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| author | Dave Gordon <david.s.gordon@intel.com> | 2015-06-30 14:58:57 -0700 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2015-06-30 19:44:59 -0700 |
| commit | 386ecb1216f9e38947ce6a2af22e5e1e47256a97 (patch) | |
| tree | eeaa8bce553855a9ab106ef4a9166f1695835472 /lib/scatterlist.c | |
| parent | 2a1bf8f93b33992bb0457512b28d046e279bbd7e (diff) | |
| download | lwn-386ecb1216f9e38947ce6a2af22e5e1e47256a97.tar.gz lwn-386ecb1216f9e38947ce6a2af22e5e1e47256a97.zip | |
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 'lib/scatterlist.c')
| -rw-r--r-- | lib/scatterlist.c | 6 |
1 files changed, 3 insertions, 3 deletions
diff --git a/lib/scatterlist.c b/lib/scatterlist.c index 317b62c6da3c..d105a9f56878 100644 --- a/lib/scatterlist.c +++ b/lib/scatterlist.c @@ -650,9 +650,8 @@ EXPORT_SYMBOL(sg_miter_stop); * Returns the number of copied bytes. * **/ -static 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_buffer(struct scatterlist *sgl, unsigned int nents, void *buf, + size_t buflen, off_t skip, bool to_buffer) { unsigned int offset = 0; struct sg_mapping_iter miter; @@ -689,6 +688,7 @@ static size_t sg_copy_buffer(struct scatterlist *sgl, unsigned int nents, local_irq_restore(flags); return offset; } +EXPORT_SYMBOL(sg_copy_buffer); /** * sg_copy_from_buffer - Copy from a linear buffer to an SG list |