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--- a/net/Kconfig
+++ b/net/Kconfig
@@ -95,6 +95,9 @@ source "net/netlabel/Kconfig"
endif # if INET
+config SOCK_DIAG
+ bool
+
config NETWORK_SECMARK
bool "Security Marking"
help
--- a/net/core/Makefile
+++ b/net/core/Makefile
@@ -9,8 +9,9 @@ obj-$(CONFIG_SYSCTL) += sysctl_net_core.
obj-y += dev.o ethtool.o dev_addr_lists.o dst.o netevent.o \
neighbour.o rtnetlink.o utils.o link_watch.o filter.o \
- sock_diag.o dev_ioctl.o tso.o sock_reuseport.o
+ dev_ioctl.o tso.o sock_reuseport.o
+obj-$(CONFIG_SOCK_DIAG) += sock_diag.o
obj-$(CONFIG_XFRM) += flow.o
obj-y += net-sysfs.o
obj-$(CONFIG_PROC_FS) += net-procfs.o
--- a/net/core/sock.c
+++ b/net/core/sock.c
@@ -1455,9 +1455,11 @@ void sk_destruct(struct sock *sk)
static void __sk_free(struct sock *sk)
{
+#ifdef CONFIG_SOCK_DIAG
if (unlikely(sock_diag_has_destroy_listeners(sk) && sk->sk_net_refcnt))
sock_diag_broadcast_destroy(sk);
else
+#endif
sk_destruct(sk);
}
--- a/net/ipv4/Kconfig
+++ b/net/ipv4/Kconfig
@@ -408,6 +408,7 @@ config INET_XFRM_MODE_BEET
config INET_DIAG
tristate "INET: socket monitoring interface"
+ select SOCK_DIAG
default y
---help---
Support for INET (TCP, DCCP, etc) socket monitoring interface used by
--- a/net/unix/Kconfig
+++ b/net/unix/Kconfig
@@ -22,6 +22,7 @@ config UNIX
config UNIX_DIAG
tristate "UNIX: socket monitoring interface"
depends on UNIX
+ select SOCK_DIAG
default n
---help---
Support for UNIX socket monitoring interface used by the ss tool.
--- a/net/netlink/Kconfig
+++ b/net/netlink/Kconfig
@@ -4,6 +4,7 @@
config NETLINK_DIAG
tristate "NETLINK: socket monitoring interface"
+ select SOCK_DIAG
default n
---help---
Support for NETLINK socket monitoring interface used by the ss tool.
--- a/net/packet/Kconfig
+++ b/net/packet/Kconfig
@@ -18,6 +18,7 @@ config PACKET
config PACKET_DIAG
tristate "Packet: sockets monitoring interface"
depends on PACKET
+ select SOCK_DIAG
default n
---help---
Support for PF_PACKET sockets monitoring interface used by the ss tool.
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