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staging: ccree: fix buffer copy 

Fix a bug where the copying of scatterlist buffers incorrectly
ignored bytes to skip in a scatterlist and ended 1 byte short.

This fixes testmgr hmac and hash test failures currently obscured
by hash import/export not being supported.

Fixes: abefd6741d ("staging: ccree: introduce CryptoCell HW driver").

Signed-off-by: Gilad Ben-Yossef <gilad@benyossef.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Gilad Ben-Yossef 2017-06-06 11:00:45 +03:00 committed by Greg Kroah-Hartman
parent 0a33252e06
commit 26f4b1f7a8
1 changed files with 2 additions and 1 deletions
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3
drivers/staging/ccree/ssi_buffer_mgr.c
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@ -216,7 +216,8 @@ void ssi_buffer_mgr_copy_scatterlist_portion(
uint32_t nents, lbytes;
nents = ssi_buffer_mgr_get_sgl_nents(sg, end, &lbytes, NULL);
sg_copy_buffer(sg, nents, (void *)dest, (end - to_skip), 0, (direct == SSI_SG_TO_BUF));
sg_copy_buffer(sg, nents, (void *)dest, (end - to_skip + 1), to_skip,
(direct == SSI_SG_TO_BUF));
}
static inline int ssi_buffer_mgr_render_buff_to_mlli(