Граф коммитов

796754 Коммитов

Автор SHA1 Сообщение Дата
Florian Westphal e4844c9c62 netfilter: nft_compat: ebtables 'nat' table is normal chain type
Unlike ip(6)tables, the ebtables nat table has no special properties.
This bug causes 'ebtables -A' to fail when using a target such as
'snat' (ebt_snat target sets ".table = "nat"').  Targets that have
no table restrictions work fine.

Signed-off-by: Florian Westphal <fw@strlen.de>
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
2018-11-03 13:28:03 +01:00
Pablo Neira Ayuso 8866df9264 netfilter: nfnetlink_cttimeout: pass default timeout policy to obj_to_nlattr
Otherwise, we hit a NULL pointer deference since handlers always assume
default timeout policy is passed.

  netlink: 24 bytes leftover after parsing attributes in process `syz-executor2'.
  kasan: CONFIG_KASAN_INLINE enabled
  kasan: GPF could be caused by NULL-ptr deref or user memory access
  general protection fault: 0000 [#1] PREEMPT SMP KASAN
  CPU: 0 PID: 9575 Comm: syz-executor1 Not tainted 4.19.0+ #312
  Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
  RIP: 0010:icmp_timeout_obj_to_nlattr+0x77/0x170 net/netfilter/nf_conntrack_proto_icmp.c:297

Fixes: c779e84960 ("netfilter: conntrack: remove get_timeout() indirection")
Reported-by: Eric Dumazet <eric.dumazet@gmail.com>
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
2018-11-03 13:28:03 +01:00
Pablo Neira Ayuso a95a7774d5 netfilter: conntrack: add nf_{tcp,udp,sctp,icmp,dccp,icmpv6,generic}_pernet()
Expose these functions to access conntrack protocol tracker netns area,
nfnetlink_cttimeout needs this.

Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
2018-11-03 13:28:02 +01:00
Jozsef Kadlecsik 8a02bdd50b netfilter: ipset: Fix calling ip_set() macro at dumping
The ip_set() macro is called when either ip_set_ref_lock held only
or no lock/nfnl mutex is held at dumping. Take this into account
properly. Also, use Pablo's suggestion to use rcu_dereference_raw(),
the ref_netlink protects the set.

Signed-off-by: Jozsef Kadlecsik <kadlec@blackhole.kfki.hu>
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
2018-11-03 13:28:01 +01:00
Taehee Yoo 54451f60c8 netfilter: xt_IDLETIMER: add sysfs filename checking routine
When IDLETIMER rule is added, sysfs file is created under
/sys/class/xt_idletimer/timers/
But some label name shouldn't be used.
".", "..", "power", "uevent", "subsystem", etc...
So that sysfs filename checking routine is needed.

test commands:
   %iptables -I INPUT -j IDLETIMER --timeout 1 --label "power"

splat looks like:
[95765.423132] sysfs: cannot create duplicate filename '/devices/virtual/xt_idletimer/timers/power'
[95765.433418] CPU: 0 PID: 8446 Comm: iptables Not tainted 4.19.0-rc6+ #20
[95765.449755] Call Trace:
[95765.449755]  dump_stack+0xc9/0x16b
[95765.449755]  ? show_regs_print_info+0x5/0x5
[95765.449755]  sysfs_warn_dup+0x74/0x90
[95765.449755]  sysfs_add_file_mode_ns+0x352/0x500
[95765.449755]  sysfs_create_file_ns+0x179/0x270
[95765.449755]  ? sysfs_add_file_mode_ns+0x500/0x500
[95765.449755]  ? idletimer_tg_checkentry+0x3e5/0xb1b [xt_IDLETIMER]
[95765.449755]  ? rcu_read_lock_sched_held+0x114/0x130
[95765.449755]  ? __kmalloc_track_caller+0x211/0x2b0
[95765.449755]  ? memcpy+0x34/0x50
[95765.449755]  idletimer_tg_checkentry+0x4e2/0xb1b [xt_IDLETIMER]
[ ... ]

Fixes: 0902b469bd ("netfilter: xtables: idletimer target implementation")
Signed-off-by: Taehee Yoo <ap420073@gmail.com>
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
2018-11-03 13:28:01 +01:00
Jozsef Kadlecsik 17b8b74c0f netfilter: ipset: Correct rcu_dereference() call in ip_set_put_comment()
The function is called when rcu_read_lock() is held and not
when rcu_read_lock_bh() is held.

