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| author | Lionel Debieve <lionel.debieve@st.com> | 2018-01-29 15:28:10 +0100 |
|---|---|---|
| committer | Herbert Xu <herbert@gondor.apana.org.au> | 2018-02-15 16:26:55 +0100 |
| commit | ff1cae4e7f50e7d2da4343be4c0b411b5d564bc1 (patch) | |
| tree | 475c8261310fbd18b192f7bfb2708e51ffeaf2d1 /drivers/crypto/stm32/stm32-hash.c | |
| parent | crypto: stm32/hash - avoid error if maxburst not defined (diff) | |
| download | linux-ff1cae4e7f50e7d2da4343be4c0b411b5d564bc1.tar.xz linux-ff1cae4e7f50e7d2da4343be4c0b411b5d564bc1.zip | |
crypto: stm32/hash - fix performance issues
Fixing bugs link to stress tests. Bad results are
detected during testmgr selftests executing in a
faster environment. bufcnt value may be resetted and
false IT are sometimes detected.
Signed-off-by: Lionel Debieve <lionel.debieve@st.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Diffstat (limited to 'drivers/crypto/stm32/stm32-hash.c')
| -rw-r--r-- | drivers/crypto/stm32/stm32-hash.c | 8 |
1 files changed, 6 insertions, 2 deletions
diff --git a/drivers/crypto/stm32/stm32-hash.c b/drivers/crypto/stm32/stm32-hash.c index 37815aa7f5de..d540cdfaf993 100644 --- a/drivers/crypto/stm32/stm32-hash.c +++ b/drivers/crypto/stm32/stm32-hash.c @@ -744,13 +744,15 @@ static int stm32_hash_final_req(struct stm32_hash_dev *hdev) struct ahash_request *req = hdev->req; struct stm32_hash_request_ctx *rctx = ahash_request_ctx(req); int err; + int buflen = rctx->bufcnt; + + rctx->bufcnt = 0; if (!(rctx->flags & HASH_FLAGS_CPU)) err = stm32_hash_dma_send(hdev); else - err = stm32_hash_xmit_cpu(hdev, rctx->buffer, rctx->bufcnt, 1); + err = stm32_hash_xmit_cpu(hdev, rctx->buffer, buflen, 1); - rctx->bufcnt = 0; return err; } @@ -1105,6 +1107,8 @@ static irqreturn_t stm32_hash_irq_handler(int irq, void *dev_id) reg &= ~HASH_SR_OUTPUT_READY; stm32_hash_write(hdev, HASH_SR, reg); hdev->flags |= HASH_FLAGS_OUTPUT_READY; + /* Disable IT*/ + stm32_hash_write(hdev, HASH_IMR, 0); return IRQ_WAKE_THREAD; } |