&cpu_info.x86_capability is __percpu, and the second argument of x86_this_cpu_test_bit() is expected to be __percpu. Don't cast the __percpu away and then implicitly add it again. This gets rid of 106 lines of sparse warnings with the kernel config I'm using.
Signed-off-by: Jann Horn <[email protected]> --- arch/x86/include/asm/cpufeature.h | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) diff --git a/arch/x86/include/asm/cpufeature.h b/arch/x86/include/asm/cpufeature.h index ce95b8cbd229..0df88893e767 100644 --- a/arch/x86/include/asm/cpufeature.h +++ b/arch/x86/include/asm/cpufeature.h @@ -113,7 +113,8 @@ extern const char * const x86_bug_flags[NBUGINTS*32]; #define this_cpu_has(bit) \ (__builtin_constant_p(bit) && REQUIRED_MASK_BIT_SET(bit) ? 1 : \ - x86_this_cpu_test_bit(bit, (unsigned long *)&cpu_info.x86_capability)) + x86_this_cpu_test_bit(bit, \ + (unsigned long __percpu *)&cpu_info.x86_capability)) /* * This macro is for detection of features which need kernel -- 2.21.0.392.gf8f6787159e-goog
