From: David S. Miller Date: Mon, 7 Feb 2022 11:18:49 +0000 (+0000) Subject: Merge branch 'ipv6-kfree_skb_reason' X-Git-Url: http://git.maquefel.me/?a=commitdiff_plain;h=47c1a9a4ea784db91de0000d8827472e2d4e4f84;p=linux.git Merge branch 'ipv6-kfree_skb_reason' Menglong Dong says: ==================== net: use kfree_skb_reason() for ip/udp packet receive In this series patches, kfree_skb() is replaced with kfree_skb_reason() during ipv4 and udp4 packet receiving path, and following drop reasons are introduced: SKB_DROP_REASON_SOCKET_FILTER SKB_DROP_REASON_NETFILTER_DROP SKB_DROP_REASON_OTHERHOST SKB_DROP_REASON_IP_CSUM SKB_DROP_REASON_IP_INHDR SKB_DROP_REASON_IP_RPFILTER SKB_DROP_REASON_UNICAST_IN_L2_MULTICAST SKB_DROP_REASON_XFRM_POLICY SKB_DROP_REASON_IP_NOPROTO SKB_DROP_REASON_SOCKET_RCVBUFF SKB_DROP_REASON_PROTO_MEM TCP is more complex, so I left it in the next series. I just figure out how __print_symbolic() works. It doesn't base on the array index, but searching for symbols by loop. So I'm a little afraid it's performance. Changes since v3: - fix some small problems in the third patch (net: ipv4: use kfree_skb_reason() in ip_rcv_core()), as David Ahern said Changes since v2: - use SKB_DROP_REASON_PKT_TOO_SMALL for a path in ip_rcv_core() Changes since v1: - add document for all drop reasons, as David advised - remove unreleated cleanup - remove EARLY_DEMUX and IP_ROUTE_INPUT drop reason - replace {UDP, TCP}_FILTER with SOCKET_FILTER ==================== Signed-off-by: David S. Miller --- 47c1a9a4ea784db91de0000d8827472e2d4e4f84