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crypto: crypto4xx - get rid of redundant using_sd variable

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using_sd is used as a stand-in for sa_command_0.bf.scatter
that we need to set anyway, so we might as well just prevent
double-accounting.

Signed-off-by: Christian Lamparter <chunkeey@gmail.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
This commit is contained in:
Christian Lamparter 2019-04-22 13:26:01 +02:00 committed by Herbert Xu
parent 9848e4c873
commit 38cf5533d7
2 changed files with 2 additions and 5 deletions
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6
drivers/crypto/amcc/crypto4xx_core.c
View File

@ -539,7 +539,7 @@ static void crypto4xx_cipher_done(struct crypto4xx_device *dev,
req = skcipher_request_cast(pd_uinfo->async_req);
if (pd_uinfo->using_sd) {
if (pd_uinfo->sa_va->sa_command_0.bf.scatter) {
crypto4xx_copy_pkt_to_dst(dev, pd, pd_uinfo,
req->cryptlen, req->dst);
} else {
@ -593,7 +593,7 @@ static void crypto4xx_aead_done(struct crypto4xx_device *dev,
u32 icv[AES_BLOCK_SIZE];
int err = 0;
if (pd_uinfo->using_sd) {
if (pd_uinfo->sa_va->sa_command_0.bf.scatter) {
crypto4xx_copy_pkt_to_dst(dev, pd, pd_uinfo,
pd->pd_ctl_len.bf.pkt_len,
dst);
@ -887,7 +887,6 @@ int crypto4xx_build_pd(struct crypto_async_request *req,
* we know application give us dst a whole piece of memory
* no need to use scatter ring.
*/
pd_uinfo->using_sd = 0;
pd_uinfo->first_sd = 0xffffffff;
sa->sa_command_0.bf.scatter = 0;
pd->dest = (u32)dma_map_page(dev->core_dev->device,
@ -901,7 +900,6 @@ int crypto4xx_build_pd(struct crypto_async_request *req,
u32 sd_idx = fst_sd;
nbytes = datalen;
sa->sa_command_0.bf.scatter = 1;
pd_uinfo->using_sd = 1;
pd_uinfo->first_sd = fst_sd;
sd = crypto4xx_get_sdp(dev, &sd_dma, sd_idx);
pd->dest = sd_dma;

1
drivers/crypto/amcc/crypto4xx_core.h
View File

@ -64,7 +64,6 @@ union shadow_sa_buf {
struct pd_uinfo {
struct crypto4xx_device *dev;
u32 state;
u32 using_sd;
u32 first_gd; /* first gather discriptor
used by this packet */
u32 num_gd; /* number of gather discriptor