Commit Graph

966983 Commits

Author SHA1 Message Date
Saravana Kannan
7b337cb3eb driver core: Add fwnode link support
Add support for creating supplier-consumer links between fwnodes.  It is
intended for internal use the driver core and generic firmware support
code (eg. Device Tree, ACPI), so it is simple by design and the API
provided is limited.

Acked-by: Rob Herring <robh@kernel.org>
Signed-off-by: Saravana Kannan <saravanak@google.com>
Link: https://lore.kernel.org/r/20201121020232.908850-9-saravanak@google.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2020-12-09 19:10:21 +01:00
Saravana Kannan
01bb86b380 driver core: Add fwnode_init()
There are multiple locations in the kernel where a struct fwnode_handle
is initialized. Add fwnode_init() so that we have one way of
initializing a fwnode_handle.

Acked-by: Rob Herring <robh@kernel.org>
Signed-off-by: Saravana Kannan <saravanak@google.com>
Link: https://lore.kernel.org/r/20201121020232.908850-8-saravanak@google.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2020-12-09 19:10:20 +01:00
Saravana Kannan
c84b90909e Revert "driver core: fw_devlink: Add support for batching fwnode parsing"
This reverts commit 716a7a2596.

The fw_devlink_pause/resume() APIs added by the commit being reverted
were a first cut attempt at optimizing boot time. But these APIs don't
fully solve the problem and are very fragile (can only be used for the
top level devices being added). This series replaces them with a much
better optimization that works for all device additions and also has the
benefit of reducing the complexity of the firmware (DT, EFI) specific
code and abstracting out common code to driver core.

Signed-off-by: Saravana Kannan <saravanak@google.com>
Link: https://lore.kernel.org/r/20201121020232.908850-7-saravanak@google.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2020-12-09 19:10:20 +01:00
Saravana Kannan
087ad763c1 Revert "of: platform: Batch fwnode parsing when adding all top level devices"
This reverts commit 93d2e4322a.

The fw_devlink_pause/resume() optimization attempt is getting replaced
with a much more robust optimization by the end of this series. So, stop
using those APIs.

Acked-by: Rob Herring <robh@kernel.org>
Signed-off-by: Saravana Kannan <saravanak@google.com>
Link: https://lore.kernel.org/r/20201121020232.908850-6-saravanak@google.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2020-12-09 19:10:20 +01:00
Saravana Kannan
999032ece3 Revert "driver core: Remove check in driver_deferred_probe_force_trigger()"
This reverts commit fefcfc9687.

The reverted commit is fixing commit 716a7a2596 ("driver core:
fw_devlink: Add support for batching fwnode parsing"). Since the
original commit will be reverted, the fix can be reverted too.

Signed-off-by: Saravana Kannan <saravanak@google.com>
Link: https://lore.kernel.org/r/20201121020232.908850-5-saravanak@google.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2020-12-09 19:10:20 +01:00
Saravana Kannan
96d8a9168e Revert "driver core: Don't do deferred probe in parallel with kernel_init thread"
This reverts commit cec72f3efc.

Commit cec72f3efc ("driver core: Don't do deferred probe in parallel
with kernel_init thread") was fixing a commit 716a7a2596 ("driver
core: fw_devlink: Add support for batching fwnode parsing"). Since the
commit being fixed itself is going to be reverted, the fix can also be
reverted.

Signed-off-by: Saravana Kannan <saravanak@google.com>
Link: https://lore.kernel.org/r/20201121020232.908850-4-saravanak@google.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2020-12-09 19:10:20 +01:00
Saravana Kannan
3b052a3e30 Revert "driver core: Rename dev_links_info.defer_sync to defer_hook"
This reverts commit ec7bd78498.

This field rename was done to reuse defer_syc list head for multiple
lists. That's not needed anymore and this list head will only be used
for defer sync. So revert this patch to avoid conflicts with the other
reverts coming after this.

Signed-off-by: Saravana Kannan <saravanak@google.com>
Link: https://lore.kernel.org/r/20201121020232.908850-3-saravanak@google.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2020-12-09 19:10:20 +01:00
Saravana Kannan
c95d64012a Revert "driver core: Avoid deferred probe due to fw_devlink_pause/resume()"
This reverts commit 2451e74647.

fw_devlink_pause/resume() was an incomplete attempt at boot time
optimization. That's going to get replaced by a much better optimization
at the end of the series. Since fw_devlink_pause/resume() is going away,
changes made for that can also go away.

Signed-off-by: Saravana Kannan <saravanak@google.com>
Link: https://lore.kernel.org/r/20201121020232.908850-2-saravanak@google.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2020-12-09 19:10:20 +01:00
Takashi Iwai
66482f6407 driver: core: Fix list corruption after device_del()
The device_links_purge() function (called from device_del()) tries to
remove the links.needs_suppliers list entry, but it's using
list_del(), hence it doesn't initialize after the removal.  This is OK
for normal cases where device_del() is called via device_destroy().
However, it's not guaranteed that the device object will be really
deleted soon after device_del().  In a minor case like HD-audio codec
reconfiguration that re-initializes the device after device_del(), it
may lead to a crash by the corrupted list entry.

As a simple fix, replace list_del() with list_del_init() in order to
make the list intact after the device_del() call.

Fixes: e2ae9bcc4a ("driver core: Add support for linking devices during device addition")
Cc: <stable@vger.kernel.org>
Reviewed-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Link: https://lore.kernel.org/r/20201208190326.27531-1-tiwai@suse.de
Cc: Saravana Kannan <saravanak@google.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2020-12-09 19:09:27 +01:00
Hui Su
0288e7fa35 fs/kernfs: remove the double check of dentry->inode
In both kernfs_node_from_dentry() and in
kernfs_dentry_node(), we will check the dentry->inode
is NULL or not, which is superfluous.

So remove the check in kernfs_node_from_dentry().

Acked-by: Tejun Heo <tj@kernel.org>
Signed-off-by: Hui Su <sh_def@163.com>
Link: https://lore.kernel.org/r/20201113132143.GA119541@rlk
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2020-12-09 19:03:49 +01:00
Dave Jiang
784b2c48ac driver core: auxiliary bus: Fix auxiliary bus shutdown null auxdrv ptr
If the probe of the auxdrv failed, the device->driver is set to NULL.
During kernel shutdown, the bus shutdown will call auxdrv->shutdown and
cause an invalid ptr dereference. Add check to make sure device->driver is
not NULL before we proceed.

