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author | Kees Cook <keescook@chromium.org> | 2021-05-18 06:16:57 +0300 |
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committer | Kees Cook <keescook@chromium.org> | 2021-10-18 22:28:52 +0300 |
commit | 4797632f4f1d8af4e0670adcb97bf9800dc3beca (patch) | |
tree | d0c145b4b5ac8461f45a2dcf346945faaec8d080 /net/xfrm/xfrm_policy.c | |
parent | bb95ebbe89a7854368be061acefb22040fbcc486 (diff) | |
download | linux-4797632f4f1d8af4e0670adcb97bf9800dc3beca.tar.xz |
string.h: Introduce memset_after() for wiping trailing members/padding
A common idiom in kernel code is to wipe the contents of a structure
after a given member. This is especially useful in places where there is
trailing padding. These open-coded cases are usually difficult to read
and very sensitive to struct layout changes. Introduce a new helper,
memset_after() that takes the target struct instance, the byte to write,
and the member name after which the zeroing should start.
Cc: Steffen Klassert <steffen.klassert@secunet.com>
Cc: Herbert Xu <herbert@gondor.apana.org.au>
Cc: "David S. Miller" <davem@davemloft.net>
Cc: Jakub Kicinski <kuba@kernel.org>
Cc: Andrew Morton <akpm@linux-foundation.org>
Cc: Francis Laniel <laniel_francis@privacyrequired.com>
Cc: Vincenzo Frascino <vincenzo.frascino@arm.com>
Cc: Daniel Axtens <dja@axtens.net>
Cc: netdev@vger.kernel.org
Signed-off-by: Kees Cook <keescook@chromium.org>
Diffstat (limited to 'net/xfrm/xfrm_policy.c')
0 files changed, 0 insertions, 0 deletions