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Author SHA1 Message Date
Komal Bajaj
495341664a phy: qcpm-qmp-usb: Add support for QDU1000/QRU1000
Add QDU1000/QRU1000 specific register layout and table configs.

Co-developed-by: Amrit Anand <quic_amrianan@quicinc.com>
Signed-off-by: Amrit Anand <quic_amrianan@quicinc.com>
Signed-off-by: Komal Bajaj <quic_kbajaj@quicinc.com>
Reviewed-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org>
Link: https://lore.kernel.org/r/20240502082017.13777-5-quic_kbajaj@quicinc.com
Signed-off-by: Vinod Koul <vkoul@kernel.org>
2024-05-04 17:39:06 +05:30
Komal Bajaj
f75a4b3a6e dt-bindings: phy: qcom,qmp-usb: Add QDU1000 USB3 PHY
Add dt-bindings for USB3 PHY found on Qualcomm QDU/QRU1000 SoC.

Signed-off-by: Komal Bajaj <quic_kbajaj@quicinc.com>
Acked-by: Rob Herring <robh@kernel.org>
Link: https://lore.kernel.org/r/20240502082017.13777-3-quic_kbajaj@quicinc.com
Signed-off-by: Vinod Koul <vkoul@kernel.org>
2024-05-04 17:39:06 +05:30
Komal Bajaj
fbd3b6fe36 dt-bindings: phy: qcom,usb-snps-femto-v2: Add bindings for QDU1000
Document the compatible string for USB phy found in Qualcomm
QDU/QRU1000 SoC.

Signed-off-by: Komal Bajaj <quic_kbajaj@quicinc.com>
Acked-by: Rob Herring <robh@kernel.org>
Link: https://lore.kernel.org/r/20240502082017.13777-2-quic_kbajaj@quicinc.com
Signed-off-by: Vinod Koul <vkoul@kernel.org>
2024-05-04 17:39:06 +05:30
Mrinmay Sarkar
82b7487b8e phy: qcom-qmp-pcie: add x4 lane EP support for sa8775p
Add support for x4 lane end point mode PHY found on sa8755p platform.
Reusing existing serdes and pcs_misc table for EP and moved
BIAS_EN_CLKBUFLR_EN register from RC serdes table to common serdes
table as this register is part of both RC and EP.

Signed-off-by: Mrinmay Sarkar <quic_msarkar@quicinc.com>
Reviewed-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org>
Link: https://lore.kernel.org/r/1714494089-7917-2-git-send-email-quic_msarkar@quicinc.com
Signed-off-by: Vinod Koul <vkoul@kernel.org>
2024-05-04 17:36:56 +05:30
Ping-Ke Shih
82b85a836a wifi: rtlwifi: 8192d: initialize rate_mask in rtl92de_update_hal_rate_mask()
le32p_replace_bits() only updates partial bits of rate_mask, and GCC warns
below. Set initial value to avoid warnings, and prevent random value of
missed bits (bit 6 of rate_mask.macid_and_short_gi).

In file included from ./include/linux/fortify-string.h:5,
                 from ./include/linux/string.h:369,
                 from ./include/linux/bitmap.h:13,
                 from ./include/linux/cpumask.h:13,
                 from ./include/linux/sched.h:16,
                 from drivers/net/wireless/realtek/rtlwifi/rtl8192d/../wifi.h:9,
                 from drivers/net/wireless/realtek/rtlwifi/rtl8192d/hw_common.c:4:
In function 'le32p_replace_bits',
    inlined from 'rtl92de_update_hal_rate_mask.isra' at drivers/net/wireless/realtek/rtlwifi/rtl8192d/hw_common.c:986:2:
./include/linux/bitfield.h:189:15: warning: 'rate_mask' is used uninitialized [-Wuninitialized]
  189 |         *p = (*p & ~to(field)) | type##_encode_bits(val, field);        \
      |               ^~
./include/linux/bitfield.h:196:9: note: in expansion of macro '____MAKE_OP'
  196 |         ____MAKE_OP(le##size,u##size,cpu_to_le##size,le##size##_to_cpu) \
      |         ^~~~~~~~~~~
./include/linux/bitfield.h:201:1: note: in expansion of macro '__MAKE_OP'
  201 | __MAKE_OP(32)
      | ^~~~~~~~~
drivers/net/wireless/realtek/rtlwifi/rtl8192d/hw_common.c: In function 'rtl92de_update_hal_rate_mask.isra':
drivers/net/wireless/realtek/rtlwifi/rtl8192d/hw_common.c:863:37: note: 'rate_mask' declared here
  863 |         struct rtl92d_rate_mask_h2c rate_mask;
      |                                     ^~~~~~~~~

Compile tested only.

Fixes: 014bba73b5 ("wifi: rtlwifi: Adjust rtl8192d-common for USB")
Cc: Bitterblue Smith <rtl8821cerfe2@gmail.com>
Signed-off-by: Ping-Ke Shih <pkshih@realtek.com>
Link: https://msgid.link/20240504111916.31445-1-pkshih@realtek.com
2024-05-04 20:05:14 +08:00
Peter Griffin
2ff6365e22 phy: samsung-ufs: ufs: exit on first reported error
To preserve the err value, exit the loop immediately if an error
is returned.

Fixes: f2c6d0fa19 ("phy: samsung-ufs: use exynos_get_pmu_regmap_by_phandle() to obtain PMU regmap")
Signed-off-by: Peter Griffin <peter.griffin@linaro.org>
Link: https://lore.kernel.org/r/20240426104129.2211949-3-peter.griffin@linaro.org
Signed-off-by: Vinod Koul <vkoul@kernel.org>
2024-05-04 17:24:28 +05:30
Peter Griffin
8b19c45ae4 phy: samsung-ufs: ufs: remove superfluous mfd/syscon.h header
mfd/syscon.h header is no longer required since the update to
exynos_get_pmu_regmap_by_phandle() api.

Fixes: f2c6d0fa19 ("phy: samsung-ufs: use exynos_get_pmu_regmap_by_phandle() to obtain PMU regmap")
Signed-off-by: Peter Griffin <peter.griffin@linaro.org>
Link: https://lore.kernel.org/r/20240426104129.2211949-2-peter.griffin@linaro.org
Signed-off-by: Vinod Koul <vkoul@kernel.org>
2024-05-04 17:24:28 +05:30
Chen Ni
413bf4e857 watchdog: sa1100: Fix PTR_ERR_OR_ZERO() vs NULL check in sa1100dog_probe()
devm_ioremap() doesn't return error pointers, it returns NULL on error.
Update the check accordingly.

Fixes: e86bd43bcf ("watchdog: sa1100: use platform device registration")
Signed-off-by: Chen Ni <nichen@iscas.ac.cn>
Reviewed-by: Guenter Roeck <linux@roeck-us.net>
Link: https://lore.kernel.org/r/20240426075808.1582678-1-nichen@iscas.ac.cn
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Wim Van Sebroeck <wim@linux-watchdog.org>
2024-05-04 12:50:43 +02:00
Judith Mendez
cae5851653 watchdog: rti_wdt: Set min_hw_heartbeat_ms to accommodate a safety margin
On AM62x, the watchdog is pet before the valid window is open. Fix
min_hw_heartbeat and accommodate a 2% + static offset safety margin.
The static offset accounts for max hardware error.