Signed-off-by: Jozsef Kadlecsik <kadlec@blackhole.kfki.hu>
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
2018-11-03 13:27:50 +01:00
David S. Miller 265ad0632f Merge branch 'net-timeout-fixes-for-GENET-and-SYSTEMPORT'
Florian Fainelli says:

====================
net: timeout fixes for GENET and SYSTEMPORT

This patch series fixes occasional transmit timeout around the time
the system goes into suspend. GENET and SYSTEMPORT have nearly the same
logic in that regard and were both affected in the same way.

Please queue up for stable, thanks!
====================

Signed-off-by: David S. Miller <davem@davemloft.net>
2018-11-03 00:03:40 -07:00
Florian Fainelli 7cb6a2a2c7 net: systemport: Protect stop from timeout
A timing hazard exists when the network interface is stopped that
allows a watchdog timeout to be processed by a separate core in
parallel. This creates the potential for the timeout handler to
wake the queues while the driver is shutting down, or access
registers after their clocks have been removed.

The more common case is that the watchdog timeout will produce a
warning message which doesn't lead to a crash. The chances of this
are greatly increased by the fact that bcm_sysport_netif_stop stops
the transmit queues which can easily precipitate a watchdog time-
out because of stale trans_start data in the queues.

This commit corrects the behavior by ensuring that the watchdog
timeout is disabled before enterring bcm_sysport_netif_stop. There
are currently only two users of the bcm_sysport_netif_stop function:
close and suspend.

The close case already handles the issue by exiting the RUNNING
state before invoking the driver close service.

The suspend case now performs the netif_device_detach to exit the
PRESENT state before the call to bcm_sysport_netif_stop rather than
after it.

These behaviors prevent any future scheduling of the driver timeout
service during the window. The netif_tx_stop_all_queues function
in bcm_sysport_netif_stop is replaced with netif_tx_disable to ensure
synchronization with any transmit or timeout threads that may
already be executing on other cores.

For symmetry, the netif_device_attach call upon resume is moved to
after the call to bcm_sysport_netif_start. Since it wakes the transmit
queues it is not necessary to invoke netif_tx_start_all_queues from
bcm_sysport_netif_start so it is moved into the driver open service.

Fixes: 40755a0fce ("net: systemport: add suspend and resume support")
Fixes: 80105befdb ("net: systemport: add Broadcom SYSTEMPORT Ethernet MAC driver")
Signed-off-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2018-11-03 00:03:40 -07:00
Doug Berger 09e805d257 net: bcmgenet: protect stop from timeout
A timing hazard exists when the network interface is stopped that
allows a watchdog timeout to be processed by a separate core in
parallel. This creates the potential for the timeout handler to
wake the queues while the driver is shutting down, or access
registers after their clocks have been removed.

The more common case is that the watchdog timeout will produce a
warning message which doesn't lead to a crash. The chances of this
are greatly increased by the fact that bcmgenet_netif_stop stops
the transmit queues which can easily precipitate a watchdog time-
out because of stale trans_start data in the queues.

This commit corrects the behavior by ensuring that the watchdog
timeout is disabled before enterring bcmgenet_netif_stop. There
are currently only two users of the bcmgenet_netif_stop function:
close and suspend.

The close case already handles the issue by exiting the RUNNING
state before invoking the driver close service.

The suspend case now performs the netif_device_detach to exit the
PRESENT state before the call to bcmgenet_netif_stop rather than
after it.

These behaviors prevent any future scheduling of the driver timeout
service during the window. The netif_tx_stop_all_queues function
in bcmgenet_netif_stop is replaced with netif_tx_disable to ensure
synchronization with any transmit or timeout threads that may
already be executing on other cores.

For symmetry, the netif_device_attach call upon resume is moved to
after the call to bcmgenet_netif_start. Since it wakes the transmit
queues it is not necessary to invoke netif_tx_start_all_queues from
bcmgenet_netif_start so it is moved into the driver open service.

