<feed xmlns='http://www.w3.org/2005/Atom'>
<title>linux-toradex.git/drivers/hid/hid-prodikeys.c, branch v6.11</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>HID: add missing MODULE_DESCRIPTION() macros</title>
<updated>2024-06-06T08:52:48+00:00</updated>
<author>
<name>Jeff Johnson</name>
<email>quic_jjohnson@quicinc.com</email>
</author>
<published>2024-06-04T22:10:23+00:00</published>
<link rel='alternate' type='text/html' href='https://git.toradex.cn/cgit/linux-toradex.git/commit/?id=9d262f35b1155d6f56b6fd1dc054ec218e42696b'/>
<id>9d262f35b1155d6f56b6fd1dc054ec218e42696b</id>
<content type='text'>
make allmodconfig &amp;&amp; make W=1 C=1 reports:
WARNING: modpost: missing MODULE_DESCRIPTION() in drivers/hid/hid.o
WARNING: modpost: missing MODULE_DESCRIPTION() in drivers/hid/hid-a4tech.o
WARNING: modpost: missing MODULE_DESCRIPTION() in drivers/hid/hid-apple.o
WARNING: modpost: missing MODULE_DESCRIPTION() in drivers/hid/hid-aureal.o
WARNING: modpost: missing MODULE_DESCRIPTION() in drivers/hid/hid-belkin.o
WARNING: modpost: missing MODULE_DESCRIPTION() in drivers/hid/hid-betopff.o
WARNING: modpost: missing MODULE_DESCRIPTION() in drivers/hid/hid-bigbenff.o
WARNING: modpost: missing MODULE_DESCRIPTION() in drivers/hid/hid-cherry.o
WARNING: modpost: missing MODULE_DESCRIPTION() in drivers/hid/hid-chicony.o
WARNING: modpost: missing MODULE_DESCRIPTION() in drivers/hid/hid-cypress.o
WARNING: modpost: missing MODULE_DESCRIPTION() in drivers/hid/hid-dr.o
WARNING: modpost: missing MODULE_DESCRIPTION() in drivers/hid/hid-emsff.o
WARNING: modpost: missing MODULE_DESCRIPTION() in drivers/hid/hid-elecom.o
WARNING: modpost: missing MODULE_DESCRIPTION() in drivers/hid/hid-elo.o
WARNING: modpost: missing MODULE_DESCRIPTION() in drivers/hid/hid-evision.o
WARNING: modpost: missing MODULE_DESCRIPTION() in drivers/hid/hid-ezkey.o
WARNING: modpost: missing MODULE_DESCRIPTION() in drivers/hid/hid-vivaldi-common.o
WARNING: modpost: missing MODULE_DESCRIPTION() in drivers/hid/hid-google-hammer.o
WARNING: modpost: missing MODULE_DESCRIPTION() in drivers/hid/hid-google-stadiaff.o
WARNING: modpost: missing MODULE_DESCRIPTION() in drivers/hid/hid-gyration.o
WARNING: modpost: missing MODULE_DESCRIPTION() in drivers/hid/hid-holtek-kbd.o
WARNING: modpost: missing MODULE_DESCRIPTION() in drivers/hid/hid-holtek-mouse.o
WARNING: modpost: missing MODULE_DESCRIPTION() in drivers/hid/hid-ite.o
WARNING: modpost: missing MODULE_DESCRIPTION() in drivers/hid/hid-kensington.o
WARNING: modpost: missing MODULE_DESCRIPTION() in drivers/hid/hid-keytouch.o
WARNING: modpost: missing MODULE_DESCRIPTION() in drivers/hid/hid-kye.o
WARNING: modpost: missing MODULE_DESCRIPTION() in drivers/hid/hid-lcpower.o
WARNING: modpost: missing MODULE_DESCRIPTION() in drivers/hid/hid-lenovo.o
WARNING: modpost: missing MODULE_DESCRIPTION() in drivers/hid/hid-logitech.o
WARNING: modpost: missing MODULE_DESCRIPTION() in drivers/hid/hid-magicmouse.o
WARNING: modpost: missing MODULE_DESCRIPTION() in drivers/hid/hid-maltron.o
WARNING: modpost: missing MODULE_DESCRIPTION() in drivers/hid/hid-mf.o
WARNING: modpost: missing MODULE_DESCRIPTION() in drivers/hid/hid-megaworld.o
WARNING: modpost: missing MODULE_DESCRIPTION() in drivers/hid/hid-microsoft.o
WARNING: modpost: missing MODULE_DESCRIPTION() in drivers/hid/hid-monterey.o
WARNING: modpost: missing MODULE_DESCRIPTION() in drivers/hid/hid-ntrig.o
WARNING: modpost: missing MODULE_DESCRIPTION() in drivers/hid/hid-ortek.o
WARNING: modpost: missing MODULE_DESCRIPTION() in drivers/hid/hid-prodikeys.o
WARNING: modpost: missing MODULE_DESCRIPTION() in drivers/hid/hid-pl.o
WARNING: modpost: missing MODULE_DESCRIPTION() in drivers/hid/hid-petalynx.o
WARNING: modpost: missing MODULE_DESCRIPTION() in drivers/hid/hid-primax.o
WARNING: modpost: missing MODULE_DESCRIPTION() in drivers/hid/hid-razer.o
WARNING: modpost: missing MODULE_DESCRIPTION() in drivers/hid/hid-redragon.o
WARNING: modpost: missing MODULE_DESCRIPTION() in drivers/hid/hid-retrode.o
WARNING: modpost: missing MODULE_DESCRIPTION() in drivers/hid/hid-saitek.o
WARNING: modpost: missing MODULE_DESCRIPTION() in drivers/hid/hid-samsung.o
WARNING: modpost: missing MODULE_DESCRIPTION() in drivers/hid/hid-semitek.o
WARNING: modpost: missing MODULE_DESCRIPTION() in drivers/hid/hid-sjoy.o
WARNING: modpost: missing MODULE_DESCRIPTION() in drivers/hid/hid-sony.o
WARNING: modpost: missing MODULE_DESCRIPTION() in drivers/hid/hid-speedlink.o
WARNING: modpost: missing MODULE_DESCRIPTION() in drivers/hid/hid-steam.o
WARNING: modpost: missing MODULE_DESCRIPTION() in drivers/hid/hid-steelseries.o
WARNING: modpost: missing MODULE_DESCRIPTION() in drivers/hid/hid-sunplus.o
WARNING: modpost: missing MODULE_DESCRIPTION() in drivers/hid/hid-gaff.o
WARNING: modpost: missing MODULE_DESCRIPTION() in drivers/hid/hid-tmff.o
WARNING: modpost: missing MODULE_DESCRIPTION() in drivers/hid/hid-tivo.o
WARNING: modpost: missing MODULE_DESCRIPTION() in drivers/hid/hid-topseed.o
WARNING: modpost: missing MODULE_DESCRIPTION() in drivers/hid/hid-twinhan.o
WARNING: modpost: missing MODULE_DESCRIPTION() in drivers/hid/hid-uclogic.o
WARNING: modpost: missing MODULE_DESCRIPTION() in drivers/hid/hid-xinmo.o
WARNING: modpost: missing MODULE_DESCRIPTION() in drivers/hid/hid-zpff.o
WARNING: modpost: missing MODULE_DESCRIPTION() in drivers/hid/hid-zydacron.o
WARNING: modpost: missing MODULE_DESCRIPTION() in drivers/hid/hid-viewsonic.o
WARNING: modpost: missing MODULE_DESCRIPTION() in drivers/hid/hid-waltop.o
WARNING: modpost: missing MODULE_DESCRIPTION() in drivers/hid/hid-winwing.o

Add the missing invocations of the MODULE_DESCRIPTION() macro.

Note: All HID drivers that had explicit entries in the MAINTAINERS
file were fixed individually. This patch fixes all remaining HID
drivers that fall under the generic "HID CORE LAYER" entry in the
MAINTAINERS file.  Almost all descriptions were taken from the header
comment in each file.

