David S. Miller [Mon, 17 Jul 2017 16:48:07 +0000 (09:48 -0700)]
Merge branch 'xdp-redirect'
John Fastabend says:
====================
Implement XDP bpf_redirect
This series adds two new XDP helper routines bpf_redirect() and
bpf_redirect_map(). The first variant bpf_redirect() is meant
to be used the same way it is currently being used by the cls_bpf
classifier. An xdp packet will be redirected immediately when this
is called.
The other variant bpf_redirect_map(map, key, flags) uses a new
map type called devmap. A devmap uses integers as keys and
net_devices as values. The user provies key/ifindex pairs to
update the map with new net_devices. This provides two benefits
over the normal variant 'bpf_redirect()'. First the datapath
bpf program is abstracted away from using hard-coded ifindex
values. Allowing a single bpf program to be run any many different
environments. Second, and perhaps more important, the map enables
batching packet transmits. The map plus small driver changes
allows for batching all send requests across a NAPI poll loop.
This allows driver writers to optimize the driver xmit path
and only call expensive operations once for a batch of xdp_buffs.
The devmap was designed to support possible future work for
multicast and broadcast as follow-up patches.
To see, in more detail, how to leverage the new helpers and
map from the userspace side please review these two patches,
xdp: sample program for new bpf_redirect helper
xdp: bpf redirect with map sample program
Performance numbers provided by Jesper are the following, tested
using the ixgbe driver with CPU E5-1650 v4 @ 3.60GHz:
13,939,674 pkt/s = XDP_DROP without touching memory
14,290,650 pkt/s = xdp1: XDP_DROP with reading packet data
13,221,812 pkt/s = xdp2: XDP_TX with swap mac (writes into pkt)
7,596,576 pkt/s = xdp_redirect: XDP_REDIRECT with swap mac (like XDP_TX)
13,058,435 pkt/s = xdp_redirect_map:XDP_REDIRECT with swap mac + devmap
A big thanks to everyone who helped with this series. Jesper
provided fixes, debugging, code review, performance benchmarks!
Daniel provided lots of useful feedback and code review. And last
but not least Andy provided useful feedback related to supporting
additional drivers, generic xdp implementation, testing, etc. Any
other feedback is welcome but I believe at this point these are
ready to be merged!
Whats left... get the rest of the drivers developers to implement
this in all the drivers.
====================
Signed-off-by: David S. Miller <davem@davemloft.net>
John Fastabend [Mon, 17 Jul 2017 16:30:25 +0000 (09:30 -0700)]
xdp: bpf redirect with map sample program
Signed-off-by: John Fastabend <john.fastabend@gmail.com>
Tested-by: Andy Gospodarek <andy@greyhouse.net>
Acked-by: Daniel Borkmann <daniel@iogearbox.net>
Acked-by: Jesper Dangaard Brouer <brouer@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
John Fastabend [Mon, 17 Jul 2017 16:30:02 +0000 (09:30 -0700)]
net: add notifier hooks for devmap bpf map
The BPF map devmap holds a refcnt on the net_device structure when
it is in the map. We need to do this to ensure on driver unload we
don't lose a dev reference.
However, its not very convenient to have to manually unload the map
when destroying a net device so add notifier handlers to do the cleanup
automatically. But this creates a race between update/destroy BPF
syscall and programs and the unregister netdev hook.
Unfortunately, the best I could come up with is either to live with
requiring manual removal of net devices from the map before removing
the net device OR to add a mutex in devmap to ensure the map is not
modified while we are removing a device. The fallout also requires
that BPF programs no longer update/delete the map from the BPF program
side because the mutex may sleep and this can not be done from inside
an rcu critical section. This is not a real problem though because I
have not come up with any use cases where this is actually useful in
practice. If/when we come up with a compelling user for this we may
need to revisit this.
Signed-off-by: John Fastabend <john.fastabend@gmail.com>
Acked-by: Daniel Borkmann <daniel@iogearbox.net>
Acked-by: Jesper Dangaard Brouer <brouer@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
John Fastabend [Mon, 17 Jul 2017 16:29:40 +0000 (09:29 -0700)]
xdp: Add batching support to redirect map
For performance reasons we want to avoid updating the tail pointer in
the driver tx ring as much as possible. To accomplish this we add
batching support to the redirect path in XDP.
This adds another ndo op "xdp_flush" that is used to inform the driver
that it should bump the tail pointer on the TX ring.
Signed-off-by: John Fastabend <john.fastabend@gmail.com>
Signed-off-by: Jesper Dangaard Brouer <brouer@redhat.com>
Acked-by: Daniel Borkmann <daniel@iogearbox.net>
Signed-off-by: David S. Miller <davem@davemloft.net>
John Fastabend [Mon, 17 Jul 2017 16:29:18 +0000 (09:29 -0700)]
bpf: add bpf_redirect_map helper routine
BPF programs can use the devmap with a bpf_redirect_map() helper
routine to forward packets to netdevice in map.
Signed-off-by: John Fastabend <john.fastabend@gmail.com>
Signed-off-by: Jesper Dangaard Brouer <brouer@redhat.com>
Acked-by: Daniel Borkmann <daniel@iogearbox.net>
Signed-off-by: David S. Miller <davem@davemloft.net>
John Fastabend [Mon, 17 Jul 2017 16:28:56 +0000 (09:28 -0700)]
bpf: add devmap, a map for storing net device references
Device map (devmap) is a BPF map, primarily useful for networking
applications, that uses a key to lookup a reference to a netdevice.
The map provides a clean way for BPF programs to build virtual port
to physical port maps. Additionally, it provides a scoping function
for the redirect action itself allowing multiple optimizations. Future
patches will leverage the map to provide batching at the XDP layer.
Another optimization/feature, that is not yet implemented, would be
to support multiple netdevices per key to support efficient multicast
and broadcast support.
Signed-off-by: John Fastabend <john.fastabend@gmail.com>
Acked-by: Daniel Borkmann <daniel@iogearbox.net>
Acked-by: Jesper Dangaard Brouer <brouer@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
John Fastabend [Mon, 17 Jul 2017 16:28:35 +0000 (09:28 -0700)]
xdp: add trace event for xdp redirect
This adds a trace event for xdp redirect which may help when debugging
XDP programs that use redirect bpf commands.
Signed-off-by: John Fastabend <john.fastabend@gmail.com>
Acked-by: Daniel Borkmann <daniel@iogearbox.net>
Acked-by: Jesper Dangaard Brouer <brouer@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
John Fastabend [Mon, 17 Jul 2017 16:28:12 +0000 (09:28 -0700)]
ixgbe: add initial support for xdp redirect
There are optimizations we can add after the basic feature is
enabled. But, for now keep the patch simple.
Signed-off-by: John Fastabend <john.fastabend@gmail.com>
Acked-by: Daniel Borkmann <daniel@iogearbox.net>
Acked-by: Jesper Dangaard Brouer <brouer@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
John Fastabend [Mon, 17 Jul 2017 16:27:50 +0000 (09:27 -0700)]
net: implement XDP_REDIRECT for xdp generic
Add support for redirect to xdp generic creating a fall back for
devices that do not yet have support and allowing test infrastructure
using veth pairs to be built.
Signed-off-by: John Fastabend <john.fastabend@gmail.com>
Tested-by: Andy Gospodarek <andy@greyhouse.net>
Acked-by: Daniel Borkmann <daniel@iogearbox.net>
Acked-by: Jesper Dangaard Brouer <brouer@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
John Fastabend [Mon, 17 Jul 2017 16:27:28 +0000 (09:27 -0700)]
xdp: sample program for new bpf_redirect helper
This implements a sample program for testing bpf_redirect. It reports
the number of packets redirected per second and as input takes the
ifindex of the device to run the xdp program on and the ifindex of the
interface to redirect packets to.
Signed-off-by: John Fastabend <john.fastabend@gmail.com>
Tested-by: Andy Gospodarek <andy@greyhouse.net>
Acked-by: Daniel Borkmann <daniel@iogearbox.net>
Acked-by: Jesper Dangaard Brouer <brouer@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
John Fastabend [Mon, 17 Jul 2017 16:27:07 +0000 (09:27 -0700)]
xdp: add bpf_redirect helper function
This adds support for a bpf_redirect helper function to the XDP
infrastructure. For now this only supports redirecting to the egress
path of a port.
In order to support drivers handling a xdp_buff natively this patches
uses a new ndo operation ndo_xdp_xmit() that takes pushes a xdp_buff
to the specified device.
If the program specifies either (a) an unknown device or (b) a device
that does not support the operation a BPF warning is thrown and the
XDP_ABORTED error code is returned.
Signed-off-by: John Fastabend <john.fastabend@gmail.com>
Acked-by: Daniel Borkmann <daniel@iogearbox.net>
Acked-by: Jesper Dangaard Brouer <brouer@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
John Fastabend [Mon, 17 Jul 2017 16:26:45 +0000 (09:26 -0700)]
net: xdp: support xdp generic on virtual devices
XDP generic allows users to test XDP programs and/or run them with
degraded performance on devices that do not yet support XDP. For
testing I typically test eBPF programs using a set of veth devices.
This allows testing topologies that would otherwise be difficult to
setup especially in the early stages of development.
This patch adds a xdp generic hook to the netif_rx_internal()
function which is called from dev_forward_skb(). With this addition
attaching XDP programs to veth devices works as expected! Also I
noticed multiple drivers using netif_rx(). These devices will also
benefit and generic XDP will work for them as well.
