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Diffstat (limited to 'include/linux/scatterlist.h')
-rw-r--r--include/linux/scatterlist.h9
1 files changed, 5 insertions, 4 deletions
diff --git a/include/linux/scatterlist.h b/include/linux/scatterlist.h
index 9b1ef0c82..556ec1ea2 100644
--- a/include/linux/scatterlist.h
+++ b/include/linux/scatterlist.h
@@ -161,10 +161,6 @@ static inline void sg_set_buf(struct scatterlist *sg, const void *buf,
static inline void sg_chain(struct scatterlist *prv, unsigned int prv_nents,
struct scatterlist *sgl)
{
-#ifndef CONFIG_ARCH_HAS_SG_CHAIN
- BUG();
-#endif
-
/*
* offset and length are unused for chain entry. Clear them.
*/
@@ -251,6 +247,11 @@ struct scatterlist *sg_next(struct scatterlist *);
struct scatterlist *sg_last(struct scatterlist *s, unsigned int);
void sg_init_table(struct scatterlist *, unsigned int);
void sg_init_one(struct scatterlist *, const void *, unsigned int);
+int sg_split(struct scatterlist *in, const int in_mapped_nents,
+ const off_t skip, const int nb_splits,
+ const size_t *split_sizes,
+ struct scatterlist **out, int *out_mapped_nents,
+ gfp_t gfp_mask);
typedef struct scatterlist *(sg_alloc_fn)(unsigned int, gfp_t);
typedef void (sg_free_fn)(struct scatterlist *, unsigned int);