Signed-off-by: Jeff Johnson &lt;quic_jjohnson@quicinc.com&gt;
Link: https://lore.kernel.org/r/20240604-md-hid-misc-v1-1-4f9560796f3c@quicinc.com
Signed-off-by: Benjamin Tissoires &lt;bentiss@kernel.org&gt;
</content>
<content type='xhtml'>
<div xmlns='http://www.w3.org/1999/xhtml'>
<pre>
make allmodconfig &amp;&amp; make W=1 C=1 reports:
WARNING: modpost: missing MODULE_DESCRIPTION() in drivers/hid/hid.o
WARNING: modpost: missing MODULE_DESCRIPTION() in drivers/hid/hid-a4tech.o
WARNING: modpost: missing MODULE_DESCRIPTION() in drivers/hid/hid-apple.o
WARNING: modpost: missing MODULE_DESCRIPTION() in drivers/hid/hid-aureal.o
WARNING: modpost: missing MODULE_DESCRIPTION() in drivers/hid/hid-belkin.o
WARNING: modpost: missing MODULE_DESCRIPTION() in drivers/hid/hid-betopff.o
WARNING: modpost: missing MODULE_DESCRIPTION() in drivers/hid/hid-bigbenff.o
WARNING: modpost: missing MODULE_DESCRIPTION() in drivers/hid/hid-cherry.o
WARNING: modpost: missing MODULE_DESCRIPTION() in drivers/hid/hid-chicony.o
WARNING: modpost: missing MODULE_DESCRIPTION() in drivers/hid/hid-cypress.o
WARNING: modpost: missing MODULE_DESCRIPTION() in drivers/hid/hid-dr.o
WARNING: modpost: missing MODULE_DESCRIPTION() in drivers/hid/hid-emsff.o
WARNING: modpost: missing MODULE_DESCRIPTION() in drivers/hid/hid-elecom.o
WARNING: modpost: missing MODULE_DESCRIPTION() in drivers/hid/hid-elo.o
WARNING: modpost: missing MODULE_DESCRIPTION() in drivers/hid/hid-evision.o
WARNING: modpost: missing MODULE_DESCRIPTION() in drivers/hid/hid-ezkey.o
WARNING: modpost: missing MODULE_DESCRIPTION() in drivers/hid/hid-vivaldi-common.o
WARNING: modpost: missing MODULE_DESCRIPTION() in drivers/hid/hid-google-hammer.o
WARNING: modpost: missing MODULE_DESCRIPTION() in drivers/hid/hid-google-stadiaff.o
WARNING: modpost: missing MODULE_DESCRIPTION() in drivers/hid/hid-gyration.o
WARNING: modpost: missing MODULE_DESCRIPTION() in drivers/hid/hid-holtek-kbd.o
WARNING: modpost: missing MODULE_DESCRIPTION() in drivers/hid/hid-holtek-mouse.o
WARNING: modpost: missing MODULE_DESCRIPTION() in drivers/hid/hid-ite.o
WARNING: modpost: missing MODULE_DESCRIPTION() in drivers/hid/hid-kensington.o
WARNING: modpost: missing MODULE_DESCRIPTION() in drivers/hid/hid-keytouch.o
WARNING: modpost: missing MODULE_DESCRIPTION() in drivers/hid/hid-kye.o
WARNING: modpost: missing MODULE_DESCRIPTION() in drivers/hid/hid-lcpower.o
WARNING: modpost: missing MODULE_DESCRIPTION() in drivers/hid/hid-lenovo.o
WARNING: modpost: missing MODULE_DESCRIPTION() in drivers/hid/hid-logitech.o
WARNING: modpost: missing MODULE_DESCRIPTION() in drivers/hid/hid-magicmouse.o
WARNING: modpost: missing MODULE_DESCRIPTION() in drivers/hid/hid-maltron.o
WARNING: modpost: missing MODULE_DESCRIPTION() in drivers/hid/hid-mf.o
WARNING: modpost: missing MODULE_DESCRIPTION() in drivers/hid/hid-megaworld.o
WARNING: modpost: missing MODULE_DESCRIPTION() in drivers/hid/hid-microsoft.o
WARNING: modpost: missing MODULE_DESCRIPTION() in drivers/hid/hid-monterey.o
WARNING: modpost: missing MODULE_DESCRIPTION() in drivers/hid/hid-ntrig.o
WARNING: modpost: missing MODULE_DESCRIPTION() in drivers/hid/hid-ortek.o
WARNING: modpost: missing MODULE_DESCRIPTION() in drivers/hid/hid-prodikeys.o
WARNING: modpost: missing MODULE_DESCRIPTION() in drivers/hid/hid-pl.o
WARNING: modpost: missing MODULE_DESCRIPTION() in drivers/hid/hid-petalynx.o
WARNING: modpost: missing MODULE_DESCRIPTION() in drivers/hid/hid-primax.o
WARNING: modpost: missing MODULE_DESCRIPTION() in drivers/hid/hid-razer.o
WARNING: modpost: missing MODULE_DESCRIPTION() in drivers/hid/hid-redragon.o
WARNING: modpost: missing MODULE_DESCRIPTION() in drivers/hid/hid-retrode.o
WARNING: modpost: missing MODULE_DESCRIPTION() in drivers/hid/hid-saitek.o
WARNING: modpost: missing MODULE_DESCRIPTION() in drivers/hid/hid-samsung.o
WARNING: modpost: missing MODULE_DESCRIPTION() in drivers/hid/hid-semitek.o
WARNING: modpost: missing MODULE_DESCRIPTION() in drivers/hid/hid-sjoy.o
WARNING: modpost: missing MODULE_DESCRIPTION() in drivers/hid/hid-sony.o
WARNING: modpost: missing MODULE_DESCRIPTION() in drivers/hid/hid-speedlink.o
WARNING: modpost: missing MODULE_DESCRIPTION() in drivers/hid/hid-steam.o
WARNING: modpost: missing MODULE_DESCRIPTION() in drivers/hid/hid-steelseries.o
WARNING: modpost: missing MODULE_DESCRIPTION() in drivers/hid/hid-sunplus.o
WARNING: modpost: missing MODULE_DESCRIPTION() in drivers/hid/hid-gaff.o
WARNING: modpost: missing MODULE_DESCRIPTION() in drivers/hid/hid-tmff.o
WARNING: modpost: missing MODULE_DESCRIPTION() in drivers/hid/hid-tivo.o
WARNING: modpost: missing MODULE_DESCRIPTION() in drivers/hid/hid-topseed.o
WARNING: modpost: missing MODULE_DESCRIPTION() in drivers/hid/hid-twinhan.o
WARNING: modpost: missing MODULE_DESCRIPTION() in drivers/hid/hid-uclogic.o
WARNING: modpost: missing MODULE_DESCRIPTION() in drivers/hid/hid-xinmo.o
WARNING: modpost: missing MODULE_DESCRIPTION() in drivers/hid/hid-zpff.o
WARNING: modpost: missing MODULE_DESCRIPTION() in drivers/hid/hid-zydacron.o
WARNING: modpost: missing MODULE_DESCRIPTION() in drivers/hid/hid-viewsonic.o
WARNING: modpost: missing MODULE_DESCRIPTION() in drivers/hid/hid-waltop.o
WARNING: modpost: missing MODULE_DESCRIPTION() in drivers/hid/hid-winwing.o

Add the missing invocations of the MODULE_DESCRIPTION() macro.

Note: All HID drivers that had explicit entries in the MAINTAINERS
file were fixed individually. This patch fixes all remaining HID
drivers that fall under the generic "HID CORE LAYER" entry in the
MAINTAINERS file.  Almost all descriptions were taken from the header
comment in each file.

Signed-off-by: Jeff Johnson &lt;quic_jjohnson@quicinc.com&gt;
Link: https://lore.kernel.org/r/20240604-md-hid-misc-v1-1-4f9560796f3c@quicinc.com
Signed-off-by: Benjamin Tissoires &lt;bentiss@kernel.org&gt;
</pre>
</div>
</content>
</entry>
<entry>
<title>HID: hid-prodikeys: remove struct pk_device</title>
<updated>2024-02-13T10:43:55+00:00</updated>
<author>
<name>Jiri Slaby (SUSE)</name>
<email>jirislaby@kernel.org</email>
</author>
<published>2024-02-01T11:53:20+00:00</published>
<link rel='alternate' type='text/html' href='https://git.toradex.cn/cgit/linux-toradex.git/commit/?id=16d0e1d469cc16aefa8ef745e926eda473a9b221'/>
<id>16d0e1d469cc16aefa8ef745e926eda473a9b221</id>
<content type='text'>
First, quirks was unused in struct pk_device.

