[patch] net, filter: make new test_bpf depend on networking

[David Rientjes]

CONFIG_TEST_BPF depends on CONFIG_NET, otherwise the build fails:

ERROR: "sk_unattached_filter_destroy" [lib/test_bpf.ko] undefined!
ERROR: "kfree_skb" [lib/test_bpf.ko] undefined!
ERROR: "sk_unattached_filter_create" [lib/test_bpf.ko] undefined!
ERROR: "sk_run_filter_int_skb" [lib/test_bpf.ko] undefined!
ERROR: "__alloc_skb" [lib/test_bpf.ko] undefined!

Add the dependency.

Cc: Alexei Starovoitov <ast@xxxxxxxxxxxx>
Signed-off-by: David Rientjes <rientjes@xxxxxxxxxx>
---
 lib/Kconfig.debug | 1 +
 1 file changed, 1 insertion(+)

diff --git a/lib/Kconfig.debug b/lib/Kconfig.debug
--- a/lib/Kconfig.debug
+++ b/lib/Kconfig.debug
@@ -1639,6 +1639,7 @@ config TEST_USER_COPY
 config TEST_BPF
 	tristate "Test BPF filter functionality"
 	default n
+	depends on NET
 	depends on m
 	help
 	  This builds the "test_bpf" module that runs various test vectors
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