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authorJakub Kicinski <kuba@kernel.org>2024-05-15 07:29:56 -0700
committerJakub Kicinski <kuba@kernel.org>2024-05-15 07:30:49 -0700
commit621cde16e49b3ecf7d59a8106a20aaebfb4a59a9 (patch)
treebb4b8e255e276950c8d9502998f83a7f4f5bf5e9 /tools/testing/selftests/bpf/cgroup_helpers.c
parent317a215d493230da361028ea8a4675de334bfa1a (diff)
parent1b294a1f35616977caddaddf3e9d28e576a1adbc (diff)
Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net-next
Cross merge. Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Diffstat (limited to 'tools/testing/selftests/bpf/cgroup_helpers.c')
-rw-r--r--tools/testing/selftests/bpf/cgroup_helpers.c5
1 files changed, 4 insertions, 1 deletions
diff --git a/tools/testing/selftests/bpf/cgroup_helpers.c b/tools/testing/selftests/bpf/cgroup_helpers.c
index 19be9c63d5e8..23bb9a9e6a7d 100644
--- a/tools/testing/selftests/bpf/cgroup_helpers.c
+++ b/tools/testing/selftests/bpf/cgroup_helpers.c
@@ -429,7 +429,7 @@ int create_and_get_cgroup(const char *relative_path)
* which is an invalid cgroup id.
* If there is a failure, it prints the error to stderr.
*/
-unsigned long long get_cgroup_id_from_path(const char *cgroup_workdir)
+static unsigned long long get_cgroup_id_from_path(const char *cgroup_workdir)
{
int dirfd, err, flags, mount_id, fhsize;
union {
@@ -508,6 +508,9 @@ int cgroup_setup_and_join(const char *path) {
/**
* setup_classid_environment() - Setup the cgroupv1 net_cls environment
*
+ * This function should only be called in a custom mount namespace, e.g.
+ * created by running setup_cgroup_environment.
+ *
* After calling this function, cleanup_classid_environment should be called
* once testing is complete.
*