And I see no reason for this additional level of indirection. struct
pcmidi_snd is far enough for the driver. Unless I am missing something?

So drop struct pk_device and convert all the users to use struct
pcmidi_snd directly. No need for doubled kmalloc+kfrees now.

Found by https://github.com/jirislaby/clang-struct.

Signed-off-by: Jiri Slaby (SUSE) &lt;jirislaby@kernel.org&gt;
Cc: Jiri Kosina &lt;jikos@kernel.org&gt;
Cc: Benjamin Tissoires &lt;benjamin.tissoires@redhat.com&gt;
Signed-off-by: Jiri Kosina &lt;jkosina@suse.com&gt;
</content>
<content type='xhtml'>
<div xmlns='http://www.w3.org/1999/xhtml'>
<pre>
First, quirks was unused in struct pk_device.

And I see no reason for this additional level of indirection. struct
pcmidi_snd is far enough for the driver. Unless I am missing something?

So drop struct pk_device and convert all the users to use struct
pcmidi_snd directly. No need for doubled kmalloc+kfrees now.

Found by https://github.com/jirislaby/clang-struct.

Signed-off-by: Jiri Slaby (SUSE) &lt;jirislaby@kernel.org&gt;
Cc: Jiri Kosina &lt;jikos@kernel.org&gt;
Cc: Benjamin Tissoires &lt;benjamin.tissoires@redhat.com&gt;
Signed-off-by: Jiri Kosina &lt;jkosina@suse.com&gt;
</pre>
</div>
</content>
</entry>
<entry>
<title>HID: hid-prodikeys: remove unused struct pcmidi_snd members</title>
<updated>2024-02-13T10:43:55+00:00</updated>
<author>
<name>Jiri Slaby (SUSE)</name>
<email>jirislaby@kernel.org</email>
</author>
<published>2024-02-01T11:53:19+00:00</published>
<link rel='alternate' type='text/html' href='https://git.toradex.cn/cgit/linux-toradex.git/commit/?id=22ec8982dcf6059944bc2ee811d5758e3c60d649'/>
<id>22ec8982dcf6059944bc2ee811d5758e3c60d649</id>
<content type='text'>
struct pcmidi_snd contains two unused members: out_substream and
out_active. They were added along the driver in commit 3a370ca1dcf8
(HID: Prodikeys PC-MIDI HID Driver), but not used.

Drop them.

Found by https://github.com/jirislaby/clang-struct.

Signed-off-by: Jiri Slaby (SUSE) &lt;jirislaby@kernel.org&gt;
Cc: Jiri Kosina &lt;jikos@kernel.org&gt;
Cc: Benjamin Tissoires &lt;benjamin.tissoires@redhat.com&gt;
Signed-off-by: Jiri Kosina &lt;jkosina@suse.com&gt;
</content>
<content type='xhtml'>
<div xmlns='http://www.w3.org/1999/xhtml'>
<pre>
struct pcmidi_snd contains two unused members: out_substream and
out_active. They were added along the driver in commit 3a370ca1dcf8
(HID: Prodikeys PC-MIDI HID Driver), but not used.

Drop them.

Found by https://github.com/jirislaby/clang-struct.

Signed-off-by: Jiri Slaby (SUSE) &lt;jirislaby@kernel.org&gt;
Cc: Jiri Kosina &lt;jikos@kernel.org&gt;
Cc: Benjamin Tissoires &lt;benjamin.tissoires@redhat.com&gt;
Signed-off-by: Jiri Kosina &lt;jkosina@suse.com&gt;
</pre>
</div>
</content>
</entry>
<entry>
<title>HID: prodikeys: Replace deprecated strncpy() with strscpy()</title>
<updated>2023-09-29T21:48:31+00:00</updated>
<author>
<name>Justin Stitt</name>
<email>justinstitt@google.com</email>
</author>
<published>2023-09-14T22:20:55+00:00</published>
<link rel='alternate' type='text/html' href='https://git.toradex.cn/cgit/linux-toradex.git/commit/?id=abe6db6c43fa59c4755f210e92d6fbe97a0ad1aa'/>
<id>abe6db6c43fa59c4755f210e92d6fbe97a0ad1aa</id>
<content type='text'>
`strncpy` is deprecated for use on NUL-terminated destination strings [1].

We should prefer more robust and less ambiguous string interfaces.

A suitable replacement is `strscpy` [2] due to the fact that it guarantees
NUL-termination on the destination buffer without unnecessarily NUL-padding.

Link: https://www.kernel.org/doc/html/latest/process/deprecated.html#strncpy-on-nul-terminated-strings [1]
Link: https://manpages.debian.org/testing/linux-manual-4.8/strscpy.9.en.html [2]
Link: https://github.com/KSPP/linux/issues/90
Cc: linux-hardening@vger.kernel.org
Signed-off-by: Justin Stitt &lt;justinstitt@google.com&gt;
Reviewed-by: Kees Cook &lt;keescook@chromium.org&gt;
Link: https://lore.kernel.org/r/20230914-strncpy-drivers-hid-hid-prodikeys-c-v1-1-10c00550f2c2@google.com
Signed-off-by: Kees Cook &lt;keescook@chromium.org&gt;
</content>
<content type='xhtml'>
<div xmlns='http://www.w3.org/1999/xhtml'>
<pre>
`strncpy` is deprecated for use on NUL-terminated destination strings [1].

We should prefer more robust and less ambiguous string interfaces.

A suitable replacement is `strscpy` [2] due to the fact that it guarantees
NUL-termination on the destination buffer without unnecessarily NUL-padding.

Link: https://www.kernel.org/doc/html/latest/process/deprecated.html#strncpy-on-nul-terminated-strings [1]
Link: https://manpages.debian.org/testing/linux-manual-4.8/strscpy.9.en.html [2]
Link: https://github.com/KSPP/linux/issues/90
Cc: linux-hardening@vger.kernel.org
Signed-off-by: Justin Stitt &lt;justinstitt@google.com&gt;
Reviewed-by: Kees Cook &lt;keescook@chromium.org&gt;
Link: https://lore.kernel.org/r/20230914-strncpy-drivers-hid-hid-prodikeys-c-v1-1-10c00550f2c2@google.com
Signed-off-by: Kees Cook &lt;keescook@chromium.org&gt;
</pre>
</div>
</content>
</entry>
<entry>
<title>HID: check for valid USB device for many HID drivers</title>
<updated>2021-12-02T14:36:18+00:00</updated>
<author>
<name>Greg Kroah-Hartman</name>
<email>gregkh@linuxfoundation.org</email>
</author>
<published>2021-12-01T18:35:03+00:00</published>
<link rel='alternate' type='text/html' href='https://git.toradex.cn/cgit/linux-toradex.git/commit/?id=93020953d0fa7035fd036ad87a47ae2b7aa4ae33'/>
<id>93020953d0fa7035fd036ad87a47ae2b7aa4ae33</id>
<content type='text'>
Many HID drivers assume that the HID device assigned to them is a USB
device as that was the only way HID devices used to be able to be
created in Linux.  However, with the additional ways that HID devices
can be created for many different bus types, that is no longer true, so
properly check that we have a USB device associated with the HID device
before allowing a driver that makes this assumption to claim it.

Cc: Jiri Kosina &lt;jikos@kernel.org&gt;
Cc: Benjamin Tissoires &lt;benjamin.tissoires@redhat.com&gt;
Cc: Michael Zaidman &lt;michael.zaidman@gmail.com&gt;
Cc: Stefan Achatz &lt;erazor_de@users.sourceforge.net&gt;
Cc: Maxime Coquelin &lt;mcoquelin.stm32@gmail.com&gt;
Cc: Alexandre Torgue &lt;alexandre.torgue@foss.st.com&gt;
Cc: linux-input@vger.kernel.org
Cc: stable@vger.kernel.org
Signed-off-by: Greg Kroah-Hartman &lt;gregkh@linuxfoundation.org&gt;
Tested-by: Benjamin Tissoires &lt;benjamin.tissoires@redhat.com&gt;
[bentiss: amended for thrustmater.c hunk to apply]
Signed-off-by: Benjamin Tissoires &lt;benjamin.tissoires@redhat.com&gt;
Link: https://lore.kernel.org/r/20211201183503.2373082-3-gregkh@linuxfoundation.org
</content>
<content type='xhtml'>
<div xmlns='http://www.w3.org/1999/xhtml'>
<pre>
Many HID drivers assume that the HID device assigned to them is a USB
device as that was the only way HID devices used to be able to be
created in Linux.  However, with the additional ways that HID devices
can be created for many different bus types, that is no longer true, so
properly check that we have a USB device associated with the HID device
before allowing a driver that makes this assumption to claim it.

