<feed xmlns='http://www.w3.org/2005/Atom'>
<title>linux-stable.git/drivers/staging, branch v6.11</title>
<subtitle>Linux kernel stable tree</subtitle>
<link rel='alternate' type='text/html' href='https://git.tavy.me/linux-stable.git/'/>
<entry>
<title>minmax: reduce min/max macro expansion in atomisp driver</title>
<updated>2024-09-11T18:07:47+00:00</updated>
<author>
<name>Lorenzo Stoakes</name>
<email>lorenzo.stoakes@oracle.com</email>
</author>
<published>2024-09-11T17:51:11+00:00</published>
<link rel='alternate' type='text/html' href='https://git.tavy.me/linux-stable.git/commit/?id=7c6a3a65ace70f12b27b1a27c9a69cb791dc6e91'/>
<id>7c6a3a65ace70f12b27b1a27c9a69cb791dc6e91</id>
<content type='text'>
Avoid unnecessary nested min()/max() which results in egregious macro
expansion.

Use clamp_t() as this introduces the least possible expansion, and turn
the {s,u}DIGIT_FITTING() macros into inline functions to avoid the
nested expansion.

This resolves an issue with slackware 15.0 32-bit compilation as
reported by Richard Narron.

Presumably the min/max fixups would be difficult to backport, this patch
should be easier and fix's Richard's problem in 5.15.

Reported-by: Richard Narron &lt;richard@aaazen.com&gt;
Reviewed-by: Hans de Goede &lt;hdegoede@redhat.com&gt;
Closes: https://lore.kernel.org/all/4a5321bd-b1f-1832-f0c-cea8694dc5aa@aaazen.com/
Fixes: 867046cc7027 ("minmax: relax check to allow comparison between unsigned arguments and signed constants")
Cc: stable@vger.kernel.org
Signed-off-by: Lorenzo Stoakes &lt;lorenzo.stoakes@oracle.com&gt;
Signed-off-by: Linus Torvalds &lt;torvalds@linux-foundation.org&gt;
</content>
<content type='xhtml'>
<div xmlns='http://www.w3.org/1999/xhtml'>
<pre>
Avoid unnecessary nested min()/max() which results in egregious macro
expansion.

Use clamp_t() as this introduces the least possible expansion, and turn
the {s,u}DIGIT_FITTING() macros into inline functions to avoid the
nested expansion.

This resolves an issue with slackware 15.0 32-bit compilation as
reported by Richard Narron.

Presumably the min/max fixups would be difficult to backport, this patch
should be easier and fix's Richard's problem in 5.15.

Reported-by: Richard Narron &lt;richard@aaazen.com&gt;
Reviewed-by: Hans de Goede &lt;hdegoede@redhat.com&gt;
Closes: https://lore.kernel.org/all/4a5321bd-b1f-1832-f0c-cea8694dc5aa@aaazen.com/
Fixes: 867046cc7027 ("minmax: relax check to allow comparison between unsigned arguments and signed constants")
Cc: stable@vger.kernel.org
Signed-off-by: Lorenzo Stoakes &lt;lorenzo.stoakes@oracle.com&gt;
Signed-off-by: Linus Torvalds &lt;torvalds@linux-foundation.org&gt;
</pre>
</div>
</content>
</entry>
<entry>
<title>Merge tag 'char-misc-6.11-rc7' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc</title>
<updated>2024-09-08T17:13:39+00:00</updated>
<author>
<name>Linus Torvalds</name>
<email>torvalds@linux-foundation.org</email>
</author>
<published>2024-09-08T17:13:39+00:00</published>
<link rel='alternate' type='text/html' href='https://git.tavy.me/linux-stable.git/commit/?id=5dadc1be8fc5355034a8515e021ed557acf5fd17'/>
<id>5dadc1be8fc5355034a8515e021ed557acf5fd17</id>
<content type='text'>
Pull char/misc driver fixes from Greg KH:
 "Here are some small char/misc/other driver fixes for 6.11-rc7. It's
  nothing huge, just a bunch of small fixes of reported problems,
  including:

   - lots of tiny iio driver fixes

   - nvmem driver fixex

   - binder UAF bugfix

   - uio driver crash fix

   - other small fixes

  All of these have been in linux-next this week with no reported
  problems"