Remove the hack in the driver which shifts the open window boundary,
since it is no longer necessary due to the fix mentioned above.

cc: stable@vger.kernel.org
Fixes: 5527483f8f ("watchdog: rti-wdt: attach to running watchdog during probe")
Signed-off-by: Judith Mendez <jm@ti.com>
Reviewed-by: Guenter Roeck <linux@roeck-us.net>
Link: https://lore.kernel.org/r/20240417205700.3947408-1-jm@ti.com
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Wim Van Sebroeck <wim@linux-watchdog.org>
2024-05-04 12:50:43 +02:00
Niklas Schnelle
52df67b6b3 watchdog: add HAS_IOPORT dependencies
In a future patch HAS_IOPORT=n will disable inb()/outb() and friends at
compile time. We thus need to add HAS_IOPORT as dependency for those
drivers using them.

Co-developed-by: Arnd Bergmann <arnd@kernel.org>
Signed-off-by: Arnd Bergmann <arnd@kernel.org>
Signed-off-by: Niklas Schnelle <schnelle@linux.ibm.com>
Reviewed-by: Guenter Roeck <linux@roeck-us.net>
Link: https://lore.kernel.org/r/20240410084201.1481930-2-schnelle@linux.ibm.com
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Wim Van Sebroeck <wim@linux-watchdog.org>
2024-05-04 12:50:42 +02:00
Dawei Li
4c97f0433d watchdog/wdt-main: Use cpumask_of() to avoid cpumask var on stack
In general it's preferable to avoid placing cpumasks on the stack, as
for large values of NR_CPUS these can consume significant amounts of
stack space and make stack overflows more likely.

Use cpumask_of() to avoid the need for a temporary cpumask on the stack

Signed-off-by: Dawei Li <set_pte_at@outlook.com>
Reviewed-by: Guenter Roeck <linux@roeck-us.net>
Link: https://lore.kernel.org/r/TYTP286MB3564B037A81DAAE1AC3A16F3CA062@TYTP286MB3564.JPNP286.PROD.OUTLOOK.COM
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Wim Van Sebroeck <wim@linux-watchdog.org>
2024-05-04 12:50:42 +02:00
Matti Vaittinen
e3b3afd34d watchdog: bd9576: Drop "always-running" property
The always-running (from linux,wdt-gpio.yaml) is abused by the BD9576
watchdog driver. It's defined meaning is "the watchdog is always running
and can not be stopped". The BD9576 watchdog driver has implemented it
as "start watchdog when loading the module and prevent it from being
stopped".

Furthermore, the implementation does not set the WDOG_HW_RUNNING when
enabling the watchdog due to the "always-running" at module loading.
This will end up resulting a watchdog timeout if the device is not
opened.

The culprit was pointed out by Guenter, discussion can be found from
https://lore.kernel.org/lkml/4fa3a64b-60fb-4e5e-8785-0f14da37eea2@roeck-us.net/

Drop the invalid "always-running" handling.

Signed-off-by: Matti Vaittinen <mazziesaccount@gmail.com>
Reported-by: Guenter Roeck <linux@roeck-us.net>
Fixes: b237bcac55 ("wdt: Support wdt on ROHM BD9576MUF and BD9573MUF")
Reviewed-by: Guenter Roeck <linux@roeck-us.net>
Link: https://lore.kernel.org/r/ZhPAt76yaJMersXf@fedora
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Wim Van Sebroeck <wim@linux-watchdog.org>
2024-05-04 12:50:41 +02:00
Krzysztof Kozlowski
56e23c6d7f watchdog: mtx-1: drop driver owner assignment
Core in platform_driver_register() already sets the .owner, so driver
does not need to.

Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Reviewed-by: Guenter Roeck <linux@roeck-us.net>
Link: https://lore.kernel.org/r/20240327174638.519445-1-krzysztof.kozlowski@linaro.org
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Wim Van Sebroeck <wim@linux-watchdog.org>
2024-05-04 12:50:41 +02:00
Duoming Zhou
5736015212 watchdog: cpu5wdt.c: Fix use-after-free bug caused by cpu5wdt_trigger
When the cpu5wdt module is removing, the origin code uses del_timer() to
de-activate the timer. If the timer handler is running, del_timer() could
not stop it and will return directly. If the port region is released by
release_region() and then the timer handler cpu5wdt_trigger() calls outb()
to write into the region that is released, the use-after-free bug will
happen.

Change del_timer() to timer_shutdown_sync() in order that the timer handler
could be finished before the port region is released.

Fixes: e09d9c3e9f ("watchdog: cpu5wdt.c: add missing del_timer call")
Signed-off-by: Duoming Zhou <duoming@zju.edu.cn>
Reviewed-by: Guenter Roeck <linux@roeck-us.net>
Link: https://lore.kernel.org/r/20240324140444.119584-1-duoming@zju.edu.cn
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Wim Van Sebroeck <wim@linux-watchdog.org>
2024-05-04 12:50:40 +02:00
Mark Pearson
1f6602c8ed watchdog: lenovo_se10_wdt: Watchdog driver for Lenovo SE10 platform
Watchdog driver implementation for Lenovo SE10 platform.

Signed-off-by: Mark Pearson <mpearson-lenovo@squebb.ca>
Signed-off-by: David Ober <dober@lenovo.com>
Reviewed-by: Guenter Roeck <linux@roeck-us.net>
Link: https://lore.kernel.org/r/20240315195227.91282-1-mpearson-lenovo@squebb.ca
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Wim Van Sebroeck <wim@linux-watchdog.org>
2024-05-04 12:50:40 +02:00
Lucas Stach
f513991b69 clk: rockchip: rk3568: Add PLL rate for 724 MHz
This rate allows to provide a low-jitter 72,4 MHz pixelclock
for a custom eDP panel from the VPLL.

Signed-off-by: Lucas Stach <l.stach@pengutronix.de>
Link: https://lore.kernel.org/r/20240503153329.3906030-1-l.stach@pengutronix.de
Signed-off-by: Heiko Stuebner <heiko@sntech.de>
2024-05-04 12:38:13 +02:00
Christophe JAILLET
947b8f2a8b clk: rockchip: Remove an unused field in struct rockchip_mmc_clock
In "struct rockchip_mmc_clock", the 'id' field is unused.
Remove it.

Found with cppcheck, unusedStructMember.

Signed-off-by: Christophe JAILLET <christophe.jaillet@wanadoo.fr>
Link: https://lore.kernel.org/r/410bc0f86c7b9f1c80f8a4e9a2a028a9a6ee1ec0.1713970085.git.christophe.jaillet@wanadoo.fr
Signed-off-by: Heiko Stuebner <heiko@sntech.de>
2024-05-04 12:38:02 +02:00
Kees Cook
f6bdc7865e
fs: WARN when f_count resurrection is attempted
It should never happen that get_file() is called on a file with
f_count equal to zero. If this happens, a use-after-free condition
has happened[1], and we need to attempt a best-effort reporting of
the situation to help find the root cause more easily. Additionally,
this serves as a data corruption indicator that system owners using
warn_limit or panic_on_warn would like to have detected.

