From: Aichun Li liaichun@huawei.com
mainline inclusion from mainline-v5.11-rc5 commit 5a95cbb80ef8d8f2db29ab10777cd4742e6fc8ec category: bugfix bugzilla: 47241 CVE: NA
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Fix a redefinition of 'net_gen_cookie' error that was overlooked when net ns is not configured.
Fixes: f318903c0bf4 ("bpf: Add netns cookie and enable it for bpf cgroup hooks") Reported-by: kbuild test robot lkp@intel.com Signed-off-by: Daniel Borkmann daniel@iogearbox.net
Signed-off-by: Aichun Li liaichun@huawei.com Reviewed-by: Yue Haibing yuehaibing@huawei.com Reviewed-by: Di Zhu zhudi21@huawei.com Signed-off-by: Yang Yingliang yangyingliang@huawei.com --- include/net/net_namespace.h | 9 ++------- 1 file changed, 2 insertions(+), 7 deletions(-)
diff --git a/include/net/net_namespace.h b/include/net/net_namespace.h index 7fb3d0fb5ec29..dbfc56676eeef 100644 --- a/include/net/net_namespace.h +++ b/include/net/net_namespace.h @@ -204,6 +204,8 @@ extern struct list_head net_namespace_list; struct net *get_net_ns_by_pid(pid_t pid); struct net *get_net_ns_by_fd(int fd);
+u64 net_gen_cookie(struct net *net); + #ifdef CONFIG_SYSCTL void ipx_register_sysctl(void); void ipx_unregister_sysctl(void); @@ -252,8 +254,6 @@ static inline int check_net(const struct net *net)
void net_drop_ns(void *);
-u64 net_gen_cookie(struct net *net); - #else
static inline struct net *get_net(struct net *net) @@ -281,11 +281,6 @@ static inline int check_net(const struct net *net) return 1; }
-static inline u64 net_gen_cookie(struct net *net) -{ - return 0; -} - #define net_drop_ns NULL #endif