Re: [PATCH] mm: Remove unwanted initialization in vmemmap_populate_compound_pages()

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On 6/12/22 19:23, Gautam Menghani wrote:
> Remove unwanted initialization for the variable 'next'. This fixes the
> clang scan warning: Value stored to 'next' during its initialization is 
> never read [deadcode.DeadStores]
> 
> Signed-off-by: Gautam Menghani <gautammenghani201@xxxxxxxxx>

Ugh, thanks for catching that:

Reviewed-by: Joao Martins <joao.m.martins@xxxxxxxxxx>

> ---
>  mm/sparse-vmemmap.c | 2 +-
>  1 file changed, 1 insertion(+), 1 deletion(-)
> 
> diff --git a/mm/sparse-vmemmap.c b/mm/sparse-vmemmap.c
> index f4fa61dbbee3..3008aa7859e0 100644
> --- a/mm/sparse-vmemmap.c
> +++ b/mm/sparse-vmemmap.c
> @@ -737,7 +737,7 @@ static int __meminit vmemmap_populate_compound_pages(unsigned long start_pfn,
>  
>  	size = min(end - start, pgmap_vmemmap_nr(pgmap) * sizeof(struct page));
>  	for (addr = start; addr < end; addr += size) {
> -		unsigned long next = addr, last = addr + size;
> +		unsigned long next, last = addr + size;
>  
>  		/* Populate the head page vmemmap page */
>  		pte = vmemmap_populate_address(addr, node, NULL, NULL);




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