Re: [PATCH] include/linux/skbuff.h: using '0xffff' instead of '~0U'
From: Chen Gang
Date: Mon Jun 03 2013 - 05:24:48 EST
On 06/01/2013 05:05 AM, Andy Shevchenko wrote:
> On Thu, May 30, 2013 at 9:03 AM, Chen Gang <gang.chen@xxxxxxxxxxx> wrote:
>> > Both 'transport_header' and 'mac_header' are u16, which are never equal
>> > to '~0U'.
>> > So need use '0xffff' instead of '~0U'.
> Why not "(u16)~0" ?
> Or even better "!= USHORT_MAX"?
> Or mac_header + 1 == 0, though it less clear.
It seems they are just the same as '0xffff' (are all 'magic' number).
We'd better to give a meaningful name to it just like Ben said.
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