Cc: Jiri Kosina &lt;jikos@kernel.org&gt;
Cc: Benjamin Tissoires &lt;benjamin.tissoires@redhat.com&gt;
Cc: Michael Zaidman &lt;michael.zaidman@gmail.com&gt;
Cc: Stefan Achatz &lt;erazor_de@users.sourceforge.net&gt;
Cc: Maxime Coquelin &lt;mcoquelin.stm32@gmail.com&gt;
Cc: Alexandre Torgue &lt;alexandre.torgue@foss.st.com&gt;
Cc: linux-input@vger.kernel.org
Cc: stable@vger.kernel.org
Signed-off-by: Greg Kroah-Hartman &lt;gregkh@linuxfoundation.org&gt;
Tested-by: Benjamin Tissoires &lt;benjamin.tissoires@redhat.com&gt;
[bentiss: amended for thrustmater.c hunk to apply]
Signed-off-by: Benjamin Tissoires &lt;benjamin.tissoires@redhat.com&gt;
Link: https://lore.kernel.org/r/20211201183503.2373082-3-gregkh@linuxfoundation.org
</pre>
</div>
</content>
</entry>
<entry>
<title>HID: prodikeys: make array keys static const, makes object smaller</title>
<updated>2019-10-01T14:21:04+00:00</updated>
<author>
<name>Colin Ian King</name>
<email>colin.king@canonical.com</email>
</author>
<published>2019-09-05T16:54:06+00:00</published>
<link rel='alternate' type='text/html' href='https://git.toradex.cn/cgit/linux-toradex.git/commit/?id=fe2199cfd1516e90e03c033c52c9a28da09d9986'/>
<id>fe2199cfd1516e90e03c033c52c9a28da09d9986</id>
<content type='text'>
Don't populate the array keys on the stack but instead make it
static const. Makes the object code smaller by 166 bytes.

Before:
   text	   data	    bss	    dec	    hex	filename
  18931	   5872	    480	  25283	   62c3	drivers/hid/hid-prodikeys.o

After:
   text	   data	    bss	    dec	    hex	filename
  18669	   5968	    480	  25117	   621d	drivers/hid/hid-prodikeys.o

(gcc version 9.2.1, amd64)

Signed-off-by: Colin Ian King &lt;colin.king@canonical.com&gt;
Signed-off-by: Jiri Kosina &lt;jkosina@suse.cz&gt;
</content>
<content type='xhtml'>
<div xmlns='http://www.w3.org/1999/xhtml'>
<pre>
Don't populate the array keys on the stack but instead make it
static const. Makes the object code smaller by 166 bytes.

Before:
   text	   data	    bss	    dec	    hex	filename
  18931	   5872	    480	  25283	   62c3	drivers/hid/hid-prodikeys.o

After:
   text	   data	    bss	    dec	    hex	filename
  18669	   5968	    480	  25117	   621d	drivers/hid/hid-prodikeys.o

(gcc version 9.2.1, amd64)

Signed-off-by: Colin Ian King &lt;colin.king@canonical.com&gt;
Signed-off-by: Jiri Kosina &lt;jkosina@suse.cz&gt;
</pre>
</div>
</content>
</entry>
<entry>
<title>HID: prodikeys: Fix general protection fault during probe</title>
<updated>2019-09-05T13:02:59+00:00</updated>
<author>
<name>Alan Stern</name>
<email>stern@rowland.harvard.edu</email>
</author>
<published>2019-09-04T15:54:20+00:00</published>
<link rel='alternate' type='text/html' href='https://git.toradex.cn/cgit/linux-toradex.git/commit/?id=98375b86c79137416e9fd354177b85e768c16e56'/>
<id>98375b86c79137416e9fd354177b85e768c16e56</id>
<content type='text'>
The syzbot fuzzer provoked a general protection fault in the
hid-prodikeys driver:

kasan: CONFIG_KASAN_INLINE enabled
kasan: GPF could be caused by NULL-ptr deref or user memory access
general protection fault: 0000 [#1] SMP KASAN
CPU: 0 PID: 12 Comm: kworker/0:1 Not tainted 5.3.0-rc5+ #28
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS
Google 01/01/2011
Workqueue: usb_hub_wq hub_event
RIP: 0010:pcmidi_submit_output_report drivers/hid/hid-prodikeys.c:300  [inline]
RIP: 0010:pcmidi_set_operational drivers/hid/hid-prodikeys.c:558 [inline]
RIP: 0010:pcmidi_snd_initialise drivers/hid/hid-prodikeys.c:686 [inline]
RIP: 0010:pk_probe+0xb51/0xfd0 drivers/hid/hid-prodikeys.c:836
Code: 0f 85 50 04 00 00 48 8b 04 24 4c 89 7d 10 48 8b 58 08 e8 b2 53 e4 fc
48 8b 54 24 20 48 b8 00 00 00 00 00 fc ff df 48 c1 ea 03 &lt;80&gt; 3c 02 00 0f
85 13 04 00 00 48 ba 00 00 00 00 00 fc ff df 49 8b

The problem is caused by the fact that pcmidi_get_output_report() will
return an error if the HID device doesn't provide the right sort of
output report, but pcmidi_set_operational() doesn't bother to check
the return code and assumes the function call always succeeds.

This patch adds the missing check and aborts the probe operation if
necessary.

Reported-and-tested-by: syzbot+1088533649dafa1c9004@syzkaller.appspotmail.com
Signed-off-by: Alan Stern &lt;stern@rowland.harvard.edu&gt;
CC: &lt;stable@vger.kernel.org&gt;
Signed-off-by: Jiri Kosina &lt;jkosina@suse.cz&gt;
</content>
<content type='xhtml'>
<div xmlns='http://www.w3.org/1999/xhtml'>
<pre>
The syzbot fuzzer provoked a general protection fault in the
hid-prodikeys driver:

kasan: CONFIG_KASAN_INLINE enabled
kasan: GPF could be caused by NULL-ptr deref or user memory access
general protection fault: 0000 [#1] SMP KASAN
CPU: 0 PID: 12 Comm: kworker/0:1 Not tainted 5.3.0-rc5+ #28
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS
Google 01/01/2011
Workqueue: usb_hub_wq hub_event
RIP: 0010:pcmidi_submit_output_report drivers/hid/hid-prodikeys.c:300  [inline]
RIP: 0010:pcmidi_set_operational drivers/hid/hid-prodikeys.c:558 [inline]
RIP: 0010:pcmidi_snd_initialise drivers/hid/hid-prodikeys.c:686 [inline]
RIP: 0010:pk_probe+0xb51/0xfd0 drivers/hid/hid-prodikeys.c:836
Code: 0f 85 50 04 00 00 48 8b 04 24 4c 89 7d 10 48 8b 58 08 e8 b2 53 e4 fc
48 8b 54 24 20 48 b8 00 00 00 00 00 fc ff df 48 c1 ea 03 &lt;80&gt; 3c 02 00 0f
85 13 04 00 00 48 ba 00 00 00 00 00 fc ff df 49 8b

The problem is caused by the fact that pcmidi_get_output_report() will
return an error if the HID device doesn't provide the right sort of
output report, but pcmidi_set_operational() doesn't bother to check
the return code and assumes the function call always succeeds.

This patch adds the missing check and aborts the probe operation if
necessary.

Reported-and-tested-by: syzbot+1088533649dafa1c9004@syzkaller.appspotmail.com
Signed-off-by: Alan Stern &lt;stern@rowland.harvard.edu&gt;
CC: &lt;stable@vger.kernel.org&gt;
Signed-off-by: Jiri Kosina &lt;jkosina@suse.cz&gt;
</pre>
</div>
</content>
</entry>
<entry>
<title>treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 152</title>
<updated>2019-05-30T18:26:32+00:00</updated>
<author>
<name>Thomas Gleixner</name>
<email>tglx@linutronix.de</email>
</author>
<published>2019-05-27T06:55:01+00:00</published>
<link rel='alternate' type='text/html' href='https://git.toradex.cn/cgit/linux-toradex.git/commit/?id=2874c5fd284268364ece81a7bd936f3c8168e567'/>
<id>2874c5fd284268364ece81a7bd936f3c8168e567</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 as published by
  the free software foundation either version 2 of the license or at
  your option any later version

extracted by the scancode license scanner the SPDX license identifier

  GPL-2.0-or-later

has been chosen to replace the boilerplate/reference in 3029 file(s).

