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Eric Garver [Tue, 23 May 2017 22:37:27 +0000 (18:37 -0400)]
geneve: fix fill_info when using collect_metadata
Since
9b4437a5b870 ("geneve: Unify LWT and netdev handling.") fill_info
does not return UDP_ZERO_CSUM6_RX when using COLLECT_METADATA. This is
because it uses ip_tunnel_info_af() with the device level info, which is
not valid for COLLECT_METADATA.
Fix by checking for the presence of the actual sockets.
Fixes:
9b4437a5b870 ("geneve: Unify LWT and netdev handling.")
Signed-off-by: Eric Garver <e@erig.me>
Acked-by: Pravin B Shelar <pshelar@ovn.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
David S. Miller [Wed, 24 May 2017 20:27:22 +0000 (16:27 -0400)]
Merge branch 'q-in-q-checksums'
Daniel Borkmann says:
====================
BPF pruning follow-up
Follow-up to fix incorrect pruning when alignment tracking is
in use and to properly clear regs after call to not leave stale
data behind. For details, please see individual patches.
====================
Signed-off-by: David S. Miller <davem@davemloft.net>
Vlad Yasevich [Tue, 23 May 2017 17:38:43 +0000 (13:38 -0400)]
virtio-net: enable TSO/checksum offloads for Q-in-Q vlans
Since virtio does not provide it's own ndo_features_check handler,
TSO, and now checksum offload, are disabled for stacked vlans.
Re-enable the support and let the host take care of it. This
restores/improves Guest-to-Guest performance over Q-in-Q vlans.
Acked-by: Jason Wang <jasowang@redhat.com>
Acked-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Vladislav Yasevich <vyasevic@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Vlad Yasevich [Tue, 23 May 2017 17:38:42 +0000 (13:38 -0400)]
be2net: Fix offload features for Q-in-Q packets
At least some of the be2net cards do not seem to be capabled
of performing checksum offload computions on Q-in-Q packets.
In these case, the recevied checksum on the remote is invalid
and TCP syn packets are dropped.
This patch adds a call to check disbled acceleration features
on Q-in-Q tagged traffic.
CC: Sathya Perla <sathya.perla@broadcom.com>
CC: Ajit Khaparde <ajit.khaparde@broadcom.com>
CC: Sriharsha Basavapatna <sriharsha.basavapatna@broadcom.com>
CC: Somnath Kotur <somnath.kotur@broadcom.com>
Signed-off-by: Vladislav Yasevich <vyasevic@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Vlad Yasevich [Tue, 23 May 2017 17:38:41 +0000 (13:38 -0400)]
vlan: Fix tcp checksum offloads in Q-in-Q vlans
It appears that TCP checksum offloading has been broken for
Q-in-Q vlans. The behavior was execerbated by the
series
commit
afb0bc972b52 ("Merge branch 'stacked_vlan_tso'")
that that enabled accleleration features on stacked vlans.
However, event without that series, it is possible to trigger
this issue. It just requires a lot more specialized configuration.
The root cause is the interaction between how
netdev_intersect_features() works, the features actually set on
the vlan devices and HW having the ability to run checksum with
longer headers.
The issue starts when netdev_interesect_features() replaces
NETIF_F_HW_CSUM with a combination of NETIF_F_IP_CSUM | NETIF_F_IPV6_CSUM,
if the HW advertises IP|IPV6 specific checksums. This happens
for tagged and multi-tagged packets. However, HW that enables
IP|IPV6 checksum offloading doesn't gurantee that packets with
arbitrarily long headers can be checksummed.
This patch disables IP|IPV6 checksums on the packet for multi-tagged
packets.
CC: Toshiaki Makita <makita.toshiaki@lab.ntt.co.jp>
CC: Michal Kubecek <mkubecek@suse.cz>
Signed-off-by: Vladislav Yasevich <vyasevic@redhat.com>
Acked-by: Toshiaki Makita <makita.toshiaki@lab.ntt.co.jp>
Signed-off-by: David S. Miller <davem@davemloft.net>
Andrew Lunn [Tue, 23 May 2017 15:49:13 +0000 (17:49 +0200)]
net: phy: marvell: Limit errata to 88m1101
The 88m1101 has an errata when configuring autoneg. However, it was
being applied to many other Marvell PHYs as well. Limit its scope to
just the 88m1101.
Fixes:
76884679c644 ("phylib: Add support for Marvell 88e1111S and
88e1145")
Reported-by: Daniel Walker <danielwa@cisco.com>
Signed-off-by: Andrew Lunn <andrew@lunn.ch>
Acked-by: Harini Katakam <harinik@xilinx.com>
Reviewed-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Randy Dunlap [Tue, 23 May 2017 15:19:49 +0000 (08:19 -0700)]
net/phy: fix mdio-octeon dependency and build
Fix build errors by making this driver depend on OF_MDIO, like
several other similar drivers do.
drivers/built-in.o: In function `octeon_mdiobus_remove':
mdio-octeon.c:(.text+0x196ee0): undefined reference to `mdiobus_unregister'
mdio-octeon.c:(.text+0x196ee8): undefined reference to `mdiobus_free'
drivers/built-in.o: In function `octeon_mdiobus_probe':
mdio-octeon.c:(.text+0x196f1d): undefined reference to `devm_mdiobus_alloc_size'
mdio-octeon.c:(.text+0x196ffe): undefined reference to `of_mdiobus_register'
mdio-octeon.c:(.text+0x197010): undefined reference to `mdiobus_free'
Signed-off-by: Randy Dunlap <rdunlap@infradead.org>
Cc: Andrew Lunn <andrew@lunn.ch>
Cc: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
David S. Miller [Wed, 24 May 2017 19:43:57 +0000 (15:43 -0400)]
Merge tag 'mlx5-fixes-2017-05-23' of git://git./linux/kernel/git/saeed/linux
Saeed Mahameed says:
====================
mlx5-fixes-2017-05-23
Some TC offloads fixes from Or Gerlitz.
From Erez, mlx5 IPoIB RX fix to improve GRO.
From Mohamad, Command interface fix to improve mitigation against FW
commands timeouts.
From Tariq, Driver load Tolerance against affinity settings failures.
====================
Signed-off-by: David S. Miller <davem@davemloft.net>
David S. Miller [Wed, 24 May 2017 19:31:39 +0000 (15:31 -0400)]
Merge tag 'mac80211-for-davem-2017-05-23' of git://git./linux/kernel/git/jberg/mac80211
Johannes Berg says:
====================
Just two fixes this time:
* fix the scheduled scan "BUG: scheduling while atomic"
* check mesh address extension flags more strictly
====================
Signed-off-by: David S. Miller <davem@davemloft.net>
Alexander Potapenko [Tue, 23 May 2017 11:20:28 +0000 (13:20 +0200)]
net: rtnetlink: bail out from rtnl_fdb_dump() on parse error
rtnl_fdb_dump() failed to check the result of nlmsg_parse(), which led
to contents of |ifm| being uninitialized because nlh->nlmsglen was too
small to accommodate |ifm|. The uninitialized data may affect some
branches and result in unwanted effects, although kernel data doesn't
seem to leak to the userspace directly.
The bug has been detected with KMSAN and syzkaller.
For the record, here is the KMSAN report:
==================================================================
BUG: KMSAN: use of unitialized memory in rtnl_fdb_dump+0x5dc/0x1000
CPU: 0 PID: 1039 Comm: probe Not tainted 4.11.0-rc5+ #2727
Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS Bochs 01/01/2011
Call Trace:
__dump_stack lib/dump_stack.c:16
dump_stack+0x143/0x1b0 lib/dump_stack.c:52
kmsan_report+0x12a/0x180 mm/kmsan/kmsan.c:1007
__kmsan_warning_32+0x66/0xb0 mm/kmsan/kmsan_instr.c:491
rtnl_fdb_dump+0x5dc/0x1000 net/core/rtnetlink.c:3230
netlink_dump+0x84f/0x1190 net/netlink/af_netlink.c:2168
__netlink_dump_start+0xc97/0xe50 net/netlink/af_netlink.c:2258
netlink_dump_start ./include/linux/netlink.h:165
rtnetlink_rcv_msg+0xae9/0xb40 net/core/rtnetlink.c:4094
netlink_rcv_skb+0x339/0x5a0 net/netlink/af_netlink.c:2339
rtnetlink_rcv+0x83/0xa0 net/core/rtnetlink.c:4110
netlink_unicast_kernel net/netlink/af_netlink.c:1272
netlink_unicast+0x13b7/0x1480 net/netlink/af_netlink.c:1298
netlink_sendmsg+0x10b8/0x10f0 net/netlink/af_netlink.c:1844
sock_sendmsg_nosec net/socket.c:633
sock_sendmsg net/socket.c:643
___sys_sendmsg+0xd4b/0x10f0 net/socket.c:1997
__sys_sendmsg net/socket.c:2031
SYSC_sendmsg+0x2c6/0x3f0 net/socket.c:2042
SyS_sendmsg+0x87/0xb0 net/socket.c:2038
do_syscall_64+0x102/0x150 arch/x86/entry/common.c:285
entry_SYSCALL64_slow_path+0x25/0x25 arch/x86/entry/entry_64.S:246
RIP: 0033:0x401300
RSP: 002b:
00007ffc3b0e6d58 EFLAGS:
00000246 ORIG_RAX:
000000000000002e
RAX:
ffffffffffffffda RBX:
00000000004002b0 RCX:
0000000000401300
RDX:
0000000000000000 RSI:
00007ffc3b0e6d80 RDI:
0000000000000003
RBP:
00007ffc3b0e6e00 R08:
000000000000000b R09:
0000000000000004
R10:
000000000000000d R11:
0000000000000246 R12:
0000000000000000
R13:
00000000004065a0 R14:
0000000000406630 R15:
0000000000000000
origin:
000000008fe00056
save_stack_trace+0x59/0x60 arch/x86/kernel/stacktrace.c:59
kmsan_save_stack_with_flags mm/kmsan/kmsan.c:352
kmsan_internal_poison_shadow+0xb1/0x1a0 mm/kmsan/kmsan.c:247
kmsan_poison_shadow+0x6d/0xc0 mm/kmsan/kmsan.c:260
slab_alloc_node mm/slub.c:2743
__kmalloc_node_track_caller+0x1f4/0x390 mm/slub.c:4349
__kmalloc_reserve net/core/skbuff.c:138
__alloc_skb+0x2cd/0x740 net/core/skbuff.c:231
alloc_skb ./include/linux/skbuff.h:933
netlink_alloc_large_skb net/netlink/af_netlink.c:1144
netlink_sendmsg+0x934/0x10f0 net/netlink/af_netlink.c:1819
sock_sendmsg_nosec net/socket.c:633
sock_sendmsg net/socket.c:643
___sys_sendmsg+0xd4b/0x10f0 net/socket.c:1997
__sys_sendmsg net/socket.c:2031
SYSC_sendmsg+0x2c6/0x3f0 net/socket.c:2042
SyS_sendmsg+0x87/0xb0 net/socket.c:2038
do_syscall_64+0x102/0x150 arch/x86/entry/common.c:285
return_from_SYSCALL_64+0x0/0x6a arch/x86/entry/entry_64.S:246
==================================================================
and the reproducer:
==================================================================
#include <sys/socket.h>
#include <net/if_arp.h>
#include <linux/netlink.h>
#include <stdint.h>
int main()
{
int sock = socket(PF_NETLINK, SOCK_DGRAM | SOCK_NONBLOCK, 0);
struct msghdr msg;
memset(&msg, 0, sizeof(msg));
char nlmsg_buf[32];
memset(nlmsg_buf, 0, sizeof(nlmsg_buf));
struct nlmsghdr *nlmsg = nlmsg_buf;
nlmsg->nlmsg_len = 0x11;
nlmsg->nlmsg_type = 0x1e; // RTM_NEWROUTE = RTM_BASE + 0x0e
// type = 0x0e = 1110b
// kind = 2
nlmsg->nlmsg_flags = 0x101; // NLM_F_ROOT | NLM_F_REQUEST
nlmsg->nlmsg_seq = 0;
nlmsg->nlmsg_pid = 0;
nlmsg_buf[16] = (char)7;
struct iovec iov;
iov.iov_base = nlmsg_buf;
iov.iov_len = 17;
msg.msg_iov = &iov;
msg.msg_iovlen = 1;
sendmsg(sock, &msg, 0);
return 0;
}
==================================================================
Signed-off-by: Alexander Potapenko <glider@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Quentin Schulz [Tue, 23 May 2017 09:48:08 +0000 (11:48 +0200)]
net: fec: add post PHY reset delay DT property
Some PHY require to wait for a bit after the reset GPIO has been
toggled. This adds support for the DT property `phy-reset-post-delay`
which gives the delay in milliseconds to wait after reset.
If the DT property is not given, no delay is observed. Post reset delay
greater than 1000ms are invalid.
Signed-off-by: Quentin Schulz <quentin.schulz@free-electrons.com>
Reviewed-by: Andrew Lunn <andrew@lunn.ch>
Acked-by: Fugang Duan <fugang.duan@nxp.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
David S. Miller [Wed, 24 May 2017 19:21:05 +0000 (15:21 -0400)]
Merge branch 'sctp-dupcookie-fixes'
Xin Long says:
====================
sctp: a bunch of fixes for processing dupcookie
After introducing transport hashtable and per stream info into sctp,
some regressions were caused when processing dupcookie, this patchset
is to fix them.
