Commit Graph

948914 Commits

Author SHA1 Message Date
Vasanthakumar Thiagarajan
e61fbfca80 mac80211: Fix bug in Tx ack status reporting in 802.3 xmit path
Allocated ack_frame id from local->ack_status_frames is not really
stored in the tx_info for 802.3 Tx path. Due to this, tx ack status
is not reported and ack_frame id is not freed for the buffers requiring
tx ack status. Also move the memset to 0 of tx_info before
IEEE80211_TX_CTL_REQ_TX_STATUS flag assignment.

Fixes: 50ff477a86 ("mac80211: add 802.11 encapsulation offloading support")
Signed-off-by: Vasanthakumar Thiagarajan <vthiagar@codeaurora.org>
Link: https://lore.kernel.org/r/1595427617-1713-1-git-send-email-vthiagar@codeaurora.org
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2020-07-30 10:25:17 +02:00
Julian Squires
4052d3d2e8 cfg80211: check vendor command doit pointer before use
In the case where a vendor command does not implement doit, and has no
flags set, doit would not be validated and a NULL pointer dereference
would occur, for example when invoking the vendor command via iw.

I encountered this while developing new vendor commands.  Perhaps in
practice it is advisable to always implement doit along with dumpit,
but it seems reasonable to me to always check doit anyway, not just
when NEED_WDEV.

Signed-off-by: Julian Squires <julian@cipht.net>
Link: https://lore.kernel.org/r/20200706211353.2366470-1-julian@cipht.net
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2020-07-30 10:24:01 +02:00
Remi Pommarel
5e43540c2a mac80211: mesh: Free pending skb when destroying a mpath
A mpath object can hold reference on a list of skb that are waiting for
mpath resolution to be sent. When destroying a mpath this skb list
should be cleaned up in order to not leak memory.

Fixing that kind of leak:

unreferenced object 0xffff0000181c9300 (size 1088):
  comm "openvpn", pid 1782, jiffies 4295071698 (age 80.416s)
  hex dump (first 32 bytes):
    00 00 00 00 00 00 00 00 f9 80 36 00 00 00 00 00  ..........6.....
    02 00 07 40 00 00 00 00 00 00 00 00 00 00 00 00  ...@............
  backtrace:
    [<000000004bc6a443>] kmem_cache_alloc+0x1a4/0x2f0
    [<000000002caaef13>] sk_prot_alloc.isra.39+0x34/0x178
    [<00000000ceeaa916>] sk_alloc+0x34/0x228
    [<00000000ca1f1d04>] inet_create+0x198/0x518
    [<0000000035626b1c>] __sock_create+0x134/0x328
    [<00000000a12b3a87>] __sys_socket+0xb0/0x158
    [<00000000ff859f23>] __arm64_sys_socket+0x40/0x58
    [<00000000263486ec>] el0_svc_handler+0xd0/0x1a0
    [<0000000005b5157d>] el0_svc+0x8/0xc
unreferenced object 0xffff000012973a40 (size 216):
  comm "openvpn", pid 1782, jiffies 4295082137 (age 38.660s)
  hex dump (first 32 bytes):
    00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00  ................
    00 c0 06 16 00 00 ff ff 00 93 1c 18 00 00 ff ff  ................
  backtrace:
    [<000000004bc6a443>] kmem_cache_alloc+0x1a4/0x2f0
    [<0000000023c8c8f9>] __alloc_skb+0xc0/0x2b8
    [<000000007ad950bb>] alloc_skb_with_frags+0x60/0x320
    [<00000000ef90023a>] sock_alloc_send_pskb+0x388/0x3c0
    [<00000000104fb1a3>] sock_alloc_send_skb+0x1c/0x28
    [<000000006919d2dd>] __ip_append_data+0xba4/0x11f0
    [<0000000083477587>] ip_make_skb+0x14c/0x1a8
    [<0000000024f3d592>] udp_sendmsg+0xaf0/0xcf0
    [<000000005aabe255>] inet_sendmsg+0x5c/0x80
    [<000000008651ea08>] __sys_sendto+0x15c/0x218
    [<000000003505c99b>] __arm64_sys_sendto+0x74/0x90
    [<00000000263486ec>] el0_svc_handler+0xd0/0x1a0
    [<0000000005b5157d>] el0_svc+0x8/0xc

Fixes: 2bdaf386f9 (mac80211: mesh: move path tables into if_mesh)
Signed-off-by: Remi Pommarel <repk@triplefau.lt>
Link: https://lore.kernel.org/r/20200704135419.27703-1-repk@triplefau.lt
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2020-07-30 10:23:48 +02:00
Remi Pommarel
6a01afcf84 mac80211: mesh: Free ie data when leaving mesh
At ieee80211_join_mesh() some ie data could have been allocated (see
copy_mesh_setup()) and need to be cleaned up when leaving the mesh.

