netlink: remove unused 'compare' function

No users in the tree.  Tested with allmodconfig build.

Signed-off-by: Florian Westphal <fw@strlen.de>
Link: https://lore.kernel.org/r/20230308142006.20879-1-fw@strlen.de
Signed-off-by: Jakub Kicinski <kuba@kernel.org>

diff --git a/include/linux/netlink.h b/include/linux/netlink.h
index c43ac76..3e87432 100644 (file)
--- a/include/linux/netlink.h
+++ b/include/linux/netlink.h
@@ -50,7 +50,6 @@ struct netlink_kernel_cfg {
        struct mutex    *cb_mutex;
        int             (*bind)(struct net *net, int group);
        void            (*unbind)(struct net *net, int group);
-       bool            (*compare)(struct net *net, struct sock *sk);
 };
 
 struct sock *__netlink_kernel_create(struct net *net, int unit,

diff --git a/net/netlink/af_netlink.c b/net/netlink/af_netlink.c
index c642776..877f1da 100644 (file)
--- a/net/netlink/af_netlink.c
+++ b/net/netlink/af_netlink.c
@@ -2097,8 +2097,6 @@ __netlink_kernel_create(struct net *net, int unit, struct module *module,
                        nl_table[unit].bind = cfg->bind;
                        nl_table[unit].unbind = cfg->unbind;
                        nl_table[unit].flags = cfg->flags;
-                       if (cfg->compare)
-                               nl_table[unit].compare = cfg->compare;
                }
                nl_table[unit].registered = 1;
        } else {

diff --git a/net/netlink/af_netlink.h b/net/netlink/af_netlink.h
index 5f454c8..90a3198 100644 (file)
--- a/net/netlink/af_netlink.h
+++ b/net/netlink/af_netlink.h
@@ -64,7 +64,6 @@ struct netlink_table {
        struct module           *module;
        int                     (*bind)(struct net *net, int group);
        void                    (*unbind)(struct net *net, int group);
-       bool                    (*compare)(struct net *net, struct sock *sock);
        int                     registered;
 };