Fixes: 1c1008c793 ("net: bcmgenet: add main driver file")
Signed-off-by: Doug Berger <opendmb@gmail.com>
Signed-off-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2018-11-03 00:03:39 -07:00
David Howells c7e86acfce rxrpc: Fix lockup due to no error backoff after ack transmit error
If the network becomes (partially) unavailable, say by disabling IPv6, the
background ACK transmission routine can get itself into a tizzy by
proposing immediate ACK retransmission.  Since we're in the call event
processor, that happens immediately without returning to the workqueue
manager.

The condition should clear after a while when either the network comes back
or the call times out.

Fix this by:

 (1) When re-proposing an ACK on failed Tx, don't schedule it immediately.
     This will allow a certain amount of time to elapse before we try
     again.

 (2) Enforce a return to the workqueue manager after a certain number of
     iterations of the call processing loop.

 (3) Add a backoff delay that increases the delay on deferred ACKs by a
     jiffy per failed transmission to a limit of HZ.  The backoff delay is
     cleared on a successful return from kernel_sendmsg().

 (4) Cancel calls immediately if the opening sendmsg fails.  The layer
     above can arrange retransmission or rotate to another server.

Fixes: 248f219cb8 ("rxrpc: Rewrite the data and ack handling code")
Signed-off-by: David Howells <dhowells@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2018-11-02 23:59:26 -07:00
Tristram Ha 284fb78ed7 net: dsa: microchip: initialize mutex before use
Initialize mutex before use.  Avoid kernel complaint when
CONFIG_DEBUG_LOCK_ALLOC is enabled.

Fixes: b987e98e50 ("dsa: add DSA switch driver for Microchip KSZ9477")
Signed-off-by: Tristram Ha <Tristram.Ha@microchip.com>
Reviewed-by: Pavel Machek <pavel@ucw.cz>
Reviewed-by: Andrew Lunn <andrew@lunn.ch>
Reviewed-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2018-11-02 23:56:34 -07:00
Jeff Barnhill 2384d02520 net/ipv6: Add anycast addresses to a global hashtable
icmp6_send() function is expensive on systems with a large number of
interfaces. Every time it’s called, it has to verify that the source
address does not correspond to an existing anycast address by looping
through every device and every anycast address on the device.  This can
result in significant delays for a CPU when there are a large number of
neighbors and ND timers are frequently timing out and calling
neigh_invalidate().

Add anycast addresses to a global hashtable to allow quick searching for
matching anycast addresses.  This is based on inet6_addr_lst in addrconf.c.

Signed-off-by: Jeff Barnhill <0xeffeff@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2018-11-02 23:54:56 -07:00
Frieder Schrempf 7b900ead6c usbnet: smsc95xx: disable carrier check while suspending
We need to make sure, that the carrier check polling is disabled
while suspending. Otherwise we can end up with usbnet_read_cmd()
being issued when only usbnet_read_cmd_nopm() is allowed. If this
happens, read operations lock up.

Fixes: d69d169493 ("usbnet: smsc95xx: fix link detection for disabled autonegotiation")
Signed-off-by: Frieder Schrempf <frieder.schrempf@kontron.de>
Reviewed-by: Raghuram Chary J <RaghuramChary.Jallipalli@microchip.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2018-11-02 23:49:15 -07:00
Mathieu Malaterre 49682bfa1e net: document skb parameter in function 'skb_gso_size_check'
Remove kernel-doc warning:

  net/core/skbuff.c:4953: warning: Function parameter or member 'skb' not described in 'skb_gso_size_check'

Signed-off-by: Mathieu Malaterre <malat@debian.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
2018-11-02 23:34:37 -07:00
Olof Johansson 8008cc78d3 Fix for omap1 ams-delta irq
We need to use IRQ_NOTCONNECTED instead of -EINVAL for
 ams_delta_modem_ports irq.
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Merge tag 'omap-for-v4.20/omap1-fix-signed' of git://git.kernel.org/pub/scm/linux/kernel/git/tmlind/linux-omap into fixes

Fix for omap1 ams-delta irq

We need to use IRQ_NOTCONNECTED instead of -EINVAL for
ams_delta_modem_ports irq.