Signed-off-by: John Fastabend <john.fastabend@gmail.com>
Tested-by: Andy Gospodarek <andy@greyhouse.net>
Acked-by: Daniel Borkmann <daniel@iogearbox.net>
Acked-by: Jesper Dangaard Brouer <brouer@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
John Fastabend [Mon, 17 Jul 2017 16:26:24 +0000 (09:26 -0700)]
ixgbe: NULL xdp_tx rings on resource cleanup
tx_rings and rx_rings are cleaned up on close paths in ixgbe driver
however, xdp_rings are not. Set the xdp_rings to NULL here so that
we can use the pointer to indicate if the XDP rings are initialized.
Signed-off-by: John Fastabend <john.fastabend@gmail.com>
Acked-by: Daniel Borkmann <daniel@iogearbox.net>
Acked-by: Jesper Dangaard Brouer <brouer@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
David S. Miller [Mon, 17 Jul 2017 16:19:40 +0000 (09:19 -0700)]
Merge branch 'mlxsw-traps'
Jiri Pirko says:
====================
mlxsw: Traps enhancements
Ido says:
The first patch makes sure the driver marks packets that were trapped
in the router and might have already been flooded by the bridge, so that
the bridge driver won't flood them again. This isn't critical at this time
point, but will be when Neighbour Discovery traps are introduced as these
are multicast packets that are trapped in the router.
The second and third patches add new traps - for MLD and Router Alert
packets. The last patch takes advantage of that and floods IPv6
unregistered multicast packets only to mrouter ports instead of all ports.
====================
Signed-off-by: David S. Miller <davem@davemloft.net>
Arkadi Sharshevsky [Mon, 17 Jul 2017 12:15:32 +0000 (14:15 +0200)]
mlxsw: spectrum: Improve IPv6 unregistered multicast flooding
Up until now IPv6 unregistered multicast traffic would be flooded like
broadcast, even when MLD snooping was enabled on the bridge. This was
intentional as MLD packet traps were missing, preventing the bridge
driver from programming MDB entries to the device.
Previous patch added these traps, so we can now finally flood IPv6
unregistered multicast packets to specific ports via the multicast table
instead of flooding them to all ports via the broadcast table.
Signed-off-by: Arkadi Sharshevsky <arkadis@mellanox.com>
Signed-off-by: Ido Schimmel <idosch@mellanox.com>
Signed-off-by: Jiri Pirko <jiri@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Arkadi Sharshevsky [Mon, 17 Jul 2017 12:15:31 +0000 (14:15 +0200)]
mlxsw: spectrum: Add support for IPv6 MLDv1/2 traps
Add support for IPv6 MLDv1/2 packet trapping.
Signed-off-by: Arkadi Sharshevsky <arkadis@mellanox.com>
Signed-off-by: Ido Schimmel <idosch@mellanox.com>
Signed-off-by: Jiri Pirko <jiri@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Ido Schimmel [Mon, 17 Jul 2017 12:15:30 +0000 (14:15 +0200)]
mlxsw: spectrum: Trap IPv4 packets with Router Alert option
In case local sockets have the IP_ROUTER_ALERT socket option set, then
they expect to get packets with the Router Alert option.
Trap such packets, so that the kernel could inspect them and potentially
send them to interested sockets.
Signed-off-by: Ido Schimmel <idosch@mellanox.com>
Signed-off-by: Jiri Pirko <jiri@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Ido Schimmel [Mon, 17 Jul 2017 12:15:29 +0000 (14:15 +0200)]
mlxsw: spectrum: Mark packets trapped in router
In commit
1c6c6d221e2b ("mlxsw: spectrum: Mirror certain packets to
CPU") we marked packets that were mirrored to the CPU, so that they
won't be flooded again by the bridge driver.
However, certain packets are trapped in the device's router block, after
passing through the bridge block where they were potentially flooded.
Mark all packets coming from L3 traps, so that they won't be potentially
flooded again by the bridge driver.
Signed-off-by: Ido Schimmel <idosch@mellanox.com>
Signed-off-by: Jiri Pirko <jiri@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
David S. Miller [Mon, 17 Jul 2017 16:18:24 +0000 (09:18 -0700)]
Merge branch 'mlxsw-ttl-tos'
Jiri Pirko says:
====================
mlxsw: offloading matches on ip ttl and tos
Or says:
Support offloading matches on ip ttl and tos
====================
Signed-off-by: David S. Miller <davem@davemloft.net>
Or Gerlitz [Mon, 17 Jul 2017 12:07:31 +0000 (14:07 +0200)]
mlxsw: spectrum_flower: Add support for ip tos
Support offloading rules that match on ip tos.
Signed-off-by: Or Gerlitz <ogerlitz@mellanox.com>
Signed-off-by: Jiri Pirko <jiri@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Or Gerlitz [Mon, 17 Jul 2017 12:07:30 +0000 (14:07 +0200)]
mlxsw: spectrum: Add tos to the ipv4 acl block
Add ecn and dscp fields to the ipv4 acl block.
Signed-off-by: Or Gerlitz <ogerlitz@mellanox.com>
Signed-off-by: Jiri Pirko <jiri@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Or Gerlitz [Mon, 17 Jul 2017 12:07:29 +0000 (14:07 +0200)]
mlxsw: acl: Add ip tos acl element
Define new element for ip tos (ecn, dscp) and place it into scratch area.
Signed-off-by: Or Gerlitz <ogerlitz@mellanox.com>
Signed-off-by: Jiri Pirko <jiri@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Or Gerlitz [Mon, 17 Jul 2017 12:07:28 +0000 (14:07 +0200)]
mlxsw: spectrum_flower: Add support for ip ttl
Support offloading rules that match on ip ttl.
Signed-off-by: Or Gerlitz <ogerlitz@mellanox.com>
Signed-off-by: Jiri Pirko <jiri@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Or Gerlitz [Mon, 17 Jul 2017 12:07:27 +0000 (14:07 +0200)]
mlxsw: spectrum: Add ttl to the ipv4 acl block
Add ttl field to the ipv4 acl block.
Signed-off-by: Or Gerlitz <ogerlitz@mellanox.com>
Signed-off-by: Jiri Pirko <jiri@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Or Gerlitz [Mon, 17 Jul 2017 12:07:26 +0000 (14:07 +0200)]
mlxsw: acl: Add ip ttl acl element
Define new element for ip ttl and place it into scratch area.
Signed-off-by: Or Gerlitz <ogerlitz@mellanox.com>
Signed-off-by: Jiri Pirko <jiri@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Eric Dumazet [Mon, 17 Jul 2017 09:56:10 +0000 (02:56 -0700)]
inetpeer: remove AVL implementation in favor of RB tree
As discussed in Faro during Netfilter Workshop 2017, RB trees can be
used with RCU, using a seqlock.
Note that net/rxrpc/conn_service.c is already using this.
This patch converts inetpeer from AVL tree to RB tree, since it allows
to remove private AVL implementation in favor of shared RB code.
$ size net/ipv4/inetpeer.before net/ipv4/inetpeer.after
text data bss dec hex filename
3195 40 128 3363 d23 net/ipv4/inetpeer.before
1562 24 0 1586 632 net/ipv4/inetpeer.after
The same technique can be used to speed up
net/netfilter/nft_set_rbtree.c (removing rwlock contention in fast path)
Signed-off-by: Eric Dumazet <edumazet@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
David Herrmann [Mon, 17 Jul 2017 09:35:54 +0000 (11:35 +0200)]
net/unix: drop obsolete fd-recursion limits
All unix sockets now account inflight FDs to the respective sender.
This was introduced in:
commit
712f4aad406bb1ed67f3f98d04c044191f0ff593
Author: willy tarreau <w@1wt.eu>
Date: Sun Jan 10 07:54:56 2016 +0100
unix: properly account for FDs passed over unix sockets
and further refined in:
commit
415e3d3e90ce9e18727e8843ae343eda5a58fad6
Author: Hannes Frederic Sowa <hannes@stressinduktion.org>
Date: Wed Feb 3 02:11:03 2016 +0100
unix: correctly track in-flight fds in sending process user_struct
Hence, regardless of the stacking depth of FDs, the total number of
inflight FDs is limited, and accounted. There is no known way for a
local user to exceed those limits or exploit the accounting.
Furthermore, the GC logic is independent of the recursion/stacking depth
as well. It solely depends on the total number of inflight FDs,
regardless of their layout.
Lastly, the current `recursion_level' suffers a TOCTOU race, since it
checks and inherits depths only at queue time. If we consider `A<-B' to
mean `queue-B-on-A', the following sequence circumvents the recursion
level easily:
A<-B
B<-C
C<-D
...
Y<-Z
resulting in:
A<-B<-C<-...<-Z
With all of this in mind, lets drop the recursion limit. It has no
additional security value, anymore. On the contrary, it randomly
confuses message brokers that try to forward file-descriptors, since
any sendmsg(2) call can fail spuriously with ETOOMANYREFS if a client
maliciously modifies the FD while inflight.
Cc: Alban Crequy <alban.crequy@collabora.co.uk>
Cc: Simon McVittie <simon.mcvittie@collabora.co.uk>
Signed-off-by: David Herrmann <dh.herrmann@gmail.com>
Reviewed-by: Tom Gundersen <teg@jklm.no>
Signed-off-by: David S. Miller <davem@davemloft.net>
linzhang [Mon, 17 Jul 2017 09:25:02 +0000 (17:25 +0800)]
skbuff: optimize the pull_pages code in __pskb_pull_tail()
In the pull_pages code block, if the first frag size > eat,
we can end the loop in advance to avoid extra copy.
Signed-off-by: Lin Zhang <xiaolou4617@gmail.com>
Acked-by: Eric Dumazet <edumazet@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Biju Das [Mon, 17 Jul 2017 08:33:52 +0000 (09:33 +0100)]
dt-bindings: net: ravb : Add support for r8a7743 SoC
Add a new compatible string for the RZ/G1M (R8A7743) SoC.