Fixes: 7de3697e9c ("Add auxiliary bus support")
Cc: Dave Ertman <david.m.ertman@intel.com>
Signed-off-by: Dave Jiang <dave.jiang@intel.com>
Reviewed-by: Dan Williams <dan.j.williams@intel.com>
Link: https://lore.kernel.org/r/160710040926.1889434.8840329810698403478.stgit@djiang5-desk3.ch.intel.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2020-12-05 16:47:42 +01:00
Johan Hovold
5812b32e01 of: fix linker-section match-table corruption
Specify type alignment when declaring linker-section match-table entries
to prevent gcc from increasing alignment and corrupting the various
tables with padding (e.g. timers, irqchips, clocks, reserved memory).

This is specifically needed on x86 where gcc (typically) aligns larger
objects like struct of_device_id with static extent on 32-byte
boundaries which at best prevents matching on anything but the first
entry. Specifying alignment when declaring variables suppresses this
optimisation.

Here's a 64-bit example where all entries are corrupt as 16 bytes of
padding has been inserted before the first entry:

	ffffffff8266b4b0 D __clk_of_table
	ffffffff8266b4c0 d __of_table_fixed_factor_clk
	ffffffff8266b5a0 d __of_table_fixed_clk
	ffffffff8266b680 d __clk_of_table_sentinel

And here's a 32-bit example where the 8-byte-aligned table happens to be
placed on a 32-byte boundary so that all but the first entry are corrupt
due to the 28 bytes of padding inserted between entries:

	812b3ec0 D __irqchip_of_table
	812b3ec0 d __of_table_irqchip1
	812b3fa0 d __of_table_irqchip2
	812b4080 d __of_table_irqchip3
	812b4160 d irqchip_of_match_end

Verified on x86 using gcc-9.3 and gcc-4.9 (which uses 64-byte
alignment), and on arm using gcc-7.2.

Note that there are no in-tree users of these tables on x86 currently
(even if they are included in the image).

Fixes: 54196ccbe0 ("of: consolidate linker section OF match table declarations")
Fixes: f6e916b820 ("irqchip: add basic infrastructure")
Cc: stable <stable@vger.kernel.org>     # 3.9
Signed-off-by: Johan Hovold <johan@kernel.org>
Link: https://lore.kernel.org/r/20201123102319.8090-2-johan@kernel.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2020-12-04 15:50:09 +01:00
Greg Kroah-Hartman
2e37d91cad Merge tag 'auxbus-5.11-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core into driver-core-next
Auxiliary Bus support tag for 5.11-rc1

This is a signed tag for other subsystems to be able to pull in the
auxiliary bus support into their trees for the 5.11-rc1 merge.

Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2020-12-04 13:37:13 +01:00
Greg Kroah-Hartman
0d2bf11a6b driver core: auxiliary bus: minor coding style tweaks
For some reason, the original aux bus patch had some really long lines
in a few places, probably due to it being a very long-lived patch in
development by many different people.  Fix that up so that the two files
all have the same length lines and function formatting styles.

Cc: Dan Williams <dan.j.williams@intel.com>
Cc: Dave Ertman <david.m.ertman@intel.com>
Cc: Fred Oh <fred.oh@linux.intel.com>
Cc: Kiran Patil <kiran.patil@intel.com>
Cc: Leon Romanovsky <leonro@nvidia.com>
Cc: Martin Habets <mhabets@solarflare.com>
Cc: Parav Pandit <parav@mellanox.com>
Cc: Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com>
Cc: Ranjani Sridharan <ranjani.sridharan@linux.intel.com>
Cc: Shiraz Saleem <shiraz.saleem@intel.com>
Link: https://lore.kernel.org/r/X8oiSFTpYHw1xE/o@kroah.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2020-12-04 13:30:59 +01:00
Greg Kroah-Hartman
8142a46c50 driver core: auxiliary bus: make remove function return void
There's an effort to move the remove() callback in the driver core to
not return an int, as nothing can be done if this function fails.  To
make that effort easier, make the aux bus remove function void to start
with so that no users have to be changed sometime in the future.

Cc: Dan Williams <dan.j.williams@intel.com>
Cc: Dave Ertman <david.m.ertman@intel.com>
Cc: Fred Oh <fred.oh@linux.intel.com>
Cc: Kiran Patil <kiran.patil@intel.com>
Cc: Leon Romanovsky <leonro@nvidia.com>
Cc: Martin Habets <mhabets@solarflare.com>
Cc: Parav Pandit <parav@mellanox.com>
Cc: Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com>
Cc: Ranjani Sridharan <ranjani.sridharan@linux.intel.com>
Cc: Shiraz Saleem <shiraz.saleem@intel.com>
Link: https://lore.kernel.org/r/X8ohB1ks1NK7kPop@kroah.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2020-12-04 13:30:48 +01:00
Greg Kroah-Hartman
7bbb79ff5f driver core: auxiliary bus: move slab.h from include file
No need to include slab.h in include/linux/auxiliary_bus.h, as it is not
needed there.  Move it to drivers/base/auxiliary.c instead.

Cc: Dan Williams <dan.j.williams@intel.com>
Cc: Dave Ertman <david.m.ertman@intel.com>
Cc: Fred Oh <fred.oh@linux.intel.com>
Cc: Kiran Patil <kiran.patil@intel.com>
Cc: Leon Romanovsky <leonro@nvidia.com>
Cc: Martin Habets <mhabets@solarflare.com>
Cc: Parav Pandit <parav@mellanox.com>
Cc: Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com>
Cc: Ranjani Sridharan <ranjani.sridharan@linux.intel.com>
Cc: Shiraz Saleem <shiraz.saleem@intel.com>
Link: https://lore.kernel.org/r/X8og8xi3WkoYXet9@kroah.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2020-12-04 13:30:43 +01:00
Dave Ertman
7de3697e9c Add auxiliary bus support
Add support for the Auxiliary Bus, auxiliary_device and auxiliary_driver.
It enables drivers to create an auxiliary_device and bind an
auxiliary_driver to it.

The bus supports probe/remove shutdown and suspend/resume callbacks.
Each auxiliary_device has a unique string based id; driver binds to
an auxiliary_device based on this id through the bus.

