags flags) { union cvmx_usbnx_clk_ctl usbn_clk_ctl; union cvmx_usbnx_usbp_ctl_status usbn_usbp_ctl_status; - enum cvmx_usb_initialize_flags flags = 0; int i; /* At first allow 0-1 for the usb port number */ if ((usb_port_number < 0) || (usb_port_number > 1)) return -EINVAL; - /* For all chips except 52XX there is only one port */ - if (!OCTEON_IS_MODEL(OCTEON_CN52XX) && (usb_port_number > 0)) - return -EINVAL; - /* Try to determine clock type automatically */ - if (octeon_usb_get_clock_type() == USB_CLOCK_TYPE_CRYSTAL_12) { - /* Only 12 MHZ crystals are supported */ - flags |= CVMX_USB_INITIALIZE_FLAGS_CLOCK_XO_XI; - } else { - flags |= CVMX_USB_INITIALIZE_FLAGS_CLOCK_XO_GND; - - switch (octeon_usb_get_clock_type()) { - case USB_CLOCK_TYPE_REF_12: - flags |= CVMX_USB_INITIALIZE_FLAGS_CLOCK_12MHZ; - break; - case USB_CLOCK_TYPE_REF_24: - flags |= CVMX_USB_INITIALIZE_FLAGS_CLOCK_24MHZ; - break; - case USB_CLOCK_TYPE_REF_48: - flags |= CVMX_USB_INITIALIZE_FLAGS_CLOCK_48MHZ; - break; - default: - return -EINVAL; - break; - } - } memset(usb, 0, sizeof(*usb)); usb->init_flags = flags; @@ -3431,7 +3355,6 @@ static int octeon_usb_hub_control(struct usb_hcd *hcd, u16 typeReq, u16 wValue, return 0; } - static const struct hc_driver octeon_hc_driver = { .description = "Octeon USB", .product_desc = "Octeon Host Controller", @@ -3448,15 +3371,74 @@ static const struct hc_driver octeon_hc_driver = { .hub_control = octeon_usb_hub_control, }; - -static int octeon_usb_driver_probe(struct device *dev) +static int octeon_usb_probe(struct platform_device *pdev) { int status; - int usb_num = to_platform_device(dev)->id; - int irq = platform_get_irq(to_platform_device(dev), 0); + int initialize_flags; + int usb_num; + struct resource *res_mem; + struct device_node *usbn_node; + int irq = platform_get_irq(pdev, 0); + struct device *dev = &pdev->dev; struct octeon_hcd *priv; struct usb_hcd *hcd; unsigned long flags; + u32 clock_rate = 48000000; + bool is_crystal_clock = false; + const char *clock_type; + int i; + + if (dev->of_node == NULL) { + dev_err(dev, "Error: empty of_node\n"); + return -ENXIO; + } + usbn_node = dev->of_node->parent; + + i = of_property_read_u32(usbn_node, + "refclk-frequency", &clock_rate); + if (i) { + dev_err(dev, "No USBN \"refclk-frequency\"\n"); + return -ENXIO; + } + switch (clock_rate) { + case 12000000: + initialize_flags = CVMX_USB_INITIALIZE_FLAGS_CLOCK_12MHZ; + break; + case 24000000: + initialize_flags = CVMX_USB_INITIALIZE_FLAGS_CLOCK_24MHZ; + break; + case 48000000: + initialize_flags = CVMX_USB_INITIALIZE_FLAGS_CLOCK_48MHZ; + break; + default: + dev_err(dev, "Illebal USBN \"refclk-frequency\" %u\n", clock_rate); + return -ENXIO; + + } + + i = of_property_read_string(usbn_node, + "refclk-type", &clock_type); + + if (!i && strcmp("crystal", clock_type) == 0) + is_crystal_clock = true; + + if (is_crystal_clock) + initialize_flags |= CVMX_USB_INITIALIZE_FLAGS_CLOCK_XO_XI; + else + initialize_flags |= CVMX_USB_INITIALIZE_FLAGS_CLOCK_XO_GND; + + res_mem = platform_get_resource(pdev, IORESOURCE_MEM, 0); + if (res_mem == NULL) { + dev_err(dev, "found no memory resource\n"); + return -ENXIO; + } + usb_num = (res_mem->start >> 44) & 1; + + if (irq < 0) { + /* Defective device tree, but we know how to fix it. */ + irq_hw_number_t hwirq = usb_num ? (1 << 6) + 17 : 56; + irq = irq_create_mapping(NULL, hwirq); + } /* * Set the DMA mask to 64bits so we get buffers already translated for @@ -3465,90 +3447,6 @@ static int octeon_usb_driver_probe(struct device *dev) dev->coherent_dma_mask = ~0; dev->dma_mask = &dev->coherent_dma_mask; - hcd = usb_create_hcd(&octeon_hc_driver, dev, dev_name(dev)); - if (!hcd) { - dev_dbg(dev, "Failed to allocate memory for HCD\n"); - return -1; - } - hcd->uses_new_polling = 1; - priv = (struct octeon_hcd *)hcd->hcd_priv; - - spin_lock_init(&priv->lock); - - tasklet_init(&priv->dequeue_tasklet, octeon_usb_urb_dequeue_work, (unsigned long)priv); - INIT_LIST_HEAD(&priv->dequeue_list); - - status = cvmx_usb_initialize(&priv->usb, usb_num); - if (status) { - dev_dbg(dev, "USB initialization failed with %d\n", status); - kfree(hcd); - return -1; - } - - /* This delay is needed for CN3010, but I don't know why... */ - mdelay(10); - - spin_lock_irqsave(&priv->lock, flags); - cvmx_usb_poll(&priv->usb); - spin_unlock_irqrestore(&priv->lock, flags); - - status = usb_add_hcd(hcd, irq, IRQF_SHARED); - if (status) { - dev_dbg(dev, "USB add HCD failed with %d\n", status); - kfree(hcd); - return -1; - } - device_wakeup_enable(hcd->self.controller); - - dev_dbg(dev, "Registered HCD for port %d on irq %d\n", usb_num, irq); - - return 0; -} - -static int octeon_usb_driver_remove(struct device *dev) -{ - int status; - struct usb_hcd *hcd = dev_get_drvdata(dev); - struct octeon_hcd *priv = hcd_to_octeon(hcd); - unsigned long flags; - - usb_remove_hcd(hcd); - tasklet_kill(&priv->dequeue_tasklet); - spin_lock_irqsave(&priv->lock, flags); - status = cvmx_usb_shutdown(&priv->usb); - spin_unlock_irqrestore(&priv->lock, flags); - if (status) - dev_dbg(dev, "USB shutdown failed with %d\n", status); - - kfree(hcd); - - return 0; -} - -static struct device_driver octeon_usb_driver = { - .name = "OcteonUSB", - .bus = &platform_bus_type, - .probe = octeon_usb_driver_probe, - .remove = octeon_usb_driver_remove, -}; - - -#define MAX_USB_PORTS 10 -static struct platform_device *pdev_glob[MAX_USB_PORTS]; -static int octeon_usb_registered; -static int __init octeon_usb_module_init(void) -{ - int num_devices = cvmx_usb_get_num_ports(); - int device; - - if (usb_disabled() || num_devices == 0) - return -ENODEV; - - if (driver_register(&octeon_usb_driver)) - return -ENOMEM; - - octeon_usb_registered = 1; - /* * Only cn52XX and cn56XX have DWC_OTG USB hardware and the * IOB priority registers. Under heavy network load USB @@ -3569,41 +3467,102 @@ static int __init octeon_usb_module_init(void) cvmx_write_csr(CVMX_IOB_N2C_L2C_PRI_CNT, pri_cnt.u64); } - for (device = 0; device < num_devices; device++) { - struct resource irq_resource; - struct platform_device *pdev; - memset(&irq_resource, 0, sizeof(irq_resource)); - irq_resource.start = (device == 0) ? OCTEON_IRQ_USB0 : OCTEON_IRQ_USB1; - irq_resource.end = irq_resource.start; - irq_resource.flags = IORESOURCE_IRQ; - pdev = platform_device_register_simple((char *)octeon_usb_driver. name, device, &irq_resource, 1); - if (IS_ERR(pdev)) { - driver_unregister(&octeon_usb_driver); - octeon_usb_registered = 0; - return PTR_ERR(pdev); - } - if (device < MAX_USB_PORTS) - pdev_glob[device] = pdev; - + hcd = usb_create_hcd(&octeon_hc_driver, dev, dev_name(dev)); + if (!hcd) { + dev_dbg(dev, "Failed to allocate memory for HCD\n"); + return -1; } + hcd->uses_new_polling = 1; + priv = (struct octeon_hcd *)hcd->hcd_priv; + + spin_lock_init(&priv->lock); + + tasklet_init(&priv->dequeue_tasklet, octeon_usb_urb_dequeue_work, (unsigned long)priv); + INIT_LIST_HEAD(&priv->dequeue_list); + + status = cvmx_usb_initialize(&priv->usb, usb_num, initialize_flags); + if (status) { + dev_dbg(dev, "USB initialization failed with %d\n", status); + kfree(hcd); + return -1; + } + + /* This delay is needed for CN3010, but I don't know why... */ + mdelay(10); + + spin_lock_irqsave(&priv->lock, flags); + cvmx_usb_poll(&priv->usb); + spin_unlock_irqrestore(&priv->lock, flags); + + status = usb_add_hcd(hcd, irq, 0); + if (status) { + dev_dbg(dev, "USB add