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s390/cpu_mf: remove register variable in __ecctr() 

Using a register variable for r4 is not necessary.  Let the
compiler decide the register to be used.

Reported-by: Heiko Carstens <heiko.carstens@de.ibm.com>
Signed-off-by: Hendrik Brueckner <brueckner@linux.vnet.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
This commit is contained in:
Hendrik Brueckner 2017-02-20 16:07:43 +01:00 committed by Martin Schwidefsky
parent 66a49784f9
commit 26f268ac68
1 changed files with 1 additions and 1 deletions
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2
arch/s390/include/asm/cpu_mf.h
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@ -174,7 +174,7 @@ static inline int lcctl(u64 ctl)
/* Extract CPU counter */
static inline int __ecctr(u64 ctr, u64 *content)
{
register u64 _content asm("4") = 0;
u64 _content;
int cc;
asm volatile (