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Subject: Re: [PATCH 07/14] MIPS: memblock: Mark present sparsemem sections
To:     Serge Semin <fancer.lancer@gmail.com>, <ralf@linux-mips.org>,
        <miodrag.dinic@mips.com>, <jhogan@kernel.org>,
        <goran.ferenc@mips.com>, <david.daney@cavium.com>,
        <paul.gortmaker@windriver.com>, <paul.burton@mips.com>,
        <alex.belits@cavium.com>, <Steven.Hill@cavium.com>
CC:     <alexander.sverdlin@nokia.com>, <matt.redfearn@mips.com>,
        <kumba@gentoo.org>, <James.hogan@mips.com>,
        <Peter.Wotton@mips.com>, <Sergey.Semin@t-platforms.ru>,
        <linux-mips@linux-mips.org>, <linux-kernel@vger.kernel.org>
References: <20180117222312.14763-1-fancer.lancer@gmail.com>
 <20180117222312.14763-8-fancer.lancer@gmail.com>
From:   Marcin Nowakowski <marcin.nowakowski@mips.com>
Message-ID: <7246ebaa-0ffa-f012-c18e-269b1e0130e6@mips.com>
Date:   Wed, 24 Jan 2018 07:13:03 +0100
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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@gmail.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