2010-04-08 16:26:50

by Uri Simchoni

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Subject: [PATCHv2 3/10] crypto mv_cesa : Fix situation where the dest sglist is organized differently than the source sglist

Bugfix for situations where the destination scatterlist has a different
buffer structure than the source scatterlist (e.g. source has one 2K
buffer and dest has 2 1K buffers)

Signed-off-by: Uri Simchoni <[email protected]>
---
diff -upr linux-2.6.32.8_p2/drivers/crypto/mv_cesa.c linux-2.6.32.8_p3/drivers/crypto/mv_cesa.c
--- linux-2.6.32.8_p2/drivers/crypto/mv_cesa.c 2010-03-16 09:04:01.860953458 +0200
+++ linux-2.6.32.8_p3/drivers/crypto/mv_cesa.c 2010-03-16 09:06:10.183753278 +0200
@@ -242,6 +242,8 @@ static void dequeue_complete_req(void)
struct ablkcipher_request *req = cpg->cur_req;
void *buf;
int ret;
+ int need_copy_len = cpg->p.crypt_len;
+ int sram_offset = 0;

cpg->p.total_req_bytes += cpg->p.crypt_len;
do {
@@ -257,14 +259,16 @@ static void dequeue_complete_req(void)
buf = cpg->p.dst_sg_it.addr;
buf += cpg->p.dst_start;

- dst_copy = min(cpg->p.crypt_len, cpg->p.sg_dst_left);