Link: https://lore.kernel.org/lkml/7c41cf3c-2a71-4dbb-8f34-0337890906fc@gmail.com/ [1]
Suggested-by: Peter Zijlstra <peterz@infradead.org>
Signed-off-by: Kees Cook <keescook@chromium.org>
Link: https://lore.kernel.org/r/20240503201620.work.651-kees@kernel.org
Signed-off-by: Christian Brauner <brauner@kernel.org>
2024-05-04 11:42:01 +02:00
Steven Rostedt (Google)
d57cf30c4c eventfs: Have "events" directory get permissions from its parent
The events directory gets its permissions from the root inode. But this
can cause an inconsistency if the instances directory changes its
permissions, as the permissions of the created directories under it should
inherit the permissions of the instances directory when directories under
it are created.

Currently the behavior is:

 # cd /sys/kernel/tracing
 # chgrp 1002 instances
 # mkdir instances/foo
 # ls -l instances/foo
[..]
 -r--r-----  1 root lkp  0 May  1 18:55 buffer_total_size_kb
 -rw-r-----  1 root lkp  0 May  1 18:55 current_tracer
 -rw-r-----  1 root lkp  0 May  1 18:55 error_log
 drwxr-xr-x  1 root root 0 May  1 18:55 events
 --w-------  1 root lkp  0 May  1 18:55 free_buffer
 drwxr-x---  2 root lkp  0 May  1 18:55 options
 drwxr-x--- 10 root lkp  0 May  1 18:55 per_cpu
 -rw-r-----  1 root lkp  0 May  1 18:55 set_event

All the files and directories under "foo" has the "lkp" group except the
"events" directory. That's because its getting its default value from the
mount point instead of its parent.

Have the "events" directory make its default value based on its parent's
permissions. That now gives:

 # ls -l instances/foo
[..]
 -rw-r-----  1 root lkp 0 May  1 21:16 buffer_subbuf_size_kb
 -r--r-----  1 root lkp 0 May  1 21:16 buffer_total_size_kb
 -rw-r-----  1 root lkp 0 May  1 21:16 current_tracer
 -rw-r-----  1 root lkp 0 May  1 21:16 error_log
 drwxr-xr-x  1 root lkp 0 May  1 21:16 events
 --w-------  1 root lkp 0 May  1 21:16 free_buffer
 drwxr-x---  2 root lkp 0 May  1 21:16 options
 drwxr-x--- 10 root lkp 0 May  1 21:16 per_cpu
 -rw-r-----  1 root lkp 0 May  1 21:16 set_event

Link: https://lore.kernel.org/linux-trace-kernel/20240502200906.161887248@goodmis.org

Cc: stable@vger.kernel.org
Cc: Masami Hiramatsu <mhiramat@kernel.org>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
Cc: Andrew Morton <akpm@linux-foundation.org>
Fixes: 8186fff7ab ("tracefs/eventfs: Use root and instance inodes as default ownership")
Signed-off-by: Steven Rostedt (Google) <rostedt@goodmis.org>
2024-05-04 04:25:37 -04:00
Steven Rostedt (Google)
22e61e15af eventfs: Do not treat events directory different than other directories
Treat the events directory the same as other directories when it comes to
permissions. The events directory was considered different because it's
dentry is persistent, whereas the other directory dentries are created
when accessed. But the way tracefs now does its ownership by using the
root dentry's permissions as the default permissions, the events directory
can get out of sync when a remount is performed setting the group and user
permissions.

Remove the special case for the events directory on setting the
attributes. This allows the updates caused by remount to work properly as
well as simplifies the code.

Link: https://lore.kernel.org/linux-trace-kernel/20240502200906.002923579@goodmis.org

Cc: stable@vger.kernel.org
Cc: Masami Hiramatsu <mhiramat@kernel.org>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
Cc: Andrew Morton <akpm@linux-foundation.org>
Fixes: 8186fff7ab ("tracefs/eventfs: Use root and instance inodes as default ownership")
Signed-off-by: Steven Rostedt (Google) <rostedt@goodmis.org>
2024-05-04 04:25:37 -04:00
Steven Rostedt (Google)
d53891d348 eventfs: Do not differentiate the toplevel events directory
The toplevel events directory is really no different than the events
directory of instances. Having the two be different caused
inconsistencies and made it harder to fix the permissions bugs.

Make all events directories act the same.

Link: https://lore.kernel.org/linux-trace-kernel/20240502200905.846448710@goodmis.org

Cc: stable@vger.kernel.org
Cc: Masami Hiramatsu <mhiramat@kernel.org>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
Cc: Andrew Morton <akpm@linux-foundation.org>
Fixes: 8186fff7ab ("tracefs/eventfs: Use root and instance inodes as default ownership")
Signed-off-by: Steven Rostedt (Google) <rostedt@goodmis.org>
2024-05-04 04:25:37 -04:00
Steven Rostedt (Google)
6599bd5517 tracefs: Still use mount point as default permissions for instances
If the instances directory's permissions were never change, then have it
and its children use the mount point permissions as the default.

Currently, the permissions of instance directories are determined by the
instance directory's permissions itself. But if the tracefs file system is
remounted and changes the permissions, the instance directory and its
children should use the new permission.

But because both the instance directory and its children use the instance
directory's inode for permissions, it misses the update.

To demonstrate this:

  # cd /sys/kernel/tracing/
  # mkdir instances/foo
  # ls -ld instances/foo
 drwxr-x--- 5 root root 0 May  1 19:07 instances/foo
  # ls -ld instances
 drwxr-x--- 3 root root 0 May  1 18:57 instances
  # ls -ld current_tracer
 -rw-r----- 1 root root 0 May  1 18:57 current_tracer

  # mount -o remount,gid=1002 .
  # ls -ld instances
 drwxr-x--- 3 root root 0 May  1 18:57 instances
  # ls -ld instances/foo/
 drwxr-x--- 5 root root 0 May  1 19:07 instances/foo/
  # ls -ld current_tracer
 -rw-r----- 1 root lkp 0 May  1 18:57 current_tracer

Notice that changing the group id to that of "lkp" did not affect the
instances directory nor its children. It should have been:

  # ls -ld current_tracer
 -rw-r----- 1 root root 0 May  1 19:19 current_tracer
  # ls -ld instances/foo/
 drwxr-x--- 5 root root 0 May  1 19:25 instances/foo/
  # ls -ld instances
 drwxr-x--- 3 root root 0 May  1 19:19 instances

  # mount -o remount,gid=1002 .
  # ls -ld current_tracer
 -rw-r----- 1 root lkp 0 May  1 19:19 current_tracer
  # ls -ld instances
 drwxr-x--- 3 root lkp 0 May  1 19:19 instances
  # ls -ld instances/foo/
 drwxr-x--- 5 root lkp 0 May  1 19:25 instances/foo/

Where all files were updated by the remount gid update.

