29 static inline void scatterwalk_start(struct scatter_walk *walk,  in scatterwalk_start()  argument
32 	walk->sg = sg;  in scatterwalk_start()
33 	walk->offset = sg->offset;  in scatterwalk_start()
40 static inline void scatterwalk_start_at_pos(struct scatter_walk *walk,  in scatterwalk_start_at_pos()  argument
48 	walk->sg = sg;  in scatterwalk_start_at_pos()
49 	walk->offset = sg->offset + pos;  in scatterwalk_start_at_pos()
52 static inline unsigned int scatterwalk_clamp(struct scatter_walk *walk,  in scatterwalk_clamp()  argument
58 	if (walk->offset >= walk->sg->offset + walk->sg->length)  in scatterwalk_clamp()
59 		scatterwalk_start(walk, sg_next(walk->sg));  in scatterwalk_clamp()
60 	len_this_sg = walk->sg->offset + walk->sg->length - walk->offset;  in scatterwalk_clamp()
76 		limit = PAGE_SIZE - offset_in_page(walk->offset);  in scatterwalk_clamp()
89 static inline void scatterwalk_get_sglist(struct scatter_walk *walk,  in scatterwalk_get_sglist()  argument
92 	if (walk->offset >= walk->sg->offset + walk->sg->length)  in scatterwalk_get_sglist()
93 		scatterwalk_start(walk, sg_next(walk->sg));  in scatterwalk_get_sglist()
94 	sg_set_page(sg_out, sg_page(walk->sg),  in scatterwalk_get_sglist()
95 		    walk->sg->offset + walk->sg->length - walk->offset,  in scatterwalk_get_sglist()
96 		    walk->offset);  in scatterwalk_get_sglist()
97 	scatterwalk_crypto_chain(sg_out, sg_next(walk->sg), 2);  in scatterwalk_get_sglist()
100 static inline void scatterwalk_map(struct scatter_walk *walk)  in scatterwalk_map()  argument
102 	struct page *base_page = sg_page(walk->sg);  in scatterwalk_map()
103 	unsigned int offset = walk->offset;  in scatterwalk_map()
127 	walk->__addr = addr;  in scatterwalk_map()
141 static inline unsigned int scatterwalk_next(struct scatter_walk *walk,  in scatterwalk_next()  argument
144 	unsigned int nbytes = scatterwalk_clamp(walk, total);  in scatterwalk_next()
146 	scatterwalk_map(walk);  in scatterwalk_next()
150 static inline void scatterwalk_unmap(struct scatter_walk *walk)  in scatterwalk_unmap()  argument
153 		kunmap_local(walk->__addr);  in scatterwalk_unmap()
156 static inline void scatterwalk_advance(struct scatter_walk *walk,  in scatterwalk_advance()  argument
159 	walk->offset += nbytes;  in scatterwalk_advance()
170 static inline void scatterwalk_done_src(struct scatter_walk *walk,  in scatterwalk_done_src()  argument
173 	scatterwalk_unmap(walk);  in scatterwalk_done_src()
174 	scatterwalk_advance(walk, nbytes);  in scatterwalk_done_src()
214 static inline void scatterwalk_done_dst(struct scatter_walk *walk,  in scatterwalk_done_dst()  argument
217 	scatterwalk_unmap(walk);  in scatterwalk_done_dst()
219 		__scatterwalk_flush_dcache_pages(sg_page(walk->sg),  in scatterwalk_done_dst()
220 						 walk->offset, nbytes);  in scatterwalk_done_dst()
221 	scatterwalk_advance(walk, nbytes);  in scatterwalk_done_dst()
224 void scatterwalk_skip(struct scatter_walk *walk, unsigned int nbytes);
226 void memcpy_from_scatterwalk(void *buf, struct scatter_walk *walk,
229 void memcpy_to_scatterwalk(struct scatter_walk *walk, const void *buf,