diff options
| author | Romain Perier <romain.perier@free-electrons.com> | 2016-07-22 14:40:55 +0200 |
|---|---|---|
| committer | Herbert Xu <herbert@gondor.apana.org.au> | 2016-07-28 13:04:43 +0800 |
| commit | 603e989ebee21bfa9cddf8390d0515a07324edc8 (patch) | |
| tree | 2677e1625e24d3b76fc923fade5de6df4fa58f56 /drivers/crypto | |
| parent | ec38f82e85532bdde27af8dea8e6c09e26f88e16 (diff) | |
| download | linux-603e989ebee21bfa9cddf8390d0515a07324edc8.tar.bz2 | |
crypto: marvell - Don't chain at DMA level when backlog is disabled
The flag CRYPTO_TFM_REQ_MAY_BACKLOG is optional and can be set from the
user to put requests into the backlog queue when the main cryptographic
queue is full. Before calling mv_cesa_tdma_chain we must check the value
of the return status to be sure that the current request has been
correctly queued or added to the backlog.
Fixes: 85030c5168f1 ("crypto: marvell - Add support for chaining...")
Signed-off-by: Romain Perier <romain.perier@free-electrons.com>
Acked-by: Boris Brezillon <boris.brezillon@free-electrons.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Diffstat (limited to 'drivers/crypto')
| -rw-r--r-- | drivers/crypto/marvell/cesa.c | 7 |
1 files changed, 4 insertions, 3 deletions
diff --git a/drivers/crypto/marvell/cesa.c b/drivers/crypto/marvell/cesa.c index e373cc6557c6..d64af8625d7e 100644 --- a/drivers/crypto/marvell/cesa.c +++ b/drivers/crypto/marvell/cesa.c @@ -180,10 +180,11 @@ int mv_cesa_queue_req(struct crypto_async_request *req, struct mv_cesa_engine *engine = creq->engine; spin_lock_bh(&engine->lock); - if (mv_cesa_req_get_type(creq) == CESA_DMA_REQ) - mv_cesa_tdma_chain(engine, creq); - ret = crypto_enqueue_request(&engine->queue, req); + if ((mv_cesa_req_get_type(creq) == CESA_DMA_REQ) && + (ret == -EINPROGRESS || + (ret == -EBUSY && req->flags & CRYPTO_TFM_REQ_MAY_BACKLOG))) + mv_cesa_tdma_chain(engine, creq); spin_unlock_bh(&engine->lock); if (ret != -EINPROGRESS) |