49 	int nents;  in sg_nents()  local
50 	for (nents = 0; sg; sg = sg_next(sg))  in sg_nents()
51 		nents++;  in sg_nents()
52 	return nents;  in sg_nents()
72 	int nents;  in sg_nents_for_len()  local
78 	for (nents = 0, total = 0; sg; sg = sg_next(sg)) {  in sg_nents_for_len()
79 		nents++;  in sg_nents_for_len()
82 			return nents;  in sg_nents_for_len()
103 struct scatterlist *sg_last(struct scatterlist *sgl, unsigned int nents)  in sg_last()  argument
108 	for_each_sg(sgl, sg, nents, i)  in sg_last()
126 void sg_init_table(struct scatterlist *sgl, unsigned int nents)  in sg_init_table()  argument
128 	memset(sgl, 0, sizeof(*sgl) * nents);  in sg_init_table()
129 	sg_init_marker(sgl, nents);  in sg_init_table()
151 static struct scatterlist *sg_kmalloc(unsigned int nents, gfp_t gfp_mask)  in sg_kmalloc()  argument
153 	if (nents == SG_MAX_SINGLE_ALLOC) {  in sg_kmalloc()
167 		return kmalloc_array(nents, sizeof(struct scatterlist),  in sg_kmalloc()
171 static void sg_kfree(struct scatterlist *sg, unsigned int nents)  in sg_kfree()  argument
173 	if (nents == SG_MAX_SINGLE_ALLOC) {  in sg_kfree()
263 int __sg_alloc_table(struct sg_table *table, unsigned int nents,  in __sg_alloc_table()  argument
272 	if (nents == 0)  in __sg_alloc_table()
275 	if (WARN_ON_ONCE(nents > max_ents))  in __sg_alloc_table()
279 	left = nents;  in __sg_alloc_table()
306 				table->nents = ++table->orig_nents;  in __sg_alloc_table()
312 		table->nents = table->orig_nents += sg_size;  in __sg_alloc_table()
347 int sg_alloc_table(struct sg_table *table, unsigned int nents, gfp_t gfp_mask)  in sg_alloc_table()  argument
351 	ret = __sg_alloc_table(table, nents, SG_MAX_SINGLE_ALLOC,  in sg_alloc_table()
552 void sgl_free_n_order(struct scatterlist *sgl, int nents, int order)  in sgl_free_n_order()  argument
558 	for_each_sg(sgl, sg, nents, i) {  in sgl_free_n_order()
593 			  struct scatterlist *sglist, unsigned int nents,  in __sg_page_iter_start()  argument
597 	piter->__nents = nents;  in __sg_page_iter_start()
641 		    unsigned int nents, unsigned int flags)  in sg_miter_start()  argument
645 	__sg_page_iter_start(&miter->piter, sgl, nents, 0);  in sg_miter_start()
805 size_t sg_copy_buffer(struct scatterlist *sgl, unsigned int nents, void *buf,  in sg_copy_buffer()  argument
817 	sg_miter_start(&miter, sgl, nents, sg_flags);  in sg_copy_buffer()
851 size_t sg_copy_from_buffer(struct scatterlist *sgl, unsigned int nents,  in sg_copy_from_buffer()  argument
854 	return sg_copy_buffer(sgl, nents, (void *)buf, buflen, 0, false);  in sg_copy_from_buffer()
868 size_t sg_copy_to_buffer(struct scatterlist *sgl, unsigned int nents,  in sg_copy_to_buffer()  argument
871 	return sg_copy_buffer(sgl, nents, buf, buflen, 0, true);  in sg_copy_to_buffer()
886 size_t sg_pcopy_from_buffer(struct scatterlist *sgl, unsigned int nents,  in sg_pcopy_from_buffer()  argument
889 	return sg_copy_buffer(sgl, nents, (void *)buf, buflen, skip, false);  in sg_pcopy_from_buffer()
904 size_t sg_pcopy_to_buffer(struct scatterlist *sgl, unsigned int nents,  in sg_pcopy_to_buffer()  argument
907 	return sg_copy_buffer(sgl, nents, buf, buflen, skip, true);  in sg_pcopy_to_buffer()
920 size_t sg_zero_buffer(struct scatterlist *sgl, unsigned int nents,  in sg_zero_buffer()  argument
927 	sg_miter_start(&miter, sgl, nents, sg_flags);  in sg_zero_buffer()