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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 9/9] dma: edma: remove limits on number of slots
Date: Mon, 29 Jul 2013 08:29:55 -0500	[thread overview]
Message-ID: <1375104595-16018-10-git-send-email-joelf@ti.com> (raw)
In-Reply-To: <1375104595-16018-1-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 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

      parent reply	other threads:[~2013-07-29 13:29 UTC|newest]

Thread overview: 30+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2013-07-29 13:29 [PATCH 0/9] dma: edma: Support scatter-lists of any length Joel Fernandes
     [not found] ` <1375104595-16018-1-git-send-email-joelf-l0cyMroinI0@public.gmane.org>
2013-07-29 13:29   ` [PATCH 1/9] dma: edma: Setup parameters to DMA MAX_NR_SG at a time Joel Fernandes
2013-07-29 13:29   ` [PATCH 2/9] dma: edma: Write out and handle MAX_NR_SG at a given time Joel Fernandes
2013-07-29 13:29   ` [PATCH 3/9] ARM: edma: Add function to manually trigger an EDMA channel Joel Fernandes
     [not found]     ` <1375104595-16018-4-git-send-email-joelf-l0cyMroinI0@public.gmane.org>
2013-07-30  5:18       ` Sekhar Nori
     [not found]         ` <51F74CAD.3040604-l0cyMroinI0@public.gmane.org>
2013-07-31  4:30           ` Joel Fernandes
     [not found]             ` <51F892D2.4090805-l0cyMroinI0@public.gmane.org>
2013-07-31  5:23               ` Sekhar Nori
     [not found]                 ` <51F89F5E.2050605-l0cyMroinI0@public.gmane.org>
2013-07-31  5:34                   ` Fernandes, Joel
2013-07-29 13:29 ` [PATCH 4/9] dma: edma: Find missed events and issue them Joel Fernandes
     [not found]   ` <1375104595-16018-5-git-send-email-joelf-l0cyMroinI0@public.gmane.org>
2013-07-30  7:05     ` Sekhar Nori
     [not found]       ` <51F7659E.3040302-l0cyMroinI0@public.gmane.org>
2013-07-31  4:49         ` Joel Fernandes
     [not found]           ` <51F89763.1010102-l0cyMroinI0@public.gmane.org>
2013-07-31  9:18             ` Sekhar Nori
     [not found]               ` <51F8D667.2040406-l0cyMroinI0@public.gmane.org>
2013-08-01  2:27                 ` Joel Fernandes
     [not found]                   ` <51F9C793.2000001-l0cyMroinI0@public.gmane.org>
2013-08-01  3:43                     ` Joel Fernandes
2013-08-01  4:39                     ` Joel Fernandes
2013-08-01  6:13                     ` Sekhar Nori
     [not found]                       ` <51F9FC87.3020706-l0cyMroinI0@public.gmane.org>
2013-08-01 20:28                         ` Joel Fernandes
     [not found]                           ` <51FAC50A.2020507-l0cyMroinI0@public.gmane.org>
2013-08-01 20:48                             ` Joel Fernandes
2013-08-02 13:26                             ` Sekhar Nori
     [not found]                               ` <51FBB371.6030901-l0cyMroinI0@public.gmane.org>
2013-08-02 18:15                                 ` Joel Fernandes
     [not found]                                   ` <51FBF749.4010303-l0cyMroinI0@public.gmane.org>
2013-08-02 23:00                                     ` Joel Fernandes
2013-07-29 13:29 ` [PATCH 5/9] dma: edma: Leave linked to Null slot instead of DUMMY slot Joel Fernandes
2013-07-29 13:29 ` [PATCH 6/9] dma: edma: Detect null slot errors and handle them correctly Joel Fernandes
2013-07-29 13:29 ` [PATCH 7/9] ARM: edma: Don't clear EMR of channel in edma_stop Joel Fernandes
     [not found]   ` <1375104595-16018-8-git-send-email-joelf-l0cyMroinI0@public.gmane.org>
2013-07-30  8:29     ` Sekhar Nori
     [not found]       ` <51F77982.7030601-l0cyMroinI0@public.gmane.org>
2013-07-31  5:05         ` Joel Fernandes
     [not found]           ` <51F89B0B.4080803-l0cyMroinI0@public.gmane.org>
2013-07-31  9:35             ` Sekhar Nori
     [not found]               ` <51F8DA5C.9060503-l0cyMroinI0@public.gmane.org>
2013-08-01  1:59                 ` Joel Fernandes
2013-07-29 13:29 ` [PATCH 8/9] dma: edma: Link to dummy slot only for last SG list split Joel Fernandes
2013-07-29 13:29 ` Joel Fernandes [this message]

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