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Author SHA1 Message Date
Chen-Yu Tsai
5f93c59e60
regulator: fixed: Fix incorrectly formatted kerneldoc "Return" section
kernel-doc complains about missing "Return" section for kerneldoc of
of_get_fixed_voltage_config(). The kerneldoc has a description
about the return values, just not in the format kernel-doc wants.

Convert it to use the proper "Return:" section header. The existing
description have been reworded and moved around to fit the grammar and
formatting.

Signed-off-by: Chen-Yu Tsai <wenst@chromium.org>
Reported-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Reviewed-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Link: https://patch.msgid.link/20240829085131.1361701-7-wenst@chromium.org
Signed-off-by: Mark Brown <broonie@kernel.org>
2024-08-29 14:20:27 +01:00
Chen-Yu Tsai
dac41d59f2
regulator: of: Fix incorrectly formatted kerneldoc "Return" sections
kernel-doc complains about missing "Return" section for many documented
functions in the regulator OF-specific code. These all have descriptions
about the return values, just not in the format kernel-doc wants.

Convert these to use the proper "Return:" section header. The existing
descriptions have been reworded and moved around to fit the grammar and
formatting.

Signed-off-by: Chen-Yu Tsai <wenst@chromium.org>
Reported-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Reviewed-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Link: https://patch.msgid.link/20240829085131.1361701-6-wenst@chromium.org
Signed-off-by: Mark Brown <broonie@kernel.org>
2024-08-29 14:20:26 +01:00
Chen-Yu Tsai
4ac204ff2d
regulator: core: Add missing kerneldoc "Return" sections
kernel-doc complains about missing "Return" section for many documented
functions in the regulator core. Some with free-form return value
descriptions have been fixed in the previous patch. The remaining are
completely missing any mention of return values.

Add "Return" sections to these kerneldoc blocks with basic descriptions.
In a few cases where the functions don't call even more functions and
the error numbers are known, those are documented in detail.

Signed-off-by: Chen-Yu Tsai <wenst@chromium.org>
Reported-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Reviewed-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Link: https://patch.msgid.link/20240829085131.1361701-5-wenst@chromium.org
Signed-off-by: Mark Brown <broonie@kernel.org>
2024-08-29 14:20:25 +01:00
Chen-Yu Tsai
f746af13dd
regulator: core: Fix incorrectly formatted kerneldoc "Return" sections
kernel-doc complains about missing "Return" section for many documented
functions in the regulator core. Many of them actually have descriptions
about the return values, just not in the format kernel-doc wants.

Convert these to use the proper "Return:" section header. The existing
descriptions have been reworded and moved around to fit the grammar and
formatting.

In a few cases where the functions don't call even more functions
and the error numbers are known, those are documented in detail.

Signed-off-by: Chen-Yu Tsai <wenst@chromium.org>
Reported-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Reviewed-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Link: https://patch.msgid.link/20240829085131.1361701-4-wenst@chromium.org
Signed-off-by: Mark Brown <broonie@kernel.org>
2024-08-29 14:20:24 +01:00
Chen-Yu Tsai
753b9d86ad
regulator: core: Fix regulator_is_supported_voltage() kerneldoc return value
The kerneldoc for regulator_is_supported_voltage() states that the
return value is a boolean. That is not correct, as it could return an
error number if the check failed.

Fix the description by expanding it to cover the valid return values and
error conditions. The description is also converted to a proper "Return"
section.

Fixes: c5f3939b8f ("regulator: core: Support fixed voltages in regulator_is_supported_voltage()")
Signed-off-by: Chen-Yu Tsai <wenst@chromium.org>
Reported-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Reviewed-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Link: https://patch.msgid.link/20240829085131.1361701-3-wenst@chromium.org
Signed-off-by: Mark Brown <broonie@kernel.org>
2024-08-29 14:20:23 +01:00
Chen-Yu Tsai
caa08dd8cd
regulator: core: Fix short description for _regulator_check_status_enabled()
kernel-doc complains that _regulator_check_status_enabled() is missing a
short description.

Since the current description is already quite short, just trim it a bit
more and use it as the short description.

Fixes: f7d7ad42a9 ("regulator: Allow regulators to verify enabled during enable()")
Signed-off-by: Chen-Yu Tsai <wenst@chromium.org>
Reported-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Reviewed-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Link: https://patch.msgid.link/20240829085131.1361701-2-wenst@chromium.org
Signed-off-by: Mark Brown <broonie@kernel.org>
2024-08-29 14:20:22 +01:00
Rob Herring (Arm)
dd72a3b8a6
regulator: qcom_spmi: Use of_property_read_bool()
Use of_property_read_bool() to read boolean properties rather than
of_find_property(). This is part of a larger effort to remove callers
of of_find_property() and similar functions. of_find_property() leaks
the DT property pointer which is a problem for dynamically allocated
nodes which may be freed.

Signed-off-by: Rob Herring (Arm) <robh@kernel.org>
Link: https://patch.msgid.link/20240828130056.3481050-2-robh@kernel.org
Signed-off-by: Mark Brown <broonie@kernel.org>
2024-08-28 21:52:45 +01:00
Rob Herring (Arm)
7540bd3398
regulator: qcom_spmi: Drop unnecessary of_find_property() call
There's no need to check for presence of "qcom,saw-reg" before parsing
it. If the property doesn't exist, parsing it will return NULL.

Signed-off-by: Rob Herring (Arm) <robh@kernel.org>
Link: https://patch.msgid.link/20240828130056.3481050-1-robh@kernel.org
Signed-off-by: Mark Brown <broonie@kernel.org>
2024-08-28 21:52:44 +01:00
Mark Brown
bff5ca8379
regulator: Minor cleanups
Merge series from Chen-Yu Tsai <wenst@chromium.org>:

Here are some cleanups for some bits that I saw while reworking my I2C
device tree component prober to use of_regulator_bulk_get_all().
These are not directly related to that series, so I send them
separately here.
2024-08-22 21:58:11 +01:00
Krzysztof Kozlowski
b8195520e8
regulator: s2mps11: use scoped memory allocation to simplify probe
Allocate the memory with scoped/cleanup.h to reduce error handling (less
error paths) and make the code a bit simpler.

Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Link: https://patch.msgid.link/20240822161231.106744-1-krzysztof.kozlowski@linaro.org
Signed-off-by: Mark Brown <broonie@kernel.org>
2024-08-22 17:52:31 +01:00
Chen-Yu Tsai
bfefa214d1
regulator: Fully clean up on error in of_regulator_bulk_get_all()
Currently in of_regulator_bulk_get_all(), if any regulator request
fails, the error path releases all regulators already requested,
but leaves the |struct regulator_bulk_data| memory to the caller
to free, and also leaves the regulator consumer pointers dangling.
The latter behavior is not documented, and may not be what the
caller is expecting.

Instead, explicitly clean up everything on error, and make it clear
that the result pointer is only update if the whole request succeeds.

Signed-off-by: Chen-Yu Tsai <wenst@chromium.org>
Link: https://patch.msgid.link/20240822072047.3097740-4-wenst@chromium.org
Signed-off-by: Mark Brown <broonie@kernel.org>
2024-08-22 13:34:30 +01:00
Chen-Yu Tsai
395a41a1d3
regulator: Return actual error in of_regulator_bulk_get_all()
If regulator_get() in of_regulator_bulk_get_all() returns an error, that
error gets overridden and -EINVAL is always passed out. This masks probe
deferral requests and likely won't work properly in all cases.

Fix this by letting of_regulator_bulk_get_all() return the original
error code.

Fixes: 27b9ecc7a9 ("regulator: Add of_regulator_bulk_get_all")
Signed-off-by: Chen-Yu Tsai <wenst@chromium.org>
Link: https://patch.msgid.link/20240822072047.3097740-3-wenst@chromium.org
Signed-off-by: Mark Brown <broonie@kernel.org>
2024-08-22 13:34:29 +01:00
Chen-Yu Tsai
ad9d7a8290
regulator: Clarify error message for "id == NULL" in _regulator_get()
The original error message simply said "get() with no identifier"
without any context as to what was requested or what device the
request was related to. The only thing the user or developer could
do was grep for the message in the full source tree.

Amend the error message to be more specific, and also use dev_*
to associate the error message with a device.

Signed-off-by: Chen-Yu Tsai <wenst@chromium.org>
Link: https://patch.msgid.link/20240822072047.3097740-2-wenst@chromium.org
Signed-off-by: Mark Brown <broonie@kernel.org>
2024-08-22 13:34:28 +01:00
Mark Brown
5a38089fe4
regulator: Use scoped device node handling to simplify
Merge series from Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>:

Make code a bit smaller/simpler, with less of_node_put() thanks to
cleanup.h.
2024-08-15 14:35:02 +01:00
Bartosz Golaszewski
39b8cb4e1b
regulator: dt-bindings: qcom,qca6390-pmu: document the swctrl-gpios property
Add support for the swctrl-gpios property which contains the phandle to
the GPIO indicating the clock supply to the BT module.

Signed-off-by: Bartosz Golaszewski <bartosz.golaszewski@linaro.org>
Link: https://patch.msgid.link/20240813185827.154779-3-brgl@bgdev.pl
Signed-off-by: Mark Brown <broonie@kernel.org>
2024-08-14 18:22:09 +01:00
Bartosz Golaszewski
2416d2f87b
regulator: dt-bindings: qcom,qca6390-pmu: document WCN6855
Add description of the PMU of the WCN6855 model.

Signed-off-by: Bartosz Golaszewski <bartosz.golaszewski@linaro.org>
Link: https://patch.msgid.link/20240813185827.154779-2-brgl@bgdev.pl
Signed-off-by: Mark Brown <broonie@kernel.org>
2024-08-14 18:22:08 +01:00
Bartosz Golaszewski
d275e9918c
regulator: dt-bindings: qcom,qca6390-pmu: fix the description for bt-enable-gpios
The Bluetooth module is obviously not an ath11k so drop the word.

Fixes: b5cb34c93b ("regulator: dt-bindings: describe the PMU module of the QCA6390 package")
Signed-off-by: Bartosz Golaszewski <bartosz.golaszewski@linaro.org>
Link: https://patch.msgid.link/20240813185827.154779-1-brgl@bgdev.pl
Signed-off-by: Mark Brown <broonie@kernel.org>
2024-08-14 18:22:07 +01:00
Krzysztof Kozlowski
99cf5db9cd
regulator: scmi: Simplify with scoped for each OF child loop
Use scoped for_each_available_child_of_node_scoped() when iterating over
device nodes to make code a bit simpler.

Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Link: https://patch.msgid.link/20240814-cleanup-h-of-node-put-regulator-v1-7-87151088b883@linaro.org
Signed-off-by: Mark Brown <broonie@kernel.org>
2024-08-14 18:21:48 +01:00
Krzysztof Kozlowski
d4cd75b8ef
regulator: qcom-smd: Simplify with scoped for each OF child loop
Use scoped for_each_available_child_of_node_scoped() when iterating over
device nodes to make code a bit simpler.

Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Link: https://patch.msgid.link/20240814-cleanup-h-of-node-put-regulator-v1-6-87151088b883@linaro.org
Signed-off-by: Mark Brown <broonie@kernel.org>
2024-08-14 18:21:47 +01:00
Krzysztof Kozlowski
17636d443f
regulator: qcom-rpmh: Simplify with scoped for each OF child loop
Use scoped for_each_available_child_of_node_scoped() when iterating over
device nodes to make code a bit simpler.

Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Link: https://patch.msgid.link/20240814-cleanup-h-of-node-put-regulator-v1-5-87151088b883@linaro.org
Signed-off-by: Mark Brown <broonie@kernel.org>
2024-08-14 18:21:46 +01:00
Krzysztof Kozlowski
34a3f95941
regulator: s5m8767: Use scoped device node handling to simplify error paths
Obtain the device node reference with scoped/cleanup.h to reduce error
handling and make the code a bit simpler.

Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Link: https://patch.msgid.link/20240814-cleanup-h-of-node-put-regulator-v1-4-87151088b883@linaro.org
Signed-off-by: Mark Brown <broonie@kernel.org>
2024-08-14 18:21:45 +01:00
Krzysztof Kozlowski
ea13bd391d
regulator: max8997: Use scoped device node handling to simplify error paths
Obtain the device node reference with scoped/cleanup.h to reduce error
handling and make the code a bit simpler.

Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Link: https://patch.msgid.link/20240814-cleanup-h-of-node-put-regulator-v1-3-87151088b883@linaro.org
Signed-off-by: Mark Brown <broonie@kernel.org>
2024-08-14 18:21:44 +01:00
Krzysztof Kozlowski
f372c262d4
regulator: bd96801: Use scoped device node handling to simplify error paths
Obtain the device node reference with scoped/cleanup.h and use scoped
for_each_child_of_node_scoped() to reduce error handling and make the
code a bit simpler.  Add also brackets {} over outer for loop for code
readability.

Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Link: https://patch.msgid.link/20240814-cleanup-h-of-node-put-regulator-v1-2-87151088b883@linaro.org
Signed-off-by: Mark Brown <broonie@kernel.org>
2024-08-14 18:21:43 +01:00
Krzysztof Kozlowski
83c7cdeef5
regulator: bd718x7: Use scoped device node handling to simplify error paths
Obtain the device node reference with scoped/cleanup.h and use scoped
for_each_child_of_node_scoped() to reduce error handling and make the
code a bit simpler.

Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Link: https://patch.msgid.link/20240814-cleanup-h-of-node-put-regulator-v1-1-87151088b883@linaro.org
Signed-off-by: Mark Brown <broonie@kernel.org>
2024-08-14 18:21:42 +01:00
Mark Brown
b31274caf3
Add input voltage suppliers for PMIC MCP16502
Merge series from Andrei Simion <andrei.simion@microchip.com>:

In this series of patches, support for the *-supply property [1]  is added
(correlated with supply_name [2]) from the core regulator.
Link [1]: https://github.com/torvalds/linux/blob/master/drivers/regulator/core.c#L471
Link [2]: https://github.com/torvalds/linux/blob/master/drivers/regulator/core.c#L2064

I modified the mcp16502.c driver and the dts that use this PMIC.
We added these improvements to provide a complete description of the board power scheme.
2024-08-13 15:51:35 +01:00
Andrei Simion
bf5ba94fa0
regulator: dt-bindings: microchip,mcp16502: Add voltage input supply documentation
Update the yaml schema with info about input supply phandle for
each buck and ldo according with the PMIC MCP16502 Datasheet.

Signed-off-by: Andrei Simion <andrei.simion@microchip.com>
Link: https://patch.msgid.link/20240812135231.43744-3-andrei.simion@microchip.com
Signed-off-by: Mark Brown <broonie@kernel.org>
2024-08-13 12:41:45 +01:00
Andrei Simion
8612898350
regulator: mcp16502: Add supplier for regulators
Based on the datasheet [1] (Block Diagram) PVIN[1-4] and LVIN
represent the input voltage supply for each BUCKs respective LDOs.
Update the driver to align with the datasheet [1].

[1]: https://ww1.microchip.com/downloads/aemDocuments/documents/APID/ProductDocuments/DataSheets/MCP16502-Data-Sheet-DS20006275.pdf

Co-developed-by: Mihai Sain <mihai.sain@microchip.com>
Signed-off-by: Mihai Sain <mihai.sain@microchip.com>
Signed-off-by: Andrei Simion <andrei.simion@microchip.com>
Link: https://patch.msgid.link/20240812135231.43744-2-andrei.simion@microchip.com
Signed-off-by: Mark Brown <broonie@kernel.org>
2024-08-13 12:41:44 +01:00
Macpaul Lin
1b4ec561b4
regulator: dt-bindings: mediatek,mt6397-regulator: convert to YAML
Convert the MediaTek MT6397 regulator bindings to DT schema.

Signed-off-by: Sen Chu <sen.chu@mediatek.com>
Signed-off-by: Macpaul Lin <macpaul.lin@mediatek.com>
Acked-by: Conor Dooley <conor.dooley@microchip.com>
Link: https://patch.msgid.link/20240807091738.18387-1-macpaul.lin@mediatek.com
Signed-off-by: Mark Brown <broonie@kernel.org>
2024-08-07 23:46:42 +01:00
Christophe JAILLET
08b856b38c
regulator: bd9576: Constify struct linear_range
'struct linear_range' are not modified in these drivers.

Constifying this structure moves some data to a read-only section, so
increase overall security.

This is also more consistent with the other struct linear_range declaration
above.

On a x86_64, with allmodconfig, as an example:
Before:
======
   text	   data	    bss	    dec	    hex	filename
  20767	   4544	      0	  25311	   62df	drivers/regulator/bd9576-regulator.o

After:
=====
   text	   data	    bss	    dec	    hex	filename
  21023	   4288	      0	  25311	   62df	drivers/regulator/bd9576-regulator.o

Signed-off-by: Christophe JAILLET <christophe.jaillet@wanadoo.fr>
Link: https://patch.msgid.link/a4e37991ea7b47145ab033128c8dd49f73a983e6.1722949232.git.christophe.jaillet@wanadoo.fr
Signed-off-by: Mark Brown <broonie@kernel.org>
2024-08-06 15:24:01 +01:00
Rob Herring (Arm)
b03695d952
regulator: Use of_property_read_bool()
Use of_property_read_bool() to read boolean properties rather than
of_get_property(). This is part of a larger effort to remove callers
of of_get_property() and similar functions. of_get_property() leaks
the DT property data pointer which is a problem for dynamically
allocated nodes which may be freed.

