netdev - Re: [PATCH net-next 1/6] 6lowpan: fix udp nullpointer dereferencing

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Message-ID: <20131114171758.GA10196@ws>
Date:	Thu, 14 Nov 2013 14:17:58 -0300
From:	Werner Almesberger <werner@...esberger.net>
To:	Alexander Aring <alex.aring@...il.com>
Cc:	alex.bluesman.smirnov@...il.com,
	linux-zigbee-devel@...ts.sourceforge.net,
	jukka.rissanen@...ux.intel.com, dbaryshkov@...il.com,
	netdev@...r.kernel.org
Subject: Re: [PATCH net-next 1/6] 6lowpan: fix udp nullpointer dereferencing

Alexander Aring wrote:
> -		**(hc06_ptr + 3) = (u8)(uh->dest - LOWPAN_NHC_UDP_8BIT_PORT);
> +		*(*hc06_ptr + 3) = (u8)(uh->dest - LOWPAN_NHC_UDP_8BIT_PORT);

This patch series looks like having an opportunity for killing some
unnecessary casts, too :) That is, unless you aim to be -Wconversion
clean, but the kernel is full of things -Wconversion would complain
about.

- Werner
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