From a88be9a7558ae51c3c0782bd5ab4340bb3822105 Mon Sep 17 00:00:00 2001 From: Lionel Debieve Date: Mon, 8 Apr 2019 09:41:58 +0200 Subject: [PATCH] crypto: stm32/hash - Fix self test issue during export 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 Signed-off-by: Herbert Xu --- drivers/crypto/stm32/stm32-hash.c | 4 +--- 1 file changed, 1 insertion(+), 3 deletions(-) diff --git a/drivers/crypto/stm32/stm32-hash.c b/drivers/crypto/stm32/stm32-hash.c index 4a6cc8a3045d..bfc49e67124b 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, -- 2.34.1