Signed-off-by: Rob Herring (Arm) <robh@kernel.org>
Link: https://patch.msgid.link/20240731191312.1710417-24-robh@kernel.org
Signed-off-by: Mark Brown <broonie@kernel.org>
2024-08-01 12:50:11 +01:00
Yue Haibing
cd7d47c576
regulator: max77857: Make max77857_id static
Fix sparse warning:
drivers/regulator/max77857-regulator.c:430:28: warning: symbol 'max77857_id' was not declared. Should it be static?

max77857_id is not used outside the source file. Make it static.

Signed-off-by: Yue Haibing <yuehaibing@huawei.com>
Link: https://patch.msgid.link/20240801114536.472796-1-yuehaibing@huawei.com
Signed-off-by: Mark Brown <broonie@kernel.org>
2024-08-01 12:50:10 +01:00
Chen Ni
3078425f63
regulator: rt5120: Convert comma to semicolon
Replace a comma between expression statements by a semicolon.

Fixes: c0216c0e68 ("regulator: rt5120: Add PMIC regulator support")
Signed-off-by: Chen Ni <nichen@iscas.ac.cn>
Reviewed-by: ChiYuan Huang <cy_huang@richtek.com>
Link: https://patch.msgid.link/20240716084659.1252690-1-nichen@iscas.ac.cn
Signed-off-by: Mark Brown <broonie@kernel.org>
2024-07-29 01:19:05 +01:00
Chen Ni
291f854eca
regulator: wm831x-isink: Convert comma to semicolon
Replace a comma between expression statements by a semicolon.

Fixes: d48acfd037 ("regulator: wm831x-isink: Convert to use regulator_set/get_current_limit_regmap")
Signed-off-by: Chen Ni <nichen@iscas.ac.cn>
Acked-by: Charles Keepax <ckeepax@opensource.cirrus.com>
Link: https://patch.msgid.link/20240716085115.1252817-1-nichen@iscas.ac.cn
Signed-off-by: Mark Brown <broonie@kernel.org>
2024-07-29 01:19:04 +01:00
Dan Carpenter
f0aaae1a58
regulator: bd96801: Delete unnecessary check in probe()
The "idesc" pointer points to the middle of rdesc[] array so it can't be
NULL.  Also rdesc isn't NULL.  Delete the check.

Signed-off-by: Dan Carpenter <dan.carpenter@linaro.org>
Link: https://patch.msgid.link/01cd578f-127b-4c8b-a8c6-5e11a0a2555c@stanley.mountain
Signed-off-by: Mark Brown <broonie@kernel.org>
2024-07-29 01:19:04 +01:00
Linus Torvalds
8400291e28 Linux 6.11-rc1 v6.11-rc1 2024-07-28 14:19:55 -07:00
Linus Torvalds
a0c04bd55a Kbuild fixes for v6.11
- Fix RPM package build error caused by an incorrect locale setup
 
  - Mark modules.weakdep as ghost in RPM package
 
  - Fix the odd combination of -S and -c in stack protector scripts, which
    is an error with the latest Clang
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Merge tag 'kbuild-fixes-v6.11' of git://git.kernel.org/pub/scm/linux/kernel/git/masahiroy/linux-kbuild

Pull Kbuild fixes from Masahiro Yamada:

 - Fix RPM package build error caused by an incorrect locale setup

 - Mark modules.weakdep as ghost in RPM package

 - Fix the odd combination of -S and -c in stack protector scripts,
   which is an error with the latest Clang

* tag 'kbuild-fixes-v6.11' of git://git.kernel.org/pub/scm/linux/kernel/git/masahiroy/linux-kbuild:
  kbuild: Fix '-S -c' in x86 stack protector scripts
  kbuild: rpm-pkg: ghost modules.weakdep file
  kbuild: rpm-pkg: Fix C locale setup
2024-07-28 14:02:48 -07:00
Linus Torvalds
017fa3e891 minmax: simplify and clarify min_t()/max_t() implementation
This simplifies the min_t() and max_t() macros by no longer making them
work in the context of a C constant expression.

That means that you can no longer use them for static initializers or
for array sizes in type definitions, but there were only a couple of
such uses, and all of them were converted (famous last words) to use
MIN_T/MAX_T instead.

Cc: David Laight <David.Laight@aculab.com>
Cc: Lorenzo Stoakes <lorenzo.stoakes@oracle.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2024-07-28 13:50:01 -07:00
Linus Torvalds
4477b39c32 minmax: add a few more MIN_T/MAX_T users
Commit 3a7e02c040 ("minmax: avoid overly complicated constant
expressions in VM code") added the simpler MIN_T/MAX_T macros in order
to avoid some excessive expansion from the rather complicated regular
min/max macros.

The complexity of those macros stems from two issues:

 (a) trying to use them in situations that require a C constant
     expression (in static initializers and for array sizes)

 (b) the type sanity checking

and MIN_T/MAX_T avoids both of these issues.

Now, in the whole (long) discussion about all this, it was pointed out
that the whole type sanity checking is entirely unnecessary for
min_t/max_t which get a fixed type that the comparison is done in.

But that still leaves min_t/max_t unnecessarily complicated due to
worries about the C constant expression case.

However, it turns out that there really aren't very many cases that use
min_t/max_t for this, and we can just force-convert those.

This does exactly that.

Which in turn will then allow for much simpler implementations of
min_t()/max_t().  All the usual "macros in all upper case will evaluate
the arguments multiple times" rules apply.

