kernel/linux.git/drivers/hid/hid-dr.c, branch v7.0.10

Convert 'alloc_obj' family to use the new default GFP_KERNEL argument

2026-02-22T01:09:51+00:00

This was done entirely with mindless brute force, using git grep -l '\

treewide: Replace kmalloc with kmalloc_obj for non-scalar types

2026-02-21T09:02:28+00:00

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

HID: dr: constify fixed up report descriptor

2024-09-05T14:20:56+00:00

Now that the HID core can handle const report descriptors, constify them where possible. Signed-off-by: Thomas Weißschuh Link: https://patch.msgid.link/20240828-hid-const-fixup-2-v1-2-663b9210eb69@weissschuh.net Signed-off-by: Benjamin Tissoires

HID: change return type of report_fixup() to const

2024-08-27T14:29:55+00:00

By allowing the drivers to return a "const *" they can constify their static report arrays. This makes it clear to driver authors that the HID core will not modify those reports and they can be reused for multiple devices. Furthermore security is slightly improved as those reports are protected against accidental or malicious modifications. [bentiss: fixup hid-cougar.c and hid-multitouch.c for latest version of the master branch] Signed-off-by: Thomas Weißschuh Link: https://patch.msgid.link/20240803-hid-const-fixup-v2-6-f53d7a7b29d8@weissschuh.net Signed-off-by: Benjamin Tissoires

HID: add missing MODULE_DESCRIPTION() macros

2024-06-06T08:52:48+00:00

make allmodconfig && 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 Link: https://lore.kernel.org/r/20240604-md-hid-misc-v1-1-4f9560796f3c@quicinc.com Signed-off-by: Benjamin Tissoires

HID: Fix assumption that devices have inputs

2019-10-03T19:36:40+00:00

The syzbot fuzzer found a slab-out-of-bounds write bug in the hid-gaff driver. The problem is caused by the driver's assumption that the device must have an input report. While this will be true for all normal HID input devices, a suitably malicious device can violate the assumption. The same assumption is present in over a dozen other HID drivers. This patch fixes them by checking that the list of hid_inputs for the hid_device is nonempty before allowing it to be used. Reported-and-tested-by: syzbot+403741a091bf41d4ae79@syzkaller.appspotmail.com Signed-off-by: Alan Stern CC: Signed-off-by: Benjamin Tissoires

treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 156

2019-05-30T18:26:35+00:00

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 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 you should have received a copy of the gnu general public license along with this program if not write to the free software foundation inc 59 temple place suite 330 boston ma 02111 1307 usa extracted by the scancode license scanner the SPDX license identifier GPL-2.0-or-later has been chosen to replace the boilerplate/reference in 1334 file(s). Signed-off-by: Thomas Gleixner Reviewed-by: Allison Randal Reviewed-by: Richard Fontana Cc: linux-spdx@vger.kernel.org Link: https://lkml.kernel.org/r/20190527070033.113240726@linutronix.de Signed-off-by: Greg Kroah-Hartman

Revert "HID: dragonrise: fix HID Descriptor for 0x0006 PID"

2016-10-10T08:52:01+00:00

This reverts commit 18339f59c3a6 ("HID: dragonrise: fix HID...") because it breaks certain dragonrise 0079:0006 gamepads. While it may fix a breakage caused by commit 79346d620e9d ("HID: input: force generic axis to be mapped to their user space axis"), it is probable that the manufacturer released different hardware with the same PID so this fix works for only a subset and breaks the other gamepads sharing the PID. What is needed is another more generic solution which fixes 79346d620e9d ("HID: input: force generic axis ...") breakage for this controller: we need to add an exception for this driver to make it keep the old behaviour previous to the initial breakage (this is done in patch 2 of this series). Signed-off-by: Ioan-Adrian Ratiu Reviewed-by: Benjamin Tissoires Signed-off-by: Jiri Kosina

HID: hid-dr: add input mapping for axis selection

2016-10-10T08:52:00+00:00

Commit 79346d620e9d ("HID: input: force generic axis to be mapped to their user space axis") made mapping generic axes to their userspace equivalents mandatory and some lower end gamepads which were depending on the previous behaviour suffered severe regressions because they were reusing axes and expecting hid-input to multiplex their map to the respective userspace axis by always searching for and using the next available axis. One solution is to add a hid quirk for this type of "previous" behaviour in hid-input to bypass the new axes policy in favour of the old one, but since only one hardware vendor seems to be affected negatively we're better off making and exception and mapping in the driver for now; if more vendors or drivers turn out to experience the problem we should reconsider the quirk solution. Signed-off-by: Ioan-Adrian Ratiu Reviewed-by: Benjamin Tissoires Signed-off-by: Jiri Kosina

HID: dragonrise: fix a typo in descriptors comments s/Joystik/Joystick/

2016-01-29T16:12:31+00:00

Signed-off-by: Antonio Ospite Signed-off-by: Jiri Kosina