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| author | Shuah Khan <skhan@linuxfoundation.org> | 2021-10-21 15:33:33 -0600 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2022-01-11 15:23:31 +0100 |
| commit | cbbed1338d76c047a4e2a757b83a7ade926cdd55 (patch) | |
| tree | c70e33f6a8c93e1ebf2f0d00f4764290865aa5e7 /tools | |
| parent | 6904679c8400c5b721b68725886ecca49bca8ef4 (diff) | |
selftests: x86: fix [-Wstringop-overread] warn in test_process_vm_readv()
commit dd40f44eabe1e122c6852fabb298aac05b083fce upstream.
Fix the following [-Wstringop-overread] by passing in the variable
instead of the value.
test_vsyscall.c: In function ‘test_process_vm_readv’:
test_vsyscall.c:500:22: warning: ‘__builtin_memcmp_eq’ specified bound 4096 exceeds source size 0 [-Wstringop-overread]
500 | if (!memcmp(buf, (const void *)0xffffffffff600000, 4096)) {
| ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
Signed-off-by: Shuah Khan <skhan@linuxfoundation.org>
Cc: Naresh Kamboju <naresh.kamboju@linaro.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'tools')
| -rw-r--r-- | tools/testing/selftests/x86/test_vsyscall.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/tools/testing/selftests/x86/test_vsyscall.c b/tools/testing/selftests/x86/test_vsyscall.c index a4f4d4cf22c3..d0752a0a8f36 100644 --- a/tools/testing/selftests/x86/test_vsyscall.c +++ b/tools/testing/selftests/x86/test_vsyscall.c @@ -480,7 +480,7 @@ static int test_process_vm_readv(void) } if (vsyscall_map_r) { - if (!memcmp(buf, (const void *)0xffffffffff600000, 4096)) { + if (!memcmp(buf, remote.iov_base, sizeof(buf))) { printf("[OK]\tIt worked and read correct data\n"); } else { printf("[FAIL]\tIt worked but returned incorrect data\n"); |