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| author | Shuah Khan <skhan@linuxfoundation.org> | 2021-10-21 15:33:33 -0600 |
|---|---|---|
| committer | Shuah Khan <skhan@linuxfoundation.org> | 2021-10-25 09:27:20 -0600 |
| commit | dd40f44eabe1e122c6852fabb298aac05b083fce (patch) | |
| tree | 495eea3d68a4206def78b8520ed95a795b7147c0 | |
| parent | c3867ab5924b7a9a0b4a117902a08669d8be7c21 (diff) | |
| download | linux-dd40f44eabe1e122c6852fabb298aac05b083fce.tar.bz2 | |
selftests: x86: fix [-Wstringop-overread] warn in test_process_vm_readv()
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>
| -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 65c141ebfbbd..5b45e6986aea 100644 --- a/tools/testing/selftests/x86/test_vsyscall.c +++ b/tools/testing/selftests/x86/test_vsyscall.c @@ -497,7 +497,7 @@ 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"); |