linux-kernel - Re: [PATCH] arm: 9016/2: Make symbol 'tmp_pmd

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Date:   Sat, 27 Mar 2021 10:20:12 +0000
From:   Russell King - ARM Linux admin <linux@...linux.org.uk>
To:     Shixin Liu <liushixin2@...wei.com>
Cc:     Andrey Ryabinin <ryabinin.a.a@...il.com>,
        Alexander Potapenko <glider@...gle.com>,
        Andrey Konovalov <andreyknvl@...il.com>,
        Dmitry Vyukov <dvyukov@...gle.com>, kasan-dev@...glegroups.com,
        linux-arm-kernel@...ts.infradead.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH] arm: 9016/2: Make symbol 'tmp_pmd_table' static

Why do you have 9016/2 in the subject line? That's an identifier from
the patch system which shouldn't be in the subject line.

If you want to refer to something already committed, please do so via
the sha1 git hash and quote the first line of the commit description
within ("...") in the body of your commit description.

Thanks.

On Sat, Mar 27, 2021 at 04:30:18PM +0800, Shixin Liu wrote:
> Symbol 'tmp_pmd_table' is not used outside of kasan_init.c and only used
> when CONFIG_ARM_LPAE enabled. So marks it static and add it into CONFIG_ARM_LPAE.
> 
> Signed-off-by: Shixin Liu <liushixin2@...wei.com>
> ---
>  arch/arm/mm/kasan_init.c | 4 +++-
>  1 file changed, 3 insertions(+), 1 deletion(-)
> 
> diff --git a/arch/arm/mm/kasan_init.c b/arch/arm/mm/kasan_init.c
> index 9c348042a724..3a06d3b51f97 100644
> --- a/arch/arm/mm/kasan_init.c
> +++ b/arch/arm/mm/kasan_init.c
> @@ -27,7 +27,9 @@
>  
>  static pgd_t tmp_pgd_table[PTRS_PER_PGD] __initdata __aligned(PGD_SIZE);
>  
> -pmd_t tmp_pmd_table[PTRS_PER_PMD] __page_aligned_bss;
> +#ifdef CONFIG_ARM_LPAE
> +static pmd_t tmp_pmd_table[PTRS_PER_PMD] __page_aligned_bss;
> +#endif
>  
>  static __init void *kasan_alloc_block(size_t size)
>  {
> -- 
> 2.25.1
> 
> 

-- 
RMK's Patch system: https://www.armlinux.org.uk/developer/patches/
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