target/linux/apm821xx/patches-4.14/020-0010-crypto-crypto4xx-replace-crypto4xx_dev-s-scatter_buf.patch

   1 From 40e3b847bff70edc28c5290d209e531da6f9e534 Mon Sep 17 00:00:00 2001
   2 From: Christian Lamparter <chunkeey@googlemail.com>
   3 Date: Fri, 25 Aug 2017 15:47:23 +0200
   4 Subject: [PATCH 10/25] crypto: crypto4xx - replace crypto4xx_dev's
   5  scatter_buffer_size with constant
   6
   7 scatter_buffer_size is always set to PPC4XX_SD_BUFFER_SIZE.
   8 I don't think there's any point in keeping the variable
   9 around.
  10
  11 Signed-off-by: Christian Lamparter <chunkeey@googlemail.com>
  12 Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
  13 ---
  14  drivers/crypto/amcc/crypto4xx_core.c | 7 +++----
  15  drivers/crypto/amcc/crypto4xx_core.h | 1 -
  16  2 files changed, 3 insertions(+), 5 deletions(-)
  17
  18 --- a/drivers/crypto/amcc/crypto4xx_core.c
  19 +++ b/drivers/crypto/amcc/crypto4xx_core.c
  20 @@ -396,10 +396,9 @@ static u32 crypto4xx_build_sdr(struct cr
  21         if (!dev->sdr)
  22                 return -ENOMEM;
  23
  24 -       dev->scatter_buffer_size = PPC4XX_SD_BUFFER_SIZE;
  25         dev->scatter_buffer_va =
  26                 dma_alloc_coherent(dev->core_dev->device,
  27 -                       dev->scatter_buffer_size * PPC4XX_NUM_SD,
  28 +                       PPC4XX_SD_BUFFER_SIZE * PPC4XX_NUM_SD,
  29                         &dev->scatter_buffer_pa, GFP_ATOMIC);
  30         if (!dev->scatter_buffer_va) {
  31                 dma_free_coherent(dev->core_dev->device,
  32 @@ -412,7 +411,7 @@ static u32 crypto4xx_build_sdr(struct cr
  33
  34         for (i = 0; i < PPC4XX_NUM_SD; i++) {
  35                 sd_array[i].ptr = dev->scatter_buffer_pa +
  36 -                                 dev->scatter_buffer_size * i;
  37 +                                 PPC4XX_SD_BUFFER_SIZE * i;
  38         }
  39
  40         return 0;
  41 @@ -427,7 +426,7 @@ static void crypto4xx_destroy_sdr(struct
  42
  43         if (dev->scatter_buffer_va)
  44                 dma_free_coherent(dev->core_dev->device,
  45 -                                 dev->scatter_buffer_size * PPC4XX_NUM_SD,
  46 +                                 PPC4XX_SD_BUFFER_SIZE * PPC4XX_NUM_SD,
  47                                   dev->scatter_buffer_va,
  48                                   dev->scatter_buffer_pa);
  49  }
  50 --- a/drivers/crypto/amcc/crypto4xx_core.h
  51 +++ b/drivers/crypto/amcc/crypto4xx_core.h
  52 @@ -87,7 +87,6 @@ struct crypto4xx_device {
  53                                         program ce sdr_base_register */
  54         void *scatter_buffer_va;
  55         dma_addr_t scatter_buffer_pa;
  56 -       u32 scatter_buffer_size;
  57
  58         void *shadow_sa_pool;           /* pool of memory for sa in pd_uinfo */
  59         dma_addr_t shadow_sa_pool_pa;