Signed-off-by: Biju Das <biju.das@bp.renesas.com>
Reviewed-by: Geert Uytterhoeven <geert+renesas@glider.be>
Reviewed-by: Simon Horman <horms+renesas@verge.net.au>
Signed-off-by: David S. Miller <davem@davemloft.net>
Alvaro G. M [Mon, 17 Jul 2017 07:12:28 +0000 (09:12 +0200)]
net: axienet: add support for standard phy-mode binding
Keep supporting proprietary "xlnx,phy-type" attribute and add support for
MII connectivity to the PHY.
Reviewed-by: Andrew Lunn <andrew@lunn.ch>
Signed-off-by: Alvaro Gamez Machado <alvaro.gamez@hazent.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
David S. Miller [Mon, 17 Jul 2017 03:52:15 +0000 (20:52 -0700)]
Merge branch 'sctp-typedef-remove-part-2'
Xin Long says:
====================
sctp: remove typedefs from structures part 2
As we know, typedef is suggested not to use in kernel, even checkpatch.pl
also gives warnings about it. Now sctp is using it for many structures.
All this kind of typedef's using should be removed. This patchset is the
part 2 to remove it for another 11 basic structures.
Just as the part 1, No any code's logic would be changed in these patches,
only cleaning up.
Note that v1->v2, nothing changed, just because net-next were closed when
posting v1.
====================
Signed-off-by: David S. Miller <davem@davemloft.net>
Xin Long [Mon, 17 Jul 2017 03:29:59 +0000 (11:29 +0800)]
sctp: remove the typedef sctp_hmac_algo_param_t
This patch is to remove the typedef sctp_hmac_algo_param_t, and
replace with struct sctp_hmac_algo_param in the places where it's
using this typedef.
It is also to use sizeof(variable) instead of sizeof(type).
Signed-off-by: Xin Long <lucien.xin@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Xin Long [Mon, 17 Jul 2017 03:29:58 +0000 (11:29 +0800)]
sctp: remove the typedef sctp_chunks_param_t
This patch is to remove the typedef sctp_chunks_param_t, and
replace with struct sctp_chunks_param in the places where it's
using this typedef.
It is also to use sizeof(variable) instead of sizeof(type).
Signed-off-by: Xin Long <lucien.xin@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Xin Long [Mon, 17 Jul 2017 03:29:57 +0000 (11:29 +0800)]
sctp: remove the typedef sctp_random_param_t
This patch is to remove the typedef sctp_random_param_t, and
replace with struct sctp_random_param in the places where it's
using this typedef.
Signed-off-by: Xin Long <lucien.xin@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Xin Long [Mon, 17 Jul 2017 03:29:56 +0000 (11:29 +0800)]
sctp: remove the typedef sctp_supported_ext_param_t
This patch is to remove the typedef sctp_supported_ext_param_t, and
replace with struct sctp_supported_ext_param in the places where it's
using this typedef.
It is also to use sizeof(variable) instead of sizeof(type).
Signed-off-by: Xin Long <lucien.xin@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Xin Long [Mon, 17 Jul 2017 03:29:55 +0000 (11:29 +0800)]
sctp: remove the typedef sctp_adaptation_ind_param_t
This patch is to remove the typedef sctp_adaptation_ind_param_t, and
replace with struct sctp_adaptation_ind_param in the places where it's
using this typedef.
Signed-off-by: Xin Long <lucien.xin@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Xin Long [Mon, 17 Jul 2017 03:29:54 +0000 (11:29 +0800)]
sctp: remove struct sctp_ecn_capable_param
Remove it, there is even no places using it.
Signed-off-by: Xin Long <lucien.xin@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Xin Long [Mon, 17 Jul 2017 03:29:53 +0000 (11:29 +0800)]
sctp: remove the typedef sctp_supported_addrs_param_t
This patch is to remove the typedef sctp_supported_addrs_param_t, and
replace with struct sctp_supported_addrs_param in the places where it's
using this typedef.
Signed-off-by: Xin Long <lucien.xin@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Xin Long [Mon, 17 Jul 2017 03:29:52 +0000 (11:29 +0800)]
sctp: remove the typedef sctp_hostname_param_t
Remove this typedef, there is even no places using it.
Signed-off-by: Xin Long <lucien.xin@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Xin Long [Mon, 17 Jul 2017 03:29:51 +0000 (11:29 +0800)]
sctp: remove the typedef sctp_cookie_preserve_param_t
This patch is to remove the typedef sctp_cookie_preserve_param_t, and
replace with struct sctp_cookie_preserve_param in the places where it's
using this typedef.
It is also to fix some indents in sctp_sf_do_5_2_6_stale().
Signed-off-by: Xin Long <lucien.xin@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Xin Long [Mon, 17 Jul 2017 03:29:50 +0000 (11:29 +0800)]
sctp: remove the typedef sctp_ipv6addr_param_t
This patch is to remove the typedef sctp_ipv6addr_param_t, and replace
with struct sctp_ipv6addr_param in the places where it's using this
typedef.
Signed-off-by: Xin Long <lucien.xin@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Xin Long [Mon, 17 Jul 2017 03:29:49 +0000 (11:29 +0800)]
sctp: remove the typedef sctp_ipv4addr_param_t
This patch is to remove the typedef sctp_ipv4addr_param_t, and replace
with struct sctp_ipv4addr_param in the places where it's using this
typedef.
Signed-off-by: Xin Long <lucien.xin@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Sowmini Varadhan [Sun, 16 Jul 2017 23:43:46 +0000 (16:43 -0700)]
rds: cancel send/recv work before queuing connection shutdown
We could end up executing rds_conn_shutdown before the rds_recv_worker
thread, then rds_conn_shutdown -> rds_tcp_conn_shutdown can do a
sock_release and set sock->sk to null, which may interleave in bad
ways with rds_recv_worker, e.g., it could result in:
"BUG: unable to handle kernel NULL pointer dereference at
0000000000000078"
[
ffff881769f6fd70] release_sock at
ffffffff815f337b
[
ffff881769f6fd90] rds_tcp_recv at
ffffffffa043c888 [rds_tcp]
[
ffff881769f6fdb0] rds_recv_worker at
ffffffffa04a4810 [rds]
[
ffff881769f6fde0] process_one_work at
ffffffff810a14c1
[
ffff881769f6fe40] worker_thread at
ffffffff810a1940
[
ffff881769f6fec0] kthread at
ffffffff810a6b1e
Also, do not enqueue any new shutdown workq items when the connection is
shutting down (this may happen for rds-tcp in softirq mode, if a FIN
or CLOSE is received while the modules is in the middle of an unload)
Signed-off-by: Sowmini Varadhan <sowmini.varadhan@oracle.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
David S. Miller [Sun, 16 Jul 2017 23:38:03 +0000 (16:38 -0700)]
Merge branch 'atm-constify-atm-pci_device_id'
Arvind Yadav says:
====================
atm: constify atm pci_device_id.
pci_device_id are not supposed to change at runtime. All functions
working with pci_device_id provided by <linux/pci.h> work with
const pci_device_id. So mark the non-const structs as const.
====================
Signed-off-by: David S. Miller <davem@davemloft.net>
Arvind Yadav [Sun, 16 Jul 2017 09:32:40 +0000 (15:02 +0530)]
atm: idt77252: constify pci_device_id.
pci_device_id are not supposed to change at runtime. All functions
working with pci_device_id provided by <linux/pci.h> work with
const pci_device_id. So mark the non-const structs as const.
File size before:
text data bss dec hex filename
27702 468 16 28186 6e1a drivers/atm/idt77252.o
File size After adding 'const':
text data bss dec hex filename
27766 404 16 28186 6e1a drivers/atm/idt77252.o
Signed-off-by: Arvind Yadav <arvind.yadav.cs@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Arvind Yadav [Sun, 16 Jul 2017 09:32:39 +0000 (15:02 +0530)]
atm: eni: constify pci_device_id.
pci_device_id are not supposed to change at runtime. All functions
working with pci_device_id provided by <linux/pci.h> work with
const pci_device_id. So mark the non-const structs as const.
File size before:
text data bss dec hex filename
21565 352 56 21973 55d5 drivers/atm/eni.o
File size After adding 'const':
text data bss dec hex filename
21661 256 56 21973 55d5 drivers/atm/eni.o
Signed-off-by: Arvind Yadav <arvind.yadav.cs@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Arvind Yadav [Sun, 16 Jul 2017 09:32:38 +0000 (15:02 +0530)]
atm: firestream: constify pci_device_id.
pci_device_id are not supposed to change at runtime. All functions
working with pci_device_id provided by <linux/pci.h> work with
const pci_device_id. So mark the non-const structs as const.
File size before:
text data bss dec hex filename
16884 444 28 17356 43cc drivers/atm/firestream.o
File size After adding 'const':
text data bss dec hex filename
16980 348 28 17356 43cc drivers/atm/firestream.o
Signed-off-by: Arvind Yadav <arvind.yadav.cs@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Arvind Yadav [Sun, 16 Jul 2017 09:32:37 +0000 (15:02 +0530)]
atm: zatm: constify pci_device_id.
pci_device_id are not supposed to change at runtime. All functions
working with pci_device_id provided by <linux/pci.h> work with
const pci_device_id. So mark the non-const structs as const.
File size before:
text data bss dec hex filename
14350 352 40 14742 3996 drivers/atm/zatm.o
File size After adding 'const':
text data bss dec hex filename
14446 256 40 14742 3996 drivers/atm/zatm.o
Signed-off-by: Arvind Yadav <arvind.yadav.cs@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Arvind Yadav [Sun, 16 Jul 2017 09:32:36 +0000 (15:02 +0530)]
atm: lanai: constify pci_device_id.
pci_device_id are not supposed to change at runtime. All functions
working with pci_device_id provided by <linux/pci.h> work with
const pci_device_id. So mark the non-const structs as const.
