]> git.baikalelectronics.ru Git - kernel.git/commit
lib/scatterlist: add sg_init_marker() helper
authorPrashant Bhole <bhole_prashant_q7@lab.ntt.co.jp>
Fri, 30 Mar 2018 00:20:59 +0000 (09:20 +0900)
committerDaniel Borkmann <daniel@iogearbox.net>
Fri, 30 Mar 2018 20:50:15 +0000 (22:50 +0200)
commite484c7ae62678cb937fa49aca46a26bd6468c2a4
tree97578ab32a6848feb7f29972f58753febe01d0ce
parent3730c54fc7728c03bf2b7c744b9e9d78e4274375
lib/scatterlist: add sg_init_marker() helper

sg_init_marker initializes sg_magic in the sg table and calls
sg_mark_end() on the last entry of the table. This can be useful to
avoid memset in sg_init_table() when scatterlist is already zeroed out

For example: when scatterlist is embedded inside other struct and that
container struct is zeroed out

Suggested-by: Daniel Borkmann <daniel@iogearbox.net>
Signed-off-by: Prashant Bhole <bhole_prashant_q7@lab.ntt.co.jp>
Acked-by: John Fastabend <john.fastabend@gmail.com>
Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
include/linux/scatterlist.h
lib/scatterlist.c