Commit Graph

966273 Commits

Author SHA1 Message Date
Zheng Yongjun
35c52c5c88 net: realtek: Remove set but not used variable
Fixes gcc '-Wunused-but-set-variable' warning:

drivers/net/ethernet/realtek/8139cp.c: In function cp_tx_timeout:
drivers/net/ethernet/realtek/8139cp.c:1242:6: warning: variable ‘rc’ set but not used [-Wunused-but-set-variable]

`rc` is never used, so remove it.

Signed-off-by: Zheng Yongjun <zhengyongjun3@huawei.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2020-09-23 13:20:29 -07:00
Luo bin
b1b6c11051 hinic: improve the comments of function header
Fix the warnings about function header comments when building hinic
driver with "W=1" option.

Signed-off-by: Luo bin <luobin9@huawei.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2020-09-23 13:20:29 -07:00
David S. Miller
6d772f328d Merge git://git.kernel.org/pub/scm/linux/kernel/git/bpf/bpf-next
Alexei Starovoitov says:

====================
pull-request: bpf-next 2020-09-23

The following pull-request contains BPF updates for your *net-next* tree.

We've added 95 non-merge commits during the last 22 day(s) which contain
a total of 124 files changed, 4211 insertions(+), 2040 deletions(-).

The main changes are:

1) Full multi function support in libbpf, from Andrii.

2) Refactoring of function argument checks, from Lorenz.

3) Make bpf_tail_call compatible with functions (subprograms), from Maciej.

4) Program metadata support, from YiFei.

5) bpf iterator optimizations, from Yonghong.
====================

Signed-off-by: David S. Miller <davem@davemloft.net>
2020-09-23 13:11:11 -07:00
Rikard Falkeborn
0854fa22b9 counter: microchip-tcb-capture: Constify mchp_tc_ops
The only usage of mchp_tc_ops is to assign its address to the ops field
in the counter_device struct which is a const pointer. Make it const to
allow the compiler to put it in read-only memory.

Signed-off-by: Rikard Falkeborn <rikard.falkeborn@gmail.com>
Acked-by: William Breathitt Gray <vilhelm.gray@gmail.com>
Link: https://lore.kernel.org/r/20200922201941.41328-1-rikard.falkeborn@gmail.com
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2020-09-23 20:53:58 +01:00
Jiri Olsa
dc3652d3f0 tools resolve_btfids: Always force HOSTARCH
Seth reported problem with cross builds, that fail
on resolve_btfids build, because we are trying to
build it on cross build arch.

Fixing this by always forcing the host arch.

Reported-by: Seth Forshee <seth.forshee@canonical.com>
Signed-off-by: Jiri Olsa <jolsa@kernel.org>
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
Acked-by: Andrii Nakryiko <andriin@fb.com>
Link: https://lore.kernel.org/bpf/20200923185735.3048198-2-jolsa@kernel.org
2020-09-23 12:43:04 -07:00
Jiri Olsa
017dab341e bpf: Check CONFIG_BPF option for resolve_btfids
Currently all the resolve_btfids 'users' are under CONFIG_BPF
code, so if we have CONFIG_BPF disabled, resolve_btfids will
fail, because there's no data to resolve.

Disabling resolve_btfids if there's CONFIG_BPF disabled,
so we won't fail such builds.

Suggested-by: Andrii Nakryiko <andriin@fb.com>
Signed-off-by: Jiri Olsa <jolsa@kernel.org>
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
Acked-by: Andrii Nakryiko <andriin@fb.com>
Link: https://lore.kernel.org/bpf/20200923185735.3048198-1-jolsa@kernel.org
2020-09-23 12:43:04 -07:00
David S. Miller
1a26e88d53 linux-can-next-for-5.10-20200923
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Merge tag 'linux-can-next-for-5.10-20200923' of git://git.kernel.org/pub/scm/linux/kernel/git/mkl/linux-can-next

Marc Kleine-Budde says:

====================
pull-request: can-next 2020-09-23

this is a pull request of 20 patches for net-next.

The complete series target the flexcan driver and is created by Joakim
Zhang and me.

