linux-kernel - Re: [PATCH 2/2] MIPS: Remove a warning when PHYS

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Date:   Wed, 14 Feb 2018 11:35:44 +0100
From:   Mathieu Malaterre <malat@...ian.org>
To:     James Hogan <james.hogan@...s.com>
Cc:     Ralf Baechle <ralf@...ux-mips.org>,
        Marcin Nowakowski <marcin.nowakowski@...s.com>,
        Miodrag Dinic <miodrag.dinic@...s.com>,
        Aleksandar Markovic <aleksandar.markovic@...s.com>,
        David Daney <david.daney@...ium.com>,
        linux-mips@...ux-mips.org, LKML <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH 2/2] MIPS: Remove a warning when PHYS_OFFSET is 0x0

On Tue, Jan 2, 2018 at 7:55 PM, Mathieu Malaterre <malat@...ian.org> wrote:
> Hi James,
>
> On Tue, Jan 2, 2018 at 10:31 AM, James Hogan <james.hogan@...s.com> wrote:
>> On Tue, Dec 26, 2017 at 12:37:14PM +0100, Mathieu Malaterre wrote:
>>> Rewrite the comparison in `else if` statement, case where `min_low_pfn >
>>> ARCH_PFN_OFFSET` has already been checked in the first `if` statement:
>>>
>>>   if (min_low_pfn > ARCH_PFN_OFFSET) {
>>>
>>> Fix non-fatal warning:
>>>
>>> arch/mips/kernel/setup.c: In function ‘bootmem_init’:
>>> arch/mips/kernel/setup.c:461:25: warning: comparison of unsigned expression < 0 is always false [-Wtype-limits]
>>>   } else if (min_low_pfn < ARCH_PFN_OFFSET) {
>>>                          ^
>>
>> What compiler version is that with out of interest? It isn't exactly new
>> code.
>
> I've clarified in v2, that this happen during compilation using W=1
>
> For reference:
>
> $ mipsel-linux-gnu-gcc -dumpversion
> 6.3.0
>
>
>>>
>>> Signed-off-by: Mathieu Malaterre <malat@...ian.org>
>>
>> Reviewed-by: James Hogan <jhogan@...nel.org>
>
> Thanks !

ping ?

https://patchwork.linux-mips.org/project/linux-mips/list/?series=623