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Date:   Wed, 29 Nov 2017 09:12:14 -0700
From:   Jonathan Corbet <corbet@....net>
To:     Will Deacon <will.deacon@....com>
Cc:     linux-kernel@...r.kernel.org, mawilcox@...rosoft.com
Subject: Re: [PATCH 1/3] scripts/kernel-doc: Don't fail with status != 0 if
 error encountered with -none

On Wed, 29 Nov 2017 15:20:03 +0000
Will Deacon <will.deacon@....com> wrote:

> My bisect scripts starting running into build failures when trying to
> compile 4.15-rc1 with the builds failing with things like:
> 
> drivers/net/wireless/broadcom/brcm80211/brcmfmac/sdio.c:2078: error: Cannot parse struct or union!
> 
> The line in question is actually just a #define, but after some digging
> it turns out that my scripts pass W=1 and since commit 3a025e1d1c2ea
> ("Add optional check for bad kernel-doc comments") that results in
> kernel-doc running on each source file. The file in question has a
> badly formatted comment immediately before the #define:
> 
> /**
>  * struct brcmf_skbuff_cb reserves first two bytes in sk_buff::cb for
>  * bus layer usage.
>  */
> 
> which causes the regex in dump_struct to fail (lack of braces following
> struct declaration) and kernel-doc returns 1, which causes the build
> to fail.
> 
> Fix the issue by always returning 0 from kernel-doc when invoked with
> -none. It successfully generates no documentation, and prints out any
> issues.

That seems like a worthy fix.  I can take this one and ship it up with a
few other docs fixes in the near future, thanks.

jon

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