[PATCH iproute2 4/4] tc: make exec_util arg const

[Stephen Hemminger <stephen@networkplumber.org>]

The callbacks in exec_util should not be modifying underlying
qdisc operations structure.

Signed-off-by: Stephen Hemminger <stephen@networkplumber.org>
---
 tc/e_bpf.c   | 2 +-
 tc/tc_exec.c | 2 +-
 tc/tc_util.h | 2 +-
 3 files changed, 3 insertions(+), 3 deletions(-)

diff --git a/tc/e_bpf.c b/tc/e_bpf.c
index 79cddace96a4..cca853f95299 100644
--- a/tc/e_bpf.c
+++ b/tc/e_bpf.c
@@ -49,7 +49,7 @@ static int bpf_num_env_entries(void)
 	return num;
 }
 
-static int parse_bpf(struct exec_util *eu, int argc, char **argv)
+static int parse_bpf(const struct exec_util *eu, int argc, char **argv)
 {
 	char **argv_run = argv_default, **envp_run, *tmp;
 	int ret, i, env_old, env_num, env_map;
diff --git a/tc/tc_exec.c b/tc/tc_exec.c
index 182fbb4c35c9..fe9fdb1b5aa6 100644
--- a/tc/tc_exec.c
+++ b/tc/tc_exec.c
@@ -26,7 +26,7 @@ static void usage(void)
 		"OPTIONS := ... try tc exec <desired EXEC_KIND> help\n");
 }
 
-static int parse_noeopt(struct exec_util *eu, int argc, char **argv)
+static int parse_noeopt(const struct exec_util *eu, int argc, char **argv)
 {
 	if (argc) {
 		fprintf(stderr, "Unknown exec \"%s\", hence option \"%s\" is unparsable\n",
diff --git a/tc/tc_util.h b/tc/tc_util.h
index 5ae3fafd2dd2..bbb2961dfe93 100644
--- a/tc/tc_util.h
+++ b/tc/tc_util.h
@@ -68,7 +68,7 @@ struct action_util {
 struct exec_util {
 	struct exec_util *next;
 	char id[FILTER_NAMESZ];
-	int (*parse_eopt)(struct exec_util *eu, int argc, char **argv);
+	int (*parse_eopt)(const struct exec_util *eu, int argc, char **argv);
 };
 
 const char *get_tc_lib(void);
-- 
2.43.0