linux-kernel - [PATCH 9/9] dma: edma: remove limits on number of slots

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Message-ID: <1375104595-16018-10-git-send-email-joelf@ti.com>
Date:	Mon, 29 Jul 2013 08:29:55 -0500
From:	Joel Fernandes <joelf@...com>
To:	Tony Lindgren <tony@...mide.com>, Sekhar Nori <nsekhar@...com>,
	Santosh Shilimkar <santosh.shilimkar@...com>,
	Sricharan R <r.sricharan@...com>,
	Rajendra Nayak <rnayak@...com>,
	Lokesh Vutla <lokeshvutla@...com>,
	Matt Porter <matt@...orter.com>,
	Grant Likely <grant.likely@...retlab.ca>,
	Rob Herring <rob.herring@...xeda.com>,
	Vinod Koul <vinod.koul@...el.com>, Dan Williams <djbw@...com>,
	Mark Brown <broonie@...aro.org>,
	Benoit Cousson <benoit.cousson@...aro.org>,
	Russell King <linux@....linux.org.uk>,
	Arnd Bergmann <arnd@...db.de>, Olof Johansson <olof@...om.net>,
	Balaji TK <balajitk@...com>,
	Gururaja Hebbar <gururaja.hebbar@...com>,
	Chris Ball <cjb@...top.org>,
	Jason Kridner <jkridner@...gleboard.org>
CC:	Linux OMAP List <linux-omap@...r.kernel.org>,
	Linux ARM Kernel List <linux-arm-kernel@...ts.infradead.org>,
	Linux DaVinci Kernel List 
	<davinci-linux-open-source@...ux.davincidsp.com>,
	Linux Kernel Mailing List <linux-kernel@...r.kernel.org>,
	Linux MMC List <linux-mmc@...r.kernel.org>,
	Joel Fernandes <joelf@...com>
Subject: [PATCH 9/9] dma: edma: remove limits on number of slots

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

diff --git a/drivers/dma/edma.c b/drivers/dma/edma.c
index 0d3ebde..abf2e87 100644
--- a/drivers/dma/edma.c
+++ b/drivers/dma/edma.c
@@ -285,12 +285,6 @@ 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

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