====================
Signed-off-by: David S. Miller <davem@davemloft.net>
Xin Long [Tue, 23 May 2017 05:28:55 +0000 (13:28 +0800)]
sctp: set new_asoc temp when processing dupcookie
After sctp changed to use transport hashtable, a transport would be
added into global hashtable when adding the peer to an asoc, then
the asoc can be got by searching the transport in the hashtbale.
The problem is when processing dupcookie in sctp_sf_do_5_2_4_dupcook,
a new asoc would be created. A peer with the same addr and port as
the one in the old asoc might be added into the new asoc, but fail
to be added into the hashtable, as they also belong to the same sk.
It causes that sctp's dupcookie processing can not really work.
Since the new asoc will be freed after copying it's information to
the old asoc, it's more like a temp asoc. So this patch is to fix
it by setting it as a temp asoc to avoid adding it's any transport
into the hashtable and also avoid allocing assoc_id.
An extra thing it has to do is to also alloc stream info for any
temp asoc, as sctp dupcookie process needs it to update old asoc.
But I don't think it would hurt something, as a temp asoc would
always be freed after finishing processing cookie echo packet.
Reported-by: Jianwen Ji <jiji@redhat.com>
Signed-off-by: Xin Long <lucien.xin@gmail.com>
Acked-by: Neil Horman <nhorman@tuxdriver.com>
Acked-by: Vlad Yasevich <vyasevich@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Xin Long [Tue, 23 May 2017 05:28:54 +0000 (13:28 +0800)]
sctp: fix stream update when processing dupcookie
Since commit
3dbcc105d556 ("sctp: alloc stream info when initializing
asoc"), stream and stream.out info are always alloced when creating
an asoc.
So it's not correct to check !asoc->stream before updating stream
info when processing dupcookie, but would be better to check asoc
state instead.
Fixes:
3dbcc105d556 ("sctp: alloc stream info when initializing asoc")
Signed-off-by: Xin Long <lucien.xin@gmail.com>
Acked-by: Neil Horman <nhorman@tuxdriver.com>
Acked-by: Vlad Yasevich <vyasevich@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Jesper Dangaard Brouer [Mon, 22 May 2017 18:13:07 +0000 (20:13 +0200)]
mlx5: fix bug reading rss_hash_type from CQE
Masks for extracting part of the Completion Queue Entry (CQE)
field rss_hash_type was swapped, namely CQE_RSS_HTYPE_IP and
CQE_RSS_HTYPE_L4.
The bug resulted in setting skb->l4_hash, even-though the
rss_hash_type indicated that hash was NOT computed over the
L4 (UDP or TCP) part of the packet.
Added comments from the datasheet, to make it more clear what
these masks are selecting.
Signed-off-by: Jesper Dangaard Brouer <brouer@redhat.com>
Acked-by: Saeed Mahameed <saeedm@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Oliver Neukum [Mon, 22 May 2017 12:50:30 +0000 (14:50 +0200)]
cdc-ether: divorce initialisation with a filter reset and a generic method
Some devices need their multicast filter reset but others are crashed by that.
So the methods need to be separated.
Signed-off-by: Oliver Neukum <oneukum@suse.com>
Reported-by: "Ridgway, Keith" <kridgway@harris.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
David S. Miller [Tue, 23 May 2017 14:51:32 +0000 (10:51 -0400)]
Merge branch 'master' of git://git./linux/kernel/git/klassert/ipsec
Steffen Klassert says:
====================
pull request (net): ipsec 2017-05-23
1) Fix wrong header offset for esp4 udpencap packets.
2) Fix a stack access out of bounds when creating a bundle
with sub policies. From Sabrina Dubroca.
3) Fix slab-out-of-bounds in pfkey due to an incorrect
sadb_x_sec_len calculation.
4) We checked the wrong feature flags when taking down
an interface with IPsec offload enabled.
Fix from Ilan Tayari.
5) Copy the anti replay sequence numbers when doing a state
migration, otherwise we get out of sync with the sequence
numbers. Fix from Antony Antony.
Please pull or let me know if there are problems.
====================
Signed-off-by: David S. Miller <davem@davemloft.net>
Tariq Toukan [Thu, 18 May 2017 10:34:43 +0000 (13:34 +0300)]
net/mlx5: Tolerate irq_set_affinity_hint() failures
Add tolerance to failures of irq_set_affinity_hint().
Its role is to give hints that optimizes performance,
and should not block the driver load.
In non-SMP systems, functionality is not available as
there is a single core, and all these calls definitely
fail. Hence, do not call the function and avoid the
warning prints.
Fixes:
db058a186f98 ("net/mlx5_core: Set irq affinity hints")
Signed-off-by: Tariq Toukan <tariqt@mellanox.com>
Cc: kernel-team@fb.com
Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
Mohamad Haj Yahia [Thu, 23 Feb 2017 09:19:36 +0000 (11:19 +0200)]
net/mlx5: Avoid using pending command interface slots
Currently when firmware command gets stuck or it takes long time to
complete, the driver command will get timeout and the command slot is
freed and can be used for new commands, and if the firmware receive new
command on the old busy slot its behavior is unexpected and this could
be harmful.
To fix this when the driver command gets timeout we return failure,
but we don't free the command slot and we wait for the firmware to
explicitly respond to that command.
Once all the entries are busy we will stop processing new firmware
commands.
Fixes:
9cba4ebcf374 ('net/mlx5: Fix potential deadlock in command mode change')
Signed-off-by: Mohamad Haj Yahia <mohamad@mellanox.com>
Cc: kernel-team@fb.com
Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
Erez Shitrit [Thu, 27 Apr 2017 14:59:00 +0000 (17:59 +0300)]
net/mlx5e: IPoIB, handle RX packet correctly
IPoIB packet contains the pseudo header area, we need to pull it prior
to reset_mac_header in order to let the GRO work well.
In more details:
GRO checks the mac address of the new coming packet, it does that by
comparing the hard_header_len size of the current packet to the previous
one in that session, the comparison is over hard_header_len size.
Now, the driver prepares that area in the skb by allocating area from the
reserved part and resetting the correct mac header to it.
Fixes:
9d6bd752c63c ("net/mlx5e: IPoIB, RX handler")
Signed-off-by: Erez Shitrit <erezsh@mellanox.com>
Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
Or Gerlitz [Tue, 9 May 2017 10:37:26 +0000 (13:37 +0300)]
net/mlx5e: Fix warnings around parsing of TC pedit actions
The sparse tool emits these correct complaints:
drivers/net/ethernet/mellanox/mlx5/core//en_tc.c:1005:25: warning: cast to restricted __be32
drivers/net/ethernet/mellanox/mlx5/core//en_tc.c:1007:25: warning: cast to restricted __be16
The value is provided from user-space in network order, but there's
no way for them to realize that, avoid the warnings by casting to the
appropriate type.
Fixes:
d79b6df6b10a ('net/mlx5e: Add parsing of TC pedit actions to HW format')
Signed-off-by: Or Gerlitz <ogerlitz@mellanox.com>
Reported-by: Leon Romanovsky <leonro@mellanox.com>
Reviewed-by: Paul Blakey <paulb@mellanox.com>
Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
Or Gerlitz [Tue, 9 May 2017 16:02:42 +0000 (19:02 +0300)]
net/mlx5e: Properly enforce disallowing of partial field re-write offload
Currently we don't support partial header re-writes through TC pedit
action offloading. However, the code that enforces that wasn't err-ing
on cases where the first and last bits of the mask are set but there is
some zero bit between them, such as in the below example, fix that!
tc filter add dev enp1s0 protocol ip parent ffff: prio 10 flower
ip_proto udp dst_port 2001 skip_sw
action pedit munge ip src set 1.0.0.1 retain 0xff0000ff
Fixes:
d79b6df6b10a ('net/mlx5e: Add parsing of TC pedit actions to HW format')
Signed-off-by: Or Gerlitz <ogerlitz@mellanox.com>
Reviewed-by: Paul Blakey <paulb@mellanox.com>
Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
Or Gerlitz [Wed, 10 May 2017 10:59:54 +0000 (13:59 +0300)]
net/mlx5e: Allow TC csum offload if applied together with pedit action
When offloading header re-writes, the HW re-calculates the relevant L3/L4
checksums. Hence, when upper layers (as done by OVS) ask for TC checksum action
offload together with pedit offload, don't err. This command now works:
tc filter add dev ens1f0 protocol ip parent ffff: prio 20 flower skip_sw
ip_proto tcp dst_port 9001
action pedit ex munge tcp dport set 0x1234 pipe
action csum tcp
Signed-off-by: Or Gerlitz <ogerlitz@mellanox.com>
Reported-by: Paul Blakey <paulb@mellanox.com>
Reviewed-by: Paul Blakey <paulb@mellanox.com>
Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
Or Gerlitz [Wed, 10 May 2017 10:48:41 +0000 (13:48 +0300)]
net/sched: act_csum: Add accessors for offloading drivers
Add the accessors for realizing if this is a csum action,
and for which fields checksum is needed.
Signed-off-by: Or Gerlitz <ogerlitz@mellanox.com>
Reviewed-by: Paul Blakey <paulb@mellanox.com>
Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
Or Gerlitz [Tue, 9 May 2017 17:45:06 +0000 (20:45 +0300)]
net/mlx5e: Use the correct delete call on offloaded TC encap entry detach
We wrongly direcly invoke hlist_del_rcu() and not hash_del_rcu() which
does a slightly different call now and may change later, fix that.
Fixes:
a54e20b4fcae ('net/mlx5e: Add basic TC tunnel set action for SRIOV offloads')
Signed-off-by: Or Gerlitz <ogerlitz@mellanox.com>
Reported-by: Paul Blakey <paulb@mellanox.com>
Reviewed-by: Paul Blakey <paulb@mellanox.com>
Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
Arend Van Spriel [Tue, 23 May 2017 08:58:07 +0000 (09:58 +0100)]
cfg80211: make cfg80211_sched_scan_results() work from atomic context
Drivers should be able to call cfg80211_sched_scan_results() from atomic
context. However, with the introduction of multiple scheduled scan feature
this requirement was not taken into account resulting in regression shown
below.
[ 119.021594] BUG: scheduling while atomic: irq/47-iwlwifi/517/0x00000200
[ 119.021604] Modules linked in: [...]
[ 119.021759] CPU: 1 PID: 517 Comm: irq/47-iwlwifi Not tainted 4.12.0-rc2-t440s-
20170522+ #1
[ 119.021763] Hardware name: LENOVO 20AQS03H00/20AQS03H00, BIOS GJET91WW (2.41 ) 09/21/2016
[ 119.021766] Call Trace:
[ 119.021778] ? dump_stack+0x5c/0x84
[ 119.021784] ? __schedule_bug+0x4c/0x70
[ 119.021792] ? __schedule+0x496/0x5c0
[ 119.021798] ? schedule+0x2d/0x80
[ 119.021804] ? schedule_preempt_disabled+0x5/0x10
[ 119.021810] ? __mutex_lock.isra.0+0x18e/0x4c0
[ 119.021817] ? __wake_up+0x2f/0x50
[ 119.021833] ? cfg80211_sched_scan_results+0x19/0x60 [cfg80211]
[ 119.021844] ? cfg80211_sched_scan_results+0x19/0x60 [cfg80211]
[ 119.021859] ? iwl_mvm_rx_lmac_scan_iter_complete_notif+0x17/0x30 [iwlmvm]
[ 119.021869] ? iwl_pcie_rx_handle+0x2a9/0x7e0 [iwlwifi]
[ 119.021878] ? iwl_pcie_irq_handler+0x17c/0x730 [iwlwifi]
[ 119.021884] ? irq_forced_thread_fn+0x60/0x60
[ 119.021887] ? irq_thread_fn+0x16/0x40
[ 119.021892] ? irq_thread+0x109/0x180
[ 119.021896] ? wake_threads_waitq+0x30/0x30
[ 119.021901] ? kthread+0xf2/0x130
[ 119.021905] ? irq_thread_dtor+0x90/0x90
[ 119.021910] ? kthread_create_on_node+0x40/0x40
[ 119.021915] ? ret_from_fork+0x26/0x40
Fixes:
b34939b98369 ("cfg80211: add request id to cfg80211_sched_scan_*() api")
Reported-by: Sander Eikelenboom <linux@eikelenboom.it>
Signed-off-by: Arend van Spriel <arend.vanspriel@broadcom.com>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Linus Torvalds [Tue, 23 May 2017 02:31:07 +0000 (19:31 -0700)]
Merge tag 'pstore-v4.12-rc3' of git://git./linux/kernel/git/kees/linux
Pull pstore fix from Kees Cook:
"Marta noticed another misbehavior in EFI pstore, which this fixes.
Hopefully this is the last of the v4.12 fixes for pstore!"
* tag 'pstore-v4.12-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/kees/linux:
efi-pstore: Fix write/erase id tracking
Linus Torvalds [Tue, 23 May 2017 02:26:33 +0000 (19:26 -0700)]
Merge tag 'acpi-4.12-rc3' of git://git./linux/kernel/git/rafael/linux-pm
Pull ACPI fixes from Rafael Wysocki:
"These revert a 4.11 change that turned out to be problematic and add a
.gitignore file.
Specifics:
- Revert a 4.11 commit related to the ACPI-based handling of laptop
lids that made changes incompatible with existing user space stacks
and broke things there (Lv Zheng).
