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Subject: drivers/dma/sirf-dma.c: boolean and / or confusion
From: Joe Perches <joe@perches.com>
To: roel <roel.kluin@gmail.com>, Barry Song <baohua.song@csr.com>
Cc: Andrew Morton <akpm@linux-foundation.org>,
        LKML <linux-kernel@vger.kernel.org>,
        linux-arm-kernel <linux-arm-kernel@lists.infradead.org>
Date: Mon, 12 Dec 2011 16:14:23 -0800
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References: <4EE688FC.8090606@gmail.com>
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On Tue, 2011-12-13 at 00:06 +0100, roel wrote:
> The test not [val1] or not [val2] always evaluates to true

Looking at drivers with:

$ grep -rP --include=*.[ch] "(\b[\w\[\]\>\._\-]+)\s*\!\=\s*[\w\[\]\>\._\-]+\s*\)\s*\|\|\s*\(\s*\1\s*\!\=" drivers

drivers/dma/sirf-dma.c:	if ((xt->dir != DMA_MEM_TO_DEV) || (xt->dir != DMA_DEV_TO_MEM)) {

Likely the || should be &&