From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1754255AbeDPIuv (ORCPT ); Mon, 16 Apr 2018 04:50:51 -0400 Received: from bombadil.infradead.org ([198.137.202.133]:44732 "EHLO bombadil.infradead.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1753950AbeDPIut (ORCPT ); Mon, 16 Apr 2018 04:50:49 -0400 From: Christoph Hellwig To: iommu@lists.linux-foundation.org, linux-arch@vger.kernel.org, linux-block@vger.kernel.org, linux-ide@vger.kernel.org, linux-scsi@vger.kernel.org, netdev@vger.kernel.org Cc: linux-kernel@vger.kernel.org Subject: [PATCH 03/12] mtip32xx: don't use block layer bounce buffers Date: Mon, 16 Apr 2018 10:50:23 +0200 Message-Id: <20180416085032.7367-4-hch@lst.de> X-Mailer: git-send-email 2.17.0 In-Reply-To: <20180416085032.7367-1-hch@lst.de> References: <20180416085032.7367-1-hch@lst.de> X-SRS-Rewrite: SMTP reverse-path rewritten from by bombadil.infradead.org. See http://www.infradead.org/rpr.html Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org mtip32xx just sets the block bounce limit to the dma mask, which means that the iommu or swiotlb already take care of the bounce buffering, and the block bouncing can be removed. Signed-off-by: Christoph Hellwig --- drivers/block/mtip32xx/mtip32xx.c | 1 - 1 file changed, 1 deletion(-) diff --git a/drivers/block/mtip32xx/mtip32xx.c b/drivers/block/mtip32xx/mtip32xx.c index 769c551e3d71..b03bb27dcc58 100644 --- a/drivers/block/mtip32xx/mtip32xx.c +++ b/drivers/block/mtip32xx/mtip32xx.c @@ -3862,7 +3862,6 @@ static int mtip_block_initialize(struct driver_data *dd) blk_queue_max_hw_sectors(dd->queue, 0xffff); blk_queue_max_segment_size(dd->queue, 0x400000); blk_queue_io_min(dd->queue, 4096); - blk_queue_bounce_limit(dd->queue, dd->pdev->dma_mask); /* Signal trim support */ if (dd->trim_supp == true) { -- 2.17.0