We should do all the same things for the regular min/max() vs MIN/MAX()
cases, but that has the added complexity of various drivers defining
their own local versions of MIN/MAX, so that needs another level of
fixes first.

Link: https://lore.kernel.org/all/b47fad1d0cf8449886ad148f8c013dae@AcuMS.aculab.com/
Cc: David Laight <David.Laight@aculab.com>
Cc: Lorenzo Stoakes <lorenzo.stoakes@oracle.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2024-07-28 13:41:14 -07:00
Linus Torvalds
7e2d0ba732 This pull request contains updates (actually, just fixes) for UBI and UBIFS:
- Many fixes for power-cut issues by Zhihao Cheng
 - Another ubiblock error path fix
 - ubiblock section mismatch fix
 - Misc fixes all over the place
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Merge tag 'ubifs-for-linus-6.11-rc1-take2' of git://git.kernel.org/pub/scm/linux/kernel/git/rw/ubifs

Pull UBI and UBIFS updates from Richard Weinberger:

 - Many fixes for power-cut issues by Zhihao Cheng

 - Another ubiblock error path fix

 - ubiblock section mismatch fix

 - Misc fixes all over the place

* tag 'ubifs-for-linus-6.11-rc1-take2' of git://git.kernel.org/pub/scm/linux/kernel/git/rw/ubifs:
  ubi: Fix ubi_init() ubiblock_exit() section mismatch
  ubifs: add check for crypto_shash_tfm_digest
  ubifs: Fix inconsistent inode size when powercut happens during appendant writing
  ubi: block: fix null-pointer-dereference in ubiblock_create()
  ubifs: fix kernel-doc warnings
  ubifs: correct UBIFS_DFS_DIR_LEN macro definition and improve code clarity
  mtd: ubi: Restore missing cleanup on ubi_init() failure path
  ubifs: dbg_orphan_check: Fix missed key type checking
  ubifs: Fix unattached inode when powercut happens in creating
  ubifs: Fix space leak when powercut happens in linking tmpfile
  ubifs: Move ui->data initialization after initializing security
  ubifs: Fix adding orphan entry twice for the same inode
  ubifs: Remove insert_dead_orphan from replaying orphan process
  Revert "ubifs: ubifs_symlink: Fix memleak of inode->i_link in error path"
  ubifs: Don't add xattr inode into orphan area
  ubifs: Fix unattached xattr inode if powercut happens after deleting
  mtd: ubi: avoid expensive do_div() on 32-bit machines
  mtd: ubi: make ubi_class constant
  ubi: eba: properly rollback inside self_check_eba
2024-07-28 11:51:51 -07:00
Nathan Chancellor
3415b10a03 kbuild: Fix '-S -c' in x86 stack protector scripts
After a recent change in clang to stop consuming all instances of '-S'
and '-c' [1], the stack protector scripts break due to the kernel's use
of -Werror=unused-command-line-argument to catch cases where flags are
not being properly consumed by the compiler driver:

  $ echo | clang -o - -x c - -S -c -Werror=unused-command-line-argument
  clang: error: argument unused during compilation: '-c' [-Werror,-Wunused-command-line-argument]

This results in CONFIG_STACKPROTECTOR getting disabled because
CONFIG_CC_HAS_SANE_STACKPROTECTOR is no longer set.

'-c' and '-S' both instruct the compiler to stop at different stages of
the pipeline ('-S' after compiling, '-c' after assembling), so having
them present together in the same command makes little sense. In this
case, the test wants to stop before assembling because it is looking at
the textual assembly output of the compiler for either '%fs' or '%gs',
so remove '-c' from the list of arguments to resolve the error.

All versions of GCC continue to work after this change, along with
versions of clang that do or do not contain the change mentioned above.

Cc: stable@vger.kernel.org
Fixes: 4f7fd4d7a7 ("[PATCH] Add the -fstack-protector option to the CFLAGS")
Fixes: 60a5317ff0 ("x86: implement x86_32 stack protector")
Link: 6461e53781 [1]
Signed-off-by: Nathan Chancellor <nathan@kernel.org>
Signed-off-by: Masahiro Yamada <masahiroy@kernel.org>
2024-07-29 03:47:00 +09:00
Richard Weinberger
92a286e902 ubi: Fix ubi_init() ubiblock_exit() section mismatch
Since ubiblock_exit() is now called from an init function,
the __exit section no longer makes sense.

Cc: Ben Hutchings <bwh@kernel.org>
Reported-by: kernel test robot <lkp@intel.com>
Closes: https://lore.kernel.org/oe-kbuild-all/202407131403.wZJpd8n2-lkp@intel.com/
Signed-off-by: Richard Weinberger <richard@nod.at>
Reviewed-by: Zhihao Cheng <chengzhihao1@huawei.com>
2024-07-28 20:08:25 +02:00
Linus Torvalds
e172f1e906 turbostat release 2024.07.26
Enable turbostat extensions to add both perf and PMT
 (Intel Platform Monitoring Technology) counters via the cmdline.
 
 Demonstrate PMT access with built-in support for Meteor Lake's Die%c6 counter.
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Merge tag 'v6.11-merge' of git://git.kernel.org/pub/scm/linux/kernel/git/lenb/linux

Pull turbostat updates from Len Brown:

 - Enable turbostat extensions to add both perf and PMT (Intel
   Platform Monitoring Technology) counters via the cmdline

 - Demonstrate PMT access with built-in support for Meteor Lake's
   Die C6 counter