- Add .gitignore to the ACPI tools directory (Prarit Bhargava)"
* tag 'acpi-4.12-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm:
Revert "ACPI / button: Remove lid_init_state=method mode"
tools/power/acpi: Add .gitignore file
Linus Torvalds [Tue, 23 May 2017 02:24:32 +0000 (19:24 -0700)]
Merge tag 'pm-4.12-rc3' of git://git./linux/kernel/git/rafael/linux-pm
Pull power management fixes from Rafael Wysocki:
"These fix RTC wakeup from suspend-to-idle broken recently, fix CPU
idleness detection condition in the schedutil cpufreq governor, fix a
cpufreq driver build failure, fix an error code path in the power
capping framework, clean up the hibernate core and update the
intel_pstate documentation.
Specifics:
- Fix RTC wakeup from suspend-to-idle broken by the recent rework of
ACPI wakeup handling (Rafael Wysocki).
- Update intel_pstate driver documentation to reflect the current
code and explain how it works in more detail (Rafael Wysocki).
- Fix an issue related to CPU idleness detection on systems with
shared cpufreq policies in the schedutil governor (Juri Lelli).
- Fix a possible build issue in the dbx500 cpufreq driver (Arnd
Bergmann).
- Fix a function in the power capping framework core to return an
error code instead of 0 when there's an error (Dan Carpenter).
- Clean up variable definition in the hibernation core (Pushkar
Jambhlekar)"
* tag 'pm-4.12-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm:
cpufreq: dbx500: add a Kconfig symbol
PM / hibernate: Declare variables as static
PowerCap: Fix an error code in powercap_register_zone()
RTC: rtc-cmos: Fix wakeup from suspend-to-idle
PM / wakeup: Fix up wakeup_source_report_event()
cpufreq: intel_pstate: Document the current behavior and user interface
cpufreq: schedutil: use now as reference when aggregating shared policy requests
Jan Kiszka [Mon, 22 May 2017 05:46:55 +0000 (07:46 +0200)]
i2c: designware: Fix bogus sda_hold_time due to uninitialized vars
We need to initializes those variables to 0 for platforms that do not
provide ACPI parameters. Otherwise, we set sda_hold_time to random
values, breaking e.g. Galileo and IOT2000 boards.
Reported-and-tested-by: Linus Torvalds <torvalds@linux-foundation.org>
Reported-by: Tobias Klausmann <tobias.johannes.klausmann@mni.thm.de>
Fixes:
9d6408433019 ("i2c: designware: don't infer timings described by ACPI from clock rate")
Signed-off-by: Jan Kiszka <jan.kiszka@siemens.com>
Reviewed-by: Ard Biesheuvel <ard.biesheuvel@linaro.org>
Acked-by: Jarkko Nikula <jarkko.nikula@linux.intel.com>
Signed-off-by: Wolfram Sang <wsa@the-dreams.de>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Kees Cook [Thu, 18 May 2017 20:07:49 +0000 (13:07 -0700)]
efi-pstore: Fix write/erase id tracking
Prior to the pstore interface refactoring, the "id" generated during
a backend pstore_write() was only retained by the internal pstore
inode tracking list. Additionally the "part" was ignored, so EFI
would encode this in the id. This corrects the misunderstandings
and correctly sets "id" during pstore_write(), and uses "part"
directly during pstore_erase().
Reported-by: Marta Lofstedt <marta.lofstedt@intel.com>
Fixes:
76cc9580e3fb ("pstore: Replace arguments for write() API")
Fixes:
a61072aae693 ("pstore: Replace arguments for erase() API")
Signed-off-by: Kees Cook <keescook@chromium.org>
Tested-by: Marta Lofstedt <marta.lofstedt@intel.com>
Linus Torvalds [Mon, 22 May 2017 19:42:02 +0000 (12:42 -0700)]
Merge git://git./linux/kernel/git/davem/net
Pull networking fixes from David Miller:
"Mostly netfilter bug fixes in here, but we have some bits elsewhere as
well.
1) Don't do SNAT replies for non-NATed connections in IPVS, from
Julian Anastasov.
2) Don't delete conntrack helpers while they are still in use, from
Liping Zhang.
3) Fix zero padding in xtables's xt_data_to_user(), from Willem de
Bruijn.
4) Add proper RCU protection to nf_tables_dump_set() because we
cannot guarantee that we hold the NFNL_SUBSYS_NFTABLES lock. From
Liping Zhang.
5) Initialize rcv_mss in tcp_disconnect(), from Wei Wang.
6) smsc95xx devices can't handle IPV6 checksums fully, so don't
advertise support for offloading them. From Nisar Sayed.
7) Fix out-of-bounds access in __ip6_append_data(), from Eric
Dumazet.
8) Make atl2_probe() propagate the error code properly on failures,
from Alexey Khoroshilov.
9) arp_target[] in bond_check_params() is used uninitialized. This
got changes from a global static to a local variable, which is how
this mistake happened. Fix from Jarod Wilson.
10) Fix fallout from unnecessary NULL check removal in cls_matchall,
from Jiri Pirko. This is definitely brown paper bag territory..."
* git://git.kernel.org/pub/scm/linux/kernel/git/davem/net: (26 commits)
net: sched: cls_matchall: fix null pointer dereference
vsock: use new wait API for vsock_stream_sendmsg()
bonding: fix randomly populated arp target array
net: Make IP alignment calulations clearer.
bonding: fix accounting of active ports in 3ad
net: atheros: atl2: don't return zero on failure path in atl2_probe()
ipv6: fix out of bound writes in __ip6_append_data()
bridge: start hello_timer when enabling KERNEL_STP in br_stp_start
smsc95xx: Support only IPv4 TCP/UDP csum offload
arp: always override existing neigh entries with gratuitous ARP
arp: postpone addr_type calculation to as late as possible
arp: decompose is_garp logic into a separate function
arp: fixed error in a comment
tcp: initialize rcv_mss to TCP_MIN_MSS instead of 0
netfilter: xtables: fix build failure from COMPAT_XT_ALIGN outside CONFIG_COMPAT
ebtables: arpreply: Add the standard target sanity check
netfilter: nf_tables: revisit chain/object refcounting from elements
netfilter: nf_tables: missing sanitization in data from userspace
netfilter: nf_tables: can't assume lock is acquired when dumping set elems
netfilter: synproxy: fix conntrackd interaction
...
Jiri Pirko [Mon, 22 May 2017 14:46:13 +0000 (16:46 +0200)]
net: sched: cls_matchall: fix null pointer dereference
Since the head is guaranteed by the check above to be null, the call_rcu
would explode. Remove the previously logically dead code that was made
logically very much alive and kicking.
Fixes:
985538eee06f ("net/sched: remove redundant null check on head")
Signed-off-by: Jiri Pirko <jiri@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
WANG Cong [Fri, 19 May 2017 18:21:59 +0000 (11:21 -0700)]
vsock: use new wait API for vsock_stream_sendmsg()
As reported by Michal, vsock_stream_sendmsg() could still
sleep at vsock_stream_has_space() after prepare_to_wait():
vsock_stream_has_space
vmci_transport_stream_has_space
vmci_qpair_produce_free_space
qp_lock
qp_acquire_queue_mutex
mutex_lock
Just switch to the new wait API like we did for commit
d9dc8b0f8b4e ("net: fix sleeping for sk_wait_event()").
Reported-by: Michal Kubecek <mkubecek@suse.cz>
Cc: Stefan Hajnoczi <stefanha@redhat.com>
Cc: Jorgen Hansen <jhansen@vmware.com>
Cc: "Michael S. Tsirkin" <mst@redhat.com>
Cc: Claudio Imbrenda <imbrenda@linux.vnet.ibm.com>
Signed-off-by: Cong Wang <xiyou.wangcong@gmail.com>
Reviewed-by: Stefan Hajnoczi <stefanha@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Jarod Wilson [Fri, 19 May 2017 18:46:46 +0000 (14:46 -0400)]
bonding: fix randomly populated arp target array
In commit
dc9c4d0fe023, the arp_target array moved from a static global
to a local variable. By the nature of static globals, the array used to
be initialized to all 0. At present, it's full of random data, which
that gets interpreted as arp_target values, when none have actually been
specified. Systems end up booting with spew along these lines:
[ 32.161783] IPv6: ADDRCONF(NETDEV_UP): lacp0: link is not ready
[ 32.168475] IPv6: ADDRCONF(NETDEV_UP): lacp0: link is not ready
[ 32.175089] 8021q: adding VLAN 0 to HW filter on device lacp0
[ 32.193091] IPv6: ADDRCONF(NETDEV_UP): lacp0: link is not ready
[ 32.204892] lacp0: Setting MII monitoring interval to 100
[ 32.211071] lacp0: Removing ARP target 216.124.228.17
[ 32.216824] lacp0: Removing ARP target 218.160.255.255
[ 32.222646] lacp0: Removing ARP target 185.170.136.184
[ 32.228496] lacp0: invalid ARP target 255.255.255.255 specified for removal
[ 32.236294] lacp0: option arp_ip_target: invalid value (-255.255.255.255)
[ 32.243987] lacp0: Removing ARP target 56.125.228.17
[ 32.249625] lacp0: Removing ARP target 218.160.255.255
[ 32.255432] lacp0: Removing ARP target 15.157.233.184
[ 32.261165] lacp0: invalid ARP target 255.255.255.255 specified for removal
[ 32.268939] lacp0: option arp_ip_target: invalid value (-255.255.255.255)
[ 32.276632] lacp0: Removing ARP target 16.0.0.0
[ 32.281755] lacp0: Removing ARP target 218.160.255.255
[ 32.287567] lacp0: Removing ARP target 72.125.228.17
[ 32.293165] lacp0: Removing ARP target 218.160.255.255
[ 32.298970] lacp0: Removing ARP target 8.125.228.17
[ 32.304458] lacp0: Removing ARP target 218.160.255.255
None of these were actually specified as ARP targets, and the driver does
seem to clean up the mess okay, but it's rather noisy and confusing, leaks
values to userspace, and the 255.255.255.255 spew shows up even when debug
prints are disabled.
The fix: just zero out arp_target at init time.
While we're in here, init arp_all_targets_value in the right place.
Fixes:
dc9c4d0fe023 ("bonding: reduce scope of some global variables")
CC: Mahesh Bandewar <maheshb@google.com>
CC: Jay Vosburgh <j.vosburgh@gmail.com>
CC: Veaceslav Falico <vfalico@gmail.com>
CC: Andy Gospodarek <andy@greyhouse.net>
CC: netdev@vger.kernel.org
CC: stable@vger.kernel.org
Signed-off-by: Jarod Wilson <jarod@redhat.com>
Acked-by: Andy Gospodarek <andy@greyhouse.net>
Signed-off-by: David S. Miller <davem@davemloft.net>
Rafael J. Wysocki [Mon, 22 May 2017 18:32:05 +0000 (20:32 +0200)]
Merge branches 'pm-sleep' and 'powercap'
* pm-sleep:
PM / hibernate: Declare variables as static
RTC: rtc-cmos: Fix wakeup from suspend-to-idle
PM / wakeup: Fix up wakeup_source_report_event()
* powercap:
PowerCap: Fix an error code in powercap_register_zone()
Rafael J. Wysocki [Mon, 22 May 2017 18:29:06 +0000 (20:29 +0200)]
Merge branches 'acpi-button' and 'acpi-tools'
* acpi-button:
Revert "ACPI / button: Remove lid_init_state=method mode"
* acpi-tools:
tools/power/acpi: Add .gitignore file
Rafael J. Wysocki [Mon, 22 May 2017 18:28:22 +0000 (20:28 +0200)]
Merge branches 'intel_pstate', 'pm-cpufreq' and 'pm-cpufreq-sched'
* intel_pstate:
cpufreq: intel_pstate: Document the current behavior and user interface
* pm-cpufreq:
cpufreq: dbx500: add a Kconfig symbol
* pm-cpufreq-sched:
cpufreq: schedutil: use now as reference when aggregating shared policy requests
David S. Miller [Mon, 22 May 2017 16:27:07 +0000 (12:27 -0400)]
net: Make IP alignment calulations clearer.
The assignmnet:
ip_align = strict ? 2 : NET_IP_ALIGN;
in compare_pkt_ptr_alignment() trips up Coverity because we can only
get to this code when strict is true, therefore ip_align will always
be 2 regardless of NET_IP_ALIGN's value.
So just assign directly to '2' and explain the situation in the
comment above.
Reported-by: "Gustavo A. R. Silva" <garsilva@embeddedor.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Jarod Wilson [Fri, 19 May 2017 23:43:45 +0000 (19:43 -0400)]
bonding: fix accounting of active ports in 3ad
As of
7bb11dc9f59d and
0622cab0341c, bond slaves in a 3ad bond are not
removed from the aggregator when they are down, and the active slave count
is NOT equal to number of ports in the aggregator, but rather the number
of ports in the aggregator that are still enabled. The sysfs spew for
bonding_show_ad_num_ports() has a comment that says "Show number of active
802.3ad ports.", but it's currently showing total number of ports, both
active and inactive. Remedy it by using the same logic introduced in
0622cab0341c in __bond_3ad_get_active_agg_info(), so sysfs, procfs and
netlink all report the number of active ports. Note that this means that
IFLA_BOND_AD_INFO_NUM_PORTS really means NUM_ACTIVE_PORTS instead of
NUM_PORTS, and thus perhaps should be renamed for clarity.
