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| author |  Ilya Leoshkevich <iii@linux.ibm.com>
| 2023-01-28 01:06:40 +0100 |
|---|---|---|
| committer |  Alexei Starovoitov <ast@kernel.org>
| 2023-01-28 12:45:14 -0800 |
| commit | e85465e420be1e408f9465f8b6fd9e2f7b17aea1 (patch) | |
| tree | 10a9743618953d6e59c25345b7a7c76c6d3e68c0 /tools/lib | |
| parent | selftests/bpf: Fix profiler on s390x (diff) | |
| download | linux-e85465e420be1e408f9465f8b6fd9e2f7b17aea1.tar.gz linux-e85465e420be1e408f9465f8b6fd9e2f7b17aea1.tar.bz2 linux-e85465e420be1e408f9465f8b6fd9e2f7b17aea1.zip | |
libbpf: Simplify barrier_var()
Use a single "+r" constraint instead of the separate "=r" and "0".
Signed-off-by: Ilya Leoshkevich <iii@linux.ibm.com>
Link: https://lore.kernel.org/r/20230128000650.1516334-22-iii@linux.ibm.com
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
Diffstat (limited to 'tools/lib')
| -rw-r--r-- | tools/lib/bpf/bpf_helpers.h | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/tools/lib/bpf/bpf_helpers.h b/tools/lib/bpf/bpf_helpers.h index d37c4fe2849d..5ec1871acb2f 100644 --- a/tools/lib/bpf/bpf_helpers.h +++ b/tools/lib/bpf/bpf_helpers.h @@ -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 /* |