HCD failed with %d\n", status); + kfree(hcd); + return -1; + } + device_wakeup_enable(hcd->self.controller); + + dev_info(dev, "Registered HCD for port %d on irq %d\n", usb_num, irq); + return 0; } -static void __exit octeon_usb_module_cleanup(void) +static int octeon_usb_remove(struct platform_device *pdev) { - int i; + int status; + struct device *dev = &pdev->dev; + struct usb_hcd *hcd = dev_get_drvdata(dev); + struct octeon_hcd *priv = hcd_to_octeon(hcd); + unsigned long flags; - for (i = 0; i < MAX_USB_PORTS; i++) - if (pdev_glob[i]) { - platform_device_unregister(pdev_glob[i]); - pdev_glob[i] = NULL; - } - if (octeon_usb_registered) - driver_unregister(&octeon_usb_driver); + usb_remove_hcd(hcd); + tasklet_kill(&priv->dequeue_tasklet); + spin_lock_irqsave(&priv->lock, flags); + status = cvmx_usb_shutdown(&priv->usb); + spin_unlock_irqrestore(&priv->lock, flags); + if (status) + dev_dbg(dev, "USB shutdown failed with %d\n", status); + + kfree(hcd); + + return 0; } +static struct of_device_id octeon_usb_match[] = { + { + .compatible = "cavium,octeon-5750-usbc", + }, + {}, +}; + +static struct platform_driver octeon_usb_driver = { + .driver = { + .name = "OcteonUSB", + .owner = THIS_MODULE, + .of_match_table = octeon_usb_match, + }, + .probe = octeon_usb_probe, + .remove = octeon_usb_remove, +}; + +static int __init octeon_usb_driver_init(void) +{ + if (usb_disabled()) + return 0; + + return platform_driver_register(&octeon_usb_driver); +} +module_init(octeon_usb_driver_init); + +static void __exit octeon_usb_driver_exit(void) +{ + if (usb_disabled()) + return; + + platform_driver_unregister(&octeon_usb_driver); +} +module_exit(octeon_usb_driver_exit); + MODULE_LICENSE("GPL"); -MODULE_AUTHOR("Cavium Networks "); -MODULE_DESCRIPTION("Cavium Networks Octeon USB Host driver."); -module_init(octeon_usb_module_init); -module_exit(octeon_usb_module_cleanup); +MODULE_AUTHOR("Cavium, Inc. "); +MODULE_DESCRIPTION("Cavium Inc. OCTEON USB Host driver."); From fdf2f40c6cb9649e3990bc11fe0b5c155adf555a Mon Sep 17 00:00:00 2001 From: Surendra Patil Date: Mon, 3 Feb 2014 21:53:53 -0800 Subject: [PATCH 28/55] staging: rtl8821ae: Fixed the size of array to macro as discussed by Linus MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Linus Torvalds writes: It causes an interesting warning for me: drivers/staging/rtl8821ae/rtl8821ae/dm.c: In function ‘rtl8821ae_dm_clear_txpower_tracking_state’: drivers/staging/rtl8821ae/rtl8821ae/dm.c:487:31: warning: iteration 2u invokes undefined behavior [-Waggressive-loop-optimizations] rtldm->bb_swing_idx_ofdm[p] = rtldm->default_ofdm_index; ^ drivers/staging/rtl8821ae/rtl8821ae/dm.c:485:2: note: containing loop for (p = RF90_PATH_A; p < MAX_RF_PATH; ++p) { ^ and gcc is entirely correct: that loop iterates from 0 to 3, and does this: rtldm->bb_swing_idx_ofdm[p] = rtldm->default_ofdm_index; but the bb_swing_idx_ofdm[] array only has two members. So the last two iterations will overwrite bb_swing_idx_ofdm_current and the first entry in bb_swing_idx_ofdm_base[]. Now, the bug does seem to be benign: bb_swing_idx_ofdm_current isn't actually ever *used* as far as I can tell, and the first entry of bb_swing_idx_ofdm_base[] will have been written with that same "rtldm->default_ofdm_index" value. But gcc is absolutely correct, and that driver needs fixing. I've pulled it and will let it be because it doesn't seem to be an issue in practice, but please fix it. The obvious fix would seem to change the size of "2" to be "MAX_RF_PATH", but I'll abstain from doing those kinds of changes in the merge when it doesn't seem to affect the build or functionality). Reported-By: Linus Torvalds Signed-off-by: Surendra Patil Signed-off-by: Greg Kroah-Hartman --- drivers/staging/rtl8821ae/wifi.h | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/staging/rtl8821ae/wifi.h b/drivers/staging/rtl8821ae/wifi.h index cfe88a1efd55..76bef93ad70a 100644 --- a/drivers/staging/rtl8821ae/wifi.h +++ b/drivers/staging/rtl8821ae/wifi.h @@ -1414,7 +1414,7 @@ struct rtl_dm { /*88e tx power tracking*/ - u8 bb_swing_idx_ofdm[2]; + u8 bb_swing_idx_ofdm[MAX_RF_PATH]; u8 bb_swing_idx_ofdm_current; u8 bb_swing_idx_ofdm_base[MAX_RF_PATH]; bool bb_swing_flag_Ofdm; From 8360fb0d9c21283e6fc12c43ce9ad81d1f9cffef Mon Sep 17 00:00:00 2001 From: Shuah Khan Date: Wed, 22 Jan 2014 09:38:14 -0700 Subject: [PATCH 29/55] staging/usbip: Fix vhci_hcd attach failure error message to be informative When attach fails due to unsupported and/or invalid bus speed, the message vhci_hcd prints out doesn't include any useful information as to what caused the failure. Change the message to be informative and use usb_speed_string() to get the right speed string from usb common. Signed-off-by: Shuah Khan Signed-off-by: Greg Kroah-Hartman --- drivers/staging/usbip/vhci_sysfs.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) diff --git a/drivers/staging/usbip/vhci_sysfs.c b/drivers/staging/usbip/vhci_sysfs.c index 9b51586d11d9..0141bc34d5cc 100644 --- a/drivers/staging/usbip/vhci_sysfs.c +++ b/drivers/staging/usbip/vhci_sysfs.c @@ -149,7 +149,8 @@ static int valid_args(__u32 rhport, enum usb_device_speed speed) case USB_SPEED_WIRELESS: break; default: - pr_err("speed %d\n", speed); + pr_err("Failed attach request for unsupported USB speed: %s\n", + usb_speed_string(speed)); return -EINVAL; } From 0010b79d56cb1d7717bf146ee59df5a625b0330b Mon Sep 17 00:00:00 2001 From: Salym Senyonga Date: Sat, 25 Jan 2014 12:54:39 +0300 Subject: [PATCH 30/55] Staging: ozwpan: Fix null dereference If net_dev is NULL memcpy() will Oops. Signed-off-by: Salym Senyonga Signed-off-by: Greg Kroah-Hartman --- drivers/staging/ozwpan/ozproto.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) diff --git a/drivers/staging/ozwpan/ozproto.c b/drivers/staging/ozwpan/ozproto.c index cb060364dfe7..5d965cf06d59 100644 --- a/drivers/staging/ozwpan/ozproto.c +++ b/drivers/staging/ozwpan/ozproto.c @@ -668,8 +668,8 @@ void oz_binding_add(const char *net_dev) if (binding) { binding->ptype.type = __constant_htons(OZ_ETHERTYPE); binding->ptype.func = oz_pkt_recv; - memcpy(binding->name, net_dev, OZ_MAX_BINDING_LEN); if (net_dev && *net_dev) { + memcpy(binding->name, net_dev, OZ_MAX_BINDING_LEN); oz_dbg(ON, "Adding binding: %s\n", net_dev); binding->ptype.dev = dev_get_by_name(&init_net, net_dev); @@ -680,6 +680,7 @@ void oz_binding_add(const char *net_dev) } } else { oz_dbg(ON, "Binding to all netcards\n"); + memset(binding->name, 0, OZ_MAX_BINDING_LEN); binding->ptype.dev = NULL; } if (binding) { From ead00ddca0578aa9984e7e712024aead113e8253 Mon Sep 17 00:00:00 2001 From: Greg Kroah-Hartman Date: Fri, 7 Feb 2014 09:16:38 -0800 Subject: [PATCH 31/55] Revert "Staging: dgrp: Refactor the function dgrp_receive() in drrp_net_ops.c" This reverts commit b73db54750482cf3910046c82a84ce8c1684dfbe. Reported-by: Geert Uytterhoeven Reported-by: Chen Gang Cc: Rashika Kheria Cc: James Hogan Signed-off-by: Greg Kroah-Hartman --- drivers/staging/dgrp/dgrp_net_ops.c | 330 +++++++++++++--------------- 1 file changed, 155 insertions(+), 175 deletions(-) diff --git a/drivers/staging/dgrp/dgrp_net_ops.c b/drivers/staging/dgrp/dgrp_net_ops.c index 1f61b89eca44..33ac7fb88cbd 100644 --- a/drivers/staging/dgrp/dgrp_net_ops.c +++ b/drivers/staging/dgrp/dgrp_net_ops.c @@ -2232,177 +2232,6 @@ done: return rtn; } -/* - * Common Packet Handling code - */ - -static void