linux-kernel - Re: [PATCH] dmaengine: bcm2835: fix 64-bit warning

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Date:	Fri, 1 Jul 2016 08:40:31 +0530
From:	Vinod Koul <vinod.koul@...el.com>
To:	Arnd Bergmann <arnd@...db.de>
Cc:	Stephen Warren <swarren@...dotorg.org>, Lee Jones <lee@...nel.org>,
	Eric Anholt <eric@...olt.net>,
	Martin Sperl <kernel@...tin.sperl.org>,
	dmaengine@...r.kernel.org, linux-rpi-kernel@...ts.infradead.org,
	linux-arm-kernel@...ts.infradead.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH] dmaengine: bcm2835: fix 64-bit warning

On Thu, Jun 30, 2016 at 02:47:10PM +0200, Arnd Bergmann wrote:
> When building this driver on arm64, we get a harmless type
> mismatch warning:
> 
> drivers/dma/bcm2835-dma.c: In function 'bcm2835_dma_fill_cb_chain_with_sg':
> include/linux/kernel.h:743:17: warning: comparison of distinct pointer types lacks a cast
>   (void) (&_min1 == &_min2);  \
>                  ^
> drivers/dma/bcm2835-dma.c:409:21: note: in expansion of macro 'min'
>     cb->cb->length = min(len, max_len);
> 
> This changes the type of the 'len' variable to size_t, which
> avoids the problem.

Applied, thanks

-- 
~Vinod