bpf: Constify ctl_table argument of filter function

The sysctl core is moving to allow "struct ctl_table" in read-only memory.
As a preparation for that all functions handling "struct ctl_table" need
to be able to work with "const struct ctl_table".
As __cgroup_bpf_run_filter_sysctl() does not modify its table, it can be
adapted trivially.

Signed-off-by: Thomas Weißschuh <linux@weissschuh.net>
Signed-off-by: Joel Granados <joel.granados@kernel.org>

1 files changed, 1 insertions, 1 deletions

diff --git a/include/linux/bpf-cgroup.h b/include/linux/bpf-cgroup.h
index ce91d9b2acb9..4dd17128b204 100644
--- a/include/linux/bpf-cgroup.h
+++ b/include/linux/bpf-cgroup.h
@@ -138,7 +138,7 @@ int __cgroup_bpf_check_dev_permission(short dev_type, u32 major, u32 minor,
 				      short access, enum cgroup_bpf_attach_type atype);
 
 int __cgroup_bpf_run_filter_sysctl(struct ctl_table_header *head,
-				   struct ctl_table *table, int write,
+				   const struct ctl_table *table, int write,
 				   char **buf, size_t *pcount, loff_t *ppos,
 				   enum cgroup_bpf_attach_type atype);