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crypto: atmel-sha - make atmel_sha_done_task more generic

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This patch is a transitional patch. It updates atmel_sha_done_task() to
make it more generic. Indeed, it adds a new .resume() member in the
atmel_sha_dev structure. This hook is called from atmel_sha_done_task()
to resume processing an asynchronous request.

Signed-off-by: Cyrille Pitchen <cyrille.pitchen@atmel.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
This commit is contained in:
Cyrille Pitchen 2017-01-26 17:07:48 +01:00 committed by Herbert Xu
parent a29af939b2
commit b5ce82a7b4
1 changed files with 16 additions and 5 deletions
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21
drivers/crypto/atmel-sha.c
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@ -138,6 +138,7 @@ struct atmel_sha_dev {
struct crypto_queue queue;
struct ahash_request *req;
bool is_async;
atmel_sha_fn_t resume;
struct atmel_sha_dma dma_lch_in;
@ -946,6 +947,8 @@ static int atmel_sha_handle_queue(struct atmel_sha_dev *dd,
return (start_async) ? ret : err;
}
static int atmel_sha_done(struct atmel_sha_dev *dd);
static int atmel_sha_start(struct atmel_sha_dev *dd)
{
struct ahash_request *req = dd->req;
@ -960,6 +963,7 @@ static int atmel_sha_start(struct atmel_sha_dev *dd)
if (err)
goto err1;
dd->resume = atmel_sha_done;
if (ctx->op == SHA_OP_UPDATE) {
err = atmel_sha_update_req(dd);
if (err != -EINPROGRESS && (ctx->flags & SHA_FLAGS_FINUP))
@ -1215,13 +1219,10 @@ static void atmel_sha_queue_task(unsigned long data)
atmel_sha_handle_queue(dd, NULL);
}
static void atmel_sha_done_task(unsigned long data)
static int atmel_sha_done(struct atmel_sha_dev *dd)
{
struct atmel_sha_dev *dd = (struct atmel_sha_dev *)data;
int err = 0;
dd->is_async = true;
if (SHA_FLAGS_CPU & dd->flags) {
if (SHA_FLAGS_OUTPUT_READY & dd->flags) {
dd->flags &= ~SHA_FLAGS_OUTPUT_READY;
@ -1245,11 +1246,21 @@ static void atmel_sha_done_task(unsigned long data)
goto finish;
}
}
return;
return err;
finish:
/* finish curent request */
atmel_sha_finish_req(dd->req, err);
return err;
}
static void atmel_sha_done_task(unsigned long data)
{
struct atmel_sha_dev *dd = (struct atmel_sha_dev *)data;
dd->is_async = true;
(void)dd->resume(dd);
}
static irqreturn_t atmel_sha_irq(int irq, void *dev_id)