Lightly tested on a dual i40e lacp bond, simulating link downs with an ip
link set dev <slave2> down, was able to produce the state where I could
see both in the same aggregator, but a number of ports count of 1.
MII Status: up
Active Aggregator Info:
Aggregator ID: 1
Number of ports: 2 <---
Slave Interface: ens10
MII Status: up <---
Aggregator ID: 1
Slave Interface: ens11
MII Status: up
Aggregator ID: 1
MII Status: up
Active Aggregator Info:
Aggregator ID: 1
Number of ports: 1 <---
Slave Interface: ens10
MII Status: down <---
Aggregator ID: 1
Slave Interface: ens11
MII Status: up
Aggregator ID: 1
CC: Jay Vosburgh <j.vosburgh@gmail.com>
CC: Veaceslav Falico <vfalico@gmail.com>
CC: Andy Gospodarek <andy@greyhouse.net>
CC: netdev@vger.kernel.org
Signed-off-by: Jarod Wilson <jarod@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Alexey Khoroshilov [Fri, 19 May 2017 22:52:11 +0000 (01:52 +0300)]
net: atheros: atl2: don't return zero on failure path in atl2_probe()
If dma mask checks fail in atl2_probe(), it breaks off initialization,
deallocates all resources, but returns zero.
The patch adds proper error code return value and
make error code setup unified.
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>
Eric Dumazet [Fri, 19 May 2017 21:17:48 +0000 (14:17 -0700)]
ipv6: fix out of bound writes in __ip6_append_data()
Andrey Konovalov and idaifish@gmail.com reported crashes caused by
one skb shared_info being overwritten from __ip6_append_data()
Andrey program lead to following state :
copy -4200 datalen 2000 fraglen 2040
maxfraglen 2040 alloclen 2048 transhdrlen 0 offset 0 fraggap 6200
The skb_copy_and_csum_bits(skb_prev, maxfraglen, data + transhdrlen,
fraggap, 0); is overwriting skb->head and skb_shared_info
Since we apparently detect this rare condition too late, move the
code earlier to even avoid allocating skb and risking crashes.
Once again, many thanks to Andrey and syzkaller team.
Signed-off-by: Eric Dumazet <edumazet@google.com>
Reported-by: Andrey Konovalov <andreyknvl@google.com>
Tested-by: Andrey Konovalov <andreyknvl@google.com>
Reported-by: <idaifish@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Linus Torvalds [Mon, 22 May 2017 02:30:23 +0000 (19:30 -0700)]
Linux 4.12-rc2
Linus Torvalds [Mon, 22 May 2017 01:26:54 +0000 (18:26 -0700)]
x86: fix 32-bit case of __get_user_asm_u64()
The code to fetch a 64-bit value from user space was entirely buggered,
and has been since the code was merged in early 2016 in commit
b2f680380ddf ("x86/mm/32: Add support for 64-bit __get_user() on 32-bit
kernels").
Happily the buggered routine is almost certainly entirely unused, since
the normal way to access user space memory is just with the non-inlined
"get_user()", and the inlined version didn't even historically exist.
The normal "get_user()" case is handled by external hand-written asm in
arch/x86/lib/getuser.S that doesn't have either of these issues.
There were two independent bugs in __get_user_asm_u64():
- it still did the STAC/CLAC user space access marking, even though
that is now done by the wrapper macros, see commit
11f1a4b9755f
("x86: reorganize SMAP handling in user space accesses").
This didn't result in a semantic error, it just means that the
inlined optimized version was hugely less efficient than the
allegedly slower standard version, since the CLAC/STAC overhead is
quite high on modern Intel CPU's.
- the double register %eax/%edx was marked as an output, but the %eax
part of it was touched early in the asm, and could thus clobber other
inputs to the asm that gcc didn't expect it to touch.
In particular, that meant that the generated code could look like
this:
mov (%eax),%eax
mov 0x4(%eax),%edx
where the load of %edx obviously was _supposed_ to be from the 32-bit
word that followed the source of %eax, but because %eax was
overwritten by the first instruction, the source of %edx was
basically random garbage.
The fixes are trivial: remove the extraneous STAC/CLAC entries, and mark
the 64-bit output as early-clobber to let gcc know that no inputs should
alias with the output register.
Cc: Al Viro <viro@zeniv.linux.org.uk>
Cc: Benjamin LaHaise <bcrl@kvack.org>
Cc: Ingo Molnar <mingo@kernel.org>
Cc: stable@kernel.org # v4.8+
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Linus Torvalds [Sun, 21 May 2017 22:25:46 +0000 (15:25 -0700)]
Clean up x86 unsafe_get/put_user() type handling
Al noticed that unsafe_put_user() had type problems, and fixed them in
commit
a7cc722fff0b ("fix unsafe_put_user()"), which made me look more
at those functions.
It turns out that unsafe_get_user() had a type issue too: it limited the
largest size of the type it could handle to "unsigned long". Which is
fine with the current users, but doesn't match our existing normal
get_user() semantics, which can also handle "u64" even when that does
not fit in a long.
While at it, also clean up the type cast in unsafe_put_user(). We
actually want to just make it an assignment to the expected type of the
pointer, because we actually do want warnings from types that don't
convert silently. And it makes the code more readable by not having
that one very long and complex line.
[ This patch might become stable material if we ever end up back-porting
any new users of the unsafe uaccess code, but as things stand now this
doesn't matter for any current existing uses. ]
Cc: Al Viro <viro@zeniv.linux.org.uk>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Linus Torvalds [Sun, 21 May 2017 19:06:44 +0000 (12:06 -0700)]
Merge branch 'for-linus' of git://git./linux/kernel/git/viro/vfs
Pull misc uaccess fixes from Al Viro:
"Fix for unsafe_put_user() (no callers currently in mainline, but
anyone starting to use it will step into that) + alpha osf_wait4()
infoleak fix"
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs:
osf_wait4(): fix infoleak
fix unsafe_put_user()
Linus Torvalds [Sun, 21 May 2017 18:52:00 +0000 (11:52 -0700)]
Merge branch 'sched-urgent-for-linus' of git://git./linux/kernel/git/tip/tip
Pull scheduler fix from Thomas Gleixner:
"A single scheduler fix:
Prevent idle task from ever being preempted. That makes sure that
synchronize_rcu_tasks() which is ignoring idle task does not pretend
that no task is stuck in preempted state. If that happens and idle was
preempted on a ftrace trampoline the machine crashes due to
inconsistent state"
* 'sched-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
sched/core: Call __schedule() from do_idle() without enabling preemption
Linus Torvalds [Sun, 21 May 2017 18:45:26 +0000 (11:45 -0700)]
Merge branch 'irq-urgent-for-linus' of git://git./linux/kernel/git/tip/tip
Pull irq fixes from Thomas Gleixner:
"A set of small fixes for the irq subsystem:
- Cure a data ordering problem with chained interrupts
- Three small fixlets for the mbigen irq chip"
* 'irq-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
genirq: Fix chained interrupt data ordering
irqchip/mbigen: Fix the clear register offset calculation
irqchip/mbigen: Fix potential NULL dereferencing
irqchip/mbigen: Fix memory mapping code
Xin Long [Fri, 19 May 2017 14:20:29 +0000 (22:20 +0800)]
bridge: start hello_timer when enabling KERNEL_STP in br_stp_start
Since commit
76b91c32dd86 ("bridge: stp: when using userspace stp stop
kernel hello and hold timers"), bridge would not start hello_timer if
stp_enabled is not KERNEL_STP when br_dev_open.
The problem is even if users set stp_enabled with KERNEL_STP later,
the timer will still not be started. It causes that KERNEL_STP can
not really work. Users have to re-ifup the bridge to avoid this.
This patch is to fix it by starting br->hello_timer when enabling
KERNEL_STP in br_stp_start.
As an improvement, it's also to start hello_timer again only when
br->stp_enabled is KERNEL_STP in br_hello_timer_expired, there is
no reason to start the timer again when it's NO_STP.
Fixes:
76b91c32dd86 ("bridge: stp: when using userspace stp stop kernel hello and hold timers")
Reported-by: Haidong Li <haili@redhat.com>
Signed-off-by: Xin Long <lucien.xin@gmail.com>
Acked-by: Nikolay Aleksandrov <nikolay@cumulusnetworks.com>
Reviewed-by: Ivan Vecera <cera@cera.cz>
Signed-off-by: David S. Miller <davem@davemloft.net>
Nisar Sayed [Fri, 19 May 2017 14:00:25 +0000 (14:00 +0000)]
smsc95xx: Support only IPv4 TCP/UDP csum offload
When TX checksum offload is used, if the computed checksum is 0 the
LAN95xx device do not alter the checksum to 0xffff. In the case of ipv4
UDP checksum, it indicates to receiver that no checksum is calculated.
Under ipv6, UDP checksum yields a result of zero must be changed to
0xffff. Hence disabling checksum offload for ipv6 packets.
Signed-off-by: Nisar Sayed <Nisar.Sayed@microchip.com>
Reported-by: popcorn mix <popcornmix@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
David S. Miller [Sun, 21 May 2017 17:26:46 +0000 (13:26 -0400)]
Merge branch 'arp-always-override-existing-neigh-entries-with-gratuitous-ARP'
Ihar Hrachyshka says:
====================
arp: always override existing neigh entries with gratuitous ARP
This patchset is spurred by discussion started at
https://patchwork.ozlabs.org/patch/760372/ where we figured that there is no
real reason for enforcing override by gratuitous ARP packets only when
arp_accept is 1. Same should happen when it's 0 (the default value).
changelog v2: handled review comments by Julian Anastasov
- fixed a mistake in a comment;
- postponed addr_type calculation to as late as possible.
====================
Signed-off-by: David S. Miller <davem@davemloft.net>
Ihar Hrachyshka [Thu, 18 May 2017 19:41:21 +0000 (12:41 -0700)]
arp: always override existing neigh entries with gratuitous ARP
Currently, when arp_accept is 1, we always override existing neigh
entries with incoming gratuitous ARP replies. Otherwise, we override
them only if new replies satisfy _locktime_ conditional (packets arrive
not earlier than _locktime_ seconds since the last update to the neigh
entry).
The idea behind locktime is to pick the very first (=> close) reply
received in a unicast burst when ARP proxies are used. This helps to
avoid ARP thrashing where Linux would switch back and forth from one
proxy to another.
This logic has nothing to do with gratuitous ARP replies that are
generally not aligned in time when multiple IP address carriers send
them into network.
This patch enforces overriding of existing neigh entries by all incoming
gratuitous ARP packets, irrespective of their time of arrival. This will
make the kernel honour all incoming gratuitous ARP packets.
Signed-off-by: Ihar Hrachyshka <ihrachys@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Ihar Hrachyshka [Thu, 18 May 2017 19:41:20 +0000 (12:41 -0700)]
arp: postpone addr_type calculation to as late as possible
The addr_type retrieval can be costly, so it's worth trying to avoid its
calculation as much as possible. This patch makes it calculated only
for gratuitous ARP packets. This is especially important since later we
may want to move is_garp calculation outside of arp_accept block, at
which point the costly operation will be executed for all setups.
The patch is the result of a discussion in net-dev:
http://marc.info/?l=linux-netdev&m=
149506354216994
Suggested-by: Julian Anastasov <ja@ssi.bg>
Signed-off-by: Ihar Hrachyshka <ihrachys@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Ihar Hrachyshka [Thu, 18 May 2017 19:41:19 +0000 (12:41 -0700)]
arp: decompose is_garp logic into a separate function
The code is quite involving already to earn a separate function for
itself. If anything, it helps arp_process readability.
Signed-off-by: Ihar Hrachyshka <ihrachys@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Ihar Hrachyshka [Thu, 18 May 2017 19:41:18 +0000 (12:41 -0700)]
arp: fixed error in a comment
the is_garp code deals just with gratuitous ARP packets, not every
unsolicited packet.
This patch is a result of a discussion in netdev:
http://marc.info/?l=linux-netdev&m=
149506354216994
Suggested-by: Julian Anastasov <ja@ssi.bg>
Signed-off-by: Ihar Hrachyshka <ihrachys@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Wei Wang [Thu, 18 May 2017 18:22:33 +0000 (11:22 -0700)]
tcp: initialize rcv_mss to TCP_MIN_MSS instead of 0
When tcp_disconnect() is called, inet_csk_delack_init() sets
icsk->icsk_ack.rcv_mss to 0.
This could potentially cause tcp_recvmsg() => tcp_cleanup_rbuf() =>
__tcp_select_window() call path to have division by 0 issue.
So this patch initializes rcv_mss to TCP_MIN_MSS instead of 0.
Reported-by: Andrey Konovalov <andreyknvl@google.com>
Signed-off-by: Wei Wang <weiwan@google.com>
Signed-off-by: Eric Dumazet <edumazet@google.com>
Signed-off-by: Neal Cardwell <ncardwell@google.com>
Signed-off-by: Yuchung Cheng <ycheng@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Al Viro [Mon, 15 May 2017 01:47:25 +0000 (21:47 -0400)]
osf_wait4(): fix infoleak
failing sys_wait4() won't fill struct rusage...
Cc: stable@vger.kernel.org
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Al Viro [Sun, 21 May 2017 17:08:42 +0000 (13:08 -0400)]
fix unsafe_put_user()
__put_user_size() relies upon its first argument having the same type as what
the second one points to; the only other user makes sure of that and
unsafe_put_user() should do the same.
