[less-CONFIG_NET 4/7] seccomp: include nlattr

[Norbert Manthey <nmanthey@amazon.de>]

When we want to use CONFIG_SECCOMP_FILTER without CONFIG_NET, we have
to ensure that the required files that would be pulled in via
CONFIG_NET are compiled when dropping CONFIG_NET.

Here, we could also select CONFIG_NLATTR instead of pulling the file
in explicitly. One could go even one step further and cut the only
required function off, namely nla_find.

This is part of the effort to split CONFIG_SECCOMP_FILTER and
CONFIG_NET.

Signed-off-by: Norbert Manthey <nmanthey@amazon.de>
---
 lib/Makefile | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/lib/Makefile b/lib/Makefile
index ce20696..bbe09f3 100644
--- a/lib/Makefile
+++ b/lib/Makefile
@@ -163,7 +163,9 @@ obj-$(CONFIG_HAVE_ARCH_TRACEHOOK) += syscall.o
 
 obj-$(CONFIG_DYNAMIC_DEBUG) += dynamic_debug.o
 
-obj-$(CONFIG_NLATTR) += nlattr.o
+ifneq ($(filter y,$(CONFIG_NLATTR) $(CONFIG_SECCOMP_FILTER)),)
+obj-y += nlattr.o
+endif
 
 obj-$(CONFIG_LRU_CACHE) += lru_cache.o
 
-- 
2.7.4

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