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| author |   Mark Rutland <mark.rutland@arm.com> | 2022-08-17 16:59:14 +0100 |
|---|---|---|
| committer |   Catalin Marinas <catalin.marinas@arm.com> | 2022-09-09 13:58:33 +0100 |
| commit | 78f6f5c994ed22a35ce1cd3ec9aeda8e2fa328e6 (patch) | |
| tree | 7a26f895fa5f3083c72d11b853b07ee9afd0a00c /tools/testing/selftests/arm64/fp/fpsimd-test.S | |
| parent | arm64: atomics: remove LL/SC trampolines (diff) | |
| download | linux-dev-78f6f5c994ed22a35ce1cd3ec9aeda8e2fa328e6.tar.xz linux-dev-78f6f5c994ed22a35ce1cd3ec9aeda8e2fa328e6.zip | |
arm64: atomic: always inline the assembly
The __lse_*() and __ll_sc_*() atomic implementations are marked as
inline rather than __always_inline, permitting a compiler to generate
out-of-line versions, which may be instrumented.
We marked the atomic wrappers as __always_inline in commit:
c35a824c31834d94 ("arm64: make atomic helpers __always_inline")
... but did not think to do the same for the underlying implementations.
If the compiler were to out-of-line an LSE or LL/SC atomic, this could
break noinstr code. Ensure this doesn't happen by marking the underlying
implementations as __always_inline.
There should be no functional change as a result of this patch.
Signed-off-by: Mark Rutland <mark.rutland@arm.com>
Cc: Will Deacon <will@kernel.org>
Link: https://lore.kernel.org/r/20220817155914.3975112-3-mark.rutland@arm.com
Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
Diffstat (limited to 'tools/testing/selftests/arm64/fp/fpsimd-test.S')
0 files changed, 0 insertions, 0 deletions