This fixes the following kmemleak report:

unreferenced object 0xffff0000116bc600 (size 128):
  comm "wpa_supplicant", pid 608, jiffies 4294898983 (age 293.484s)
  hex dump (first 32 bytes):
    30 14 01 00 00 0f ac 04 01 00 00 0f ac 04 01 00  0...............
    00 0f ac 08 00 00 00 00 c4 65 40 00 00 00 00 00  .........e@.....
  backtrace:
    [<00000000bebe439d>] __kmalloc_track_caller+0x1c0/0x330
    [<00000000a349dbe1>] kmemdup+0x28/0x50
    [<0000000075d69baa>] ieee80211_join_mesh+0x6c/0x3b8 [mac80211]
    [<00000000683bb98b>] __cfg80211_join_mesh+0x1e8/0x4f0 [cfg80211]
    [<0000000072cb507f>] nl80211_join_mesh+0x520/0x6b8 [cfg80211]
    [<0000000077e9bcf9>] genl_family_rcv_msg+0x374/0x680
    [<00000000b1bd936d>] genl_rcv_msg+0x78/0x108
    [<0000000022c53788>] netlink_rcv_skb+0xb0/0x1c0
    [<0000000011af8ec9>] genl_rcv+0x34/0x48
    [<0000000069e41f53>] netlink_unicast+0x268/0x2e8
    [<00000000a7517316>] netlink_sendmsg+0x320/0x4c0
    [<0000000069cba205>] ____sys_sendmsg+0x354/0x3a0
    [<00000000e06bab0f>] ___sys_sendmsg+0xd8/0x120
    [<0000000037340728>] __sys_sendmsg+0xa4/0xf8
    [<000000004fed9776>] __arm64_sys_sendmsg+0x44/0x58
    [<000000001c1e5647>] el0_svc_handler+0xd0/0x1a0

Fixes: c80d545da3 (mac80211: Let userspace enable and configure vendor specific path selection.)
Signed-off-by: Remi Pommarel <repk@triplefau.lt>
Link: https://lore.kernel.org/r/20200704135007.27292-1-repk@triplefau.lt
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2020-07-30 10:23:35 +02:00
Chanwoo Choi
27a6971445 PM / devfreq: Fix the wrong end with semicolon
Fix the wrong grammar at the end of code line by using semicolon.

Cc: stable vger.kernel.org
Fixes: 490a421bc5 ("PM / devfreq: Add debugfs support with devfreq_summary file")
Signed-off-by: Chanwoo Choi <cw00.choi@samsung.com>
2020-07-30 17:22:58 +09:00
Chanwoo Choi
0aae11bcde PM / devfreq: Fix indentaion of devfreq_summary debugfs node
The commit 66d0e797bf ("Revert "PM / devfreq: Modify the device name
as devfreq(X) for sysfs"") roll back the device name from 'devfreqX'
to device name explained in DT. After applied commit 66d0e797bf,
the indentation of devfreq_summary debugfs node was broken.

So, fix indentaion of devfreq_summary debugfs node as following:

For example on Exynos5422-based Odroid-XU3 board,
$ cat /sys/kernel/debug/devfreq/devfreq_summary
dev                            parent_dev                     governor        polling_ms  cur_freq_Hz  min_freq_Hz  max_freq_Hz
------------------------------ ------------------------------ --------------- ---------- ------------ ------------ ------------
10c20000.memory-controller     null                           simple_ondemand          0    413000000    165000000    825000000
soc:bus_wcore                  null                           simple_ondemand         50     88700000     88700000    532000000
soc:bus_noc                    soc:bus_wcore                  passive                  0     66600000     66600000    111000000
soc:bus_fsys_apb               soc:bus_wcore                  passive                  0    111000000    111000000    222000000
soc:bus_fsys                   soc:bus_wcore                  passive                  0     75000000     75000000    200000000
soc:bus_fsys2                  soc:bus_wcore                  passive                  0     75000000     75000000    200000000
soc:bus_mfc                    soc:bus_wcore                  passive                  0     83250000     83250000    333000000
soc:bus_gen                    soc:bus_wcore                  passive                  0     88700000     88700000    266000000
soc:bus_peri                   soc:bus_wcore                  passive                  0     66600000     66600000     66600000
soc:bus_g2d                    soc:bus_wcore                  passive                  0     83250000     83250000    333000000
soc:bus_g2d_acp                soc:bus_wcore                  passive                  0            0     66500000    266000000
soc:bus_jpeg                   soc:bus_wcore                  passive                  0            0     75000000    300000000
soc:bus_jpeg_apb               soc:bus_wcore                  passive                  0            0     83250000    166500000
soc:bus_disp1_fimd             soc:bus_wcore                  passive                  0            0    120000000    200000000
soc:bus_disp1                  soc:bus_wcore                  passive                  0            0    120000000    300000000
soc:bus_gscl_scaler            soc:bus_wcore                  passive                  0            0    150000000    300000000
soc:bus_mscl                   soc:bus_wcore                  passive                  0            0     84000000    666000000

