save_and_disable_irq 40 arch/arm64/include/asm/asm-uaccess.h save_and_disable_irq \tmp2 // avoid preemption save_and_disable_irq 48 arch/arm64/include/asm/asm-uaccess.h save_and_disable_irq \tmp3 // avoid preemption save_and_disable_irq 57 arch/arm64/include/asm/assembler.h .macro save_and_disable_irq, flags