linux-kernel - [PATCH RFC 24/51] DMA-API: dma: pl330: add dma_set_mask_and

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: <E1V50sr-0006ro-22@rmk-PC.arm.linux.org.uk>
Date:	Thu, 01 Aug 2013 22:58:09 +0100
From:	Russell King <rmk+kernel@....linux.org.uk>
To:	linux-arm-kernel@...ts.infradead.org
Cc:	linux-kernel@...r.kernel.org, Arnd Bergmann <arnd@...db.de>
Subject: [PATCH RFC 24/51] DMA-API: dma: pl330: add
 dma_set_mask_and_coherent() call

The DMA API requires drivers to call the appropriate dma_set_mask()
functions before doing any DMA mapping.  Add this required call to
the AMBA PL08x driver.

Signed-off-by: Russell King <rmk+kernel@....linux.org.uk>
---
 drivers/dma/pl330.c |    4 ++++
 1 files changed, 4 insertions(+), 0 deletions(-)

diff --git a/drivers/dma/pl330.c b/drivers/dma/pl330.c
index 593827b..9d30c53 100644
--- a/drivers/dma/pl330.c
+++ b/drivers/dma/pl330.c
@@ -2869,6 +2869,10 @@ pl330_probe(struct amba_device *adev, const struct amba_id *id)
 
 	pdat = adev->dev.platform_data;
 
+	ret = dma_set_mask_and_coherent(&adev->dev, DMA_BIT_MASK(32));
+	if (ret)
+		return ret;
+
 	/* Allocate a new DMAC and its Channels */
 	pdmac = devm_kzalloc(&adev->dev, sizeof(*pdmac), GFP_KERNEL);
 	if (!pdmac) {
-- 
1.7.4.4

--
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/