linux-kernel - [PATCH v4 6/6] dma: edma: Remove limits on number of slots

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]

Message-ID: <1377817545-18015-7-git-send-email-joelf@ti.com>
Date:	Thu, 29 Aug 2013 18:05:45 -0500
From:	Joel Fernandes <joelf@...com>
To:	Sekhar Nori <nsekhar@...com>, Matt Porter <matt@...orter.com>,
	Vinod Koul <vinod.koul@...el.com>, Dan Williams <djbw@...com>,
	Russell King <linux@....linux.org.uk>,
	Sricharan R <r.sricharan@...com>
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>,
	Koen Kooi <koen@...inion.thruhere.net>,
	Franklin Cooper <fcooper@...com>, Joel Fernandes <joelf@...com>
Subject: [PATCH v4 6/6] 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 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) {
-- 
1.8.1.2

--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@...r.kernel.org
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/