linux-kernel - Re: [PATCH] mm/nobootmem: Fix unused variable

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Date:	Thu, 16 Jan 2014 09:51:09 -0600
From:	Robin Holt <robinmholt@...il.com>
To:	Philipp Hachtmann <phacht@...ux.vnet.ibm.com>
Cc:	Andrew Morton <akpm@...ux-foundation.org>,
	Johannes Weiner <hannes@...xchg.org>, liuj97@...il.com,
	santosh.shilimkar@...com, grygorii.strashko@...com,
	iamjoonsoo.kim@....com, robin.m.holt@...il.com, yinghai@...nel.org,
	linux-mm@...ck.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH] mm/nobootmem: Fix unused variable

Argh.  Thought I had changed that to plain text mode before sending.

Sorry for the noise,
Robin


On Thu, Jan 16, 2014 at 9:45 AM, Robin Holt <robinmholt@...il.com> wrote:
>
> I can not see how this works.  How is the return from
> get_allocated_memblock_reserved_regions_info() stored and used without being
> declared?  Maybe you are working off a different repo than Linus' latest?  Your line
> 116 is my 114.  Maybe the message needs to be a bit more descriptive and
> certainly the bit after the '---' should be telling me what this is applying against.
>
> Robin
>
>
> On Thu, Jan 16, 2014 at 7:33 AM, Philipp Hachtmann <phacht@...ux.vnet.ibm.com> wrote:
>>
>> This fixes an unused variable warning in nobootmem.c
>>
>> Signed-off-by: Philipp Hachtmann <phacht@...ux.vnet.ibm.com>
>> ---
>>  mm/nobootmem.c | 6 +++++-
>>  1 file changed, 5 insertions(+), 1 deletion(-)
>>
>> diff --git a/mm/nobootmem.c b/mm/nobootmem.c
>> index e2906a5..12cbb04 100644
>> --- a/mm/nobootmem.c
>> +++ b/mm/nobootmem.c
>> @@ -116,9 +116,13 @@ static unsigned long __init __free_memory_core(phys_addr_t start,
>>  static unsigned long __init free_low_memory_core_early(void)
>>  {
>>         unsigned long count = 0;
>> -       phys_addr_t start, end, size;
>> +       phys_addr_t start, end;
>>         u64 i;
>>
>> +#ifdef CONFIG_ARCH_DISCARD_MEMBLOCK
>> +       phys_addr_t size;
>> +#endif
>> +
>>         for_each_free_mem_range(i, NUMA_NO_NODE, &start, &end, NULL)
>>                 count += __free_memory_core(start, end);
>>
>> --
>> 1.8.4.5
>>
>
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