Re: [PATCH] misc: suppress build warning

From: Prabhakar Lad
Date: Thu Dec 04 2014 - 10:13:35 EST


On Thu, Dec 4, 2014 at 2:59 PM, Arnd Bergmann <arnd@xxxxxxxx> wrote:
> On Thursday 04 December 2014 14:38:30 Lad, Prabhakar wrote:
>> this patch fixes following build warning:
>>
>> drivers/misc/ioc4.c: In function âioc4_probeâ:
>> drivers/misc/ioc4.c:194:16: warning: âstartâ may be used uninitialized in this function [-Wmaybe-uninitialized]
>> period = (end - start) /
>> ^
>> drivers/misc/ioc4.c:148:11: note: âstartâ was declared here
>> uint64_t start, end, period;
>>
>> Signed-off-by: Lad, Prabhakar <prabhakar.csengg@xxxxxxxxx>
>
> Please explain why the compiler thinks there is a bug, why you
> are sure that there isn't, and why you picked '0' as the
> initialization value.
>
Its a false positive, to suppress the warning '0' was picked.

Thanks,
--Prabhakar Lad
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