handle_data_in_packet(struct nd_struct *nd, struct ch_struct *ch, - long dlen, long plen, int n1, u8 *dbuf) -{ - char *error; - long n; - long remain; - u8 *buf; - u8 *b; - - remain = nd->nd_remain; - nd->nd_tx_work = 1; - - /* - * Otherwise data should appear only when we are - * in the CS_READY state. - */ - - if (ch->ch_state < CS_READY) { - error = "Data received before RWIN established"; - nd->nd_remain = 0; - nd->nd_state = NS_SEND_ERROR; - nd->nd_error = error; - } - - /* - * Assure that the data received is within the - * allowable window. - */ - - n = (ch->ch_s_rwin - ch->ch_s_rin) & 0xffff; - - if (dlen > n) { - error = "Receive data overrun"; - nd->nd_remain = 0; - nd->nd_state = NS_SEND_ERROR; - nd->nd_error = error; - } - - /* - * If we received 3 or less characters, - * assume it is a human typing, and set RTIME - * to 10 milliseconds. - * - * If we receive 10 or more characters, - * assume its not a human typing, and set RTIME - * to 100 milliseconds. - */ - - if (ch->ch_edelay != DGRP_RTIME) { - if (ch->ch_rtime != ch->ch_edelay) { - ch->ch_rtime = ch->ch_edelay; - ch->ch_flag |= CH_PARAM; - } - } else if (dlen <= 3) { - if (ch->ch_rtime != 10) { - ch->ch_rtime = 10; - ch->ch_flag |= CH_PARAM; - } - } else { - if (ch->ch_rtime != DGRP_RTIME) { - ch->ch_rtime = DGRP_RTIME; - ch->ch_flag |= CH_PARAM; - } - } - - /* - * If a portion of the packet is outside the - * buffer, shorten the effective length of the - * data packet to be the amount of data received. - */ - - if (remain < plen) - dlen -= plen - remain; - - /* - * Detect if receive flush is now complete. - */ - - if ((ch->ch_flag & CH_RX_FLUSH) != 0 && - ((ch->ch_flush_seq - nd->nd_seq_out) & SEQ_MASK) >= - ((nd->nd_seq_in - nd->nd_seq_out) & SEQ_MASK)) { - ch->ch_flag &= ~CH_RX_FLUSH; - } - - /* - * If we are ready to receive, move the data into - * the receive buffer. - */ - - ch->ch_s_rin = (ch->ch_s_rin + dlen) & 0xffff; - - if (ch->ch_state == CS_READY && - (ch->ch_tun.un_open_count != 0) && - (ch->ch_tun.un_flag & UN_CLOSING) == 0 && - (ch->ch_cflag & CF_CREAD) != 0 && - (ch->ch_flag & (CH_BAUD0 | CH_RX_FLUSH)) == 0 && - (ch->ch_send & RR_RX_FLUSH) == 0) { - - if (ch->ch_rin + dlen >= RBUF_MAX) { - n = RBUF_MAX - ch->ch_rin; - - memcpy(ch->ch_rbuf + ch->ch_rin, dbuf, n); - - ch->ch_rin = 0; - dbuf += n; - dlen -= n; - } - - memcpy(ch->ch_rbuf + ch->ch_rin, dbuf, dlen); - - ch->ch_rin += dlen; - - - /* - * If we are not in fastcook mode, or - * if there is a fastcook thread - * waiting for data, send the data to - * the line discipline. - */ - - if ((ch->ch_flag & CH_FAST_READ) == 0 || - ch->ch_inwait != 0) { - dgrp_input(ch); - } - - /* - * If there is a read thread waiting - * in select, and we are in fastcook - * mode, wake him up. - */ - - if (waitqueue_active(&ch->ch_tun.un_tty->read_wait) && - (ch->ch_flag & CH_FAST_READ) != 0) - wake_up_interruptible(&ch->ch_tun.un_tty->read_wait); - - /* - * Wake any thread waiting in the - * fastcook loop. - */ - - if ((ch->ch_flag & CH_INPUT) != 0) { - ch->ch_flag &= ~CH_INPUT; - wake_up_interruptible(&ch->ch_flag_wait); - } - } - - /* - * Fabricate and insert a data packet header to - * preced the remaining data when it comes in. - */ - - if (remain < plen) { - dlen = plen - remain; - b = buf; - - b[0] = 0x90 + n1; - put_unaligned_be16(dlen, b + 1); - - remain = 3; - if (remain > 0 && b != buf) - memcpy(buf, b, remain); - - nd->nd_remain = remain; - return; - } -} - /** * dgrp_receive() -- decode data packets received from the remote PortServer. * @nd: pointer to a node structure @@ -2477,8 +2306,7 @@ static void dgrp_receive(struct nd_struct *nd) plen = dlen + 1; dbuf = b + 1; - handle_data_in_packet(nd, ch, dlen, plen, n1, dbuf); - break; + goto data; /* * Process 2-byte header data packet. @@ -2492,8 +2320,7 @@ static void dgrp_receive(struct nd_struct *nd) plen = dlen + 2; dbuf = b + 2; - handle_data_in_packet(nd, ch, dlen, plen, n1, dbuf); - break; + goto data; /* * Process 3-byte header data packet. @@ -2508,6 +2335,159 @@ static void dgrp_receive(struct nd_struct *nd) dbuf = b + 3; + /* + * Common packet handling code. + */ + +data: + nd->nd_tx_work = 1; + + /* + * Otherwise data should appear only when we are + * in the CS_READY state. + */ + + if (ch->ch_state < CS_READY) { + error = "Data received before RWIN established"; + goto prot_error; + } + + /* + * Assure that the data received is within the + * allowable window. + */ + + n = (ch->ch_s_rwin - ch->ch_s_rin) & 0xffff; + + if (dlen > n) { + error = "Receive data overrun"; + goto prot_error; + } + + /* + * If we received 3 or less characters, + * assume it is a human typing, and set RTIME + * to 10 milliseconds. + * + * If we receive 10 or more characters, + * assume its not a human typing, and set RTIME + * to 100 milliseconds. + */ + + if (ch->ch_edelay != DGRP_RTIME) { + if (ch->ch_rtime != ch->ch_edelay) { + ch->ch_rtime = ch->ch_edelay; + ch->ch_flag |= CH_PARAM; + } + } else if (dlen <= 3) { + if (ch->ch_rtime != 10) { + ch->ch_rtime = 10; + ch->ch_flag |= CH_PARAM; + } + } else { + if (ch->ch_rtime != DGRP_RTIME) { + ch->ch_rtime = DGRP_RTIME; + ch->ch_flag |= CH_PARAM; + } + } + + /* + * If a portion of the packet is outside the + * buffer, shorten the effective length of the + * data packet to be the amount of data received. + */ + + if (remain < plen) + dlen -= plen - remain; + + /* + * Detect if receive flush is now complete. + */ + + if ((ch->ch_flag & CH_RX_FLUSH) != 0 && + ((ch->ch_flush_seq - nd->nd_seq_out) & SEQ_MASK) >= + ((nd->nd_seq_in - nd->nd_seq_out) & SEQ_MASK)) { + ch->ch_flag &= ~CH_RX_FLUSH; + } + + /* + * If we are ready to receive, move the data into + * the receive buffer. + */ + + ch->ch_s_rin = (ch->ch_s_rin + dlen) & 0xffff; + + if (ch->ch_state == CS_READY && + (ch->ch_tun.un_open_count != 0) && + (ch->ch_tun.un_flag & UN_CLOSING) == 0 && + (ch->ch_cflag & CF_CREAD) != 0 && + (ch->ch_flag & (CH_BAUD0 | CH_RX_FLUSH)) == 0 && + (ch->ch_send & RR_RX_FLUSH) == 0) { + + if (ch->ch_rin + dlen >= RBUF_MAX) { + n = RBUF_MAX - ch->ch_rin; + + memcpy(ch->ch_rbuf + ch->ch_rin, dbuf, n); + + ch->ch_rin = 0; + dbuf += n; + dlen -= n; + } + + memcpy(ch->ch_rbuf + ch->ch_rin, dbuf, dlen); + + ch->ch_rin += dlen; + + + /* + * If we are not in fastcook mode, or + * if there is a fastcook thread + * waiting for data, send the data to + * the line discipline. + */ + + if ((ch->ch_flag & CH_FAST_READ) == 0 || + ch->ch_inwait != 0) { + dgrp_input(ch); + } + + /* + * If there is a read thread waiting + * in select, and we are in fastcook + * mode, wake him up. + */ + + if (waitqueue_active(&ch->ch_tun.un_tty->read_wait) && + (ch->ch_flag & CH_FAST_READ) != 0) + wake_up_interruptible(&ch->ch_tun.un_tty->read_wait); + + /* + * Wake any thread waiting in the + * fastcook loop. + */ + + if ((ch->ch_flag & CH_INPUT) != 0) { + ch->ch_flag &= ~CH_INPUT; + + wake_up_interruptible(&ch->ch_flag_wait); + } + } + + /* + * Fabricate and insert a data packet header to + * preced the remaining data when it comes in. + */ + + if (remain < plen) { + dlen = plen - remain; + b = buf; + + b[0] = 0x90 + n1; + put_unaligned_be16(dlen, b + 1); + + remain = 3; + goto done; + } break; /* From d3a874e899b073496d1fe89b6a2d1aa50870874d Mon Sep 17 00:00:00 2001 From: Alexey Khoroshilov Date: Thu, 6 Feb 2014 01:47:13 +0100 Subject: [PATCH 32/55] staging: gdm72xx: fix leaks at failure path