The first six patches are cleanup (sort include files alphabetically,
remove stray empty line, get rid of long lines) and adding more
registers and documentation (registers and wakeup interrupt).

Then in two patches the transceiver regulator is made optional, and a
check for maximum transceiver bitrate is added.

Then the ECC support for HW thats supports this is added.

The next three patches improve suspend and low power mode handling.

Followed by six patches that add CAN-FD support and CAN-FD related
features.

The last two patches add support for the flexcan IP core on the imx8qm
and lx2160ar1.
====================

Signed-off-by: David S. Miller <davem@davemloft.net>
2020-09-23 12:09:08 -07:00
David S. Miller
40fe2e0db7 Merge branch 's390-qeth-next'
Julian Wiedmann says:

====================
s390/qeth: updates 2020-09-23

please apply the following patch series for qeth to netdev's net-next tree.

This brings all sorts of cleanups. Highlights are more code sharing in
the init/teardown paths, and more fine-grained rollback on errors during
initialization (instead of a full-blown teardown).
====================

Signed-off-by: David S. Miller <davem@davemloft.net>
2020-09-23 12:07:55 -07:00
Julian Wiedmann
58fa357576 s390/qeth: remove forward declarations in L2 code
Shuffle some code around (primarily all the discipline-related stuff) to
get rid of all the unnecessary forward declarations.

Signed-off-by: Julian Wiedmann <jwi@linux.ibm.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2020-09-23 12:07:54 -07:00
Julian Wiedmann
f2bcf9dd3e s390/qeth: consolidate teardown code
Clarify which discipline-specific steps are needed to roll back after
error in qeth_l?_set_online(), and which are common to roll back
from qeth_hardsetup_card().

Some steps (cancelling the RX modeset, draining the TX queues) are only
necessary if the netdev was potentially UP before, so move them to the
common qeth_set_offline().

Signed-off-by: Julian Wiedmann <jwi@linux.ibm.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2020-09-23 12:07:54 -07:00
Julian Wiedmann
b7ea041b2e s390/qeth: consolidate online code
Move duplicated code from the disciplines into the core path.

Signed-off-by: Julian Wiedmann <jwi@linux.ibm.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2020-09-23 12:07:54 -07:00
Julian Wiedmann
7fb7fe5c7b s390/qeth: cancel cmds earlier during teardown
Originators of cmd IO typically hold the rtnl or conf_mutex to protect
against a concurrent teardown.
Since qeth_set_offline() already holds the conf_mutex, the main reason
why we still care about cancelling pending cmds is so that they release
the rtnl when we need it ourselves.

So move this step a little earlier into the teardown sequence.

Signed-off-by: Julian Wiedmann <jwi@linux.ibm.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2020-09-23 12:07:54 -07:00
Julian Wiedmann
f3380b1edc s390/qeth: tighten ucast IP locking
The programming of ucast IPs via qeth_l3_modify_ip() is driven
independently from any of our typical locking mechanisms (eg. detaching
the netdevice, or holding the conf_mutex).
So when we inspect the card state to check whether the required cmd IO
should be deferred, there is no protection against concurrent state
changes.

But by slightly re-ordering the teardown sequence, we can rely on the
ip_lock to sufficiently serialize things:

1. when running concurrently to qeth_l3_set_online(), any instance of
   qeth_l3_modify_ip() that aquires the ip_lock _after_
   qeth_l3_recover_ip() will observe the state as CARD_STATE_SOFTSETUP
   and not defer the IO.
2. when running concurrently to qeth_l3_set_offline(), any instance of
   qeth_l3_modify_ip() that aquires the ip_lock _after_
   qeth_l3_clear_ip_htable() will observe the state as CARD_STATE_DOWN
   and defer the IO.

These guarantees in mind, we can now drop the conf_mutex from the
qeth_l3_modify_rxip_vipa() wrapper.

Signed-off-by: Julian Wiedmann <jwi@linux.ibm.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2020-09-23 12:07:54 -07:00
Julian Wiedmann
ab29c480b1 s390/qeth: replace deprecated simple_stroul()
Convert the remaining occurences in sysfs code to kstrtouint().

