Messages in this thread Patch in this message | | | From | Gavin Shan <> | Subject | [PATCH] arm64: Remove system_uses_lse_atomics() | Date | Tue, 17 Oct 2023 10:50:36 +1000 |
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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> --- arch/arm64/include/asm/lse.h | 9 +-------- 1 file changed, 1 insertion(+), 8 deletions(-)
diff --git a/arch/arm64/include/asm/lse.h b/arch/arm64/include/asm/lse.h index cbbcdc35c4cd..3129a5819d0e 100644 --- a/arch/arm64/include/asm/lse.h +++ b/arch/arm64/include/asm/lse.h @@ -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 -- 2.41.0
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