summaryrefslogtreecommitdiff
path: root/drivers/crypto/allwinner
diff options
context:
space:
mode:
authorHerbert Xu <herbert@gondor.apana.org.au>2020-09-08 15:00:36 +1000
committerHerbert Xu <herbert@gondor.apana.org.au>2020-09-18 17:20:10 +1000
commit9b20cbf8ebf072ef7ef603c139c004904b2ddd52 (patch)
tree27eda969a79a04189abd712f732b6e35542b7a34 /drivers/crypto/allwinner
parent2ca73193ccab4f02ffde11f3f0a3185fbd1c50b3 (diff)
crypto: sun4i-ss - Fix sparse endianness markers
This patch also fixes the incorrect endianness markings in the sun4i-ss driver. It should have no effect in the genereated code. Instead of using cpu_to_Xe32 followed by a memcpy, this patch converts the final hash write to use put_unaligned_X instead. Reported-by: kernel test robot <lkp@intel.com> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au> Tested-by: Corentin Labbe <clabbe.montjoie@gmail.com> Acked-by: Corentin Labbe <clabbe.montjoie@gmail.com> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Diffstat (limited to 'drivers/crypto/allwinner')
-rw-r--r--drivers/crypto/allwinner/sun4i-ss/sun4i-ss-hash.c17
1 files changed, 9 insertions, 8 deletions
diff --git a/drivers/crypto/allwinner/sun4i-ss/sun4i-ss-hash.c b/drivers/crypto/allwinner/sun4i-ss/sun4i-ss-hash.c
index dc35edd90034..1dff48558f53 100644
--- a/drivers/crypto/allwinner/sun4i-ss/sun4i-ss-hash.c
+++ b/drivers/crypto/allwinner/sun4i-ss/sun4i-ss-hash.c
@@ -9,6 +9,7 @@
* You could find the datasheet in Documentation/arm/sunxi.rst
*/
#include "sun4i-ss.h"
+#include <asm/unaligned.h>
#include <linux/scatterlist.h>
/* This is a totally arbitrary value */
@@ -196,7 +197,7 @@ static int sun4i_hash(struct ahash_request *areq)
struct sg_mapping_iter mi;
int in_r, err = 0;
size_t copied = 0;
- __le32 wb = 0;
+ u32 wb = 0;
dev_dbg(ss->dev, "%s %s bc=%llu len=%u mode=%x wl=%u h0=%0x",
__func__, crypto_tfm_alg_name(areq->base.tfm),
@@ -408,7 +409,7 @@ hash_final:
nbw = op->len - 4 * nwait;
if (nbw) {
- wb = cpu_to_le32(*(u32 *)(op->buf + nwait * 4));
+ wb = le32_to_cpup((__le32 *)(op->buf + nwait * 4));
wb &= GENMASK((nbw * 8) - 1, 0);
op->byte_count += nbw;
@@ -417,7 +418,7 @@ hash_final:
/* write the remaining bytes of the nbw buffer */
wb |= ((1 << 7) << (nbw * 8));
- bf[j++] = le32_to_cpu(wb);
+ ((__le32 *)bf)[j++] = cpu_to_le32(wb);
/*
* number of space to pad to obtain 64o minus 8(size) minus 4 (final 1)
@@ -479,16 +480,16 @@ hash_final:
/* Get the hash from the device */
if (op->mode == SS_OP_SHA1) {
for (i = 0; i < 5; i++) {
+ v = readl(ss->base + SS_MD0 + i * 4);
if (ss->variant->sha1_in_be)
- v = cpu_to_le32(readl(ss->base + SS_MD0 + i * 4));
+ put_unaligned_le32(v, areq->result + i * 4);
else
- v = cpu_to_be32(readl(ss->base + SS_MD0 + i * 4));
- memcpy(areq->result + i * 4, &v, 4);
+ put_unaligned_be32(v, areq->result + i * 4);
}
} else {
for (i = 0; i < 4; i++) {
- v = cpu_to_le32(readl(ss->base + SS_MD0 + i * 4));
- memcpy(areq->result + i * 4, &v, 4);
+ v = readl(ss->base + SS_MD0 + i * 4);
+ put_unaligned_le32(v, areq->result + i * 4);
}
}