While at it move some input parsing out of locked sections, replace an
open-coded clamp() and remove some unnecessary run-time checks for
ipatoe->mask_bits that are already enforced when creating the object.

Signed-off-by: Julian Wiedmann <jwi@linux.ibm.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2020-09-23 12:07:54 -07:00
Julian Wiedmann
bcdfdf0047 s390/qeth: clean up string ops in qeth_l3_parse_ipatoe()
Indicate the max number of to-be-parsed characters, and avoid copying
the address sub-string.

Signed-off-by: Julian Wiedmann <jwi@linux.ibm.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2020-09-23 12:07:54 -07:00
Julian Wiedmann
d6e6426f69 s390/qeth: relax locking for ipato config data
card->ipato is currently protected by the conf_mutex. But most users
also hold the ip_lock - in particular qeth_l3_add_ip().

So slightly expand the sections under ip_lock in a few places (to
effectively cover a few error & no-op cases), and then drop the
conf_mutex where it's no longer needed.

Signed-off-by: Julian Wiedmann <jwi@linux.ibm.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2020-09-23 12:07:54 -07:00
Julian Wiedmann
668e225126 s390/qeth: don't init refcount twice for mcast IPs
mcast IP objects are allocated within qeth_l3_add_mcast_rtnl(),
with .ref_counter already set to 1 via qeth_l3_init_ipaddr().

Signed-off-by: Julian Wiedmann <jwi@linux.ibm.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2020-09-23 12:07:54 -07:00
Marc Kleine-Budde
bf253e6bf6
spi: spi-imx: spi_imx_transfer(): add support for effective_speed_hz
This patch implementes the reporting of the effectivly used speed_hz for the
transfer by setting tfr->effective_speed_hz.

See the following patch, which adds this feature to the SPI core for more
information:

    5d7e2b5ed5 spi: core: allow reporting the effectivly used speed_hz for a transfer

Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
Link: https://lore.kernel.org/r/20200917202420.1914104-1-mkl@pengutronix.de
Signed-off-by: Mark Brown <broonie@kernel.org>
2020-09-23 19:59:32 +01:00
Lorenz Bauer
0789e13bc3 bpf: Explicitly size compatible_reg_types
Arrays with designated initializers have an implicit length of the highest
initialized value plus one. I used this to ensure that newly added entries
in enum bpf_reg_type get a NULL entry in compatible_reg_types.

This is difficult to understand since it requires knowledge of the
peculiarities of designated initializers. Use __BPF_ARG_TYPE_MAX to size
the array instead.

Suggested-by: Alexei Starovoitov <ast@kernel.org>
Signed-off-by: Lorenz Bauer <lmb@cloudflare.com>
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
Acked-by: Andrii Nakryiko <andriin@fb.com>
Link: https://lore.kernel.org/bpf/20200923160156.80814-1-lmb@cloudflare.com
2020-09-23 11:46:46 -07:00
Zheng Yongjun
46237bf3ee net: microchip: Make lan743x_pm_suspend function return right value
drivers/net/ethernet/microchip/lan743x_main.c: In function lan743x_pm_suspend:

`ret` is set but not used. In fact, `pci_prepare_to_sleep` function value should
be the right value of `lan743x_pm_suspend` function, therefore, fix it.

Signed-off-by: Zheng Yongjun <zhengyongjun3@huawei.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2020-09-23 11:45:44 -07:00
Chaitanya Kulkarni
46d2613eae nvme-core: don't use NVME_NSID_ALL for command effects and supported log
In the function nvme_get_effects_log() it uses NVME_NSID_ALL which has
namespace scope. The command effect log page is controller specific.

Replace NVME_NSID_ALL with 0x00 which specifies the controller scope
instead of namespace scope.