File size before:
text data bss dec hex filename
18074 352 0 18426 47fa drivers/atm/lanai.o
File size After adding 'const':
text data bss dec hex filename
18170 256 0 18426 47fa drivers/atm/lanai.o
Signed-off-by: Arvind Yadav <arvind.yadav.cs@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Arvind Yadav [Sun, 16 Jul 2017 09:32:35 +0000 (15:02 +0530)]
atm: solos-pci: constify pci_device_id.
pci_device_id are not supposed to change at runtime. All functions
working with pci_device_id provided by <linux/pci.h> work with
const pci_device_id. So mark the non-const structs as const.
File size before:
text data bss dec hex filename
16138 4592 24 20754 5112 drivers/atm/solos-pci.o
File size After adding 'const':
text data bss dec hex filename
16218 4528 24 20754 5122 drivers/atm/solos-pci.o
Signed-off-by: Arvind Yadav <arvind.yadav.cs@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Arvind Yadav [Sun, 16 Jul 2017 09:32:34 +0000 (15:02 +0530)]
atm: horizon: constify pci_device_id.
pci_device_id are not supposed to change at runtime. All functions
working with pci_device_id provided by <linux/pci.h> work with
const pci_device_id. So mark the non-const structs as const.
File size before:
text data bss dec hex filename
9859 328 6 10193 27d1 drivers/atm/horizon.o
File size After adding 'const':
text data bss dec hex filename
9923 264 6 10193 27d1 drivers/atm/horizon.o
Signed-off-by: Arvind Yadav <arvind.yadav.cs@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Arvind Yadav [Sun, 16 Jul 2017 09:32:33 +0000 (15:02 +0530)]
atm: he: constify pci_device_id.
pci_device_id are not supposed to change at runtime. All functions
working with pci_device_id provided by <linux/pci.h> work with
const pci_device_id. So mark the non-const structs as const.
File size before:
text data bss dec hex filename
26514 440 48 27002 697a drivers/atm/he.o
File size After adding 'const':
text data bss dec hex filename
26578 376 48 27002 697a drivers/atm/he.o
Signed-off-by: Arvind Yadav <arvind.yadav.cs@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Arvind Yadav [Sun, 16 Jul 2017 09:32:32 +0000 (15:02 +0530)]
atm: nicstar: constify pci_device_id.
pci_device_id are not supposed to change at runtime. All functions
working with pci_device_id provided by <linux/pci.h> work with
const pci_device_id. So mark the non-const structs as const.
File size before:
text data bss dec hex filename
22781 464 128 23373 5b4d drivers/atm/nicstar.o
File size After adding 'const':
text data bss dec hex filename
22845 400 128 23373 5b4d drivers/atm/nicstar.o
Signed-off-by: Arvind Yadav <arvind.yadav.cs@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Arvind Yadav [Sun, 16 Jul 2017 09:32:31 +0000 (15:02 +0530)]
atm: fore200e: constify pci_device_id.
pci_device_id are not supposed to change at runtime. All functions
working with pci_device_id provided by <linux/pci.h> work with
const pci_device_id. So mark the non-const structs as const.
File size before:
text data bss dec hex filename
20025 320 16 20361 4f89 drivers/atm/fore200e.o
File size After adding 'const':
text data bss dec hex filename
20089 256 16 20361 4f89 drivers/atm/fore200e.o
Signed-off-by: Arvind Yadav <arvind.yadav.cs@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Arvind Yadav [Sun, 16 Jul 2017 09:32:30 +0000 (15:02 +0530)]
atm: ambassador: constify pci_device_id.
pci_device_id are not supposed to change at runtime. All functions
working with pci_device_id provided by <linux/pci.h> work with
const pci_device_id. So mark the non-const structs as const.
File size before:
text data bss dec hex filename
13372 408 4 13784 35d8 drivers/atm/ambassador.o
File size After adding 'const':
text data bss dec hex filename
13484 296 4 13784 35d8 drivers/atm/ambassador.o
Signed-off-by: Arvind Yadav <arvind.yadav.cs@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Arvind Yadav [Sun, 16 Jul 2017 09:32:29 +0000 (15:02 +0530)]
atm: iphase: constify pci_device_id.
pci_device_id are not supposed to change at runtime. All functions
working with pci_device_id provided by <linux/pci.h> work with
const pci_device_id. So mark the non-const structs as const.
File size before:
text data bss dec hex filename
23536 432 160 24128 5e40 drivers/atm/iphase.o
File size After adding 'const':
text data bss dec hex filename
23632 336 160 24128 5e40 drivers/atm/iphase.o
Signed-off-by: Arvind Yadav <arvind.yadav.cs@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Vincent Bernat [Sat, 15 Jul 2017 17:40:20 +0000 (19:40 +0200)]
ip6: fix PMTU discovery when using /127 subnets
The definition of an "anycast destination address" has been tweaked as a
side-effect of commit
2647a9b07032 ("ipv6: Remove external dependency on
rt6i_gateway and RTF_ANYCAST"). The first address of a point-to-point
/127 subnet is now considered as an anycast address. This prevents
ICMPv6 errors to be returned to a sender of such a subnet and breaks
PMTU discovery.
This can be reproduced with:
ip link add name out6 type veth peer name in6
ip link add name out7 type veth peer name in7
ip link set mtu 1400 dev out7
ip link set mtu 1400 dev in7
ip netns add next-hop
ip netns add next-next-hop
ip link set netns next-hop dev in6
ip link set netns next-hop dev out7
ip link set netns next-next-hop dev in7
ip link set up dev out6
ip addr add 2001:db8:1::12/127 dev out6
ip netns exec next-hop ip link set up dev in6
ip netns exec next-hop ip link set up dev out7
ip netns exec next-hop ip addr add 2001:db8:1::13/127 dev in6
ip netns exec next-hop ip addr add 2001:db8:1::14/127 dev out7
ip netns exec next-hop ip route add default via 2001:db8:1::15
ip netns exec next-hop sysctl -qw net.ipv6.conf.all.forwarding=1
ip netns exec next-next-hop ip link set up dev in7
ip netns exec next-next-hop ip addr add 2001:db8:1::15/127 dev in7
ip netns exec next-next-hop ip addr add 2001:db8:1::50/128 dev in7
ip netns exec next-next-hop ip route add default via 2001:db8:1::14
ip netns exec next-next-hop sysctl -qw net.ipv6.conf.all.forwarding=1
ip route add 2001:db8:1::48/123 via 2001:db8:1::13
sleep 4
ping -M do -s 1452 -c 3 2001:db8:1::50 || true
ip route get 2001:db8:1::50
Before the patch, we get:
2001:db8:1::50 from :: via 2001:db8:1::13 dev out6 src 2001:db8:1::12 metric 1024 pref medium
After the patch, we get:
2001:db8:1::50 via 2001:db8:1::13 dev out6 src 2001:db8:1::12 metric 0
cache expires 578sec mtu 1400 pref medium
Fixes:
2647a9b07032 ("ipv6: Remove external dependency on rt6i_gateway and RTF_ANYCAST")
Signed-off-by: Vincent Bernat <vincent@bernat.im>
Signed-off-by: David S. Miller <davem@davemloft.net>
sixiao@microsoft.com [Fri, 14 Jul 2017 17:47:20 +0000 (10:47 -0700)]
tools: hv: ignore a NIC if it has been configured
Let bondvf.sh ignore this NIC if it has been configured, to prevent
user configuration from being overwritten unexpectly.
Signed-off-by: Simon Xiao <sixiao@microsoft.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Shannon Nelson [Thu, 6 Jul 2017 23:57:10 +0000 (16:57 -0700)]
sunvnet: add support for IPv6 checksum offloads
The original code didn't handle non-IPv4 packets very well, so the
offload advertising had to be scaled back down to just IP. Here we
add the bits needed to support TCP and UDP packets over IPv6 and
turn the offload advertising back on.
Orabug:
26289579
Signed-off-by: Shannon Nelson <shannon.nelson@oracle.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Linus Torvalds [Thu, 13 Jul 2017 02:30:57 +0000 (19:30 -0700)]
Merge git://git./linux/kernel/git/davem/net
Pull networking fixes from David Miller:
1) Fix 64-bit division in mlx5 IPSEC offload support, from Ilan Tayari
and Arnd Bergmann.
2) Fix race in statistics gathering in bnxt_en driver, from Michael
Chan.
3) Can't use a mutex in RCU reader protected section on tap driver, from
Cong WANG.
4) Fix mdb leak in bridging code, from Eduardo Valentin.
5) Fix free of wrong pointer variable in nfp driver, from Dan Carpenter.
6) Buffer overflow in brcmfmac driver, from Arend van SPriel.
7) ioremap_nocache() return value needs to be checked in smsc911x
driver, from Alexey Khoroshilov.
* git://git.kernel.org/pub/scm/linux/kernel/git/davem/net: (34 commits)
net: stmmac: revert "support future possible different internal phy mode"
sfc: don't read beyond unicast address list
datagram: fix kernel-doc comments
socket: add documentation for missing elements
smsc911x: Add check for ioremap_nocache() return code
brcmfmac: fix possible buffer overflow in brcmf_cfg80211_mgmt_tx()
net: hns: Bugfix for Tx timeout handling in hns driver
net: ipmr: ipmr_get_table() returns NULL
nfp: freeing the wrong variable
mlxsw: spectrum_switchdev: Check status of memory allocation
mlxsw: spectrum_switchdev: Remove unused variable
mlxsw: spectrum_router: Fix use-after-free in route replace
mlxsw: spectrum_router: Add missing rollback
samples/bpf: fix a build issue
bridge: mdb: fix leak on complete_info ptr on fail path
tap: convert a mutex to a spinlock
cxgb4: fix BUG() on interrupt deallocating path of ULD
qed: Fix printk option passed when printing ipv6 addresses
net: Fix minor code bug in timestamping.txt
net: stmmac: Make 'alloc_dma_[rt]x_desc_resources()' look even closer
...
