Commit e814bccb authored by Will Deacon's avatar Will Deacon Committed by Jonathan Corbet

scripts/kernel-doc: Don't fail with status != 0 if error encountered with -none

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 3a025e1d
("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

Cc: Matthew Wilcox <>
Cc: Jonathan Corbet <>
Signed-off-by: default avatarWill Deacon <>
Signed-off-by: default avatarJonathan Corbet <>
parent 4fbd8d19
......@@ -3248,4 +3248,4 @@ if ($verbose && $warnings) {
print STDERR "$warnings warnings\n";
exit($output_mode eq "none" ? 0 : $errors);
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