* tag 'v6.11-merge' of git://git.kernel.org/pub/scm/linux/kernel/git/lenb/linux:
  tools/power turbostat: version 2024.07.26
  tools/power turbostat: Include umask=%x in perf counter's config
  tools/power turbostat: Document PMT in turbostat.8
  tools/power turbostat: Add MTL's PMT DC6 builtin counter
  tools/power turbostat: Add early support for PMT counters
  tools/power turbostat: Add selftests for added perf counters
  tools/power turbostat: Add selftests for SMI, APERF and MPERF counters
  tools/power turbostat: Move verbose counter messages to level 2
  tools/power turbostat: Move debug prints from stdout to stderr
  tools/power turbostat: Fix typo in turbostat.8
  tools/power turbostat: Add perf added counter example to turbostat.8
  tools/power turbostat: Fix formatting in turbostat.8
  tools/power turbostat: Extend --add option with perf counters
  tools/power turbostat: Group SMI counter with APERF and MPERF
  tools/power turbostat: Add ZERO_ARRAY for zero initializing builtin array
  tools/power turbostat: Replace enum rapl_source and cstate_source with counter_source
  tools/power turbostat: Remove anonymous union from rapl_counter_info_t
  tools/power/turbostat: Switch to new Intel CPU model defines
2024-07-28 10:52:15 -07:00
Linus Torvalds
e62f81bbd2 CXL for v6.11 merge window
New Changes:
 - Refactor to a common struct for DRAM and general media CXL events
 - Add abstract distance calculation support for CXL
 - Add CXL maturity map documentation to detail current state of CXL enabling
 - Add warning on mixed CXL VH and RCH/RCD hierachy to inform unsupported config
 - Replace ENXIO with EBUSY for inject poison limit reached via debugfs
 - Replace ENXIO with EBUSY for inject poison cxl-test support
 - XOR math fixup for DPA to SPA translation. Current math works for MODULO arithmetic
   where HPA==SPA, however not for XOR decode.
 - Move pci config read in cxl_dvsec_rr_decode() to avoid unnecessary acess
 
 Fixes:
 - Add a fix to address race condition in CXL memory hotplug notifier
 - Add missing MODULE_DESCRIPTION() for CXL modules
 - Fix incorrect vendor debug UUID define
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Merge tag 'cxl-for-6.11' of git://git.kernel.org/pub/scm/linux/kernel/git/cxl/cxl

Pull CXL updates from Dave Jiang:
 "Core:

   - A CXL maturity map has been added to the documentation to detail
     the current state of CXL enabling.

     It provides the status of the current state of various CXL features
     to inform current and future contributors of where things are and
     which areas need contribution.

   - A notifier handler has been added in order for a newly created CXL
     memory region to trigger the abstract distance metrics calculation.

     This should bring parity for CXL memory to the same level vs
     hotplugged DRAM for NUMA abstract distance calculation. The
     abstract distance reflects relative performance used for memory
     tiering handling.

   - An addition for XOR math has been added to address the CXL DPA to
     SPA translation.

     CXL address translation did not support address interleave math
     with XOR prior to this change.

  Fixes:

   - Fix to address race condition in the CXL memory hotplug notifier

   - Add missing MODULE_DESCRIPTION() for CXL modules

   - Fix incorrect vendor debug UUID define

  Misc:

   - A warning has been added to inform users of an unsupported
     configuration when mixing CXL VH and RCH/RCD hierarchies

   - The ENXIO error code has been replaced with EBUSY for inject poison
     limit reached via debugfs and cxl-test support

   - Moving the PCI config read in cxl_dvsec_rr_decode() to avoid
     unnecessary PCI config reads

   - A refactor to a common struct for DRAM and general media CXL
     events"

* tag 'cxl-for-6.11' of git://git.kernel.org/pub/scm/linux/kernel/git/cxl/cxl:
  cxl/core/pci: Move reading of control register to immediately before usage
  cxl: Remove defunct code calculating host bridge target positions
  cxl/region: Verify target positions using the ordered target list
  cxl: Restore XOR'd position bits during address translation
  cxl/core: Fold cxl_trace_hpa() into cxl_dpa_to_hpa()
  cxl/test: Replace ENXIO with EBUSY for inject poison limit reached
  cxl/memdev: Replace ENXIO with EBUSY for inject poison limit reached
  cxl/acpi: Warn on mixed CXL VH and RCH/RCD Hierarchy
  cxl/core: Fix incorrect vendor debug UUID define
  Documentation: CXL Maturity Map
  cxl/region: Simplify cxl_region_nid()
  cxl/region: Support to calculate memory tier abstract distance
  cxl/region: Fix a race condition in memory hotplug notifier
  cxl: add missing MODULE_DESCRIPTION() macros
  cxl/events: Use a common struct for DRAM and General Media events
2024-07-28 09:33:28 -07:00
Linus Torvalds
7b5d481889 Two small fixes to silent the compiler and static analyzers tools from
Ben Dooks and Jeff Johnson.
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Merge tag 'unicode-next-6.11' of git://git.kernel.org/pub/scm/linux/kernel/git/krisman/unicode

Pull unicode update from Gabriel Krisman Bertazi:
 "Two small fixes to silence the compiler and static analyzers tools
  from Ben Dooks and Jeff Johnson"

* tag 'unicode-next-6.11' of git://git.kernel.org/pub/scm/linux/kernel/git/krisman/unicode:
  unicode: add MODULE_DESCRIPTION() macros
  unicode: make utf8 test count static
2024-07-28 09:14:11 -07:00
Jose Ignacio Tornos Martinez
d01c14074b kbuild: rpm-pkg: ghost modules.weakdep file
In the same way as for other similar files, mark as ghost the new file
generated by depmod for configured weak dependencies for modules,
modules.weakdep, so that although it is not included in the package,
claim the ownership on it.

