This patch set introduces sg_pcopy_from_buffer() and sg_pcopy_to_buffer(),
which copy data between a linear buffer and an SG list.
The only difference between sg_pcopy_{from,to}_buffer() and
sg_copy_{from,to}_buffer() is an additional argument that specifies
the number of bytes to skip the SG list before copying.
The main reason for introducing these functions is to fix a problem
in scsi_debug module. And there is a local function in crypto/talitos
module, which can be replaced by sg_pcopy_to_buffer().
* Changes from v1
- Separate the change that factors out sg_miter_get_next_page() from
the patch "introduce sg_pcopy_from_buffer() and sg_pcopy_to_buffer()"
- Add function comment for internal function sg_miter_seek()
- Simplify the assignment of sdb->resid in fill_from_dev_buffer() in
scsi_debug
Akinobu Mita (4):
lib/scatterlist: factor out sg_miter_get_next_page() from
sg_miter_next()
lib/scatterlist: introduce sg_pcopy_from_buffer() and
sg_pcopy_to_buffer()
crypto: talitos: use sg_pcopy_to_buffer()
scsi_debug: fix do_device_access() with wrap around range
drivers/crypto/talitos.c | 60 +--------------------
drivers/scsi/scsi_debug.c | 48 +++++++++++++----
include/linux/scatterlist.h | 5 ++
lib/scatterlist.c | 127 +++++++++++++++++++++++++++++++++++++-------
4 files changed, 150 insertions(+), 90 deletions(-)
Cc: Tejun Heo <t...@kernel.org>
Cc: Imre Deak <imre.d...@intel.com>
Cc: Herbert Xu <herb...@gondor.apana.org.au>
Cc: "David S. Miller" <da...@davemloft.net>
Cc: linux-cry...@vger.kernel.org
Cc: "James E.J. Bottomley" <jbottom...@parallels.com>
Cc: Douglas Gilbert <dgilb...@interlog.com>
Cc: linux-scsi@vger.kernel.org
--
1.8.1.4
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