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| author | Eric Biggers <ebiggers@google.com> | 2025-01-28 01:45:23 +0300 |
|---|---|---|
| committer | Dave Hansen <dave.hansen@linux.intel.com> | 2025-02-11 01:45:59 +0300 |
| commit | ccb7735a1ea22621f21c3133e4f5f3da5fe5f5b7 (patch) | |
| tree | b3764d81f45f2bcfcf64e0de43c6998b0bc61ab1 /tools/perf/scripts/python/task-analyzer.py | |
| parent | a64dcfb451e254085a7daee5fe51bf22959d52d3 (diff) | |
| download | linux-ccb7735a1ea22621f21c3133e4f5f3da5fe5f5b7.tar.xz | |
x86/fpu: Fully optimize out WARN_ON_FPU()
Currently WARN_ON_FPU evaluates its argument even if
CONFIG_X86_DEBUG_FPU is disabled, which adds unnecessary instructions to
several functions, for example kernel_fpu_begin(). Fix this by using
BUILD_BUG_ON_INVALID(x) in the no-debug case rather than (void)(x).
Fixes: 83242c515881 ("x86/fpu: Make WARN_ON_FPU() more robust in the !CONFIG_X86_DEBUG_FPU case")
Suggested-by: Sean Christopherson <seanjc@google.com>
Signed-off-by: Eric Biggers <ebiggers@google.com>
Signed-off-by: Dave Hansen <dave.hansen@linux.intel.com>
Link: https://lore.kernel.org/all/20250127224523.94300-1-ebiggers%40kernel.org
Diffstat (limited to 'tools/perf/scripts/python/task-analyzer.py')
0 files changed, 0 insertions, 0 deletions