Linus Torvalds [Thu, 13 Jul 2017 02:25:47 +0000 (19:25 -0700)]
disable new gcc-7.1.1 warnings for now
I made the mistake of upgrading my desktop to the new Fedora 26 that
comes with gcc-7.1.1.
There's nothing wrong per se that I've noticed, but I now have 1500
lines of warnings, mostly from the new format-truncation warning
triggering all over the tree.
We use 'snprintf()' and friends in a lot of places, and often know that
the numbers are fairly small (ie a controller index or similar), but gcc
doesn't know that, and sees an 'int', and thinks that it could be some
huge number. And then complains when our buffers are not able to fit
the name for the ten millionth controller.
These warnings aren't necessarily bad per se, and we probably want to
look through them subsystem by subsystem, but at least during the merge
window they just mean that I can't even see if somebody is introducing
any *real* problems when I pull.
So warnings disabled for now.
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Linus Torvalds [Thu, 13 Jul 2017 00:22:01 +0000 (17:22 -0700)]
Merge tag 'modules-for-v4.13' of git://git./linux/kernel/git/jeyu/linux
Pull modules updates from Jessica Yu:
"Summary of modules changes for the 4.13 merge window:
- Minor code cleanups
- Avoid accessing mod struct prior to checking module struct version,
from Kees
- Fix racy atomic inc/dec logic of kmod_concurrent_max in kmod, from
Luis"
* tag 'modules-for-v4.13' of git://git.kernel.org/pub/scm/linux/kernel/git/jeyu/linux:
module: make the modinfo name const
kmod: reduce atomic operations on kmod_concurrent and simplify
module: use list_for_each_entry_rcu() on find_module_all()
kernel/module.c: suppress warning about unused nowarn variable
module: Add module name to modinfo
module: Pass struct load_info into symbol checks
LABBE Corentin [Wed, 12 Jul 2017 07:32:34 +0000 (09:32 +0200)]
net: stmmac: revert "support future possible different internal phy mode"
Since internal phy-mode is reserved for non-xMII protocol we cannot use
it with dwmac-sun8i.
Furthermore, all DT patchs which comes with this patch were cleaned, so
the current state is broken.
This reverts commit
1c2fa5f84683 ("net: stmmac: support future possible different internal phy mode")
Fixes:
1c2fa5f84683 ("net: stmmac: support future possible different internal phy mode")
Signed-off-by: Corentin Labbe <clabbe.montjoie@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Bert Kenward [Wed, 12 Jul 2017 16:19:41 +0000 (17:19 +0100)]
sfc: don't read beyond unicast address list
If we have more than 32 unicast MAC addresses assigned to an interface
we will read beyond the end of the address table in the driver when
adding filters. The next 256 entries store multicast addresses, so we
will end up attempting to insert duplicate filters, which is mostly
harmless. If we add more than 288 unicast addresses we will then read
past the multicast address table, which is likely to be more exciting.
Fixes:
12fb0da45c9a ("sfc: clean fallbacks between promisc/normal in efx_ef10_filter_sync_rx_mode")
Signed-off-by: Bert Kenward <bkenward@solarflare.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
David S. Miller [Wed, 12 Jul 2017 21:39:44 +0000 (14:39 -0700)]
Merge branch 'net-doc-fixes'
Stephen Hemminger says:
====================
minor net kernel-doc fixes
Fix a couple of small errors in kernel-doc for networking
====================
Signed-off-by: David S. Miller <davem@davemloft.net>
stephen hemminger [Wed, 12 Jul 2017 16:29:07 +0000 (09:29 -0700)]
datagram: fix kernel-doc comments
An underscore in the kernel-doc comment section has special meaning
and mis-use generates an errors.
./net/core/datagram.c:207: ERROR: Unknown target name: "msg".
./net/core/datagram.c:379: ERROR: Unknown target name: "msg".
./net/core/datagram.c:816: ERROR: Unknown target name: "t".
Signed-off-by: Stephen Hemminger <sthemmin@microsoft.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
stephen hemminger [Wed, 12 Jul 2017 16:29:06 +0000 (09:29 -0700)]
socket: add documentation for missing elements
Fill in missing kernel-doc for missing elements in struct sock.
Signed-off-by: Stephen Hemminger <sthemmin@microsoft.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Alexey Khoroshilov [Wed, 12 Jul 2017 20:58:56 +0000 (23:58 +0300)]
smsc911x: Add check for ioremap_nocache() return code
There is no check for return code of smsc911x_drv_probe()
in smsc911x_drv_probe(). The patch adds one.
Found by Linux Driver Verification project (linuxtesting.org).
Signed-off-by: Alexey Khoroshilov <khoroshilov@ispras.ru>
Signed-off-by: David S. Miller <davem@davemloft.net>
Linus Torvalds [Wed, 12 Jul 2017 17:04:56 +0000 (10:04 -0700)]
Merge branch 'i2c/for-4.13' of git://git./linux/kernel/git/wsa/linux
Pull i2c updates from Wolfram Sang:
"This pull request contains:
- i2c core reorganization. One source file became too monolithic. It
is now split up, yet we still have the same named object as the
final output. This should ease maintenance.
- new drivers: ZTE ZX2967 family, ASPEED 24XX/25XX
- designware driver gained slave mode support
- xgene-slimpro driver gained ACPI support
- bigger overhaul for pca-platform driver
- the algo-bit module now supports messages with enforced STOP
- slightly bigger than usual set of driver updates and improvements
and with much appreciated quality assurance from Andy Shevchenko"
* 'i2c/for-4.13' of git://git.kernel.org/pub/scm/linux/kernel/git/wsa/linux: (51 commits)
i2c: Provide a stub for i2c_detect_slave_mode()
i2c: designware: Let slave adapter support be optional
i2c: designware: Make HW init functions static
i2c: designware: fix spelling mistakes
i2c: pca-platform: propagate error from i2c_pca_add_numbered_bus
i2c: pca-platform: correctly set algo_data.reset_chip
i2c: acpi: Do not create i2c-clients for LNXVIDEO ACPI devices
i2c: designware: enable SLAVE in platform module
i2c: designware: add SLAVE mode functions
i2c: zx2967: drop COMPILE_TEST dependency
i2c: zx2967: always use the same device when printing errors
i2c: pca-platform: use dev_warn/dev_info instead of printk
i2c: pca-platform: use device managed allocations
i2c: pca-platform: add devicetree awareness
i2c: pca-platform: switch to struct gpio_desc
dt-bindings: add bindings for i2c-pca-platform
i2c: cadance: fix ctrl/addr reg write order
i2c: zx2967: add i2c controller driver for ZTE's zx2967 family
dt: bindings: add documentation for zx2967 family i2c controller
i2c: algo-bit: add support for I2C_M_STOP
...
Linus Torvalds [Wed, 12 Jul 2017 17:00:04 +0000 (10:00 -0700)]
Merge tag 'iommu-updates-v4.13' of git://git./linux/kernel/git/joro/iommu
Pull IOMMU updates from Joerg Roedel:
"This update comes with:
- Support for lockless operation in the ARM io-pgtable code.
This is an important step to solve the scalability problems in the
common dma-iommu code for ARM
- Some Errata workarounds for ARM SMMU implemenations
- Rewrite of the deferred IO/TLB flush code in the AMD IOMMU driver.
The code suffered from very high flush rates, with the new
implementation the flush rate is down to ~1% of what it was before
- Support for amd_iommu=off when booting with kexec.
The problem here was that the IOMMU driver bailed out early without
disabling the iommu hardware, if it was enabled in the old kernel
- The Rockchip IOMMU driver is now available on ARM64
- Align the return value of the iommu_ops->device_group call-backs to
not miss error values
- Preempt-disable optimizations in the Intel VT-d and common IOVA
code to help Linux-RT
- Various other small cleanups and fixes"
* tag 'iommu-updates-v4.13' of git://git.kernel.org/pub/scm/linux/kernel/git/joro/iommu: (60 commits)
iommu/vt-d: Constify intel_dma_ops
iommu: Warn once when device_group callback returns NULL
iommu/omap: Return ERR_PTR in device_group call-back
iommu: Return ERR_PTR() values from device_group call-backs
iommu/s390: Use iommu_group_get_for_dev() in s390_iommu_add_device()
iommu/vt-d: Don't disable preemption while accessing deferred_flush()
iommu/iova: Don't disable preempt around this_cpu_ptr()
iommu/arm-smmu-v3: Add workaround for Cavium ThunderX2 erratum #126
iommu/arm-smmu-v3: Enable ACPI based HiSilicon CMD_PREFETCH quirk(erratum
161010701)
iommu/arm-smmu-v3: Add workaround for Cavium ThunderX2 erratum #74
ACPI/IORT: Fixup SMMUv3 resource size for Cavium ThunderX2 SMMUv3 model
iommu/arm-smmu-v3, acpi: Add temporary Cavium SMMU-V3 IORT model number definitions
iommu/io-pgtable-arm: Use dma_wmb() instead of wmb() when publishing table
iommu/io-pgtable: depend on !GENERIC_ATOMIC64 when using COMPILE_TEST with LPAE
iommu/arm-smmu-v3: Remove io-pgtable spinlock
iommu/arm-smmu: Remove io-pgtable spinlock
iommu/io-pgtable-arm-v7s: Support lockless operation
iommu/io-pgtable-arm: Support lockless operation
iommu/io-pgtable: Introduce explicit coherency
iommu/io-pgtable-arm-v7s: Refactor split_blk_unmap
...
