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 <zbr@ioremap.net>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
diff --git a/drivers/crypto/hifn_795x.c b/drivers/crypto/hifn_795x.c
index ab4f94b..0c79fe7 100644
--- a/drivers/crypto/hifn_795x.c
+++ b/drivers/crypto/hifn_795x.c
@@ -1393,10 +1393,12 @@
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 @@
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);