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| author |   Yuntao Wang <ytcoode@gmail.com> | 2022-03-04 15:04:08 +0800 |
|---|---|---|
| committer |   Andrii Nakryiko <andrii@kernel.org> | 2022-03-07 22:04:33 -0800 |
| commit | 03b9c7fa3f15f51bcd07f3828c2a01311e7746c4 (patch) | |
| tree | 0c06340fc7c23e7edcaec27e902d871fd1183cc9 /tools/perf/scripts/python | |
| parent | libbpf: Unmap rings when umem deleted (diff) | |
| download | linux-dev-03b9c7fa3f15f51bcd07f3828c2a01311e7746c4.tar.xz linux-dev-03b9c7fa3f15f51bcd07f3828c2a01311e7746c4.zip | |
bpf: Replace strncpy() with strscpy()
Using strncpy() on NUL-terminated strings is considered deprecated[1].
Moreover, if the length of 'task->comm' is less than the destination buffer
size, strncpy() will NUL-pad the destination buffer, which is a needless
performance penalty.
Replacing strncpy() with strscpy() fixes all these issues.
[1] https://www.kernel.org/doc/html/latest/process/deprecated.html#strncpy-on-nul-terminated-strings
Signed-off-by: Yuntao Wang <ytcoode@gmail.com>
Signed-off-by: Andrii Nakryiko <andrii@kernel.org>
Acked-by: Yonghong Song <yhs@fb.com>
Link: https://lore.kernel.org/bpf/20220304070408.233658-1-ytcoode@gmail.com
Diffstat (limited to 'tools/perf/scripts/python')
0 files changed, 0 insertions, 0 deletions