diff options
Diffstat (limited to 'drivers/crypto/allwinner/sun4i-ss')
| -rw-r--r-- | drivers/crypto/allwinner/sun4i-ss/sun4i-ss-cipher.c | 12 | ||||
| -rw-r--r-- | drivers/crypto/allwinner/sun4i-ss/sun4i-ss.h | 2 |
2 files changed, 6 insertions, 8 deletions
diff --git a/drivers/crypto/allwinner/sun4i-ss/sun4i-ss-cipher.c b/drivers/crypto/allwinner/sun4i-ss/sun4i-ss-cipher.c index b72de8939497..19f1aa577ed4 100644 --- a/drivers/crypto/allwinner/sun4i-ss/sun4i-ss-cipher.c +++ b/drivers/crypto/allwinner/sun4i-ss/sun4i-ss-cipher.c @@ -233,8 +233,6 @@ static int sun4i_ss_cipher_poll(struct skcipher_request *areq) while (oleft) { if (ileft) { - char buf[4 * SS_RX_MAX];/* buffer for linearize SG src */ - /* * todo is the number of consecutive 4byte word that we * can read from current SG @@ -256,12 +254,12 @@ static int sun4i_ss_cipher_poll(struct skcipher_request *areq) */ todo = min(rx_cnt * 4 - ob, ileft); todo = min_t(size_t, todo, mi.length - oi); - memcpy(buf + ob, mi.addr + oi, todo); + memcpy(ss->buf + ob, mi.addr + oi, todo); ileft -= todo; oi += todo; ob += todo; if (!(ob % 4)) { - writesl(ss->base + SS_RXFIFO, buf, + writesl(ss->base + SS_RXFIFO, ss->buf, ob / 4); ob = 0; } @@ -295,13 +293,11 @@ static int sun4i_ss_cipher_poll(struct skcipher_request *areq) oo = 0; } } else { - char bufo[4 * SS_TX_MAX]; /* buffer for linearize SG dst */ - /* * read obl bytes in bufo, we read at maximum for * emptying the device */ - readsl(ss->base + SS_TXFIFO, bufo, tx_cnt); + readsl(ss->base + SS_TXFIFO, ss->bufo, tx_cnt); obl = tx_cnt * 4; obo = 0; do { @@ -313,7 +309,7 @@ static int sun4i_ss_cipher_poll(struct skcipher_request *areq) */ todo = min_t(size_t, mo.length - oo, obl - obo); - memcpy(mo.addr + oo, bufo + obo, todo); + memcpy(mo.addr + oo, ss->bufo + obo, todo); oleft -= todo; obo += todo; oo += todo; diff --git a/drivers/crypto/allwinner/sun4i-ss/sun4i-ss.h b/drivers/crypto/allwinner/sun4i-ss/sun4i-ss.h index 5c291e4a6857..c242fccb2ab6 100644 --- a/drivers/crypto/allwinner/sun4i-ss/sun4i-ss.h +++ b/drivers/crypto/allwinner/sun4i-ss/sun4i-ss.h @@ -148,6 +148,8 @@ struct sun4i_ss_ctx { struct reset_control *reset; struct device *dev; struct resource *res; + char buf[4 * SS_RX_MAX];/* buffer for linearize SG src */ + char bufo[4 * SS_TX_MAX]; /* buffer for linearize SG dst */ spinlock_t slock; /* control the use of the device */ #ifdef CONFIG_CRYPTO_DEV_SUN4I_SS_PRNG u32 seed[SS_SEED_LEN / BITS_PER_LONG]; |