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s390/string: Convert to use flag output macros

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Use flag output macros in inline asm to allow for better code generation if
the compiler has support for the flag output constraint.

Reviewed-by: Juergen Christ <jchrist@linux.ibm.com>
Signed-off-by: Heiko Carstens <hca@linux.ibm.com>
This commit is contained in:
Heiko Carstens 2024-11-07 16:11:45 +01:00
parent a6122f690a
commit 0caf91f6d6
1 changed files with 5 additions and 5 deletions
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10
arch/s390/lib/string.c
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@ -15,6 +15,7 @@
#include <linux/types.h>
#include <linux/string.h>
#include <linux/export.h>
#include <asm/asm.h>
/*
* Helper functions to find the end of a string
@ -238,12 +239,11 @@ static inline int clcle(const char *s1, unsigned long l1,
asm volatile(
"0: clcle %[r1],%[r3],0\n"
" jo 0b\n"
" ipm %[cc]\n"
" srl %[cc],28\n"
: [cc] "=&d" (cc), [r1] "+&d" (r1.pair), [r3] "+&d" (r3.pair)
CC_IPM(cc)
: CC_OUT(cc, cc), [r1] "+d" (r1.pair), [r3] "+d" (r3.pair)
:
: "cc", "memory");
return cc;
: CC_CLOBBER_LIST("memory"));
return CC_TRANSFORM(cc);
}
/**