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Subject: Re: [PATCH v4 02/16] riscv: Use generic free_initrd_mem.
To:     Shea Levy <shea@shealevy.com>, linux-riscv@lists.infradead.org,
        linux-kernel@vger.kernel.org
Cc:     Palmer Dabbelt <palmer@sifive.com>, Albert Ou <albert@sifive.com>
References: <20180328152714.6103-1-shea@shealevy.com>
 <20180328203659.18692-1-shea@shealevy.com>
 <20180328203659.18692-3-shea@shealevy.com>
From:   Daniel Thompson <daniel.thompson@linaro.org>
Message-ID: <7fa4f27c-d421-38cd-aa16-445b364ed9eb@linaro.org>
Date:   Thu, 29 Mar 2018 10:52:48 +0100
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On 28/03/18 21:36, Shea Levy wrote:
> Signed-off-by: Shea Levy <shea@shealevy.com>
> ---
>   arch/riscv/mm/init.c | 6 ------
>   1 file changed, 6 deletions(-)
> 
> diff --git a/arch/riscv/mm/init.c b/arch/riscv/mm/init.c
> index c77df8142be2..36f83fe8a726 100644
> --- a/arch/riscv/mm/init.c
> +++ b/arch/riscv/mm/init.c
> @@ -62,9 +62,3 @@ void free_initmem(void)
>   {
>   	free_initmem_default(0);
>   }
> -
> -#ifdef CONFIG_BLK_DEV_INITRD
> -void free_initrd_mem(unsigned long start, unsigned long end)
> -{
> -}
> -#endif /* CONFIG_BLK_DEV_INITRD */

This looks like a change of behavior since the weakly defined code does 
not implement a nop.

I'm not saying the change is wrong, but if this is a deliberate bug fix 
then we need more than an empty commit message to explain what is 
happening here.


Daniel.