linux-kernel - Re: [PATCH v5 2/3] memblock: add memblock_free() alloc when CONFIG_HAVE

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Date:   Mon, 5 Mar 2018 16:00:09 -0800
From:   Andrew Morton <akpm@...ux-foundation.org>
To:     frowand.list@...il.com
Cc:     Rob Herring <robh+dt@...nel.org>, Michal Hocko <mhocko@...e.com>,
        Catalin Marinas <catalin.marinas@....com>,
        Pavel Tatashin <pasha.tatashin@...cle.com>,
        Vlastimil Babka <vbabka@...e.cz>, cpandya@...eaurora.org,
        devicetree@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH v5 2/3] memblock: add memblock_free() alloc when
 CONFIG_HAVE_MEMBLOCK is not set

On Sun,  4 Mar 2018 16:14:48 -0800 frowand.list@...il.com wrote:

> From: Frank Rowand <frank.rowand@...y.com>
> 
> When CONFIG_HAVE_MEMBLOCK is not set, an error version of
> memblock_alloc() exists.  Add the matching memblock_free().
> 
> Signed-off-by: Frank Rowand <frank.rowand@...y.com>
> ---
> 
> Andrew or Michal, can you please ack this patch to be accepted
> by Rob?
> 
> 
> With "of: add early boot allocation of
> of_find_node_by_phandle() cache" applied, kbuild test robot reports
> tilex architecture build error due to no prototype for memblock_free().
> 
> The version of the patch that kbuild test robot reported was
> "[PATCH v4 2/2] of: add early boot allocation of
> of_find_node_by_phandle() cache".  An updated version of that
> patch is now patch 3/3 of this series.
> 
> ...
>
> --- a/include/linux/memblock.h
> +++ b/include/linux/memblock.h
> @@ -432,6 +432,10 @@ static inline unsigned long memblock_reserved_memory_within(phys_addr_t start_ad
>  	return 0;
>  }
>  
> +static inline int memblock_free(phys_addr_t base, phys_addr_t size)
> +{
> +	return 0;
> +}
>  #endif /* CONFIG_HAVE_MEMBLOCK */
>  
>  #endif /* __KERNEL__ */

Acked-by: Andrew Morton <akpm@...ux-foundation.org>