crypto: cavium/nitrox - Invoke callback after DMA unmap (356690d0) · Commits · 戴 / test

In process_response_list() invoke the callback handler after unmapping the DMA buffers. It ensures DMA data is synced form device to cpu before the client code access the data from callback handler. Fixes: ("crypto: cavium/nitrox - Added AEAD cipher support") Signed-off-by:

Nagadheeraj Rottela <rnagadheeraj@marvell.com> Signed-off-by:

Herbert Xu <herbert@gondor.apana.org.au>

drivers/crypto/cavium/nitrox/nitrox_reqmgr.c

+6 −4

Original line number	Diff line number	Diff line
		@@ -537,6 +537,8 @@ static void process_response_list(struct nitrox_cmdq *cmdq)
		struct nitrox_device *ndev = cmdq->ndev;
		struct nitrox_softreq *sr;
		int req_completed = 0, err = 0, budget;
		completion_t callback;
		void *cb_arg;

		/* check all pending requests */
		budget = atomic_read(&cmdq->pending_count);
		@@ -564,13 +566,13 @@ static void process_response_list(struct nitrox_cmdq *cmdq)
		smp_mb__after_atomic();
		/* remove from response list */
		response_list_del(sr, cmdq);

		/* ORH error code */
		err = READ_ONCE(*sr->resp.orh) & 0xff;

		if (sr->callback)
		sr->callback(sr->cb_arg, err);
		callback = sr->callback;
		cb_arg = sr->cb_arg;
		softreq_destroy(sr);
		if (callback)
		callback(cb_arg, err);

		req_completed++;
		}

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