* tag 'char-misc-6.11-rc7' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc: (21 commits)
  VMCI: Fix use-after-free when removing resource in vmci_resource_remove()
  Drivers: hv: vmbus: Fix rescind handling in uio_hv_generic
  uio_hv_generic: Fix kernel NULL pointer dereference in hv_uio_rescind
  misc: keba: Fix sysfs group creation
  dt-bindings: nvmem: Use soc-nvmem node name instead of nvmem
  nvmem: Fix return type of devm_nvmem_device_get() in kerneldoc
  nvmem: u-boot-env: error if NVMEM device is too small
  misc: fastrpc: Fix double free of 'buf' in error path
  binder: fix UAF caused by offsets overwrite
  iio: imu: inv_mpu6050: fix interrupt status read for old buggy chips
  iio: adc: ad7173: fix GPIO device info
  iio: adc: ad7124: fix DT configuration parsing
  iio: adc: ad_sigma_delta: fix irq_flags on irq request
  iio: adc: ads1119: Fix IRQ flags
  iio: fix scale application in iio_convert_raw_to_processed_unlocked
  iio: adc: ad7124: fix config comparison
  iio: adc: ad7124: fix chip ID mismatch
  iio: adc: ad7173: Fix incorrect compatible string
  iio: buffer-dmaengine: fix releasing dma channel on error
  iio: adc: ad7606: remove frstdata check for serial mode
  ...
</content>
<content type='xhtml'>
<div xmlns='http://www.w3.org/1999/xhtml'>
<pre>
Pull char/misc driver fixes from Greg KH:
 "Here are some small char/misc/other driver fixes for 6.11-rc7. It's
  nothing huge, just a bunch of small fixes of reported problems,
  including:

   - lots of tiny iio driver fixes

   - nvmem driver fixex

   - binder UAF bugfix

   - uio driver crash fix

   - other small fixes

  All of these have been in linux-next this week with no reported
  problems"

* tag 'char-misc-6.11-rc7' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc: (21 commits)
  VMCI: Fix use-after-free when removing resource in vmci_resource_remove()
  Drivers: hv: vmbus: Fix rescind handling in uio_hv_generic
  uio_hv_generic: Fix kernel NULL pointer dereference in hv_uio_rescind
  misc: keba: Fix sysfs group creation
  dt-bindings: nvmem: Use soc-nvmem node name instead of nvmem
  nvmem: Fix return type of devm_nvmem_device_get() in kerneldoc
  nvmem: u-boot-env: error if NVMEM device is too small
  misc: fastrpc: Fix double free of 'buf' in error path
  binder: fix UAF caused by offsets overwrite
  iio: imu: inv_mpu6050: fix interrupt status read for old buggy chips
  iio: adc: ad7173: fix GPIO device info
  iio: adc: ad7124: fix DT configuration parsing
  iio: adc: ad_sigma_delta: fix irq_flags on irq request
  iio: adc: ads1119: Fix IRQ flags
  iio: fix scale application in iio_convert_raw_to_processed_unlocked
  iio: adc: ad7124: fix config comparison
  iio: adc: ad7124: fix chip ID mismatch
  iio: adc: ad7173: Fix incorrect compatible string
  iio: buffer-dmaengine: fix releasing dma channel on error
  iio: adc: ad7606: remove frstdata check for serial mode
  ...
</pre>
</div>
</content>
</entry>
<entry>
<title>Merge tag 'iio-fixes-for-6.11a' of ssh://gitolite.kernel.org/pub/scm/linux/kernel/git/jic23/iio into char-misc-linus</title>
<updated>2024-09-03T10:17:10+00:00</updated>
<author>
<name>Greg Kroah-Hartman</name>
<email>gregkh@linuxfoundation.org</email>
</author>
<published>2024-09-03T10:17:10+00:00</published>
<link rel='alternate' type='text/html' href='https://git.tavy.me/linux-stable.git/commit/?id=8cbec539593a7dc1cbcc2d839333353a47342c06'/>
<id>8cbec539593a7dc1cbcc2d839333353a47342c06</id>
<content type='text'>
Jonathan writes:

IIO: 1st set of fixes for 6.11

The usual mixed bag of new issues and ancient ones.
The fact so many are ADI is probably due to an uptick in upstreaming
effort from Analog + Baylibre  meaning existing code is getting more eyes
on it. Hence it's a good sign not a reflection of inherent high bug
incidence!

