may_use_simd 1261 arch/arm64/kernel/fpsimd.c BUG_ON(!may_use_simd()); may_use_simd 1321 arch/arm64/kernel/fpsimd.c if (may_use_simd()) { may_use_simd 64 include/crypto/internal/simd.h (may_use_simd() && !this_cpu_read(crypto_simd_disabled_for_test)) may_use_simd 66 include/crypto/internal/simd.h #define crypto_simd_usable() may_use_simd()