kernel/linux.git/drivers/input/input-mt.c, branch v7.0-rc7

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

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

This is the exact same thing as the 'alloc_obj()' version, only much smaller because there are a lot fewer users of the *alloc_flex() interface. As with alloc_obj() version, this was done entirely with mindless brute force, using the same script, except using 'flex' in the pattern rather than 'objs*'. Signed-off-by: Linus Torvalds

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

Input: MT - add INPUT_MT_TOTAL_FORCE flags

2025-09-15T12:32:55+00:00

Add a flag to generate ABS_PRESSURE as sum of ABS_MT_PRESSURE across all slots. This flag should be set if one knows a device reports true force and would like to report total force to the userspace. Signed-off-by: Angela Czubak Co-developed-by: Jonathan Denose Signed-off-by: Jonathan Denose Acked-by: Dmitry Torokhov Signed-off-by: Benjamin Tissoires

Input: mt - make use of __free() cleanup facility

2024-12-24T06:53:57+00:00

Annotate allocated memory with __free(kfree) to simplify the code and make sure memory is released appropriately. Link: https://lore.kernel.org/r/20241107071538.195340-7-dmitry.torokhov@gmail.com Signed-off-by: Dmitry Torokhov

Input: mt - convert locking to guard notation

2024-12-24T06:53:57+00:00

Use guard() notation instead of explicitly acquiring and releasing spinlocks to simplify the code and ensure that all locks are released. Link: https://lore.kernel.org/r/20241107071538.195340-6-dmitry.torokhov@gmail.com Signed-off-by: Dmitry Torokhov

Input: MT - limit max slots

2024-07-29T17:44:48+00:00

syzbot is reporting too large allocation at input_mt_init_slots(), for num_slots is supplied from userspace using ioctl(UI_DEV_CREATE). Since nobody knows possible max slots, this patch chose 1024. Reported-by: syzbot Closes: https://syzkaller.appspot.com/bug?extid=0122fa359a69694395d5 Suggested-by: Dmitry Torokhov Signed-off-by: Tetsuo Handa Signed-off-by: Linus Torvalds

Input: deactivate MT slots when inhibiting or suspending devices

2022-07-20T18:35:13+00:00

When inhibiting or suspending a device we are sending release events for all currently held keys and buttons, however we retain active MT slot state, which causes issues with gesture recognition when we resume or uninhibit. Let's fix it by introducing, in addition to input_dev_release_keys(), nput_mt_release_slots() that will deactivate all currently active slots. Signed-off-by: Angela Czubak Link: https://lore.kernel.org/r/20220718151715.1052842-3-acz@semihalf.com Signed-off-by: Dmitry Torokhov

Input: MT - avoid comma separated statements

2020-08-25T17:26:05+00:00

Use semicolons and braces. Signed-off-by: Joe Perches Link: https://lore.kernel.org/r/02cb394f8c305473c1a783a5ea8425de79fe0ec1.1598331149.git.joe@perches.com Signed-off-by: Dmitry Torokhov

Input: mt - cleanup open-coded __set_bit()

2020-07-16T00:31:46+00:00

Replace open-coded __set_bit() with the function. Signed-off-by: Michał Mirosław Link: https://lore.kernel.org/r/cf1dda3a372896cb01033ce084a7deb9620df7aa.1594599118.git.mirq-linux@rere.qmqm.pl Signed-off-by: Dmitry Torokhov