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
David S. Miller [Sun, 21 May 2017 17:00:02 +0000 (13:00 -0400)]
Merge git://git./pub/scm/linux/kernel/git/pablo/nf
Pablo Neira Ayuso says:
====================
Netfilter/IPVS fixes for net
The following patchset contains Netfilter/IPVS fixes for your net tree,
they are:
1) When using IPVS in direct-routing mode, normal traffic from the LVS
host to a back-end server is sometimes incorrectly NATed on the way
back into the LVS host. Patch to fix this from Julian Anastasov.
2) Calm down clang compilation warning in ctnetlink due to type
mismatch, from Matthias Kaehlcke.
3) Do not re-setup NAT for conntracks that are already confirmed, this
is fixing a problem that was introduced in the previous nf-next batch.
Patch from Liping Zhang.
4) Do not allow conntrack helper removal from userspace cthelper
infrastructure if already in used. This comes with an initial patch
to introduce nf_conntrack_helper_put() that is required by this fix.
From Liping Zhang.
5) Zero the pad when copying data to userspace, otherwise iptables fails
to remove rules. This is a follow up on the patchset that sorts out
the internal match/target structure pointer leak to userspace. Patch
from the same author, Willem de Bruijn. This also comes with a build
failure when CONFIG_COMPAT is not on, coming in the last patch of
this series.
6) SYNPROXY crashes with conntrack entries that are created via
ctnetlink, more specifically via conntrackd state sync. Patch from
Eric Leblond.
7) RCU safe iteration on set element dumping in nf_tables, from
Liping Zhang.
8) Missing sanitization of immediate date for the bitwise and cmp
expressions in nf_tables.
9) Refcounting logic for chain and objects from set elements does not
integrate into the nf_tables 2-phase commit protocol.
10) Missing sanitization of target verdict in ebtables arpreply target,
from Gao Feng.
====================
Signed-off-by: David S. Miller <davem@davemloft.net>
Linus Torvalds [Sun, 21 May 2017 06:39:03 +0000 (23:39 -0700)]
Merge tag 'trace-v4.12-rc1' of git://git./linux/kernel/git/rostedt/linux-trace
Pull tracing fixes from Steven Rostedt:
- Fix a bug caused by not cleaning up the new instance unique triggers
when deleting an instance. It also creates a selftest that triggers
that bug.
- Fix the delayed optimization happening after kprobes boot up self
tests being removed by freeing of init memory.
- Comment kprobes on why the delay optimization is not a problem for
removal of modules, to keep other developers from searching that
riddle.
- Fix another case of rcu not watching in stack trace tracing.
* tag 'trace-v4.12-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/rostedt/linux-trace:
tracing: Make sure RCU is watching before calling a stack trace
kprobes: Document how optimized kprobes are removed from module unload
selftests/ftrace: Add test to remove instance with active event triggers
selftests/ftrace: Fix bashisms
ftrace: Remove #ifdef from code and add clear_ftrace_function_probes() stub
ftrace/instances: Clear function triggers when removing instances
ftrace: Simplify glob handling in unregister_ftrace_function_probe_func()
tracing/kprobes: Enforce kprobes teardown after testing
tracing: Move postpone selftests to core from early_initcall
Linus Torvalds [Sat, 20 May 2017 23:12:30 +0000 (16:12 -0700)]
Merge branch 'for-linus' of git://git.kernel.dk/linux-block
Pull block fixes from Jens Axboe:
"A small collection of fixes that should go into this cycle.
- a pull request from Christoph for NVMe, which ended up being
manually applied to avoid pulling in newer bits in master. Mostly
fibre channel fixes from James, but also a few fixes from Jon and
Vijay
- a pull request from Konrad, with just a single fix for xen-blkback
from Gustavo.
- a fuseblk bdi fix from Jan, fixing a regression in this series with
the dynamic backing devices.
- a blktrace fix from Shaohua, replacing sscanf() with kstrtoull().
- a request leak fix for drbd from Lars, fixing a regression in the
last series with the kref changes. This will go to stable as well"
* 'for-linus' of git://git.kernel.dk/linux-block:
nvmet: release the sq ref on rdma read errors
nvmet-fc: remove target cpu scheduling flag
nvme-fc: stop queues on error detection
nvme-fc: require target or discovery role for fc-nvme targets
nvme-fc: correct port role bits
nvme: unmap CMB and remove sysfs file in reset path
blktrace: fix integer parse
fuseblk: Fix warning in super_setup_bdi_name()
block: xen-blkback: add null check to avoid null pointer dereference
drbd: fix request leak introduced by locking/atomic, kref: Kill kref_sub()
Vijay Immanuel [Mon, 8 May 2017 23:38:35 +0000 (16:38 -0700)]
nvmet: release the sq ref on rdma read errors
On rdma read errors, release the sq ref that was taken
when the req was initialized. This avoids a hang in
nvmet_sq_destroy() when the queue is being freed.
Signed-off-by: Vijay Immanuel <vijayi@attalasystems.com>
Reviewed-by: Sagi Grimberg <sagi@grimberg.me>
Signed-off-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Jens Axboe <axboe@fb.com>
James Smart [Tue, 25 Apr 2017 23:23:09 +0000 (16:23 -0700)]
nvmet-fc: remove target cpu scheduling flag
Remove NVMET_FCTGTFEAT_NEEDS_CMD_CPUSCHED. It's unnecessary.
Signed-off-by: James Smart <james.smart@broadcom.com>
Reviewed-by: Johannes Thumshirn <jthumshirn@suse.de>
Signed-off-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Jens Axboe <axboe@fb.com>
James Smart [Tue, 25 Apr 2017 22:32:01 +0000 (15:32 -0700)]
nvme-fc: stop queues on error detection
Per the recommendation by Sagi on:
http://lists.infradead.org/pipermail/linux-nvme/2017-April/009261.html
Rather than waiting for reset work thread to stop queues and abort the ios,
immediately stop the queues on error detection. Reset thread will restop
the queues (as it's called on other paths), but it does not appear to have
a side effect.
Signed-off-by: James Smart <james.smart@broadcom.com>
Reviewed-by: Johannes Thumshirn <jthumshirn@suse.de>
Signed-off-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Jens Axboe <axboe@fb.com>
James Smart [Fri, 5 May 2017 23:13:15 +0000 (16:13 -0700)]
nvme-fc: require target or discovery role for fc-nvme targets
In order to create an association, the remoteport must be
serving either a target role or a discovery role.
Signed-off-by: James Smart <james.smart@broadcom.com>
Reviewed-by: Johannes Thumshirn <jthumshirn@suse.de>
Signed-off-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Jens Axboe <axboe@fb.com>
James Smart [Fri, 5 May 2017 23:13:02 +0000 (16:13 -0700)]
nvme-fc: correct port role bits
FC Port roles is a bit mask, not individual values.
Correct nvme definitions to unique bits.
Signed-off-by: James Smart <james.smart@broadcom.com>
Reviewed-by: Johannes Thumshirn <jthumshirn@suse.de>
Signed-off-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Jens Axboe <axboe@fb.com>
Jon Derrick [Fri, 5 May 2017 20:52:06 +0000 (14:52 -0600)]
nvme: unmap CMB and remove sysfs file in reset path
CMB doesn't get unmapped until removal while getting remapped on every
reset. Add the unmapping and sysfs file removal to the reset path in
nvme_pci_disable to match the mapping path in nvme_pci_enable.
Fixes:
202021c1a ("nvme : Add sysfs entry for NVMe CMBs when appropriate")
Signed-off-by: Jon Derrick <jonathan.derrick@intel.com>
Acked-by: Keith Busch <keith.busch@intel.com>
Reviewed-By: Stephen Bates <sbates@raithlin.com>
Cc: <stable@vger.kernel.org> # 4.9+
Signed-off-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Jens Axboe <axboe@fb.com>
Linus Torvalds [Sat, 20 May 2017 16:02:27 +0000 (09:02 -0700)]
Merge tag 'staging-4.12-rc2' of git://git./linux/kernel/git/gregkh/staging
Pull staging driver fixes from Greg KH:
"Here are a number of staging driver fixes for 4.12-rc2
Most of them are typec driver fixes found by reviewers and users of
the code. There are also some removals of files no longer needed in
the tree due to the ion driver rewrite in 4.12-rc1, as well as some
wifi driver fixes. And to round it out, a MAINTAINERS file update.
All have been in linux-next with no reported issues"
* tag 'staging-4.12-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/staging: (22 commits)
MAINTAINERS: greybus-dev list is members-only
staging: fsl-dpaa2/eth: add ETHERNET dependency
staging: typec: fusb302: refactor resume retry mechanism
staging: typec: fusb302: reset i2c_busy state in error
staging: rtl8723bs: remove re-positioned call to kfree in os_dep/ioctl_cfg80211.c
staging: rtl8192e: GetTs Fix invalid TID 7 warning.
staging: rtl8192e: rtl92e_get_eeprom_size Fix read size of EPROM_CMD.
staging: rtl8192e: fix 2 byte alignment of register BSSIDR.
staging: rtl8192e: rtl92e_fill_tx_desc fix write to mapped out memory.
staging: vc04_services: Fix bulk cache maintenance
staging: ccree: remove extraneous spin_unlock_bh() in error handler
staging: typec: Fix sparse warnings about incorrect types
staging: typec: fusb302: do not free gpio from managed resource
staging: typec: tcpm: Fix Port Power Role field in PS_RDY messages
staging: typec: tcpm: Respond to Discover Identity commands
staging: typec: tcpm: Set correct flags in PD request messages
staging: typec: tcpm: Drop duplicate PD messages
staging: typec: fusb302: Fix chip->vbus_present init value
staging: typec: fusb302: Fix module autoload
staging: typec: tcpci: declare private structure as static
...
Linus Torvalds [Sat, 20 May 2017 15:52:34 +0000 (08:52 -0700)]
Merge tag 'usb-4.12-rc2' of git://git./linux/kernel/git/gregkh/usb
Pull USB fixes from Greg KH:
"Here are a number of small USB fixes for 4.12-rc2
Most of them come from Johan, in his valiant quest to fix up all
drivers that could be affected by "malicious" USB devices. There's
also some fixes for more "obscure" drivers to handle some of the
vmalloc stack fallout (which for USB drivers, was always the case, but
very few people actually ran those systems...)
Other than that, the normal set of xhci and gadget and musb driver
fixes as well.
All have been in linux-next with no reported issues"
* tag 'usb-4.12-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb: (42 commits)
usb: musb: tusb6010_omap: Do not reset the other direction's packet size
usb: musb: Fix trying to suspend while active for OTG configurations
usb: host: xhci-plat: propagate return value of platform_get_irq()
xhci: Fix command ring stop regression in 4.11
xhci: remove GFP_DMA flag from allocation
USB: xhci: fix lock-inversion problem
usb: host: xhci-ring: don't need to clear interrupt pending for MSI enabled hcd
usb: host: xhci-mem: allocate zeroed Scratchpad Buffer
xhci: apply PME_STUCK_QUIRK and MISSING_CAS quirk for Denverton
usb: xhci: trace URB before giving it back instead of after
USB: serial: qcserial: add more Lenovo EM74xx device IDs
USB: host: xhci: use max-port define
USB: hub: fix SS max number of ports
USB: hub: fix non-SS hub-descriptor handling
USB: hub: fix SS hub-descriptor handling
USB: usbip: fix nonconforming hub descriptor
USB: gadget: dummy_hcd: fix hub-descriptor removable fields
doc-rst: fixed kernel-doc directives in usb/typec.rst
USB: core: of: document reference taken by companion helper
USB: ehci-platform: fix companion-device leak
...
Linus Torvalds [Sat, 20 May 2017 15:44:22 +0000 (08:44 -0700)]
Merge tag 'char-misc-4.12-rc2' of git://git./linux/kernel/git/gregkh/char-misc
Pull char/misc driver fixes from Greg KH:
"Here are five small bugfixes for reported issues with 4.12-rc1 and
earlier kernels. Nothing huge here, just a lp, mem, vpd, and uio
driver fix, along with a Kconfig fixup for one of the misc drivers.
