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crypto: scatterwalk - remove obsolete functions 

Remove various functions that are no longer used.

Signed-off-by: Eric Biggers <ebiggers@google.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
pull/1188/head
Eric Biggers 2025-02-19 10:23:40 -08:00 committed by Herbert Xu
parent 95dbd711b1
commit fa94e45436
2 changed files with 0 additions and 62 deletions
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37
crypto/scatterwalk.c
View File

@ -30,43 +30,6 @@ void scatterwalk_skip(struct scatter_walk *walk, unsigned int nbytes)
} }
EXPORT_SYMBOL_GPL(scatterwalk_skip); EXPORT_SYMBOL_GPL(scatterwalk_skip);
static inline void memcpy_dir(void *buf, void *sgdata, size_t nbytes, int out)
{
void *src = out ? buf : sgdata;
void *dst = out ? sgdata : buf;
memcpy(dst, src, nbytes);
}
void scatterwalk_copychunks(void *buf, struct scatter_walk *walk,
size_t nbytes, int out)
{
for (;;) {
unsigned int len_this_page = scatterwalk_pagelen(walk);
u8 *vaddr;
if (len_this_page > nbytes)
len_this_page = nbytes;
if (out != 2) {
vaddr = scatterwalk_map(walk);
memcpy_dir(buf, vaddr, len_this_page, out);
scatterwalk_unmap(vaddr);
}
scatterwalk_advance(walk, len_this_page);
if (nbytes == len_this_page)
break;
buf += len_this_page;
nbytes -= len_this_page;
scatterwalk_pagedone(walk, out & 1, 1);
}
}
EXPORT_SYMBOL_GPL(scatterwalk_copychunks);
inline void memcpy_from_scatterwalk(void *buf, struct scatter_walk *walk, inline void memcpy_from_scatterwalk(void *buf, struct scatter_walk *walk,
unsigned int nbytes) unsigned int nbytes)
{ {

25
include/crypto/scatterwalk.h
View File

@ -115,28 +115,6 @@ static inline void *scatterwalk_next(struct scatter_walk *walk,
return scatterwalk_map(walk); return scatterwalk_map(walk);
} }
static inline void scatterwalk_pagedone(struct scatter_walk *walk, int out,
unsigned int more)
{
if (out) {
struct page *page;
page = sg_page(walk->sg) + ((walk->offset - 1) >> PAGE_SHIFT);
flush_dcache_page(page);
}
if (more && walk->offset >= walk->sg->offset + walk->sg->length)
scatterwalk_start(walk, sg_next(walk->sg));
}
static inline void scatterwalk_done(struct scatter_walk *walk, int out,
int more)
{
if (!more || walk->offset >= walk->sg->offset + walk->sg->length ||
!(walk->offset & (PAGE_SIZE - 1)))
scatterwalk_pagedone(walk, out, more);
}
static inline void scatterwalk_advance(struct scatter_walk *walk, static inline void scatterwalk_advance(struct scatter_walk *walk,
unsigned int nbytes) unsigned int nbytes)
{ {
@ -184,9 +162,6 @@ static inline void scatterwalk_done_dst(struct scatter_walk *walk,
void scatterwalk_skip(struct scatter_walk *walk, unsigned int nbytes); void scatterwalk_skip(struct scatter_walk *walk, unsigned int nbytes);
void scatterwalk_copychunks(void *buf, struct scatter_walk *walk,
size_t nbytes, int out);
void memcpy_from_scatterwalk(void *buf, struct scatter_walk *walk, void memcpy_from_scatterwalk(void *buf, struct scatter_walk *walk,
unsigned int nbytes); unsigned int nbytes);