Heiko Carstens 63678eecec s390/preempt: disable __preempt_count_add() optimization for PROFILE_ALL_BRANCHES ... gcc 12 does not (always) optimize away code that should only be generated if parameters are constant and within in a certain range. This depends on various obscure kernel config options, however in particular PROFILE_ALL_BRANCHES can trigger this compile error: In function ‘__atomic_add_const’, inlined from ‘__preempt_count_add.part.0’ at ./arch/s390/include/asm/preempt.h:50:3: ./arch/s390/include/asm/atomic_ops.h:80:9: error: impossible constraint in ‘asm’ 80 | asm volatile( \ | ^~~ Workaround this by simply disabling the optimization for PROFILE_ALL_BRANCHES, since the kernel will be so slow, that this optimization won't matter at all. Reported-by: Thomas Richter <tmricht@linux.ibm.com> Reviewed-by: Sven Schnelle <svens@linux.ibm.com> Signed-off-by: Heiko Carstens <hca@linux.ibm.com>		2022-05-11 14:40:58 +02:00
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asm	s390/preempt: disable __preempt_count_add() optimization for PROFILE_ALL_BRANCHES	2022-05-11 14:40:58 +02:00
uapi/asm	s390/zcrypt: code cleanup	2022-04-25 13:54:14 +02:00