All of these have been in linux-next with no reported issues"
* tag 'char-misc-4.12-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc:
firmware: Google VPD: Fix memory allocation error handling
drivers: char: mem: Check for address space wraparound with mmap()
uio: fix incorrect memory leak cleanup
misc: pci_endpoint_test: select CRC32
char: lp: fix possible integer overflow in lp_setup()
Linus Torvalds [Sat, 20 May 2017 15:35:27 +0000 (08:35 -0700)]
Merge git://www.linux-watchdog.org/linux-watchdog
Pull watchdog fixes from Wim Van Sebroeck:
- orion_wdt compile-test dependencies
- sama5d4_wdt: WDDIS handling and a race confition
- pcwd_usb: fix NULL-deref at probe
- cadence_wdt: fix timeout setting
- wdt_pci: fix build error if SOFTWARE_REBOOT is defined
- iTCO_wdt: all versions count down twice
- zx2967: remove redundant dev_err call in zx2967_wdt_probe()
- bcm281xx: Fix use of uninitialized spinlock
* git://www.linux-watchdog.org/linux-watchdog:
watchdog: bcm281xx: Fix use of uninitialized spinlock.
watchdog: zx2967: remove redundant dev_err call in zx2967_wdt_probe()
iTCO_wdt: all versions count down twice
watchdog: wdt_pci: fix build error if define SOFTWARE_REBOOT
watchdog: cadence_wdt: fix timeout setting
watchdog: pcwd_usb: fix NULL-deref at probe
watchdog: sama5d4: fix race condition
watchdog: sama5d4: fix WDDIS handling
watchdog: orion: fix compile-test dependencies
Linus Torvalds [Sat, 20 May 2017 15:29:30 +0000 (08:29 -0700)]
Merge tag 'drm-fixes-for-v4.12-rc2' of git://people.freedesktop.org/~airlied/linux
Pull drm fixes from Dave Airlie:
"Mostly nouveau and i915, fairly quiet as usual for rc2"
* tag 'drm-fixes-for-v4.12-rc2' of git://people.freedesktop.org/~airlied/linux:
drm/atmel-hlcdc: Fix output initialization
gpu: host1x: select IOMMU_IOVA
drm/nouveau/fifo/gk104-: Silence a locking warning
drm/nouveau/secboot: plug memory leak in ls_ucode_img_load_gr() error path
drm/nouveau: Fix drm poll_helper handling
drm/i915: don't do allocate_va_range again on PIN_UPDATE
drm/i915: Fix rawclk readout for g4x
drm/i915: Fix runtime PM for LPE audio
drm/i915/glk: Fix DSI "*ERROR* ULPS is still active" messages
drm/i915/gvt: avoid unnecessary vgpu switch
drm/i915/gvt: not to restore in-context mmio
drm/etnaviv: don't put fence in case of submit failure
drm/i915/gvt: fix typo: "supporte" -> "support"
drm: hdlcd: Fix the calculation of the scanout start address
Linus Torvalds [Sat, 20 May 2017 00:46:51 +0000 (17:46 -0700)]
Merge tag 'scsi-fixes' of git://git./linux/kernel/git/jejb/scsi
Pull SCSI fixes from James Bottomley:
"This is the first sweep of mostly minor fixes. There's one security
one: the read past the end of a buffer in qedf, and a panic fix for
lpfc SLI-3 adapters, but the rest are a set of include and build
dependency tidy ups and assorted other small fixes and updates"
* tag 'scsi-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi:
scsi: pmcraid: remove redundant check to see if request_size is less than zero
scsi: lpfc: ensure els_wq is being checked before destroying it
scsi: cxlflash: Select IRQ_POLL
scsi: qedf: Avoid reading past end of buffer
scsi: qedf: Cleanup the type of io_log->op
scsi: lpfc: double lock typo in lpfc_ns_rsp()
scsi: qedf: properly update arguments position in function call
scsi: scsi_lib: Add #include <scsi/scsi_transport.h>
scsi: MAINTAINERS: update OSD entries
scsi: Skip deleted devices in __scsi_device_lookup
scsi: lpfc: Fix panic on BFS configuration
scsi: libfc: do not flood console with messages 'libfc: queue full ...'
Linus Torvalds [Sat, 20 May 2017 00:35:34 +0000 (17:35 -0700)]
Merge branch 'libnvdimm-for-next' of git://git./linux/kernel/git/nvdimm/nvdimm
Pull libnvdimm fixes from Dan Williams:
"A couple of compile fixes.
With the removal of the ->direct_access() method from
block_device_operations in favor of a new dax_device + dax_operations
we broke two configurations.
The CONFIG_BLOCK=n case is fixed by compiling out the block+dax
helpers in the dax core. Configurations with FS_DAX=n EXT4=y / XFS=y
and DAX=m fail due to the helpers the builtin filesystem needs being
in a module, so we stub out the helpers in the FS_DAX=n case."
* 'libnvdimm-for-next' of git://git.kernel.org/pub/scm/linux/kernel/git/nvdimm/nvdimm:
dax, xfs, ext4: compile out iomap-dax paths in the FS_DAX=n case
dax: fix false CONFIG_BLOCK dependency
Linus Torvalds [Sat, 20 May 2017 00:33:08 +0000 (17:33 -0700)]
Merge branch 'i2c/for-current' of git://git./linux/kernel/git/wsa/linux
Pull i2c fix from Wolfram Sang:
"A regression fix for I2C that would be great to have in rc2"
* 'i2c/for-current' of git://git.kernel.org/pub/scm/linux/kernel/git/wsa/linux:
i2c: designware: don't infer timings described by ACPI from clock rate
Linus Torvalds [Sat, 20 May 2017 00:27:28 +0000 (17:27 -0700)]
Merge tag 'iommu-fixes-v4.12-rc1' of git://git./linux/kernel/git/joro/iommu
Pull IOMMU fixes from Joerg Roedel:
- another compile-fix as a fallout of the recent header-file cleanup
- add a missing IO/TLB flush to the Intel VT-d kdump code path
- a fix for ARM64 dma code to only access initialized iova_domain
members
* tag 'iommu-fixes-v4.12-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/joro/iommu:
iommu/mediatek: Include linux/dma-mapping.h
iommu/vt-d: Flush the IOTLB to get rid of the initial kdump mappings
iommu/dma: Don't touch invalid iova_domain members
Linus Torvalds [Fri, 19 May 2017 22:13:13 +0000 (15:13 -0700)]
Merge tag 'for-linus' of git://git./virt/kvm/kvm
Pull KVM fixes from Radim Krčmář:
"ARM:
- a fix for a build failure introduced in -rc1 when tracepoints are
enabled on 32-bit ARM.
- disable use of stack pointer protection in the hyp code which can
cause panics.
- a handful of VGIC fixes.
- a fix to the init of the redistributors on GICv3 systems that
prevented boot with kvmtool on GICv3 systems introduced in -rc1.
- a number of race conditions fixed in our MMU handling code.
- a fix for the guest being able to program the debug extensions for
the host on the 32-bit side.
PPC:
- fixes for build failures with PR KVM configurations.
- a fix for a host crash that can occur on POWER9 with radix guests.
x86:
- fixes for nested PML and nested EPT.
- a fix for crashes caused by reserved bits in SSE MXCSR that could
have been set by userspace.
- an optimization of halt polling that fixes high CPU overhead.
- fixes for four reports from Dan Carpenter's static checker.
- a protection around code that shouldn't have been preemptible.
- a fix for port IO emulation"
* tag 'for-linus' of git://git.kernel.org/pub/scm/virt/kvm/kvm: (27 commits)
KVM: x86: prevent uninitialized variable warning in check_svme()
KVM: x86/vPMU: fix undefined shift in intel_pmu_refresh()
KVM: x86: zero base3 of unusable segments
KVM: X86: Fix read out-of-bounds vulnerability in kvm pio emulation
KVM: x86: Fix potential preemption when get the current kvmclock timestamp
KVM: Silence underflow warning in avic_get_physical_id_entry()
KVM: arm/arm64: Hold slots_lock when unregistering kvm io bus devices
KVM: arm/arm64: Fix bug when registering redist iodevs
KVM: x86: lower default for halt_poll_ns
kvm: arm/arm64: Fix use after free of stage2 page table
kvm: arm/arm64: Force reading uncached stage2 PGD
KVM: nVMX: fix EPT permissions as reported in exit qualification
KVM: VMX: Don't enable EPT A/D feature if EPT feature is disabled
KVM: x86: Fix load damaged SSEx MXCSR register
kvm: nVMX: off by one in vmx_write_pml_buffer()
KVM: arm: rename pm_fake handler to trap_raz_wi
KVM: arm: plug potential guest hardware debug leakage
kvm: arm/arm64: Fix race in resetting stage2 PGD
KVM: arm/arm64: vgic-v3: Use PREbits to infer the number of ICH_APxRn_EL2 registers
KVM: arm/arm64: vgic-v3: Do not use Active+Pending state for a HW interrupt
...
Linus Torvalds [Fri, 19 May 2017 22:06:48 +0000 (15:06 -0700)]
Merge tag 'for-linus-4.12b-rc2-tag' of git://git./linux/kernel/git/xen/tip
Pull xen fixes from Juergen Gross:
"Some fixes for the new Xen 9pfs frontend and some minor cleanups"
* tag 'for-linus-4.12b-rc2-tag' of git://git.kernel.org/pub/scm/linux/kernel/git/xen/tip:
xen: make xen_flush_tlb_all() static
xen: cleanup pvh leftovers from pv-only sources
xen/9pfs: p9_trans_xen_init and p9_trans_xen_exit can be static
xen/9pfs: fix return value check in xen_9pfs_front_probe()
Linus Torvalds [Fri, 19 May 2017 22:03:24 +0000 (15:03 -0700)]
Merge tag 'devicetree-fixes-for-4.12' of git://git./linux/kernel/git/robh/linux
Pull DeviceTree fixes from Rob Herring:
- fix missing allocation failure handling in fdt code
- fix dtc compile error on 32-bit hosts
- revert bad sparse changes causing GCC7 warnings
* tag 'devicetree-fixes-for-4.12' of git://git.kernel.org/pub/scm/linux/kernel/git/robh/linux:
of: fdt: add missing allocation-failure check
dtc: check.c fix compile error
Partially Revert "of: fix sparse warnings in fdt, irq, reserved mem, and resolver code"
Linus Torvalds [Fri, 19 May 2017 20:36:56 +0000 (13:36 -0700)]
Merge tag 'armsoc-fixes' of git://git./linux/kernel/git/arm/arm-soc
Pull ARM SoC fixes from Olof Johansson:
"We had a small batch of fixes before -rc1, but here is a larger one.
It contains a backmerge of 4.12-rc1 since some of the downstream
branches we merge had that as base; at the same time we already had
merged contents before -rc1 and rebase wasn't the right solution.
A mix of random smaller fixes and a few things worth pointing out:
- We've started telling people to avoid cross-tree shared branches if
all they're doing is picking up one or two DT-used constants from a
shared include file, and instead to use the numeric values on first
submission. Follow-up moving over to symbolic names are sent in
right after -rc1, i.e. here. It's only a few minor patches of this
type.
- Linus Walleij and others are resurrecting the 'Gemini' platform,
and wanted a cut-down platform-specific defconfig for it. So I
picked that up for them.
- Rob Herring ran 'savedefconfig' on arm64, it's a bit churny but it
helps people to prepare patches since it's a pain when defconfig
and current savedefconfig contents differs too much.
- Devicetree additions for some pinctrl drivers for Armada that were
merged this window. I'd have preferred to see those earlier but
it's not a huge deail.
The biggest change worth pointing out though since it's touching other
parts of the tree: We added prefixes to be used when cross-including
DT contents between arm64 and arm, allowing someone to #include
<arm/foo.dtsi> from arm64, and likewise. As part of that, we needed
arm/foo.dtsi to work on arm as well. The way I suggested this to Heiko
resulted in a recursive symlink.
Instead, I've now moved it out of arch/*/boot/dts/include, into a
shared location under scripts/dtc. While I was at it, I consolidated
so all architectures now behave the same way in this manner.
Rob Herring (DT maintainer) has acked it. I cc:d most other arch
maintainers but nobody seems to care much; it doesn't really affect
them since functionality is unchanged for them by default"
* tag 'armsoc-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc: (29 commits)
arm64: dts: rockchip: fix include reference
firmware: ti_sci: fix strncat length check
ARM: remove duplicate 'const' annotations'
arm64: defconfig: enable options needed for QCom DB410c board
arm64: defconfig: sync with savedefconfig
ARM: configs: add a gemini defconfig
devicetree: Move include prefixes from arch to separate directory
ARM: dts: dra7: Reduce cpu thermal shutdown temperature
memory: omap-gpmc: Fix debug output for access width
ARM: dts: LogicPD Torpedo: Fix camera pin mux
ARM: dts: omap4: enable CEC pin for Pandaboard A4 and ES
ARM: dts: gta04: fix polarity of clocks for mcbsp4
ARM: dts: dra7: Add power hold and power controller properties to palmas
soc: imx: add PM dependency for IMX7_PM_DOMAINS
ARM: dts: imx6sx-sdb: Remove OPP override
ARM: dts: imx53-qsrb: Pulldown PMIC IRQ pin
soc: bcm: brcmstb: Correctly match 7435 SoC
tee: add ARM_SMCCC dependency
ARM: omap2+: make omap4_get_cpu1_ns_pa_addr declaration usable
ARM64: dts: mediatek: configure some fixed mmc parameters
...
Linus Torvalds [Fri, 19 May 2017 20:34:34 +0000 (13:34 -0700)]
Merge tag 'arm64-fixes' of git://git./linux/kernel/git/arm64/linux
Pull arm64 fixes/cleanups from Catalin Marinas:
- Avoid taking a mutex in the secondary CPU bring-up path when
interrupts are disabled
- Ignore perf exclude_hv when the kernel is running in Hyp mode
- Remove redundant instruction in cmpxchg
* tag 'arm64-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux:
arm64/cpufeature: don't use mutex in bringup path
arm64: perf: Ignore exclude_hv when kernel is running in HYP
arm64: Remove redundant mov from LL/SC cmpxchg
Dave Airlie [Fri, 19 May 2017 20:00:49 +0000 (06:00 +1000)]
Merge branch 'for-upstream/hdlcd' of git://linux-arm.org/linux-ld into drm-fixes
single hdlcd fix
* 'for-upstream/hdlcd' of git://linux-arm.org/linux-ld:
drm: hdlcd: Fix the calculation of the scanout start address
Linus Torvalds [Fri, 19 May 2017 18:31:38 +0000 (11:31 -0700)]
Merge tag 'powerpc-4.12-3' of git://git./linux/kernel/git/powerpc/linux
Pull powerpc fixes from Michael Ellerman:
"The headliner is a fix for FP/VMX register corruption when using
transactional memory, and a new selftest to go with it.