Core and helper related
-----------------------

in kernel interfaces
- Fix missing application of scale to the integer part of
  IIO_INT_PLUS_XXX value pairs when using the
  iio_convert_raw_to_processed*() helper.
buffer-dmaengine
- Make sure to release DMA channel in error path.

Driver related
--------------

adi,ad-sigma-delta library
- Check irq-flags for the correct irq if multiple are provided.
adi,ad7124
- Wait after reset before reading the chip ID register.
- Compare only the relevant field when looking for an existing
  config to reuse for a new channel.
- Fix an off by one in which channel config is being filled from
  firmware.
adi,ad7173
- Fix missing vendor prefix in compatible strings.
- Fix wrong info for GPIO related bit positions for ad4114,ad4115 and ad4116.
adi,ad7606
- Drop incorrect check on frstdata when in serial mode, it only applies to
  parallel mode.
adi,ad9834
- Check userspace input for frequency parameter to avoid div by zero.
invensense,mpu6050
- Avoid reading interrupt status on some older chips as it seems there
  is a hardware problem that surfaces as a result of adding wake on
  motion support to the driver (which these chips don't support).
ti,ads1119
- Fix incorrect IRQ flag (new driver so no firmware compatibility regression
  issues with fixing this now).

* tag 'iio-fixes-for-6.11a' of ssh://gitolite.kernel.org/pub/scm/linux/kernel/git/jic23/iio:
  iio: imu: inv_mpu6050: fix interrupt status read for old buggy chips
  iio: adc: ad7173: fix GPIO device info
  iio: adc: ad7124: fix DT configuration parsing
  iio: adc: ad_sigma_delta: fix irq_flags on irq request
  iio: adc: ads1119: Fix IRQ flags
  iio: fix scale application in iio_convert_raw_to_processed_unlocked
  iio: adc: ad7124: fix config comparison
  iio: adc: ad7124: fix chip ID mismatch
  iio: adc: ad7173: Fix incorrect compatible string
  iio: buffer-dmaengine: fix releasing dma channel on error
  iio: adc: ad7606: remove frstdata check for serial mode
  staging: iio: frequency: ad9834: Validate frequency parameter value
</content>
<content type='xhtml'>
<div xmlns='http://www.w3.org/1999/xhtml'>
<pre>
Jonathan writes:

IIO: 1st set of fixes for 6.11

The usual mixed bag of new issues and ancient ones.
The fact so many are ADI is probably due to an uptick in upstreaming
effort from Analog + Baylibre  meaning existing code is getting more eyes
on it. Hence it's a good sign not a reflection of inherent high bug
incidence!

Core and helper related
-----------------------

in kernel interfaces
- Fix missing application of scale to the integer part of
  IIO_INT_PLUS_XXX value pairs when using the
  iio_convert_raw_to_processed*() helper.
buffer-dmaengine
- Make sure to release DMA channel in error path.

Driver related
--------------

adi,ad-sigma-delta library
- Check irq-flags for the correct irq if multiple are provided.
adi,ad7124
- Wait after reset before reading the chip ID register.
- Compare only the relevant field when looking for an existing
  config to reuse for a new channel.
- Fix an off by one in which channel config is being filled from
  firmware.
adi,ad7173
- Fix missing vendor prefix in compatible strings.
- Fix wrong info for GPIO related bit positions for ad4114,ad4115 and ad4116.
adi,ad7606
- Drop incorrect check on frstdata when in serial mode, it only applies to
  parallel mode.
adi,ad9834
- Check userspace input for frequency parameter to avoid div by zero.
invensense,mpu6050
- Avoid reading interrupt status on some older chips as it seems there
  is a hardware problem that surfaces as a result of adding wake on
  motion support to the driver (which these chips don't support).
ti,ads1119
- Fix incorrect IRQ flag (new driver so no firmware compatibility regression
  issues with fixing this now).

