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[PATCH 3.10 19/35] crypto: ixp4xx - Remove bogus BUG_ON on scattered dst buffer

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  [PATCH 3.10 19/35] crypto: ixp4xx - Remove bogus BUG_ON on scattered dst buffer Greg Kroah-Hartman <gregkh@linuxfoundation.org> - 2015-08-14 19:50 +0200

#1207697 — [PATCH 3.10 19/35] crypto: ixp4xx - Remove bogus BUG_ON on scattered dst buffer

3.10-stable review patch.  If anyone has any objections, please let me know.

------------------

From: Herbert Xu <herbert@gondor.apana.org.au>

commit f898c522f0e9ac9f3177d0762b76e2ab2d2cf9c0 upstream.

This patch removes a bogus BUG_ON in the ablkcipher path that
triggers when the destination buffer is different from the source
buffer and is scattered.

Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

---
 drivers/crypto/ixp4xx_crypto.c |    1 -
 1 file changed, 1 deletion(-)

--- a/drivers/crypto/ixp4xx_crypto.c
+++ b/drivers/crypto/ixp4xx_crypto.c
@@ -915,7 +915,6 @@ static int ablk_perform(struct ablkciphe
 		crypt->mode |= NPE_OP_NOT_IN_PLACE;
 		/* This was never tested by Intel
 		 * for more than one dst buffer, I think. */
-		BUG_ON(req->dst->length < nbytes);
 		req_ctx->dst = NULL;
 		if (!chainup_buffers(dev, req->dst, nbytes, &dst_hook,
 					flags, DMA_FROM_DEVICE))


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