58 static inline unsigned int scatterwalk_pagelen(struct scatter_walk *walk)  in scatterwalk_pagelen()  argument
60 	unsigned int len = walk->sg->offset + walk->sg->length - walk->offset;  in scatterwalk_pagelen()
61 	unsigned int len_this_page = offset_in_page(~walk->offset) + 1;  in scatterwalk_pagelen()
65 static inline unsigned int scatterwalk_clamp(struct scatter_walk *walk,  in scatterwalk_clamp()  argument
68 	unsigned int len_this_page = scatterwalk_pagelen(walk);  in scatterwalk_clamp()
72 static inline void scatterwalk_advance(struct scatter_walk *walk,  in scatterwalk_advance()  argument
75 	walk->offset += nbytes;  in scatterwalk_advance()
78 static inline unsigned int scatterwalk_aligned(struct scatter_walk *walk,  in scatterwalk_aligned()  argument
81 	return !(walk->offset & alignmask);  in scatterwalk_aligned()
84 static inline struct page *scatterwalk_page(struct scatter_walk *walk)  in scatterwalk_page()  argument
86 	return sg_page(walk->sg) + (walk->offset >> PAGE_SHIFT);  in scatterwalk_page()
94 void scatterwalk_start(struct scatter_walk *walk, struct scatterlist *sg);
95 void scatterwalk_copychunks(void *buf, struct scatter_walk *walk,
97 void *scatterwalk_map(struct scatter_walk *walk);
98 void scatterwalk_done(struct scatter_walk *walk, int out, int more);