in gdm_usb_probe() Error handling code in gdm_usb_probe() misses to deallocate tx_ and rx_structs and to do usb_put_dev(). Found by Linux Driver Verification project (linuxtesting.org). Signed-off-by: Alexey Khoroshilov Signed-off-by: Greg Kroah-Hartman --- drivers/staging/gdm72xx/gdm_usb.c | 3 +++ 1 file changed, 3 insertions(+) diff --git a/drivers/staging/gdm72xx/gdm_usb.c b/drivers/staging/gdm72xx/gdm_usb.c index f8788bf0a7d3..cdeffe75496b 100644 --- a/drivers/staging/gdm72xx/gdm_usb.c +++ b/drivers/staging/gdm72xx/gdm_usb.c @@ -635,11 +635,14 @@ static int gdm_usb_probe(struct usb_interface *intf, #endif /* CONFIG_WIMAX_GDM72XX_USB_PM */ ret = register_wimax_device(phy_dev, &intf->dev); + if (ret) + release_usb(udev); out: if (ret) { kfree(phy_dev); kfree(udev); + usb_put_dev(usbdev); } else { usb_set_intfdata(intf, phy_dev); } From 7a081ea20e043f243b6fb9d50448cbe757fbb860 Mon Sep 17 00:00:00 2001 From: Dan Carpenter Date: Thu, 6 Feb 2014 23:42:42 +0300 Subject: [PATCH 33/55] staging: r8188eu: memory corruption handling long ssids We should cap the SSID length at NDIS_802_11_LENGTH_SSID (32) characters to avoid memory corruption. If the SSID is too long then I have opted to ignore it instead of truncating it. We don't need to clear bssid->Ssid.Ssid[0] because this struct is allocated with rtw_zmalloc() Signed-off-by: Dan Carpenter Acked-by: Larry Finger Signed-off-by: Greg Kroah-Hartman --- .../staging/rtl8188eu/core/rtw_wlan_util.c | 22 +++++++------------ 1 file changed, 8 insertions(+), 14 deletions(-) diff --git a/drivers/staging/rtl8188eu/core/rtw_wlan_util.c b/drivers/staging/rtl8188eu/core/rtw_wlan_util.c index 153ec61493ab..96df62f95b6b 100644 --- a/drivers/staging/rtl8188eu/core/rtw_wlan_util.c +++ b/drivers/staging/rtl8188eu/core/rtw_wlan_util.c @@ -912,12 +912,12 @@ int rtw_check_bcn_info(struct adapter *Adapter, u8 *pframe, u32 packet_len) unsigned char *pbuf; u32 wpa_ielen = 0; u8 *pbssid = GetAddr3Ptr(pframe); - u32 hidden_ssid = 0; struct HT_info_element *pht_info = NULL; struct rtw_ieee80211_ht_cap *pht_cap = NULL; u32 bcn_channel; unsigned short ht_cap_info; unsigned char ht_info_infos_0; + int ssid_len; if (is_client_associated_to_ap(Adapter) == false) return true; @@ -999,21 +999,15 @@ int rtw_check_bcn_info(struct adapter *Adapter, u8 *pframe, u32 packet_len) } /* checking SSID */ + ssid_len = 0; p = rtw_get_ie(bssid->IEs + _FIXED_IE_LENGTH_, _SSID_IE_, &len, bssid->IELength - _FIXED_IE_LENGTH_); - if (p == NULL) { - DBG_88E("%s marc: cannot find SSID for survey event\n", __func__); - hidden_ssid = true; - } else { - hidden_ssid = false; - } - - if ((NULL != p) && (false == hidden_ssid && (*(p + 1)))) { - memcpy(bssid->Ssid.Ssid, (p + 2), *(p + 1)); - bssid->Ssid.SsidLength = *(p + 1); - } else { - bssid->Ssid.SsidLength = 0; - bssid->Ssid.Ssid[0] = '\0'; + if (p) { + ssid_len = *(p + 1); + if (ssid_len > NDIS_802_11_LENGTH_SSID) + ssid_len = 0; } + memcpy(bssid->Ssid.Ssid, (p + 2), ssid_len); + bssid->Ssid.SsidLength = ssid_len; RT_TRACE(_module_rtl871x_mlme_c_, _drv_info_, ("%s bssid.Ssid.Ssid:%s bssid.Ssid.SsidLength:%d " "cur_network->network.Ssid.Ssid:%s len:%d\n", __func__, bssid->Ssid.Ssid, From 1e85c1ea1ff2a60659e790ef8ec76c7339445841 Mon Sep 17 00:00:00 2001 From: H Hartley Sweeten Date: Wed, 5 Feb 2014 14:59:53 -0700 Subject: [PATCH 34/55] staging: comedi: adv_pci1710: fix analog output readback value The last value written to a analog output channel is cached in the private data of this driver for readback. Currently, the wrong value is cached in the (*insn_write) functions. The current code stores the data[n] value for readback afer the loop has written all the values. At this time 'n' points past the end of the data array. Fix the functions by using a local variable to hold the data being written to the analog output channel. This variable is then used after the loop is complete to store the readback value. The current value is retrieved before the loop in case no values are actually written.. Signed-off-by: H Hartley Sweeten Reviewed-by: Ian Abbott Cc: stable Signed-off-by: Greg Kroah-Hartman --- drivers/staging/comedi/drivers/adv_pci1710.c | 17 ++++++++++++----- 1 file changed, 12 insertions(+), 5 deletions(-) diff --git a/drivers/staging/comedi/drivers/adv_pci1710.c b/drivers/staging/comedi/drivers/adv_pci1710.c index 593676cf706a..d9ad2c0fdda2 100644 --- a/drivers/staging/comedi/drivers/adv_pci1710.c +++ b/drivers/staging/comedi/drivers/adv_pci1710.c @@ -494,6 +494,7 @@ static int pci171x_insn_write_ao(struct comedi_device *dev, struct comedi_insn *insn, unsigned int *data) { struct pci1710_private *devpriv = dev->private; + unsigned int val; int n, chan, range, ofs; chan = CR_CHAN(insn->chanspec); @@ -509,11 +510,14 @@ static int pci171x_insn_write_ao(struct comedi_device *dev, outw(devpriv->da_ranges, dev->iobase + PCI171x_DAREF); ofs = PCI171x_DA1; } + val = devpriv->ao_data[chan]; - for (n = 0; n < insn->n; n++) - outw(data[n], dev->iobase + ofs); + for (n = 0; n < insn->n; n++) { + val = data[n]; + outw(val, dev->iobase + ofs); + } - devpriv->ao_data[chan] = data[n]; + devpriv->ao_data[chan] = val; return n; @@ -679,6 +683,7 @@ static int pci1720_insn_write_ao(struct comedi_device *dev, struct comedi_insn *insn, unsigned int *data) { struct pci1710_private *devpriv = dev->private; + unsigned int val; int n, rangereg, chan; chan = CR_CHAN(insn->chanspec); @@ -688,13 +693,15 @@ static int pci1720_insn_write_ao(struct comedi_device *dev, outb(rangereg, dev->iobase + PCI1720_RANGE); devpriv->da_ranges = rangereg; } + val = devpriv->ao_data[chan]; for (n = 0; n < insn->n; n++) { - outw(data[n], dev->iobase + PCI1720_DA0 + (chan << 1)); + val = data[n]; + outw(val, dev->iobase + PCI1720_DA0 + (chan << 1)); outb(0, dev->iobase + PCI1720_SYNCOUT); /* update outputs */ } - devpriv->ao_data[chan] = data[n]; + devpriv->ao_data[chan] = val; return n; } From ac5b705b22642208764aa784ccc47f093d0212b5 Mon Sep 17 00:00:00 2001 From: Prakash Kamliya Date: Tue, 4 Feb 2014 16:08:35 -0800 Subject: [PATCH 35/55] staging: android: sync: Signal pt before sync_timeline object gets destroyed There is a race condition Assume we have *one* sync_fence object, with *one* sync_pt which belongs to *one* sync_timeline, given this condition, sync_timeline->kref will have two counts, one for sync_timeline (implicit) and another for sync_pt. Assume following is the situation on CPU Theead-1 : (Thread which calls sync_timeline_destroy()) -> (some function calls) -> sync_timeline_destory() -> sync_timeline_signal() (CPU is inside this function after putting reference to sync_timeline) At this time Thread-2 comes and does following Thread-2 : (fclose on fence fd) > sync_fence_release() -> because of fclose() on fence object -> sync_fence_free() -> sync_pt_free() -> kref_put(&pt->parent->kref, sync_timeline_free); -> sync_timeline_free() (CPU is inside this because this time kref will be zero after _put) Thread-2 will free sync_timeline object before Thread-1 has finished its work inside sync_timeline_signal. With this change we signals all sync_pt before putting reference to sync_timeline object. Cc: Colin Cross Cc: Android Kernel Team Signed-off-by: Prakash Kamliya [jstultz: minor commit subject tweak] Signed-off-by: John Stultz Signed-off-by: Greg Kroah-Hartman --- drivers/staging/android/sync.c | 8 ++++---- 1 file changed, 4 insertions(+), 4 deletions(-) diff --git a/drivers/staging/android/sync.c b/drivers/staging/android/sync.c index b7fcaab0acea..3d05f662110b 100644 --- a/drivers/staging/android/sync.c +++ b/drivers/staging/android/sync.c @@ -92,14 +92,14 @@ static void sync_timeline_free(struct kref *kref) void sync_timeline_destroy(struct sync_timeline *obj) { obj->destroyed = true; + smp_wmb(); /* - * If this is not the last reference, signal any children - * that their parent is going away. + * signal any children that their parent is going away. */ + sync_timeline_signal(obj); - if (!kref_put(&obj->kref, sync_timeline_free)) - sync_timeline_signal(obj); + kref_put(&obj->kref, sync_timeline_free); } EXPORT_SYMBOL(sync_timeline_destroy); From 8b9e418c013e8b671fc10108ab14243f0657bffd Mon Sep 17 00:00:00 2001 From: =?UTF-8?q?C=C3=A9dric=20Dufour=20-=20Idiap=20Research=20Institute?