Then there's the virt_addr_valid() fix, currently HARDENDED_USERCOPY
is tripping on that causing some machines to crash.
A few other fairly minor fixes for long tail things, and a couple of
fixes for code we just merged.
Thanks to: Breno Leitao, Gautham Shenoy, Michael Neuling, Naveen Rao.
Nicholas Piggin, Paul Mackerras"
* tag 'powerpc-4.12-3' of git://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linux:
powerpc/mm: Fix virt_addr_valid() etc. on 64-bit hash
powerpc/mm: Fix crash in page table dump with huge pages
powerpc/kprobes: Fix handling of instruction emulation on probe re-entry
powerpc/powernv: Set NAPSTATELOST after recovering paca on P9 DD1
selftests/powerpc: Test TM and VMX register state
powerpc/tm: Fix FP and VMX register corruption
powerpc/modules: If mprofile-kernel is enabled add it to vermagic
Radim Krčmář [Thu, 18 May 2017 17:37:32 +0000 (19:37 +0200)]
KVM: x86: prevent uninitialized variable warning in check_svme()
get_msr() of MSR_EFER is currently always going to succeed, but static
checker doesn't see that far.
Don't complicate stuff and just use 0 for the fallback -- it means that
the feature is not present.
Reported-by: Dan Carpenter <dan.carpenter@oracle.com>
Reviewed-by: Paolo Bonzini <pbonzini@redhat.com>
Reviewed-by: David Hildenbrand <david@redhat.com>
Signed-off-by: Radim Krčmář <rkrcmar@redhat.com>
Radim Krčmář [Thu, 18 May 2017 17:37:31 +0000 (19:37 +0200)]
KVM: x86/vPMU: fix undefined shift in intel_pmu_refresh()
Static analysis noticed that pmu->nr_arch_gp_counters can be 32
(INTEL_PMC_MAX_GENERIC) and therefore cannot be used to shift 'int'.
I didn't add BUILD_BUG_ON for it as we have a better checker.
Reported-by: Dan Carpenter <dan.carpenter@oracle.com>
Fixes:
25462f7f5295 ("KVM: x86/vPMU: Define kvm_pmu_ops to support vPMU function dispatch")
Reviewed-by: Paolo Bonzini <pbonzini@redhat.com>
Reviewed-by: David Hildenbrand <david@redhat.com>
Signed-off-by: Radim Krčmář <rkrcmar@redhat.com>
Radim Krčmář [Thu, 18 May 2017 17:37:30 +0000 (19:37 +0200)]
KVM: x86: zero base3 of unusable segments
Static checker noticed that base3 could be used uninitialized if the
segment was not present (useable). Random stack values probably would
not pass VMCS entry checks.
Reported-by: Dan Carpenter <dan.carpenter@oracle.com>
Fixes:
1aa366163b8b ("KVM: x86 emulator: consolidate segment accessors")
Reviewed-by: Paolo Bonzini <pbonzini@redhat.com>
Reviewed-by: David Hildenbrand <david@redhat.com>
Signed-off-by: Radim Krčmář <rkrcmar@redhat.com>
Wanpeng Li [Fri, 19 May 2017 09:46:56 +0000 (02:46 -0700)]
KVM: X86: Fix read out-of-bounds vulnerability in kvm pio emulation
Huawei folks reported a read out-of-bounds vulnerability in kvm pio emulation.
- "inb" instruction to access PIT Mod/Command register (ioport 0x43, write only,
a read should be ignored) in guest can get a random number.
- "rep insb" instruction to access PIT register port 0x43 can control memcpy()
in emulator_pio_in_emulated() to copy max 0x400 bytes but only read 1 bytes,
which will disclose the unimportant kernel memory in host but no crash.
The similar test program below can reproduce the read out-of-bounds vulnerability:
void hexdump(void *mem, unsigned int len)
{
unsigned int i, j;
for(i = 0; i < len + ((len % HEXDUMP_COLS) ? (HEXDUMP_COLS - len % HEXDUMP_COLS) : 0); i++)
{
/* print offset */
if(i % HEXDUMP_COLS == 0)
{
printf("0x%06x: ", i);
}
/* print hex data */
if(i < len)
{
printf("%02x ", 0xFF & ((char*)mem)[i]);
}
else /* end of block, just aligning for ASCII dump */
{
printf(" ");
}
/* print ASCII dump */
if(i % HEXDUMP_COLS == (HEXDUMP_COLS - 1))
{
for(j = i - (HEXDUMP_COLS - 1); j <= i; j++)
{
if(j >= len) /* end of block, not really printing */
{
putchar(' ');
}
else if(isprint(((char*)mem)[j])) /* printable char */
{
putchar(0xFF & ((char*)mem)[j]);
}
else /* other char */
{
putchar('.');
}
}
putchar('\n');
}
}
}
int main(void)
{
int i;
if (iopl(3))
{
err(1, "set iopl unsuccessfully\n");
return -1;
}
static char buf[0x40];
/* test ioport 0x40,0x41,0x42,0x43,0x44,0x45 */
memset(buf, 0xab, sizeof(buf));
asm volatile("push %rdi;");
asm volatile("mov %0, %%rdi;"::"q"(buf));
asm volatile ("mov $0x40, %rdx;");
asm volatile ("in %dx,%al;");
asm volatile ("stosb;");
asm volatile ("mov $0x41, %rdx;");
asm volatile ("in %dx,%al;");
asm volatile ("stosb;");
asm volatile ("mov $0x42, %rdx;");
asm volatile ("in %dx,%al;");
asm volatile ("stosb;");
asm volatile ("mov $0x43, %rdx;");
asm volatile ("in %dx,%al;");
asm volatile ("stosb;");
asm volatile ("mov $0x44, %rdx;");
asm volatile ("in %dx,%al;");
asm volatile ("stosb;");
asm volatile ("mov $0x45, %rdx;");
asm volatile ("in %dx,%al;");
asm volatile ("stosb;");
asm volatile ("pop %rdi;");
hexdump(buf, 0x40);
printf("\n");
/* ins port 0x40 */
memset(buf, 0xab, sizeof(buf));
asm volatile("push %rdi;");
asm volatile("mov %0, %%rdi;"::"q"(buf));
asm volatile ("mov $0x20, %rcx;");
asm volatile ("mov $0x40, %rdx;");
asm volatile ("rep insb;");
asm volatile ("pop %rdi;");
hexdump(buf, 0x40);
printf("\n");
/* ins port 0x43 */
memset(buf, 0xab, sizeof(buf));
asm volatile("push %rdi;");
asm volatile("mov %0, %%rdi;"::"q"(buf));
asm volatile ("mov $0x20, %rcx;");
asm volatile ("mov $0x43, %rdx;");
asm volatile ("rep insb;");
asm volatile ("pop %rdi;");
hexdump(buf, 0x40);
printf("\n");
return 0;
}
The vcpu->arch.pio_data buffer is used by both in/out instrutions emulation
w/o clear after using which results in some random datas are left over in
the buffer. Guest reads port 0x43 will be ignored since it is write only,
however, the function kernel_pio() can't distigush this ignore from successfully
reads data from device's ioport. There is no new data fill the buffer from
port 0x43, however, emulator_pio_in_emulated() will copy the stale data in
the buffer to the guest unconditionally. This patch fixes it by clearing the
buffer before in instruction emulation to avoid to grant guest the stale data
in the buffer.
In addition, string I/O is not supported for in kernel device. So there is no
iteration to read ioport %RCX times for string I/O. The function kernel_pio()
just reads one round, and then copy the io size * %RCX to the guest unconditionally,
actually it copies the one round ioport data w/ other random datas which are left
over in the vcpu->arch.pio_data buffer to the guest. This patch fixes it by
introducing the string I/O support for in kernel device in order to grant the right
ioport datas to the guest.
Before the patch:
0x000000: fe 38 93 93 ff ff ab ab .8......
0x000008: ab ab ab ab ab ab ab ab ........
0x000010: ab ab ab ab ab ab ab ab ........
0x000018: ab ab ab ab ab ab ab ab ........
0x000020: ab ab ab ab ab ab ab ab ........
0x000028: ab ab ab ab ab ab ab ab ........
0x000030: ab ab ab ab ab ab ab ab ........
0x000038: ab ab ab ab ab ab ab ab ........
0x000000: f6 00 00 00 00 00 00 00 ........
0x000008: 00 00 00 00 00 00 00 00 ........
0x000010: 00 00 00 00 4d 51 30 30 ....MQ00
0x000018: 30 30 20 33 20 20 20 20 00 3
0x000020: ab ab ab ab ab ab ab ab ........
0x000028: ab ab ab ab ab ab ab ab ........
0x000030: ab ab ab ab ab ab ab ab ........
0x000038: ab ab ab ab ab ab ab ab ........
0x000000: f6 00 00 00 00 00 00 00 ........
0x000008: 00 00 00 00 00 00 00 00 ........
0x000010: 00 00 00 00 4d 51 30 30 ....MQ00
0x000018: 30 30 20 33 20 20 20 20 00 3
0x000020: ab ab ab ab ab ab ab ab ........
0x000028: ab ab ab ab ab ab ab ab ........
0x000030: ab ab ab ab ab ab ab ab ........
0x000038: ab ab ab ab ab ab ab ab ........
After the patch:
0x000000: 1e 02 f8 00 ff ff ab ab ........
0x000008: ab ab ab ab ab ab ab ab ........
0x000010: ab ab ab ab ab ab ab ab ........
0x000018: ab ab ab ab ab ab ab ab ........
0x000020: ab ab ab ab ab ab ab ab ........
0x000028: ab ab ab ab ab ab ab ab ........
0x000030: ab ab ab ab ab ab ab ab ........
0x000038: ab ab ab ab ab ab ab ab ........
0x000000: d2 e2 d2 df d2 db d2 d7 ........
0x000008: d2 d3 d2 cf d2 cb d2 c7 ........
0x000010: d2 c4 d2 c0 d2 bc d2 b8 ........
0x000018: d2 b4 d2 b0 d2 ac d2 a8 ........
0x000020: ab ab ab ab ab ab ab ab ........
0x000028: ab ab ab ab ab ab ab ab ........
0x000030: ab ab ab ab ab ab ab ab ........
0x000038: ab ab ab ab ab ab ab ab ........
0x000000: 00 00 00 00 00 00 00 00 ........
0x000008: 00 00 00 00 00 00 00 00 ........
0x000010: 00 00 00 00 00 00 00 00 ........
0x000018: 00 00 00 00 00 00 00 00 ........
0x000020: ab ab ab ab ab ab ab ab ........
0x000028: ab ab ab ab ab ab ab ab ........
0x000030: ab ab ab ab ab ab ab ab ........
0x000038: ab ab ab ab ab ab ab ab ........
Reported-by: Moguofang <moguofang@huawei.com>
Cc: Paolo Bonzini <pbonzini@redhat.com>
Cc: Radim Krčmář <rkrcmar@redhat.com>
Cc: Moguofang <moguofang@huawei.com>
Signed-off-by: Wanpeng Li <wanpeng.li@hotmail.com>
Cc: stable@vger.kernel.org
Signed-off-by: Radim Krčmář <rkrcmar@redhat.com>
Wanpeng Li [Fri, 12 May 2017 01:12:05 +0000 (18:12 -0700)]
KVM: x86: Fix potential preemption when get the current kvmclock timestamp
BUG: using __this_cpu_read() in preemptible [
00000000] code: qemu-system-x86/2809
caller is __this_cpu_preempt_check+0x13/0x20
CPU: 2 PID: 2809 Comm: qemu-system-x86 Not tainted 4.11.0+ #13
Call Trace:
dump_stack+0x99/0xce
check_preemption_disabled+0xf5/0x100
__this_cpu_preempt_check+0x13/0x20
get_kvmclock_ns+0x6f/0x110 [kvm]
get_time_ref_counter+0x5d/0x80 [kvm]
kvm_hv_process_stimers+0x2a1/0x8a0 [kvm]
? kvm_hv_process_stimers+0x2a1/0x8a0 [kvm]
? kvm_arch_vcpu_ioctl_run+0xac9/0x1ce0 [kvm]
kvm_arch_vcpu_ioctl_run+0x5bf/0x1ce0 [kvm]
kvm_vcpu_ioctl+0x384/0x7b0 [kvm]
? kvm_vcpu_ioctl+0x384/0x7b0 [kvm]
? __fget+0xf3/0x210
do_vfs_ioctl+0xa4/0x700
? __fget+0x114/0x210
SyS_ioctl+0x79/0x90
entry_SYSCALL_64_fastpath+0x23/0xc2
RIP: 0033:0x7f9d164ed357
? __this_cpu_preempt_check+0x13/0x20
This can be reproduced by run kvm-unit-tests/hyperv_stimer.flat w/
CONFIG_PREEMPT and CONFIG_DEBUG_PREEMPT enabled.
Safe access to per-CPU data requires a couple of constraints, though: the
thread working with the data cannot be preempted and it cannot be migrated
while it manipulates per-CPU variables. If the thread is preempted, the
thread that replaces it could try to work with the same variables; migration
to another CPU could also cause confusion. However there is no preemption
disable when reads host per-CPU tsc rate to calculate the current kvmclock
timestamp.