Signed-off-by: Thomas Gleixner &lt;tglx@linutronix.de&gt;
Reviewed-by: Allison Randal &lt;allison@lohutok.net&gt;
Cc: linux-spdx@vger.kernel.org
Link: https://lkml.kernel.org/r/20190527070032.746973796@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 as published by
  the free software foundation either version 2 of the license or at
  your option any later version

extracted by the scancode license scanner the SPDX license identifier

  GPL-2.0-or-later

has been chosen to replace the boilerplate/reference in 3029 file(s).

Signed-off-by: Thomas Gleixner &lt;tglx@linutronix.de&gt;
Reviewed-by: Allison Randal &lt;allison@lohutok.net&gt;
Cc: linux-spdx@vger.kernel.org
Link: https://lkml.kernel.org/r/20190527070032.746973796@linutronix.de
Signed-off-by: Greg Kroah-Hartman &lt;gregkh@linuxfoundation.org&gt;
</pre>
</div>
</content>
</entry>
<entry>
<title>treewide: setup_timer() -&gt; timer_setup()</title>
<updated>2017-11-21T23:57:07+00:00</updated>
<author>
<name>Kees Cook</name>
<email>keescook@chromium.org</email>
</author>
<published>2017-10-16T21:43:17+00:00</published>
<link rel='alternate' type='text/html' href='https://git.toradex.cn/cgit/linux-toradex.git/commit/?id=e99e88a9d2b067465adaa9c111ada99a041bef9a'/>
<id>e99e88a9d2b067465adaa9c111ada99a041bef9a</id>
<content type='text'>
This converts all remaining cases of the old setup_timer() API into using
timer_setup(), where the callback argument is the structure already
holding the struct timer_list. These should have no behavioral changes,
since they just change which pointer is passed into the callback with
the same available pointers after conversion. It handles the following
examples, in addition to some other variations.

Casting from unsigned long:

    void my_callback(unsigned long data)
    {
        struct something *ptr = (struct something *)data;
    ...
    }
    ...
    setup_timer(&amp;ptr-&gt;my_timer, my_callback, ptr);

and forced object casts:

    void my_callback(struct something *ptr)
    {
    ...
    }
    ...
    setup_timer(&amp;ptr-&gt;my_timer, my_callback, (unsigned long)ptr);

become:

    void my_callback(struct timer_list *t)
    {
        struct something *ptr = from_timer(ptr, t, my_timer);
    ...
    }
    ...
    timer_setup(&amp;ptr-&gt;my_timer, my_callback, 0);

Direct function assignments:

    void my_callback(unsigned long data)
    {
        struct something *ptr = (struct something *)data;
    ...
    }
    ...
    ptr-&gt;my_timer.function = my_callback;

have a temporary cast added, along with converting the args:

    void my_callback(struct timer_list *t)
    {
        struct something *ptr = from_timer(ptr, t, my_timer);
    ...
    }
    ...
    ptr-&gt;my_timer.function = (TIMER_FUNC_TYPE)my_callback;

And finally, callbacks without a data assignment:

    void my_callback(unsigned long data)
    {
    ...
    }
    ...
    setup_timer(&amp;ptr-&gt;my_timer, my_callback, 0);

have their argument renamed to verify they're unused during conversion:

    void my_callback(struct timer_list *unused)
    {
    ...
    }
    ...
    timer_setup(&amp;ptr-&gt;my_timer, my_callback, 0);

The conversion is done with the following Coccinelle script:

spatch --very-quiet --all-includes --include-headers \
	-I ./arch/x86/include -I ./arch/x86/include/generated \
	-I ./include -I ./arch/x86/include/uapi \
	-I ./arch/x86/include/generated/uapi -I ./include/uapi \
	-I ./include/generated/uapi --include ./include/linux/kconfig.h \
	--dir . \
	--cocci-file ~/src/data/timer_setup.cocci

@fix_address_of@
expression e;
@@

 setup_timer(
-&amp;(e)
+&amp;e
 , ...)

// Update any raw setup_timer() usages that have a NULL callback, but
// would otherwise match change_timer_function_usage, since the latter
// will update all function assignments done in the face of a NULL
// function initialization in setup_timer().
@change_timer_function_usage_NULL@
expression _E;
identifier _timer;
type _cast_data;
@@

(
-setup_timer(&amp;_E-&gt;_timer, NULL, _E);
+timer_setup(&amp;_E-&gt;_timer, NULL, 0);
|
-setup_timer(&amp;_E-&gt;_timer, NULL, (_cast_data)_E);
+timer_setup(&amp;_E-&gt;_timer, NULL, 0);
|
-setup_timer(&amp;_E._timer, NULL, &amp;_E);
+timer_setup(&amp;_E._timer, NULL, 0);
|
-setup_timer(&amp;_E._timer, NULL, (_cast_data)&amp;_E);
+timer_setup(&amp;_E._timer, NULL, 0);
)

@change_timer_function_usage@
expression _E;
identifier _timer;
struct timer_list _stl;
identifier _callback;
type _cast_func, _cast_data;
@@

(
-setup_timer(&amp;_E-&gt;_timer, _callback, _E);
+timer_setup(&amp;_E-&gt;_timer, _callback, 0);
|
-setup_timer(&amp;_E-&gt;_timer, &amp;_callback, _E);
+timer_setup(&amp;_E-&gt;_timer, _callback, 0);
|
-setup_timer(&amp;_E-&gt;_timer, _callback, (_cast_data)_E);
+timer_setup(&amp;_E-&gt;_timer, _callback, 0);
|
-setup_timer(&amp;_E-&gt;_timer, &amp;_callback, (_cast_data)_E);
+timer_setup(&amp;_E-&gt;_timer, _callback, 0);
|
-setup_timer(&amp;_E-&gt;_timer, (_cast_func)_callback, _E);
+timer_setup(&amp;_E-&gt;_timer, _callback, 0);
|
-setup_timer(&amp;_E-&gt;_timer, (_cast_func)&amp;_callback, _E);
+timer_setup(&amp;_E-&gt;_timer, _callback, 0);
|
-setup_timer(&amp;_E-&gt;_timer, (_cast_func)_callback, (_cast_data)_E);
+timer_setup(&amp;_E-&gt;_timer, _callback, 0);
|
-setup_timer(&amp;_E-&gt;_timer, (_cast_func)&amp;_callback, (_cast_data)_E);
+timer_setup(&amp;_E-&gt;_timer, _callback, 0);
|
-setup_timer(&amp;_E._timer, _callback, (_cast_data)_E);
+timer_setup(&amp;_E._timer, _callback, 0);
|
-setup_timer(&amp;_E._timer, _callback, (_cast_data)&amp;_E);
+timer_setup(&amp;_E._timer, _callback, 0);
|
-setup_timer(&amp;_E._timer, &amp;_callback, (_cast_data)_E);
+timer_setup(&amp;_E._timer, _callback, 0);
|
-setup_timer(&amp;_E._timer, &amp;_callback, (_cast_data)&amp;_E);
+timer_setup(&amp;_E._timer, _callback, 0);
|
-setup_timer(&amp;_E._timer, (_cast_func)_callback, (_cast_data)_E);
+timer_setup(&amp;_E._timer, _callback, 0);
|
-setup_timer(&amp;_E._timer, (_cast_func)_callback, (_cast_data)&amp;_E);
+timer_setup(&amp;_E._timer, _callback, 0);
|
-setup_timer(&amp;_E._timer, (_cast_func)&amp;_callback, (_cast_data)_E);
+timer_setup(&amp;_E._timer, _callback, 0);
|
-setup_timer(&amp;_E._timer, (_cast_func)&amp;_callback, (_cast_data)&amp;_E);
+timer_setup(&amp;_E._timer, _callback, 0);
|
 _E-&gt;_timer@_stl.function = _callback;
|
 _E-&gt;_timer@_stl.function = &amp;_callback;
|
 _E-&gt;_timer@_stl.function = (_cast_func)_callback;
|
 _E-&gt;_timer@_stl.function = (_cast_func)&amp;_callback;
|
 _E._timer@_stl.function = _callback;
|
 _E._timer@_stl.function = &amp;_callback;
|
 _E._timer@_stl.function = (_cast_func)_callback;
|
 _E._timer@_stl.function = (_cast_func)&amp;_callback;
)

