[PATCH docs-next v3 2/2] scripts: kernel-doc: fix macro handling in enums

[Pavan Kumar Linga <pavan.kumar.linga@xxxxxxxxx>]

drivers/net/ethernet/intel/idpf/idpf.h uses offsetof to
initialize the enum enumerators:

enum idpf_cap_field {
	IDPF_BASE_CAPS = -1,
	IDPF_CSUM_CAPS = offsetof(struct virtchnl2_get_capabilities,
				  csum_caps),
	IDPF_SEG_CAPS = offsetof(struct virtchnl2_get_capabilities,
				 seg_caps),
	IDPF_RSS_CAPS = offsetof(struct virtchnl2_get_capabilities,
				 rss_caps),
	IDPF_HSPLIT_CAPS = offsetof(struct virtchnl2_get_capabilities,
				    hsplit_caps),
	IDPF_RSC_CAPS = offsetof(struct virtchnl2_get_capabilities,
				 rsc_caps),
	IDPF_OTHER_CAPS = offsetof(struct virtchnl2_get_capabilities,
				   other_caps),
};

kernel-doc parses the above enumerator with a ',' inside the
macro and treats 'csum_caps', 'seg_caps' etc. also as enumerators
resulting in the warnings:

drivers/net/ethernet/intel/idpf/idpf.h:130: warning: Enum value
'csum_caps' not described in enum 'idpf_cap_field'
drivers/net/ethernet/intel/idpf/idpf.h:130: warning: Enum value
'seg_caps' not described in enum 'idpf_cap_field'
drivers/net/ethernet/intel/idpf/idpf.h:130: warning: Enum value
'rss_caps' not described in enum 'idpf_cap_field'
drivers/net/ethernet/intel/idpf/idpf.h:130: warning: Enum value
'hsplit_caps' not described in enum 'idpf_cap_field'
drivers/net/ethernet/intel/idpf/idpf.h:130: warning: Enum value
'rsc_caps' not described in enum 'idpf_cap_field'
drivers/net/ethernet/intel/idpf/idpf.h:130: warning: Enum value
'other_caps' not described in enum 'idpf_cap_field'

Fix it by removing the macro arguments within the parentheses.

Cc: Jonathan Corbet <corbet@xxxxxxx>
Signed-off-by: Pavan Kumar Linga <pavan.kumar.linga@xxxxxxxxx>
---
 scripts/kernel-doc | 1 +
 1 file changed, 1 insertion(+)

diff --git a/scripts/kernel-doc b/scripts/kernel-doc
index cfb1cb223508..6e199a745ccb 100755
--- a/scripts/kernel-doc
+++ b/scripts/kernel-doc
@@ -1353,6 +1353,7 @@ sub dump_enum($$) {
 	my %_members;
 
 	$members =~ s/\s+$//;
+	$members =~ s/\([^;]*?[\)]//g;
 
 	foreach my $arg (split ',', $members) {
 	    $arg =~ s/^\s*(\w+).*/$1/;
-- 
2.38.1