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authorAditya Srivastava <yashsri421@gmail.com>2021-02-17 20:26:25 +0530
committerJonathan Corbet <corbet@lwn.net>2021-02-22 14:20:36 -0700
commit336ced2de62d27b5a1d64672d7470e0cc7f93376 (patch)
tree5797b1f963755d7cff184233e0ae7e701a26dd8a /scripts
parent163ba35ff3714d7ccb57f7e4bc2bb44365c343a0 (diff)
scripts: kernel-doc: fix array element capture in pointer-to-func parsing
Currently, kernel-doc causes an unexpected error when array element (i.e., "type (*foo[bar])(args)") is present as pointer parameter in pointer-to-function parsing. For e.g., running kernel-doc -none on kernel/gcov/gcc_4_7.c causes this error: "Use of uninitialized value $param in regexp compilation at ...", in combination with: "warning: Function parameter or member '' not described in 'gcov_info'" Here, the parameter parsing does not take into account the presence of array element (i.e. square brackets) in $param. Provide a simple fix by adding square brackets in the regex, responsible for capturing $param. A quick evaluation, by running 'kernel-doc -none' on entire kernel-tree, reveals that no additional warning or error has been added or removed by the fix. Suggested-by: Lukas Bulwahn <lukas.bulwahn@gmail.com> Signed-off-by: Aditya Srivastava <yashsri421@gmail.com> Tested-by: Lukas Bulwahn <lukas.bulwahn@gmail.com> Link: https://lore.kernel.org/r/20210217145625.14006-1-yashsri421@gmail.com Signed-off-by: Jonathan Corbet <corbet@lwn.net>
Diffstat (limited to 'scripts')
-rwxr-xr-xscripts/kernel-doc2
1 files changed, 1 insertions, 1 deletions
diff --git a/scripts/kernel-doc b/scripts/kernel-doc
index e046e16e4411..8b5bc7bf4bb8 100755
--- a/scripts/kernel-doc
+++ b/scripts/kernel-doc
@@ -1553,7 +1553,7 @@ sub create_parameterlist($$$$) {
} elsif ($arg =~ m/\(.+\)\s*\(/) {
# pointer-to-function
$arg =~ tr/#/,/;
- $arg =~ m/[^\(]+\(\*?\s*([\w\.]*)\s*\)/;
+ $arg =~ m/[^\(]+\(\*?\s*([\w\[\]\.]*)\s*\)/;
$param = $1;
$type = $arg;
$type =~ s/([^\(]+\(\*?)\s*$param/$1/;