// callback(unsigned long arg)
@change_callback_handle_cast
 depends on change_timer_function_usage@
identifier change_timer_function_usage._callback;
identifier change_timer_function_usage._timer;
type _origtype;
identifier _origarg;
type _handletype;
identifier _handle;
@@

 void _callback(
-_origtype _origarg
+struct timer_list *t
 )
 {
(
	... when != _origarg
	_handletype *_handle =
-(_handletype *)_origarg;
+from_timer(_handle, t, _timer);
	... when != _origarg
|
	... when != _origarg
	_handletype *_handle =
-(void *)_origarg;
+from_timer(_handle, t, _timer);
	... when != _origarg
|
	... when != _origarg
	_handletype *_handle;
	... when != _handle
	_handle =
-(_handletype *)_origarg;
+from_timer(_handle, t, _timer);
	... when != _origarg
|
	... when != _origarg
	_handletype *_handle;
	... when != _handle
	_handle =
-(void *)_origarg;
+from_timer(_handle, t, _timer);
	... when != _origarg
)
 }

// callback(unsigned long arg) without existing variable
@change_callback_handle_cast_no_arg
 depends on change_timer_function_usage &amp;&amp;
                     !change_callback_handle_cast@
identifier change_timer_function_usage._callback;
identifier change_timer_function_usage._timer;
type _origtype;
identifier _origarg;
type _handletype;
@@

 void _callback(
-_origtype _origarg
+struct timer_list *t
 )
 {
+	_handletype *_origarg = from_timer(_origarg, t, _timer);
+
	... when != _origarg
-	(_handletype *)_origarg
+	_origarg
	... when != _origarg
 }

// Avoid already converted callbacks.
@match_callback_converted
 depends on change_timer_function_usage &amp;&amp;
            !change_callback_handle_cast &amp;&amp;
	    !change_callback_handle_cast_no_arg@
identifier change_timer_function_usage._callback;
identifier t;
@@

 void _callback(struct timer_list *t)
 { ... }

// callback(struct something *handle)
@change_callback_handle_arg
 depends on change_timer_function_usage &amp;&amp;
	    !match_callback_converted &amp;&amp;
            !change_callback_handle_cast &amp;&amp;
            !change_callback_handle_cast_no_arg@
identifier change_timer_function_usage._callback;
identifier change_timer_function_usage._timer;
type _handletype;
identifier _handle;
@@

 void _callback(
-_handletype *_handle
+struct timer_list *t
 )
 {
+	_handletype *_handle = from_timer(_handle, t, _timer);
	...
 }

// If change_callback_handle_arg ran on an empty function, remove
// the added handler.
@unchange_callback_handle_arg
 depends on change_timer_function_usage &amp;&amp;
	    change_callback_handle_arg@
identifier change_timer_function_usage._callback;
identifier change_timer_function_usage._timer;
type _handletype;
identifier _handle;
identifier t;
@@

 void _callback(struct timer_list *t)
 {
-	_handletype *_handle = from_timer(_handle, t, _timer);
 }

// We only want to refactor the setup_timer() data argument if we've found
// the matching callback. This undoes changes in change_timer_function_usage.
@unchange_timer_function_usage
 depends on change_timer_function_usage &amp;&amp;
            !change_callback_handle_cast &amp;&amp;
            !change_callback_handle_cast_no_arg &amp;&amp;
	    !change_callback_handle_arg@
expression change_timer_function_usage._E;
identifier change_timer_function_usage._timer;
identifier change_timer_function_usage._callback;
type change_timer_function_usage._cast_data;
@@

(
-timer_setup(&amp;_E-&gt;_timer, _callback, 0);
+setup_timer(&amp;_E-&gt;_timer, _callback, (_cast_data)_E);
|
-timer_setup(&amp;_E._timer, _callback, 0);
+setup_timer(&amp;_E._timer, _callback, (_cast_data)&amp;_E);
)

// If we fixed a callback from a .function assignment, fix the
// assignment cast now.
@change_timer_function_assignment
 depends on change_timer_function_usage &amp;&amp;
            (change_callback_handle_cast ||
             change_callback_handle_cast_no_arg ||
             change_callback_handle_arg)@
expression change_timer_function_usage._E;
identifier change_timer_function_usage._timer;
identifier change_timer_function_usage._callback;
type _cast_func;
typedef TIMER_FUNC_TYPE;
@@

(
 _E-&gt;_timer.function =
-_callback
+(TIMER_FUNC_TYPE)_callback
 ;
|
 _E-&gt;_timer.function =
-&amp;_callback
+(TIMER_FUNC_TYPE)_callback
 ;
|
 _E-&gt;_timer.function =
-(_cast_func)_callback;
+(TIMER_FUNC_TYPE)_callback
 ;
|
 _E-&gt;_timer.function =
-(_cast_func)&amp;_callback
+(TIMER_FUNC_TYPE)_callback
 ;
|
 _E._timer.function =
-_callback
+(TIMER_FUNC_TYPE)_callback
 ;
|
 _E._timer.function =
-&amp;_callback;
+(TIMER_FUNC_TYPE)_callback
 ;
|
 _E._timer.function =
-(_cast_func)_callback
+(TIMER_FUNC_TYPE)_callback
 ;
|
 _E._timer.function =
-(_cast_func)&amp;_callback
+(TIMER_FUNC_TYPE)_callback
 ;
)

// Sometimes timer functions are called directly. Replace matched args.
@change_timer_function_calls
 depends on change_timer_function_usage &amp;&amp;
            (change_callback_handle_cast ||
             change_callback_handle_cast_no_arg ||
             change_callback_handle_arg)@
expression _E;
identifier change_timer_function_usage._timer;
identifier change_timer_function_usage._callback;
type _cast_data;
@@

 _callback(
(
-(_cast_data)_E
+&amp;_E-&gt;_timer
|
-(_cast_data)&amp;_E
+&amp;_E._timer
|
-_E
+&amp;_E-&gt;_timer
)
 )

// If a timer has been configured without a data argument, it can be
// converted without regard to the callback argument, since it is unused.
@match_timer_function_unused_data@
expression _E;
identifier _timer;
identifier _callback;
@@

(
-setup_timer(&amp;_E-&gt;_timer, _callback, 0);
+timer_setup(&amp;_E-&gt;_timer, _callback, 0);
|
-setup_timer(&amp;_E-&gt;_timer, _callback, 0L);
+timer_setup(&amp;_E-&gt;_timer, _callback, 0);
|
-setup_timer(&amp;_E-&gt;_timer, _callback, 0UL);
+timer_setup(&amp;_E-&gt;_timer, _callback, 0);
|
-setup_timer(&amp;_E._timer, _callback, 0);
+timer_setup(&amp;_E._timer, _callback, 0);
|
-setup_timer(&amp;_E._timer, _callback, 0L);
+timer_setup(&amp;_E._timer, _callback, 0);
|
-setup_timer(&amp;_E._timer, _callback, 0UL);
+timer_setup(&amp;_E._timer, _callback, 0);
|
-setup_timer(&amp;_timer, _callback, 0);
+timer_setup(&amp;_timer, _callback, 0);
|
-setup_timer(&amp;_timer, _callback, 0L);
+timer_setup(&amp;_timer, _callback, 0);
|
-setup_timer(&amp;_timer, _callback, 0UL);
+timer_setup(&amp;_timer, _callback, 0);
|
-setup_timer(_timer, _callback, 0);
+timer_setup(_timer, _callback, 0);
|
-setup_timer(_timer, _callback, 0L);
+timer_setup(_timer, _callback, 0);
|
-setup_timer(_timer, _callback, 0UL);
+timer_setup(_timer, _callback, 0);
)

@change_callback_unused_data
 depends on match_timer_function_unused_data@
identifier match_timer_function_unused_data._callback;
type _origtype;
identifier _origarg;
@@

 void _callback(
-_origtype _origarg
+struct timer_list *unused
 )
 {
	... when != _origarg
 }

Signed-off-by: Kees Cook &lt;keescook@chromium.org&gt;
</content>
<content type='xhtml'>
<div xmlns='http://www.w3.org/1999/xhtml'>
<pre>
This converts all remaining cases of the old setup_timer() API into using
timer_setup(), where the callback argument is the structure already
holding the struct timer_list. These should have no behavioral changes,
since they just change which pointer is passed into the callback with
the same available pointers after conversion. It handles the following
examples, in addition to some other variations.

