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| author | Cyrille Pitchen <cyrille.pitchen@atmel.com> | 2017-01-26 17:07:48 +0100 |
|---|---|---|
| committer | Herbert Xu <herbert@gondor.apana.org.au> | 2017-02-03 11:16:12 +0100 |
| commit | b5ce82a7b4938f278fc6da28ce00da34e7a0773c (patch) | |
| tree | d339df10118e56d3438d7b0c61a59beb77ff8c7a /drivers/crypto/atmel-sha.c | |
| parent | crypto: atmel-sha - update request queue management to make it more generic (diff) | |
| download | linux-b5ce82a7b4938f278fc6da28ce00da34e7a0773c.tar.xz linux-b5ce82a7b4938f278fc6da28ce00da34e7a0773c.zip | |
crypto: atmel-sha - make atmel_sha_done_task more generic
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>
Diffstat (limited to 'drivers/crypto/atmel-sha.c')
| -rw-r--r-- | drivers/crypto/atmel-sha.c | 21 |
1 files changed, 16 insertions, 5 deletions
diff --git a/drivers/crypto/atmel-sha.c b/drivers/crypto/atmel-sha.c index 2dbed8bb8d26..643d79a05dda 100644 --- a/drivers/crypto/atmel-sha.c +++ b/drivers/crypto/atmel-sha.c @@ -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) |