[PATCH v3 0/4] introduce sg_pcopy_from_buffer() and sg_pcopy_to_buffer()

From: Akinobu Mita
Date: Sun Jun 23 2013 - 08:38:48 EST

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 v2
- Add Acked-by line
- Rename sg_miter_seek() to sg_miter_skip()
- Remove the restriction on when sg_miter_skip() can be called

* 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

Akinobu Mita (4):
lib/scatterlist: factor out sg_miter_get_next_page() from
lib/scatterlist: introduce sg_pcopy_from_buffer() and
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 <tj@xxxxxxxxxx>
Cc: Imre Deak <imre.deak@xxxxxxxxx>
Cc: Herbert Xu <herbert@xxxxxxxxxxxxxxxxxxx>
Cc: "David S. Miller" <davem@xxxxxxxxxxxxx>
Cc: linux-crypto@xxxxxxxxxxxxxxx
Cc: "James E.J. Bottomley" <JBottomley@xxxxxxxxxxxxx>
Cc: Douglas Gilbert <dgilbert@xxxxxxxxxxxx>
Cc: linux-scsi@xxxxxxxxxxxxxxx


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