From mboxrd@z Thu Jan  1 00:00:00 1970
From: Christoph Hellwig <hch@infradead.org>
Subject: Re: [PATCH V6 03/33] csky: Kernel booting
Date: Fri, 28 Sep 2018 09:13:05 -0700
Message-ID: <20180928161305.GB19827@infradead.org>
References: <cover.1538058840.git.ren_guo@c-sky.com>
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To: Guo Ren <ren_guo@c-sky.com>
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> +phys_addr_t __init_memblock memblock_end_of_REG0(void)
> +{
> +	return (memblock.memory.regions[0].base + memblock.memory.regions[0].size);
> +}

No need for the braces.

> +	if (memblock.memory.cnt > 1) {
> +		zone_size[ZONE_NORMAL]  = PFN_DOWN(memblock_start_of_REG1()) - min_low_pfn;
> +		zhole_size[ZONE_NORMAL] = PFN_DOWN(memblock_start_of_REG1()) - max_low_pfn;

Please brake lines after 80 characters.

> +	pr_info("C-SKY: https://github.com/c-sky/csky-linux\n");

I don't think this belongs into the kernel log.