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
prev 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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