From 5f459f0adc7581da01cdd9b7f84db14a4559a390 Mon Sep 17 00:00:00 2001 From: Evgeniy Polyakov Date: Tue, 25 Nov 2008 23:17:10 +0800 Subject: [PATCH] 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: Evgeniy Polyakov Signed-off-by: Herbert Xu --- drivers/crypto/hifn_795x.c | 8 +++++--- 1 file changed, 5 insertions(+), 3 deletions(-) diff --git a/drivers/crypto/hifn_795x.c b/drivers/crypto/hifn_795x.c index ab4f94bec4ff..0c79fe7f1567 100644 --- a/drivers/crypto/hifn_795x.c +++ b/drivers/crypto/hifn_795x.c @@ -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); -- 2.30.2