From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1752048AbdHAKiu (ORCPT ); Tue, 1 Aug 2017 06:38:50 -0400 Received: from mail-qk0-f169.google.com ([209.85.220.169]:38257 "EHLO mail-qk0-f169.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751972AbdHAKiq (ORCPT ); Tue, 1 Aug 2017 06:38:46 -0400 From: Anup Patel To: Rob Herring , Mark Rutland , Vinod Koul , Dan Williams Cc: Florian Fainelli , Scott Branden , Ray Jui , linux-kernel@vger.kernel.org, linux-arm-kernel@lists.infradead.org, devicetree@vger.kernel.org, dmaengine@vger.kernel.org, bcm-kernel-feedback-list@broadcom.com, Anup Patel Subject: [PATCH v2 04/16] dmaengine: bcm-sba-raid: Remove redundant next_count from sba_request Date: Tue, 1 Aug 2017 16:07:48 +0530 Message-Id: <1501583880-32072-5-git-send-email-anup.patel@broadcom.com> X-Mailer: git-send-email 2.7.4 In-Reply-To: <1501583880-32072-1-git-send-email-anup.patel@broadcom.com> References: <1501583880-32072-1-git-send-email-anup.patel@broadcom.com> Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org 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: Anup Patel --- drivers/dma/bcm-sba-raid.c | 6 +----- 1 file changed, 1 insertion(+), 5 deletions(-) diff --git a/drivers/dma/bcm-sba-raid.c b/drivers/dma/bcm-sba-raid.c index 6fa3df1..e8863e9 100644 --- a/drivers/dma/bcm-sba-raid.c +++ b/drivers/dma/bcm-sba-raid.c @@ -111,7 +111,6 @@ struct sba_request { /* Chained requests management */ struct sba_request *first; struct list_head next; - unsigned int next_count; atomic_t next_pending_count; /* BRCM message data */ void *resp; @@ -221,7 +220,6 @@ static struct sba_request *sba_alloc_request(struct sba_device *sba) req->flags = SBA_REQUEST_STATE_ALLOCED; req->first = req; INIT_LIST_HEAD(&req->next); - req->next_count = 1; atomic_set(&req->next_pending_count, 1); 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); req->first = first; - first->next_count++; - atomic_set(&first->next_pending_count, first->next_count); + atomic_inc(&first->next_pending_count); 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->flags = SBA_REQUEST_STATE_FREE; INIT_LIST_HEAD(&req->next); - req->next_count = 1; atomic_set(&req->next_pending_count, 0); req->resp = sba->resp_base + p; req->resp_dma = sba->resp_dma_base + p; -- 2.7.4