kernel-doc fails to parse function definitions like the one below

efi_status_t efi_create_event(uint32_t type, efi_uintn_t notify_tpl,
                              void (EFIAPI *notify_function) (
                                        struct efi_event *event,
                                        void *context),
                              void *notify_context, efi_guid_t *group,
                              struct efi_event **event)
{

due to the "EFIAPI" attribute preceding the function name.

Signed-off-by: Heinrich Schuchardt <xypron.g...@gmx.de>
---
I am submitted the same patch to the Kernel upstream:
https://lkml.org/lkml/2018/9/3/1185
---
 scripts/kernel-doc | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/scripts/kernel-doc b/scripts/kernel-doc
index 31a34ced55a3..597e3223b791 100755
--- a/scripts/kernel-doc
+++ b/scripts/kernel-doc
@@ -1381,7 +1381,7 @@ sub create_parameterlist($$$$) {
        } elsif ($arg =~ m/\(.+\)\s*\(/) {
            # pointer-to-function
            $arg =~ tr/#/,/;
-           $arg =~ m/[^\(]+\(\*?\s*([\w\.]*)\s*\)/;
+           $arg =~ m/[^\(]+\([\w\s]*\*?\s*([\w\.]*)\s*\)/;
            $param = $1;
            $type = $arg;
            $type =~ s/([^\(]+\(\*?)\s*$param/$1/;
-- 
2.18.0

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