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23e7b1bfed
Similar to commit 94e2238969e8 ("xfrm4: strip ECN bits from tos field"), clear the ECN bits from iph->tos when setting ->flowi4_tos. This ensures that the last bit of ->flowi4_tos is cleared, so ip_route_output_key_hash() isn't going to restrict the scope of the route lookup. Use ~INET_ECN_MASK instead of IPTOS_RT_MASK, because we have no reason to clear the high order bits. Found by code inspection, compile tested only. Fixes: 4da3089f2b58 ("[IPSEC]: Use TOS when doing tunnel lookups") Signed-off-by: Guillaume Nault <gnault@redhat.com> Signed-off-by: Jakub Kicinski <kuba@kernel.org>