<feed xmlns='http://www.w3.org/2005/Atom'>
<title>linux-toradex.git/drivers/dma/pch_dma.c, branch v7.0-rc2</title>
<subtitle>Linux kernel for Apalis and Colibri modules</subtitle>
<link rel='alternate' type='text/html' href='https://git.toradex.cn/cgit/linux-toradex.git/'/>
<entry>
<title>Convert 'alloc_obj' family to use the new default GFP_KERNEL argument</title>
<updated>2026-02-22T01:09:51+00:00</updated>
<author>
<name>Linus Torvalds</name>
<email>torvalds@linux-foundation.org</email>
</author>
<published>2026-02-22T00:37:42+00:00</published>
<link rel='alternate' type='text/html' href='https://git.toradex.cn/cgit/linux-toradex.git/commit/?id=bf4afc53b77aeaa48b5409da5c8da6bb4eff7f43'/>
<id>bf4afc53b77aeaa48b5409da5c8da6bb4eff7f43</id>
<content type='text'>
This was done entirely with mindless brute force, using

    git grep -l '\&lt;k[vmz]*alloc_objs*(.*, GFP_KERNEL)' |
        xargs sed -i 's/\(alloc_objs*(.*\), GFP_KERNEL)/\1)/'

to convert the new alloc_obj() users that had a simple GFP_KERNEL
argument to just drop that argument.

Note that due to the extreme simplicity of the scripting, any slightly
more complex cases spread over multiple lines would not be triggered:
they definitely exist, but this covers the vast bulk of the cases, and
the resulting diff is also then easier to check automatically.

For the same reason the 'flex' versions will be done as a separate
conversion.

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 was done entirely with mindless brute force, using

    git grep -l '\&lt;k[vmz]*alloc_objs*(.*, GFP_KERNEL)' |
        xargs sed -i 's/\(alloc_objs*(.*\), GFP_KERNEL)/\1)/'

to convert the new alloc_obj() users that had a simple GFP_KERNEL
argument to just drop that argument.

Note that due to the extreme simplicity of the scripting, any slightly
more complex cases spread over multiple lines would not be triggered:
they definitely exist, but this covers the vast bulk of the cases, and
the resulting diff is also then easier to check automatically.

For the same reason the 'flex' versions will be done as a separate
conversion.

Signed-off-by: Linus Torvalds &lt;torvalds@linux-foundation.org&gt;
</pre>
</div>
</content>
</entry>
<entry>
<title>treewide: Replace kmalloc with kmalloc_obj for non-scalar types</title>
<updated>2026-02-21T09:02:28+00:00</updated>
<author>
<name>Kees Cook</name>
<email>kees@kernel.org</email>
</author>
<published>2026-02-21T07:49:23+00:00</published>
<link rel='alternate' type='text/html' href='https://git.toradex.cn/cgit/linux-toradex.git/commit/?id=69050f8d6d075dc01af7a5f2f550a8067510366f'/>
<id>69050f8d6d075dc01af7a5f2f550a8067510366f</id>
<content type='text'>
This is the result of running the Coccinelle script from
scripts/coccinelle/api/kmalloc_objs.cocci. The script is designed to
avoid scalar types (which need careful case-by-case checking), and
instead replace kmalloc-family calls that allocate struct or union
object instances:

Single allocations:	kmalloc(sizeof(TYPE), ...)
are replaced with:	kmalloc_obj(TYPE, ...)

Array allocations:	kmalloc_array(COUNT, sizeof(TYPE), ...)
are replaced with:	kmalloc_objs(TYPE, COUNT, ...)

Flex array allocations:	kmalloc(struct_size(PTR, FAM, COUNT), ...)
are replaced with:	kmalloc_flex(*PTR, FAM, COUNT, ...)

(where TYPE may also be *VAR)

The resulting allocations no longer return "void *", instead returning
"TYPE *".

Signed-off-by: Kees Cook &lt;kees@kernel.org&gt;
</content>
<content type='xhtml'>
<div xmlns='http://www.w3.org/1999/xhtml'>
<pre>
This is the result of running the Coccinelle script from
scripts/coccinelle/api/kmalloc_objs.cocci. The script is designed to
avoid scalar types (which need careful case-by-case checking), and
instead replace kmalloc-family calls that allocate struct or union
object instances:

Single allocations:	kmalloc(sizeof(TYPE), ...)
are replaced with:	kmalloc_obj(TYPE, ...)

Array allocations:	kmalloc_array(COUNT, sizeof(TYPE), ...)
are replaced with:	kmalloc_objs(TYPE, COUNT, ...)