Linus Torvalds [Wed, 12 Jul 2017 16:28:55 +0000 (09:28 -0700)]
Merge branch 'overlayfs-linus' of git://git./linux/kernel/git/mszeredi/vfs
Pull overlayfs updates from Miklos Szeredi:
"This work from Amir introduces the inodes index feature, which
provides:
- hardlinks are not broken on copy up
- infrastructure for overlayfs NFS export
This also fixes constant st_ino for samefs case for lower hardlinks"
* 'overlayfs-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mszeredi/vfs: (33 commits)
ovl: mark parent impure and restore timestamp on ovl_link_up()
ovl: document copying layers restrictions with inodes index
ovl: cleanup orphan index entries
ovl: persistent overlay inode nlink for indexed inodes
ovl: implement index dir copy up
ovl: move copy up lock out
ovl: rearrange copy up
ovl: add flag for upper in ovl_entry
ovl: use struct copy_up_ctx as function argument
ovl: base tmpfile in workdir too
ovl: factor out ovl_copy_up_inode() helper
ovl: extract helper to get temp file in copy up
ovl: defer upper dir lock to tempfile link
ovl: hash overlay non-dir inodes by copy up origin
ovl: cleanup bad and stale index entries on mount
ovl: lookup index entry for copy up origin
ovl: verify index dir matches upper dir
ovl: verify upper root dir matches lower root dir
ovl: introduce the inodes index dir feature
ovl: generalize ovl_create_workdir()
...
Al Viro [Wed, 12 Jul 2017 03:59:45 +0000 (04:59 +0100)]
fix a braino in compat_sys_getrlimit()
Reported-and-tested-by: Meelis Roos <mroos@linux.ee>
Fixes: commit
d9e968cb9f84 "getrlimit()/setrlimit(): move compat to native"
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Acked-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Arend van Spriel [Fri, 7 Jul 2017 20:09:06 +0000 (21:09 +0100)]
brcmfmac: fix possible buffer overflow in brcmf_cfg80211_mgmt_tx()
The lower level nl80211 code in cfg80211 ensures that "len" is between
25 and NL80211_ATTR_FRAME (2304). We subtract DOT11_MGMT_HDR_LEN (24) from
"len" so thats's max of 2280. However, the action_frame->data[] buffer is
only BRCMF_FIL_ACTION_FRAME_SIZE (1800) bytes long so this memcpy() can
overflow.
memcpy(action_frame->data, &buf[DOT11_MGMT_HDR_LEN],
le16_to_cpu(action_frame->len));
Cc: stable@vger.kernel.org # 3.9.x
Fixes:
18e2f61db3b70 ("brcmfmac: P2P action frame tx.")
Reported-by: "freenerguo(éƒå¤§å…´)" <freenerguo@tencent.com>
Signed-off-by: Arend van Spriel <arend.vanspriel@broadcom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Lin Yun Sheng [Wed, 12 Jul 2017 11:09:59 +0000 (19:09 +0800)]
net: hns: Bugfix for Tx timeout handling in hns driver
When hns port type is not debug mode, netif_tx_disable is called
when there is a tx timeout, which requires system reboot to return
to normal state. This patch fix this problem by resetting the net
dev.
Fixes:
b5996f11ea54 ("net: add Hisilicon Network Subsystem basic ethernet support")
Signed-off-by: Lin Yun Sheng <linyunsheng@huawei.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Dan Carpenter [Wed, 12 Jul 2017 07:56:47 +0000 (10:56 +0300)]
net: ipmr: ipmr_get_table() returns NULL
The ipmr_get_table() function doesn't return error pointers it returns
NULL on error.
Fixes:
4f75ba6982bc ("net: ipmr: Add ipmr_rtm_getroute")
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Acked-by: Nikolay Aleksandrov <nikolay@cumulusnetworks.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Dan Carpenter [Wed, 12 Jul 2017 07:42:06 +0000 (10:42 +0300)]
nfp: freeing the wrong variable
We accidentally free a NULL pointer and leak the pointer we want to
free. Also you can tell from the label name what was intended. :)
Fixes:
abfcdc1de9bf ("nfp: add a stats handler for flower offloads")
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Acked-by: Jakub Kicinski <jakub.kicinski@netronome.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
David S. Miller [Wed, 12 Jul 2017 15:15:52 +0000 (08:15 -0700)]
Merge branch 'mlxsw-spectrum-Various-fixes'
Jiri Pirko says:
====================
mlxsw: spectrum: Various fixes
First patch adds a missing rollback in error path. Second patch prevents
a use-after-free during IPv4 route replace. Last two patches fix warnings
from static checkers.
====================
Signed-off-by: David S. Miller <davem@davemloft.net>
Ido Schimmel [Wed, 12 Jul 2017 07:12:55 +0000 (09:12 +0200)]
mlxsw: spectrum_switchdev: Check status of memory allocation
We can't rely on kzalloc() always succeeding, so check its return value.
Suppresses the following smatch error:
mlxsw_sp_switchdev_event() error: potential null dereference
'switchdev_work->fdb_info.addr'. (kzalloc returns
null)
Fixes:
af061378924f ("mlxsw: spectrum_switchdev: Add support for learning FDB through notification")
Signed-off-by: Ido Schimmel <idosch@mellanox.com>
Signed-off-by: Jiri Pirko <jiri@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Ido Schimmel [Wed, 12 Jul 2017 07:12:54 +0000 (09:12 +0200)]
mlxsw: spectrum_switchdev: Remove unused variable
Commit
10e23eb299fa ("mlxsw: spectrum: Remove support for bypass bridge
port attributes/vlan set") removed statements that used 'bridge_vlan',
but didn't remove the variable itself resulting in the following warning
with W=1:
warning: variable ‘bridge_vlan’ set but not used
[-Wunused-but-set-variable]
Remove the variable and suppress the warning.
Fixes:
10e23eb299fa ("mlxsw: spectrum: Remove support for bypass bridge port attributes/vlan set")
Signed-off-by: Ido Schimmel <idosch@mellanox.com>
Signed-off-by: Jiri Pirko <jiri@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Ido Schimmel [Wed, 12 Jul 2017 07:12:53 +0000 (09:12 +0200)]
mlxsw: spectrum_router: Fix use-after-free in route replace
While working on IPv6 route replace I realized we can have a
use-after-free in IPv4 in case the replaced route is offloaded and the
only one using its FIB info.
The problem is that fib_table_insert() drops the reference on the FIB
info of the replaced routes which is eventually freed via call_rcu().
Since the driver doesn't hold a reference on this FIB info it can cause
a use-after-free when it tries to clear the RTNH_F_OFFLOAD flag stored
in fi->fib_flags.
After running the following commands in a loop for enough time with a
KASAN enabled kernel I finally got the below trace.
$ ip route add 192.168.50.0/24 via 192.168.200.1 dev enp3s0np3
$ ip route replace 192.168.50.0/24 dev enp3s0np5
$ ip route del 192.168.50.0/24 dev enp3s0np5
BUG: KASAN: use-after-free in mlxsw_sp_fib_entry_offload_unset+0xa7/0x120 [mlxsw_spectrum]
Read of size 4 at addr
ffff8803717d9820 by task kworker/u4:2/55
[...]
? mlxsw_sp_fib_entry_offload_unset+0xa7/0x120 [mlxsw_spectrum]
? mlxsw_sp_fib_entry_offload_unset+0xa7/0x120 [mlxsw_spectrum]
? mlxsw_sp_router_neighs_update_work+0x1cd0/0x1ce0 [mlxsw_spectrum]
? mlxsw_sp_fib_entry_offload_unset+0xa7/0x120 [mlxsw_spectrum]
__asan_load4+0x61/0x80
mlxsw_sp_fib_entry_offload_unset+0xa7/0x120 [mlxsw_spectrum]
mlxsw_sp_fib_entry_offload_refresh+0xb6/0x370 [mlxsw_spectrum]
mlxsw_sp_router_fib_event_work+0xd1c/0x2780 [mlxsw_spectrum]
[...]
Freed by task 5131:
save_stack_trace+0x16/0x20
save_stack+0x46/0xd0
kasan_slab_free+0x70/0xc0
kfree+0x144/0x570
free_fib_info_rcu+0x2e7/0x410
rcu_process_callbacks+0x4f8/0xe30
__do_softirq+0x1d3/0x9e2
Fix this by taking a reference on the FIB info when creating the nexthop
group it represents and drop it when the group is destroyed.
Fixes:
599cf8f95f22 ("mlxsw: spectrum_router: Add support for route replace")
Signed-off-by: Ido Schimmel <idosch@mellanox.com>
Signed-off-by: Jiri Pirko <jiri@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Ido Schimmel [Wed, 12 Jul 2017 07:12:52 +0000 (09:12 +0200)]
mlxsw: spectrum_router: Add missing rollback
With this patch the error path of mlxsw_sp_nexthop_init() is symmetric
with mlxsw_sp_nexthop_fini(). Noticed during code review.
Fixes:
a8c970142798 ("mlxsw: spectrum_router: Refactor nexthop init routine")
Signed-off-by: Ido Schimmel <idosch@mellanox.com>
Signed-off-by: Jiri Pirko <jiri@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Linus Torvalds [Wed, 12 Jul 2017 04:34:24 +0000 (21:34 -0700)]
Merge git://git./linux/kernel/git/davem/sparc
Pull sparc fixes from David Miller:
- Fix symbol version generation for assembler on sparc, from
Nagarathnam Muthusamy.