Co-developed-by: Kiran Patil <kiran.patil@intel.com>
Co-developed-by: Ranjani Sridharan <ranjani.sridharan@linux.intel.com>
Co-developed-by: Fred Oh <fred.oh@linux.intel.com>
Co-developed-by: Leon Romanovsky <leonro@nvidia.com>
Signed-off-by: Kiran Patil <kiran.patil@intel.com>
Signed-off-by: Ranjani Sridharan <ranjani.sridharan@linux.intel.com>
Signed-off-by: Fred Oh <fred.oh@linux.intel.com>
Signed-off-by: Leon Romanovsky <leonro@nvidia.com>
Signed-off-by: Dave Ertman <david.m.ertman@intel.com>
Reviewed-by: Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com>
Reviewed-by: Shiraz Saleem <shiraz.saleem@intel.com>
Reviewed-by: Parav Pandit <parav@mellanox.com>
Reviewed-by: Dan Williams <dan.j.williams@intel.com>
Reviewed-by: Martin Habets <mhabets@solarflare.com>
Link: https://lore.kernel.org/r/20201113161859.1775473-2-david.m.ertman@intel.com
Signed-off-by: Dan Williams <dan.j.williams@intel.com>
Link: https://lore.kernel.org/r/160695681289.505290.8978295443574440604.stgit@dwillia2-desk3.amr.corp.intel.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2020-12-04 12:23:25 +01:00
Mauro Carvalho Chehab
33c0c9bdf7 drivers: base: fix some kernel-doc markups
class_create is actually defined at the header. Fix the
markup there and add a new one at the right place.

While here, also fix some markups for functions that have
different names between their prototypes and kernel-doc
comments.

Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
Link: https://lore.kernel.org/r/2fb6efd6a1f90d69ff73bf579566079cbb051e15.1603469755.git.mchehab+huawei@kernel.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2020-11-09 18:56:49 +01:00
Saravana Kannan
7008e58c63 driver core: Fix lockdep warning on wfs_lock
There's a potential deadlock with the following cycle:
wfs_lock --> device_links_lock --> kn->count

Fix this by simply dropping the lock around a list_empty() check that's
just exported to a sysfs file. The sysfs file output is an instantaneous
check anyway and the lock doesn't really add any protection.

Lockdep log:

[   48.808132]
[   48.808132] the existing dependency chain (in reverse order) is:
[   48.809069]
[   48.809069] -> #2 (kn->count){++++}:
[   48.809707]        __kernfs_remove.llvm.7860393000964815146+0x2d4/0x460
[   48.810537]        kernfs_remove_by_name_ns+0x54/0x9c
[   48.811171]        sysfs_remove_file_ns+0x18/0x24
[   48.811762]        device_del+0x2b8/0x5a8
[   48.812269]        __device_link_del+0x98/0xb8
[   48.812829]        device_links_driver_bound+0x210/0x2d8
[   48.813496]        driver_bound+0x44/0xf8
[   48.814000]        really_probe+0x340/0x6e0
[   48.814526]        driver_probe_device+0xb8/0x100
[   48.815117]        device_driver_attach+0x78/0xb8
[   48.815708]        __driver_attach+0xe0/0x194
[   48.816255]        bus_for_each_dev+0xa8/0x11c
[   48.816816]        driver_attach+0x24/0x30
[   48.817331]        bus_add_driver+0x100/0x1e0
[   48.817880]        driver_register+0x78/0x114
[   48.818427]        __platform_driver_register+0x44/0x50
[   48.819089]        0xffffffdbb3227038
[   48.819551]        do_one_initcall+0xd8/0x1e0
[   48.820099]        do_init_module+0xd8/0x298
[   48.820636]        load_module+0x3afc/0x44c8
[   48.821173]        __arm64_sys_finit_module+0xbc/0xf0
[   48.821807]        el0_svc_common+0xbc/0x1d0
[   48.822344]        el0_svc_handler+0x74/0x98
[   48.822882]        el0_svc+0x8/0xc
[   48.823310]
[   48.823310] -> #1 (device_links_lock){+.+.}:
[   48.824036]        __mutex_lock_common+0xe0/0xe44
[   48.824626]        mutex_lock_nested+0x28/0x34
[   48.825185]        device_link_add+0xd4/0x4ec
[   48.825734]        of_link_to_suppliers+0x158/0x204
[   48.826347]        of_fwnode_add_links+0x50/0x64
[   48.826928]        device_link_add_missing_supplier_links+0x90/0x11c
[   48.827725]        fw_devlink_resume+0x58/0x130
[   48.828296]        of_platform_default_populate_init+0xb4/0xd0
[   48.829030]        do_one_initcall+0xd8/0x1e0
[   48.829578]        do_initcall_level+0xb8/0xcc
[   48.830137]        do_basic_setup+0x60/0x7c
[   48.830662]        kernel_init_freeable+0x128/0x1ac
[   48.831275]        kernel_init+0x18/0x29c
[   48.831781]        ret_from_fork+0x10/0x18
[   48.832297]
[   48.832297] -> #0 (wfs_lock){+.+.}:
[   48.832922]        __lock_acquire+0xe04/0x2e20
[   48.833480]        lock_acquire+0xbc/0xec
[   48.833984]        __mutex_lock_common+0xe0/0xe44
[   48.834577]        mutex_lock_nested+0x28/0x34
[   48.835136]        waiting_for_supplier_show+0x3c/0x98
[   48.835781]        dev_attr_show+0x48/0xb4
[   48.836295]        sysfs_kf_seq_show+0xe8/0x184
[   48.836864]        kernfs_seq_show+0x48/0x8c
[   48.837401]        seq_read+0x1c8/0x600
[   48.837884]        kernfs_fop_read+0x68/0x204
[   48.838431]        __vfs_read+0x60/0x214
[   48.838925]        vfs_read+0xbc/0x15c
[   48.839397]        ksys_read+0x78/0xe4
[   48.839869]        __arm64_sys_read+0x1c/0x28
[   48.840416]        el0_svc_common+0xbc/0x1d0
[   48.840953]        el0_svc_handler+0x74/0x98
[   48.841490]        el0_svc+0x8/0xc
[   48.841917]
[   48.841917] other info that might help us debug this:
[   48.841917]
[   48.842920] Chain exists of:
[   48.842920]   wfs_lock --> device_links_lock --> kn->count
[   48.842920]
[   48.844152]  Possible unsafe locking scenario:
[   48.844152]
[   48.844895]        CPU0                    CPU1
[   48.845463]        ----                    ----
[   48.846032]   lock(kn->count);
[   48.846417]                                lock(device_links_lock);
[   48.847203]                                lock(kn->count);
[   48.847902]   lock(wfs_lock);
[   48.848276]
[   48.848276]  *** DEADLOCK ***

Reported-by: Cheng-Jui.Wang@mediatek.com
Signed-off-by: Saravana Kannan <saravanak@google.com>
Link: https://lore.kernel.org/r/20201104205431.3795207-1-saravanak@google.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2020-11-09 18:17:52 +01:00
Willem de Bruijn
21774fd81a kernfs: bring names in comments in line with code
Fix two stragglers in the comments of the below rename operation.

