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Commit 10f1a330 authored by Anup Patel's avatar Anup Patel Committed by Vinod Koul
Browse files

dmaengine: bcm-sba-raid: Remove redundant next_count from sba_request 



The next_count in sba_request is redundant because same information
is captured by next_pending_count. This patch removes next_count
from sba_request.

Signed-off-by: default avatarAnup Patel <anup.patel@broadcom.com>
Signed-off-by: default avatarVinod Koul <vinod.koul@intel.com>
parent 57a28508

drivers/dma/bcm-sba-raid.c

+1 −5
Original line number Original line Diff line number Diff line
@@ -111,7 +111,6 @@ struct sba_request { 
	/* Chained requests management */

	/* Chained requests management */

	struct sba_request *first;

	struct sba_request *first;

	struct list_head next;

	struct list_head next;

	unsigned int next_count;

	atomic_t next_pending_count;

	atomic_t next_pending_count;

	/* BRCM message data */

	/* BRCM message data */

	void *resp;

	void *resp;
@@ -221,7 +220,6 @@ static struct sba_request *sba_alloc_request(struct sba_device *sba) 
	req->flags = SBA_REQUEST_STATE_ALLOCED;

	req->flags = SBA_REQUEST_STATE_ALLOCED;

	req->first = req;

	req->first = req;

	INIT_LIST_HEAD(&req->next);

	INIT_LIST_HEAD(&req->next);

	req->next_count = 1;

	atomic_set(&req->next_pending_count, 1);

	atomic_set(&req->next_pending_count, 1);





	dma_async_tx_descriptor_init(&req->tx, &sba->dma_chan);

	dma_async_tx_descriptor_init(&req->tx, &sba->dma_chan);
@@ -342,8 +340,7 @@ static void sba_chain_request(struct sba_request *first, 




	list_add_tail(&req->next, &first->next);

	list_add_tail(&req->next, &first->next);

	req->first = first;

	req->first = first;

	first->next_count++;

	atomic_inc(&first->next_pending_count);

	atomic_set(&first->next_pending_count, first->next_count);





	spin_unlock_irqrestore(&sba->reqs_lock, flags);

	spin_unlock_irqrestore(&sba->reqs_lock, flags);

}

}
@@ -1501,7 +1498,6 @@ static int sba_prealloc_channel_resources(struct sba_device *sba) 
		req->sba = sba;

		req->sba = sba;

		req->flags = SBA_REQUEST_STATE_FREE;

		req->flags = SBA_REQUEST_STATE_FREE;

		INIT_LIST_HEAD(&req->next);

		INIT_LIST_HEAD(&req->next);

		req->next_count = 1;

		atomic_set(&req->next_pending_count, 0);

		atomic_set(&req->next_pending_count, 0);

		req->resp = sba->resp_base + p;

		req->resp = sba->resp_base + p;

		req->resp_dma = sba->resp_dma_base + p;

		req->resp_dma = sba->resp_dma_base + p;