linux_dsm_epyc7002/arch/s390/include
Heiko Carstens 259acc5c25 s390/cpumf: fix qsi inline assembly
The qsi inline assembly takes an initialized "cc" variable as output
operand but specifies it as write-to operand only instead of
read/write operand. This allows the compiler to omit the
initialization, which in fact it also does (gcc 6.1).

Use the "+" constraint modifier to fix this. In addition also use the
Q constraint to specify the hws_qsi_info_block memory location, so the
compiler can generate slightly better code. Also get rid of the cc
clobber since none of the instructions within the inline assembly
modify the condition code.

Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
2016-12-14 16:33:40 +01:00
..
asm s390/cpumf: fix qsi inline assembly 2016-12-14 16:33:40 +01:00
uapi/asm s390/zcrypt: Introduce new zcrypt device status API 2016-12-14 16:33:38 +01:00