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[1/1] crypto: stm32/hash - Fix self test issue during export

Message ID 1554709318-25389-1-git-send-email-lionel.debieve@st.com
State Accepted
Commit a88be9a7558ae51c3c0782bd5ab4340bb3822105
Headers show
Series [1/1] crypto: stm32/hash - Fix self test issue during export | expand

Commit Message

Lionel Debieve April 8, 2019, 7:41 a.m. UTC
Change the wait condition to check if the hash is busy.
Context can be saved as soon as hash has finishing processing
data. Remove unused lock in the device structure.

Signed-off-by: Lionel Debieve <lionel.debieve@st.com>

---
 drivers/crypto/stm32/stm32-hash.c | 4 +---
 1 file changed, 1 insertion(+), 3 deletions(-)

-- 
2.7.4

Comments

Herbert Xu April 18, 2019, 2:23 p.m. UTC | #1
On Mon, Apr 08, 2019 at 09:41:58AM +0200, Lionel Debieve wrote:
> Change the wait condition to check if the hash is busy.

> Context can be saved as soon as hash has finishing processing

> data. Remove unused lock in the device structure.

> 

> Signed-off-by: Lionel Debieve <lionel.debieve@st.com>

> ---

>  drivers/crypto/stm32/stm32-hash.c | 4 +---

>  1 file changed, 1 insertion(+), 3 deletions(-)


Patch applied.  Thanks.
-- 
Email: Herbert Xu <herbert@gondor.apana.org.au>
Home Page: http://gondor.apana.org.au/~herbert/
PGP Key: http://gondor.apana.org.au/~herbert/pubkey.txt
diff mbox series

Patch

diff --git a/drivers/crypto/stm32/stm32-hash.c b/drivers/crypto/stm32/stm32-hash.c
index 4a6cc8a..bfc49e6 100644
--- a/drivers/crypto/stm32/stm32-hash.c
+++ b/drivers/crypto/stm32/stm32-hash.c
@@ -181,8 +181,6 @@  struct stm32_hash_dev {
 	u32			dma_mode;
 	u32			dma_maxburst;
 
-	spinlock_t		lock; /* lock to protect queue */
-
 	struct ahash_request	*req;
 	struct crypto_engine	*engine;
 
@@ -977,7 +975,7 @@  static int stm32_hash_export(struct ahash_request *req, void *out)
 
 	pm_runtime_get_sync(hdev->dev);
 
-	while (!(stm32_hash_read(hdev, HASH_SR) & HASH_SR_DATA_INPUT_READY))
+	while ((stm32_hash_read(hdev, HASH_SR) & HASH_SR_BUSY))
 		cpu_relax();
 
 	rctx->hw_context = kmalloc_array(3 + HASH_CSR_REGISTER_NUMBER,