Fixes: adc5e8b58f ("kernfs: drop s_ prefix from kernfs_node members")
Acked-by: Tejun Heo <tj@kernel.org>
Signed-off-by: Willem de Bruijn <willemb@google.com>
Link: https://lore.kernel.org/r/20201015185726.1386868-1-willemdebruijn.kernel@gmail.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2020-11-09 18:12:39 +01:00
Linus Torvalds
f8394f232b Linux 5.10-rc3 2020-11-08 16:10:16 -08:00
Linus Torvalds
15f5d201c1 Merge tag 'driver-core-5.10-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core
Pull driver core documentation fixes from Greg KH:
 "Some small Documentation fixes that were fallout from the larger
  documentation update we did in 5.10-rc2.

  Nothing major here at all, but all of these have been in linux-next
  and resolve build warnings when building the documentation files"

* tag 'driver-core-5.10-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core:
  Documentation: remove mic/index from misc-devices/index.rst
  scripts: get_api.pl: Add sub-titles to ABI output
  scripts: get_abi.pl: Don't let ABI files to create subtitles
  docs: leds: index.rst: add a missing file
  docs: ABI: sysfs-class-net: fix a typo
  docs: ABI: sysfs-driver-dma-ioatdma: what starts with /sys
2020-11-08 11:30:25 -08:00
Linus Torvalds
bbc821849e Merge tag 'tty-5.10-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/tty
Pull tty/serial fixes from Greg KH:
 "Here are a small number of small tty and serial fixes for some
  reported problems for the tty core, vt code, and some serial drivers.

  They include fixes for:

   - a buggy and obsolete vt font ioctl removal

   - 8250_mtk serial baudrate runtime warnings

   - imx serial earlycon build configuration fix

   - txx9 serial driver error path cleanup issues

   - tty core fix in release_tty that can be triggered by trying to bind
     an invalid serial port name to a speakup console device

  Almost all of these have been in linux-next without any problems, the
  only one that hasn't, just deletes code :)"

* tag 'tty-5.10-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/tty:
  vt: Disable KD_FONT_OP_COPY
  tty: fix crash in release_tty if tty->port is not set
  serial: txx9: add missing platform_driver_unregister() on error in serial_txx9_init
  tty: serial: imx: enable earlycon by default if IMX_SERIAL_CONSOLE is enabled
  serial: 8250_mtk: Fix uart_get_baud_rate warning
2020-11-08 11:28:08 -08:00
Linus Torvalds
df53b815c7 Merge tag 'usb-5.10-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb
Pull USB fixes from Greg KH:
 "Here are some small USB fixes and new device ids:

   - USB gadget fixes for some reported issues

   - Fixes for the ever-troublesome apple fastcharge driver, hopefully
     we finally have it right.

   - More USB core quirks for odd devices

   - USB serial driver fixes for some long-standing issues that were
     recently found

   - some new USB serial driver device ids

  All have been in linux-next with no reported issues"

* tag 'usb-5.10-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb:
  USB: apple-mfi-fastcharge: fix reference leak in apple_mfi_fc_set_property
  usb: mtu3: fix panic in mtu3_gadget_stop()
  USB: serial: option: add Telit FN980 composition 0x1055
  USB: serial: option: add LE910Cx compositions 0x1203, 0x1230, 0x1231
  USB: serial: cyberjack: fix write-URB completion race
  USB: Add NO_LPM quirk for Kingston flash drive
  USB: serial: option: add Quectel EC200T module support
  usb: raw-gadget: fix memory leak in gadget_setup
  usb: dwc2: Avoid leaving the error_debugfs label unused
  usb: dwc3: ep0: Fix delay status handling
  usb: gadget: fsl: fix null pointer checking
  usb: gadget: goku_udc: fix potential crashes in probe
  usb: dwc3: pci: add support for the Intel Alder Lake-S
2020-11-08 11:24:10 -08:00
Eddy Wu
b4e00444ca fork: fix copy_process(CLONE_PARENT) race with the exiting ->real_parent
current->group_leader->exit_signal may change during copy_process() if
current->real_parent exits.

Move the assignment inside tasklist_lock to avoid the race.

Signed-off-by: Eddy Wu <eddy_wu@trendmicro.com>
Acked-by: Oleg Nesterov <oleg@redhat.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2020-11-08 11:18:39 -08:00
Daniel Vetter
3c4e0dff20 vt: Disable KD_FONT_OP_COPY
It's buggy:

On Fri, Nov 06, 2020 at 10:30:08PM +0800, Minh Yuan wrote:
> We recently discovered a slab-out-of-bounds read in fbcon in the latest
> kernel ( v5.10-rc2 for now ).  The root cause of this vulnerability is that
> "fbcon_do_set_font" did not handle "vc->vc_font.data" and
> "vc->vc_font.height" correctly, and the patch
> <https://lkml.org/lkml/2020/9/27/223> for VT_RESIZEX can't handle this
> issue.
>
> Specifically, we use KD_FONT_OP_SET to set a small font.data for tty6, and
> use  KD_FONT_OP_SET again to set a large font.height for tty1. After that,
> we use KD_FONT_OP_COPY to assign tty6's vc_font.data to tty1's vc_font.data
> in "fbcon_do_set_font", while tty1 retains the original larger
> height. Obviously, this will cause an out-of-bounds read, because we can
> access a smaller vc_font.data with a larger vc_font.height.

Further there was only one user ever.
- Android's loadfont, busybox and console-tools only ever use OP_GET
  and OP_SET
- fbset documentation only mentions the kernel cmdline font: option,
  not anything else.
- systemd used OP_COPY before release 232 published in Nov 2016

Now unfortunately the crucial report seems to have gone down with
gmane, and the commit message doesn't say much. But the pull request
hints at OP_COPY being broken

https://github.com/systemd/systemd/pull/3651

So in other words, this never worked, and the only project which
foolishly every tried to use it, realized that rather quickly too.