Casting from unsigned long:

    void my_callback(unsigned long data)
    {
        struct something *ptr = (struct something *)data;
    ...
    }
    ...
    setup_timer(&amp;ptr-&gt;my_timer, my_callback, ptr);

and forced object casts:

    void my_callback(struct something *ptr)
    {
    ...
    }
    ...
    setup_timer(&amp;ptr-&gt;my_timer, my_callback, (unsigned long)ptr);

become:

    void my_callback(struct timer_list *t)
    {
        struct something *ptr = from_timer(ptr, t, my_timer);
    ...
    }
    ...
    timer_setup(&amp;ptr-&gt;my_timer, my_callback, 0);

Direct function assignments:

    void my_callback(unsigned long data)
    {
        struct something *ptr = (struct something *)data;
    ...
    }
    ...
    ptr-&gt;my_timer.function = my_callback;

have a temporary cast added, along with converting the args:

    void my_callback(struct timer_list *t)
    {
        struct something *ptr = from_timer(ptr, t, my_timer);
    ...
    }
    ...
    ptr-&gt;my_timer.function = (TIMER_FUNC_TYPE)my_callback;

And finally, callbacks without a data assignment:

    void my_callback(unsigned long data)
    {
    ...
    }
    ...
    setup_timer(&amp;ptr-&gt;my_timer, my_callback, 0);

have their argument renamed to verify they're unused during conversion:

    void my_callback(struct timer_list *unused)
    {
    ...
    }
    ...
    timer_setup(&amp;ptr-&gt;my_timer, my_callback, 0);

The conversion is done with the following Coccinelle script:

spatch --very-quiet --all-includes --include-headers \
	-I ./arch/x86/include -I ./arch/x86/include/generated \
	-I ./include -I ./arch/x86/include/uapi \
	-I ./arch/x86/include/generated/uapi -I ./include/uapi \
	-I ./include/generated/uapi --include ./include/linux/kconfig.h \
	--dir . \
	--cocci-file ~/src/data/timer_setup.cocci

@fix_address_of@
expression e;
@@

 setup_timer(
-&amp;(e)
+&amp;e
 , ...)

// Update any raw setup_timer() usages that have a NULL callback, but
// would otherwise match change_timer_function_usage, since the latter
// will update all function assignments done in the face of a NULL
// function initialization in setup_timer().
@change_timer_function_usage_NULL@
expression _E;
identifier _timer;
type _cast_data;
@@

(
-setup_timer(&amp;_E-&gt;_timer, NULL, _E);
+timer_setup(&amp;_E-&gt;_timer, NULL, 0);
|
-setup_timer(&amp;_E-&gt;_timer, NULL, (_cast_data)_E);
+timer_setup(&amp;_E-&gt;_timer, NULL, 0);
|
-setup_timer(&amp;_E._timer, NULL, &amp;_E);
+timer_setup(&amp;_E._timer, NULL, 0);
|
-setup_timer(&amp;_E._timer, NULL, (_cast_data)&amp;_E);
+timer_setup(&amp;_E._timer, NULL, 0);
)

@change_timer_function_usage@
expression _E;
identifier _timer;
struct timer_list _stl;
identifier _callback;
type _cast_func, _cast_data;
@@

(
-setup_timer(&amp;_E-&gt;_timer, _callback, _E);
+timer_setup(&amp;_E-&gt;_timer, _callback, 0);
|
-setup_timer(&amp;_E-&gt;_timer, &amp;_callback, _E);
+timer_setup(&amp;_E-&gt;_timer, _callback, 0);
|
-setup_timer(&amp;_E-&gt;_timer, _callback, (_cast_data)_E);
+timer_setup(&amp;_E-&gt;_timer, _callback, 0);
|
-setup_timer(&amp;_E-&gt;_timer, &amp;_callback, (_cast_data)_E);
+timer_setup(&amp;_E-&gt;_timer, _callback, 0);
|
-setup_timer(&amp;_E-&gt;_timer, (_cast_func)_callback, _E);
+timer_setup(&amp;_E-&gt;_timer, _callback, 0);
|
-setup_timer(&amp;_E-&gt;_timer, (_cast_func)&amp;_callback, _E);
+timer_setup(&amp;_E-&gt;_timer, _callback, 0);
|
-setup_timer(&amp;_E-&gt;_timer, (_cast_func)_callback, (_cast_data)_E);
+timer_setup(&amp;_E-&gt;_timer, _callback, 0);
|
-setup_timer(&amp;_E-&gt;_timer, (_cast_func)&amp;_callback, (_cast_data)_E);
+timer_setup(&amp;_E-&gt;_timer, _callback, 0);
|
-setup_timer(&amp;_E._timer, _callback, (_cast_data)_E);
+timer_setup(&amp;_E._timer, _callback, 0);
|
-setup_timer(&amp;_E._timer, _callback, (_cast_data)&amp;_E);
+timer_setup(&amp;_E._timer, _callback, 0);
|
-setup_timer(&amp;_E._timer, &amp;_callback, (_cast_data)_E);
+timer_setup(&amp;_E._timer, _callback, 0);
|
-setup_timer(&amp;_E._timer, &amp;_callback, (_cast_data)&amp;_E);
+timer_setup(&amp;_E._timer, _callback, 0);
|
-setup_timer(&amp;_E._timer, (_cast_func)_callback, (_cast_data)_E);
+timer_setup(&amp;_E._timer, _callback, 0);
|
-setup_timer(&amp;_E._timer, (_cast_func)_callback, (_cast_data)&amp;_E);
+timer_setup(&amp;_E._timer, _callback, 0);
|
-setup_timer(&amp;_E._timer, (_cast_func)&amp;_callback, (_cast_data)_E);
+timer_setup(&amp;_E._timer, _callback, 0);
|
-setup_timer(&amp;_E._timer, (_cast_func)&amp;_callback, (_cast_data)&amp;_E);
+timer_setup(&amp;_E._timer, _callback, 0);
|
 _E-&gt;_timer@_stl.function = _callback;
|
 _E-&gt;_timer@_stl.function = &amp;_callback;
|
 _E-&gt;_timer@_stl.function = (_cast_func)_callback;
|
 _E-&gt;_timer@_stl.function = (_cast_func)&amp;_callback;
|
 _E._timer@_stl.function = _callback;
|
 _E._timer@_stl.function = &amp;_callback;
|
 _E._timer@_stl.function = (_cast_func)_callback;
|
 _E._timer@_stl.function = (_cast_func)&amp;_callback;
)

// callback(unsigned long arg)
@change_callback_handle_cast
 depends on change_timer_function_usage@
identifier change_timer_function_usage._callback;
identifier change_timer_function_usage._timer;
type _origtype;
identifier _origarg;
type _handletype;
identifier _handle;
@@

 void _callback(
-_origtype _origarg
+struct timer_list *t
 )
 {
(
	... when != _origarg
	_handletype *_handle =
-(_handletype *)_origarg;
+from_timer(_handle, t, _timer);
	... when != _origarg
|
	... when != _origarg
	_handletype *_handle =
-(void *)_origarg;
+from_timer(_handle, t, _timer);
	... when != _origarg
|
	... when != _origarg
	_handletype *_handle;
	... when != _handle
	_handle =
-(_handletype *)_origarg;
+from_timer(_handle, t, _timer);
	... when != _origarg
|
	... when != _origarg
	_handletype *_handle;
	... when != _handle
	_handle =
-(void *)_origarg;
+from_timer(_handle, t, _timer);
	... when != _origarg
)
 }

