scratch_reg2      210 arch/x86/entry/calling.h .macro SWITCH_TO_USER_CR3_NOSTACK scratch_reg:req scratch_reg2:req
scratch_reg2      246 arch/x86/entry/calling.h 	SWITCH_TO_USER_CR3_NOSTACK scratch_reg=\scratch_reg scratch_reg2=%rax
scratch_reg2      308 arch/x86/entry/calling.h .macro SWITCH_TO_USER_CR3_NOSTACK scratch_reg:req scratch_reg2:req