linux-kernel - Re: [PATCH 07/14] MIPS: memblock: Mark present sparsemem sections

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Date:   Wed, 24 Jan 2018 07:13:03 +0100
From:   Marcin Nowakowski <marcin.nowakowski@...s.com>
To:     Serge Semin <fancer.lancer@...il.com>, <ralf@...ux-mips.org>,
        <miodrag.dinic@...s.com>, <jhogan@...nel.org>,
        <goran.ferenc@...s.com>, <david.daney@...ium.com>,
        <paul.gortmaker@...driver.com>, <paul.burton@...s.com>,
        <alex.belits@...ium.com>, <Steven.Hill@...ium.com>
CC:     <alexander.sverdlin@...ia.com>, <matt.redfearn@...s.com>,
        <kumba@...too.org>, <James.hogan@...s.com>,
        <Peter.Wotton@...s.com>, <Sergey.Semin@...latforms.ru>,
        <linux-mips@...ux-mips.org>, <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH 07/14] MIPS: memblock: Mark present sparsemem sections

Hi Serge,

On 17.01.2018 23:23, Serge Semin wrote:
> If sparsemem is activated all sections with present pages must
> be accordingly marked after memblock is fully initialized.
> 
> Signed-off-by: Serge Semin <fancer.lancer@...il.com>
> ---
>   arch/mips/kernel/setup.c | 7 ++++++-
>   1 file changed, 6 insertions(+), 1 deletion(-)
> 
> diff --git a/arch/mips/kernel/setup.c b/arch/mips/kernel/setup.c
> index b121fa702..6df1eaf38 100644
> --- a/arch/mips/kernel/setup.c
> +++ b/arch/mips/kernel/setup.c
> @@ -778,7 +778,7 @@ static void __init request_crashkernel(struct resource *res)
>   
>   static void __init arch_mem_init(char **cmdline_p)
>   {
> -	struct memblock_region *reg;
> +	struct memblock_region *reg __maybe_unused;

nit: reg is used here. It becomes __maybe_unused in patch 8.


Marcin