linux-kernel - [PATCH 1/6] dmaengine: introduce is_slave

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: <1353074360-1903-2-git-send-email-andriy.shevchenko@linux.intel.com>
Date:	Fri, 16 Nov 2012 15:59:14 +0200
From:	Andy Shevchenko <andriy.shevchenko@...ux.intel.com>
To:	Vinod Koul <vinod.koul@...el.com>,
	spear-devel <spear-devel@...t.st.com>,
	linux-kernel@...r.kernel.org,
	Viresh Kumar <viresh.kumar@...aro.org>
Cc:	Andy Shevchenko <andriy.shevchenko@...ux.intel.com>,
	Nicolas Ferre <nicolas.ferre@...el.com>,
	Mika Westerberg <mika.westerberg@...ux.intel.com>,
	Guennadi Liakhovetski <g.liakhovetski@....de>,
	Linus Walleij <linus.walleij@...aro.org>
Subject: [PATCH 1/6] dmaengine: introduce is_slave_xfer function

This function helps to distinguish the slave type of transfer by checking the
direction parameter.

Signed-off-by: Andy Shevchenko <andriy.shevchenko@...ux.intel.com>
Cc: Nicolas Ferre <nicolas.ferre@...el.com>
Cc: Mika Westerberg <mika.westerberg@...ux.intel.com>
Cc: Guennadi Liakhovetski <g.liakhovetski@....de>
Cc: Linus Walleij <linus.walleij@...aro.org>
---
 include/linux/dmaengine.h |    5 +++++
 1 file changed, 5 insertions(+)

diff --git a/include/linux/dmaengine.h b/include/linux/dmaengine.h
index 6402b18..3e1a9026 100644
--- a/include/linux/dmaengine.h
+++ b/include/linux/dmaengine.h
@@ -618,6 +618,11 @@ static inline int dmaengine_slave_config(struct dma_chan *chan,
 			(unsigned long)config);
 }
 
+static inline bool is_slave_xfer(enum dma_transfer_direction direction)
+{
+	return (direction == DMA_MEM_TO_DEV) || (direction == DMA_DEV_TO_MEM);
+}
+
 static inline struct dma_async_tx_descriptor *dmaengine_prep_slave_single(
 	struct dma_chan *chan, dma_addr_t buf, size_t len,
 	enum dma_transfer_direction dir, unsigned long flags)
-- 
1.7.10.4

--
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/