= Date: Fri, 24 Jan 2014 20:57:05 +0100 Subject: [PATCH 36/55] staging: lustre: fix quotactl permission denied (LU-4530) MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit The changes introduced in commit 4b1a25f06b30b203 ("fix build when CONFIG_UIDGID_STRICT_TYPE_CHECKS is on") got the UID check the wrong way around, leading to "Permission denied" when a regular user attempts to retrieve his quota (lfs quota -u ...) but allowing him to retrieve other users quota. Full details at: https://jira.hpdd.intel.com/browse/LU-4530 Cc: Peng Tao Cc: # 3.12.x Cc: # 3.13.x Signed-off-by: Cédric Dufour Signed-off-by: Greg Kroah-Hartman --- drivers/staging/lustre/lustre/llite/dir.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/staging/lustre/lustre/llite/dir.c b/drivers/staging/lustre/lustre/llite/dir.c index 22d0acc95bc5..52b7731bcc38 100644 --- a/drivers/staging/lustre/lustre/llite/dir.c +++ b/drivers/staging/lustre/lustre/llite/dir.c @@ -1086,7 +1086,7 @@ static int quotactl_ioctl(struct ll_sb_info *sbi, struct if_quotactl *qctl) break; case Q_GETQUOTA: if (((type == USRQUOTA && - uid_eq(current_euid(), make_kuid(&init_user_ns, id))) || + !uid_eq(current_euid(), make_kuid(&init_user_ns, id))) || (type == GRPQUOTA && !in_egroup_p(make_kgid(&init_user_ns, id)))) && (!cfs_capable(CFS_CAP_SYS_ADMIN) || From 630127f36784e59e995c206c37825a36a34d346c Mon Sep 17 00:00:00 2001 From: Dan Carpenter Date: Mon, 20 Jan 2014 13:30:01 +0300 Subject: [PATCH 37/55] staging: android: ion: dummy: fix an error code We should be returning -ENOMEM here instead of zero. Signed-off-by: Dan Carpenter Signed-off-by: Greg Kroah-Hartman --- drivers/staging/android/ion/ion_dummy_driver.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/staging/android/ion/ion_dummy_driver.c b/drivers/staging/android/ion/ion_dummy_driver.c index df8228b08856..01cdc8aee898 100644 --- a/drivers/staging/android/ion/ion_dummy_driver.c +++ b/drivers/staging/android/ion/ion_dummy_driver.c @@ -71,7 +71,7 @@ static int __init ion_dummy_init(void) heaps = kzalloc(sizeof(struct ion_heap *) * dummy_ion_pdata.nr, GFP_KERNEL); if (!heaps) - return PTR_ERR(heaps); + return -ENOMEM; /* Allocate a dummy carveout heap */ From f1ffdfcc52744ed264041741020364cfbad9c0de Mon Sep 17 00:00:00 2001 From: Ian Abbott Date: Tue, 21 Jan 2014 17:06:34 +0000 Subject: [PATCH 38/55] staging: comedi: fix too early cleanup in comedi_auto_config() `comedi_auto_config()` is usually called from the probe routine of a low-level comedi driver to allocate and auto-configure a comedi device. Part of this involves calling the low-level driver's `auto_attach()` handler, and if that is successful, `comedi_device_postconfig()` tries to complete the configuration of the comedi device. If either of those fail, `comedi_device_detach()` is called to clean up, and `comedi_release_hardware_device()` is called to remove the dynamically allocated comedi device. Unfortunately, `comedi_device_detach()` clears the `hw_dev` member of the `struct comedi_device` (indirectly via `comedi_clear_hw_dev()`), and that stops `comedi_release_hardware_device()` finding the comedi device associated with the hardware device, so the comedi device won't be removed properly. Since `comedi_release_hardware_device()` also calls `comedi_device_detach()` (assuming it finds the comedi device associated with the hardware device), the fix is to remove the direct call to `comedi_device_detach()` from `comedi_auto_config()` and let the call to `comedi_release_hardware_device()` take care of it. Signed-off-by: Ian Abbott Signed-off-by: Greg Kroah-Hartman --- drivers/staging/comedi/drivers.c | 2 -- 1 file changed, 2 deletions(-) diff --git a/drivers/staging/comedi/drivers.c b/drivers/staging/comedi/drivers.c index 246080316c90..5b15033a94bf 100644 --- a/drivers/staging/comedi/drivers.c +++ b/drivers/staging/comedi/drivers.c @@ -616,8 +616,6 @@ int comedi_auto_config(struct device *hardware_device, ret = driver->auto_attach(dev, context); if (ret >= 0) ret = comedi_device_postconfig(dev); - if (ret < 0) - comedi_device_detach(dev); mutex_unlock(&dev->mutex); if (ret < 0) { From 791771e4e0587652e193ac8920e14911045a1dc8 Mon Sep 17 00:00:00 2001 From: Ian Abbott Date: Tue, 21 Jan 2014 17:39:05 +0000 Subject: [PATCH 39/55] staging: comedi: usbduxsigma: fix unaligned dereferences There are a couple of dereferences such as `*(uint32_t *)(devpriv->insn_buf + 1)` that are unaligned as `devpriv->insn_buf` is of type `uint8_t *`. This works on x86 architecture but may not be supported on other architectures. Call `get_unalign()` to perform the unaligned dereferences. Signed-off-by: Ian Abbott Cc: Bernd Porr Signed-off-by: Greg Kroah-Hartman --- drivers/staging/comedi/drivers/usbduxsigma.c | 6 ++++-- 1 file changed, 4 insertions(+), 2 deletions(-) diff --git a/drivers/staging/comedi/drivers/usbduxsigma.c b/drivers/staging/comedi/drivers/usbduxsigma.c index 3beeb1254152..88c60b6020c4 100644 --- a/drivers/staging/comedi/drivers/usbduxsigma.c +++ b/drivers/staging/comedi/drivers/usbduxsigma.c @@ -48,6 +48,7 @@ #include #include #include +#include #include "comedi_fc.h" #include "../comedidev.h" @@ -792,7 +793,8 @@ static int usbduxsigma_ai_insn_read(struct comedi_device *dev, } /* 32 bits big endian from the A/D converter */ - val = be32_to_cpu(*((uint32_t *)((devpriv->insn_buf) + 1))); + val = be32_to_cpu(get_unaligned((uint32_t + *)(devpriv->insn_buf + 1))); val &= 0x00ffffff; /* strip status byte */ val ^= 0x00800000; /* convert to unsigned */ @@ -1357,7 +1359,7 @@ static int usbduxsigma_getstatusinfo(struct comedi_device *dev, int chan) return ret; /* 32 bits big endian from the A/D converter */ - val = be32_to_cpu(*((uint32_t *)((devpriv->insn_buf)+1))); + val = be32_to_cpu(get_unaligned((uint32_t *)(devpriv->insn_buf + 1))); val &= 0x00ffffff; /* strip status byte */ val ^= 0x00800000; /* convert to unsigned */ From 54de9af9f0d7a91e898b6e02199be16dc26a4870 Mon Sep 17 00:00:00 2001 From: Dan Carpenter Date: Wed, 22 Jan 2014 17:20:03 +0300 Subject: [PATCH 40/55] gpu: ion: dereferencing an ERR_PTR We dereference "heap->task" before checking if it's an ERR_PTR. Fixes: ea313b5f88ed ('gpu: ion: Also shrink memory cached in the deferred free list') Signed-off-by: Dan Carpenter Signed-off-by: Greg Kroah-Hartman --- drivers/staging/android/ion/ion_heap.