66 static inline unsigned int scatterwalk_pagelen(struct scatter_walk *walk)  in scatterwalk_pagelen()  argument
68 	unsigned int len = walk->sg->offset + walk->sg->length - walk->offset;  in scatterwalk_pagelen()
69 	unsigned int len_this_page = offset_in_page(~walk->offset) + 1;  in scatterwalk_pagelen()
73 static inline unsigned int scatterwalk_clamp(struct scatter_walk *walk,  in scatterwalk_clamp()  argument
76 	unsigned int len_this_page = scatterwalk_pagelen(walk);  in scatterwalk_clamp()
80 static inline void scatterwalk_advance(struct scatter_walk *walk,  in scatterwalk_advance()  argument
83 	walk->offset += nbytes;  in scatterwalk_advance()
86 static inline unsigned int scatterwalk_aligned(struct scatter_walk *walk,  in scatterwalk_aligned()  argument
89 	return !(walk->offset & alignmask);  in scatterwalk_aligned()
92 static inline struct page *scatterwalk_page(struct scatter_walk *walk)  in scatterwalk_page()  argument
94 	return sg_page(walk->sg) + (walk->offset >> PAGE_SHIFT);  in scatterwalk_page()
102 void scatterwalk_start(struct scatter_walk *walk, struct scatterlist *sg);
103 void scatterwalk_copychunks(void *buf, struct scatter_walk *walk,
105 void *scatterwalk_map(struct scatter_walk *walk);
106 void scatterwalk_done(struct scatter_walk *walk, int out, int more);