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Date:   Thu, 18 Jul 2013 12:23:30 +0530
From:   "Jayachandran C." <jchandra@broadcom.com>
To:     "Tony Wu" <tung7970@gmail.com>
cc:     ralf@linux-mips.org, linux-mips@linux-mips.org
Subject: Re: [PATCH 2/2] MIPS: tlbex: Guard tlbmiss_handler_setup_pgd
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On Wed, Jul 17, 2013 at 06:01:29PM +0800, Tony Wu wrote:
> tlbmiss_handler_setup_pgd* are only referenced when
> CONFIG_MIPS_PGD_C0_CONTEXT is defined.
> 
> Signed-off-by: Tony Wu <tung7970@gmail.com>
> Cc: Jayachandran C <jchandra@broadcom.com>
> ---
>  arch/mips/mm/tlb-funcs.S |    2 ++
>  1 file changed, 2 insertions(+)
> 
> diff --git a/arch/mips/mm/tlb-funcs.S b/arch/mips/mm/tlb-funcs.S
> index 30a494d..79bca31 100644
> --- a/arch/mips/mm/tlb-funcs.S
> +++ b/arch/mips/mm/tlb-funcs.S
> @@ -16,10 +16,12 @@
>  
>  #define FASTPATH_SIZE	128
>  
> +#ifdef CONFIG_MIPS_PGD_C0_CONTEXT
>  LEAF(tlbmiss_handler_setup_pgd)
>  	.space		16 * 4
>  END(tlbmiss_handler_setup_pgd)
>  EXPORT(tlbmiss_handler_setup_pgd_end)
> +#endif
>  
>  LEAF(handle_tlbm)
>  	.space		FASTPATH_SIZE * 4

There is a patchset planned which uses tlbmiss_handler_setup_pgd when
CONFIG_MIPS_PGD_C0_CONTEXT is not defined, but it did not make it into 3.11.

This change can be applied - but if it goes in, I will need to undo this
as part of the scratch patchset.

JC.