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/staging/android/ion/ion_heap.c b/drivers/staging/android/ion/ion_heap.c index 296c74f98dc0..37e64d51394c 100644 --- a/drivers/staging/android/ion/ion_heap.c +++ b/drivers/staging/android/ion/ion_heap.c @@ -243,12 +243,12 @@ int ion_heap_init_deferred_free(struct ion_heap *heap) init_waitqueue_head(&heap->waitqueue); heap->task = kthread_run(ion_heap_deferred_free, heap, "%s", heap->name); - sched_setscheduler(heap->task, SCHED_IDLE, ¶m); if (IS_ERR(heap->task)) { pr_err("%s: creating thread for deferred free failed\n", __func__); return PTR_RET(heap->task); } + sched_setscheduler(heap->task, SCHED_IDLE, ¶m); return 0; } From 2a7470d9ffe506ff895f4a27dcf3840cb3ea097f Mon Sep 17 00:00:00 2001 From: Heinrich Schuchardt Date: Tue, 28 Jan 2014 21:16:46 +0100 Subject: [PATCH 41/55] usbip/userspace/libsrc/names.c: memory leak revised patch p is freed if NULL. p is leaked if second calloc fails. Signed-off-by: Heinrich Schuchardt Signed-off-by: Greg Kroah-Hartman --- drivers/staging/usbip/userspace/libsrc/names.c | 10 +++++----- 1 file changed, 5 insertions(+), 5 deletions(-) diff --git a/drivers/staging/usbip/userspace/libsrc/names.c b/drivers/staging/usbip/userspace/libsrc/names.c index 3c8d28b771e0..81ff8522405c 100644 --- a/drivers/staging/usbip/userspace/libsrc/names.c +++ b/drivers/staging/usbip/userspace/libsrc/names.c @@ -169,15 +169,15 @@ static void *my_malloc(size_t size) struct pool *p; p = calloc(1, sizeof(struct pool)); - if (!p) { + if (!p) + return NULL; + + p->mem = calloc(1, size); + if (!p->mem) { free(p); return NULL; } - p->mem = calloc(1, size); - if (!p->mem) - return NULL; - p->next = pool_head; pool_head = p; From 08951f10ae146d0c4114ac508310ad316b6f8798 Mon Sep 17 00:00:00 2001 From: Larry Finger Date: Sun, 2 Feb 2014 22:23:06 -0600 Subject: [PATCH 42/55] staging: r8188eu: Fix typo in USB_DEVICE list There is a typo in the device list that interchanges the vendor and product codes for one of the entries. This exchange was determined by noticing that the vendor code is 0x07b8 for Abocom at http://www.linux-usb.org/usb.ids. Signed-off-by: Larry Finger Cc: stable Signed-off-by: Greg Kroah-Hartman --- drivers/staging/rtl8188eu/os_dep/usb_intf.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/staging/rtl8188eu/os_dep/usb_intf.c b/drivers/staging/rtl8188eu/os_dep/usb_intf.c index 0a341d6ec51f..a70dcef1419e 100644 --- a/drivers/staging/rtl8188eu/os_dep/usb_intf.c +++ b/drivers/staging/rtl8188eu/os_dep/usb_intf.c @@ -53,7 +53,7 @@ static struct usb_device_id rtw_usb_id_tbl[] = { {USB_DEVICE(USB_VENDER_ID_REALTEK, 0x0179)}, /* 8188ETV */ /*=== Customer ID ===*/ /****** 8188EUS ********/ - {USB_DEVICE(0x8179, 0x07B8)}, /* Abocom - Abocom */ + {USB_DEVICE(0x07b8, 0x8179)}, /* Abocom - Abocom */ {USB_DEVICE(0x2001, 0x330F)}, /* DLink DWA-125 REV D1 */ {} /* Terminating entry */ }; From 893134b084e137b92476ec11ce90790b5f568bb9 Mon Sep 17 00:00:00 2001 From: Dan Carpenter Date: Tue, 4 Feb 2014 01:38:03 +0300 Subject: [PATCH 43/55] staging: r8188eu: array overflow in rtw_mp_ioctl_hdl() MAX_MP_IOCTL_SUBCODE (35) and mp_ioctl_hdl (32 elements) are no longer in sync. It leads to a bogus pointer dereference. Signed-off-by: Dan Carpenter Acked-by: Larry Finger Signed-off-by: Greg Kroah-Hartman --- drivers/staging/rtl8188eu/os_dep/ioctl_linux.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/staging/rtl8188eu/os_dep/ioctl_linux.c b/drivers/staging/rtl8188eu/os_dep/ioctl_linux.c index dec992569476..684bc8107a48 100644 --- a/drivers/staging/rtl8188eu/os_dep/ioctl_linux.c +++ b/drivers/staging/rtl8188eu/os_dep/ioctl_linux.c @@ -2500,7 +2500,7 @@ static int rtw_mp_ioctl_hdl(struct net_device *dev, struct iw_request_info *info ("rtw_mp_ioctl_hdl: subcode [%d], len[%d], buffer_len[%d]\r\n", poidparam->subcode, poidparam->len, len)); - if (poidparam->subcode >= MAX_MP_IOCTL_SUBCODE) { + if (poidparam->subcode >= ARRAY_SIZE(mp_ioctl_hdl)) { RT_TRACE(_module_rtl871x_ioctl_os_c, _drv_err_, ("no matching drvext subcodes\r\n")); ret = -EINVAL; goto _rtw_mp_ioctl_hdl_exit; From e6ff3f4e6d258021fe041d7acf5d013c26bf387b Mon Sep 17 00:00:00 2001 From: Dan Carpenter Date: Tue, 4 Feb 2014 01:38:35 +0300 Subject: [PATCH 44/55] staging: r8188eu: overflow in rtw_p2p_get_go_device_address() The go_devadd_str[] array is two characters too small to hold the address so we corrupt memory. I've changed the user space API slightly and I don't have a way to test if this breaks anything. In the original code we truncated away the last digit of the address and the NUL terminator so it was already a bit broken. Signed-off-by: Dan Carpenter Acked-by: Larry Finger Signed-off-by: Greg Kroah-Hartman --- drivers/staging/rtl8188eu/os_dep/ioctl_linux.c | 10 ++++------ 1 file changed, 4 insertions(+), 6 deletions(-) diff --git a/drivers/staging/rtl8188eu/os_dep/ioctl_linux.c b/drivers/staging/rtl8188eu/os_dep/ioctl_linux.c index 684bc8107a48..4ad80ae1067f 100644 --- a/drivers/staging/rtl8188eu/os_dep/ioctl_linux.c +++ b/drivers/staging/rtl8188eu/os_dep/ioctl_linux.c @@ -3164,9 +3164,7 @@ static int rtw_p2p_get_go_device_address(struct net_device *dev, u8 *p2pie; uint p2pielen = 0, attr_contentlen = 0; u8 attr_content[100] = {0x00}; - - u8 go_devadd_str[17 + 10] = {0x00}; - /* +10 is for the str "go_devadd =", we have to clear it at wrqu->data.pointer */ + u8 go_devadd_str[17 + 12] = {}; /* Commented by Albert 20121209 */ /* The input data is the GO's interface address which the application wants to know its device address. */ @@ -3223,12 +3221,12 @@ static int rtw_p2p_get_go_device_address(struct net_device *dev, spin_unlock_bh(&pmlmepriv->scanned_queue.lock); if (!blnMatch) - sprintf(go_devadd_str, "\n\ndev_add = NULL"); + snprintf(go_devadd_str, sizeof(go_devadd_str), "\n\ndev_add = NULL"); else - sprintf(go_devadd_str, "\n\ndev_add =%.2X:%.2X:%.2X:%.2X:%.2X:%.2X", + snprintf(go_devadd_str, sizeof(go_devadd_str), "\n\ndev_add =%.2X:%.2X:%.2X:%.2X:%.2X:%.2X", attr_content[0], attr_content[1], attr_content[2], attr_content[3], attr_content[4], attr_content[5]); - if (copy_to_user(wrqu->data.pointer, go_devadd_str, 10 + 17)) + if (copy_to_user(wrqu->data.pointer, go_devadd_str, sizeof(go_devadd_str))) return -EFAULT; return ret; } From ad3815a595fd7a5c5e4a24947a56eec29582a505 Mon Sep 17 00:00:00 2001 From: Alan Cox Date: Wed, 5 Feb 2014 11:56:43 +0000 Subject: [PATCH 45/55] xlr_net: Fix missing trivial allocation check Signed-off-by: Alan Cox Signed-off-by: Greg Kroah-Hartman --- drivers/staging/netlogic/xlr_net.c | 5 +++++ 1 file changed, 5 insertions(+) diff --git a/drivers/staging/netlogic/xlr_net.c b/drivers/staging/netlogic/xlr_net.c index eedffed17e39..d8ea25486a33 100644 --- a/drivers/staging/netlogic/xlr_net.c +++ b/drivers/staging/netlogic/xlr_net.c @@ -892,6 +892,11 @@ static int xlr_setup_mdio(struct xlr_net_priv *priv, priv->mii_bus->write = xlr_mii_write; priv->mii_bus->parent = &pdev->dev; priv->mii_bus->irq = kmalloc(sizeof(int)*PHY_MAX_ADDR, GFP_KERNEL); + if (priv->mii_bus->irq == NULL) { + pr_err("irq alloc failed\n"); + mdiobus_free(priv->mii_bus); + return -ENOMEM; + } priv->mii_bus->irq[priv->phy_addr] = priv->ndev->irq; /* Scan only the enabled address */ From 6b89db36b3ab7c4b99027873e1de4be8d07387d4 Mon Sep 17 00:00:00 2001 From: Maurizio Lombardi Date: Wed, 5 Feb 2014 16:46:56 +0100 Subject: [PATCH 46/55] wlags49_h2: Fix overflow in wireless_set_essid() This patch prevents the wireless_set_essid() function from overwriting the last byte of the NetworkName buffer which must be NULL. Signed-off-by: Maurizio Lombardi Signed-off-by: Greg Kroah-Hartman --- drivers/staging/wlags49_h2/wl_wext.