* tag 'omap-for-v4.20/omap1-fix-signed' of git://git.kernel.org/pub/scm/linux/kernel/git/tmlind/linux-omap:
  ARM: OMAP1: ams-delta: Fix impossible .irq < 0

Signed-off-by: Olof Johansson <olof@lixom.net>
2018-11-02 22:31:40 -07:00
Alexandre Torgue 00a6a845c0 ARM: dts: stm32: update HASH1 dmas property on stm32mp157c
Remove unused parameter from HASH1 dmas property on stm32mp157c SoC.

Fixes: 1e726a40e0 ("ARM: dts: stm32: Add HASH support on stm32mp157c")
Signed-off-by: Alexandre Torgue <alexandre.torgue@st.com>
[Olof: Bug doesn't cause any harm, so shouldn't need stable backport]
Signed-off-by: Olof Johansson <olof@lixom.net>
2018-11-02 22:31:25 -07:00
Arnd Bergmann d4f79cb872 ARM: orion: avoid VLA in orion_mpp_conf
Testing randconfig builds found an instance of a VLA that was
missed when determining that we have removed them all:

arch/arm/plat-orion/mpp.c: In function 'orion_mpp_conf':
arch/arm/plat-orion/mpp.c:31:2: error: ISO C90 forbids variable length array 'mpp_ctrl' [-Werror=vla]

This one is fairly straightforward: we know what all three
callers are, and the maximum length is not very long.

Fixes: 68664695ae57 ("Makefile: Globally enable VLA warning")
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Reviewed-by: Andrew Lunn <andrew@lunn.ch>
Reviewed-by: Kees Cook <keescook@chromium.org>
Signed-off-by: Olof Johansson <olof@lixom.net>
2018-11-02 22:31:24 -07:00
Marc Zyngier 2cbfdf4df5 iov_iter: Fix 9p virtio breakage
When switching to the new iovec accessors, a negation got subtly
dropped, leading to 9p being remarkably broken (here with kvmtool):

[    7.430941] VFS: Mounted root (9p filesystem) on device 0:15.
[    7.432080] devtmpfs: mounted
[    7.432717] Freeing unused kernel memory: 1344K
[    7.433658] Run /virt/init as init process
  Warning: unable to translate guest address 0x7e00902ff000 to host
  Warning: unable to translate guest address 0x7e00902fefc0 to host
  Warning: unable to translate guest address 0x7e00902ff000 to host
  Warning: unable to translate guest address 0x7e008febef80 to host
  Warning: unable to translate guest address 0x7e008febf000 to host
  Warning: unable to translate guest address 0x7e008febef00 to host
  Warning: unable to translate guest address 0x7e008febf000 to host
[    7.436376] Kernel panic - not syncing: Requested init /virt/init failed (error -8).
[    7.437554] CPU: 29 PID: 1 Comm: swapper/0 Not tainted 4.19.0-rc8-02267-g00e23707442a #291
[    7.439006] Hardware name: linux,dummy-virt (DT)
[    7.439902] Call trace:
[    7.440387]  dump_backtrace+0x0/0x148
[    7.441104]  show_stack+0x14/0x20
[    7.441768]  dump_stack+0x90/0xb4
[    7.442425]  panic+0x120/0x27c
[    7.443036]  kernel_init+0xa4/0x100
[    7.443725]  ret_from_fork+0x10/0x18
[    7.444444] SMP: stopping secondary CPUs
[    7.445391] Kernel Offset: disabled
[    7.446169] CPU features: 0x0,23000438
[    7.446974] Memory Limit: none
[    7.447645] ---[ end Kernel panic - not syncing: Requested init /virt/init failed (error -8). ]---

Restoring the missing "!" brings the guest back to life.