Fixes: 84fef62d13 ("nvme: check admin passthru command effects")
Link: https://bugzilla.kernel.org/show_bug.cgi?id=209287
Reported-by: Huai-Cheng Kuo <hh81478072@gmail.com>
Signed-off-by: Chaitanya Kulkarni <chaitanya.kulkarni@wdc.com>
Signed-off-by: Christoph Hellwig <hch@lst.de>
2020-09-23 20:01:47 +02:00
Mark Brown
bbd59df075
Merge series "ASoC: Intel: sdw machine driver updates for 5.10" from Kai Vehmanen <kai.vehmanen@linux.intel.com>:
Series including fixes and improvements for Intel SoundWire
machine drivers.

Bard Liao (1):
  ASoC: Intel: add support for new SoundWire hardware layout on TGL

Pierre-Louis Bossart (4):
  ASoC: Intel: sof_sdw: remove ternary operator
  ASoC: Intel: add codec name prefix to ACPI machine description
  ASoC: Intel: sof_sdw: remove hard-coded codec_conf table
  ASoC: Intel: sof_sdw_rt700: add codec prefix

Rander Wang (1):
  ASOC: Intel: sof_sdw: restore playback functionality with max98373
    amps

 include/sound/soc-acpi.h                      |   2 +
 sound/soc/intel/boards/sof_sdw.c              | 170 +++++++++---------
 sound/soc/intel/boards/sof_sdw_common.h       |   3 +
 sound/soc/intel/boards/sof_sdw_max98373.c     |  36 +++-
 sound/soc/intel/boards/sof_sdw_rt700.c        |   6 +-
 .../intel/common/soc-acpi-intel-cml-match.c   |  10 ++
 .../intel/common/soc-acpi-intel-cnl-match.c   |   1 +
 .../intel/common/soc-acpi-intel-icl-match.c   |   6 +
 .../intel/common/soc-acpi-intel-tgl-match.c   |  67 +++++++
 9 files changed, 216 insertions(+), 85 deletions(-)

--
2.27.0
2020-09-23 18:48:04 +01:00
Dan Murphy
3121420cf9
ASoC: tas2770: Remove unused variables
Remove unused variables in the private struct and the code as these
variables are initially set and then there is no additional code
utilizing these variables.

Signed-off-by: Dan Murphy <dmurphy@ti.com>
Link: https://lore.kernel.org/r/20200923132600.10652-6-dmurphy@ti.com
Signed-off-by: Mark Brown <broonie@kernel.org>
2020-09-23 18:48:03 +01:00
Dan Murphy
dd7d905206
ASoC: tas2770: Remove ti,asi-format code
Remove the code to support the asi-format binding property. The code
does nothing except read the property and set a variable. No additional
action is taken except to reset the variable. The property is supposed
to set the rising or falling RX edge detection of the SBCLK but this
edge detection is done by checking the DAI_FMT_INV_MASK.

Signed-off-by: Dan Murphy <dmurphy@ti.com>
Link: https://lore.kernel.org/r/20200923132600.10652-5-dmurphy@ti.com
Signed-off-by: Mark Brown <broonie@kernel.org>
2020-09-23 18:48:02 +01:00
Dan Murphy
c0a30e2e07
ASoC: tas2770: Set regcache when shutting down and waking device
Set the regcache to cache data and mark cache as dirty when the device
is shutdown when suspend is called. When the device is woken up then
sync the cache and set to not caching the data.

Signed-off-by: Dan Murphy <dmurphy@ti.com>
Link: https://lore.kernel.org/r/20200923132600.10652-3-dmurphy@ti.com
Signed-off-by: Mark Brown <broonie@kernel.org>
2020-09-23 18:48:01 +01:00
Dan Murphy
5d0b9dfe0d
ASoC: tas2770: Add shutdown capability via a GPIO
Add the hardware shutdown mechanism to shutdown and wake up the device
via a GPIO.

Signed-off-by: Dan Murphy <dmurphy@ti.com>
Link: https://lore.kernel.org/r/20200923132600.10652-2-dmurphy@ti.com
Signed-off-by: Mark Brown <broonie@kernel.org>
2020-09-23 18:48:01 +01:00
Dan Murphy
29d7b36ce9
dt-bindings: tas2770: Add shutdown gpio property
Add the shutdown-gpios property to the yaml to define the GPIO that can
be used to place the device in shutdown mode or wake the device up.

