[PATCH 2/5] crypto: sun8i-ce: call finalize with bh disabled

[Corentin Labbe]

Doing ipsec produces a spinlock recursion warning.
This is due to not disabling BH during crypto completion function.

Fixes: 06f751b61329 ("crypto: allwinner - Add sun8i-ce Crypto Engine")
Signed-off-by: Corentin Labbe <clabbe at baylibre.com>
---
 drivers/crypto/allwinner/sun8i-ce/sun8i-ce-cipher.c | 3 +++
 drivers/crypto/allwinner/sun8i-ce/sun8i-ce-hash.c   | 3 +++
 2 files changed, 6 insertions(+)

diff --git a/drivers/crypto/allwinner/sun8i-ce/sun8i-ce-cipher.c b/drivers/crypto/allwinner/sun8i-ce/sun8i-ce-cipher.c
index 7cc496c03084..0b1ce58bdeb9 100644
--- a/drivers/crypto/allwinner/sun8i-ce/sun8i-ce-cipher.c
+++ b/drivers/crypto/allwinner/sun8i-ce/sun8i-ce-cipher.c
@@ -11,6 +11,7 @@
  * You could find a link for the datasheet in Documentation/arm/sunxi.rst
  */
 
+#include <linux/bottom_half.h>
 #include <linux/crypto.h>
 #include <linux/dma-mapping.h>
 #include <linux/io.h>
@@ -272,7 +273,9 @@ static int sun8i_ce_cipher_run(struct crypto_engine *engine, void *areq)
 
 	flow = rctx->flow;
 	err = sun8i_ce_run_task(ce, flow, crypto_tfm_alg_name(breq->base.tfm));
+	local_bh_disable();
 	crypto_finalize_skcipher_request(engine, breq, err);
+	local_bh_enable();
 	return 0;
 }
 
diff --git a/drivers/crypto/allwinner/sun8i-ce/sun8i-ce-hash.c b/drivers/crypto/allwinner/sun8i-ce/sun8i-ce-hash.c
index fd7f1db863d9..5b6c51b78dde 100644
--- a/drivers/crypto/allwinner/sun8i-ce/sun8i-ce-hash.c
+++ b/drivers/crypto/allwinner/sun8i-ce/sun8i-ce-hash.c
@@ -9,6 +9,7 @@
  *
  * You could find the datasheet in Documentation/arm/sunxi.rst
  */
+#include <linux/bottom_half.h>
 #include <linux/dma-mapping.h>
 #include <linux/pm_runtime.h>
 #include <linux/scatterlist.h>
@@ -472,6 +473,8 @@ int sun8i_ce_hash_run(struct crypto_engine *engine, void *breq)
 theend:
 	kfree(buf);
 	kfree(result);
+	local_bh_disable();
 	crypto_finalize_hash_request(engine, breq, err);
+	local_bh_enable();
 	return 0;
 }
-- 
2.34.1