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| author | Ming Lei <ming.lei@canonical.com> | 2013-11-26 05:43:37 +0100 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2013-12-09 02:56:37 +0100 |
| commit | 0d6077f8b48ed2dce8f2466a76c0d574a3b4dbe9 (patch) | |
| tree | 2cee9d850ad7bf0ee2e933ed7259a9267fe7aafa /lib/scatterlist.c | |
| parent | usb: wusbcore: return -ENOENT for unlinked URBs. (diff) | |
| download | linux-0d6077f8b48ed2dce8f2466a76c0d574a3b4dbe9.tar.xz linux-0d6077f8b48ed2dce8f2466a76c0d574a3b4dbe9.zip | |
lib/scatterlist: export sg_miter_skip()
sg_copy_buffer() can't meet demand for some drrivers(such usb
mass storage), so we have to use the sg_miter_* APIs to access
sg buffer, then need export sg_miter_skip() for these drivers.
The API is needed for converting to sg_miter_* APIs in USB storage
driver for accessing sg buffer.
Acked-by: Andrew Morton <akpm@linux-foundation.org>
Cc: FUJITA Tomonori <fujita.tomonori@lab.ntt.co.jp>
Cc: Jens Axboe <axboe@kernel.dk>
Signed-off-by: Ming Lei <ming.lei@canonical.com>
Reviewed-by: Tejun Heo <tj@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'lib/scatterlist.c')
| -rw-r--r-- | lib/scatterlist.c | 3 |
1 files changed, 2 insertions, 1 deletions
diff --git a/lib/scatterlist.c b/lib/scatterlist.c index d16fa295ae1d..3a8e8e8fb2a5 100644 --- a/lib/scatterlist.c +++ b/lib/scatterlist.c @@ -495,7 +495,7 @@ static bool sg_miter_get_next_page(struct sg_mapping_iter *miter) * true if @miter contains the valid mapping. false if end of sg * list is reached. */ -static bool sg_miter_skip(struct sg_mapping_iter *miter, off_t offset) +bool sg_miter_skip(struct sg_mapping_iter *miter, off_t offset) { sg_miter_stop(miter); @@ -513,6 +513,7 @@ static bool sg_miter_skip(struct sg_mapping_iter *miter, off_t offset) return true; } +EXPORT_SYMBOL(sg_miter_skip); /** * sg_miter_next - proceed mapping iterator to the next mapping |