This patch fixes it by utilizing get_cpu/put_cpu pair to guarantee both
__this_cpu_read() and rdtsc() are not preempted.
Cc: Paolo Bonzini <pbonzini@redhat.com>
Cc: Radim Krčmář <rkrcmar@redhat.com>
Signed-off-by: Wanpeng Li <wanpeng.li@hotmail.com>
Reviewed-by: Paolo Bonzini <pbonzini@redhat.com>
Cc: stable@vger.kernel.org
Signed-off-by: Radim Krčmář <rkrcmar@redhat.com>
Shaohua Li [Fri, 19 May 2017 15:04:59 +0000 (08:04 -0700)]
blktrace: fix integer parse
sscanf is a very poor way to parse integer. For example, I input
"discard" for act_mask, it gets 0xd and completely messes up. Using
correct API to do integer parse.
This patch also makes attributes accept any base of integer.
Signed-off-by: Shaohua Li <shli@fb.com>
Signed-off-by: Jens Axboe <axboe@fb.com>
Ard Biesheuvel [Fri, 19 May 2017 08:56:40 +0000 (09:56 +0100)]
i2c: designware: don't infer timings described by ACPI from clock rate
Commit
bd698d24b1b57 ("i2c: designware: Get selected speed mode
sda-hold-time via ACPI") updated the logic that reads the timing
parameters for various I2C bus rates from the DSDT, to only read
the timing parameters for the currently selected mode.
This causes a WARN_ON() splat on platforms that legally omit the clock
frequency from the ACPI description, because in the new situation, the
core I2C designware driver still accesses the fields in the driver
struct that we no longer populate, and proceeds to calculate them from
the clock frequency. Since the clock frequency is unspecified, the
driver complains loudly using a WARN_ON().
So revert back to the old situation, where the struct fields for all
timings are populated, but retain the new logic which chooses the SDA
hold time from the timing mode that is currently in use.
Fixes:
bd698d24b1b57 ("i2c: designware: Get selected speed mode ...")
Signed-off-by: Ard Biesheuvel <ard.biesheuvel@linaro.org>
Reported-by: Lorenzo Pieralisi <lorenzo.pieralisi@arm.com>
Acked-by: Jarkko Nikula <jarkko.nikula@linux.intel.com>
Signed-off-by: Wolfram Sang <wsa@the-dreams.de>
Arnd Bergmann [Fri, 19 May 2017 12:12:00 +0000 (14:12 +0200)]
arm64: dts: rockchip: fix include reference
The way we handle include paths for DT has changed a bit, which
broke a file that had an unconventional way to reference a common
header file:
arch/arm64/boot/dts/rockchip/rk3399-gru-kevin.dts:47:10: fatal error: include/dt-bindings/input/linux-event-codes.h: No such file or directory
This removes the leading "include/" from the path name, which fixes it.
Fixes:
d5d332d3f7e8 ("devicetree: Move include prefixes from arch to separate directory")
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Antony Antony [Fri, 19 May 2017 10:47:00 +0000 (12:47 +0200)]
xfrm: fix state migration copy replay sequence numbers
During xfrm migration copy replay and preplay sequence numbers
from the previous state.
Here is a tcpdump output showing the problem.
10.0.10.46 is running vanilla kernel, is the IKE/IPsec responder.
After the migration it sent wrong sequence number, reset to 1.
The migration is from 10.0.0.52 to 10.0.0.53.
IP 10.0.0.52.4500 > 10.0.10.46.4500: UDP-encap: ESP(spi=0x43ef462d,seq=0x7cf), length 136
IP 10.0.10.46.4500 > 10.0.0.52.4500: UDP-encap: ESP(spi=0xca1c282d,seq=0x7cf), length 136
IP 10.0.0.52.4500 > 10.0.10.46.4500: UDP-encap: ESP(spi=0x43ef462d,seq=0x7d0), length 136
IP 10.0.10.46.4500 > 10.0.0.52.4500: UDP-encap: ESP(spi=0xca1c282d,seq=0x7d0), length 136
IP 10.0.0.53.4500 > 10.0.10.46.4500: NONESP-encap: isakmp: child_sa inf2[I]
IP 10.0.10.46.4500 > 10.0.0.53.4500: NONESP-encap: isakmp: child_sa inf2[R]
IP 10.0.0.53.4500 > 10.0.10.46.4500: NONESP-encap: isakmp: child_sa inf2[I]
IP 10.0.10.46.4500 > 10.0.0.53.4500: NONESP-encap: isakmp: child_sa inf2[R]
IP 10.0.0.53.4500 > 10.0.10.46.4500: UDP-encap: ESP(spi=0x43ef462d,seq=0x7d1), length 136
NOTE: next sequence is wrong 0x1
IP 10.0.10.46.4500 > 10.0.0.53.4500: UDP-encap: ESP(spi=0xca1c282d,seq=0x1), length 136
IP 10.0.0.53.4500 > 10.0.10.46.4500: UDP-encap: ESP(spi=0x43ef462d,seq=0x7d2), length 136
IP 10.0.10.46.4500 > 10.0.0.53.4500: UDP-encap: ESP(spi=0xca1c282d,seq=0x2), length 136
Signed-off-by: Antony Antony <antony@phenome.org>
Reviewed-by: Richard Guy Briggs <rgb@tricolour.ca>
Signed-off-by: Steffen Klassert <steffen.klassert@secunet.com>
Eric Anholt [Fri, 28 Apr 2017 01:02:32 +0000 (18:02 -0700)]
watchdog: bcm281xx: Fix use of uninitialized spinlock.
The bcm_kona_wdt_set_resolution_reg() call takes the spinlock, so
initialize it earlier. Fixes a warning at boot with lock debugging
enabled.
Fixes:
6adb730dc208 ("watchdog: bcm281xx: Watchdog Driver")
Signed-off-by: Eric Anholt <eric@anholt.net>
Reviewed-by: Florian Fainelli <f.fainelli@gmail.com>
Reviewed-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Wim Van Sebroeck <wim@iguana.be>
Wei Yongjun [Tue, 25 Apr 2017 16:17:33 +0000 (16:17 +0000)]
watchdog: zx2967: remove redundant dev_err call in zx2967_wdt_probe()
There is a error message within devm_ioremap_resource
already, so remove the dev_err call to avoid redundant
error message.
Signed-off-by: Wei Yongjun <weiyongjun1@huawei.com>
Reviewed-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Wim Van Sebroeck <wim@iguana.be>
Paolo Bonzini [Wed, 5 Apr 2017 11:41:15 +0000 (13:41 +0200)]
iTCO_wdt: all versions count down twice
The ICH9 is listed as having TCO v2, and indeed the behavior in the
datasheet corresponds to v2 (for example the NO_REBOOT flag is
accessible via the 16KiB-aligned Root Complex Base Address).
However, the TCO counts twice just like in v1; the documentation
of the SECOND_TO_STS bit says: "ICH9 sets this bit to 1 to indicate
that the TIMEOUT bit had been (or is currently) set and a second
timeout occurred before the TCO_RLD register was written. If this
bit is set and the NO_REBOOT config bit is 0, then the ICH9 will
reboot the system after the second timeout. The same can be found
in the BayTrail (Atom E3800) datasheet, and even HOWTOs around
the Internet say that it will reboot after _twice_ the specified
heartbeat.
I did not find the Apollo Lake datasheet, but because v4/v5 has
a SECOND_TO_STS bit just like the previous version I'm enabling
this for Apollo Lake as well.
Cc: linux-watchdog@vger.kernel.org
Reviewed-by: Andy Shevchenko <andy.shevchenko@gmail.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Reviewed-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Wim Van Sebroeck <wim@iguana.be>
Arnd Bergmann [Wed, 11 Jan 2017 11:53:05 +0000 (12:53 +0100)]
firmware: ti_sci: fix strncat length check
gcc-7 notices that the length we pass to strncat is wrong:
drivers/firmware/ti_sci.c: In function 'ti_sci_probe':
drivers/firmware/ti_sci.c:204:32: error: specified bound 50 equals the size of the destination [-Werror=stringop-overflow=]
Instead of the total length, we must pass the length of the
remaining space here.
Fixes:
aa276781a64a ("firmware: Add basic support for TI System Control Interface (TI-SCI) protocol")
Cc: stable@vger.kernel.org
Acked-by: Nishanth Menon <nm@ti.com>
Acked-by: Santosh Shilimkar <ssantosh@kernel.org>
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Arnd Bergmann [Thu, 11 May 2017 11:50:16 +0000 (13:50 +0200)]
ARM: remove duplicate 'const' annotations'
gcc-7 warns about some declarations that are more 'const' than necessary:
arch/arm/mach-at91/pm.c:338:34: error: duplicate 'const' declaration specifier [-Werror=duplicate-decl-specifier]
static const struct of_device_id const ramc_ids[] __initconst = {
arch/arm/mach-bcm/bcm_kona_smc.c:36:34: error: duplicate 'const' declaration specifier [-Werror=duplicate-decl-specifier]
static const struct of_device_id const bcm_kona_smc_ids[] __initconst = {
arch/arm/mach-spear/time.c:207:34: error: duplicate 'const' declaration specifier [-Werror=duplicate-decl-specifier]
static const struct of_device_id const timer_of_match[] __initconst = {
arch/arm/mach-omap2/prm_common.c:714:34: error: duplicate 'const' declaration specifier [-Werror=duplicate-decl-specifier]
static const struct of_device_id const omap_prcm_dt_match_table[] __initconst = {
arch/arm/mach-omap2/vc.c:562:35: error: duplicate 'const' declaration specifier [-Werror=duplicate-decl-specifier]
static const struct i2c_init_data const omap4_i2c_timing_data[] __initconst = {
The ones in arch/arm were apparently all introduced accidentally by one
commit that correctly marked a lot of variables as __initconst.
Fixes:
19c233b79d1a ("ARM: appropriate __init annotation for const data")
Acked-by: Alexandre Belloni <alexandre.belloni@free-electrons.com>
Acked-by: Tony Lindgren <tony@atomide.com>
Acked-by: Nicolas Pitre <nico@linaro.org>
Acked-by: Florian Fainelli <f.fainelli@gmail.com>
Acked-by: Viresh Kumar <viresh.kumar@linaro.org>
Acked-by: Krzysztof Hałasa <khalasa@piap.pl>
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Greg Kroah-Hartman [Fri, 19 May 2017 08:10:07 +0000 (10:10 +0200)]
Merge tag 'usb-serial-4.12-rc2' of git://git./linux/kernel/git/johan/usb-serial into usb-linus
Johan writes:
USB-serial fixes for v4.12-rc2
Here's a fix for a long-standing issue in the ftdi_sio driver that
prevented unprivileged users from updating the low-latency flag,
something which became apparent after a recent change that restored the
older setting of not using low-latency mode by default.
A run of sparse revealed a couple of endianness issues that are now
fixed, and addressed is also a user-triggerable division-by-zero in
io_ti when debugging is enabled.
Finally there are some new device ids, including a simplification of how
we deal with a couple of older Olimex JTAG adapters.
All have been in linux-next with no reported issues.
Signed-off-by: Johan Hovold <johan@kernel.org>
Olof Johansson [Fri, 19 May 2017 07:02:16 +0000 (00:02 -0700)]
Merge tag 'omap-for-v4.12/fixes-v2-signed' of git://git./linux/kernel/git/tmlind/linux-omap into fixes
Fixes for omaps for v4.12-rc cycle most consisting of few minor dts fixes
for various devices. Also included is a memory controller (GPMC) debug output
fix as without that the shown bootloader configured GPMC bus width will
be wrong and won't work for kernel timings:
- Add dra7 powerhold configuration to be able to shut down pmic correctly
- Fix polarity for gta04 mcbsp4 clocks for modem
- Fix Pandaboard CEC pin pull making it usable
- Fix LogicPD Torpedo camera pin mux
- Fix GPMC debug bus width
- Reduce cpu thermal shutdown temperature
* tag 'omap-for-v4.12/fixes-v2-signed' of git://git.kernel.org/pub/scm/linux/kernel/git/tmlind/linux-omap:
ARM: dts: dra7: Reduce cpu thermal shutdown temperature
memory: omap-gpmc: Fix debug output for access width
ARM: dts: LogicPD Torpedo: Fix camera pin mux
ARM: dts: omap4: enable CEC pin for Pandaboard A4 and ES
ARM: dts: gta04: fix polarity of clocks for mcbsp4
ARM: dts: dra7: Add power hold and power controller properties to palmas
Signed-off-by: Olof Johansson <olof@lixom.net>
Olof Johansson [Fri, 19 May 2017 07:02:04 +0000 (00:02 -0700)]
Merge tag 'imx-fixes-4.12' of git://git./linux/kernel/git/shawnguo/linux into fixes
i.MX fixes for 4.12:
- A fix on GPCv2 power domain driver Kconfig which causes a build
failure when CONFIG_PM is not set.
- Pull down PMIC IRQ pin for imx53-qsrb board to prevent spurious
PMIC interrupts from happening.
- Remove board level OPP override for imx6sx-sdb to fix a boot crash
seen on Rev.C boards.
* tag 'imx-fixes-4.12' of git://git.kernel.org/pub/scm/linux/kernel/git/shawnguo/linux:
soc: imx: add PM dependency for IMX7_PM_DOMAINS
ARM: dts: imx6sx-sdb: Remove OPP override
ARM: dts: imx53-qsrb: Pulldown PMIC IRQ pin
Signed-off-by: Olof Johansson <olof@lixom.net>