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arm64: Remove system_uses_lse_atomics()

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There are two variants of system_uses_lse_atomics(), depending on
CONFIG_ARM64_LSE_ATOMICS. The function isn't called anywhere when
CONFIG_ARM64_LSE_ATOMICS is disabled. It can be directly replaced
by alternative_has_cap_likely(ARM64_HAS_LSE_ATOMICS) when the kernel
option is enabled.

No need to keep system_uses_lse_atomics() and just remove it.

Signed-off-by: Gavin Shan <gshan@redhat.com>
Acked-by: Mark Rutland <mark.rutland@arm.com>
Link: https://lore.kernel.org/r/20231017005036.334067-1-gshan@redhat.com
Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
This commit is contained in:
Gavin Shan 2023-10-17 10:50:36 +10:00 committed by Catalin Marinas
parent dba2ff4922
commit 0899a6278a
1 changed files with 1 additions and 8 deletions
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9
arch/arm64/include/asm/lse.h
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@ -16,14 +16,9 @@
#include <asm/atomic_lse.h>
#include <asm/cpucaps.h>
static __always_inline bool system_uses_lse_atomics(void)
{
return alternative_has_cap_likely(ARM64_HAS_LSE_ATOMICS);
}
#define __lse_ll_sc_body(op, ...) \
({ \
system_uses_lse_atomics() ? \
alternative_has_cap_likely(ARM64_HAS_LSE_ATOMICS) ? \
__lse_##op(__VA_ARGS__) : \
__ll_sc_##op(__VA_ARGS__); \
})
@ -34,8 +29,6 @@ static __always_inline bool system_uses_lse_atomics(void)
#else /* CONFIG_ARM64_LSE_ATOMICS */
static inline bool system_uses_lse_atomics(void) { return false; }
#define __lse_ll_sc_body(op, ...) __ll_sc_##op(__VA_ARGS__)
#define ARM64_LSE_ATOMIC_INSN(llsc, lse) llsc