* tag 'iio-fixes-for-6.11a' of ssh://gitolite.kernel.org/pub/scm/linux/kernel/git/jic23/iio:
  iio: imu: inv_mpu6050: fix interrupt status read for old buggy chips
  iio: adc: ad7173: fix GPIO device info
  iio: adc: ad7124: fix DT configuration parsing
  iio: adc: ad_sigma_delta: fix irq_flags on irq request
  iio: adc: ads1119: Fix IRQ flags
  iio: fix scale application in iio_convert_raw_to_processed_unlocked
  iio: adc: ad7124: fix config comparison
  iio: adc: ad7124: fix chip ID mismatch
  iio: adc: ad7173: Fix incorrect compatible string
  iio: buffer-dmaengine: fix releasing dma channel on error
  iio: adc: ad7606: remove frstdata check for serial mode
  staging: iio: frequency: ad9834: Validate frequency parameter value
</pre>
</div>
</content>
</entry>
<entry>
<title>Merge tag 'kbuild-fixes-v6.11-2' of git://git.kernel.org/pub/scm/linux/kernel/git/masahiroy/linux-kbuild</title>
<updated>2024-08-22T23:43:15+00:00</updated>
<author>
<name>Linus Torvalds</name>
<email>torvalds@linux-foundation.org</email>
</author>
<published>2024-08-22T23:43:15+00:00</published>
<link rel='alternate' type='text/html' href='https://git.tavy.me/linux-stable.git/commit/?id=3f44ae972ae5cf6a75eb40314a6a81bd694d0f53'/>
<id>3f44ae972ae5cf6a75eb40314a6a81bd694d0f53</id>
<content type='text'>
Pull Kbuild fixes from Masahiro Yamada:

 - Eliminate the fdtoverlay command duplication in scripts/Makefile.lib

 - Fix 'make compile_commands.json' for external modules

 - Ensure scripts/kconfig/merge_config.sh handles missing newlines

 - Fix some build errors on macOS

* tag 'kbuild-fixes-v6.11-2' of git://git.kernel.org/pub/scm/linux/kernel/git/masahiroy/linux-kbuild:
  kbuild: fix typos "prequisites" to "prerequisites"
  Documentation/llvm: turn make command for ccache into code block
  kbuild: avoid scripts/kallsyms parsing /dev/null
  treewide: remove unnecessary &lt;linux/version.h&gt; inclusion
  scripts: kconfig: merge_config: config files: add a trailing newline
  Makefile: add $(srctree) to dependency of compile_commands.json target
  kbuild: clean up code duplication in cmd_fdtoverlay
</content>
<content type='xhtml'>
<div xmlns='http://www.w3.org/1999/xhtml'>
<pre>
Pull Kbuild fixes from Masahiro Yamada:

 - Eliminate the fdtoverlay command duplication in scripts/Makefile.lib

 - Fix 'make compile_commands.json' for external modules

 - Ensure scripts/kconfig/merge_config.sh handles missing newlines

 - Fix some build errors on macOS

* tag 'kbuild-fixes-v6.11-2' of git://git.kernel.org/pub/scm/linux/kernel/git/masahiroy/linux-kbuild:
  kbuild: fix typos "prequisites" to "prerequisites"
  Documentation/llvm: turn make command for ccache into code block
  kbuild: avoid scripts/kallsyms parsing /dev/null
  treewide: remove unnecessary &lt;linux/version.h&gt; inclusion
  scripts: kconfig: merge_config: config files: add a trailing newline
  Makefile: add $(srctree) to dependency of compile_commands.json target
  kbuild: clean up code duplication in cmd_fdtoverlay
</pre>
</div>
</content>
</entry>
<entry>
<title>Merge tag 'media/v6.11-3' of git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-media</title>
<updated>2024-08-15T17:23:19+00:00</updated>
<author>
<name>Linus Torvalds</name>
<email>torvalds@linux-foundation.org</email>
</author>
<published>2024-08-15T17:23:19+00:00</published>
<link rel='alternate' type='text/html' href='https://git.tavy.me/linux-stable.git/commit/?id=20573d8e1c2801d6f0cc08d26003248fd118962b'/>
<id>20573d8e1c2801d6f0cc08d26003248fd118962b</id>
<content type='text'>
Pull media fixes from Mauro Carvalho Chehab:
 "Two regression fixes:

   - fix atomisp support for ISP2400

   - fix dvb-usb regression for TeVii s480 dual DVB-S2 S660 board"

* tag 'media/v6.11-3' of git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-media:
  media: atomisp: Fix streaming no longer working on BYT / ISP2400 devices
  media: Revert "media: dvb-usb: Fix unexpected infinite loop in dvb_usb_read_remote_control()"
</content>
<content type='xhtml'>
<div xmlns='http://www.w3.org/1999/xhtml'>
<pre>
Pull media fixes from Mauro Carvalho Chehab:
 "Two regression fixes:

   - fix atomisp support for ISP2400

   - fix dvb-usb regression for TeVii s480 dual DVB-S2 S660 board"

* tag 'media/v6.11-3' of git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-media:
  media: atomisp: Fix streaming no longer working on BYT / ISP2400 devices
  media: Revert "media: dvb-usb: Fix unexpected infinite loop in dvb_usb_read_remote_control()"
</pre>
</div>
</content>
</entry>
<entry>
<title>media: atomisp: Fix streaming no longer working on BYT / ISP2400 devices</title>
<updated>2024-08-14T06:06:07+00:00</updated>
<author>
<name>Hans de Goede</name>
<email>hdegoede@redhat.com</email>
</author>
<published>2024-07-21T15:38:40+00:00</published>
<link rel='alternate' type='text/html' href='https://git.tavy.me/linux-stable.git/commit/?id=63de936b513f7a9ce559194d3269ac291f4f4662'/>
<id>63de936b513f7a9ce559194d3269ac291f4f4662</id>
<content type='text'>
Commit a0821ca14bb8 ("media: atomisp: Remove test pattern generator (TPG)
support") broke BYT support because it removed a seemingly unused field
from struct sh_css_sp_config and a seemingly unused value from enum
ia_css_input_mode.

But these are part of the ABI between the kernel and firmware on ISP2400
and this part of the TPG support removal changes broke ISP2400 support.

ISP2401 support was not affected because on ISP2401 only a part of
struct sh_css_sp_config is used.

Restore the removed field and enum value to fix this.

Fixes: a0821ca14bb8 ("media: atomisp: Remove test pattern generator (TPG) support")
Cc: stable@vger.kernel.org
Signed-off-by: Hans de Goede &lt;hdegoede@redhat.com&gt;
Signed-off-by: Hans Verkuil &lt;hverkuil-cisco@xs4all.nl&gt;
</content>
<content type='xhtml'>
<div xmlns='http://www.w3.org/1999/xhtml'>
<pre>
Commit a0821ca14bb8 ("media: atomisp: Remove test pattern generator (TPG)
support") broke BYT support because it removed a seemingly unused field
from struct sh_css_sp_config and a seemingly unused value from enum
ia_css_input_mode.

But these are part of the ABI between the kernel and firmware on ISP2400
and this part of the TPG support removal changes broke ISP2400 support.

ISP2401 support was not affected because on ISP2401 only a part of
struct sh_css_sp_config is used.

Restore the removed field and enum value to fix this.

Fixes: a0821ca14bb8 ("media: atomisp: Remove test pattern generator (TPG) support")
Cc: stable@vger.kernel.org
Signed-off-by: Hans de Goede &lt;hdegoede@redhat.com&gt;
Signed-off-by: Hans Verkuil &lt;hverkuil-cisco@xs4all.nl&gt;
</pre>
</div>
</content>
</entry>
<entry>
<title>treewide: remove unnecessary &lt;linux/version.h&gt; inclusion</title>
<updated>2024-08-12T09:36:44+00:00</updated>
<author>
<name>Masahiro Yamada</name>
<email>masahiroy@kernel.org</email>
</author>
<published>2024-08-07T17:47:28+00:00</published>
<link rel='alternate' type='text/html' href='https://git.tavy.me/linux-stable.git/commit/?id=e332a5aba83500e8d422c90d2a84d8a5f888673e'/>
<id>e332a5aba83500e8d422c90d2a84d8a5f888673e</id>
<content type='text'>
These files do not use any macros defined in &lt;linux/version.h&gt;.

Signed-off-by: Masahiro Yamada &lt;masahiroy@kernel.org&gt;
Reviewed-by: Nicolas Schier &lt;nicolas@fjasle.eu&gt;
</content>
<content type='xhtml'>
<div xmlns='http://www.w3.org/1999/xhtml'>
<pre>
These files do not use any macros defined in &lt;linux/version.h&gt;.

