Commit b340412a authored by James Calligeros's avatar James Calligeros Committed by Lee Jones
Browse files

mfd: macsmc: Add new __SMC_KEY macro 



When using the _SMC_KEY macro in switch/case statements, GCC 15.2.1 errors
out with 'case label does not reduce to an integer constant'. Introduce
a new __SMC_KEY macro that can be used instead.

Signed-off-by: default avatarJames Calligeros <jcalligeros99@gmail.com>
Link: https://patch.msgid.link/20251025-macsmc-subdevs-v4-5-374d5c9eba0e@gmail.com


Signed-off-by: default avatarLee Jones <lee@kernel.org>
parent 3a866087

include/linux/mfd/macsmc.h

+1 −0
Original line number Diff line number Diff line
@@ -41,6 +41,7 @@ typedef u32 smc_key; 
 */

#define SMC_KEY(s) (smc_key)(_SMC_KEY(#s))

#define _SMC_KEY(s) (((s)[0] << 24) | ((s)[1] << 16) | ((s)[2] << 8) | (s)[3])

#define __SMC_KEY(a, b, c, d) (((u32)(a) << 24) | ((u32)(b) << 16) | ((u32)(c) << 8) | ((u32)(d)))



#define APPLE_SMC_READABLE BIT(7)

#define APPLE_SMC_WRITABLE BIT(6)