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| author | Rob Herring (Arm) <robh@kernel.org> | 2026-08-31 14:43:51 -0500 |
|---|---|---|
| committer | Dmitry Torokhov <dmitry.torokhov@gmail.com> | 2026-09-13 18:17:31 -0700 |
| commit | 55fc280e951ab2b39f3dcb640edc1b1eebc6d173 (patch) | |
| tree | f0b5f37b42fc13b9908a31b657c646b024231cdd /drivers/input/input-compat.h | |
| download | linux-stable-55fc280e951ab2b39f3dcb640edc1b1eebc6d173.tar.gz linux-stable-55fc280e951ab2b39f3dcb640edc1b1eebc6d173.zip | |
Input: tsc2007 - read "ti,poll-period" as u32grafted
The "ti,poll-period" property is documented as a normal uint32 cell.
The driver used a u64 helper, which makes the helper type disagree with
the schema even though the stored value is still small.
Read "ti,poll-period" with the u32 helper matching the documented DT
cell size.
Assisted-by: Codex:gpt-5-5
Signed-off-by: Rob Herring (Arm) <robh@kernel.org>
Link: https://patch.msgid.link/20260831194352.1185860-1-robh@kernel.org
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Diffstat (limited to 'drivers/input/input-compat.h')
| -rw-r--r-- | drivers/input/input-compat.h | 81 |
1 files changed, 81 insertions, 0 deletions
diff --git a/drivers/input/input-compat.h b/drivers/input/input-compat.h new file mode 100644 index 000000000..99c87ceb9 --- /dev/null +++ b/drivers/input/input-compat.h @@ -0,0 +1,81 @@ +/* SPDX-License-Identifier: GPL-2.0-only */ +#ifndef _INPUT_COMPAT_H +#define _INPUT_COMPAT_H + +/* + * 32bit compatibility wrappers for the input subsystem. + * + * Very heavily based on evdev.c - Copyright (c) 1999-2002 Vojtech Pavlik + */ + +#include <linux/compiler.h> +#include <linux/compat.h> +#include <linux/input.h> + +#ifdef CONFIG_COMPAT + +struct input_event_compat { + compat_ulong_t sec; + compat_ulong_t usec; + __u16 type; + __u16 code; + __s32 value; +}; + +struct ff_periodic_effect_compat { + __u16 waveform; + __u16 period; + __s16 magnitude; + __s16 offset; + __u16 phase; + + struct ff_envelope envelope; + + __u32 custom_len; + compat_uptr_t custom_data; +}; + +struct ff_effect_compat { + __u16 type; + __s16 id; + __u16 direction; + struct ff_trigger trigger; + struct ff_replay replay; + + union { + struct ff_constant_effect constant; + struct ff_ramp_effect ramp; + struct ff_periodic_effect_compat periodic; + struct ff_condition_effect condition[2]; /* One for each axis */ + struct ff_rumble_effect rumble; + } u; +}; + +static inline size_t input_event_size(void) +{ + return (in_compat_syscall() && !COMPAT_USE_64BIT_TIME) ? + sizeof(struct input_event_compat) : sizeof(struct input_event); +} + +#else + +static inline size_t input_event_size(void) +{ + return sizeof(struct input_event); +} + +#endif /* CONFIG_COMPAT */ + +int input_event_from_user(const char __user *buffer, + struct input_event *event); + +int input_event_to_user(char __user *buffer, + const struct input_event *event); + +int input_ff_effect_from_user(const char __user *buffer, size_t size, + struct ff_effect *effect); + +int input_bits_to_string(char *buf, int buf_size, unsigned long bits, + bool skip_empty); + +#endif /* _INPUT_COMPAT_H */ |
