netdev - Re: [PATCH] infiniband: mlx5: avoid a compile-time warning

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Date:	Tue, 13 Jan 2015 17:08:41 -0500 (EST)
From:	David Miller <davem@...emloft.net>
To:	arnd@...db.de
Cc:	eli@...lanox.com, roland@...nel.org, linux-rdma@...r.kernel.org,
	hal.rosenstock@...il.com, sean.hefty@...el.com,
	netdev@...r.kernel.org
Subject: Re: [PATCH] infiniband: mlx5: avoid a compile-time warning

From: Arnd Bergmann <arnd@...db.de>
Date: Tue, 13 Jan 2015 17:09:43 +0100

> The return type of find_first_bit() is architecture specific,
> on ARM it is 'unsigned int', while the asm-generic code used
> on x86 and a lot of other architectures returns 'unsigned long'.
> 
> When building the mlx5 driver on ARM, we get a warning about
> this:
> 
> infiniband/hw/mlx5/mem.c: In function 'mlx5_ib_cont_pages':
> infiniband/hw/mlx5/mem.c:84:143: warning: comparison of distinct pointer types lacks a cast
>      m = min(m, find_first_bit(&tmp, sizeof(tmp)));
> 
> This patch changes the driver to use min_t to make it behave
> the same way on all architectures.
> 
> Signed-off-by: Arnd Bergmann <arnd@...db.de>

Applied.
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