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scripts/kernel-doc: Don't fail with status != 0 if error encountered with -none
[ Upstream commite814bccbaf
] 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 commit3a025e1d1c
("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. Cc: Matthew Wilcox <mawilcox@microsoft.com> Cc: Jonathan Corbet <corbet@lwn.net> Signed-off-by: Will Deacon <will.deacon@arm.com> Signed-off-by: Jonathan Corbet <corbet@lwn.net> Signed-off-by: Sasha Levin <alexander.levin@verizon.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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@ -3216,4 +3216,4 @@ if ($verbose && $warnings) {
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print STDERR "$warnings warnings\n";
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print STDERR "$warnings warnings\n";
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}
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}
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exit($errors);
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exit($output_mode eq "none" ? 0 : $errors);
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