diff options
| author | Felix Fietkau <nbd@nbd.name> | 2018-09-06 13:30:02 +0200 |
|---|---|---|
| committer | Johannes Berg <johannes.berg@intel.com> | 2018-09-10 08:55:06 +0200 |
| commit | a28ba2a16e3905162f65427cbcf5cfe3e1f68b3c (patch) | |
| tree | 3325ea7ef902fd5d54473ed4d01424ebeeece7be /backport | |
| parent | 8910ef3c16910d63ade2ecf184cf01be487d70ea (diff) | |
backports: backport sg_init_marker()
It is used by new mt76 changes
Signed-off-by: Felix Fietkau <nbd@nbd.name>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Diffstat (limited to 'backport')
| -rw-r--r-- | backport/backport-include/linux/scatterlist.h | 23 |
1 files changed, 23 insertions, 0 deletions
diff --git a/backport/backport-include/linux/scatterlist.h b/backport/backport-include/linux/scatterlist.h index bfc74494..06934b6b 100644 --- a/backport/backport-include/linux/scatterlist.h +++ b/backport/backport-include/linux/scatterlist.h @@ -102,4 +102,27 @@ size_t sg_pcopy_from_buffer(struct scatterlist *sgl, unsigned int nents, #endif /* LINUX_VERSION_IS_LESS(3, 11, 0) */ +#if LINUX_VERSION_IS_LESS(4, 17, 0) + +#define sg_init_marker LINUX_BACKPORT(sg_init_marker) +/** + * sg_init_marker - Initialize markers in sg table + * @sgl: The SG table + * @nents: Number of entries in table + * + **/ +static inline void sg_init_marker(struct scatterlist *sgl, + unsigned int nents) +{ +#ifdef CONFIG_DEBUG_SG + unsigned int i; + + for (i = 0; i < nents; i++) + sgl[i].sg_magic = SG_MAGIC; +#endif + sg_mark_end(&sgl[nents - 1]); +} + +#endif /* LINUX_VERSION_IS_LESS(4, 17, 0) */ + #endif /* __BACKPORT_SCATTERLIST_H */ |