diff options
Diffstat (limited to 'backport/backport-include/linux/scatterlist.h')
| -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 */ |