4.4-stable review patch. If anyone has any objections, please let me know.
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From: Will Deacon will.deacon@arm.com
[ Upstream commit e814bccbafece52a24e152d2395b5d49eef55841 ]
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.
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@microsoft.com Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org --- scripts/kernel-doc | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)
--- a/scripts/kernel-doc +++ b/scripts/kernel-doc @@ -2742,4 +2742,4 @@ if ($verbose && $warnings) { print STDERR "$warnings warnings\n"; }
-exit($errors); +exit($output_mode eq "none" ? 0 : $errors);