On Thu, 16 Jan 2014 14:33:06 +0100 Philipp Hachtmann
<pha...@linux.vnet.ibm.com> wrote:
> This fixes an unused variable warning in nobootmem.c
>
> ...
>
> --- 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);
Yes, that is a bit of an eyesore. We often approach the problem this
way, which is nicer:
static unsigned long __init free_low_memory_core_early(void)
{
unsigned long count = 0;
phys_addr_t start, end;
u64 i;
for_each_free_mem_range(i, NUMA_NO_NODE, &start, &end, NULL)
count += __free_memory_core(start, end);
#ifdef CONFIG_ARCH_DISCARD_MEMBLOCK
{
phys_addr_t size;
/* Free memblock.reserved array if it was allocated */
size = get_allocated_memblock_reserved_regions_info(&start);
if (size)
count += __free_memory_core(start, start + size);
/* Free memblock.memory array if it was allocated */
size = get_allocated_memblock_memory_regions_info(&start);
if (size)
count += __free_memory_core(start, start + size);
}
#endif
return count;
}
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