Link: https://lore.kernel.org/linux-trace-kernel/20240502200905.686838327@goodmis.org

Cc: stable@vger.kernel.org
Cc: Masami Hiramatsu <mhiramat@kernel.org>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
Cc: Andrew Morton <akpm@linux-foundation.org>
Fixes: 8186fff7ab ("tracefs/eventfs: Use root and instance inodes as default ownership")
Signed-off-by: Steven Rostedt (Google) <rostedt@goodmis.org>
2024-05-04 04:25:37 -04:00
Steven Rostedt (Google)
baa23a8d43 tracefs: Reset permissions on remount if permissions are options
There's an inconsistency with the way permissions are handled in tracefs.
Because the permissions are generated when accessed, they default to the
root inode's permission if they were never set by the user. If the user
sets the permissions, then a flag is set and the permissions are saved via
the inode (for tracefs files) or an internal attribute field (for
eventfs).

But if a remount happens that specify the permissions, all the files that
were not changed by the user gets updated, but the ones that were are not.
If the user were to remount the file system with a given permission, then
all files and directories within that file system should be updated.

This can cause security issues if a file's permission was updated but the
admin forgot about it. They could incorrectly think that remounting with
permissions set would update all files, but miss some.

For example:

 # cd /sys/kernel/tracing
 # chgrp 1002 current_tracer
 # ls -l
[..]
 -rw-r-----  1 root root 0 May  1 21:25 buffer_size_kb
 -rw-r-----  1 root root 0 May  1 21:25 buffer_subbuf_size_kb
 -r--r-----  1 root root 0 May  1 21:25 buffer_total_size_kb
 -rw-r-----  1 root lkp  0 May  1 21:25 current_tracer
 -rw-r-----  1 root root 0 May  1 21:25 dynamic_events
 -r--r-----  1 root root 0 May  1 21:25 dyn_ftrace_total_info
 -r--r-----  1 root root 0 May  1 21:25 enabled_functions

Where current_tracer now has group "lkp".

 # mount -o remount,gid=1001 .
 # ls -l
 -rw-r-----  1 root tracing 0 May  1 21:25 buffer_size_kb
 -rw-r-----  1 root tracing 0 May  1 21:25 buffer_subbuf_size_kb
 -r--r-----  1 root tracing 0 May  1 21:25 buffer_total_size_kb
 -rw-r-----  1 root lkp     0 May  1 21:25 current_tracer
 -rw-r-----  1 root tracing 0 May  1 21:25 dynamic_events
 -r--r-----  1 root tracing 0 May  1 21:25 dyn_ftrace_total_info
 -r--r-----  1 root tracing 0 May  1 21:25 enabled_functions

Everything changed but the "current_tracer".

Add a new link list that keeps track of all the tracefs_inodes which has
the permission flags that tell if the file/dir should use the root inode's
permission or not. Then on remount, clear all the flags so that the
default behavior of using the root inode's permission is done for all
files and directories.

Link: https://lore.kernel.org/linux-trace-kernel/20240502200905.529542160@goodmis.org

Cc: stable@vger.kernel.org
Cc: Masami Hiramatsu <mhiramat@kernel.org>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
Cc: Andrew Morton <akpm@linux-foundation.org>
Fixes: 8186fff7ab ("tracefs/eventfs: Use root and instance inodes as default ownership")
Signed-off-by: Steven Rostedt (Google) <rostedt@goodmis.org>
2024-05-04 04:25:37 -04:00
Steven Rostedt (Google)
ee4e037947 eventfs: Free all of the eventfs_inode after RCU
The freeing of eventfs_inode via a kfree_rcu() callback. But the content
of the eventfs_inode was being freed after the last kref. This is
dangerous, as changes are being made that can access the content of an
eventfs_inode from an RCU loop.

Instead of using kfree_rcu() use call_rcu() that calls a function to do
all the freeing of the eventfs_inode after a RCU grace period has expired.

Link: https://lore.kernel.org/linux-trace-kernel/20240502200905.370261163@goodmis.org

Cc: stable@vger.kernel.org
Cc: Masami Hiramatsu <mhiramat@kernel.org>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
Cc: Andrew Morton <akpm@linux-foundation.org>
Fixes: 43aa6f97c2 ("eventfs: Get rid of dentry pointers without refcounts")
Signed-off-by: Steven Rostedt (Google) <rostedt@goodmis.org>
2024-05-04 04:25:37 -04:00
Steven Rostedt (Google)
b63db58e2f eventfs/tracing: Add callback for release of an eventfs_inode
Synthetic events create and destroy tracefs files when they are created
and removed. The tracing subsystem has its own file descriptor
representing the state of the events attached to the tracefs files.
There's a race between the eventfs files and this file descriptor of the
tracing system where the following can cause an issue:

With two scripts 'A' and 'B' doing:

  Script 'A':
    echo "hello int aaa" > /sys/kernel/tracing/synthetic_events
    while :
    do
      echo 0 > /sys/kernel/tracing/events/synthetic/hello/enable
    done

  Script 'B':
    echo > /sys/kernel/tracing/synthetic_events

Script 'A' creates a synthetic event "hello" and then just writes zero
into its enable file.

Script 'B' removes all synthetic events (including the newly created
"hello" event).

What happens is that the opening of the "enable" file has:

 {
	struct trace_event_file *file = inode->i_private;
	int ret;

	ret = tracing_check_open_get_tr(file->tr);
 [..]

But deleting the events frees the "file" descriptor, and a "use after
free" happens with the dereference at "file->tr".

The file descriptor does have a reference counter, but there needs to be a
way to decrement it from the eventfs when the eventfs_inode is removed
that represents this file descriptor.

Add an optional "release" callback to the eventfs_entry array structure,
that gets called when the eventfs file is about to be removed. This allows
for the creating on the eventfs file to increment the tracing file
descriptor ref counter. When the eventfs file is deleted, it can call the
release function that will call the put function for the tracing file
descriptor.

This will protect the tracing file from being freed while a eventfs file
that references it is being opened.

Link: https://lore.kernel.org/linux-trace-kernel/20240426073410.17154-1-Tze-nan.Wu@mediatek.com/
Link: https://lore.kernel.org/linux-trace-kernel/20240502090315.448cba46@gandalf.local.home

Cc: stable@vger.kernel.org
Cc: Masami Hiramatsu <mhiramat@kernel.org>
Cc: Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
Fixes: 5790b1fb3d ("eventfs: Remove eventfs_file and just use eventfs_inode")
Reported-by: Tze-nan wu <Tze-nan.Wu@mediatek.com>
Tested-by: Tze-nan Wu (吳澤南) <Tze-nan.Wu@mediatek.com>
Signed-off-by: Steven Rostedt (Google) <rostedt@goodmis.org>
2024-05-04 04:25:37 -04:00
Ricardo Ribalda
e695668af8 media: cec.h: Fix kerneldoc
is_claiming_log_addrs documentation was missing.

fix this kernel-doc warning:
include/media/cec.h:296: warning: Function parameter or struct member 'is_claiming_log_addrs' not described in 'cec_adapter'

Signed-off-by: Ricardo Ribalda <ribalda@chromium.org>
Reviewed-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
2024-05-04 10:19:59 +02:00
Ricardo Ribalda
64627daf0c media: uvcvideo: Refactor iterators
Avoid using the iterators after the list_for_each() constructs.
This patch should be a NOP, but makes cocci, happier:

drivers/media/usb/uvc/uvc_ctrl.c:1861:44-50: ERROR: invalid reference to the index variable of the iterator on line 1850
drivers/media/usb/uvc/uvc_ctrl.c:2195:17-23: ERROR: invalid reference to the index variable of the iterator on line 2179

Reviewed-by: Sergey Senozhatsky <senozhatsky@chromium.org>
Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Ricardo Ribalda <ribalda@chromium.org>
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
2024-05-04 10:19:59 +02:00
Ricardo Ribalda
2c7f7a3bfe media: v4l: async: refactor v4l2_async_create_ancillary_links
Return 0 without checking IS_ERR or PTR_ERR if CONFIG_MEDIA_CONTROLLER
is not enabled.

