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Date:   Fri, 21 Aug 2020 06:46:02 +0100
From:   Christoph Hellwig <hch@infradead.org>
To:     Nicholas Piggin <npiggin@gmail.com>
Cc:     linux-mm@kvack.org, Andrew Morton <akpm@linux-foundation.org>,
        linux-kernel@vger.kernel.org, linux-arch@vger.kernel.org,
        linuxppc-dev@lists.ozlabs.org, Zefan Li <lizefan@huawei.com>,
        Jonathan Cameron <Jonathan.Cameron@huawei.com>
Subject: Re: [PATCH v5 5/8] mm: HUGE_VMAP arch support cleanup
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>  static int vmap_try_huge_pmd(pmd_t *pmd, unsigned long addr, unsigned long end,
> -			phys_addr_t phys_addr, pgprot_t prot)
> +			phys_addr_t phys_addr, pgprot_t prot, unsigned int max_page_shift)
>  {

... and here.