Flex array allocations:	kmalloc(struct_size(PTR, FAM, COUNT), ...)
are replaced with:	kmalloc_flex(*PTR, FAM, COUNT, ...)

(where TYPE may also be *VAR)

The resulting allocations no longer return "void *", instead returning
"TYPE *".

Signed-off-by: Kees Cook &lt;kees@kernel.org&gt;
</pre>
</div>
</content>
</entry>
<entry>
<title>dmaengine: pch_dma: remove unused function chan2parent</title>
<updated>2024-04-07T13:06:58+00:00</updated>
<author>
<name>Colin Ian King</name>
<email>colin.i.king@gmail.com</email>
</author>
<published>2024-03-08T13:47:50+00:00</published>
<link rel='alternate' type='text/html' href='https://git.toradex.cn/cgit/linux-toradex.git/commit/?id=4665be0e952f68306cc6fba2cce68b940a7ec78c'/>
<id>4665be0e952f68306cc6fba2cce68b940a7ec78c</id>
<content type='text'>
The helper function chan2parent is not used and has never been
used since the first commit to the code back in 2010. The function
is redundant and can be removed.

Cleans up clang scan build warning:
drivers/dma/pch_dma.c:158:30: warning: unused function 'chan2parent' [-Wunused-function]

Signed-off-by: Colin Ian King &lt;colin.i.king@gmail.com&gt;
Link: https://lore.kernel.org/r/20240308134750.2058556-1-colin.i.king@gmail.com
Signed-off-by: Vinod Koul &lt;vkoul@kernel.org&gt;
</content>
<content type='xhtml'>
<div xmlns='http://www.w3.org/1999/xhtml'>
<pre>
The helper function chan2parent is not used and has never been
used since the first commit to the code back in 2010. The function
is redundant and can be removed.

Cleans up clang scan build warning:
drivers/dma/pch_dma.c:158:30: warning: unused function 'chan2parent' [-Wunused-function]

Signed-off-by: Colin Ian King &lt;colin.i.king@gmail.com&gt;
Link: https://lore.kernel.org/r/20240308134750.2058556-1-colin.i.king@gmail.com
Signed-off-by: Vinod Koul &lt;vkoul@kernel.org&gt;
</pre>
</div>
</content>
</entry>
<entry>
<title>dmaengine: pch_dma: Remove usage of the deprecated "pci-dma-compat.h" API</title>
<updated>2022-01-08T16:46:44+00:00</updated>
<author>
<name>Christophe JAILLET</name>
<email>christophe.jaillet@wanadoo.fr</email>
</author>
<published>2022-01-06T21:52:10+00:00</published>
<link rel='alternate' type='text/html' href='https://git.toradex.cn/cgit/linux-toradex.git/commit/?id=64aa8f4b6df107f46b6ac3e5331819824626b0af'/>
<id>64aa8f4b6df107f46b6ac3e5331819824626b0af</id>
<content type='text'>
In [1], Christoph Hellwig has proposed to remove the wrappers in
include/linux/pci-dma-compat.h.

Some reasons why this API should be removed have been given by Julia
Lawall in [2].

A coccinelle script has been used to perform the needed transformation.
It can be found in [3].

[1]: https://lore.kernel.org/kernel-janitors/20200421081257.GA131897@infradead.org/
[2]: https://lore.kernel.org/kernel-janitors/alpine.DEB.2.22.394.2007120902170.2424@hadrien/
[3]: https://lore.kernel.org/kernel-janitors/20200716192821.321233-1-christophe.jaillet@wanadoo.fr/

Signed-off-by: Christophe JAILLET &lt;christophe.jaillet@wanadoo.fr&gt;
Reviewed-by: Arnd Bergmann &lt;arnd@arndb.de&gt;
Link: https://lore.kernel.org/r/b88f25f3d07be92dd75494dc129a85619afb1366.1641500561.git.christophe.jaillet@wanadoo.fr
Signed-off-by: Vinod Koul &lt;vkoul@kernel.org&gt;
</content>
<content type='xhtml'>
<div xmlns='http://www.w3.org/1999/xhtml'>
<pre>
In [1], Christoph Hellwig has proposed to remove the wrappers in
include/linux/pci-dma-compat.h.

Some reasons why this API should be removed have been given by Julia
Lawall in [2].

A coccinelle script has been used to perform the needed transformation.
It can be found in [3].

