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| author | Ahmad Fatoum <a.fatoum@pengutronix.de> | 2020-06-02 10:54:04 +0200 |
|---|---|---|
| committer | Sascha Hauer <s.hauer@pengutronix.de> | 2020-06-03 10:03:33 +0200 |
| commit | 606dff6ef4190ed1833aa9569ce7464968d46820 (patch) | |
| tree | f673d47854ea649e6ab251383a6ece3fdac42ab1 /include | |
| parent | 386db316df56ea65db89335d6523dd4719933586 (diff) | |
| download | barebox-606dff6ef4190ed1833aa9569ce7464968d46820.tar.gz barebox-606dff6ef4190ed1833aa9569ce7464968d46820.tar.xz | |
include: <asm-generic/atomic.h>: remove stub IRQ save/restore
For an architecture to use <asm-generic/atomic.h>, it must define
local_irq_save() and local_irq_restore(). Instead of having every
platform define duplicate their stub definition, just drop them
altogether, so <asm-generic/atomic.h> can be used freestanding.
Signed-off-by: Ahmad Fatoum <a.fatoum@pengutronix.de>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
Diffstat (limited to 'include')
| -rw-r--r-- | include/asm-generic/atomic.h | 26 |
1 files changed, 0 insertions, 26 deletions
diff --git a/include/asm-generic/atomic.h b/include/asm-generic/atomic.h index 6357b66a53..449cecaabc 100644 --- a/include/asm-generic/atomic.h +++ b/include/asm-generic/atomic.h @@ -21,73 +21,47 @@ typedef struct { volatile int counter; } atomic_t; static inline void atomic_add(int i, volatile atomic_t *v) { - unsigned long flags = 0; - - local_irq_save(flags); v->counter += i; - local_irq_restore(flags); } static inline void atomic_sub(int i, volatile atomic_t *v) { - unsigned long flags = 0; - - local_irq_save(flags); v->counter -= i; - local_irq_restore(flags); } static inline void atomic_inc(volatile atomic_t *v) { - unsigned long flags = 0; - - local_irq_save(flags); v->counter += 1; - local_irq_restore(flags); } static inline void atomic_dec(volatile atomic_t *v) { - unsigned long flags = 0; - - local_irq_save(flags); v->counter -= 1; - local_irq_restore(flags); } static inline int atomic_dec_and_test(volatile atomic_t *v) { - unsigned long flags = 0; int val; - local_irq_save(flags); val = v->counter; v->counter = val -= 1; - local_irq_restore(flags); return val == 0; } static inline int atomic_add_negative(int i, volatile atomic_t *v) { - unsigned long flags = 0; int val; - local_irq_save(flags); val = v->counter; v->counter = val += i; - local_irq_restore(flags); return val < 0; } static inline void atomic_clear_mask(unsigned long mask, unsigned long *addr) { - unsigned long flags = 0; - - local_irq_save(flags); *addr &= ~mask; - local_irq_restore(flags); } /* Atomic operations are already serializing on ARM */ |