Cc: stable@vger.kernel.org
Fixes: 66d0e797bf ("Revert "PM / devfreq: Modify the device name as devfreq(X) for sysfs"")
Signed-off-by: Chanwoo Choi <cw00.choi@samsung.com>
2020-07-30 17:22:58 +09:00
Chanwoo Choi
483d557ee9 PM / devfreq: Clean up the devfreq instance name in sysfs attr
The sysfs attr interface used eithere 'df' or 'devfreq' for devfreq instance
name. In order to keep the consistency and to improve the readabilty,
unify the instance name as 'df'. Add add the missing conditional statement
to prevent the fault.

Signed-off-by: Chanwoo Choi <cw00.choi@samsung.com>
2020-07-30 17:22:57 +09:00
Lukasz Luba
4fc9a0470d memory: samsung: exynos5422-dmc: Add module param to control IRQ mode
The driver can operate in two modes relaying on devfreq monitoring
mechanism which periodically checks the device status or it can use
interrupts when they are provided by loaded Device Tree. The newly
introduced module parameter can be used to choose between devfreq
monitoring and internal interrupts without modifying the Device Tree.
It also sets devfreq monitoring as default when the parameter is not set
(also the case for default when the driver is not built as a module).

Reported-by: Willy Wolff <willy.mh.wolff.ml@gmail.com>
Reviewed-by: Krzysztof Kozlowski <krzk@kernel.org>
Signed-off-by: Lukasz Luba <lukasz.luba@arm.com>
Signed-off-by: Chanwoo Choi <cw00.choi@samsung.com>
2020-07-30 17:22:57 +09:00
Lukasz Luba
74ca9e4610 memory: samsung: exynos5422-dmc: Adjust polling interval and uptreshold
In order to react faster and make better decisions under some workloads,
benchmarking the memory subsystem behavior, adjust the polling interval
and upthreshold value used by the simple_ondemand governor.

Reported-by: Willy Wolff <willy.mh.wolff.ml@gmail.com>
Reviewed-by: Chanwoo Choi <cw00.choi@samsung.com>
Reviewed-by: Krzysztof Kozlowski <krzk@kernel.org>
Signed-off-by: Lukasz Luba <lukasz.luba@arm.com>
Signed-off-by: Chanwoo Choi <cw00.choi@samsung.com>
2020-07-30 17:22:57 +09:00
Chanwoo Choi
ae8eb8ba52 memory: samsung: exynos5422-dmc: Use delayed timer as default
Use delayed timer as default instead of deferrable timer
in order to monitor the DMC status regardless of CPU idle.

Reviewed-by: Krzysztof Kozlowski <krzk@kernel.org>
Reviewed-by: Lukasz Luba <lukasz.luba@arm.com>
Signed-off-by: Chanwoo Choi <cw00.choi@samsung.com>
2020-07-30 17:22:57 +09:00
Chanwoo Choi
4dc3bab868 PM / devfreq: Add support delayed timer for polling mode
Until now, the devfreq driver using polling mode like simple_ondemand
governor have used only deferrable timer for reducing the redundant
power consumption. It reduces the CPU wake-up from idle due to polling mode
which check the status of Non-CPU device.

But, it has a problem for Non-CPU device like DMC device with DMA operation.
Some Non-CPU device need to do monitor continuously regardless of CPU state
in order to decide the proper next status of Non-CPU device.

So, add support the delayed timer for polling mode to support
the repetitive monitoring. The devfreq driver and user can select
the kind of timer on either deferrable and delayed timer.

For example, change the timer type of DMC device
based on Exynos5422-based Odroid-XU3 as following:

- If want to use deferrable timer as following:
echo deferrable > /sys/class/devfreq/10c20000.memory-controller/timer

- If want to use delayed timer as following:
echo delayed > /sys/class/devfreq/10c20000.memory-controller/timer

Reviewed-by: Bartlomiej Zolnierkiewicz <b.zolnierkie@samsung.com>
Reviewed-by: Lukasz Luba <lukasz.luba@arm.com>
Signed-off-by: Chanwoo Choi <cw00.choi@samsung.com>
2020-07-30 17:22:57 +09:00
Enric Balletbo i Serra
ed27952975 dt-bindings: devfreq: rk3399_dmc: Add rockchip,pmu phandle
The Rockchip DMC (Dynamic Memory Interface) needs to access to the PMU
general register files to know the DRAM type, so add a phandle to the
syscon that manages these registers.

