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include/qemu/atomic: Use qemu_build_assert 

Change from QEMU_BUILD_BUG_ON, which requires ifdefs to avoid
problematic code, to qemu_build_assert, which can use C ifs.

Acked-by: Paolo Bonzini <pbonzini@redhat.com>
Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
This commit is contained in:
Richard Henderson 2022-10-22 22:05:16 +10:00
parent d44e3737f9
commit 590536369f
1 changed files with 8 additions and 8 deletions
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16
include/qemu/atomic.h
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@ -133,7 +133,7 @@
#define qatomic_read(ptr) \
({ \
QEMU_BUILD_BUG_ON(sizeof(*ptr) > ATOMIC_REG_SIZE); \
qemu_build_assert(sizeof(*ptr) <= ATOMIC_REG_SIZE); \
qatomic_read__nocheck(ptr); \
})
@ -141,7 +141,7 @@
__atomic_store_n(ptr, i, __ATOMIC_RELAXED)
#define qatomic_set(ptr, i) do { \
QEMU_BUILD_BUG_ON(sizeof(*ptr) > ATOMIC_REG_SIZE); \
qemu_build_assert(sizeof(*ptr) <= ATOMIC_REG_SIZE); \
qatomic_set__nocheck(ptr, i); \
} while(0)
@ -159,27 +159,27 @@
#define qatomic_rcu_read(ptr) \
({ \
QEMU_BUILD_BUG_ON(sizeof(*ptr) > ATOMIC_REG_SIZE); \
qemu_build_assert(sizeof(*ptr) <= ATOMIC_REG_SIZE); \
typeof_strip_qual(*ptr) _val; \
qatomic_rcu_read__nocheck(ptr, &_val); \
_val; \
})
#define qatomic_rcu_set(ptr, i) do { \
QEMU_BUILD_BUG_ON(sizeof(*ptr) > ATOMIC_REG_SIZE); \
qemu_build_assert(sizeof(*ptr) <= ATOMIC_REG_SIZE); \
__atomic_store_n(ptr, i, __ATOMIC_RELEASE); \
} while(0)
#define qatomic_load_acquire(ptr) \
({ \
QEMU_BUILD_BUG_ON(sizeof(*ptr) > ATOMIC_REG_SIZE); \
qemu_build_assert(sizeof(*ptr) <= ATOMIC_REG_SIZE); \
typeof_strip_qual(*ptr) _val; \
__atomic_load(ptr, &_val, __ATOMIC_ACQUIRE); \
_val; \
})
#define qatomic_store_release(ptr, i) do { \
QEMU_BUILD_BUG_ON(sizeof(*ptr) > ATOMIC_REG_SIZE); \
qemu_build_assert(sizeof(*ptr) <= ATOMIC_REG_SIZE); \
__atomic_store_n(ptr, i, __ATOMIC_RELEASE); \
} while(0)
@ -191,7 +191,7 @@
})
#define qatomic_xchg(ptr, i) ({ \
QEMU_BUILD_BUG_ON(sizeof(*ptr) > ATOMIC_REG_SIZE); \
qemu_build_assert(sizeof(*ptr) <= ATOMIC_REG_SIZE); \
qatomic_xchg__nocheck(ptr, i); \
})
@ -204,7 +204,7 @@
})
#define qatomic_cmpxchg(ptr, old, new) ({ \
QEMU_BUILD_BUG_ON(sizeof(*ptr) > ATOMIC_REG_SIZE); \
qemu_build_assert(sizeof(*ptr) <= ATOMIC_REG_SIZE); \
qatomic_cmpxchg__nocheck(ptr, old, new); \
})