smp_dmb 297 arch/arm/include/asm/assembler.h .macro smp_dmb mode smp_dmb 41 arch/arm/lib/bitops.h smp_dmb smp_dmb 53 arch/arm/lib/bitops.h smp_dmb smp_dmb 91 arch/arm64/include/asm/assembler.h .macro smp_dmb, opt