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/staging/wlags49_h2/wl_wext.c b/drivers/staging/wlags49_h2/wl_wext.c index 4a1ddaf5e00f..187fc060de26 100644 --- a/drivers/staging/wlags49_h2/wl_wext.c +++ b/drivers/staging/wlags49_h2/wl_wext.c @@ -1061,7 +1061,7 @@ static int wireless_set_essid(struct net_device *dev, struct iw_request_info *in goto out; } - if (data->flags != 0 && data->length > HCF_MAX_NAME_LEN + 1) { + if (data->flags != 0 && data->length > HCF_MAX_NAME_LEN) { ret = -EINVAL; goto out; } From f25330f63edd8e2d02ca76ed43fc852d4d76bb12 Mon Sep 17 00:00:00 2001 From: Peter Meerwald Date: Wed, 1 Oct 2014 21:59:00 +0100 Subject: [PATCH 47/55] iio:magnetometer:mag3110: Report busy in _read_raw() / write_raw() when buffer is enabled individual reads are not permitted concurrently with buffered reads Signed-off-by: Peter Meerwald Signed-off-by: Jonathan Cameron --- drivers/iio/magnetometer/mag3110.c | 6 ++++++ 1 file changed, 6 insertions(+) diff --git a/drivers/iio/magnetometer/mag3110.c b/drivers/iio/magnetometer/mag3110.c index 4b65b6d3bdb1..b88cb44f87ce 100644 --- a/drivers/iio/magnetometer/mag3110.c +++ b/drivers/iio/magnetometer/mag3110.c @@ -154,6 +154,9 @@ static int mag3110_read_raw(struct iio_dev *indio_dev, switch (mask) { case IIO_CHAN_INFO_RAW: + if (iio_buffer_enabled(indio_dev)) + return -EBUSY; + switch (chan->type) { case IIO_MAGN: /* in 0.1 uT / LSB */ ret = mag3110_read(data, buffer); @@ -199,6 +202,9 @@ static int mag3110_write_raw(struct iio_dev *indio_dev, struct mag3110_data *data = iio_priv(indio_dev); int rate; + if (iio_buffer_enabled(indio_dev)) + return -EBUSY; + switch (mask) { case IIO_CHAN_INFO_SAMP_FREQ: rate = mag3110_get_samp_freq_index(data, val, val2); From 71bd89454d4cd6a4d0304aa8c3304ed8b0a294dc Mon Sep 17 00:00:00 2001 From: Peter Meerwald Date: Wed, 1 Oct 2014 21:59:00 +0100 Subject: [PATCH 48/55] iio:magnetometer:mag3110: Fix output of decimal digits in show_int_plus_micros() need to print leading zeros, hence "%d.%06d" Signed-off-by: Peter Meerwald Signed-off-by: Jonathan Cameron --- drivers/iio/magnetometer/mag3110.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/iio/magnetometer/mag3110.c b/drivers/iio/magnetometer/mag3110.c index b88cb44f87ce..f66955fb3509 100644 --- a/drivers/iio/magnetometer/mag3110.c +++ b/drivers/iio/magnetometer/mag3110.c @@ -106,7 +106,7 @@ static ssize_t mag3110_show_int_plus_micros(char *buf, while (n-- > 0) len += scnprintf(buf + len, PAGE_SIZE - len, - "%d.%d ", vals[n][0], vals[n][1]); + "%d.%06d ", vals[n][0], vals[n][1]); /* replace trailing space by newline */ buf[len - 1] = '\n'; From d4bf105bb65b61fd9036031a1854383381ef638f Mon Sep 17 00:00:00 2001 From: Alexandre Belloni Date: Mon, 13 Jan 2014 16:02:00 +0000 Subject: [PATCH 49/55] iio: mxs-lradc: fix buffer overflow Fixes: drivers/staging/iio/adc/mxs-lradc.c:1556 mxs_lradc_probe() error: buffer overflow 'iio->channels' 15 <= 15 The reported available scales for in_voltage15 were also wrong. The realbits lookup is not necessary as all the channels of the LRADC have the same resolution, use LRADC_RESOLUTION instead. Reported-by: Dan Carpenter Signed-off-by: Alexandre Belloni Signed-off-by: Jonathan Cameron --- drivers/staging/iio/adc/mxs-lradc.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/staging/iio/adc/mxs-lradc.c b/drivers/staging/iio/adc/mxs-lradc.c index df71669bb60e..aa86849daeba 100644 --- a/drivers/staging/iio/adc/mxs-lradc.c +++ b/drivers/staging/iio/adc/mxs-lradc.c @@ -1613,7 +1613,7 @@ static int mxs_lradc_probe(struct platform_device *pdev) * of the array. */ scale_uv = ((u64)lradc->vref_mv[i] * 100000000) >> - (iio->channels[i].scan_type.realbits - s); + (LRADC_RESOLUTION - s); lradc->scale_avail[i][s].nano = do_div(scale_uv, 100000000) * 10; lradc->scale_avail[i][s].integer = scale_uv; From 5af473c17accce1094990d25c5381264433c5fa9 Mon Sep 17 00:00:00 2001 From: Alexandre Belloni Date: Mon, 13 Jan 2014 16:02:00 +0000 Subject: [PATCH 50/55] iio: mxs-lradc: remove useless scale_available files in_voltage8_scale_available and in_voltage9_scale_available are exposed to userspace but useless as in_voltage8_raw and in_voltage9_raw are not available. Signed-off-by: Alexandre Belloni Signed-off-by: Jonathan Cameron --- drivers/staging/iio/adc/mxs-lradc.c | 4 ---- 1 file changed, 4 deletions(-) diff --git a/drivers/staging/iio/adc/mxs-lradc.c b/drivers/staging/iio/adc/mxs-lradc.c index aa86849daeba..7fc66a6a6e36 100644 --- a/drivers/staging/iio/adc/mxs-lradc.c +++ b/drivers/staging/iio/adc/mxs-lradc.c @@ -1035,8 +1035,6 @@ SHOW_SCALE_AVAILABLE_ATTR(4); SHOW_SCALE_AVAILABLE_ATTR(5); SHOW_SCALE_AVAILABLE_ATTR(6); SHOW_SCALE_AVAILABLE_ATTR(7); -SHOW_SCALE_AVAILABLE_ATTR(8); -SHOW_SCALE_AVAILABLE_ATTR(9); SHOW_SCALE_AVAILABLE_ATTR(10); SHOW_SCALE_AVAILABLE_ATTR(11); SHOW_SCALE_AVAILABLE_ATTR(12); @@ -1053,8 +1051,6 @@ static struct attribute *mxs_lradc_attributes[] = { &iio_dev_attr_in_voltage5_scale_available.dev_attr.attr, &iio_dev_attr_in_voltage6_scale_available.dev_attr.attr, &iio_dev_attr_in_voltage7_scale_available.dev_attr.attr, - &iio_dev_attr_in_voltage8_scale_available.dev_attr.attr, - &iio_dev_attr_in_voltage9_scale_available.dev_attr.attr, &iio_dev_attr_in_voltage10_scale_available.dev_attr.attr, &iio_dev_attr_in_voltage11_scale_available.dev_attr.attr, &iio_dev_attr_in_voltage12_scale_available.dev_attr.attr, From d180371d412627a10dc31d675ef8bc777567df09 Mon Sep 17 00:00:00 2001 From: Hartmut Knaack Date: Sat, 2 Aug 2014 00:07:00 +0100 Subject: [PATCH 51/55] staging:iio:ad799x fix typo in ad799x_events[] This patch fixes a typo in ad799x_events[], which caused the error "Failed to register event set". Signed-off-by: Hartmut Knaack Cc: stable@vger.kernel.org Signed-off-by: Jonathan Cameron --- drivers/staging/iio/adc/ad799x_core.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/staging/iio/adc/ad799x_core.c b/drivers/staging/iio/adc/ad799x_core.c index 31a2be688060..5708ffc62aec 100644 --- a/drivers/staging/iio/adc/ad799x_core.c +++ b/drivers/staging/iio/adc/ad799x_core.c @@ -393,7 +393,7 @@ static const struct iio_event_spec ad799x_events[] = { }, { .type = IIO_EV_TYPE_THRESH, .dir = IIO_EV_DIR_FALLING, - .mask_separate = BIT(IIO_EV_INFO_VALUE), + .mask_separate = BIT(IIO_EV_INFO_VALUE) | BIT(IIO_EV_INFO_ENABLE), }, { .type = IIO_EV_TYPE_THRESH, From bef44abccb2677e8d16e50b75316d4fd1061be81 Mon Sep 17 00:00:00 2001 From: Beomho Seo Date: Wed, 2 Apr 2014 09:15:00 +0100 Subject: [PATCH 52/55] iio: ak8975: Fix calculation formula for convert micro tesla to gauss unit This effects the reported scale of the raw values, and thus userspace applications that use this value. One micro tesla equal 0.01 gauss. So I have fixed calculation formula And add RAW_TO_GAUSS macro. ASA is in the range of 0 to 255. If multiply 0.003, calculation result(in_magn_[*]_scale) is always 0. So multiply 3000 and return and IIO_VAL_INT_PLUS_MICRO. As a result, read_raw call back function return accurate scale value. Signed-off-by: Beomho Seo Cc: stable@vger.kernel.org Signed-off-by: Jonathan Cameron --- drivers/iio/magnetometer/ak8975.c | 16 +++++++++------- 1 file changed, 9 insertions(+), 7 deletions(-) diff --git a/drivers/iio/magnetometer/ak8975.c b/drivers/iio/magnetometer/ak8975.c index ff284e5afd95..05423543f89d 100644 --- a/drivers/iio/magnetometer/ak8975.c +++ b/drivers/iio/magnetometer/ak8975.c @@ -85,6 +85,7 @@ #define AK8975_MAX_CONVERSION_TIMEOUT 500 #define AK8975_CONVERSION_DONE_POLL_TIME 10 #define AK8975_DATA_READY_TIMEOUT ((100*HZ)/1000) +#define RAW_TO_GAUSS(asa) ((((asa) + 128) * 3000) / 256) /* * Per-instance context data for the device. @@ -265,15 +266,15 @@ static int ak8975_setup(struct i2c_client *client) * * Since 1uT = 0.01 gauss, our final scale factor becomes: * - * Hadj = H * ((ASA + 128) / 256) * 3/10 * 100 - * Hadj = H * ((ASA + 128) * 30 / 256 + * Hadj = H * ((ASA + 128) / 256) * 3/10 * 1/100 + * Hadj = H * ((ASA + 128) * 0.003) / 256 * * Since ASA doesn't change, we cache the resultant scale factor into the * device context in ak8975_setup(). */ - data->raw_to_gauss[0] = ((data->asa[0] + 128) * 30) >> 8; - data->raw_to_gauss[1] = ((data->asa[1] + 128) * 30) >> 8; - data->raw_to_gauss[2] = ((data->asa[2] + 128) * 30) >> 8; + data->raw_to_gauss[0] = RAW_TO_GAUSS(data->asa[0]); + data->raw_to_gauss[1] = RAW_TO_GAUSS(data->asa[1]); + data->raw_to_gauss[2] = RAW_TO_GAUSS(data->asa[2]); return 0; } @@ -428,8 +429,9 @@ static int ak8975_read_raw(struct iio_dev *indio_dev, case IIO_CHAN_INFO_RAW: return ak8975_read_axis(indio_dev, chan->address, val); case IIO_CHAN_INFO_SCALE: - *val = data->raw_to_gauss[chan->address]; - return IIO_VAL_INT; + *val = 0; + *val2 = data->raw_to_gauss[chan->address]; + return IIO_VAL_INT_PLUS_MICRO; } return -EINVAL; } From c76782d151dab7ecfdcdf9a01561c2d61d9b490f Mon Sep 17 00:00:00 2001 From: Marcus Folkesson Date: Fri, 24 Jan 2014 11:24:00 +0000 Subject: [PATCH 53/55] iio: adis16400: Set timestamp as the last element in chan_spec This is necessary since timestamp is calculated as the last element in iio_compute_scan_bytes(). Without this fix any userspace code reading the layout of the buffer via sysfs will incorrectly interpret the data leading some nasty corruption. Signed-off-by: Marcus Folkesson Acked-by: Lars-Peter Clausen Cc: stable@vger.kernel.org Signed-off-by: Jonathan Cameron --- drivers/iio/imu/adis16400.h | 1 + drivers/iio/imu/adis16400_core.c | 10 +++++----- 2 files changed, 6 insertions(+), 5 deletions(-) diff --git a/drivers/iio/imu/adis16400.h b/drivers/iio/imu/adis16400.h index 2f8f9d632386..0916bf6b6c31 100644 --- a/drivers/iio/imu/adis16400.h +++ b/drivers/iio/imu/adis16400.h @@ -189,6 +189,7 @@ enum { ADIS16300_SCAN_INCLI_X, ADIS16300_SCAN_INCLI_Y, ADIS16400_SCAN_ADC, + ADIS16400_SCAN_TIMESTAMP, }; #ifdef CONFIG_IIO_BUFFER diff --git a/drivers/iio/imu/adis16400_core.c b/drivers/iio/imu/adis16400_core.c index 368660dfe135..7c582f7ae34e 100644 --- a/drivers/iio/imu/adis16400_core.c +++ b/drivers/iio/imu/adis16400_core.c @@ -632,7 +632,7 @@ static const struct iio_chan_spec adis16400_channels[] = { ADIS16400_MAGN_CHAN(Z, ADIS16400_ZMAGN_OUT, 14), ADIS16400_TEMP_CHAN(ADIS16400_TEMP_OUT, 12), ADIS16400_AUX_ADC_CHAN(ADIS16400_AUX_ADC, 12), - IIO_CHAN_SOFT_TIMESTAMP(12) + IIO_CHAN_SOFT_TIMESTAMP(ADIS16400_SCAN_TIMESTAMP), }; static const struct iio_chan_spec adis16448_channels[] = { @@ -659,7 +659,7 @@ static const struct iio_chan_spec adis16448_channels[] = { }, }, ADIS16400_TEMP_CHAN(ADIS16448_TEMP_OUT, 12), - IIO_CHAN_SOFT_TIMESTAMP(11) + IIO_CHAN_SOFT_TIMESTAMP(ADIS16400_SCAN_TIMESTAMP), }; static const struct iio_chan_spec adis16350_channels[] = { @@ -677,7 +677,7 @@ static const struct iio_chan_spec adis16350_channels[] = { ADIS16400_MOD_TEMP_CHAN(X, ADIS16350_XTEMP_OUT, 12), ADIS16400_MOD_TEMP_CHAN(Y, ADIS16350_YTEMP_OUT, 12), ADIS16400_MOD_TEMP_CHAN(Z, ADIS16350_ZTEMP_OUT, 12), - IIO_CHAN_SOFT_TIMESTAMP(11) + IIO_CHAN_SOFT_TIMESTAMP(ADIS16400_SCAN_TIMESTAMP), }; static const struct iio_chan_spec adis16300_channels[] = { @@ -690,7 +690,7 @@ static const struct iio_chan_spec adis16300_channels[] = { ADIS16400_AUX_ADC_CHAN(ADIS16300_AUX_ADC, 12), ADIS16400_INCLI_CHAN(X, ADIS16300_PITCH_OUT, 13), ADIS16400_INCLI_CHAN(Y, ADIS16300_ROLL_OUT, 13), - IIO_CHAN_SOFT_TIMESTAMP(14) + IIO_CHAN_SOFT_TIMESTAMP(ADIS16400_SCAN_TIMESTAMP), }; static const struct iio_chan_spec adis16334_channels[] = { @@ -701,7 +701,7 @@ static const struct iio_chan_spec adis16334_channels[] = { ADIS16400_ACCEL_CHAN(Y, ADIS16400_YACCL_OUT, 14), ADIS16400_ACCEL_CHAN(Z, ADIS16400_ZACCL_OUT, 14), ADIS16400_TEMP_CHAN(ADIS16350_XTEMP_OUT, 12), - IIO_CHAN_SOFT_TIMESTAMP(8) + IIO_CHAN_SOFT_TIMESTAMP(ADIS16400_SCAN_TIMESTAMP), }; static struct attribute *adis16400_attributes[] = { From 5585215b6daabf898b4d40f33d1b8c1d41e85018 Mon Sep 17 00:00:00 2001 From: Peter Meerwald Date: Wed, 1 Oct 2014 21:37:00 +0100 Subject: [PATCH 54/55] iio:accel:bma180: Use modifier instead of index in channel specification This driver was not complying with the ABI and the purpose of this patch is to bring it inline so that userspace will correctly identify the channels. Should use channel modifiers (X/Y/Z), not channel indices timestamp channel has scan index 3, not 4 Signed-off-by: Peter Meerwald Cc: Kravchenko Oleksandr Cc: Stable@vger.kernel.org Signed-off-by: Jonathan Cameron --- drivers/iio/accel/bma180.c | 16 ++++++++-------- 1 file changed, 8 insertions(+), 8 deletions(-) diff --git a/drivers/iio/accel/bma180.c b/drivers/iio/accel/bma180.c index 3bec9220df04..bfec313492b3 100644 --- a/drivers/iio/accel/bma180.c +++ b/drivers/iio/accel/bma180.c @@ -447,14 +447,14 @@ static const struct iio_chan_spec_ext_info bma180_ext_info[] = { { }, }; -#define BMA180_CHANNEL(_index) { \ +#define BMA180_CHANNEL(_axis) { \ .type = IIO_ACCEL, \ - .indexed = 1, \ - .channel = (_index), \ + .modified = 1, \ + .channel2 = IIO_MOD_##_axis, \ .info_mask_separate = BIT(IIO_CHAN_INFO_RAW) | \ BIT(IIO_CHAN_INFO_LOW_PASS_FILTER_3DB_FREQUENCY), \ .info_mask_shared_by_type = BIT(IIO_CHAN_INFO_SCALE), \ - .scan_index = (_index), \ + .scan_index = AXIS_##_axis, \ .scan_type = { \ .sign = 's', \ .realbits = 14, \ @@ -465,10 +465,10 @@ static const struct iio_chan_spec_ext_info bma180_ext_info[] = { } static const struct iio_chan_spec bma180_channels[] = { - BMA180_CHANNEL(AXIS_X), - BMA180_CHANNEL(AXIS_Y), - BMA180_CHANNEL(AXIS_Z), - IIO_CHAN_SOFT_TIMESTAMP(4), + BMA180_CHANNEL(X), + BMA180_CHANNEL(Y), + BMA180_CHANNEL(Z), + IIO_CHAN_SOFT_TIMESTAMP(3), }; static irqreturn_t bma180_trigger_handler(int irq, void *p) From 55b40d37311807a6bb2acdae0df904f54a0da3ae Mon Sep 17 00:00:00 2001 From: Guenter Roeck Date: Mon, 27 Jan 2014 18:10:00 +0000 Subject: [PATCH 55/55] iio: max1363: Use devm_regulator_get_optional for optional regulator In kernel version 3.13, devm_regulator_get() may return no error if a regulator is undeclared. regulator_get_voltage() will return -EINVAL if this happens. This causes the driver to fail loading if the vref regulator is not declared. Since vref is optional, call devm_regulator_get_optional instead. Signed-off-by: Guenter Roeck Cc: Stable@vger.kernel.org Signed-off-by: Jonathan Cameron --- drivers/iio/adc/max1363.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/iio/adc/max1363.c b/drivers/iio/adc/max1363.c index e283f2f2ee2f..360259266d4f 100644 --- a/drivers/iio/adc/max1363.c +++ b/drivers/iio/adc/max1363.c @@ -1560,7 +1560,7 @@ static int max1363_probe(struct i2c_client *client, st->client = client; st->vref_uv = st->chip_info->int_vref_mv * 1000; - vref = devm_regulator_get(&client->dev, "vref"); + vref = devm_regulator_get_optional(&client->dev, "vref"); if (!IS_ERR(vref)) { int vref_uv;