crypto: sun8i-ss - call finalize with bh disabled

[ Upstream commit b169b3766242b6f3336e24a6c8ee1522978b57a7 ]

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

Fixes: f08fcced6d00 ("crypto: allwinner - Add sun8i-ss cryptographic offloader")
Signed-off-by: Corentin Labbe <clabbe@baylibre.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Signed-off-by: Sasha Levin <sashal@kernel.org>

diff --git a/drivers/crypto/allwinner/sun8i-ss/sun8i-ss-cipher.c b/drivers/crypto/allwinner/sun8i-ss/sun8i-ss-cipher.c
index 9ef1c85c4aaa5590fe9c521db24ad1d4121d2f8f..554e400d41cad612f45f3864a7621757593254ef 100644 (file)
--- a/drivers/crypto/allwinner/sun8i-ss/sun8i-ss-cipher.c
+++ b/drivers/crypto/allwinner/sun8i-ss/sun8i-ss-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>
@@ -274,7 +275,9 @@ static int sun8i_ss_handle_cipher_request(struct crypto_engine *engine, void *ar
        struct skcipher_request *breq = container_of(areq, struct skcipher_request, base);
 
        err = sun8i_ss_cipher(breq);
+       local_bh_disable();
        crypto_finalize_skcipher_request(engine, breq, err);
+       local_bh_enable();
 
        return 0;
 }

diff --git a/drivers/crypto/allwinner/sun8i-ss/sun8i-ss-hash.c b/drivers/crypto/allwinner/sun8i-ss/sun8i-ss-hash.c
index 3c073eb3db038a148b304c73bcae0c1af108f398..1a71ed49d2333c09a88d04ab618f1a6dd86891be 100644 (file)
--- a/drivers/crypto/allwinner/sun8i-ss/sun8i-ss-hash.c
+++ b/drivers/crypto/allwinner/sun8i-ss/sun8i-ss-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>
@@ -442,6 +443,8 @@ int sun8i_ss_hash_run(struct crypto_engine *engine, void *breq)
 theend:
        kfree(pad);
        kfree(result);
+       local_bh_disable();
        crypto_finalize_hash_request(engine, breq, err);
+       local_bh_enable();
        return 0;
 }