Signed-off-by: Enric Balletbo i Serra <enric.balletbo@collabora.com>
Reviewed-by: Chanwoo Choi <cw00.choi@samsung.com>
Acked-by: Rob Herring <robh@kernel.org>
Signed-off-by: Gaël PORTAY <gael.portay@collabora.com>
Acked-by: MyungJoo Ham <myungjoo.ham@samsung.com>
Signed-off-by: Chanwoo Choi <cw00.choi@samsung.com>
2020-07-30 17:22:57 +09:00
Dmitry Osipenko
24948479be PM / devfreq: tegra: Add Dmitry as a maintainer
I was contributing to the NVIDIA Tegra20+ devfreq drivers recently and
want to help keep them working and evolving in the future.

Acked-by: Chanwoo Choi <cw00.choi@samsung.com>
Signed-off-by: Dmitry Osipenko <digetx@gmail.com>
Signed-off-by: Chanwoo Choi <cw00.choi@samsung.com>
2020-07-30 17:22:57 +09:00
Kieran Bingham
ada795966a PM / devfreq: event: Fix trivial spelling
The word 'descriptor' is misspelled throughout the tree.

Fix it up accordingly:
    decriptors -> descriptors

Signed-off-by: Kieran Bingham <kieran.bingham+renesas@ideasonboard.com>
Signed-off-by: Chanwoo Choi <cw00.choi@samsung.com>
2020-07-30 17:22:57 +09:00
Marc Zyngier
63ef91f24f PM / devfreq: rk3399_dmc: Fix kernel oops when rockchip,pmu is absent
Booting a recent kernel on a rk3399-based system (nanopc-t4),
equipped with a recent u-boot and ATF results in an Oops due
to a NULL pointer dereference.

This turns out to be due to the rk3399-dmc driver looking for
an *undocumented* property (rockchip,pmu), and happily using
a NULL pointer when the property isn't there.

Instead, make most of what was brought in with 9173c5ceb0
("PM / devfreq: rk3399_dmc: Pass ODT and auto power down parameters
to TF-A.") conditioned on finding this property in the device-tree,
preventing the driver from exploding.

Cc: stable@vger.kernel.org
Fixes: 9173c5ceb0 ("PM / devfreq: rk3399_dmc: Pass ODT and auto power down parameters to TF-A.")
Signed-off-by: Marc Zyngier <maz@kernel.org>
Signed-off-by: Chanwoo Choi <cw00.choi@samsung.com>
2020-07-30 17:22:57 +09:00
Wei Yongjun
5b6570bbb2 irqchip/imx-intmux: Fix irqdata regs save in imx_intmux_runtime_suspend()
Gcc report warning as follows:

drivers/irqchip/irq-imx-intmux.c:316:29: warning:
 variable 'irqchip_data' set but not used [-Wunused-but-set-variable]
  316 |  struct intmux_irqchip_data irqchip_data;
      |                             ^~~~~~~~~~~~

irqdata regs is stored to this variable on the stack in
imx_intmux_runtime_suspend(), which means a nop. this commit
fix to save regs to the right place.

Fixes: bb403111e0 ("irqchip/imx-intmux: Implement intmux runtime power management")
Reported-by: Hulk Robot <hulkci@huawei.com>
Signed-off-by: Wei Yongjun <weiyongjun1@huawei.com>
Signed-off-by: Marc Zyngier <maz@kernel.org>
Link: https://lore.kernel.org/r/20200729155849.33919-1-weiyongjun1@huawei.com
2020-07-30 09:20:48 +01:00
Rajkumar Manoharan
65ad3ef9fc mac80211: fix warning in 6 GHz IE addition in mesh mode
The commit 24a2042cb2 ("mac80211: add HE 6 GHz Band Capability
element") failed to check device capability before adding HE 6 GHz
capability element. Below warning is reported in 11ac device in mesh.
Fix that by checking device capability at HE 6 GHz cap IE addition
in mesh beacon and association request.

