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Petr Machata 672d3ca2f3 net: sch_prio: When ungrafting, replace with FIFO 
[ Upstream commit 240ce7f642 ]

When a child Qdisc is removed from one of the PRIO Qdisc's bands, it is
replaced unconditionally by a NOOP qdisc. As a result, any traffic hitting
that band gets dropped. That is incorrect--no Qdisc was explicitly added
when PRIO was created, and after removal, none should have to be added
either.

Fix PRIO by first attempting to create a default Qdisc and only falling
back to noop when that fails. This pattern of attempting to create an
invisible FIFO, using NOOP only as a fallback, is also seen in other
Qdiscs.

Fixes: 1da177e4c3 ("Linux-2.6.12-rc2")
Signed-off-by: Petr Machata <petrm@mellanox.com>
Acked-by: Jiri Pirko <jiri@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2020-01-12 12:17:29 +01:00
..
6lowpan
9p 9p: Transport error uninitialized 2019-10-11 18:21:12 +02:00
802
8021q vlan: vlan_changelink() should propagate errors 2020-01-12 12:17:28 +01:00
appletalk appletalk: Set error code if register_snap_client failed 2019-12-13 08:52:59 +01:00
atm net: use skb_queue_empty_lockless() in poll() handlers 2019-11-10 11:27:48 +01:00
ax25 ax25: enforce CAP_NET_RAW for raw sockets 2019-10-05 13:09:32 +02:00
batman-adv batman-adv: Avoid free/alloc race when handling OGM buffer 2019-11-06 13:06:22 +01:00
bluetooth Bluetooth: Fix memory leak in hci_connect_le_scan 2020-01-09 10:19:04 +01:00
bpf
bpfilter net: bpfilter: use get_pid_task instead of pid_task 2018-10-17 22:03:40 -07:00
bridge net: add bool confirm_neigh parameter for dst_ops.update_pmtu 2020-01-04 19:13:37 +01:00
caif net: use skb_queue_empty_lockless() in poll() handlers 2019-11-10 11:27:48 +01:00
can can: gw: Fix error path of cgw_module_init 2019-08-29 08:28:30 +02:00
ceph libceph: fix PG split vs OSD (re)connect race 2019-08-29 08:28:50 +02:00
core bpf: Clear skb->tstamp in bpf_redirect when necessary 2020-01-12 12:17:15 +01:00
dcb
dccp inet: stop leaking jiffies on the wire 2019-11-10 11:27:37 +01:00
decnet net: add bool confirm_neigh parameter for dst_ops.update_pmtu 2020-01-04 19:13:37 +01:00
dns_resolver
dsa net: dsa: fix switch tree list 2019-11-10 11:27:53 +01:00
ethernet net: add annotations on hh->hh_len lockless accesses 2020-01-09 10:19:09 +01:00
hsr net/hsr: fix possible crash in add_timer() 2019-03-19 13:12:38 +01:00
ieee802154 ieee802154: enforce CAP_NET_RAW for raw sockets 2019-10-05 13:09:32 +02:00
ife
ipv4 tcp: fix "old stuff" D-SACK causing SACK to be treated as D-SACK 2020-01-12 12:17:27 +01:00
ipv6 tcp: annotate tp->rcv_nxt lockless reads 2020-01-09 10:19:08 +01:00
iucv Revert "net: simplify sock_poll_wait" 2018-11-04 14:50:51 +01:00
kcm kcm: switch order of device registration to fix a crash 2019-04-17 08:38:40 +02:00
key af_key: fix leaks in key_pol_get_resp and dump_sp. 2019-07-26 09:14:01 +02:00
l2tp compat_ioctl: pppoe: fix PPPOEIOCSFWD handling 2019-08-09 17:52:34 +02:00
l3mdev
lapb lapb: fixed leak of control-blocks. 2019-06-22 08:15:13 +02:00
llc llc2: Fix return statement of llc_stat_ev_rx_null_dsap_xid_c (and _test_c) 2020-01-12 12:17:23 +01:00
mac80211 mac80211: consider QoS Null frames for STA_NULLFUNC_ACKED 2019-12-31 16:36:13 +01:00
mac802154
mpls mpls: Return error for RTA_GATEWAY attribute 2019-03-10 07:17:19 +01:00
ncsi
netfilter netfilter: nf_tables: validate NFT_DATA_VALUE after nft_data_init() 2020-01-12 12:17:09 +01:00
netlabel netlabel: fix out-of-bounds memory accesses 2019-03-10 07:17:18 +01:00
netlink genetlink: Fix a memory leak on error path 2019-04-03 06:26:15 +02:00
netrom netrom: hold sock when setting skb->destructor 2019-07-28 08:29:27 +02:00
nfc net: nfc: nci: fix a possible sleep-in-atomic-context bug in nci_uart_tty_receive() 2019-12-31 16:34:38 +01:00
nsh
openvswitch openvswitch: support asymmetric conntrack 2019-12-21 10:57:14 +01:00
packet af_packet: set defaule value for tmo 2019-12-31 16:34:35 +01:00
phonet net: use skb_queue_empty_lockless() in poll() handlers 2019-11-10 11:27:48 +01:00
psample net: psample: fix skb_over_panic 2019-12-05 09:21:30 +01:00
qrtr net: qrtr: fix memort leak in qrtr_tun_write_iter 2019-12-13 08:52:58 +01:00
rds net/rds: Fix error handling in rds_ib_add_one() 2019-10-07 18:57:24 +02:00
rfkill rfkill: Fix incorrect check to avoid NULL pointer dereference 2020-01-12 12:17:17 +01:00
rose net/rose: fix unbound loop in rose_loopback_timer() 2019-05-02 09:59:00 +02:00
rxrpc rxrpc: Fix possible NULL pointer access in ICMP handling 2020-01-09 10:19:08 +01:00
sched net: sch_prio: When ungrafting, replace with FIFO 2020-01-12 12:17:29 +01:00
sctp sctp: free cmd->obj.chunk for the unprocessed SCTP_CMD_REPLY 2020-01-12 12:17:27 +01:00
smc net/smc: do not wait under send_lock 2019-12-17 20:35:33 +01:00
strparser net: strparser: partially revert "strparser: Call skb_unclone conditionally" 2019-05-16 19:41:27 +02:00
sunrpc sunrpc: fix crash when cache_head become valid before update 2019-12-17 20:35:52 +01:00
switchdev
tipc tipc: fix ordering of tipc module init and exit routine 2019-12-21 10:57:16 +01:00
tls net: tls, fix sk_write_space NULL write when tx disabled 2019-09-06 10:22:04 +02:00
unix net: fix warning in af_unix 2019-12-01 09:16:33 +01:00
vmw_vsock VSOCK: bind to random port for VMADDR_PORT_ANY 2019-12-05 09:20:19 +01:00
wimax
wireless cfg80211: call disconnect_wk when AP stops 2019-12-01 09:17:34 +01:00
x25 net/x25: fix null_x25_address handling 2019-12-13 08:52:15 +01:00
xdp xsk: proper AF_XDP socket teardown ordering 2019-11-24 08:20:32 +01:00
xfrm xfrm interface: fix management of phydev 2019-12-13 08:52:42 +01:00
compat.c sock: Make sock->sk_stamp thread-safe 2019-01-09 17:38:33 +01:00
Kconfig
Makefile
socket.c net: make socket read/write_iter() honor IOCB_NOWAIT 2020-01-09 10:18:57 +01:00
sysctl_net.c