[PATCH] selftests: netfilter: Remove unused variables in conntrack_dump_flush

From: Qingshuang Fu

Date: Thu Aug 06 2026 - 03:56:12 EST


From: Qingshuang Fu <fuqingshuang@xxxxxxxxxx>

The variables 'rplnlh' in conntrack_data_insert() and 'rplnlh' together
with 'nest' in conntracK_count_zone() and conntrack_flush_zone() were
declared but never used since they were introduced.

Similarly, commit 76342e842587 ("selftests: netfilter: remove unused
parameter") removed the unused 'err' variable from these functions but
overlooked the remaining unused 'rplnlh' and 'nest' variables. Remove
them to clean up the code.

Fixes: eff3c558bb7e ("netfilter: ctnetlink: support filtering by zone")
Signed-off-by: Qingshuang Fu <fuqingshuang@xxxxxxxxxx>
---
.../testing/selftests/net/netfilter/conntrack_dump_flush.c | 7 ++-----
1 file changed, 2 insertions(+), 5 deletions(-)

diff --git a/tools/testing/selftests/net/netfilter/conntrack_dump_flush.c b/tools/testing/selftests/net/netfilter/conntrack_dump_flush.c
index 5cecb8a1bc94..c8e4794ec5cb 100644
--- a/tools/testing/selftests/net/netfilter/conntrack_dump_flush.c
+++ b/tools/testing/selftests/net/netfilter/conntrack_dump_flush.c
@@ -102,7 +102,6 @@ static int conntrack_data_insert(struct mnl_socket *sock, struct nlmsghdr *nlh,
uint16_t zone)
{
char buf[MNL_SOCKET_BUFFER_SIZE];
- struct nlmsghdr *rplnlh;
unsigned int portid;
int ret;

@@ -219,9 +218,8 @@ static int count_entries(const struct nlmsghdr *nlh, void *data)
static int conntracK_count_zone(struct mnl_socket *sock, uint16_t zone)
{
char buf[MNL_SOCKET_BUFFER_SIZE];
- struct nlmsghdr *nlh, *rplnlh;
+ struct nlmsghdr *nlh;
struct nfgenmsg *nfh;
- struct nlattr *nest;
unsigned int portid;
int ret;

@@ -266,9 +264,8 @@ static int conntracK_count_zone(struct mnl_socket *sock, uint16_t zone)
static int conntrack_flush_zone(struct mnl_socket *sock, uint16_t zone)
{
char buf[MNL_SOCKET_BUFFER_SIZE];
- struct nlmsghdr *nlh, *rplnlh;
+ struct nlmsghdr *nlh;
struct nfgenmsg *nfh;
- struct nlattr *nest;
unsigned int portid;
int ret;


base-commit: 0d839570765118029aa8bf4a95444c6a11aacf85
--
2.25.1