WARNING: CPU: 1 PID: 1897 at net/mac80211/util.c:2878
ieee80211_ie_build_he_6ghz_cap+0x149/0x150 [mac80211]
[ 3138.720358] Call Trace:
[ 3138.720361]  ieee80211_mesh_build_beacon+0x462/0x530 [mac80211]
[ 3138.720363]  ieee80211_start_mesh+0xa8/0xf0 [mac80211]
[ 3138.720365]  __cfg80211_join_mesh+0x122/0x3e0 [cfg80211]
[ 3138.720368]  nl80211_join_mesh+0x3d3/0x510 [cfg80211]

Fixes: 24a2042cb2 ("mac80211: add HE 6 GHz Band Capability element")
Reported-by: Markus Theil <markus.theil@tu-ilmenau.de>
Signed-off-by: Rajkumar Manoharan <rmanohar@codeaurora.org>
Link: https://lore.kernel.org/r/1593656424-18240-1-git-send-email-rmanohar@codeaurora.org
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2020-07-30 10:20:37 +02:00
Kailang Yang
5649625344 ALSA: hda/realtek - Fixed HP right speaker no sound
HP NB right speaker had no sound output.
This platform was connected to I2S Amp for speaker out.(None Realtek I2S Amp IC)
EC need to check codec GPIO1 pin to initial I2S Amp.

Signed-off-by: Kailang Yang <kailang@realtek.com>
Cc: <stable@vger.kernel.org>
Link: https://lore.kernel.org/r/01285f623ac7447187482fb4a8ecaa7c@realtek.com
Signed-off-by: Takashi Iwai <tiwai@suse.de>
2020-07-30 10:15:51 +02:00
Sathish Narasimman
b2cc23398e Bluetooth: Enable RPA Timeout
Enable RPA timeout during bluetooth initialization.
The RPA timeout value is used from hdev, which initialized from
debug_fs

Signed-off-by: Sathish Narasimman <sathish.narasimman@intel.com>
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
2020-07-30 09:34:43 +02:00
Sathish Narasimman
5c49bcce5c Bluetooth: Enable/Disable address resolution during le create conn
In this patch if le_create_conn process is started restrict to
disable address resolution and same is disabled during
le_enh_connection_complete

Signed-off-by: Sathish Narasimman <sathish.narasimman@intel.com>
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
2020-07-30 09:34:43 +02:00
Sathish Narasimman
d03c759e39 Bluetooth: Let controller creates RPA during le create conn
When address resolution is enabled and set_privacy is enabled let's
use own address type as 0x03

Signed-off-by: Sathish Narasimman <sathish.narasimman@intel.com>
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
2020-07-30 09:34:43 +02:00
Sathish Narasimman
b31bc00bfe Bluetooth: Translate additional address type during le_conn
When using controller based address resolution, then the new address
types 0x02 and 0x03 are used. These types need to be converted back into
either public address or random address types.

This patch is specially during LE_CREATE_CONN if using own_add_type as 0x02
or 0x03.

Signed-off-by: Sathish Narasimman <sathish.narasimman@intel.com>
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
2020-07-30 09:34:43 +02:00
Marcel Holtmann
0eee35bdfa Bluetooth: Update resolving list when updating whitelist
When the whitelist is updated, then also update the entries of the
resolving list for devices where IRKs are available.

Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
Signed-off-by: Sathish Narsimman <sathish.narasimman@intel.com>
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
2020-07-30 09:34:42 +02:00
Marcel Holtmann
e1d5723575 Bluetooth: Configure controller address resolution if available
When the LL Privacy support is available, then as part of enabling or
disabling passive background scanning, it is required to set up the
controller based address resolution as well.

Since only passive background scanning is utilizing the whitelist, the
address resolution is now bound to the whitelist and passive background
scanning. All other resolution can be easily done by the host stack.

Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
Signed-off-by: Sathish Narsimman <sathish.narasimman@intel.com>
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
2020-07-30 09:34:42 +02:00
Marcel Holtmann
6540351e6f Bluetooth: Translate additional address type correctly
When using controller based address resolution, then the new address
types 0x02 and 0x03 are used. These types need to be converted back into
either public address or random address types.

Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
Signed-off-by: Sathish Narsimman <sathish.narasimman@intel.com>
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
2020-07-30 09:34:42 +02:00
Andrzej Hajda
76acb5ee76 drm/bridge: lvds-codec: simplify error handling
Using dev_err_probe code has following advantages:
- shorter code,
- recorded defer probe reason for debugging,
- uniform error code logging.

Signed-off-by: Andrzej Hajda <a.hajda@samsung.com>
Reviewed-by: Neil Armstrong <narmstrong@baylibre.com>
Link: https://lore.kernel.org/r/20200713144324.23654-5-a.hajda@samsung.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2020-07-30 09:03:44 +02:00
Andrzej Hajda
a60294d2b0 drm/bridge/sii8620: fix resource acquisition error handling
In case of error during resource acquisition driver should print error
message only in case it is not deferred probe, using dev_err_probe helper
solves the issue. Moreover it records defer probe reason for debugging.

