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Subject[PATCH 0/3] introduce sg_pcopy_from_buffer() and sg_pcopy_to_buffer()
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
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 <>
Cc: Imre Deak <>
Cc: Herbert Xu <>
Cc: "David S. Miller" <>
Cc: "James E.J. Bottomley" <>
Cc: Douglas Gilbert <>


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