- Fix compound page handling in gup_huge_pmd(), from Nitin Gupta.
* git://git.kernel.org/pub/scm/linux/kernel/git/davem/sparc:
sparc64: Fix gup_huge_pmd
Adding the type of exported symbols
sed regex in Makefile.build requires line break between exported symbols
Adding asm-prototypes.h for genksyms to generate crc
Yonghong Song [Mon, 10 Jul 2017 21:04:28 +0000 (14:04 -0700)]
samples/bpf: fix a build issue
With latest net-next:
====
clang -nostdinc -isystem /usr/lib/gcc/x86_64-redhat-linux/6.3.1/include -I./arch/x86/include -I./arch/x86/include/generated/uapi -I./arch/x86/include/generated -I./include -I./arch/x86/include/uapi -I./include/uapi -I./include/generated/uapi -include ./include/linux/kconfig.h -Isamples/bpf \
-D__KERNEL__ -D__ASM_SYSREG_H -Wno-unused-value -Wno-pointer-sign \
-Wno-compare-distinct-pointer-types \
-Wno-gnu-variable-sized-type-not-at-end \
-Wno-address-of-packed-member -Wno-tautological-compare \
-Wno-unknown-warning-option \
-O2 -emit-llvm -c samples/bpf/tcp_synrto_kern.c -o -| llc -march=bpf -filetype=obj -o samples/bpf/tcp_synrto_kern.o
samples/bpf/tcp_synrto_kern.c:20:10: fatal error: 'bpf_endian.h' file not found
^~~~~~~~~~~~~~
1 error generated.
====
net has the same issue.
Add support for ntohl and htonl in tools/testing/selftests/bpf/bpf_endian.h.
Also move bpf_helpers.h from samples/bpf to selftests/bpf and change
compiler include logic so that programs in samples/bpf can access the headers
in selftests/bpf, but not the other way around.
Signed-off-by: Yonghong Song <yhs@fb.com>
Acked-by: Daniel Borkmann <daniel@iogearbox.net>
Acked-by: Lawrence Brakmo <brakmo@fb.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Eduardo Valentin [Tue, 11 Jul 2017 21:55:12 +0000 (14:55 -0700)]
bridge: mdb: fix leak on complete_info ptr on fail path
We currently get the following kmemleak report:
unreferenced object 0xffff8800039d9820 (size 32):
comm "softirq", pid 0, jiffies
4295212383 (age 792.416s)
hex dump (first 32 bytes):
00 0c e0 03 00 88 ff ff ff 02 00 00 00 00 00 00 ................
00 00 00 01 ff 11 00 02 86 dd 00 00 ff ff ff ff ................
backtrace:
[<
ffffffff8152b4aa>] kmemleak_alloc+0x4a/0xa0
[<
ffffffff811d8ec8>] kmem_cache_alloc_trace+0xb8/0x1c0
[<
ffffffffa0389683>] __br_mdb_notify+0x2a3/0x300 [bridge]
[<
ffffffffa038a0ce>] br_mdb_notify+0x6e/0x70 [bridge]
[<
ffffffffa0386479>] br_multicast_add_group+0x109/0x150 [bridge]
[<
ffffffffa0386518>] br_ip6_multicast_add_group+0x58/0x60 [bridge]
[<
ffffffffa0387fb5>] br_multicast_rcv+0x1d5/0xdb0 [bridge]
[<
ffffffffa037d7cf>] br_handle_frame_finish+0xcf/0x510 [bridge]
[<
ffffffffa03a236b>] br_nf_hook_thresh.part.27+0xb/0x10 [br_netfilter]
[<
ffffffffa03a3738>] br_nf_hook_thresh+0x48/0xb0 [br_netfilter]
[<
ffffffffa03a3fb9>] br_nf_pre_routing_finish_ipv6+0x109/0x1d0 [br_netfilter]
[<
ffffffffa03a4400>] br_nf_pre_routing_ipv6+0xd0/0x14c [br_netfilter]
[<
ffffffffa03a3c27>] br_nf_pre_routing+0x197/0x3d0 [br_netfilter]
[<
ffffffff814a2952>] nf_iterate+0x52/0x60
[<
ffffffff814a29bc>] nf_hook_slow+0x5c/0xb0
[<
ffffffffa037ddf4>] br_handle_frame+0x1a4/0x2c0 [bridge]
This happens when switchdev_port_obj_add() fails. This patch
frees complete_info object in the fail path.
Reviewed-by: Vallish Vaidyeshwara <vallish@amazon.com>
Signed-off-by: Eduardo Valentin <eduval@amazon.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Linus Torvalds [Tue, 11 Jul 2017 22:36:52 +0000 (15:36 -0700)]
Merge branch 'for-linus' of git://git.kernel.dk/linux-block
Pull more block updates from Jens Axboe:
"This is a followup for block changes, that didn't make the initial
pull request. It's a bit of a mixed bag, this contains:
- A followup pull request from Sagi for NVMe. Outside of fixups for
NVMe, it also includes a series for ensuring that we properly
quiesce hardware queues when browsing live tags.
- Set of integrity fixes from Dmitry (mostly), fixing various issues
for folks using DIF/DIX.
- Fix for a bug introduced in cciss, with the req init changes. From
Christoph.
- Fix for a bug in BFQ, from Paolo.
- Two followup fixes for lightnvm/pblk from Javier.
- Depth fix from Ming for blk-mq-sched.
- Also from Ming, performance fix for mtip32xx that was introduced
with the dynamic initialization of commands"
* 'for-linus' of git://git.kernel.dk/linux-block: (44 commits)
block: call bio_uninit in bio_endio
nvmet: avoid unneeded assignment of submit_bio return value
nvme-pci: add module parameter for io queue depth
nvme-pci: compile warnings in nvme_alloc_host_mem()
nvmet_fc: Accept variable pad lengths on Create Association LS
nvme_fc/nvmet_fc: revise Create Association descriptor length
lightnvm: pblk: remove unnecessary checks
lightnvm: pblk: control I/O flow also on tear down
cciss: initialize struct scsi_req
null_blk: fix error flow for shared tags during module_init
block: Fix __blkdev_issue_zeroout loop
nvme-rdma: unconditionally recycle the request mr
nvme: split nvme_uninit_ctrl into stop and uninit
virtio_blk: quiesce/unquiesce live IO when entering PM states
mtip32xx: quiesce request queues to make sure no submissions are inflight
nbd: quiesce request queues to make sure no submissions are inflight
nvme: kick requeue list when requeueing a request instead of when starting the queues
nvme-pci: quiesce/unquiesce admin_q instead of start/stop its hw queues
nvme-loop: quiesce/unquiesce admin_q instead of start/stop its hw queues
nvme-fc: quiesce/unquiesce admin_q instead of start/stop its hw queues
...
Linus Torvalds [Tue, 11 Jul 2017 21:04:48 +0000 (14:04 -0700)]
Merge tag 'smb3-security-fixes-for-4.13' of git://git.samba.org/sfrench/cifs-2.6
Pull cifs fixes and sane default from Steve French:
"Upgrade default dialect to more secure SMB3 from older cifs dialect"
* tag 'smb3-security-fixes-for-4.13' of git://git.samba.org/sfrench/cifs-2.6:
cifs: Clean up unused variables in smb2pdu.c
[SMB3] Improve security, move default dialect to SMB3 from old CIFS
[SMB3] Remove ifdef since SMB3 (and later) now STRONGLY preferred
CIFS: Reconnect expired SMB sessions
CIFS: Display SMB2 error codes in the hex format
cifs: Use smb 2 - 3 and cifsacl mount options setacl function
cifs: prototype declaration and definition to set acl for smb 2 - 3 and cifsacl mount options
WANG Cong [Mon, 10 Jul 2017 17:05:50 +0000 (10:05 -0700)]
tap: convert a mutex to a spinlock
We are not allowed to block on the RCU reader side, so can't
just hold the mutex as before. As a quick fix, convert it to
a spinlock.
Fixes:
d9f1f61c0801 ("tap: Extending tap device create/destroy APIs")
Reported-by: Christian Borntraeger <borntraeger@de.ibm.com>
Tested-by: Christian Borntraeger <borntraeger@de.ibm.com>
Cc: Sainath Grandhi <sainath.grandhi@intel.com>
Signed-off-by: Cong Wang <xiyou.wangcong@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Guilherme G. Piccoli [Mon, 10 Jul 2017 13:55:46 +0000 (10:55 -0300)]
cxgb4: fix BUG() on interrupt deallocating path of ULD
Since the introduction of ULD (Upper-Layer Drivers), the MSI-X
deallocating path changed in cxgb4: the driver frees the interrupts
of ULD when unregistering it or on shutdown PCI handler.
Problem is that if a MSI-X is not freed before deallocated in the PCI
layer, it will trigger a BUG() due to still "alive" interrupt being
tentatively quiesced.
The below trace was observed when doing a simple unbind of Chelsio's
adapter PCI function, like:
"echo 001e:80:00.4 > /sys/bus/pci/drivers/cxgb4/unbind"
Trace:
kernel BUG at drivers/pci/msi.c:352!
Oops: Exception in kernel mode, sig: 5 [#1]
...
NIP [
c0000000005a5e60] free_msi_irqs+0xa0/0x250
LR [
c0000000005a5e50] free_msi_irqs+0x90/0x250
Call Trace:
[
c0000000005a5e50] free_msi_irqs+0x90/0x250 (unreliable)
[
c0000000005a72c4] pci_disable_msix+0x124/0x180
[
d000000011e06708] disable_msi+0x88/0xb0 [cxgb4]
[
d000000011e06948] free_some_resources+0xa8/0x160 [cxgb4]
[
d000000011e06d60] remove_one+0x170/0x3c0 [cxgb4]
[
c00000000058a910] pci_device_remove+0x70/0x110
[
c00000000064ef04] device_release_driver_internal+0x1f4/0x2c0
...