Signed-off-by: Andrzej Hajda <a.hajda@samsung.com>
Reviewed-by: Neil Armstrong <narmstrong@baylibre.com>
Link: https://lore.kernel.org/r/20200713144324.23654-4-a.hajda@samsung.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2020-07-30 09:03:44 +02:00
Andrzej Hajda
d090b70ede driver core: add deferring probe reason to devices_deferred property
/sys/kernel/debug/devices_deferred property contains list of deferred devices.
This list does not contain reason why the driver deferred probe, the patch
improves it.
The natural place to set the reason is dev_err_probe function introduced
recently, ie. if dev_err_probe will be called with -EPROBE_DEFER instead of
printk the message will be attached to a deferred device and printed when user
reads devices_deferred property.

Signed-off-by: Andrzej Hajda <a.hajda@samsung.com>
Reviewed-by: Mark Brown <broonie@kernel.org>
Reviewed-by: Javier Martinez Canillas <javierm@redhat.com>
Reviewed-by: Andy Shevchenko <andy.shevchenko@gmail.com>
Reviewed-by: Rafael J. Wysocki <rafael@kernel.org>
Link: https://lore.kernel.org/r/20200713144324.23654-3-a.hajda@samsung.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2020-07-30 09:03:43 +02:00
Andrzej Hajda
a787e5400a driver core: add device probe log helper
During probe every time driver gets resource it should usually check for
error printk some message if it is not -EPROBE_DEFER and return the error.
This pattern is simple but requires adding few lines after any resource
acquisition code, as a result it is often omitted or implemented only
partially.
dev_err_probe helps to replace such code sequences with simple call,
so code:
	if (err != -EPROBE_DEFER)
		dev_err(dev, ...);
	return err;
becomes:
	return dev_err_probe(dev, err, ...);

Signed-off-by: Andrzej Hajda <a.hajda@samsung.com>
Reviewed-by: Rafael J. Wysocki <rafael@kernel.org>
Reviewed-by: Mark Brown <broonie@kernel.org>
Reviewed-by: Andy Shevchenko <andy.shevchenko@gmail.com>
Link: https://lore.kernel.org/r/20200713144324.23654-2-a.hajda@samsung.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2020-07-30 09:03:43 +02:00
Lukas Wunner
654888327e driver core: Avoid binding drivers to dead devices
Commit 3451a495ef ("driver core: Establish order of operations for
device_add and device_del via bitflag") sought to prevent asynchronous
driver binding to a device which is being removed.  It added a
per-device "dead" flag which is checked in the following code paths:

* asynchronous binding in __driver_attach_async_helper()
*  synchronous binding in device_driver_attach()
* asynchronous binding in __device_attach_async_helper()

It did *not* check the flag upon:

*  synchronous binding in __device_attach()

However __device_attach() may also be called asynchronously from:

deferred_probe_work_func()
  bus_probe_device()
    device_initial_probe()
      __device_attach()

So if the commit's intention was to check the "dead" flag in all
asynchronous code paths, then a check is also necessary in
__device_attach().  Add the missing check.

Fixes: 3451a495ef ("driver core: Establish order of operations for device_add and device_del via bitflag")
Signed-off-by: Lukas Wunner <lukas@wunner.de>
Cc: stable@vger.kernel.org # v5.1+
Cc: Alexander Duyck <alexander.h.duyck@linux.intel.com>
Link: https://lore.kernel.org/r/de88a23a6fe0ef70f7cfd13c8aea9ab51b4edab6.1594214103.git.lukas@wunner.de
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2020-07-30 08:48:34 +02:00
Marek Vasut
7df5081cbf serial: stm32: Add RS485 RTS GPIO control
While the STM32 does support RS485 drive-enable control within the
UART IP itself, some systems have the drive-enable line connected
to a pin which cannot be pinmuxed as RTS. Add support for toggling
the RTS GPIO line using the modem control GPIOs to provide at least
some sort of emulation.

Signed-off-by: Marek Vasut <marex@denx.de>
Cc: Alexandre Torgue <alexandre.torgue@st.com>
Cc: Andy Shevchenko <andy.shevchenko@gmail.com>
Cc: Manivannan Sadhasivam <mani@kernel.org>
Cc: Fabrice Gasnier <fabrice.gasnier@st.com>
Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Cc: linux-stm32@st-md-mailman.stormreply.com
Link: https://lore.kernel.org/r/20200725144947.537007-1-marex@denx.de
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2020-07-30 08:46:22 +02:00
Paul Cercueil
e3ee0e740c usb: common: usb-conn-gpio: Register charger
Register a power supply charger, whose online state depends on whether
the USB role is set to device or not.

This is useful when the USB role is the only way to know if the device
is charging from USB. The API is the standard power supply charger API,
you get a /sys/class/power_supply/xxx/online node which tells you the
state of the charger.

The sole purpose of this is to give userspace applications a way to
know whether or not the charger is plugged.

