From patchwork Thu Aug 29 23:05:45 2013 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Joel Fernandes X-Patchwork-Id: 2851655 Return-Path: X-Original-To: patchwork-davinci@patchwork.kernel.org Delivered-To: patchwork-parsemail@patchwork1.web.kernel.org Received: from mail.kernel.org (mail.kernel.org [198.145.19.201]) by patchwork1.web.kernel.org (Postfix) with ESMTP id E247D9F52D for ; Thu, 29 Aug 2013 23:08:46 +0000 (UTC) Received: from mail.kernel.org (localhost [127.0.0.1]) by mail.kernel.org (Postfix) with ESMTP id 2E9CC20518 for ; Thu, 29 Aug 2013 23:08:46 +0000 (UTC) Received: from bear.ext.ti.com (bear.ext.ti.com [192.94.94.41]) (using TLSv1 with cipher DHE-RSA-AES256-SHA (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPS id 38A202050F for ; Thu, 29 Aug 2013 23:08:45 +0000 (UTC) Received: from dlelxv90.itg.ti.com ([172.17.2.17]) by bear.ext.ti.com (8.13.7/8.13.7) with ESMTP id r7TN7fPX024138; Thu, 29 Aug 2013 18:07:41 -0500 Received: from DLEE70.ent.ti.com (dlee70.ent.ti.com [157.170.170.113]) by dlelxv90.itg.ti.com (8.14.3/8.13.8) with ESMTP id r7TN7frA025160; Thu, 29 Aug 2013 18:07:41 -0500 Received: from dflp33.itg.ti.com (10.64.6.16) by DLEE70.ent.ti.com (157.170.170.113) with Microsoft SMTP Server id 14.2.342.3; Thu, 29 Aug 2013 18:07:41 -0500 Received: from linux.omap.com (dlelxs01.itg.ti.com [157.170.227.31]) by dflp33.itg.ti.com (8.14.3/8.13.8) with ESMTP id r7TN7eYd001401; Thu, 29 Aug 2013 18:07:40 -0500 Received: from linux.omap.com (localhost [127.0.0.1]) by linux.omap.com (Postfix) with ESMTP id 816BC80626; Thu, 29 Aug 2013 18:07:40 -0500 (CDT) X-Original-To: davinci-linux-open-source@linux.davincidsp.com Delivered-To: davinci-linux-open-source@linux.davincidsp.com Received: from dlelxv90.itg.ti.com (dlelxv90.itg.ti.com [172.17.2.17]) by linux.omap.com (Postfix) with ESMTP id B14D980626 for ; Thu, 29 Aug 2013 18:06:04 -0500 (CDT) Received: from DFLE72.ent.ti.com (dfle72.ent.ti.com [128.247.5.109]) by dlelxv90.itg.ti.com (8.14.3/8.13.8) with ESMTP id r7TN64Ag021216; Thu, 29 Aug 2013 18:06:04 -0500 Received: from dlep32.itg.ti.com (157.170.170.100) by DFLE72.ent.ti.com (128.247.5.109) with Microsoft SMTP Server id 14.2.342.3; Thu, 29 Aug 2013 18:06:04 -0500 Received: from joel-laptop.itg.ti.com (ileax41-snat.itg.ti.com [10.172.224.153]) by dlep32.itg.ti.com (8.14.3/8.13.8) with ESMTP id r7TN5j0e030581; Thu, 29 Aug 2013 18:06:03 -0500 From: Joel Fernandes To: Sekhar Nori , Matt Porter , Vinod Koul , Dan Williams , Russell King , Sricharan R Subject: [PATCH v4 6/6] dma: edma: Remove limits on number of slots Date: Thu, 29 Aug 2013 18:05:45 -0500 Message-ID: <1377817545-18015-7-git-send-email-joelf@ti.com> X-Mailer: git-send-email 1.8.1.2 In-Reply-To: <1377817545-18015-1-git-send-email-joelf@ti.com> References: <1377817545-18015-1-git-send-email-joelf@ti.com> MIME-Version: 1.0 CC: Linux DaVinci Kernel List , Joel Fernandes , Koen Kooi , Linux MMC List , Linux Kernel Mailing List , Franklin Cooper , Linux OMAP List , Linux ARM Kernel List X-BeenThere: davinci-linux-open-source@linux.davincidsp.com X-Mailman-Version: 2.1.12 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: Errors-To: davinci-linux-open-source-bounces@linux.davincidsp.com X-Spam-Status: No, score=-6.9 required=5.0 tests=BAYES_00, RCVD_IN_DNSWL_HI, UNPARSEABLE_RELAY autolearn=unavailable version=3.3.1 X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on mail.kernel.org X-Virus-Scanned: ClamAV using ClamSMTP With this series, this check is no longer required and we shouldn't need to reject drivers DMA'ing more than the MAX number of slots. Signed-off-by: Joel Fernandes --- drivers/dma/edma.c | 6 ------ 1 file changed, 6 deletions(-) diff --git a/drivers/dma/edma.c b/drivers/dma/edma.c index 25e47d4..d966413 100644 --- a/drivers/dma/edma.c +++ b/drivers/dma/edma.c @@ -287,12 +287,6 @@ static struct dma_async_tx_descriptor *edma_prep_slave_sg( return NULL; } - if (sg_len > MAX_NR_SG) { - dev_err(dev, "Exceeded max SG segments %d > %d\n", - sg_len, MAX_NR_SG); - return NULL; - } - edesc = kzalloc(sizeof(*edesc) + sg_len * sizeof(edesc->pset[0]), GFP_ATOMIC); if (!edesc) {