xfrm4: Remove export declaration from xfrm4_protocol_init

From: Denis Efremov <[email protected]>

The function xfrm4_protocol_init is exported as GPL symbol and annotated as __init. That is reasonable only in the case when this function is called from another's module __init section. Otherwise, we will face section mismatch error. xfrm4_protocol_init is used in xfrm4_init along with xfrm4_state_init and xfrm4_policy_init. The last two functions are not exported as GPL symbols. According to this, it seem's like there is no reason to export xfrm4_protocol_init too. Fix potential section mismatch by removing export declaration from xfrm4_protocol_init.

Found by Linux Driver Verification project (linuxtesting.org).

---
 net/ipv4/xfrm4_protocol.c | 1 -
 1 file changed, 1 deletion(-)

index 8dd0e6ab8606..0e1f5dc2766b 100644
@@ -297,4 +297,3 @@ void __init xfrm4_protocol_init(void)
 {
 	xfrm_input_register_afinfo(&xfrm4_input_afinfo);
 }
-EXPORT_SYMBOL(xfrm4_protocol_init);

2.17.1