Signed-off-by: Paul Cercueil <paul@crapouillou.net>
Link: https://lore.kernel.org/r/20200727170413.23131-1-paul@crapouillou.net
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2020-07-30 08:45:24 +02:00
Dhiraj Sharma
d8a0f85d39 staging: qlge: qlge_dbg: removed comment repition
Inside function ql_get_dump comment statement had a repition of word
"to" which I removed and checkpatch.pl ouputs zero error or warnings
now.

Signed-off-by: Dhiraj Sharma <dhiraj.sharma0024@gmail.com>
Link: https://lore.kernel.org/r/20200728182610.2538-1-dhiraj.sharma0024@gmail.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2020-07-30 08:41:40 +02:00
Gustavo A. R. Silva
3e1f8882a9 staging: wfx: Use flex_array_size() helper in memcpy()
Make use of the flex_array_size() helper to calculate the size of a
flexible array member within an enclosing structure.

This helper offers defense-in-depth against potential integer
overflows, while at the same time makes it explicitly clear that
we are dealing with a flexible array member.

Signed-off-by: Gustavo A. R. Silva <gustavoars@kernel.org>
Link: https://lore.kernel.org/r/20200729233557.GA17693@embeddedor
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2020-07-30 08:41:06 +02:00
Aditya Jain
051d2d09de staging: rtl8723bs: Align macro definitions
Adjust spacing in macro definitions to align them and improve
readbility

Signed-off-by: Aditya Jain <aditya.jainadityajain.jain@gmail.com>
Link: https://lore.kernel.org/r/20200729192136.23828-4-aditya.jainadityajain.jain@gmail.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2020-07-30 08:41:06 +02:00
Aditya Jain
0b64587a09 staging: rtl8723bs: Clean up function declations
Clean up multiline function declartions in hal_phy_cfg.h
to improve code readablility

Signed-off-by: Aditya Jain <aditya.jainadityajain.jain@gmail.com>
Link: https://lore.kernel.org/r/20200729192136.23828-3-aditya.jainadityajain.jain@gmail.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2020-07-30 08:41:06 +02:00
Aditya Jain
d737e2891a staging: rtl8723bs: Fix coding style errors
Fixing ERROR: "foo *	bar" should be "foo *bar" in hal_phy_cfg.h
as reported by checkpatch.pl

Signed-off-by: Aditya Jain <aditya.jainadityajain.jain@gmail.com>
Link: https://lore.kernel.org/r/20200729192136.23828-2-aditya.jainadityajain.jain@gmail.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2020-07-30 08:41:05 +02:00
Jingle Wu
873a3a14a4 Input: elan_i2c - add ic type 0x15
The update firmware flow of ic type 0x15 is same with ic type 0x14.

Signed-off-by: Jingle Wu <jingle.wu@emc.com.tw>
Link: https://lore.kernel.org/r/20200730060526.12439-1-jingle.wu@emc.com.tw
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2020-07-29 23:34:36 -07:00
Christoph Hellwig
b2a74d5f9d initramfs: remove clean_rootfs
There is no point in trying to clean up after unpacking the initramfs
failed, as it should never get past the magic number check.  In addition
the current code only removes file that are direct children of the root
entry, which wasn't complete anyway

Fixes: df52092f3c ("fastboot: remove duplicate unpack_to_rootfs()")
Reported-by: Marek Szyprowski <m.szyprowski@samsung.com>
Signed-off-by: Christoph Hellwig <hch@lst.de>
2020-07-30 08:22:48 +02:00
Christoph Hellwig
9ab6b71849 initramfs: remove the populate_initrd_image and clean_rootfs stubs
If initrd support is not enable just print the warning directly instead
of hiding the fact that we just failed behind two stub functions.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Acked-by: Linus Torvalds <torvalds@linux-foundation.org>
2020-07-30 08:22:47 +02:00
Christoph Hellwig
9acc17baf1 initrd: mark initrd support as deprecated
The classic initial ramdisk has been replaced by the much more
flexible and efficient initramfs a long time.  Warn about it being
removed soon.

Includes a spelling fix from Colin Ian King <colin.king@canonical.com>.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Acked-by: Linus Torvalds <torvalds@linux-foundation.org>
2020-07-30 08:22:47 +02:00
Christoph Hellwig
f0ea68f139 initrd: mark init_linuxrc as __init
Signed-off-by: Christoph Hellwig <hch@lst.de>
Acked-by: Linus Torvalds <torvalds@linux-foundation.org>
2020-07-30 08:22:47 +02:00
Christoph Hellwig
bef1732996 initrd: switch initrd loading to struct file based APIs
There is no good reason to mess with file descriptors from in-kernel
code, switch the initrd loading to struct file based read and writes
instead.