This makes cocci happier:

drivers/media/v4l2-core/v4l2-async.c:331:23-30: ERROR: PTR_ERR applied after initialization to constant on line 319

Signed-off-by: Ricardo Ribalda <ribalda@chromium.org>
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
2024-05-04 10:19:59 +02:00
Greg Kroah-Hartman
1565fce99b IIO: 2nd set of new device support, features and cleanup for 6.10 (take 2)
The usual mixed bag from towards the end of the cycle.
 Changes since take 1. Fixed the fixes tag and indeed fixed a rebase I
 messed up on the same fix.
 
 New devices support
 ===================
 
 invensense,icm42600
 - Support the ICM-42686-P a high range device going up to 32g and 4000 dps
 
 New features
 ============
 
 adi,ad7944
 - Add support for chain mode in which many ADCs may be daisy chained and
   read out via a single long read.
 adi,ad9467/backend library
 - Add bus tuning related interfaces.
 adi,axi-adc
 - Add control for the AXI clock - seems always enabled early in boot for other
   reasons, but the driver should not rely on that..
 
 Cleanups and minor or late breaking fixes
 =========================================
 
 Micrsoft/ACPI mount matrix handling.
 - Replace several implementations of the Microsoft defined ROTM ACPI
   method with a single one.
 multiple drivers
 - Don't call the result of wait_for_completion() timeout as it's
   more accurate as time_left.
 adi,ad7266
 - Stop setting the iio_dev->masklength as it's done by the IIO core and
   should not be set from drivers.
 adi,ad799x
 - Some checkpatch type fixes.
 adi,ad9839
 - Ensure compelte MU_CNT1 is written during lock phase.
 adi,axi-dac
 - Fix inverted parameter.
 adi,adis16475
 - Drop documentation of non existent sysfs files.
 avago,apds9306
 - Fix an off by one error that overly restricts the range of persistence
   and adaptive thresholds that the driver accepts.
 freescale,mxs-lradc
 - Stop setting the iio_dev->masklength as it's done by the IIO core and
   should not be set from drivers.
 invensense,timestamp library
 - Fix timestamp vs interupt alignment and aovid soms glitches that
   occured when switching sampling frequency.
 microchip,mcp3564
 - Make use of device_for_each_child_node_scoped() to allow early release
   without manual fwnode_handle_put().
 microchip,mcp9600
 - Allow for negative temperatures.
 microchip,pac1934
 - Avoid an out of bounds array index.
 richtek,rtq6056
 - Use iio_device_claim_direct_scoped() to automate lock release and simplify
   the code.
 sensortek,stk3110
 - Drop a likely incorrect ACPI ID. No known users of this ID and it's
   not a valid ACPI ID.
 ti,ads1015
 - Make use of device_for_each_child_node_scoped() to allow early release
   without manual fwnode_handle_put().
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Merge tag 'iio-for-6.10b-take2' of https://git.kernel.org/pub/scm/linux/kernel/git/jic23/iio into char-misc-next

Jonathan writes:

IIO: 2nd set of new device support, features and cleanup for 6.10 (take 2)

The usual mixed bag from towards the end of the cycle.
Changes since take 1. Fixed the fixes tag and indeed fixed a rebase I
messed up on the same fix.

New devices support
===================

invensense,icm42600
- Support the ICM-42686-P a high range device going up to 32g and 4000 dps

New features
============

adi,ad7944
- Add support for chain mode in which many ADCs may be daisy chained and
  read out via a single long read.
adi,ad9467/backend library
- Add bus tuning related interfaces.
adi,axi-adc
- Add control for the AXI clock - seems always enabled early in boot for other
  reasons, but the driver should not rely on that..

Cleanups and minor or late breaking fixes
=========================================

Micrsoft/ACPI mount matrix handling.
- Replace several implementations of the Microsoft defined ROTM ACPI
  method with a single one.
multiple drivers
- Don't call the result of wait_for_completion() timeout as it's
  more accurate as time_left.
adi,ad7266
- Stop setting the iio_dev->masklength as it's done by the IIO core and
  should not be set from drivers.
adi,ad799x
- Some checkpatch type fixes.
adi,ad9839
- Ensure compelte MU_CNT1 is written during lock phase.
adi,axi-dac
- Fix inverted parameter.
adi,adis16475
- Drop documentation of non existent sysfs files.
avago,apds9306
- Fix an off by one error that overly restricts the range of persistence
  and adaptive thresholds that the driver accepts.
freescale,mxs-lradc
- Stop setting the iio_dev->masklength as it's done by the IIO core and
  should not be set from drivers.
invensense,timestamp library
- Fix timestamp vs interupt alignment and aovid soms glitches that
  occured when switching sampling frequency.
microchip,mcp3564
- Make use of device_for_each_child_node_scoped() to allow early release
  without manual fwnode_handle_put().
microchip,mcp9600
- Allow for negative temperatures.
microchip,pac1934
- Avoid an out of bounds array index.
richtek,rtq6056
- Use iio_device_claim_direct_scoped() to automate lock release and simplify
  the code.
sensortek,stk3110
- Drop a likely incorrect ACPI ID. No known users of this ID and it's
  not a valid ACPI ID.
ti,ads1015
- Make use of device_for_each_child_node_scoped() to allow early release
  without manual fwnode_handle_put().

* tag 'iio-for-6.10b-take2' of https://git.kernel.org/pub/scm/linux/kernel/git/jic23/iio: (41 commits)
  iio: temperature: mcp9600: Fix temperature reading for negative values
  iio: adc: PAC1934: fix accessing out of bounds array index
  iio: invensense: fix timestamp glitches when switching frequency
  iio: invensense: fix interrupt timestamp alignment
  iio: dac: ad9739a: write complete MU_CNT1 register during lock
  iio: pressure: zpa2326: use 'time_left' variable with wait_for_completion_interruptible_timeout()
  iio: adc: twl6030-gpadc: use 'time_left' variable with wait_for_completion_interruptible_timeout()
  iio: adc: stm32-dfsdm-adc: use 'time_left' variable with wait_for_completion_interruptible_timeout()
  iio: adc: stm32-adc: use 'time_left' variable with wait_for_completion_interruptible_timeout()
  iio: adc: intel_mrfld_adc: use 'time_left' variable with wait_for_completion_interruptible_timeout()
  iio: adc: fsl-imx25-gcq: use 'time_left' variable with wait_for_completion_interruptible_timeout()
  iio: adc: exynos_adc: use 'time_left' variable with wait_for_completion_timeout()
  iio: adc: ad_sigma_delta: use 'time_left' variable with wait_for_completion_timeout()
  iio: adc: ti-ads1015: use device_for_each_child_node_scoped()
  iio: adc: ad799x: Prefer to use octal permission
  iio: adc: ad799x: add blank line to avoid warning messages
  iio: adc: ad799x: change 'unsigned' to 'unsigned int' declaration
  iio: adc: mcp3564: Use device_for_each_child_node_scoped()
  iio: adc: ad9467: support digital interface calibration
  iio: adc: adi-axi-adc: support digital interface calibration
  ...
2024-05-04 09:48:52 +02:00
Greg Kroah-Hartman
eacdd8e36d interconnect changes for 6.10
This pull request contains the interconnect changes for the 6.10-rc1 merge
 window. It contains some small driver changes listed below:
 
 Driver changes:
 - Cleanup sm6115 QoS port numbering.
 - Fix incorrect port value in qcm2290 driver.
 
