Commit e85465e4 authored by Ilya Leoshkevich's avatar Ilya Leoshkevich Committed by Alexei Starovoitov
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libbpf: Simplify barrier_var() 



Use a single "+r" constraint instead of the separate "=r" and "0".

Signed-off-by: default avatarIlya Leoshkevich <iii@linux.ibm.com>
Link: https://lore.kernel.org/r/20230128000650.1516334-22-iii@linux.ibm.com


Signed-off-by: default avatarAlexei Starovoitov <ast@kernel.org>
parent 1b5e3853

tools/lib/bpf/bpf_helpers.h

+1 −1
Original line number Diff line number Diff line
@@ -109,7 +109,7 @@ 
 * This is a variable-specific variant of more global barrier().

 */

#ifndef barrier_var

#define barrier_var(var) asm volatile("" : "=r"(var) : "0"(var))

#define barrier_var(var) asm volatile("" : "+r"(var))

#endif



/*