summaryrefslogtreecommitdiff
path: root/crypto/scatterwalk.c
diff options
context:
space:
mode:
authorHerbert Xu <herbert@gondor.apana.org.au>2016-07-12 08:18:00 +0300
committerHerbert Xu <herbert@gondor.apana.org.au>2016-07-18 12:35:50 +0300
commitac02725812cb3a814cfe1fdc2a8a59db073e7e66 (patch)
tree5480b15a94af14bd105e3981ece6a12898faeb14 /crypto/scatterwalk.c
parent2ee732d57496b8365819dfb958bc1ff04fcd4cac (diff)
downloadlinux-ac02725812cb3a814cfe1fdc2a8a59db073e7e66.tar.xz
crypto: scatterwalk - Inline start/map/done
This patch inlines the functions scatterwalk_start, scatterwalk_map and scatterwalk_done as they're all tiny and mostly used by the block cipher walker. Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Diffstat (limited to 'crypto/scatterwalk.c')
-rw-r--r--crypto/scatterwalk.c43
1 files changed, 0 insertions, 43 deletions
diff --git a/crypto/scatterwalk.c b/crypto/scatterwalk.c
index ddffbb3ee712..52ce17a3dd63 100644
--- a/crypto/scatterwalk.c
+++ b/crypto/scatterwalk.c
@@ -18,8 +18,6 @@
#include <linux/kernel.h>
#include <linux/mm.h>
#include <linux/module.h>
-#include <linux/pagemap.h>
-#include <linux/highmem.h>
#include <linux/scatterlist.h>
static inline void memcpy_dir(void *buf, void *sgdata, size_t nbytes, int out)
@@ -30,47 +28,6 @@ static inline void memcpy_dir(void *buf, void *sgdata, size_t nbytes, int out)
memcpy(dst, src, nbytes);
}
-void scatterwalk_start(struct scatter_walk *walk, struct scatterlist *sg)
-{
- walk->sg = sg;
- walk->offset = sg->offset;
-}
-EXPORT_SYMBOL_GPL(scatterwalk_start);
-
-void *scatterwalk_map(struct scatter_walk *walk)
-{
- return kmap_atomic(scatterwalk_page(walk)) +
- offset_in_page(walk->offset);
-}
-EXPORT_SYMBOL_GPL(scatterwalk_map);
-
-static 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);
- /* Test ARCH_IMPLEMENTS_FLUSH_DCACHE_PAGE first as
- * PageSlab cannot be optimised away per se due to
- * use of volatile pointer.
- */
- if (ARCH_IMPLEMENTS_FLUSH_DCACHE_PAGE && !PageSlab(page))
- flush_dcache_page(page);
- }
-
- if (more && walk->offset >= walk->sg->offset + walk->sg->length)
- scatterwalk_start(walk, sg_next(walk->sg));
-}
-
-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);
-}
-EXPORT_SYMBOL_GPL(scatterwalk_done);
-
void scatterwalk_copychunks(void *buf, struct scatter_walk *walk,
size_t nbytes, int out)
{