Signed-off-by: Jose Ignacio Tornos Martinez <jtornosm@redhat.com>
Signed-off-by: Masahiro Yamada <masahiroy@kernel.org>
2024-07-28 17:07:03 +09:00
Linus Torvalds
5437f30d34 six smb3 client fixes
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Merge tag '6.11-rc-smb-client-fixes-part2' of git://git.samba.org/sfrench/cifs-2.6

Pull more smb client updates from Steve French:

 - fix for potential null pointer use in init cifs

 - additional dynamic trace points to improve debugging of some common
   scenarios

 - two SMB1 fixes (one addressing reconnect with POSIX extensions, one a
   mount parsing error)

* tag '6.11-rc-smb-client-fixes-part2' of git://git.samba.org/sfrench/cifs-2.6:
  smb3: add dynamic trace point for session setup key expired failures
  smb3: add four dynamic tracepoints for copy_file_range and reflink
  smb3: add dynamic tracepoint for reflink errors
  cifs: mount with "unix" mount option for SMB1 incorrectly handled
  cifs: fix reconnect with SMB1 UNIX Extensions
  cifs: fix potential null pointer use in destroy_workqueue in init_cifs error path
2024-07-27 20:08:07 -07:00
Linus Torvalds
6342649c33 block-6.11-20240726
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Merge tag 'block-6.11-20240726' of git://git.kernel.dk/linux

Pull block fixes from Jens Axboe:

 - NVMe pull request via Keith:
     - Fix request without payloads cleanup  (Leon)
     - Use new protection information format (Francis)
     - Improved debug message for lost pci link (Bart)
     - Another apst quirk (Wang)
     - Use appropriate sysfs api for printing chars (Markus)

 - ublk async device deletion fix (Ming)

 - drbd kerneldoc fixups (Simon)

 - Fix deadlock between sd removal and release (Yang)

* tag 'block-6.11-20240726' of git://git.kernel.dk/linux:
  nvme-pci: add missing condition check for existence of mapped data
  ublk: fix UBLK_CMD_DEL_DEV_ASYNC handling
  block: fix deadlock between sd_remove & sd_release
  drbd: Add peer_device to Kernel doc
  nvme-core: choose PIF from QPIF if QPIFS supports and PIF is QTYPE
  nvme-pci: Fix the instructions for disabling power management
  nvme: remove redundant bdev local variable
  nvme-fabrics: Use seq_putc() in __nvmf_concat_opt_tokens()
  nvme/pci: Add APST quirk for Lenovo N60z laptop
2024-07-27 15:28:53 -07:00
Linus Torvalds
8c93074743 io_uring-6.11-20240726
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Merge tag 'io_uring-6.11-20240726' of git://git.kernel.dk/linux

Pull io_uring fixes from Jens Axboe:

 - Fix a syzbot issue for the msg ring cache added in this release. No
   ill effects from this one, but it did make KMSAN unhappy (me)

 - Sanitize the NAPI timeout handling, by unifying the value handling
   into all ktime_t rather than converting back and forth (Pavel)

 - Fail NAPI registration for IOPOLL rings, it's not supported (Pavel)

 - Fix a theoretical issue with ring polling and cancelations (Pavel)

 - Various little cleanups and fixes (Pavel)

* tag 'io_uring-6.11-20240726' of git://git.kernel.dk/linux:
  io_uring/napi: pass ktime to io_napi_adjust_timeout
  io_uring/napi: use ktime in busy polling
  io_uring/msg_ring: fix uninitialized use of target_req->flags
  io_uring: align iowq and task request error handling
  io_uring: kill REQ_F_CANCEL_SEQ
  io_uring: simplify io_uring_cmd return
  io_uring: fix io_match_task must_hold
  io_uring: don't allow netpolling with SETUP_IOPOLL
  io_uring: tighten task exit cancellations
2024-07-27 15:22:33 -07:00
Linus Torvalds
bc4eee85ca vfs-6.11-rc1.fixes.3
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Merge tag 'vfs-6.11-rc1.fixes.3' of git://git.kernel.org/pub/scm/linux/kernel/git/vfs/vfs

Pull vfs fixes from Christian Brauner:
 "This contains two fixes for this merge window:

  VFS:

   - I noticed that it is possible for a privileged user to mount most
     filesystems with a non-initial user namespace in sb->s_user_ns.

     When fsopen() is called in a non-init namespace the caller's
     namespace is recorded in fs_context->user_ns. If the returned file
     descriptor is then passed to a process privileged in init_user_ns,
     that process can call fsconfig(fd_fs, FSCONFIG_CMD_CREATE*),
     creating a new superblock with sb->s_user_ns set to the namespace
     of the process which called fsopen().

     This is problematic as only filesystems that raise FS_USERNS_MOUNT
     are known to be able to support a non-initial s_user_ns. Others may
     suffer security issues, on-disk corruption or outright crash the
     kernel. Prevent that by restricting such delegation to filesystems
     that allow FS_USERNS_MOUNT.

     Note, that this delegation requires a privileged process to
     actually create the superblock so either the privileged process is
     cooperaing or someone must have tricked a privileged process into
     operating on a fscontext file descriptor whose origin it doesn't
     know (a stupid idea).

     The bug dates back to about 5 years afaict.

  Misc:

   - Fix hostfs parsing when the mount request comes in via the legacy
     mount api.

     In the legacy mount api hostfs allows to specify the host directory
     mount without any key.

     Restore that behavior"

* tag 'vfs-6.11-rc1.fixes.3' of git://git.kernel.org/pub/scm/linux/kernel/git/vfs/vfs:
  hostfs: fix the host directory parse when mounting.
  fs: don't allow non-init s_user_ns for filesystems without FS_USERNS_MOUNT
2024-07-27 15:11:59 -07:00
Linus Torvalds
910bfc26d1 Rust changes for v6.11
The highlight is the establishment of a minimum version for the Rust
 toolchain, including 'rustc' (and bundled tools) and 'bindgen'.
 
 The initial minimum will be the pinned version we currently have, i.e.
 we are just widening the allowed versions. That covers 3 stable Rust
 releases: 1.78.0, 1.79.0, 1.80.0 (getting released tomorrow), plus beta,
 plus nightly.
 
