[PATCH net] net: handle ARPHRD_PPP in dev_is_mac_header_xmit()

This kind of interface doesn't have a mac header. This patch fixes
bpf_redirect() to a ppp interface.

CC: stable@vger.kernel.org
Fixes: 27b29f63058d ("bpf: add bpf_redirect() helper")
Signed-off-by: Nicolas Dichtel <redacted>
---
 include/linux/if_arp.h | 1 +
 1 file changed, 1 insertion(+)

diff --git a/include/linux/if_arp.h b/include/linux/if_arp.h
index 1ed52441972f..8efbe29a6f0c 100644
--- a/include/linux/if_arp.h
+++ b/include/linux/if_arp.h

@@ -53,6 +53,7 @@ static inline bool dev_is_mac_header_xmit(const struct net_device *dev)
 	case ARPHRD_NONE:
 	case ARPHRD_RAWIP:
 	case ARPHRD_PIMREG:
+	case ARPHRD_PPP:
 		return false;
 	default:
 		return true;

-- 
2.39.2