Signed-off-by: Dan Murphy <dmurphy@ti.com>
Link: https://lore.kernel.org/r/20200923132600.10652-1-dmurphy@ti.com
Signed-off-by: Mark Brown <broonie@kernel.org>
2020-09-23 18:48:00 +01:00
Pierre-Louis Bossart
a3f18f82a2
ASoC: Intel: hda_dsp_common: use static function in conditional block
cppcheck reports the following warning:

sound/soc/intel/boards/hda_dsp_common.c:17:0: style: The function
'hda_dsp_hdmi_pcm_handle' is never used. [unusedFunction]

Fix by moving to static inside compilation block.

Signed-off-by: Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com>
Reviewed-by: Jaska Uimonen <jaska.uimonen@intel.com>
Signed-off-by: Kai Vehmanen <kai.vehmanen@linux.intel.com>
Link: https://lore.kernel.org/r/20200923072939.3100468-1-kai.vehmanen@linux.intel.com
Signed-off-by: Mark Brown <broonie@kernel.org>
2020-09-23 18:47:59 +01:00
Rander Wang
7cc3b56f73
ASOC: Intel: sof_sdw: restore playback functionality with max98373 amps
The Max98373 amplifier provides I/V feedback information, which keeps
a DAPM path active even when there is no playback happening. This
prevents entry in low-power mode. Rather than adding new controls and
require UCM/user interaction, the method previously applied is to
enable/disable the Speaker pin during the dailink trigger operations.

Recent changes in the SoundWire stream management moved the stream
trigger to the dailink trigger. This change removed the Maxim-specific
pin handling and resulted in a regression. This patch restores
functionality by combining the SoundWire stream trigger with the pin
enable/disable.

Fixes: ae3a3918ed ('ASoC: Intel: sof_sdw: add dailink .trigger callback')
Fixes: 06998d49bc ('ASoC: Intel: sof_sdw: add dailink .prepare and .hw_free callback')
Signed-off-by: Rander Wang <rander.wang@intel.com>
Signed-off-by: Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com>
Reviewed-by: Guennadi Liakhovetski <guennadi.liakhovetski@linux.intel.com>
Reviewed-by: Ranjani Sridharan <ranjani.sridharan@linux.intel.com>
Reviewed-by: Keyon Jie <yang.jie@linux.intel.com>
Signed-off-by: Kai Vehmanen <kai.vehmanen@linux.intel.com>
Link: https://lore.kernel.org/r/20200923080514.3242858-2-kai.vehmanen@linux.intel.com
Signed-off-by: Mark Brown <broonie@kernel.org>
2020-09-23 18:13:17 +01:00
Bard Liao
e787f5b5b1
ASoC: Intel: add support for new SoundWire hardware layout on TGL
The creativity of hardware folks is endless, with a complete
permutation of rt711 (was link0 now link1), rt1308 (was link1 now
link2) and rt715 (was link3 now link0).

Someday we will get all this information from platform firmware, for
now let's add the mapping table.

Signed-off-by: Bard Liao <yung-chuan.liao@linux.intel.com>
Signed-off-by: Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com>
Reviewed-by: Bard Liao <yung-chuan.liao@linux.intel.com>
Reviewed-by: Guennadi Liakhovetski <guennadi.liakhovetski@linux.intel.com>
Signed-off-by: Kai Vehmanen <kai.vehmanen@linux.intel.com>
Link: https://lore.kernel.org/r/20200923080514.3242858-7-kai.vehmanen@linux.intel.com
Signed-off-by: Mark Brown <broonie@kernel.org>
2020-09-23 18:13:16 +01:00
Pierre-Louis Bossart
fbcc27d181
ASoC: Intel: sof_sdw_rt700: add codec prefix
Somehow for this codec we never used any prefix for the controls,
likely because the test platform has a single SoundWire device.

Follow the convention and use the codec prefix across the board to
avoid possible conflicts.

