The 26d75e67c commit (arm64/cpufeature.h: Add macros for a cpu features testing) provides set of macros for the testing processor's FP and advanced SIMD features.
Let's use these macros instead of direct calculation. Signed-off-by: Alexander Kuleshov <[email protected]> --- arch/arm64/kernel/fpsimd.c | 5 +++-- 1 file changed, 3 insertions(+), 2 deletions(-) diff --git a/arch/arm64/kernel/fpsimd.c b/arch/arm64/kernel/fpsimd.c index 44d6f75..12943a5 100644 --- a/arch/arm64/kernel/fpsimd.c +++ b/arch/arm64/kernel/fpsimd.c @@ -27,6 +27,7 @@ #include <asm/fpsimd.h> #include <asm/cputype.h> +#include <asm/cpufeature.h> #define FPEXC_IOF (1 << 0) #define FPEXC_DZF (1 << 1) @@ -333,13 +334,13 @@ static int __init fpsimd_init(void) { u64 pfr = read_cpuid(ID_AA64PFR0_EL1); - if (pfr & (0xf << 16)) { + if (ID_AA64PFR0_EL1_FP(pfr)) { pr_notice("Floating-point is not implemented\n"); return 0; } elf_hwcap |= HWCAP_FP; - if (pfr & (0xf << 20)) + if (ID_AA64PFR0_EL1_ADV_SIMD(pfr)) pr_notice("Advanced SIMD is not implemented\n"); else elf_hwcap |= HWCAP_ASIMD; -- 2.5.0 -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to [email protected] More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
