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: 2851669 Return-Path: X-Original-To: patchwork-linux-omap@patchwork.kernel.org Delivered-To: patchwork-parsemail@patchwork2.web.kernel.org Received: from mail.kernel.org (mail.kernel.org [198.145.19.201]) by patchwork2.web.kernel.org (Postfix) with ESMTP id E9CE2C0AB5 for ; Thu, 29 Aug 2013 23:10:20 +0000 (UTC) Received: from mail.kernel.org (localhost [127.0.0.1]) by mail.kernel.org (Postfix) with ESMTP id 2CE0720525 for ; Thu, 29 Aug 2013 23:10:20 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 4993F2048E for ; Thu, 29 Aug 2013 23:10:19 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1757418Ab3H2XJ5 (ORCPT ); Thu, 29 Aug 2013 19:09:57 -0400 Received: from devils.ext.ti.com ([198.47.26.153]:58574 "EHLO devils.ext.ti.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752662Ab3H2XGf (ORCPT ); Thu, 29 Aug 2013 19:06:35 -0400 Received: from dlelxv90.itg.ti.com ([172.17.2.17]) by devils.ext.ti.com (8.13.7/8.13.7) with ESMTP id r7TN64ON010585; Thu, 29 Aug 2013 18:06:04 -0500 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 CC: Linux OMAP List , Linux ARM Kernel List , Linux DaVinci Kernel List , Linux Kernel Mailing List , Linux MMC List , Koen Kooi , Franklin Cooper , Joel Fernandes 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 Sender: linux-omap-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-omap@vger.kernel.org X-Spam-Status: No, score=-9.4 required=5.0 tests=BAYES_00, RCVD_IN_DNSWL_HI, RP_MATCHES_RCVD, 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) {