 Signed-off-by: Georgi Djakov <djakov@kernel.org>
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Merge tag 'icc-6.10-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/djakov/icc into char-misc-next

Georgi writes:

interconnect changes for 6.10

This pull request contains the interconnect changes for the 6.10-rc1 merge
window. It contains some small driver changes listed below:

Driver changes:
- Cleanup sm6115 QoS port numbering.
- Fix incorrect port value in qcm2290 driver.

Signed-off-by: Georgi Djakov <djakov@kernel.org>

* tag 'icc-6.10-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/djakov/icc:
  interconnect: qcom: qcm2290: Fix mas_snoc_bimc QoS port assignment
  interconnect: qcom: sm6115: Unspaghettify SNoC QoS port numbering
2024-05-04 09:47:38 +02:00
Rob Herring (Arm)
b3e991240e dt-bindings: clock: fixed: Define a preferred node name
Define "clock-<freq>" as the preferred node name for fixed-clock and
fixed-factor-clock where <freq> is the output frequency of the clock.
There isn't much of an existing pattern for names of these nodes. The
most frequent patterns are a prefix or suffix of "clk", but there's a
bunch that don't follow any sort of pattern. We could use
"clock-controller-.*", but these nodes aren't really a controller in any
way. So let's at least align with part of that and use 'clock-'.

For now this only serves as documentation as the schema still allows
anything to avoid lots of additional warnings for something low priority
to fix. Once a "no deprecated" mode is added to the tools, warnings can
be enabled selectively.

Signed-off-by: Rob Herring (Arm) <robh@kernel.org>
Link: https://lore.kernel.org/r/20240430180415.657067-1-robh@kernel.org
Acked-by: Conor Dooley <conor.dooley@microchip.com>
Signed-off-by: Stephen Boyd <sboyd@kernel.org>
2024-05-03 17:56:55 -07:00
Stephen Boyd
d8555714cc Amlogic clock updates for v6.10:
* s4/a1: add regmap maximum register for proper debugfs dump
 * s4: add MODULE_DEVICE_TABLE() on pll and periph controllers
 * pll driver: print clock name on lock error to help debug
 * vclk: finish dsi clock path support
 * license: fix occurence "GPL v2" as reported by checkpatch
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Merge tag 'clk-meson-v6.10-1' of https://github.com/BayLibre/clk-meson into clk-amlogic

Pull Amlogic clk driver updates from Jerome Brunet:

 - s4/a1: add regmap maximum register for proper debugfs dump
 - s4: add MODULE_DEVICE_TABLE() on pll and periph controllers
 - pll driver: print clock name on lock error to help debug
 - vclk: finish dsi clock path support
 - license: fix occurence "GPL v2" as reported by checkpatch

* tag 'clk-meson-v6.10-1' of https://github.com/BayLibre/clk-meson:
  clk: meson: s4: fix module autoloading
  clk: meson: fix module license to GPL only
  clk: meson: g12a: make VCLK2 and ENCL clock path configurable by CCF
  clk: meson: add vclk driver
  clk: meson: pll: print out pll name when unable to lock it
  clk: meson: s4: pll: determine maximum register in regmap config
  clk: meson: s4: peripherals: determine maximum register in regmap config
  clk: meson: a1: pll: determine maximum register in regmap config
  clk: meson: a1: peripherals: determine maximum register in regmap config
2024-05-03 17:25:25 -07:00
Gustavo A. R. Silva
b3e11ee3b9 wifi: rtlwifi: Remove unused structs and avoid multiple -Wfamnae warnings
Wflex-array-member-not-at-end is coming in GCC-14, and we are getting
ready to enable it globally.

So, remove unused structs and fix the following
-Wflex-array-member-not-at-end warnings:

drivers/net/wireless/realtek/rtlwifi/btcoexist/../wifi.h:1063:30: warning: structure containing a flexible array member is not at the end of another structure [-Wflex-array-member-not-at-end]
drivers/net/wireless/realtek/rtlwifi/rtl8188ee/../wifi.h:1063:30: warning: structure containing a flexible array member is not at the end of another structure [-Wflex-array-member-not-at-end]
drivers/net/wireless/realtek/rtlwifi/rtl8192c/../wifi.h:1063:30: warning: structure containing a flexible array member is not at the end of another structure [-Wflex-array-member-not-at-end]
drivers/net/wireless/realtek/rtlwifi/rtl8192ce/../wifi.h:1063:30: warning: structure containing a flexible array member is not at the end of another structure [-Wflex-array-member-not-at-end]
drivers/net/wireless/realtek/rtlwifi/rtl8192cu/../wifi.h:1063:30: warning: structure containing a flexible array member is not at the end of another structure [-Wflex-array-member-not-at-end]
drivers/net/wireless/realtek/rtlwifi/rtl8192de/../wifi.h:1063:30: warning: structure containing a flexible array member is not at the end of another structure [-Wflex-array-member-not-at-end]
drivers/net/wireless/realtek/rtlwifi/rtl8192ee/../wifi.h:1063:30: warning: structure containing a flexible array member is not at the end of another structure [-Wflex-array-member-not-at-end]
drivers/net/wireless/realtek/rtlwifi/rtl8192se/../wifi.h:1063:30: warning: structure containing a flexible array member is not at the end of another structure [-Wflex-array-member-not-at-end]
drivers/net/wireless/realtek/rtlwifi/rtl8723ae/../wifi.h:1063:30: warning: structure containing a flexible array member is not at the end of another structure [-Wflex-array-member-not-at-end]
drivers/net/wireless/realtek/rtlwifi/rtl8723be/../wifi.h:1063:30: warning: structure containing a flexible array member is not at the end of another structure [-Wflex-array-member-not-at-end]
drivers/net/wireless/realtek/rtlwifi/rtl8723com/../wifi.h:1063:30: warning: structure containing a flexible array member is not at the end of another structure [-Wflex-array-member-not-at-end]
drivers/net/wireless/realtek/rtlwifi/rtl8821ae/../wifi.h:1063:30: warning: structure containing a flexible array member is not at the end of another structure [-Wflex-array-member-not-at-end]
drivers/net/wireless/realtek/rtlwifi/wifi.h:1063:30: warning: structure containing a flexible array member is not at the end of another structure [-Wflex-array-member-not-at-end]

Signed-off-by: Gustavo A. R. Silva <gustavoars@kernel.org>
Reviewed-by: Kees Cook <keescook@chromium.org>
Acked-by: Ping-Ke Shih <pkshih@realtek.com>
Signed-off-by: Ping-Ke Shih <pkshih@realtek.com>
Link: https://msgid.link/ZjLFIa31BGPVCGh1@neat
2024-05-04 08:17:00 +08:00
Ping-Ke Shih
f506e3ee54 wifi: rtw89: correct aSIFSTime for 6GHz band
aSIFSTime is 10us for 2GHz band and 16us for 5GHz and 6GHz bands.
Originally, it doesn't consider 6GHz band and use wrong value, so correct
it accordingly.

