mirror of
https://github.com/torvalds/linux
synced 2024-09-06 09:51:23 +00:00
s390/hypfs: use basic block for diag inline assembly
Use only simple inline assemblies which consist of a single basic block if the register asm construct is being used. Otherwise gcc would generate broken code if the compiler option --sanitize-coverage=trace-pc would be used. Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com> Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
This commit is contained in:
parent
2c79813a1f
commit
e030c1125e
|
@ -337,9 +337,9 @@ static inline __u64 phys_cpu__ctidx(enum diag204_format type, void *hdr)
|
|||
|
||||
/* Diagnose 204 functions */
|
||||
|
||||
static inline int __diag204(unsigned long subcode, unsigned long size, void *addr)
|
||||
static inline int __diag204(unsigned long *subcode, unsigned long size, void *addr)
|
||||
{
|
||||
register unsigned long _subcode asm("0") = subcode;
|
||||
register unsigned long _subcode asm("0") = *subcode;
|
||||
register unsigned long _size asm("1") = size;
|
||||
|
||||
asm volatile(
|
||||
|
@ -347,15 +347,17 @@ static inline int __diag204(unsigned long subcode, unsigned long size, void *add
|
|||
"0: nopr %%r7\n"
|
||||
EX_TABLE(0b,0b)
|
||||
: "+d" (_subcode), "+d" (_size) : "d" (addr) : "memory");
|
||||
if (_subcode)
|
||||
return -1;
|
||||
*subcode = _subcode;
|
||||
return _size;
|
||||
}
|
||||
|
||||
static int diag204(unsigned long subcode, unsigned long size, void *addr)
|
||||
{
|
||||
diag_stat_inc(DIAG_STAT_X204);
|
||||
return __diag204(subcode, size, addr);
|
||||
size = __diag204(&subcode, size, addr);
|
||||
if (subcode)
|
||||
return -1;
|
||||
return size;
|
||||
}
|
||||
|
||||
/*
|
||||
|
|
Loading…
Reference in a new issue