Signed-off-by: Masahiro Yamada &lt;masahiroy@kernel.org&gt;
Reviewed-by: Nicolas Schier &lt;nicolas@fjasle.eu&gt;
</pre>
</div>
</content>
</entry>
<entry>
<title>staging: iio: frequency: ad9834: Validate frequency parameter value</title>
<updated>2024-07-29T19:31:23+00:00</updated>
<author>
<name>Aleksandr Mishin</name>
<email>amishin@t-argos.ru</email>
</author>
<published>2024-07-03T15:45:06+00:00</published>
<link rel='alternate' type='text/html' href='https://git.tavy.me/linux-stable.git/commit/?id=b48aa991758999d4e8f9296c5bbe388f293ef465'/>
<id>b48aa991758999d4e8f9296c5bbe388f293ef465</id>
<content type='text'>
In ad9834_write_frequency() clk_get_rate() can return 0. In such case
ad9834_calc_freqreg() call will lead to division by zero. Checking
'if (fout &gt; (clk_freq / 2))' doesn't protect in case of 'fout' is 0.
ad9834_write_frequency() is called from ad9834_write(), where fout is
taken from text buffer, which can contain any value.

Modify parameters checking.

Found by Linux Verification Center (linuxtesting.org) with SVACE.

Fixes: 12b9d5bf76bf ("Staging: IIO: DDS: AD9833 / AD9834 driver")
Suggested-by: Dan Carpenter &lt;dan.carpenter@linaro.org&gt;
Signed-off-by: Aleksandr Mishin &lt;amishin@t-argos.ru&gt;
Reviewed-by: Dan Carpenter &lt;dan.carpenter@linaro.org&gt;
Link: https://patch.msgid.link/20240703154506.25584-1-amishin@t-argos.ru
Cc: &lt;Stable@vger.kernel.org&gt;
Signed-off-by: Jonathan Cameron &lt;Jonathan.Cameron@huawei.com&gt;
</content>
<content type='xhtml'>
<div xmlns='http://www.w3.org/1999/xhtml'>
<pre>
In ad9834_write_frequency() clk_get_rate() can return 0. In such case
ad9834_calc_freqreg() call will lead to division by zero. Checking
'if (fout &gt; (clk_freq / 2))' doesn't protect in case of 'fout' is 0.
ad9834_write_frequency() is called from ad9834_write(), where fout is
taken from text buffer, which can contain any value.

Modify parameters checking.

Found by Linux Verification Center (linuxtesting.org) with SVACE.

Fixes: 12b9d5bf76bf ("Staging: IIO: DDS: AD9833 / AD9834 driver")
Suggested-by: Dan Carpenter &lt;dan.carpenter@linaro.org&gt;
Signed-off-by: Aleksandr Mishin &lt;amishin@t-argos.ru&gt;
Reviewed-by: Dan Carpenter &lt;dan.carpenter@linaro.org&gt;
Link: https://patch.msgid.link/20240703154506.25584-1-amishin@t-argos.ru
Cc: &lt;Stable@vger.kernel.org&gt;
Signed-off-by: Jonathan Cameron &lt;Jonathan.Cameron@huawei.com&gt;
</pre>
</div>
</content>
</entry>
<entry>
<title>minmax: make generic MIN() and MAX() macros available everywhere</title>
<updated>2024-07-28T22:49:18+00:00</updated>
<author>
<name>Linus Torvalds</name>
<email>torvalds@linux-foundation.org</email>
</author>
<published>2024-07-28T22:49:18+00:00</published>
<link rel='alternate' type='text/html' href='https://git.tavy.me/linux-stable.git/commit/?id=1a251f52cfdc417c84411a056bc142cbd77baef4'/>
<id>1a251f52cfdc417c84411a056bc142cbd77baef4</id>
<content type='text'>
This just standardizes the use of MIN() and MAX() macros, with the very
traditional semantics.  The goal is to use these for C constant
expressions and for top-level / static initializers, and so be able to
simplify the min()/max() macros.

These macro names were used by various kernel code - they are very
traditional, after all - and all such users have been fixed up, with a
few different approaches:

 - trivial duplicated macro definitions have been removed

   Note that 'trivial' here means that it's obviously kernel code that
   already included all the major kernel headers, and thus gets the new
   generic MIN/MAX macros automatically.

 - non-trivial duplicated macro definitions are guarded with #ifndef

   This is the "yes, they define their own versions, but no, the include
   situation is not entirely obvious, and maybe they don't get the
   generic version automatically" case.

