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author | Justin Stitt <justinstitt@google.com> | 2023-10-10 21:38:11 +0000 |
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committer | Jakub Kicinski <kuba@kernel.org> | 2023-10-11 17:23:32 -0700 |
commit | 473f8f2d1bfe1103f20140fdc80cad406b4d68c0 (patch) | |
tree | 90743d5ff27164ad74f2e4c5132d2535502eaac8 /drivers/net/ethernet/marvell/mvpp2/mvpp2_main.c | |
parent | cb7fb0aa3cd80c6bf13abd1d4a75b0640c2e7eaf (diff) |
octeontx2-af: replace deprecated strncpy with strscpy
`strncpy` is deprecated for use on NUL-terminated destination strings
[1] and as such we should prefer more robust and less ambiguous string
interfaces.
We can see that linfo->lmac_type is expected to be NUL-terminated based
on the `... - 1`'s present in the current code. Presumably making room
for a NUL-byte at the end of the buffer.
Considering the above, a suitable replacement is `strscpy` [2] due to
the fact that it guarantees NUL-termination on the destination buffer
without unnecessarily NUL-padding.
Let's also prefer the more idiomatic strscpy usage of (dest, src,
sizeof(dest)) rather than (dest, src, SOME_LEN).
Link: https://www.kernel.org/doc/html/latest/process/deprecated.html#strncpy-on-nul-terminated-strings [1]
Link: https://manpages.debian.org/testing/linux-manual-4.8/strscpy.9.en.html [2]
Link: https://github.com/KSPP/linux/issues/90
Signed-off-by: Justin Stitt <justinstitt@google.com>
Reviewed-by: Kees Cook <keescook@chromium.org>
Link: https://lore.kernel.org/r/20231010-strncpy-drivers-net-ethernet-marvell-octeontx2-af-cgx-c-v1-1-a443e18f9de8@google.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Diffstat (limited to 'drivers/net/ethernet/marvell/mvpp2/mvpp2_main.c')
0 files changed, 0 insertions, 0 deletions