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crypto: crypto4xx - replace crypto4xx_dev's scatter_buffer_size with constant

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scatter_buffer_size is always set to PPC4XX_SD_BUFFER_SIZE.
I don't think there's any point in keeping the variable
around.

Signed-off-by: Christian Lamparter <chunkeey@googlemail.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
This commit is contained in:
Christian Lamparter 2017-08-25 15:47:23 +02:00 committed by Herbert Xu
parent 5c727f92ea
commit 40e3b847bf
2 changed files with 3 additions and 5 deletions
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7
drivers/crypto/amcc/crypto4xx_core.c
View file

@ -394,10 +394,9 @@ static u32 crypto4xx_build_sdr(struct crypto4xx_device *dev)
if (!dev->sdr)
return -ENOMEM;
dev->scatter_buffer_size = PPC4XX_SD_BUFFER_SIZE;
dev->scatter_buffer_va =
dma_alloc_coherent(dev->core_dev->device,
dev->scatter_buffer_size * PPC4XX_NUM_SD,
PPC4XX_SD_BUFFER_SIZE * PPC4XX_NUM_SD,
&dev->scatter_buffer_pa, GFP_ATOMIC);
if (!dev->scatter_buffer_va) {
dma_free_coherent(dev->core_dev->device,
@ -410,7 +409,7 @@ static u32 crypto4xx_build_sdr(struct crypto4xx_device *dev)
for (i = 0; i < PPC4XX_NUM_SD; i++) {
sd_array[i].ptr = dev->scatter_buffer_pa +
dev->scatter_buffer_size * i;
PPC4XX_SD_BUFFER_SIZE * i;
}
return 0;
@ -425,7 +424,7 @@ static void crypto4xx_destroy_sdr(struct crypto4xx_device *dev)
if (dev->scatter_buffer_va != NULL)
dma_free_coherent(dev->core_dev->device,
dev->scatter_buffer_size * PPC4XX_NUM_SD,
PPC4XX_SD_BUFFER_SIZE * PPC4XX_NUM_SD,
dev->scatter_buffer_va,
dev->scatter_buffer_pa);
}

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

@ -87,7 +87,6 @@ struct crypto4xx_device {
program ce sdr_base_register */
void *scatter_buffer_va;
dma_addr_t scatter_buffer_pa;
u32 scatter_buffer_size;
void *shadow_sa_pool; /* pool of memory for sa in pd_uinfo */
dma_addr_t shadow_sa_pool_pa;