This patch fixes the issue by refactoring the shutdown path of ULD on
cxgb4 driver, by properly freeing and disabling interrupts on PCI
remove handler too.
Fixes:
0fbc81b3ad51 ("Allocate resources dynamically for all cxgb4 ULD's")
Reported-by: Harsha Thyagaraja <hathyaga@in.ibm.com>
Signed-off-by: Guilherme G. Piccoli <gpiccoli@linux.vnet.ibm.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Kalderon, Michal [Sun, 9 Jul 2017 10:00:16 +0000 (13:00 +0300)]
qed: Fix printk option passed when printing ipv6 addresses
The option "h" (host order ) exists for ipv4 only.
Remove the h when printing ipv6 addresses.
Lead to the following smatch warning:
drivers/net/ethernet/qlogic/qed/qed_iwarp.c:585 qed_iwarp_print_tcp_ramrod()
warn: '%pI6' can only be followed by c
drivers/net/ethernet/qlogic/qed/qed_iwarp.c:1521 qed_iwarp_print_cm_info()
warn: '%pI6' can only be followed by c
Fixes commit
456a584947d5 ("qed: iWARP CM add passive side connect")
Reported-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Michal Kalderon <Michal.Kalderon@cavium.com>
Signed-off-by: Yuval Mintz <Yuval.Mintz@cavium.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Ahmad Fatoum [Sat, 8 Jul 2017 19:28:44 +0000 (21:28 +0200)]
net: Fix minor code bug in timestamping.txt
Passing (void*)val instead of &val would make a pointer out of an integer
and cause sock_setsockopt to -EFAULT.
See tools/testing/selftests/networking/timestamping/timestamping.c
for a working example.
Cc: David S. Miller <davem@davemloft.net>
Cc: netdev@vger.kernel.org
Signed-off-by: Ahmad Fatoum <ahmad@a3f.at>
Signed-off-by: David S. Miller <davem@davemloft.net>
David S. Miller [Tue, 11 Jul 2017 20:33:54 +0000 (13:33 -0700)]
Merge branch 'stmmac-dma-resources-fixes'
Christophe JAILLET says:
====================
net: stmmac: Fixes and cleanups in 'alloc_dma_[rt]x_desc_resources()'
These patchs are all related to 'alloc_dma_[rt]x_desc_resources()' functions.
The 2 first fix an error path where some resources are leaking. I've
separated them into 2 patches because the issues have been introduced by
2 deferent commits.
The 3rd patch is just a clean-up.
====================
Signed-off-by: David S. Miller <davem@davemloft.net>
Christophe Jaillet [Sat, 8 Jul 2017 07:46:54 +0000 (09:46 +0200)]
net: stmmac: Make 'alloc_dma_[rt]x_desc_resources()' look even closer
'alloc_dma_[rt]x_desc_resources()' functions look very close.
Remove a useless initialization and use the same label name for error
handling path in order to get them even closer.
Signed-off-by: Christophe JAILLET <christophe.jaillet@wanadoo.fr>
Acked-by: Giuseppe Cavallaro <peppe.cavallaro@st.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Christophe Jaillet [Sat, 8 Jul 2017 07:46:43 +0000 (09:46 +0200)]
net: stmmac: Fix error handling path in 'alloc_dma_tx_desc_resources()'
If the first 'kmalloc_array' within the loop fails, we should free what
as already been allocated, as done in all other error handling path.
Fixes:
ce736788e8a9 ("net: stmmac: adding multiple buffers for TX")
Signed-off-by: Christophe JAILLET <christophe.jaillet@wanadoo.fr>
Acked-by: Giuseppe Cavallaro <peppe.cavallaro@st.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Christophe Jaillet [Sat, 8 Jul 2017 07:46:33 +0000 (09:46 +0200)]
net: stmmac: Fix error handling path in 'alloc_dma_rx_desc_resources()'
If the first 'kmalloc_array' within the loop fails, we should free what
as already been allocated, as done in all other error handling path.
Fixes:
54139cf3bb33 ("net: stmmac: adding multiple buffers for rx")
Signed-off-by: Christophe JAILLET <christophe.jaillet@wanadoo.fr>
Acked-by: Giuseppe Cavallaro <peppe.cavallaro@st.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Linus Torvalds [Tue, 11 Jul 2017 19:12:28 +0000 (12:12 -0700)]
Merge tag 'ceph-for-4.13-rc1' of git://github.com/ceph/ceph-client
Pull ceph updates from Ilya Dryomov:
"The main item here is support for v12.y.z ("Luminous") clusters:
RESEND_ON_SPLIT, RADOS_BACKOFF, OSDMAP_PG_UPMAP and CRUSH_CHOOSE_ARGS
feature bits, and various other changes in the RADOS client protocol.
On top of that we have a new fsc mount option to allow supplying
fscache uniquifier (similar to NFS) and the usual pile of filesystem
fixes from Zheng"
* tag 'ceph-for-4.13-rc1' of git://github.com/ceph/ceph-client: (44 commits)
libceph: advertise support for NEW_OSDOP_ENCODING and SERVER_LUMINOUS
libceph: osd_state is 32 bits wide in luminous
crush: remove an obsolete comment
crush: crush_init_workspace starts with struct crush_work
libceph, crush: per-pool crush_choose_arg_map for crush_do_rule()
crush: implement weight and id overrides for straw2
libceph: apply_upmap()
libceph: compute actual pgid in ceph_pg_to_up_acting_osds()
libceph: pg_upmap[_items] infrastructure
libceph: ceph_decode_skip_* helpers
libceph: kill __{insert,lookup,remove}_pg_mapping()
libceph: introduce and switch to decode_pg_mapping()
libceph: don't pass pgid by value
libceph: respect RADOS_BACKOFF backoffs
libceph: make DEFINE_RB_* helpers more general
libceph: avoid unnecessary pi lookups in calc_target()
libceph: use target pi for calc_target() calculations
libceph: always populate t->target_{oid,oloc} in calc_target()
libceph: make sure need_resend targets reflect latest map
libceph: delete from need_resend_linger before check_linger_pool_dne()
...
Christophe Jaillet [Sat, 8 Jul 2017 04:51:35 +0000 (06:51 +0200)]
cisco: enic: Fic an error handling path in 'vnic_dev_init_devcmd2()'
if 'ioread32()' returns 0xFFFFFFF, we have to go through the error
handling path as done everywhere else in this function.
Move the 'err_free_wq' label to better match its name and its location
and add a new label 'err_disable_wq'.
Update the code accordingly.
Fixes:
373fb0873d43 ("enic: add devcmd2")
Signed-off-by: Christophe JAILLET <christophe.jaillet@wanadoo.fr>
Signed-off-by: David S. Miller <davem@davemloft.net>
David S. Miller [Tue, 11 Jul 2017 17:32:12 +0000 (10:32 -0700)]
Merge branch 'bnxt_en-Bug-fixes'
Michael Chan says:
====================
bnxt_en: Bug fixes.
3 bug fixes in this series. Fix a crash in bnxt_get_stats64() that can
happen if the device is closing and freeing the statistics block at the
same time. The 2nd one fixes ethtool -L failing when changing from
combined to non-combined mode or vice versa. The last one fixes SRIOV
failure on big-endian systems because we were setting a bitmap wrong in
a firmware message.
====================
Signed-off-by: David S. Miller <davem@davemloft.net>
Michael Chan [Tue, 11 Jul 2017 17:05:36 +0000 (13:05 -0400)]
bnxt_en: Fix SRIOV on big-endian architecture.
The PF driver sets up a list of firmware commands from the VF driver that
needs to be forwarded to the PF for approval. This list is a 256-bit
bitmap. The code that sets up the bitmap falls apart on big-endian
architecture. __set_bit() does not work because it operates on long types
whereas the firmware interface is defined in u32 types, causing bits in
the wrong 32-bit word to be set.
Fix it by setting the proper bits on an array of u32.
Fixes:
de68f5de5651 ("bnxt_en: Fix bitmap declaration to work on 32-bit arches.")
Reported-by: Shannon Nelson <shannon.nelson@oracle.com>
Signed-off-by: Michael Chan <michael.chan@broadcom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Michael Chan [Tue, 11 Jul 2017 17:05:35 +0000 (13:05 -0400)]
bnxt_en: Fix bug in ethtool -L.
When changing channels from combined to rx/tx or vice versa, the code
uses the wrong "sh" parameter to determine if we are reserving rings
for shared or non-shared mode. It should be using the ethtool requested
"sh" parameter instead of the current "sh" parameter.
Fix it by passing the "sh" parameter to bnxt_reserve_rings(). For
ethtool, we will pass in the requested "sh" parameter.
Fixes:
391be5c27364 ("bnxt_en: Implement new scheme to reserve tx rings.")
Signed-off-by: Michael Chan <michael.chan@broadcom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Michael Chan [Tue, 11 Jul 2017 17:05:34 +0000 (13:05 -0400)]
bnxt_en: Fix race conditions in .ndo_get_stats64().
.ndo_get_stats64() may not be protected by RTNL and can race with
.ndo_stop() or other ethtool operations that can free the statistics
memory. Fix it by setting a new flag BNXT_STATE_READ_STATS and then
proceeding to read statistics memory only if the state is OPEN. The
close path that frees the memory clears the OPEN state and then waits
for the BNXT_STATE_READ_STATS to clear before proceeding to free the
statistics memory.
Fixes:
c0c050c58d84 ("bnxt_en: New Broadcom ethernet driver.")
Signed-off-by: Michael Chan <michael.chan@broadcom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>