Signed-off-by: Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com>
Reviewed-by: Bard Liao <yung-chuan.liao@linux.intel.com>
Reviewed-by: Guennadi Liakhovetski <guennadi.liakhovetski@linux.intel.com>
Signed-off-by: Kai Vehmanen <kai.vehmanen@linux.intel.com>
Link: https://lore.kernel.org/r/20200923080514.3242858-6-kai.vehmanen@linux.intel.com
Signed-off-by: Mark Brown <broonie@kernel.org>
2020-09-23 18:13:15 +01:00
Pierre-Louis Bossart
23c8aa3eba
ASoC: Intel: sof_sdw: remove hard-coded codec_conf table
Now that the ACPI machine params provide all the information needed,
allocate the card codec_conf dynamically and set .dlc and
.prefix_name.

Signed-off-by: Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com>
Reviewed-by: Bard Liao <yung-chuan.liao@linux.intel.com>
Reviewed-by: Guennadi Liakhovetski <guennadi.liakhovetski@linux.intel.com>
Signed-off-by: Kai Vehmanen <kai.vehmanen@linux.intel.com>
Link: https://lore.kernel.org/r/20200923080514.3242858-5-kai.vehmanen@linux.intel.com
Signed-off-by: Mark Brown <broonie@kernel.org>
2020-09-23 18:13:14 +01:00
Pierre-Louis Bossart
f93808308a
ASoC: Intel: add codec name prefix to ACPI machine description
The current SOF machine driver adds a name prefix for each codec,
mainly to differentiate ALSA controls for left and right amplifiers.

This is a good idea, but the machine driver duplicates some of the
information that already exists in ACPI descriptors, so add those
prefixes there. Follow-up patches will make use of the information
encoded in these tables and remove duplication.

Signed-off-by: Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com>
Reviewed-by: Bard Liao <yung-chuan.liao@linux.intel.com>
Reviewed-by: Guennadi Liakhovetski <guennadi.liakhovetski@linux.intel.com>
Signed-off-by: Kai Vehmanen <kai.vehmanen@linux.intel.com>
Link: https://lore.kernel.org/r/20200923080514.3242858-4-kai.vehmanen@linux.intel.com
Signed-off-by: Mark Brown <broonie@kernel.org>
2020-09-23 18:13:13 +01:00
Pierre-Louis Bossart
f1bf9a6b4e
ASoC: Intel: sof_sdw: remove ternary operator
cppcheck reports the following warning:

sound/soc/intel/boards/sof_sdw.c:866:46: style: Clarify calculation
precedence for '&' and '?'. [clarifyCalculation]
 hdmi_num = sof_sdw_quirk & SOF_SDW_TGL_HDMI ?
                                             ^

There's no reason to use the ternary operator here, we might as well
use a regular if-else construct.

Signed-off-by: Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com>
Reviewed-by: Jaska Uimonen <jaska.uimonen@intel.com>
Reviewed-by: Kai Vehmanen <kai.vehmanen@linux.intel.com>
Signed-off-by: Kai Vehmanen <kai.vehmanen@linux.intel.com>
Link: https://lore.kernel.org/r/20200923080514.3242858-3-kai.vehmanen@linux.intel.com
Signed-off-by: Mark Brown <broonie@kernel.org>
2020-09-23 18:13:12 +01:00
Linus Torvalds
79a1971c5f mm: move the copy_one_pte() pte_present check into the caller
This completes the split of the non-present and present pte cases by
moving the check for the source pte being present into the single
caller, which also means that we clearly separate out the very different
return value case for a non-present pte.

The present pte case currently always succeeds.

This is a pure code re-organization with no semantic change: the intent
is to make it much easier to add a new return case to the present pte
case for when we do early COW at page table copy time.

This was split out from the previous commit simply to make it easy to
visually see that there were no semantic changes from this code
re-organization.

Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2020-09-23 10:04:16 -07:00
Linus Torvalds
df3a57d1f6 mm: split out the non-present case from copy_one_pte()
This is a purely mechanical split of the copy_one_pte() function.  It's
not immediately obvious when looking at the diff because of the
indentation change, but the way to see what is going on in this commit
is to use the "-w" flag to not show pure whitespace changes, and you see
how the first part of copy_one_pte() is simply lifted out into a
separate function.

