There's no point using alternative_io() when there are no outputs. No functional change.
Signed-off-by: Jan Beulich <[email protected]> --- a/xen/arch/x86/flushtlb.c +++ b/xen/arch/x86/flushtlb.c @@ -286,11 +286,10 @@ void cache_flush(const void *addr, unsig * + prefix than a clflush + nop, and hence the prefix is added instead * of letting the alternative framework fill the gap by appending nops. */ - alternative_io("ds; clflush %[p]", - "data16 clflush %[p]", /* clflushopt */ - X86_FEATURE_CLFLUSHOPT, - /* no outputs */, - [p] "m" (*(const char *)(addr))); + alternative_input("ds; clflush %[p]", + "data16 clflush %[p]", /* clflushopt */ + X86_FEATURE_CLFLUSHOPT, + [p] "m" (*(const char *)(addr))); } alternative_2("",