 This should already be enough for kernel developers in distributions
 that provide recent Rust compiler versions routinely, such as Arch
 Linux, Debian Unstable (outside the freeze period), Fedora Linux,
 Gentoo Linux (especially the testing channel), Nix (unstable) and
 openSUSE Slowroll and Tumbleweed.
 
 In addition, the kernel is now being built-tested by Rust's pre-merge
 CI. That is, every change that is attempting to land into the Rust
 compiler is tested against the kernel, and it is merged only if it
 passes. Similarly, the bindgen tool has agreed to build the kernel in
 their CI too.
 
 Thus, with the pre-merge CI in place, both projects hope to avoid
 unintentional changes to Rust that break the kernel. This means that,
 in general, apart from intentional changes on their side (that we
 will need to workaround conditionally on our side), the upcoming Rust
 compiler versions should generally work.
 
 In addition, the Rust project has proposed getting the kernel into
 stable Rust (at least solving the main blockers) as one of its three
 flagship goals for 2024H2 [1].
 
 I would like to thank Niko, Sid, Emilio et al. for their help promoting
 the collaboration between Rust and the kernel.
 
 [1] https://rust-lang.github.io/rust-project-goals/2024h2/index.html#flagship-goals
 
 Toolchain and infrastructure:
 
  - Support several Rust toolchain versions.
 
  - Support several bindgen versions.
 
  - Remove 'cargo' requirement and simplify 'rusttest', thanks to 'alloc'
    having been dropped last cycle.
 
  - Provide proper error reporting for the 'rust-analyzer' target.
 
 'kernel' crate:
 
  - Add 'uaccess' module with a safe userspace pointers abstraction.
 
  - Add 'page' module with a 'struct page' abstraction.
 
  - Support more complex generics in workqueue's 'impl_has_work!' macro.
 
 'macros' crate:
 
  - Add 'firmware' field support to the 'module!' macro.
 
  - Improve 'module!' macro documentation.
 
 Documentation:
 
  - Provide instructions on what packages should be installed to build
    the kernel in some popular Linux distributions.
 
  - Introduce the new kernel.org LLVM+Rust toolchains.
 
  - Explain '#[no_std]'.
 
 And a few other small bits.
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Merge tag 'rust-6.11' of https://github.com/Rust-for-Linux/linux

Pull Rust updates from Miguel Ojeda:
 "The highlight is the establishment of a minimum version for the Rust
  toolchain, including 'rustc' (and bundled tools) and 'bindgen'.

  The initial minimum will be the pinned version we currently have, i.e.
  we are just widening the allowed versions. That covers three stable
  Rust releases: 1.78.0, 1.79.0, 1.80.0 (getting released tomorrow),
  plus beta, plus nightly.

  This should already be enough for kernel developers in distributions
  that provide recent Rust compiler versions routinely, such as Arch
  Linux, Debian Unstable (outside the freeze period), Fedora Linux,
  Gentoo Linux (especially the testing channel), Nix (unstable) and
  openSUSE Slowroll and Tumbleweed.

  In addition, the kernel is now being built-tested by Rust's pre-merge
  CI. That is, every change that is attempting to land into the Rust
  compiler is tested against the kernel, and it is merged only if it
  passes. Similarly, the bindgen tool has agreed to build the kernel in
  their CI too.

  Thus, with the pre-merge CI in place, both projects hope to avoid
  unintentional changes to Rust that break the kernel. This means that,
  in general, apart from intentional changes on their side (that we will
  need to workaround conditionally on our side), the upcoming Rust
  compiler versions should generally work.

  In addition, the Rust project has proposed getting the kernel into
  stable Rust (at least solving the main blockers) as one of its three
  flagship goals for 2024H2 [1].

  I would like to thank Niko, Sid, Emilio et al. for their help
  promoting the collaboration between Rust and the kernel.

  Toolchain and infrastructure:

   - Support several Rust toolchain versions.

   - Support several bindgen versions.

   - Remove 'cargo' requirement and simplify 'rusttest', thanks to
     'alloc' having been dropped last cycle.

   - Provide proper error reporting for the 'rust-analyzer' target.

  'kernel' crate:

   - Add 'uaccess' module with a safe userspace pointers abstraction.

   - Add 'page' module with a 'struct page' abstraction.

   - Support more complex generics in workqueue's 'impl_has_work!'
     macro.

  'macros' crate:

   - Add 'firmware' field support to the 'module!' macro.

   - Improve 'module!' macro documentation.

  Documentation:

   - Provide instructions on what packages should be installed to build
     the kernel in some popular Linux distributions.

   - Introduce the new kernel.org LLVM+Rust toolchains.

   - Explain '#[no_std]'.

  And a few other small bits"

Link: https://rust-lang.github.io/rust-project-goals/2024h2/index.html#flagship-goals [1]

* tag 'rust-6.11' of https://github.com/Rust-for-Linux/linux: (26 commits)
  docs: rust: quick-start: add section on Linux distributions
  rust: warn about `bindgen` versions 0.66.0 and 0.66.1
  rust: start supporting several `bindgen` versions
  rust: work around `bindgen` 0.69.0 issue
  rust: avoid assuming a particular `bindgen` build
  rust: start supporting several compiler versions
  rust: simplify Clippy warning flags set
  rust: relax most deny-level lints to warnings
  rust: allow `dead_code` for never constructed bindings
  rust: init: simplify from `map_err` to `inspect_err`
  rust: macros: indent list item in `paste!`'s docs
  rust: add abstraction for `struct page`
  rust: uaccess: add typed accessors for userspace pointers
  uaccess: always export _copy_[from|to]_user with CONFIG_RUST
  rust: uaccess: add userspace pointers
  kbuild: rust-analyzer: improve comment documentation
  kbuild: rust-analyzer: better error handling
  docs: rust: no_std is used
  rust: alloc: add __GFP_HIGHMEM flag
  rust: alloc: fix typo in docs for GFP_NOWAIT
  ...
2024-07-27 13:44:54 -07:00