 - strange use case #1

   A couple of drivers decided that the way they want to describe their
   versioning is with

	#define MAJ 1
	#define MIN 2
	#define DRV_VERSION __stringify(MAJ) "." __stringify(MIN)

   which adds zero value and I just did my Alexander the Great
   impersonation, and rewrote that pointless Gordian knot as

	#define DRV_VERSION "1.2"

   instead.

 - strange use case #2

   A couple of drivers thought that it's a good idea to have a random
   'MIN' or 'MAX' define for a value or index into a table, rather than
   the traditional macro that takes arguments.

   These values were re-written as C enum's instead. The new
   function-line macros only expand when followed by an open
   parenthesis, and thus don't clash with enum use.

Happily, there weren't really all that many of these cases, and a lot of
users already had the pattern of using '#ifndef' guarding (or in one
case just using '#undef MIN') before defining their own private version
that does the same thing. I left such cases alone.

Cc: David Laight &lt;David.Laight@aculab.com&gt;
Cc: Lorenzo Stoakes &lt;lorenzo.stoakes@oracle.com&gt;
Signed-off-by: Linus Torvalds &lt;torvalds@linux-foundation.org&gt;
</content>
<content type='xhtml'>
<div xmlns='http://www.w3.org/1999/xhtml'>
<pre>
This just standardizes the use of MIN() and MAX() macros, with the very
traditional semantics.  The goal is to use these for C constant
expressions and for top-level / static initializers, and so be able to
simplify the min()/max() macros.

These macro names were used by various kernel code - they are very
traditional, after all - and all such users have been fixed up, with a
few different approaches:

 - trivial duplicated macro definitions have been removed

   Note that 'trivial' here means that it's obviously kernel code that
   already included all the major kernel headers, and thus gets the new
   generic MIN/MAX macros automatically.

 - non-trivial duplicated macro definitions are guarded with #ifndef

   This is the "yes, they define their own versions, but no, the include
   situation is not entirely obvious, and maybe they don't get the
   generic version automatically" case.

 - strange use case #1

   A couple of drivers decided that the way they want to describe their
   versioning is with

	#define MAJ 1
	#define MIN 2
	#define DRV_VERSION __stringify(MAJ) "." __stringify(MIN)

   which adds zero value and I just did my Alexander the Great
   impersonation, and rewrote that pointless Gordian knot as

	#define DRV_VERSION "1.2"

   instead.

 - strange use case #2

   A couple of drivers thought that it's a good idea to have a random
   'MIN' or 'MAX' define for a value or index into a table, rather than
   the traditional macro that takes arguments.

   These values were re-written as C enum's instead. The new
   function-line macros only expand when followed by an open
   parenthesis, and thus don't clash with enum use.

Happily, there weren't really all that many of these cases, and a lot of
users already had the pattern of using '#ifndef' guarding (or in one
case just using '#undef MIN') before defining their own private version
that does the same thing. I left such cases alone.

Cc: David Laight &lt;David.Laight@aculab.com&gt;
Cc: Lorenzo Stoakes &lt;lorenzo.stoakes@oracle.com&gt;
Signed-off-by: Linus Torvalds &lt;torvalds@linux-foundation.org&gt;
</pre>
</div>
</content>
</entry>
<entry>
<title>Merge tag 'driver-core-6.11-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core</title>
<updated>2024-07-25T17:42:22+00:00</updated>
<author>
<name>Linus Torvalds</name>
<email>torvalds@linux-foundation.org</email>
</author>
<published>2024-07-25T17:42:22+00:00</published>
<link rel='alternate' type='text/html' href='https://git.tavy.me/linux-stable.git/commit/?id=c2a96b7f187fb6a455836d4a6e113947ff11de97'/>
<id>c2a96b7f187fb6a455836d4a6e113947ff11de97</id>
<content type='text'>
Pull driver core updates from Greg KH:
 "Here is the big set of driver core changes for 6.11-rc1.

  Lots of stuff in here, with not a huge diffstat, but apis are evolving
  which required lots of files to be touched. Highlights of the changes
  in here are:

   - platform remove callback api final fixups (Uwe took many releases
     to get here, finally!)

   - Rust bindings for basic firmware apis and initial driver-core
     interactions.

     It's not all that useful for a "write a whole driver in rust" type
     of thing, but the firmware bindings do help out the phy rust
     drivers, and the driver core bindings give a solid base on which
     others can start their work.

