target/linux/apm821xx/patches-4.19/023-0012-crypto-crypto4xx-get-rid-of-redundant-using_sd-varia.patch

   1 From 38cf5533d7a876f75088bacc1277046f30005f28 Mon Sep 17 00:00:00 2001
   2 From: Christian Lamparter <chunkeey@gmail.com>
   3 Date: Mon, 22 Apr 2019 13:26:01 +0200
   4 Subject: [PATCH 12/15] crypto: crypto4xx - get rid of redundant using_sd
   5  variable
   6
   7 using_sd is used as a stand-in for sa_command_0.bf.scatter
   8 that we need to set anyway, so we might as well just prevent
   9 double-accounting.
  10
  11 Signed-off-by: Christian Lamparter <chunkeey@gmail.com>
  12 Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
  13 ---
  14  drivers/crypto/amcc/crypto4xx_core.c | 6 ++----
  15  drivers/crypto/amcc/crypto4xx_core.h | 1 -
  16  2 files changed, 2 insertions(+), 5 deletions(-)
  17
  18 --- a/drivers/crypto/amcc/crypto4xx_core.c
  19 +++ b/drivers/crypto/amcc/crypto4xx_core.c
  20 @@ -539,7 +539,7 @@ static void crypto4xx_cipher_done(struct
  21
  22         req = skcipher_request_cast(pd_uinfo->async_req);
  23
  24 -       if (pd_uinfo->using_sd) {
  25 +       if (pd_uinfo->sa_va->sa_command_0.bf.scatter) {
  26                 crypto4xx_copy_pkt_to_dst(dev, pd, pd_uinfo,
  27                                           req->cryptlen, req->dst);
  28         } else {
  29 @@ -593,7 +593,7 @@ static void crypto4xx_aead_done(struct c
  30         u32 icv[AES_BLOCK_SIZE];
  31         int err = 0;
  32
  33 -       if (pd_uinfo->using_sd) {
  34 +       if (pd_uinfo->sa_va->sa_command_0.bf.scatter) {
  35                 crypto4xx_copy_pkt_to_dst(dev, pd, pd_uinfo,
  36                                           pd->pd_ctl_len.bf.pkt_len,
  37                                           dst);
  38 @@ -887,7 +887,6 @@ int crypto4xx_build_pd(struct crypto_asy
  39                  * we know application give us dst a whole piece of memory
  40                  * no need to use scatter ring.
  41                  */
  42 -               pd_uinfo->using_sd = 0;
  43                 pd_uinfo->first_sd = 0xffffffff;
  44                 sa->sa_command_0.bf.scatter = 0;
  45                 pd->dest = (u32)dma_map_page(dev->core_dev->device,
  46 @@ -901,7 +900,6 @@ int crypto4xx_build_pd(struct crypto_asy
  47                 u32 sd_idx = fst_sd;
  48                 nbytes = datalen;
  49                 sa->sa_command_0.bf.scatter = 1;
  50 -               pd_uinfo->using_sd = 1;
  51                 pd_uinfo->first_sd = fst_sd;
  52                 sd = crypto4xx_get_sdp(dev, &sd_dma, sd_idx);
  53                 pd->dest = sd_dma;
  54 --- a/drivers/crypto/amcc/crypto4xx_core.h
  55 +++ b/drivers/crypto/amcc/crypto4xx_core.h
  56 @@ -64,7 +64,6 @@ union shadow_sa_buf {
  57  struct pd_uinfo {
  58         struct crypto4xx_device *dev;
  59         u32   state;
  60 -       u32 using_sd;
  61         u32 first_gd;           /* first gather discriptor
  62                                 used by this packet */
  63         u32 num_gd;             /* number of gather discriptor