Instead of trying to fix security issues here on dead code by adding
missing checks, fix the entire thing by removing the functionality.

Note that systemd code using the OP_COPY function ignored the return
value, so it doesn't matter what we're doing here really - just in
case a lone server somewhere happens to be extremely unlucky and
running an affected old version of systemd. The relevant code from
font_copy_to_all_vcs() in systemd was:

	/* copy font from active VT, where the font was uploaded to */
	cfo.op = KD_FONT_OP_COPY;
	cfo.height = vcs.v_active-1; /* tty1 == index 0 */
	(void) ioctl(vcfd, KDFONTOP, &cfo);

Note this just disables the ioctl, garbage collecting the now unused
callbacks is left for -next.

v2: Tetsuo found the old mail, which allowed me to find it on another
archive. Add the link too.

Acked-by: Peilin Ye <yepeilin.cs@gmail.com>
Reported-by: Minh Yuan <yuanmingbuaa@gmail.com>
References: https://lists.freedesktop.org/archives/systemd-devel/2016-June/036935.html
References: https://github.com/systemd/systemd/pull/3651
Cc: Greg KH <greg@kroah.com>
Cc: Peilin Ye <yepeilin.cs@gmail.com>
Cc: Tetsuo Handa <penguin-kernel@i-love.sakura.ne.jp>
Signed-off-by: Daniel Vetter <daniel.vetter@intel.com>
Link: https://lore.kernel.org/r/20201108153806.3140315-1-daniel.vetter@ffwll.ch
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2020-11-08 19:35:06 +01:00
Linus Torvalds
9dbc1c03ee Merge tag 'xfs-5.10-fixes-3' of git://git.kernel.org/pub/scm/fs/xfs/xfs-linux
Pull xfs fixes from Darrick Wong:

 - Fix an uninitialized struct problem

 - Fix an iomap problem zeroing unwritten EOF blocks

 - Fix some clumsy error handling when writeback fails on filesystems
   with blocksize < pagesize

 - Fix a retry loop not resetting loop variables properly

 - Fix scrub flagging rtinherit inodes on a non-rt fs, since the kernel
   actually does permit that combination

 - Fix excessive page cache flushing when unsharing part of a file

* tag 'xfs-5.10-fixes-3' of git://git.kernel.org/pub/scm/fs/xfs/xfs-linux:
  xfs: only flush the unshared range in xfs_reflink_unshare
  xfs: fix scrub flagging rtinherit even if there is no rt device
  xfs: fix missing CoW blocks writeback conversion retry
  iomap: clean up writeback state logic on writepage error
  iomap: support partial page discard on writeback block mapping failure
  xfs: flush new eof page on truncate to avoid post-eof corruption
  xfs: set xefi_discard when creating a deferred agfl free log intent item
2020-11-08 10:23:07 -08:00
Linus Torvalds
6b2c4d52fd Merge branch 'hch' (patches from Christoph)
Merge procfs splice read fixes from Christoph Hellwig:
 "Greg reported a problem due to the fact that Android tests use procfs
  files to test splice, which stopped working with the changes for
  set_fs() removal.

  This series adds read_iter support for seq_file, and uses those for
  various proc files using seq_file to restore splice read support"

[ Side note: Christoph initially had a scripted "move everything over"
  patch, which looks fine, but I personally would prefer us to actively
  discourage splice() on random files.  So this does just the minimal
  basic core set of proc file op conversions.

  For completeness, and in case people care, that script was

     sed -i -e 's/\.proc_read\(\s*=\s*\)seq_read/\.proc_read_iter\1seq_read_iter/g'

  but I'll wait and see if somebody has a strong argument for using
  splice on random small /proc files before I'd run it on the whole
  kernel.   - Linus ]

* emailed patches from Christoph Hellwig <hch@lst.de>:
  proc "seq files": switch to ->read_iter
  proc "single files": switch to ->read_iter
  proc/stat: switch to ->read_iter
  proc/cpuinfo: switch to ->read_iter
  proc: wire up generic_file_splice_read for iter ops
  seq_file: add seq_read_iter
2020-11-08 10:11:31 -08:00
Linus Torvalds
40be821d62 Merge tag 'x86-urgent-2020-11-08' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull x86 fixes from Thomas Gleixner:
 "A set of x86 fixes:

   - Use SYM_FUNC_START_WEAK in the mem* ASM functions instead of a
     combination of .weak and SYM_FUNC_START_LOCAL which makes LLVMs
     integrated assembler upset

   - Correct the mitigation selection logic which prevented the related
     prctl to work correctly

   - Make the UV5 hubless system work correctly by fixing up the
     malformed table entries and adding the missing ones"

* tag 'x86-urgent-2020-11-08' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
  x86/platform/uv: Recognize UV5 hubless system identifier
  x86/platform/uv: Remove spaces from OEM IDs
  x86/platform/uv: Fix missing OEM_TABLE_ID
  x86/speculation: Allow IBPB to be conditionally enabled on CPUs with always-on STIBP
  x86/lib: Change .weak to SYM_FUNC_START_WEAK for arch/x86/lib/mem*_64.S
2020-11-08 10:09:36 -08:00
Linus Torvalds
100e38914a Merge tag 'perf-urgent-2020-11-08' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull perf fix from Thomas Gleixner:
 "A single fix for the perf core plugging a memory leak in the address
  filter parser"

* tag 'perf-urgent-2020-11-08' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
  perf/core: Fix a memory leak in perf_event_parse_addr_filter()
2020-11-08 10:05:10 -08:00
Linus Torvalds
aaaaa7ecdc Merge tag 'locking-urgent-2020-11-08' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull futex fix from Thomas Gleixner:
 "A single fix for the futex code where an intermediate state in the
  underlying RT mutex was not handled correctly and triggering a BUG()
  instead of treating it as another variant of retry condition"

* tag 'locking-urgent-2020-11-08' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
  futex: Handle transient "ownerless" rtmutex state correctly
2020-11-08 09:56:37 -08:00
Linus Torvalds
15a9844458 Merge tag 'irq-urgent-2020-11-08' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull irq fixes from Thomas Gleixner:
 "A set of fixes for interrupt chip drivers:

   - Fix the fallout of the IPI as interrupt conversion in Kconfig and
     the BCM2836 interrupt chip driver

   - Fixes for interrupt affinity setting and the handling of
     hierarchical irq domains in the SiFive PLIC driver

   - Make the unmapped event handling in the TI SCI driver work
     correctly

   - A few minor fixes and cleanups in various chip drivers and Kconfig"

* tag 'irq-urgent-2020-11-08' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
  dt-bindings: irqchip: ti, sci-inta: Fix diagram indentation for unmapped events
  irqchip/ti-sci-inta: Add support for unmapped event handling
  dt-bindings: irqchip: ti, sci-inta: Update for unmapped event handling
  irqchip/renesas-intc-irqpin: Merge irlm_bit and needs_irlm
  irqchip/sifive-plic: Fix chip_data access within a hierarchy
  irqchip/sifive-plic: Fix broken irq_set_affinity() callback
  irqchip/stm32-exti: Add all LP timer exti direct events support
  irqchip/bcm2836: Fix missing __init annotation
  irqchip/mips: Drop selection of IRQ_DOMAIN_HIERARCHY
  irqchip/mst: Make mst_intc_of_init static
  irqchip/mst: MST_IRQ should depend on ARCH_MEDIATEK or ARCH_MSTARV7
  genirq: Let GENERIC_IRQ_IPI select IRQ_DOMAIN_HIERARCHY
2020-11-08 09:52:57 -08:00
Linus Torvalds
6a8d0d283d Merge tag 'core-urgent-2020-11-08' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull entry code fix from Thomas Gleixner:
 "A single fix for the generic entry code to correct the wrong
  assumption that the lockdep interrupt state needs not to be
  established before calling the RCU check"

* tag 'core-urgent-2020-11-08' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
  entry: Fix the incorrect ordering of lockdep and RCU check
2020-11-08 09:51:28 -08:00
Linus Torvalds
e942d75281 Merge tag 'powerpc-5.10-3' of git://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linux
Pull powerpc fixes from Michael Ellerman:

 - fix miscompilation with GCC 4.9 by using asm_goto_volatile for put_user()

 - fix for an RCU splat at boot caused by a recent lockdep change

 - fix for a possible deadlock in our EEH debugfs code

 - several fixes for handling of _PAGE_ACCESSED on 32-bit platforms

 - build fix when CONFIG_NUMA=n

Thanks to Andreas Schwab, Christophe Leroy, Oliver O'Halloran, Qian Cai,
and Scott Cheloha.

* tag 'powerpc-5.10-3' of git://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linux:
  powerpc/numa: Fix build when CONFIG_NUMA=n
  powerpc/8xx: Manage _PAGE_ACCESSED through APG bits in L1 entry
  powerpc/8xx: Always fault when _PAGE_ACCESSED is not set
  powerpc/40x: Always fault when _PAGE_ACCESSED is not set
  powerpc/603: Always fault when _PAGE_ACCESSED is not set
  powerpc: Use asm_goto_volatile for put_user()
  powerpc/smp: Call rcu_cpu_starting() earlier
  powerpc/eeh_cache: Fix a possible debugfs deadlock
2020-11-08 09:37:20 -08:00
Linus Torvalds
4429f14aee Merge tag 'block-5.10-2020-11-07' of git://git.kernel.dk/linux-block
Pull block fixes from Jens Axboe:

 - NVMe pull request from Christoph:
    - revert a nvme_queue size optimization (Keith Bush)
    - fabrics timeout races fixes (Chao Leng and Sagi Grimberg)"

 - null_blk zone locking fix (Damien)

* tag 'block-5.10-2020-11-07' of git://git.kernel.dk/linux-block:
  null_blk: Fix scheduling in atomic with zoned mode
  nvme-tcp: avoid repeated request completion
  nvme-rdma: avoid repeated request completion
  nvme-tcp: avoid race between time out and tear down
  nvme-rdma: avoid race between time out and tear down
  nvme: introduce nvme_sync_io_queues
  Revert "nvme-pci: remove last_sq_tail"
2020-11-07 13:56:07 -08:00
Linus Torvalds
e9c02d68cc Merge tag 'io_uring-5.10-2020-11-07' of git://git.kernel.dk/linux-block
Pull io_uring fixes from Jens Axboe:
 "A set of fixes for io_uring:

   - SQPOLL cancelation fixes

   - Two fixes for the io_identity COW

   - Cancelation overflow fix (Pavel)

   - Drain request cancelation fix (Pavel)

   - Link timeout race fix (Pavel)"

* tag 'io_uring-5.10-2020-11-07' of git://git.kernel.dk/linux-block:
  io_uring: fix link lookup racing with link timeout
  io_uring: use correct pointer for io_uring_show_cred()
  io_uring: don't forget to task-cancel drained reqs
  io_uring: fix overflowed cancel w/ linked ->files
  io_uring: drop req/tctx io_identity separately
  io_uring: ensure consistent view of original task ->mm from SQPOLL
  io_uring: properly handle SQPOLL request cancelations
  io-wq: cancel request if it's asking for files and we don't have them
2020-11-07 13:49:24 -08:00
Mike Galbraith
9f5d1c336a futex: Handle transient "ownerless" rtmutex state correctly
Gratian managed to trigger the BUG_ON(!newowner) in fixup_pi_state_owner().
This is one possible chain of events leading to this:

Task Prio       Operation
T1   120	lock(F)
T2   120	lock(F)   -> blocks (top waiter)
T3   50 (RT)	lock(F)   -> boosts T1 and blocks (new top waiter)
XX   		timeout/  -> wakes T2
		signal
T1   50		unlock(F) -> wakes T3 (rtmutex->owner == NULL, waiter bit is set)
T2   120	cleanup   -> try_to_take_mutex() fails because T3 is the top waiter
     			     and the lower priority T2 cannot steal the lock.
     			  -> fixup_pi_state_owner() sees newowner == NULL -> BUG_ON()

The comment states that this is invalid and rt_mutex_real_owner() must
return a non NULL owner when the trylock failed, but in case of a queued
and woken up waiter rt_mutex_real_owner() == NULL is a valid transient
state. The higher priority waiter has simply not yet managed to take over
the rtmutex.

The BUG_ON() is therefore wrong and this is just another retry condition in
fixup_pi_state_owner().

Drop the locks, so that T3 can make progress, and then try the fixup again.

