Commit 5f459f0a authored by Evgeniy Polyakov's avatar Evgeniy Polyakov Committed by Herbert Xu
Browse files

crypto: hifn_795x - Use softirq kernel mapping in bh context 



Use KM_SOFTIRQ instead of KM_IRQ in tasklet context.
Added bug_on on input no-page condition.

Signed-off-by: default avatarEvgeniy Polyakov <zbr@ioremap.net>
Signed-off-by: default avatarHerbert Xu <herbert@gondor.apana.org.au>
parent d6a10c84

drivers/crypto/hifn_795x.c

+5 −3
Original line number Diff line number Diff line
@@ -1393,10 +1393,12 @@ static int hifn_setup_dma(struct hifn_device *dev, 
	n = nbytes;

	while (n) {

		if (t->length && rctx->walk.flags & ASYNC_FLAGS_MISALIGNED) {

			BUG_ON(!sg_page(t));

			dpage = sg_page(t);

			doff = 0;

			len = t->length;

		} else {

			BUG_ON(!sg_page(dst));

			dpage = sg_page(dst);

			doff = dst->offset;

			len = dst->length;
@@ -1791,17 +1793,17 @@ static void hifn_process_ready(struct ablkcipher_request *req, int error) 
				continue;

			}



			saddr = kmap_atomic(sg_page(t), KM_IRQ1);

			saddr = kmap_atomic(sg_page(t), KM_SOFTIRQ0);



			err = ablkcipher_get(saddr, &t->length, t->offset,

					dst, nbytes, &nbytes);

			if (err < 0) {

				kunmap_atomic(saddr, KM_IRQ1);

				kunmap_atomic(saddr, KM_SOFTIRQ0);

				break;

			}



			idx += err;

			kunmap_atomic(saddr, KM_IRQ1);

			kunmap_atomic(saddr, KM_SOFTIRQ0);

		}



		ablkcipher_walk_exit(&rctx->walk);

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