Also Pass an explicit offset instead of ->f_pos, and to make that easier,
use file scope file structs and offsets everywhere except for
identify_ramdisk_image instead of the current strange mix.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Acked-by: Linus Torvalds <torvalds@linux-foundation.org>
2020-07-30 08:22:47 +02:00
Christoph Hellwig
899ac10cc0 initrd: remove the BLKFLSBUF call in handle_initrd
BLKFLSBUF used to be overloaded for the ramdisk driver to free the whole
ramdisk, which was completely different behavior compared to all other
drivers.  But this magic overload got removed in commit ff26956875
("brd: remove support for BLKFLSBUF"), so this call is entirely
pointless now.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Acked-by: Linus Torvalds <torvalds@linux-foundation.org>
2020-07-30 08:22:47 +02:00
Christoph Hellwig
c8376994c8 initrd: remove support for multiple floppies
Remove the special handling for multiple floppies in the initrd code.
No one should be using floppies for booting these days. (famous last
words..)

Includes a spelling fix from Colin Ian King <colin.king@canonical.com>.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Acked-by: Linus Torvalds <torvalds@linux-foundation.org>
2020-07-30 08:22:33 +02:00
Valentin Schneider
f259eab3ea cpufreq: make schedutil the default for arm and arm64
schedutil is already a hard-requirement for EAS, which has lead to making
it default on arm (when CONFIG_BIG_LITTLE), see:

  commit 8fdcca8e25 ("cpufreq: Select schedutil when using big.LITTLE")

One thing worth pointing out is that schedutil isn't only relevant for
asymmetric CPU capacity systems; for instance, schedutil is the only
governor that honours util-clamp performance requests. Another good example
of this is x86 switching to using it by default in:

  commit a00ec3874e ("cpufreq: intel_pstate: Select schedutil as the default governor")

Arguably it should be made the default for all architectures, but it seems
better to wait for them to also gain frequency invariance powers. Make it
the default for arm && arm64 for now.

Signed-off-by: Valentin Schneider <valentin.schneider@arm.com>
Signed-off-by: Ionela Voinescu <ionela.voinescu@arm.com>
Cc: Catalin Marinas <catalin.marinas@arm.com>
Cc: Will Deacon <will@kernel.org>
Cc: Russell King <linux@armlinux.org.uk>
Cc: Rafael J. Wysocki <rjw@rjwysocki.net>
Cc: Viresh Kumar <viresh.kumar@linaro.org>
Signed-off-by: Viresh Kumar <viresh.kumar@linaro.org>
2020-07-30 11:40:29 +05:30
Viresh Kumar
292072c387 cpufreq: cached_resolved_idx can not be negative
It is not possible for cached_resolved_idx to be invalid here as the
cpufreq core always sets index to a positive value.

Change its type to unsigned int and fix qcom usage a bit.

Signed-off-by: Viresh Kumar <viresh.kumar@linaro.org>
2020-07-30 11:40:16 +05:30
Sumit Gupta
df320f8935 cpufreq: Add Tegra194 cpufreq driver
Add support for CPU frequency scaling on Tegra194. The frequency
of each core can be adjusted by writing a clock divisor value to
a MSR on the core. The range of valid divisors is queried from
the BPMP.

Signed-off-by: Mikko Perttunen <mperttunen@nvidia.com>
Signed-off-by: Sumit Gupta <sumitg@nvidia.com>
Signed-off-by: Viresh Kumar <viresh.kumar@linaro.org>
2020-07-30 10:57:51 +05:30
Sumit Gupta
9b25d3f425 dt-bindings: arm: Add NVIDIA Tegra194 CPU Complex binding
Add device-tree binding documentation to represent Tegra194
CPU Complex with compatible string under 'cpus' node. This
can be used by drivers like cpufreq which don't have their
node or CPU Complex node to bind to. Also, documenting
'nvidia,bpmp' property which points to BPMP device.

Signed-off-by: Sumit Gupta <sumitg@nvidia.com>
Reviewed-by: Rob Herring <robh@kernel.org>
Signed-off-by: Viresh Kumar <viresh.kumar@linaro.org>
2020-07-30 10:57:50 +05:30
Walter Lozano
2782ef34ed cpufreq: imx: Select NVMEM_IMX_OCOTP
When probing cpufreq for iMX6 the values in the efuse needs to be
read which requires NVMEM_IMX_OCOTP. If this option is not enabled,
the probe will be deferred forever and cpufreq won't be available.

This patch forces the selection of the required configuration option.

Signed-off-by: Walter Lozano <walter.lozano@collabora.com>
Signed-off-by: Viresh Kumar <viresh.kumar@linaro.org>
2020-07-30 10:57:50 +05:30