netdev - Re: [patch] ipg: fix an unsigned widening cast of '~' truncation issue

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Message-Id: <20130515.145423.1386765446739602879.davem@davemloft.net>
Date:	Wed, 15 May 2013 14:54:23 -0700 (PDT)
From:	David Miller <davem@...emloft.net>
To:	dan.carpenter@...cle.com
Cc:	romieu@...zoreil.com, sorbica@...lus.com.tw,
	netdev@...r.kernel.org, kernel-janitors@...r.kernel.org
Subject: Re: [patch] ipg: fix an unsigned widening cast of '~' truncation
 issue

From: Dan Carpenter <dan.carpenter@...cle.com>
Date: Wed, 15 May 2013 10:20:02 +0300

> The bug here is this code from ipg_nic_hard_start_xmit():
> 
> 	txfd->tfc &= cpu_to_le64(~IPG_TFC_TFDDONE);
> 
> IPG_TFC_TFDDONE is 0x0000000080000000 so it's an unsigned int.  The
> negated value is 0x7fffffff but 0xffffffff7fffffff was intended.
> 
> The other values in this file don't need to be changed but I did it for
> consistency.
> 
> Signed-off-by: Dan Carpenter <dan.carpenter@...cle.com>

Applied.
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