[1]: https://lore.kernel.org/kernel-janitors/20200421081257.GA131897@infradead.org/
[2]: https://lore.kernel.org/kernel-janitors/alpine.DEB.2.22.394.2007120902170.2424@hadrien/
[3]: https://lore.kernel.org/kernel-janitors/20200716192821.321233-1-christophe.jaillet@wanadoo.fr/

Signed-off-by: Christophe JAILLET &lt;christophe.jaillet@wanadoo.fr&gt;
Reviewed-by: Arnd Bergmann &lt;arnd@arndb.de&gt;
Link: https://lore.kernel.org/r/b88f25f3d07be92dd75494dc129a85619afb1366.1641500561.git.christophe.jaillet@wanadoo.fr
Signed-off-by: Vinod Koul &lt;vkoul@kernel.org&gt;
</pre>
</div>
</content>
</entry>
<entry>
<title>dmaengine: pch_dma: convert tasklets to use new tasklet_setup() API</title>
<updated>2020-09-18T06:49:06+00:00</updated>
<author>
<name>Allen Pais</name>
<email>allen.lkml@gmail.com</email>
</author>
<published>2020-08-31T10:35:26+00:00</published>
<link rel='alternate' type='text/html' href='https://git.toradex.cn/cgit/linux-toradex.git/commit/?id=88ff5093ca30b73121930d2cf5f069ed2ffee6bb'/>
<id>88ff5093ca30b73121930d2cf5f069ed2ffee6bb</id>
<content type='text'>
In preparation for unconditionally passing the
struct tasklet_struct pointer to all tasklet
callbacks, switch to using the new tasklet_setup()
and from_tasklet() to pass the tasklet pointer explicitly.

Signed-off-by: Romain Perier &lt;romain.perier@gmail.com&gt;
Signed-off-by: Allen Pais &lt;allen.lkml@gmail.com&gt;
Link: https://lore.kernel.org/r/20200831103542.305571-20-allen.lkml@gmail.com
Signed-off-by: Vinod Koul &lt;vkoul@kernel.org&gt;
</content>
<content type='xhtml'>
<div xmlns='http://www.w3.org/1999/xhtml'>
<pre>
In preparation for unconditionally passing the
struct tasklet_struct pointer to all tasklet
callbacks, switch to using the new tasklet_setup()
and from_tasklet() to pass the tasklet pointer explicitly.

Signed-off-by: Romain Perier &lt;romain.perier@gmail.com&gt;
Signed-off-by: Allen Pais &lt;allen.lkml@gmail.com&gt;
Link: https://lore.kernel.org/r/20200831103542.305571-20-allen.lkml@gmail.com
Signed-off-by: Vinod Koul &lt;vkoul@kernel.org&gt;
</pre>
</div>
</content>
</entry>
<entry>
<title>dmaengine: pch_dma: use generic power management</title>
<updated>2020-08-17T04:53:55+00:00</updated>
<author>
<name>Vaibhav Gupta</name>
<email>vaibhavgupta40@gmail.com</email>
</author>
<published>2020-07-20T11:37:41+00:00</published>
<link rel='alternate' type='text/html' href='https://git.toradex.cn/cgit/linux-toradex.git/commit/?id=7db7f8e0a375d364c79cbc2d14ffe8ee594f0906'/>
<id>7db7f8e0a375d364c79cbc2d14ffe8ee594f0906</id>
<content type='text'>
Drivers using legacy PM have to manage PCI states and device's PM states
themselves. They also need to take care of configuration registers.

With improved and powerful support of generic PM, PCI Core takes care of
above mentioned, device-independent, jobs.

This driver makes use of PCI helper functions like
pci_save/restore_state(), pci_enable/disable_device(),
and pci_set_power_state() to do required operations. In generic mode, they
are no longer needed.

Change function parameter in both .suspend() and .resume() to
"struct device*" type. Use dev_get_drvdata() to get drv data.

Compile-tested only.

Signed-off-by: Vaibhav Gupta &lt;vaibhavgupta40@gmail.com&gt;
Reviewed-by: Andy Shevchenko &lt;andy.shevchenko@gmail.com&gt;
Link: https://lore.kernel.org/r/20200720113740.353479-1-vaibhavgupta40@gmail.com
Signed-off-by: Vinod Koul &lt;vkoul@kernel.org&gt;
</content>
<content type='xhtml'>
<div xmlns='http://www.w3.org/1999/xhtml'>
<pre>
Drivers using legacy PM have to manage PCI states and device's PM states
themselves. They also need to take care of configuration registers.

With improved and powerful support of generic PM, PCI Core takes care of
above mentioned, device-independent, jobs.