Fixes: 00e2370744 ("iov_iter: Use accessor function")
Reported-by: Will Deacon <will.deacon@arm.com>
Signed-off-by: Marc Zyngier <marc.zyngier@arm.com>
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2018-11-02 19:45:01 -04:00
Thomas Gleixner bff9a1076a Merge branch 'clockevents/4.20-rc1' of https://git.linaro.org/people/daniel.lezcano/linux into timers/urgent
Pull clockevent update from Daniel Lezcano:

 - Add the per cpu timer for the c-sky architecture (Guo Ren)

 - Add the global timer for the c-sky architecture (Guo Ren)
2018-11-02 21:58:39 +01:00
Daniel Borkmann 28c2fae726 bpf: fix bpf_prog_get_info_by_fd to return 0 func_lens for unpriv
While dbecd73884 ("bpf: get kernel symbol addresses via syscall")
zeroed info.nr_jited_ksyms in bpf_prog_get_info_by_fd() for queries
from unprivileged users, commit 815581c11c ("bpf: get JITed image
lengths of functions via syscall") forgot about doing so and therefore
returns the #elems of the user set up buffer which is incorrect. It
also needs to indicate a info.nr_jited_func_lens of zero.

Fixes: 815581c11c ("bpf: get JITed image lengths of functions via syscall")
Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
Cc: Sandipan Das <sandipan@linux.vnet.ibm.com>
Cc: Song Liu <songliubraving@fb.com>
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
2018-11-02 13:51:15 -07:00
Daniel Borkmann b0970f235f Merge branch 'bpf-accurate-prog-addr'
Song Liu says:

====================
Changes v1 -> v2:
1. Added main program length to bpf_prog_info->jited_fun_lens (3/3).
2. Updated commit message of 1/3 and 2/3 with more background about the
   address masking, and why it is still save after the changes.
3. Replace "ulong" with "unsigned long".

This set improves bpf program address showed in /proc/kallsyms and in
bpf_prog_info. First, real program address is showed instead of page
address. Second, when there is no subprogram, bpf_prog_info->jited_ksyms
and bpf_prog_info->jited_fun_lens returns the main prog address and
length.
====================

Acked-by: Alexei Starovoitov <ast@kernel.org>
Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
2018-11-02 21:39:03 +01:00
Song Liu ff1889fc53 bpf: show main program address and length in bpf_prog_info
Currently, when there is no subprog (prog->aux->func_cnt == 0),
bpf_prog_info does not return any jited_ksyms or jited_func_lens. This
patch adds main program address (prog->bpf_func) and main program
length (prog->jited_len) to bpf_prog_info.

Signed-off-by: Song Liu <songliubraving@fb.com>
Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
2018-11-02 21:39:01 +01:00
Song Liu de57e99ceb bpf: show real jited address in bpf_prog_info->jited_ksyms
Currently, jited_ksyms in bpf_prog_info shows page addresses of jited
bpf program. The main reason here is to not expose randomized start
address. However, this is not ideal for detailed profiling (find hot
instructions from stack traces). This patch replaces the page address
with real prog start address.

This change is OK because bpf_prog_get_info_by_fd() is only available
to root.

Signed-off-by: Song Liu <songliubraving@fb.com>
Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
2018-11-02 21:39:01 +01:00
Song Liu df0734702a bpf: show real jited prog address in /proc/kallsyms
Currently, /proc/kallsyms shows page address of jited bpf program. The
main reason here is to not expose randomized start address. However,
This is not ideal for detailed profiling (find hot instructions from
stack traces). This patch replaces the page address with real prog start
address.

This change is OK because these addresses are still protected by sysctl
kptr_restrict (see kallsyms_show_value()), and only programs loaded by
root are added to kallsyms (see bpf_prog_kallsyms_add()).

Signed-off-by: Song Liu <songliubraving@fb.com>
Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
2018-11-02 21:39:01 +01:00
Steve French b98e26df07 cifs: fix signed/unsigned mismatch on aio_read patch
The patch "CIFS: Add support for direct I/O read" had
a signed/unsigned mismatch (ssize_t vs. size_t) in the
return from one function.  Similar trivial change
in aio_write

Signed-off-by: Long Li <longli@microsoft.com>
Signed-off-by: Steve French <stfrench@microsoft.com>
Reported-by: Julia Lawall <julia.lawall@lip6.fr>
2018-11-02 14:09:42 -05:00
Colin Ian King 8c6c9bed87 cifs: don't dereference smb_file_target before null check
There is a null check on dst_file->private data which suggests
it can be potentially null. However, before this check, pointer
smb_file_target is derived from dst_file->private and dereferenced
in the call to tlink_tcon, hence there is a potential null pointer
deference.