Gratian provided a great analysis, traces and a reproducer. The analysis is
to the point, but it confused the hell out of that tglx dude who had to
page in all the futex horrors again. Condensed version is above.

[ tglx: Wrote comment and changelog ]

Fixes: c1e2f0eaf0 ("futex: Avoid violating the 10th rule of futex")
Reported-by: Gratian Crisan <gratian.crisan@ni.com>
Signed-off-by: Mike Galbraith <efault@gmx.de>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Cc: stable@vger.kernel.org
Link: https://lore.kernel.org/r/87a6w6x7bb.fsf@ni.com
Link: https://lore.kernel.org/r/87sg9pkvf7.fsf@nanos.tec.linutronix.de
2020-11-07 22:07:04 +01:00
Linus Torvalds
af6e7de0c7 Merge branch 'i2c/for-current' of git://git.kernel.org/pub/scm/linux/kernel/git/wsa/linux
Pull i2c fixes from Wolfram Sang:
 "Driver bugfixes for I2C.

  Most of them are for the new mlxbf driver which got more exposure
  after rc1. The sh_mobile patch should already have reached you during
  the merge window, but I accidently dropped it. However, since it fixes
  a problem with rebooting, it is still fine for rc3"

* 'i2c/for-current' of git://git.kernel.org/pub/scm/linux/kernel/git/wsa/linux:
  i2c: designware: slave should do WRITE_REQUESTED before WRITE_RECEIVED
  i2c: designware: call i2c_dw_read_clear_intrbits_slave() once
  i2c: mlxbf: I2C_MLXBF should depend on MELLANOX_PLATFORM
  i2c: mlxbf: Update author and maintainer email info
  i2c: mlxbf: Update reference clock frequency
  i2c: mlxbf: Remove unecessary wrapper functions
  i2c: mlxbf: Fix resrticted cast warning of sparse
  i2c: mlxbf: Add CONFIG_ACPI to guard ACPI function call
  i2c: sh_mobile: implement atomic transfers
  i2c: mediatek: move dma reset before i2c reset
2020-11-07 11:24:03 -08:00
Linus Torvalds
4b1d362db9 Merge tag 'riscv-for-linus-5.10-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/riscv/linux
Pull RISC-V fixes from Palmer Dabbelt:

 - SPDX comment style fix

 - ignore memory that is unusable

 - avoid setting a kernel text offset for the !MMU kernels, where
   skipping the first page of memory is both unnecessary and costly

 - avoid passing the flag bits in satp to pfn_to_virt()

 - fix __put_kernel_nofault, where we had the arguments to
   __put_user_nocheck reversed

 - workaround for a bug in the FU540 to avoid triggering PMP issues
   during early boot

 - change to how we pull symbols out of the vDSO. The old mechanism was
   removed from binutils-2.35 (and has been backported to Debian's 2.34)

* tag 'riscv-for-linus-5.10-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/riscv/linux:
  RISC-V: Fix the VDSO symbol generaton for binutils-2.35+
  RISC-V: Use non-PGD mappings for early DTB access
  riscv: uaccess: fix __put_kernel_nofault()
  riscv: fix pfn_to_virt err in do_page_fault().
  riscv: Set text_offset correctly for M-Mode
  RISC-V: Remove any memblock representing unusable memory area
  risc-v: kernel: ftrace: Fixes improper SPDX comment style
2020-11-07 11:16:37 -08:00
Greg Kroah-Hartman
db388a6cb7 Merge tag 'usb-serial-5.10-rc3' of https://git.kernel.org/pub/scm/linux/kernel/git/johan/usb-serial into usb-linus
Johan writes:

USB-serial fixes for 5.10-rc3

Here's a fix for a long-standing issue with the cyberjack driver and
some new device ids.

All have been in linux-next with no reported issues.

* tag 'usb-serial-5.10-rc3' of https://git.kernel.org/pub/scm/linux/kernel/git/johan/usb-serial:
  USB: serial: option: add Telit FN980 composition 0x1055
  USB: serial: option: add LE910Cx compositions 0x1203, 0x1230, 0x1231
  USB: serial: cyberjack: fix write-URB completion race
  USB: serial: option: add Quectel EC200T module support
2020-11-07 15:56:37 +01:00
kiyin(尹亮)
7bdb157cde perf/core: Fix a memory leak in perf_event_parse_addr_filter()
As shown through runtime testing, the "filename" allocation is not
always freed in perf_event_parse_addr_filter().

There are three possible ways that this could happen:

 - It could be allocated twice on subsequent iterations through the loop,
 - or leaked on the success path,
 - or on the failure path.

Clean up the code flow to make it obvious that 'filename' is always
freed in the reallocation path and in the two return paths as well.

We rely on the fact that kfree(NULL) is NOP and filename is initialized
with NULL.

This fixes the leak. No other side effects expected.

[ Dan Carpenter: cleaned up the code flow & added a changelog. ]
[ Ingo Molnar: updated the changelog some more. ]

Fixes: 375637bc52 ("perf/core: Introduce address range filtering")
Signed-off-by: "kiyin(尹亮)" <kiyin@tencent.com>
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Ingo Molnar <mingo@kernel.org>
Cc: "Srivatsa S. Bhat" <srivatsa@csail.mit.edu>
Cc: Anthony Liguori <aliguori@amazon.com>
--
 kernel/events/core.c | 12 +++++-------
 1 file changed, 5 insertions(+), 7 deletions(-)
2020-11-07 13:07:26 +01:00
Mike Travis
801284f973 x86/platform/uv: Recognize UV5 hubless system identifier
Testing shows a problem in that UV5 hubless systems were not being
recognized.  Add them to the list of OEM IDs checked.

Fixes: 6c7794423a ("Add UV5 direct references")
Signed-off-by: Mike Travis <mike.travis@hpe.com>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Link: https://lore.kernel.org/r/20201105222741.157029-4-mike.travis@hpe.com
2020-11-07 11:17:39 +01:00
Mike Travis
1aee505e01 x86/platform/uv: Remove spaces from OEM IDs
Testing shows that trailing spaces caused problems with the OEM_ID and
the OEM_TABLE_ID.  One being that the OEM_ID would not string compare
correctly.  Another the OEM_ID and OEM_TABLE_ID would be concatenated
in the printout.  Remove any trailing spaces.

