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From: Joel Fernandes <joelf@ti.com>
To: Tony Lindgren <tony@atomide.com>, Sekhar Nori <nsekhar@ti.com>,
	Santosh Shilimkar <santosh.shilimkar@ti.com>,
	Sricharan R <r.sricharan@ti.com>, Rajendra Nayak <rnayak@ti.com>,
	Lokesh Vutla <lokeshvutla@ti.com>,
	Matt Porter <matt@ohporter.com>,
	Grant Likely <grant.likely@secretlab.ca>,
	Rob Herring <rob.herring@calxeda.com>,
	Vinod Koul <vinod.koul@intel.com>, Dan Williams <djbw@fb.com>,
	Mark Brown <broonie@linaro.org>,
	Benoit Cousson <benoit.cousson@linaro.org>,
	Russell King <linux@arm.linux.org.uk>,
	Arnd Bergmann <arnd@arndb.de>, Olof Johansson <olof@lixom.net>,
	Balaji TK <balajitk@ti.com>,
	Gururaja Hebbar <gururaja.hebbar@ti.com>,
	Chris Ball <cjb@laptop.org>,
	Jason Kridner <jkridner@beagleboard.org>
Cc: Linux OMAP List <linux-omap@vger.kernel.org>,
	Linux ARM Kernel List <linux-arm-kernel@lists.infradead.org>,
	Linux DaVinci Kernel List
	<davinci-linux-open-source@linux.davincidsp.com>,
	Linux Kernel Mailing List <linux-kernel@vger.kernel.org>,
	Linux MMC List <linux-mmc@vger.kernel.org>,
	Joel Fernandes <joelf@ti.com>
Subject: [PATCH v3 03/12] dma: edma: remove limits on number of slots
Date: Mon, 5 Aug 2013 11:14:48 -0500	[thread overview]
Message-ID: <1375719297-12871-4-git-send-email-joelf@ti.com> (raw)
In-Reply-To: <1375719297-12871-1-git-send-email-joelf@ti.com>

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 <joelf@ti.com>
---
 drivers/dma/edma.c |    6 ------
 1 file changed, 6 deletions(-)

diff --git a/drivers/dma/edma.c b/drivers/dma/edma.c
index 7b0853c..b6d609c 100644
--- a/drivers/dma/edma.c
+++ b/drivers/dma/edma.c
@@ -247,12 +247,6 @@ 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) {
-- 
1.7.9.5


  parent reply	other threads:[~2013-08-05 16:14 UTC|newest]

Thread overview: 31+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2013-08-05 16:14 [PATCH v3 00/12] edma: Add support for SG lists of any length Joel Fernandes
     [not found] ` <1375719297-12871-1-git-send-email-joelf-l0cyMroinI0@public.gmane.org>
2013-08-05 16:14   ` [PATCH v3 01/12] dma: edma: Setup parameters to DMA MAX_NR_SG at a time Joel Fernandes
     [not found]     ` <1375719297-12871-2-git-send-email-joelf-l0cyMroinI0@public.gmane.org>
2013-08-12  7:15       ` Sekhar Nori
     [not found]         ` <52088B8B.9040000-l0cyMroinI0@public.gmane.org>
2013-08-12 23:55           ` Joel Fernandes
     [not found]             ` <52097604.7010503-l0cyMroinI0@public.gmane.org>
2013-08-13  0:19               ` Joel Fernandes
2013-08-13  0:05           ` Joel Fernandes
2013-08-05 16:14   ` [PATCH v3 02/12] ARM: edma: Don't clear EMR of channel in edma_stop Joel Fernandes
     [not found]     ` <1375719297-12871-3-git-send-email-joelf-l0cyMroinI0@public.gmane.org>
2013-08-08 11:49       ` Sekhar Nori
     [not found]         ` <520385D3.1060408-l0cyMroinI0@public.gmane.org>
2013-08-12  4:25           ` Sekhar Nori
2013-08-12  4:29             ` Joel Fernandes
2013-08-12  6:24               ` Sekhar Nori
2013-08-16  5:57   ` [PATCH v3 00/12] edma: Add support for SG lists of any length Joel Fernandes
2013-08-05 16:14 ` Joel Fernandes [this message]
     [not found]   ` <1375719297-12871-4-git-send-email-joelf-l0cyMroinI0@public.gmane.org>
2013-08-12  7:17     ` [PATCH v3 03/12] dma: edma: remove limits on number of slots Sekhar Nori
2013-08-05 16:14 ` [PATCH v3 04/12] dma: edma: Write out and handle MAX_NR_SG at a given time Joel Fernandes
2013-08-05 16:14 ` [PATCH v3 05/12] ARM: edma: Add function to enable interrupt for a PaRAM slot Joel Fernandes
2013-08-05 16:14 ` [PATCH v3 06/12] ARM: edma: Add pr_debug in edma_link Joel Fernandes
2013-08-05 16:14 ` [PATCH v3 07/12] dma: edma: Add function to dump a PaRAM set from PaRAM Joel Fernandes
     [not found]   ` <1375719297-12871-8-git-send-email-joelf-l0cyMroinI0@public.gmane.org>
2013-08-12  5:52     ` Sekhar Nori
     [not found]       ` <52087824.60002-l0cyMroinI0@public.gmane.org>
2013-08-13  1:06         ` Joel Fernandes
2013-08-05 16:14 ` [PATCH v3 08/12] dma: edma: Add one more required slot to MAX slots Joel Fernandes
2013-08-12  5:56   ` Sekhar Nori
2013-08-12 13:31     ` Mark Brown
     [not found]       ` <20130812133111.GZ6427-GFdadSzt00ze9xe1eoZjHA@public.gmane.org>
2013-08-12 18:19         ` Joel Fernandes
     [not found]     ` <52087921.8040101-l0cyMroinI0@public.gmane.org>
2013-08-13  1:08       ` Joel Fernandes
2013-08-05 16:14 ` [PATCH v3 09/12] dma: edma: Implement multiple linked sets for continuity Joel Fernandes
     [not found]   ` <1375719297-12871-10-git-send-email-joelf-l0cyMroinI0@public.gmane.org>
2013-08-12 18:56     ` Sekhar Nori
     [not found]       ` <52092FF7.7040508-l0cyMroinI0@public.gmane.org>
2013-08-13  1:00         ` Joel Fernandes
2013-08-05 16:14 ` [PATCH v3 10/12] dma: edma: Check if MAX_NR_SG is even in prep function Joel Fernandes
2013-08-05 16:14 ` [PATCH v3 11/12] dma: edma: Keep tracking of Pending interrupts (pending_acks) Joel Fernandes
2013-08-05 16:14 ` [PATCH v3 12/12] dma: edma: Return if nothing left todo in edma_execute Joel Fernandes

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