diff options
Diffstat (limited to 'drivers/crypto/omap-sham.c')
| -rw-r--r-- | drivers/crypto/omap-sham.c | 8 |
1 files changed, 5 insertions, 3 deletions
diff --git a/drivers/crypto/omap-sham.c b/drivers/crypto/omap-sham.c index 855898977d38..5c95bf97c132 100644 --- a/drivers/crypto/omap-sham.c +++ b/drivers/crypto/omap-sham.c @@ -137,6 +137,7 @@ #define OMAP_ALIGNED __attribute__((aligned(sizeof(u32)))) #define BUFLEN PAGE_SIZE +#define OMAP_SHA_DMA_THRESHOLD 256 struct omap_sham_dev; @@ -1435,10 +1436,11 @@ static int omap_sham_final(struct ahash_request *req) /* * OMAP HW accel works only with buffers >= 9. * HMAC is always >= 9 because ipad == block size. - * If buffersize is less than 240, we use fallback SW encoding, - * as using DMA + HW in this case doesn't provide any benefit. + * If buffersize is less than DMA_THRESHOLD, we use fallback + * SW encoding, as using DMA + HW in this case doesn't provide + * any benefit. */ - if (!ctx->digcnt && ctx->bufcnt < 240) + if (!ctx->digcnt && ctx->bufcnt < OMAP_SHA_DMA_THRESHOLD) return omap_sham_final_shash(req); else if (ctx->bufcnt) return omap_sham_enqueue(req, OP_FINAL); |