From mboxrd@z Thu Jan 1 00:00:00 1970 From: Heiner Kallweit Subject: [PATCH v2 7/9] mmc: meson-gx: reduce bounce buffer size Date: Wed, 1 Feb 2017 07:49:18 +0100 Message-ID: <90d34a64-bd3e-dcf2-4c36-5ef4e2ac8666@gmail.com> References: <584e5061-d359-1436-05ee-3767a5a4b10f@gmail.com> Mime-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: 7bit Return-path: Received: from mail-wj0-f195.google.com ([209.85.210.195]:33539 "EHLO mail-wj0-f195.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751004AbdBAGty (ORCPT ); Wed, 1 Feb 2017 01:49:54 -0500 Received: by mail-wj0-f195.google.com with SMTP id le4so2744555wjb.0 for ; Tue, 31 Jan 2017 22:49:53 -0800 (PST) In-Reply-To: <584e5061-d359-1436-05ee-3767a5a4b10f@gmail.com> Sender: linux-mmc-owner@vger.kernel.org List-Id: linux-mmc@vger.kernel.org To: Ulf Hansson , Carlo Caione , Kevin Hilman Cc: linux-mmc@vger.kernel.org, linux-amlogic@lists.infradead.org A bounce buffer of 512K isn't needed as the max request size is 511 * 512 byte. Signed-off-by: Heiner Kallweit --- v2: - no changes --- drivers/mmc/host/meson-gx-mmc.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/mmc/host/meson-gx-mmc.c b/drivers/mmc/host/meson-gx-mmc.c index 883263c5..48ce4ba4 100644 --- a/drivers/mmc/host/meson-gx-mmc.c +++ b/drivers/mmc/host/meson-gx-mmc.c @@ -785,7 +785,7 @@ static int meson_mmc_probe(struct platform_device *pdev) mmc->max_req_size = mmc->max_blk_count * mmc->max_blk_size; /* data bounce buffer */ - host->bounce_buf_size = SZ_512K; + host->bounce_buf_size = mmc->max_req_size; host->bounce_buf = dma_alloc_coherent(host->dev, host->bounce_buf_size, &host->bounce_dma_addr, GFP_KERNEL); -- 2.11.0