linux-kernel - [PATCH] Remove an unused variable from the Intel I/OAT DMA engine driver

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Date:	Sun, 16 Sep 2007 23:31:50 +0200
From:	Jesper Juhl <jesper.juhl@...il.com>
To:	linux-kernel@...r.kernel.org
Cc:	Shannon Nelson <shannon.nelson@...el.com>,
	Chris Leech <christopher.leech@...el.com>,
	Jesper Juhl <jesper.juhl@...il.com>
Subject: [PATCH] Remove an unused variable from the Intel I/OAT DMA engine driver


The 'u16 chanctrl' variable in 
drivers/dma/ioatdma.c::ioat_dma_free_chan_resources() is completely 
unused and gcc quite rightfully warns about it:

  drivers/dma/ioatdma.c:247: warning: unused variable 'chanctrl'

This patch removes the unused variable and silences the warning.


Signed-off-by: Jesper Juhl <jesper.juhl@...il.com>
---

 ioatdma.c |    1 -
 1 file changed, 1 deletion(-)

--- linux-2.6/drivers/dma/ioatdma.c~	2007-09-16 23:24:20.000000000 +0200
+++ linux-2.6/drivers/dma/ioatdma.c	2007-09-16 23:24:20.000000000 +0200
@@ -244,7 +244,6 @@ static void ioat_dma_free_chan_resources
 	struct ioat_dma_chan *ioat_chan = to_ioat_chan(chan);
 	struct ioat_device *ioat_device = to_ioat_device(chan->device);
 	struct ioat_desc_sw *desc, *_desc;
-	u16 chanctrl;
 	int in_use_descs = 0;
 
 	ioat_dma_memcpy_cleanup(ioat_chan);


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