This driver makes use of PCI helper functions like
pci_save/restore_state(), pci_enable/disable_device(),
and pci_set_power_state() to do required operations. In generic mode, they
are no longer needed.

Change function parameter in both .suspend() and .resume() to
"struct device*" type. Use dev_get_drvdata() to get drv data.

Compile-tested only.

Signed-off-by: Vaibhav Gupta &lt;vaibhavgupta40@gmail.com&gt;
Reviewed-by: Andy Shevchenko &lt;andy.shevchenko@gmail.com&gt;
Link: https://lore.kernel.org/r/20200720113740.353479-1-vaibhavgupta40@gmail.com
Signed-off-by: Vinod Koul &lt;vkoul@kernel.org&gt;
</pre>
</div>
</content>
</entry>
<entry>
<title>dmaengine: pch_dma.c: Avoid data race between probe and irq handler</title>
<updated>2020-04-23T06:17:16+00:00</updated>
<author>
<name>Madhuparna Bhowmik</name>
<email>madhuparnabhowmik10@gmail.com</email>
</author>
<published>2020-04-16T06:23:35+00:00</published>
<link rel='alternate' type='text/html' href='https://git.toradex.cn/cgit/linux-toradex.git/commit/?id=2e45676a4d33af47259fa186ea039122ce263ba9'/>
<id>2e45676a4d33af47259fa186ea039122ce263ba9</id>
<content type='text'>
pd-&gt;dma.dev is read in irq handler pd_irq().
However, it is set to pdev-&gt;dev after request_irq().
Therefore, set pd-&gt;dma.dev to pdev-&gt;dev before request_irq() to
avoid data race between pch_dma_probe() and pd_irq().

Found by Linux Driver Verification project (linuxtesting.org).

Signed-off-by: Madhuparna Bhowmik &lt;madhuparnabhowmik10@gmail.com&gt;
Link: https://lore.kernel.org/r/20200416062335.29223-1-madhuparnabhowmik10@gmail.com
Signed-off-by: Vinod Koul &lt;vkoul@kernel.org&gt;
</content>
<content type='xhtml'>
<div xmlns='http://www.w3.org/1999/xhtml'>
<pre>
pd-&gt;dma.dev is read in irq handler pd_irq().
However, it is set to pdev-&gt;dev after request_irq().
Therefore, set pd-&gt;dma.dev to pdev-&gt;dev before request_irq() to
avoid data race between pch_dma_probe() and pd_irq().

Found by Linux Driver Verification project (linuxtesting.org).

Signed-off-by: Madhuparna Bhowmik &lt;madhuparnabhowmik10@gmail.com&gt;
Link: https://lore.kernel.org/r/20200416062335.29223-1-madhuparnabhowmik10@gmail.com
Signed-off-by: Vinod Koul &lt;vkoul@kernel.org&gt;
</pre>
</div>
</content>
</entry>
<entry>
<title>treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 174</title>
<updated>2019-05-30T18:26:41+00:00</updated>
<author>
<name>Thomas Gleixner</name>
<email>tglx@linutronix.de</email>
</author>
<published>2019-05-27T06:55:21+00:00</published>
<link rel='alternate' type='text/html' href='https://git.toradex.cn/cgit/linux-toradex.git/commit/?id=1802d0beecafe581ad584634ba92f8a471d8a63a'/>
<id>1802d0beecafe581ad584634ba92f8a471d8a63a</id>
<content type='text'>
Based on 1 normalized pattern(s):

  this program is free software you can redistribute it and or modify
  it under the terms of the gnu general public license version 2 as
  published by the free software foundation this program is
  distributed in the hope that it will be useful but without any
  warranty without even the implied warranty of merchantability or
  fitness for a particular purpose see the gnu general public license
  for more details

extracted by the scancode license scanner the SPDX license identifier

  GPL-2.0-only

has been chosen to replace the boilerplate/reference in 655 file(s).

Signed-off-by: Thomas Gleixner &lt;tglx@linutronix.de&gt;
Reviewed-by: Allison Randal &lt;allison@lohutok.net&gt;
Reviewed-by: Kate Stewart &lt;kstewart@linuxfoundation.org&gt;
Reviewed-by: Richard Fontana &lt;rfontana@redhat.com&gt;
Cc: linux-spdx@vger.kernel.org
Link: https://lkml.kernel.org/r/20190527070034.575739538@linutronix.de
Signed-off-by: Greg Kroah-Hartman &lt;gregkh@linuxfoundation.org&gt;
</content>
<content type='xhtml'>
<div xmlns='http://www.w3.org/1999/xhtml'>
<pre>
Based on 1 normalized pattern(s):

  this program is free software you can redistribute it and or modify
  it under the terms of the gnu general public license version 2 as
  published by the free software foundation this program is
  distributed in the hope that it will be useful but without any
  warranty without even the implied warranty of merchantability or
  fitness for a particular purpose see the gnu general public license
  for more details

extracted by the scancode license scanner the SPDX license identifier

  GPL-2.0-only

has been chosen to replace the boilerplate/reference in 655 file(s).

