linux-kernel - Re: [PATCH v4 09/36] arm64: Implement the new page table range API

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Message-ID: <ZG7edJ+ovIqiULj+@casper.infradead.org>
Date:   Thu, 25 May 2023 05:05:08 +0100
From:   Matthew Wilcox <willy@...radead.org>
To:     Anshuman Khandual <anshuman.khandual@....com>
Cc:     linux-arch@...r.kernel.org, linux-mm@...ck.org,
        linux-kernel@...r.kernel.org,
        Catalin Marinas <catalin.marinas@....com>,
        linux-arm-kernel@...ts.infradead.org
Subject: Re: [PATCH v4 09/36] arm64: Implement the new page table range API

On Thu, May 25, 2023 at 09:05:35AM +0530, Anshuman Khandual wrote:
> > @@ -127,6 +127,8 @@ extern void copy_to_user_page(struct vm_area_struct *, struct page *,
> >   */
> >  #define ARCH_IMPLEMENTS_FLUSH_DCACHE_PAGE 1
> >  extern void flush_dcache_page(struct page *);
> > +void flush_dcache_folio(struct folio *);
> 
> This is giving a checkpatch.pl warning
> 
> WARNING: function definition argument 'struct folio *' should also have an identifier name
> #36: FILE: arch/arm64/include/asm/cacheflush.h:130:
> +void flush_dcache_folio(struct folio *);

Yes, but checkpatch is *stupid*.  Don't just follow tools blindly.
How is naming the parameter here helping anyone?