linux-kernel - Re: [PATCH] ixen-netback: fix trivial printf format build warning

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Message-ID: <CAEjAshoKmsbsUBJ-EzfaXwncNaxtsJCM+p_h92t3SZ+FAHEKsA@mail.gmail.com>
Date:	Thu, 27 Mar 2014 03:51:56 +0900
From:	SeongJae Park <sj38.park@...il.com>
To:	David Miller <davem@...emloft.net>
Cc:	Ian.Campbell@...rix.com, trivial@...nel.org, wei.liu2@...rix.com,
	xen-devel@...ts.xenproject.org,
	"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
	netdev@...r.kernel.org
Subject: Re: [PATCH] ixen-netback: fix trivial printf format build warning

On Thu, Mar 27, 2014 at 3:46 AM, David Miller <davem@...emloft.net> wrote:
> From: SeongJae Park <sj38.park@...il.com>
> Date: Wed, 26 Mar 2014 19:34:21 +0900
>
>> Thank you for let me know kindly :)
>
> Also your fix wasn't correct.
>
> You changed the code to use %lx but the type isn't a long.
>
> It's the difference between two pointers, which is ptrdiff_t.  The
> proper printf format string for a hexadecimal ptrdiff_t is %tx

You're right. Thanks for pointing that.
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