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().

Akinobu Mita (3):
  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   |  43 ++++++++++++++---
 include/linux/scatterlist.h |   5 ++
 lib/scatterlist.c           | 109 ++++++++++++++++++++++++++++++++++++--------
 4 files changed, 131 insertions(+), 86 deletions(-)

Cc: Tejun Heo <tj@kernel.org>
Cc: Imre Deak <redacted>
Cc: Herbert Xu <herbert@gondor.apana.org.au>
Cc: "David S. Miller" <davem@davemloft.net>
Cc: linux-crypto@vger.kernel.org
Cc: "James E.J. Bottomley" <redacted>
Cc: Douglas Gilbert <dgilbert@interlog.com>
Cc: linux-scsi@vger.kernel.org

-- 
1.8.1.4