linux-kernel - Re: [PATCHv2 1/2] mm: eliminate ifdef of HAVE_IOREMAP

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Message-ID: <YqmA5h5wCrrVCqoE@infradead.org>
Date:   Tue, 14 Jun 2022 23:49:10 -0700
From:   Christoph Hellwig <hch@...radead.org>
To:     Wang Wenhu <wenhu.wang@...mail.com>
Cc:     gregkh@...uxfoundation.org, arnd@...db.de, hao.wu@...el.com,
        trix@...hat.com, mdf@...nel.org, yilun.xu@...el.com,
        bhelgaas@...gle.com, akpm@...ux-foundation.org,
        linux-fpga@...r.kernel.org, linux-pci@...r.kernel.org,
        linux-mm@...ck.org, christophe.leroy@...roup.eu,
        linux-kernel@...r.kernel.org, linuxppc-dev@...ts.ozlabs.org,
        mpe@...erman.id.au
Subject: Re: [PATCHv2 1/2] mm: eliminate ifdef of HAVE_IOREMAP_PROT in .c
 files

Did you verify that all architectures actually provide a ioremap_prot
prototype?
The header situation for ioremap* is a mess unfortunately.