netlink: Move netlink attribute parsing support to lib
Netlink attribute parsing may be used even if CONFIG_NET is not set.
Move it from net/netlink to lib and control its inclusion based on the new
config symbol CONFIG_NLATTR, which is selected by CONFIG_NET.
Signed-off-by: Geert Uytterhoeven <Geert.Uytterhoeven@sonycom.com>
Acked-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
diff --git a/lib/Kconfig b/lib/Kconfig
index 03c2c24..cea9e30 100644
--- a/lib/Kconfig
+++ b/lib/Kconfig
@@ -174,4 +174,10 @@
bool "Disable obsolete cpumask functions" if DEBUG_PER_CPU_MAPS
depends on EXPERIMENTAL && BROKEN
+#
+# Netlink attribute parsing support is select'ed if needed
+#
+config NLATTR
+ bool
+
endmenu
diff --git a/lib/Makefile b/lib/Makefile
index 32b0e64..b2c09da 100644
--- a/lib/Makefile
+++ b/lib/Makefile
@@ -84,6 +84,8 @@
obj-$(CONFIG_DYNAMIC_PRINTK_DEBUG) += dynamic_printk.o
+obj-$(CONFIG_NLATTR) += nlattr.o
+
hostprogs-y := gen_crc32table
clean-files := crc32table.h
diff --git a/net/netlink/attr.c b/lib/nlattr.c
similarity index 100%
rename from net/netlink/attr.c
rename to lib/nlattr.c
diff --git a/net/Kconfig b/net/Kconfig
index cdb8fde..eab40a4 100644
--- a/net/Kconfig
+++ b/net/Kconfig
@@ -4,6 +4,7 @@
menuconfig NET
bool "Networking support"
+ select NLATTR
---help---
Unless you really know what you are doing, you should say Y here.
The reason is that some programs need kernel networking support even
diff --git a/net/netlink/Makefile b/net/netlink/Makefile
index e3589c2..bdd6ddf 100644
--- a/net/netlink/Makefile
+++ b/net/netlink/Makefile
@@ -2,4 +2,4 @@
# Makefile for the netlink driver.
#
-obj-y := af_netlink.o attr.o genetlink.o
+obj-y := af_netlink.o genetlink.o
