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authorDave Gordon <david.s.gordon@intel.com>2015-06-30 14:58:57 -0700
committerLinus Torvalds <torvalds@linux-foundation.org>2015-06-30 19:44:59 -0700
commit386ecb1216f9e38947ce6a2af22e5e1e47256a97 (patch)
treeeeaa8bce553855a9ab106ef4a9166f1695835472 /include
parent2a1bf8f93b33992bb0457512b28d046e279bbd7e (diff)
drivers/scsi/scsi_debug.c: resolve sg buffer const-ness issue
do_device_access() takes a separate parameter to indicate the direction of data transfer, which it used to use to select the appropriate function out of sg_pcopy_{to,from}_buffer(). However these two functions now have So this patch makes it bypass these wrappers and call the underlying function sg_copy_buffer() directly; this has the same calling style as do_device_access() i.e. a separate direction-of-transfer parameter and no pointers-to-const, so skipping the wrappers not only eliminates the warning, it also make the code simpler :) [akpm@linux-foundation.org: fix very broken build] Signed-off-by: Dave Gordon <david.s.gordon@intel.com> Acked-by: Arnd Bergmann <arnd@arndb.de> Cc: James Bottomley <James.Bottomley@HansenPartnership.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'include')
-rw-r--r--include/linux/scatterlist.h3
1 files changed, 3 insertions, 0 deletions
diff --git a/include/linux/scatterlist.h b/include/linux/scatterlist.h
index 505d0481df1e..9b1ef0c820a7 100644
--- a/include/linux/scatterlist.h
+++ b/include/linux/scatterlist.h
@@ -265,6 +265,9 @@ int sg_alloc_table_from_pages(struct sg_table *sgt,
unsigned long offset, unsigned long size,
gfp_t gfp_mask);
+size_t sg_copy_buffer(struct scatterlist *sgl, unsigned int nents, void *buf,
+ size_t buflen, off_t skip, bool to_buffer);
+
size_t sg_copy_from_buffer(struct scatterlist *sgl, unsigned int nents,
const void *buf, size_t buflen);
size_t sg_copy_to_buffer(struct scatterlist *sgl, unsigned int nents,