     There is still a long way to go here before we have a multitude of
     rust drivers being added, but it's a great first step.

   - driver core const api changes.

     This reached across all bus types, and there are some fix-ups for
     some not-common bus types that linux-next and 0-day testing shook
     out.

     This work is being done to help make the rust bindings more safe,
     as well as the C code, moving toward the end-goal of allowing us to
     put driver structures into read-only memory. We aren't there yet,
     but are getting closer.

   - minor devres cleanups and fixes found by code inspection

   - arch_topology minor changes

   - other minor driver core cleanups

  All of these have been in linux-next for a very long time with no
  reported problems"

* tag 'driver-core-6.11-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core: (55 commits)
  ARM: sa1100: make match function take a const pointer
  sysfs/cpu: Make crash_hotplug attribute world-readable
  dio: Have dio_bus_match() callback take a const *
  zorro: make match function take a const pointer
  driver core: module: make module_[add|remove]_driver take a const *
  driver core: make driver_find_device() take a const *
  driver core: make driver_[create|remove]_file take a const *
  firmware_loader: fix soundness issue in `request_internal`
  firmware_loader: annotate doctests as `no_run`
  devres: Correct code style for functions that return a pointer type
  devres: Initialize an uninitialized struct member
  devres: Fix memory leakage caused by driver API devm_free_percpu()
  devres: Fix devm_krealloc() wasting memory
  driver core: platform: Switch to use kmemdup_array()
  driver core: have match() callback in struct bus_type take a const *
  MAINTAINERS: add Rust device abstractions to DRIVER CORE
  device: rust: improve safety comments
  MAINTAINERS: add Danilo as FIRMWARE LOADER maintainer
  MAINTAINERS: add Rust FW abstractions to FIRMWARE LOADER
  firmware: rust: improve safety comments
  ...
</content>
<content type='xhtml'>
<div xmlns='http://www.w3.org/1999/xhtml'>
<pre>
Pull driver core updates from Greg KH:
 "Here is the big set of driver core changes for 6.11-rc1.

  Lots of stuff in here, with not a huge diffstat, but apis are evolving
  which required lots of files to be touched. Highlights of the changes
  in here are:

   - platform remove callback api final fixups (Uwe took many releases
     to get here, finally!)

   - Rust bindings for basic firmware apis and initial driver-core
     interactions.

     It's not all that useful for a "write a whole driver in rust" type
     of thing, but the firmware bindings do help out the phy rust
     drivers, and the driver core bindings give a solid base on which
     others can start their work.

     There is still a long way to go here before we have a multitude of
     rust drivers being added, but it's a great first step.

   - driver core const api changes.

     This reached across all bus types, and there are some fix-ups for
     some not-common bus types that linux-next and 0-day testing shook
     out.

     This work is being done to help make the rust bindings more safe,
     as well as the C code, moving toward the end-goal of allowing us to
     put driver structures into read-only memory. We aren't there yet,
     but are getting closer.

   - minor devres cleanups and fixes found by code inspection

   - arch_topology minor changes

   - other minor driver core cleanups

  All of these have been in linux-next for a very long time with no
  reported problems"

* tag 'driver-core-6.11-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core: (55 commits)
  ARM: sa1100: make match function take a const pointer
  sysfs/cpu: Make crash_hotplug attribute world-readable
  dio: Have dio_bus_match() callback take a const *
  zorro: make match function take a const pointer
  driver core: module: make module_[add|remove]_driver take a const *
  driver core: make driver_find_device() take a const *
  driver core: make driver_[create|remove]_file take a const *
  firmware_loader: fix soundness issue in `request_internal`
  firmware_loader: annotate doctests as `no_run`
  devres: Correct code style for functions that return a pointer type
  devres: Initialize an uninitialized struct member
  devres: Fix memory leakage caused by driver API devm_free_percpu()
  devres: Fix devm_krealloc() wasting memory
  driver core: platform: Switch to use kmemdup_array()
  driver core: have match() callback in struct bus_type take a const *
  MAINTAINERS: add Rust device abstractions to DRIVER CORE
  device: rust: improve safety comments
  MAINTAINERS: add Danilo as FIRMWARE LOADER maintainer
  MAINTAINERS: add Rust FW abstractions to FIRMWARE LOADER
  firmware: rust: improve safety comments
  ...
</pre>
</div>
</content>
</entry>
</feed>