Cc: stable@vger.kernel.org
Signed-off-by: Ping-Ke Shih <pkshih@realtek.com>
Link: https://msgid.link/20240430020515.8399-1-pkshih@realtek.com
2024-05-04 08:14:49 +08:00
Chin-Yen Lee
58ed86e166 wifi: rtw89: wow: add ARP offload feature
Add H2C command and offload template packet to allow firmware send ARP
response in WoWLAN mode. Then, firmware in WoWLAN mode can interactive
with peer that issue ARP request to query MAC address.

Signed-off-by: Chin-Yen Lee <timlee@realtek.com>
Signed-off-by: Ping-Ke Shih <pkshih@realtek.com>
Link: https://msgid.link/20240502022505.28966-13-pkshih@realtek.com
2024-05-04 08:05:43 +08:00
Chih-Kang Chang
e765370fdc wifi: rtw89: wow: support WEP cipher on WoWLAN
When using the WEP cipher, we need to add the address cam type as all
unicast mode to let firmware to work. Although WEP only set GTK in
mac80211, but we need to set both PTK and GTK information to firmware.

Signed-off-by: Chih-Kang Chang <gary.chang@realtek.com>
Signed-off-by: Ping-Ke Shih <pkshih@realtek.com>
Link: https://msgid.link/20240502022505.28966-12-pkshih@realtek.com
2024-05-04 08:05:34 +08:00
Chih-Kang Chang
940cd99625 wifi: rtw89: wow: support 802.11w PMF IGTK rekey
Once we connect to AP with 802.11w enabled, IGTK rekey happen during GTK
happen. We get IGTK IPN from mac80211 and set to firmware, and get latest
IGTK IPN from AOAC report then update to mac80211 after resume. When rekey
happen, also update new IGTK key info to mac80211. Furthermore, We
construct SA query reply packet to firmware. If firmware received SA query
request from AP can transmit reply back when suspend.

Signed-off-by: Chih-Kang Chang <gary.chang@realtek.com>
Signed-off-by: Ping-Ke Shih <pkshih@realtek.com>
Link: https://msgid.link/20240502022505.28966-11-pkshih@realtek.com
2024-05-04 08:05:15 +08:00
Chih-Kang Chang
ff53fce5c7 wifi: rtw89: wow: update latest PTK GTK info to mac80211 after resume
When resume we parse AOAC report from firmware using H2C and C2H
registers before enable interrupt, then update PTK RX PN and GTK RX PN.
After enable interrupt, we parse AOAC report using H2C and C2H commands,
then update PTK TX PN and update new GTK key info if GTK rekey during
suspend. Furthermore, We update pattern match index if wakeup by pattern.

Signed-off-by: Chih-Kang Chang <gary.chang@realtek.com>
Signed-off-by: Ping-Ke Shih <pkshih@realtek.com>
Link: https://msgid.link/20240502022505.28966-10-pkshih@realtek.com
2024-05-04 08:04:03 +08:00
Chih-Kang Chang
0291633afe wifi: rtw89: wow: add GTK rekey feature related H2C commands
Add PTK TRX IV, GTK RX IV, key encryption algorithm to H2C command to
enable GTK rekey feature.

Signed-off-by: Chih-Kang Chang <gary.chang@realtek.com>
Signed-off-by: Ping-Ke Shih <pkshih@realtek.com>
Link: https://msgid.link/20240502022505.28966-9-pkshih@realtek.com
2024-05-04 08:03:50 +08:00
Chih-Kang Chang
ed9a3c0d4d wifi: rtw89: wow: construct EAPoL packet for GTK rekey offload
We construct EAPoL packet with various encryption method, and download
to firmware. Also we add Key Encryption Key (KEK) and Key Confirmation Key
(KCK) to H2C command. Once firmware received EAPoL group rekey packet(1/2)
can TX EAPoL group rekey packet(2/2) when suspend.

Signed-off-by: Chih-Kang Chang <gary.chang@realtek.com>
Signed-off-by: Ping-Ke Shih <pkshih@realtek.com>
Link: https://msgid.link/20240502022505.28966-8-pkshih@realtek.com
2024-05-04 08:02:34 +08:00
Chih-Kang Chang
786737b6b7 wifi: rtw89: use struct to fill H2C of WoWLAN global configuration
This H2C command is used to set WoWLAN global config, and we correct
the H2C format by enlarging the H2C size to fill GTK and PTK info.
This fix is compatible with old firmware.

Signed-off-by: Chih-Kang Chang <gary.chang@realtek.com>
Signed-off-by: Ping-Ke Shih <pkshih@realtek.com>
Link: https://msgid.link/20240502022505.28966-7-pkshih@realtek.com
2024-05-04 08:01:55 +08:00
Chih-Kang Chang
9076bf365e wifi: rtw89: use struct to access firmware command h2c_dctl_sec_cam_v1
This H2C command set key information into security CAM including key
index, entry index and valid map. No logic is changed.

Signed-off-by: Chih-Kang Chang <gary.chang@realtek.com>
Signed-off-by: Ping-Ke Shih <pkshih@realtek.com>
Link: https://msgid.link/20240502022505.28966-6-pkshih@realtek.com
2024-05-04 08:01:13 +08:00
Chih-Kang Chang
803a96f477 wifi: rtw89: wow: prepare PTK GTK info from mac80211
Get the PTK and PTK TRX PN value and transfer to IV value, these
values will used by firmware to generate packets with correct IV value.

Signed-off-by: Chih-Kang Chang <gary.chang@realtek.com>
Signed-off-by: Ping-Ke Shih <pkshih@realtek.com>
Link: https://msgid.link/20240502022505.28966-5-pkshih@realtek.com
2024-05-04 07:59:55 +08:00
Chih-Kang Chang
92790c4e50 wifi: rtw89: wow: parsing Auth Key Management from associate request
Need Auth Key Management(AKM) to let firmware to generate appropriate
EAPoL packet for GTK rekey. The AKM is present in the association request
RSN IE to indicate which cipher that station selected.

