When building selftests/vDSO with clang the following warning shows up:
clang -std=gnu99 -Wno-pointer-sign vdso_test_gettimeofday.c parse_vdso.c \ -o /tmp/kselftest/vDSO/vdso_test_gettimeofday parse_vdso.c:65:9: warning: using the result of an assignment as a condition without parentheses [-Wparentheses] if (g = h & 0xf0000000) ~~^~~~~~~~~~~~~~~~
Rework to a parentheses before doing the check.
Signed-off-by: Anders Roxell anders.roxell@linaro.org Reviewed-by: Nick Desaulniers ndesaulniers@google.com ---
v1 -> v2: fixed checkpatch warnings
tools/testing/selftests/vDSO/parse_vdso.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-)
diff --git a/tools/testing/selftests/vDSO/parse_vdso.c b/tools/testing/selftests/vDSO/parse_vdso.c index 413f75620a35..fdd38f7e0e43 100644 --- a/tools/testing/selftests/vDSO/parse_vdso.c +++ b/tools/testing/selftests/vDSO/parse_vdso.c @@ -62,7 +62,8 @@ static unsigned long elf_hash(const unsigned char *name) while (*name) { h = (h << 4) + *name++; - if (g = h & 0xf0000000) + g = h & 0xf0000000; + if (g) h ^= g >> 24; h &= ~g; }
On Mon, Dec 06, 2021 at 11:29:31AM +0100, Anders Roxell wrote:
When building selftests/vDSO with clang the following warning shows up:
clang -std=gnu99 -Wno-pointer-sign vdso_test_gettimeofday.c parse_vdso.c \ -o /tmp/kselftest/vDSO/vdso_test_gettimeofday parse_vdso.c:65:9: warning: using the result of an assignment as a condition without parentheses [-Wparentheses] if (g = h & 0xf0000000) ~~^~~~~~~~~~~~~~~~
Rework to a parentheses before doing the check.
This part of the commit message does not line up with what you are actually doing now.
Signed-off-by: Anders Roxell anders.roxell@linaro.org Reviewed-by: Nick Desaulniers ndesaulniers@google.com
With that fixed:
Reviewed-by: Nathan Chancellor nathan@kernel.org
v1 -> v2: fixed checkpatch warnings
tools/testing/selftests/vDSO/parse_vdso.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-)
diff --git a/tools/testing/selftests/vDSO/parse_vdso.c b/tools/testing/selftests/vDSO/parse_vdso.c index 413f75620a35..fdd38f7e0e43 100644 --- a/tools/testing/selftests/vDSO/parse_vdso.c +++ b/tools/testing/selftests/vDSO/parse_vdso.c @@ -62,7 +62,8 @@ static unsigned long elf_hash(const unsigned char *name) while (*name) { h = (h << 4) + *name++;
if (g = h & 0xf0000000)
g = h & 0xf0000000;
h &= ~g; }if (g) h ^= g >> 24;
-- 2.33.0
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