Signed-off-by: Thomas Gleixner &lt;tglx@linutronix.de&gt;
Reviewed-by: Allison Randal &lt;allison@lohutok.net&gt;
Reviewed-by: Kate Stewart &lt;kstewart@linuxfoundation.org&gt;
Reviewed-by: Richard Fontana &lt;rfontana@redhat.com&gt;
Cc: linux-spdx@vger.kernel.org
Link: https://lkml.kernel.org/r/20190527070034.575739538@linutronix.de
Signed-off-by: Greg Kroah-Hartman &lt;gregkh@linuxfoundation.org&gt;
</pre>
</div>
</content>
</entry>
<entry>
<title>PCI: Move Rohm Vendor ID to generic list</title>
<updated>2019-02-01T23:24:52+00:00</updated>
<author>
<name>Andy Shevchenko</name>
<email>andriy.shevchenko@linux.intel.com</email>
</author>
<published>2019-02-01T23:24:52+00:00</published>
<link rel='alternate' type='text/html' href='https://git.toradex.cn/cgit/linux-toradex.git/commit/?id=0ce26a1c31ca928df4dfc7504c8898b71ff9f5d5'/>
<id>0ce26a1c31ca928df4dfc7504c8898b71ff9f5d5</id>
<content type='text'>
Move the Rohm Vendor ID to pci_ids.h instead of defining it in several
drivers.

Signed-off-by: Andy Shevchenko &lt;andriy.shevchenko@linux.intel.com&gt;
Signed-off-by: Bjorn Helgaas &lt;bhelgaas@google.com&gt;
Acked-by: Mark Brown &lt;broonie@kernel.org&gt;
Acked-by: Linus Walleij &lt;linus.walleij@linaro.org&gt;</content>
<content type='xhtml'>
<div xmlns='http://www.w3.org/1999/xhtml'>
<pre>
Move the Rohm Vendor ID to pci_ids.h instead of defining it in several
drivers.

Signed-off-by: Andy Shevchenko &lt;andriy.shevchenko@linux.intel.com&gt;
Signed-off-by: Bjorn Helgaas &lt;bhelgaas@google.com&gt;
Acked-by: Mark Brown &lt;broonie@kernel.org&gt;
Acked-by: Linus Walleij &lt;linus.walleij@linaro.org&gt;</pre>
</div>
</content>
</entry>
<entry>
<title>dmaengine: pch_dma: Replace PCI pool old API</title>
<updated>2017-10-31T11:31:06+00:00</updated>
<author>
<name>Romain Perier</name>
<email>romain.perier@collabora.com</email>
</author>
<published>2017-10-23T17:59:55+00:00</published>
<link rel='alternate' type='text/html' href='https://git.toradex.cn/cgit/linux-toradex.git/commit/?id=10c191a11c79bb576817f280e93bdfe4bb8b1cd0'/>
<id>10c191a11c79bb576817f280e93bdfe4bb8b1cd0</id>
<content type='text'>
The PCI pool API is deprecated. This commit replaces the PCI pool old
API by the appropriate function with the DMA pool API.

Signed-off-by: Romain Perier &lt;romain.perier@collabora.com&gt;
Acked-by: Peter Senna Tschudin &lt;peter.senna@collabora.com&gt;
Tested-by: Peter Senna Tschudin &lt;peter.senna@collabora.com&gt;
Signed-off-by: Vinod Koul &lt;vinod.koul@intel.com&gt;
</content>
<content type='xhtml'>
<div xmlns='http://www.w3.org/1999/xhtml'>
<pre>
The PCI pool API is deprecated. This commit replaces the PCI pool old
API by the appropriate function with the DMA pool API.

Signed-off-by: Romain Perier &lt;romain.perier@collabora.com&gt;
Acked-by: Peter Senna Tschudin &lt;peter.senna@collabora.com&gt;
Tested-by: Peter Senna Tschudin &lt;peter.senna@collabora.com&gt;
Signed-off-by: Vinod Koul &lt;vinod.koul@intel.com&gt;
</pre>
</div>
</content>
</entry>
</feed>