Signed-off-by: Chih-Kang Chang <gary.chang@realtek.com>
Signed-off-by: Ping-Ke Shih <pkshih@realtek.com>
Link: https://msgid.link/20240502022505.28966-4-pkshih@realtek.com
2024-05-04 07:58:28 +08:00
Chih-Kang Chang
baaf806e46 wifi: rtw89: wow: refine WoWLAN flows of HCI interrupts and low power mode
After enabling packet offload, the TX will be stuck after resume from
WoWLAN mode. And the 8852c gets error messages like

rtw89_8852ce 0000:04:00.0: No busy txwd pages available
rtw89_8852ce 0000:04:00.0: queue 0 txwd 100 is not idle
rtw89_8852ce 0000:04:00.0: queue 0 txwd 101 is not idle
rtw89_8852ce 0000:04:00.0: queue 0 txwd 102 is not idle
rtw89_8852ce 0000:04:00.0: queue 0 txwd 103 is not idle

If suspend/resume many times that firmware will download failed and
disconnection.

To fix these issues, We removed the rtw89_hci_disable_intr() and
rtw89_hci_enable_intr() during rtw89_wow_swap_fw() to prevent add packet
offload can't receive c2h back due to interrupt disable. Only 8852C and
8922A needs to disable interrupt before downloading fw.

Furthermore, we avoid using low power HCI mode on WoWLAN mode, to prevent
interrupt enabled, then get interrupt and calculate RXBD mismatched due to
software RXBD index already reset but hardware RXBD index not yet.

Fixes: 5c12bb66b7 ("wifi: rtw89: refine packet offload flow")
Signed-off-by: Chih-Kang Chang <gary.chang@realtek.com>
Signed-off-by: Ping-Ke Shih <pkshih@realtek.com>
Link: https://msgid.link/20240502022505.28966-3-pkshih@realtek.com
2024-05-04 07:58:18 +08:00
Chin-Yen Lee
a79264e8c7 wifi: rtw89: wow: send RFK pre-nofity H2C command in WoWLAN mode
802.11be WiFi chips need a RFK (RF calibration) notify H2C command after
downloading WoWLAN firmware to make sure RF TX/RX work fine when leaving
power save mode, so add it to correct RF TX/RX in WoWLAN mode.

Signed-off-by: Chin-Yen Lee <timlee@realtek.com>
Signed-off-by: Ping-Ke Shih <pkshih@realtek.com>
Link: https://msgid.link/20240502022505.28966-2-pkshih@realtek.com
2024-05-04 07:54:19 +08:00
Linus Torvalds
7367539ad4 cxl fix for v6.9-rc7
- Add missing RCH support for endpoint access_coordinate calculation
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Merge tag 'cxl-fixes-6.9-rc7' of git://git.kernel.org/pub/scm/linux/kernel/git/cxl/cxl

Pull cxl fix from Dave Jiang:
 "Add missing RCH support for endpoint access_coordinate calculation.

  A late bug was reported by Robert Richter that the Restricted CXL Host
  (RCH) support was missing in the CXL endpoint access_coordinate
  calculation.

  The missing support causes the topology iterator to stumble over a
  NULL pointer and triggers a kernel OOPS on a platform with CXL 1.1
  support.

  The fix bypasses RCH topology as the access_coordinate calculation is
  not necessary since RCH does not support hotplug and the memory region
  exported should be covered by the HMAT table already.

  A unit test is also added to cxl_test to check against future
  regressions on the topology iterator"

* tag 'cxl-fixes-6.9-rc7' of git://git.kernel.org/pub/scm/linux/kernel/git/cxl/cxl:
  cxl: Fix cxl_endpoint_get_perf_coordinate() support for RCH
2024-05-03 16:21:05 -07:00
Mina Almasry
173e7622cc Revert "net: mirror skb frag ref/unref helpers"
This reverts commit a580ea994f.

This revert is to resolve Dragos's report of page_pool leak here:
https://lore.kernel.org/lkml/20240424165646.1625690-2-dtatulea@nvidia.com/

The reverted patch interacts very badly with commit 2cc3aeb5ec ("skbuff:
Fix a potential race while recycling page_pool packets"). The reverted
commit hopes that the pp_recycle + is_pp_page variables do not change
between the skb_frag_ref and skb_frag_unref operation. If such a change
occurs, the skb_frag_ref/unref will not operate on the same reference type.
In the case of Dragos's report, the grabbed ref was a pp ref, but the unref
was a page ref, because the pp_recycle setting on the skb was changed.

Attempting to fix this issue on the fly is risky. Lets revert and I hope
to reland this with better understanding and testing to ensure we don't
regress some edge case while streamlining skb reffing.

Fixes: a580ea994f ("net: mirror skb frag ref/unref helpers")
Reported-by: Dragos Tatulea <dtatulea@nvidia.com>
Signed-off-by: Mina Almasry <almasrymina@google.com>
Link: https://lore.kernel.org/r/20240502175423.2456544-1-almasrymina@google.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2024-05-03 16:05:53 -07:00
David Wei
5bfadc5737 bnxt: fix bnxt_get_avail_msix() returning negative values
Current net-next/main does not boot for older chipsets e.g. Stratus.

Sample dmesg:
[   11.368315] bnxt_en 0000:02:00.0 (unnamed net_device) (uninitialized): Able to reserve only 0 out of 9 requested RX rings
[   11.390181] bnxt_en 0000:02:00.0 (unnamed net_device) (uninitialized): Unable to reserve tx rings
[   11.438780] bnxt_en 0000:02:00.0 (unnamed net_device) (uninitialized): 2nd rings reservation failed.
[   11.487559] bnxt_en 0000:02:00.0 (unnamed net_device) (uninitialized): Not enough rings available.
[   11.506012] bnxt_en 0000:02:00.0: probe with driver bnxt_en failed with error -12

This is caused by bnxt_get_avail_msix() returning a negative value for
these chipsets not using the new resource manager i.e. !BNXT_NEW_RM.
This in turn causes hwr.cp in __bnxt_reserve_rings() to be set to 0.

In the current call stack, __bnxt_reserve_rings() is called from
bnxt_set_dflt_rings() before bnxt_init_int_mode(). Therefore,
bp->total_irqs is always 0 and for !BNXT_NEW_RM bnxt_get_avail_msix()
always returns a negative number.

Historically, MSIX vectors were requested by the RoCE driver during
run-time and bnxt_get_avail_msix() was used for this purpose. Today,
RoCE MSIX vectors are statically allocated. bnxt_get_avail_msix() should
only be called for the BNXT_NEW_RM() case to reserve the MSIX ahead of
time for RoCE use.

bnxt_get_avail_msix() is also be simplified to handle the BNXT_NEW_RM()
case only.

Fixes: d630624ebd ("bnxt_en: Utilize ulp client resources if RoCE is not registered")
Signed-off-by: David Wei <dw@davidwei.uk>
Reviewed-by: Michael Chan <michael.chan@broadcom.com>
Link: https://lore.kernel.org/r/20240502203757.3761827-1-dw@davidwei.uk
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2024-05-03 16:04:04 -07:00
Potnuri Bharat Teja
fa870b45b0 MAINTAINERS: update cxgb4 and cxgb3 network drivers maintainer
Add myself(Bharat) as maintainer for cxgb4 and cxgb3 network drivers.

Signed-off-by: Potnuri Bharat Teja <bharat@chelsio.com>
Link: https://lore.kernel.org/r/20240502184209.2723379-1-bharat@chelsio.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2024-05-03 15:58:54 -07:00