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timer: Prepare to change all DEFINE_TIMER() callbacks 

Before we can globally change the function prototype of all timer callbacks,
we have to change those set up by DEFINE_TIMER(). Prepare for this by
casting the callbacks until the prototype changes globally.

Cc: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: Kees Cook <keescook@chromium.org>
This commit is contained in:
Kees Cook 2017-10-09 21:52:09 -07:00
parent 8ef81c6548
commit 3653bc95bc
1 changed files with 4 additions and 4 deletions
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8
include/linux/timer.h
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@ -63,6 +63,9 @@ struct timer_list {
#define TIMER_TRACE_FLAGMASK (TIMER_MIGRATING | TIMER_DEFERRABLE | TIMER_PINNED | TIMER_IRQSAFE)
#define TIMER_DATA_TYPE unsigned long
#define TIMER_FUNC_TYPE void (*)(TIMER_DATA_TYPE)
#define __TIMER_INITIALIZER(_function, _data, _flags) { \
.entry = { .next = TIMER_ENTRY_STATIC }, \
.function = (_function), \
@ -74,7 +77,7 @@ struct timer_list {
#define DEFINE_TIMER(_name, _function) \
struct timer_list _name = \
__TIMER_INITIALIZER(_function, 0, 0)
__TIMER_INITIALIZER((TIMER_FUNC_TYPE)_function, 0, 0)
void init_timer_key(struct timer_list *timer, unsigned int flags,
const char *name, struct lock_class_key *key);
@ -147,9 +150,6 @@ static inline void init_timer_on_stack_key(struct timer_list *timer,
#define setup_pinned_deferrable_timer_on_stack(timer, fn, data) \
__setup_timer_on_stack((timer), (fn), (data), TIMER_DEFERRABLE | TIMER_PINNED)
#define TIMER_DATA_TYPE unsigned long
#define TIMER_FUNC_TYPE void (*)(TIMER_DATA_TYPE)
#ifndef CONFIG_LOCKDEP
static inline void timer_setup(struct timer_list *timer,
void (*callback)(struct timer_list *),