// callback(unsigned long arg) without existing variable
@change_callback_handle_cast_no_arg
 depends on change_timer_function_usage &amp;&amp;
                     !change_callback_handle_cast@
identifier change_timer_function_usage._callback;
identifier change_timer_function_usage._timer;
type _origtype;
identifier _origarg;
type _handletype;
@@

 void _callback(
-_origtype _origarg
+struct timer_list *t
 )
 {
+	_handletype *_origarg = from_timer(_origarg, t, _timer);
+
	... when != _origarg
-	(_handletype *)_origarg
+	_origarg
	... when != _origarg
 }

// Avoid already converted callbacks.
@match_callback_converted
 depends on change_timer_function_usage &amp;&amp;
            !change_callback_handle_cast &amp;&amp;
	    !change_callback_handle_cast_no_arg@
identifier change_timer_function_usage._callback;
identifier t;
@@

 void _callback(struct timer_list *t)
 { ... }

// callback(struct something *handle)
@change_callback_handle_arg
 depends on change_timer_function_usage &amp;&amp;
	    !match_callback_converted &amp;&amp;
            !change_callback_handle_cast &amp;&amp;
            !change_callback_handle_cast_no_arg@
identifier change_timer_function_usage._callback;
identifier change_timer_function_usage._timer;
type _handletype;
identifier _handle;
@@

 void _callback(
-_handletype *_handle
+struct timer_list *t
 )
 {
+	_handletype *_handle = from_timer(_handle, t, _timer);
	...
 }

// If change_callback_handle_arg ran on an empty function, remove
// the added handler.
@unchange_callback_handle_arg
 depends on change_timer_function_usage &amp;&amp;
	    change_callback_handle_arg@
identifier change_timer_function_usage._callback;
identifier change_timer_function_usage._timer;
type _handletype;
identifier _handle;
identifier t;
@@

 void _callback(struct timer_list *t)
 {
-	_handletype *_handle = from_timer(_handle, t, _timer);
 }

// We only want to refactor the setup_timer() data argument if we've found
// the matching callback. This undoes changes in change_timer_function_usage.
@unchange_timer_function_usage
 depends on change_timer_function_usage &amp;&amp;
            !change_callback_handle_cast &amp;&amp;
            !change_callback_handle_cast_no_arg &amp;&amp;
	    !change_callback_handle_arg@
expression change_timer_function_usage._E;
identifier change_timer_function_usage._timer;
identifier change_timer_function_usage._callback;
type change_timer_function_usage._cast_data;
@@

(
-timer_setup(&amp;_E-&gt;_timer, _callback, 0);
+setup_timer(&amp;_E-&gt;_timer, _callback, (_cast_data)_E);
|
-timer_setup(&amp;_E._timer, _callback, 0);
+setup_timer(&amp;_E._timer, _callback, (_cast_data)&amp;_E);
)

// If we fixed a callback from a .function assignment, fix the
// assignment cast now.
@change_timer_function_assignment
 depends on change_timer_function_usage &amp;&amp;
            (change_callback_handle_cast ||
             change_callback_handle_cast_no_arg ||
             change_callback_handle_arg)@
expression change_timer_function_usage._E;
identifier change_timer_function_usage._timer;
identifier change_timer_function_usage._callback;
type _cast_func;
typedef TIMER_FUNC_TYPE;
@@

(
 _E-&gt;_timer.function =
-_callback
+(TIMER_FUNC_TYPE)_callback
 ;
|
 _E-&gt;_timer.function =
-&amp;_callback
+(TIMER_FUNC_TYPE)_callback
 ;
|
 _E-&gt;_timer.function =
-(_cast_func)_callback;
+(TIMER_FUNC_TYPE)_callback
 ;
|
 _E-&gt;_timer.function =
-(_cast_func)&amp;_callback
+(TIMER_FUNC_TYPE)_callback
 ;
|
 _E._timer.function =
-_callback
+(TIMER_FUNC_TYPE)_callback
 ;
|
 _E._timer.function =
-&amp;_callback;
+(TIMER_FUNC_TYPE)_callback
 ;
|
 _E._timer.function =
-(_cast_func)_callback
+(TIMER_FUNC_TYPE)_callback
 ;
|
 _E._timer.function =
-(_cast_func)&amp;_callback
+(TIMER_FUNC_TYPE)_callback
 ;
)

// Sometimes timer functions are called directly. Replace matched args.
@change_timer_function_calls
 depends on change_timer_function_usage &amp;&amp;
            (change_callback_handle_cast ||
             change_callback_handle_cast_no_arg ||
             change_callback_handle_arg)@
expression _E;
identifier change_timer_function_usage._timer;
identifier change_timer_function_usage._callback;
type _cast_data;
@@

 _callback(
(
-(_cast_data)_E
+&amp;_E-&gt;_timer
|
-(_cast_data)&amp;_E
+&amp;_E._timer
|
-_E
+&amp;_E-&gt;_timer
)
 )

// If a timer has been configured without a data argument, it can be
// converted without regard to the callback argument, since it is unused.
@match_timer_function_unused_data@
expression _E;
identifier _timer;
identifier _callback;
@@

(
-setup_timer(&amp;_E-&gt;_timer, _callback, 0);
+timer_setup(&amp;_E-&gt;_timer, _callback, 0);
|
-setup_timer(&amp;_E-&gt;_timer, _callback, 0L);
+timer_setup(&amp;_E-&gt;_timer, _callback, 0);
|
-setup_timer(&amp;_E-&gt;_timer, _callback, 0UL);
+timer_setup(&amp;_E-&gt;_timer, _callback, 0);
|
-setup_timer(&amp;_E._timer, _callback, 0);
+timer_setup(&amp;_E._timer, _callback, 0);
|
-setup_timer(&amp;_E._timer, _callback, 0L);
+timer_setup(&amp;_E._timer, _callback, 0);
|
-setup_timer(&amp;_E._timer, _callback, 0UL);
+timer_setup(&amp;_E._timer, _callback, 0);
|
-setup_timer(&amp;_timer, _callback, 0);
+timer_setup(&amp;_timer, _callback, 0);
|
-setup_timer(&amp;_timer, _callback, 0L);
+timer_setup(&amp;_timer, _callback, 0);
|
-setup_timer(&amp;_timer, _callback, 0UL);
+timer_setup(&amp;_timer, _callback, 0);
|
-setup_timer(_timer, _callback, 0);
+timer_setup(_timer, _callback, 0);
|
-setup_timer(_timer, _callback, 0L);
+timer_setup(_timer, _callback, 0);
|
-setup_timer(_timer, _callback, 0UL);
+timer_setup(_timer, _callback, 0);
)

@change_callback_unused_data
 depends on match_timer_function_unused_data@
identifier match_timer_function_unused_data._callback;
type _origtype;
identifier _origarg;
@@

 void _callback(
-_origtype _origarg
+struct timer_list *unused
 )
 {
	... when != _origarg
 }

Signed-off-by: Kees Cook &lt;keescook@chromium.org&gt;
</pre>
</div>
</content>
</entry>
<entry>
<title>HID: prodikeys: constify snd_rawmidi_ops structures</title>
<updated>2017-08-15T09:02:45+00:00</updated>
<author>
<name>Julia Lawall</name>
<email>Julia.Lawall@lip6.fr</email>
</author>
<published>2017-08-15T08:09:53+00:00</published>
<link rel='alternate' type='text/html' href='https://git.toradex.cn/cgit/linux-toradex.git/commit/?id=0acb310c3273d55ad19c9a5f48b73224ce6e2dc0'/>
<id>0acb310c3273d55ad19c9a5f48b73224ce6e2dc0</id>
<content type='text'>
This snd_rawmidi_ops structure is only passed as the third
argument of snd_rawmidi_set_ops.  This argument is const, so the
snd_rawmidi_ops structure can be const too.

Done with the help of Coccinelle.

Signed-off-by: Julia Lawall &lt;Julia.Lawall@lip6.fr&gt;
Signed-off-by: Jiri Kosina &lt;jkosina@suse.cz&gt;
</content>
<content type='xhtml'>
<div xmlns='http://www.w3.org/1999/xhtml'>
<pre>
This snd_rawmidi_ops structure is only passed as the third
argument of snd_rawmidi_set_ops.  This argument is const, so the
snd_rawmidi_ops structure can be const too.

Done with the help of Coccinelle.

Signed-off-by: Julia Lawall &lt;Julia.Lawall@lip6.fr&gt;
Signed-off-by: Jiri Kosina &lt;jkosina@suse.cz&gt;
</pre>
</div>
</content>
</entry>
</feed>
