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x86, asm: use bool for bitops and other assembly outputs

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The gcc people have confirmed that using "bool" when combined with
inline assembly always is treated as a byte-sized operand that can be
assumed to be 0 or 1, which is exactly what the SET instruction
emits.  Change the output types and intermediate variables of as many
operations as practical to "bool".

Signed-off-by: H. Peter Anvin <hpa@zytor.com>
Link: http://lkml.kernel.org/r/1465414726-197858-3-git-send-email-hpa@linux.intel.com
Reviewed-by: Andy Lutomirski <luto@kernel.org>
Reviewed-by: Borislav Petkov <bp@suse.de>
Acked-by: Peter Zijlstra (Intel) <peterz@infradead.org>
This commit is contained in:
H. Peter Anvin 2016-06-08 12:38:38 -07:00 • committed by H. Peter Anvin
parent 2823d4da5d
commit 117780eef7
13 changed files with 69 additions and 66 deletions
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12
include/linux/random.h
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@ -95,27 +95,27 @@ static inline void prandom_seed_state(struct rnd_state *state, u64 seed)
#ifdef CONFIG_ARCH_RANDOM
# include <asm/archrandom.h>
#else
static inline int arch_get_random_long(unsigned long *v)
static inline bool arch_get_random_long(unsigned long *v)
{
return 0;
}
static inline int arch_get_random_int(unsigned int *v)
static inline bool arch_get_random_int(unsigned int *v)
{
return 0;
}
static inline int arch_has_random(void)
static inline bool arch_has_random(void)
{
return 0;
}
static inline int arch_get_random_seed_long(unsigned long *v)
static inline bool arch_get_random_seed_long(unsigned long *v)
{
return 0;
}
static inline int arch_get_random_seed_int(unsigned int *v)
static inline bool arch_get_random_seed_int(unsigned int *v)
{
return 0;
}
static inline int arch_has_random_seed(void)
static inline bool arch_has_random_seed(void)
{
return 0;
}