Fixes: 1e61f5a95f ("Add and decode Arch Type in UVsystab")
Signed-off-by: Mike Travis <mike.travis@hpe.com>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Link: https://lore.kernel.org/r/20201105222741.157029-3-mike.travis@hpe.com
2020-11-07 11:17:39 +01:00
Mike Travis
1aec69ae56 x86/platform/uv: Fix missing OEM_TABLE_ID
Testing shows a problem in that the OEM_TABLE_ID was missing for
hubless systems.  This is used to determine the APIC type (legacy or
extended).  Add the OEM_TABLE_ID to the early hubless processing.

Fixes: 1e61f5a95f ("Add and decode Arch Type in UVsystab")
Signed-off-by: Mike Travis <mike.travis@hpe.com>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Link: https://lore.kernel.org/r/20201105222741.157029-2-mike.travis@hpe.com
2020-11-07 11:17:39 +01:00
Linus Torvalds
659caaf65d Merge tag 'ceph-for-5.10-rc3' of git://github.com/ceph/ceph-client
Pull ceph fix from Ilya Dryomov:
 "A fix for a potential stall on umount caused by the MDS dropping our
  REQUEST_CLOSE message. The code that handled this case was
  inadvertently disabled in 5.9, this patch removes it entirely and
  fixes the problem in a way that is consistent with ceph-fuse"

* tag 'ceph-for-5.10-rc3' of git://github.com/ceph/ceph-client:
  ceph: check session state after bumping session->s_seq
2020-11-06 15:46:39 -08:00
Linus Torvalds
03f0f5ad58 Merge tag 'linux-kselftest-fixes-5.10-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/shuah/linux-kselftest
Pull Kselftest fixes from Shuah Khan:
 "Fixes to the ftrace test and several fixes from Tommi Rantala for
  various other tests"

* tag 'linux-kselftest-fixes-5.10-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/shuah/linux-kselftest:
  selftests: binderfs: use SKIP instead of XFAIL
  selftests: clone3: use SKIP instead of XFAIL
  selftests: core: use SKIP instead of XFAIL in close_range_test.c
  selftests: proc: fix warning: _GNU_SOURCE redefined
  selftests: pidfd: drop needless linux/kcmp.h inclusion in pidfd_setns_test.c
  selftests: pidfd: add CONFIG_CHECKPOINT_RESTORE=y to config
  selftests: pidfd: skip test on kcmp() ENOSYS
  selftests: pidfd: use ksft_test_result_skip() when skipping test
  selftests/harness: prettify SKIP message whitespace again
  selftests: pidfd: fix compilation errors due to wait.h
  selftests: filter kselftest headers from command in lib.mk
  selftests/ftrace: check for do_sys_openat2 in user-memory test
  selftests/ftrace: Use $FUNCTION_FORK to reference kernel fork function
2020-11-06 15:42:42 -08:00
Linus Torvalds
d4fc96832f Merge tag 'scsi-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi
Pull SCSI fixes from James Bottomley:
 "Three driver fixes. Two (alua and hpsa) are in hard to trigger
  attach/detach situations but the mp3sas one involves a polled to
  interrupt switch over that could trigger in any high IOPS situation"

* tag 'scsi-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi:
  scsi: mpt3sas: Fix timeouts observed while reenabling IRQ
  scsi: scsi_dh_alua: Avoid crash during alua_bus_detach()
  scsi: hpsa: Fix memory leak in hpsa_init_one()
2020-11-06 15:24:12 -08:00
Linus Torvalds
bf3e76289c Merge branch 'mtd/fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/mtd/linux
Pull mtd fixes from Miquel Raynal.

* 'mtd/fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/mtd/linux:
  mtd: rawnand: stm32_fmc2: fix broken ECC
  mtd: spi-nor: Fix address width on flash chips > 16MB
  mtd: spi-nor: Don't copy self-pointing struct around
  mtd: rawnand: ifc: Move the ECC engine initialization to the right place
  mtd: rawnand: mxc: Move the ECC engine initialization to the right place
2020-11-06 13:08:25 -08:00
Linus Torvalds
44d8062185 Merge tag 'spi-fix-v5.10-rc2-2' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/spi
Pull spi fix from Mark Brown:
 "This is an additional fix on top of 5e31ba0c05 ('spi: bcm2835: fix
  gpio cs level inversion') - when sending my prior pull request I had
  misremembred the status of that patch, apologies for the noise here"

* tag 'spi-fix-v5.10-rc2-2' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/spi:
  spi: bcm2835: remove use of uninitialized gpio flags variable
2020-11-06 13:05:21 -08:00
Linus Torvalds
bb72bbe8f6 Merge tag 'sound-5.10-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound
Pull sound fixes from Takashi Iwai:
 "Quite a bunch of small fixes that have been gathered since the last
  pull, including changes like below:

   - HD-audio runtime PM fixes and refactoring

   - HD-audio and USB-audio quirks

   - SOF warning fix

   - Various ASoC device-specific fixes for Intel, Qualcomm, etc"

* tag 'sound-5.10-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound: (26 commits)
  ALSA: usb-audio: Add implicit feedback quirk for Qu-16
  ASoC: mchp-spdiftx: Do not set Validity bit(s)
  ALSA: usb-audio: Add implicit feedback quirk for MODX
  ALSA: usb-audio: add usb vendor id as DSD-capable for Khadas devices
  ALSA: hda/realtek - Enable headphone for ASUS TM420
  ALSA: hda: prevent undefined shift in snd_hdac_ext_bus_get_link()
  ASoC: qcom: lpass-cpu: Fix clock disable failure
  ASoC: qcom: lpass-sc7180: Fix MI2S bitwidth field bit positions
  ASoC: codecs: wcd9335: Set digital gain range correctly
  ASoC: codecs: wcd934x: Set digital gain range correctly
  ALSA: hda: Reinstate runtime_allow() for all hda controllers
  ALSA: hda: Separate runtime and system suspend
  ALSA: hda: Refactor codec PM to use direct-complete optimization
  ALSA: hda/realtek - Fixed HP headset Mic can't be detected
  ALSA: usb-audio: Add implicit feedback quirk for Zoom UAC-2
  ALSA: make snd_kcontrol_new name a normal string
  ALSA: fix kernel-doc markups
  ASoC: SOF: loader: handle all SOF_IPC_EXT types
  ASoC: cs42l51: manage mclk shutdown delay
  ASoC: qcom: sdm845: set driver name correctly
  ...
2020-11-06 12:58:11 -08:00