And since the non-present case is marked unlikely, don't make the new
function be inlined.  Not that gcc really seems to care, since it looks
like it will inline it anyway due to the whole "single callsite for
static function" logic.  In fact, code generation with the function
split is almost identical to before.  But not marking it inline is the
right thing to do.

This is pure prep-work and cleanup for subsequent changes.

Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2020-09-23 09:56:59 -07:00
Christoph Hellwig
1fb1a2ad75 block: mark blkdev_get static
There are no users outside the core block code left now.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
2020-09-23 10:43:19 -06:00
Christoph Hellwig
36daaa98f7 PM: mm: cleanup swsusp_swap_check
Use blkdev_get_by_dev instead of bdget + blkdev_get.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Acked-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
2020-09-23 10:43:19 -06:00
Christoph Hellwig
21bd900572 mm: split swap_type_of
swap_type_of is used for two entirely different purposes:

 (1) check what swap type a given device/offset corresponds to
 (2) find the first available swap device that can be written to

Mixing both in a single function creates an unreadable mess.  Create two
separate functions instead, and switch both to pass a dev_t instead of
a struct block_device to further simplify the code.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
2020-09-23 10:43:19 -06:00
Christoph Hellwig
bb3247a399 PM: rewrite is_hibernate_resume_dev to not require an inode
Just check the dev_t to help simplifying the code.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Acked-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Acked-by: Pavel Machek <pavel@ucw.cz>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
2020-09-23 10:43:19 -06:00
Christoph Hellwig
ef16e1d98c mm: cleanup claim_swapfile
Use blkdev_get_by_dev instead of bdgrab + blkdev_get.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
2020-09-23 10:43:19 -06:00
Christoph Hellwig
e455ed2290 ocfs2: cleanup o2hb_region_dev_store
Use blkdev_get_by_dev instead of igrab (aka open coded bdgrab) +
blkdev_get.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Joseph Qi <joseph.qi@linux.alibaba.com>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
2020-09-23 10:43:19 -06:00
Christoph Hellwig
841ab72cb5 dasd: cleanup dasd_scan_partitions
Use blkdev_get_by_dev instead of bdget_disk + blkdev_get.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Stefan Haberland <sth@linux.ibm.com>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
2020-09-23 10:43:19 -06:00
Christoph Hellwig
5a56ad7882 raw: don't keep unopened block device around
Turn binding into a normal dev_t as the struct block device doesn't
buy us anything and use blkdev_open_by_dev to actually open it.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
2020-09-23 10:43:19 -06:00
Christoph Hellwig
0fc66c9d63 zram: cleanup backing_dev_store
Use blkdev_get_by_dev instead of bdgrab + blkdev_get.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
2020-09-23 10:43:19 -06:00
Christoph Hellwig
b8d954849c pktcdvd: use blkdev_get_by_dev instead of open coding it
Replace bdget + blkdev_get by blkdev_get_by_dev.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
2020-09-23 10:43:19 -06:00
Christoph Hellwig
2d9e28a9a1 pktcdvd: remove the if 0'ed pkt_start_recovery function
Remove code which has been dead since the initial commit.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
2020-09-23 10:43:19 -06:00
Christoph Hellwig
478162821d block: cleanup blkdev_bszset
Use blkdev_get_by_dev instead of bdgrab + blkdev_get.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
2020-09-23 10:43:19 -06:00
Christoph Hellwig
9301fe7343 block: cleanup partition scanning in register_disk
Use blkdev_get_by_dev instead of open coding it using bdget_disk +
blkdev_get, and split the code to read the partition table into a
separate helper to make it a little more obvious.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
2020-09-23 10:43:19 -06:00
Christoph Hellwig
38430f0876 block: move the NEED_PART_SCAN flag to struct gendisk
We can only scan for partitions on the whole disk, so move the flag
from struct block_device to struct gendisk.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
2020-09-23 10:43:18 -06:00