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From: Nick Desaulniers <ndesaulniers@google.com>
To: Matthew Wilcox <willy@infradead.org>
Cc: Nathan Chancellor <nathan@kernel.org>,
	Andrew Morton <akpm@linux-foundation.org>,
	 Linux Memory Management List <linux-mm@kvack.org>,
	Mike Rapoport <rppt@linux.ibm.com>,
	 clang-built-linux <clang-built-linux@googlegroups.com>,
	 Miguel Ojeda <miguel.ojeda.sandonis@gmail.com>,
	Jonathan Corbet <corbet@lwn.net>
Subject: Re: [PATCH] mm/gfp: Add kernel-doc for gfp_t
Date: Mon, 22 Feb 2021 09:04:40 -0800	[thread overview]
Message-ID: <CAKwvOdkV91grirj+1+OHongQriLYgL9v8m4V8PsguHecVyBwuQ@mail.gmail.com> (raw)
In-Reply-To: <20210219205403.GX2858050@casper.infradead.org>

On Fri, Feb 19, 2021 at 12:55 PM Matthew Wilcox <willy@infradead.org> wrote:
>
> On Fri, Feb 19, 2021 at 12:55:09PM -0700, Nathan Chancellor wrote:
> > On Mon, Feb 15, 2021 at 08:49:09PM +0000, Matthew Wilcox (Oracle) wrote:
> > > The generated html will link to the definition of the gfp_t automatically
> > > once we define it.  Move the one-paragraph overview of GFP flags from the
> > > documentation directory into gfp.h and pull gfp.h into the documentation.
> > >
> > > Signed-off-by: Matthew Wilcox (Oracle) <willy@infradead.org>
> >
> > This patch causes a clang warning in basically every file on linux-next
> > now:
> >
> > include/linux/gfp.h:20:32: warning: redefinition of typedef 'gfp_t' is a C11 feature [-Wtypedef-redefinition]
>
> Seems like it's also a gnu89 feature.

Is there a preprocessor define when using kernel doc that you could
guard the redefinition with?

See include/linux/phylink.h which uses:

#if 0 /* For kernel-doc purposes only. */

to guard definitions for kernel-doc.
-- 
Thanks,
~Nick Desaulniers


  parent reply	other threads:[~2021-02-22 17:04 UTC|newest]

Thread overview: 11+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2021-02-15 20:49 Matthew Wilcox (Oracle)
2021-02-15 21:07 ` Mike Rapoport
2021-02-19 19:55 ` Nathan Chancellor
2021-02-19 20:54   ` Matthew Wilcox
2021-02-19 21:45     ` Nick Desaulniers
2021-02-19 22:15       ` Miguel Ojeda
2021-02-19 22:49         ` Nick Desaulniers
2021-02-20  9:43           ` Miguel Ojeda
2021-02-22 17:04     ` Nick Desaulniers [this message]
2021-02-22 17:16       ` Matthew Wilcox
2021-02-22 17:34         ` Nick Desaulniers

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