Fix this by assigning smb_file_target and target_tcon after the
null pointer sanity checks.

Detected by CoverityScan, CID#1475302 ("Dereference before null check")

Fixes: 04b38d6012 ("vfs: pull btrfs clone API to vfs layer")
Signed-off-by: Colin Ian King <colin.king@canonical.com>
Signed-off-by: Steve French <stfrench@microsoft.com>
2018-11-02 14:09:42 -05:00
Long Li be4eb68846 CIFS: Add direct I/O functions to file_operations
With direct read/write functions implemented, add them to file_operations.

Dircet I/O is used under two conditions:
1. When mounting with "cache=none", CIFS uses direct I/O for all user file
data transfer.
2. When opening a file with O_DIRECT, CIFS uses direct I/O for all data
transfer on this file.

Signed-off-by: Long Li <longli@microsoft.com>
Signed-off-by: Steve French <stfrench@microsoft.com>
Reviewed-by: Ronnie Sahlberg <lsahlber@redhat.com>
2018-11-02 14:09:42 -05:00
Long Li 8c5f9c1ab7 CIFS: Add support for direct I/O write
With direct I/O write, user supplied buffers are pinned to the memory and data
are transferred directly from user buffers to the transport layer.

Change in v3: add support for kernel AIO

Change in v4:
Refactor common write code to __cifs_writev for direct and non-direct I/O.
Retry on direct I/O failure.

Signed-off-by: Long Li <longli@microsoft.com>
Signed-off-by: Steve French <stfrench@microsoft.com>
2018-11-02 14:09:42 -05:00
Long Li 6e6e2b86c2 CIFS: Add support for direct I/O read
With direct I/O read, we transfer the data directly from transport layer to
the user data buffer.

Change in v3: add support for kernel AIO

Change in v4:
Refactor common read code to __cifs_readv for direct and non-direct I/O.
Retry on direct I/O failure.

Signed-off-by: Long Li <longli@microsoft.com>
Signed-off-by: Steve French <stfrench@microsoft.com>
2018-11-02 14:09:41 -05:00
Steve French 0df444a00f smb3: missing defines and structs for reparse point handling
We were missing some structs from MS-FSCC relating to
reparse point handling.  Add them to protocol defines
in smb2pdu.h

Signed-off-by: Steve French <stfrench@microsoft.com>
Reviewed-by: Aurelien Aptel <aaptel@suse.com>
2018-11-02 14:09:41 -05:00
Steve French dfe33f9abc smb3: allow more detailed protocol info on open files for debugging
In order to debug complex problems it is often helpful to
have detailed information on the client and server view
of the open file information.  Add the ability for root to
view the list of smb3 open files and dump the persistent
handle and other info so that it can be more easily
correlated with server logs.

Sample output from "cat /proc/fs/cifs/open_files"

 # Version:1
 # Format:
 # <tree id> <persistent fid> <flags> <count> <pid> <uid> <filename> <mid>
 0x5 0x800000378 0x8000 1 7704 0 some-file 0x14
 0xcb903c0c 0x84412e67 0x8000 1 7754 1001 rofile 0x1a6d
 0xcb903c0c 0x9526b767 0x8000 1 7720 1000 file 0x1a5b
 0xcb903c0c 0x9ce41a21 0x8000 1 7715 0 smallfile 0xd67

Signed-off-by: Steve French <stfrench@microsoft.com>
Reviewed-by: Ronnie Sahlberg <lsahlber@redhat.com>
2018-11-02 14:09:41 -05:00
Steve French 926674de67 smb3: on kerberos mount if server doesn't specify auth type use krb5
Some servers (e.g. Azure) do not include a spnego blob in the SMB3
negotiate protocol response, so on kerberos mounts ("sec=krb5")
we can fail, as we expected the server to list its supported
auth types (OIDs in the spnego blob in the negprot response).
Change this so that on krb5 mounts we default to trying krb5 if the
server doesn't list its supported protocol mechanisms.

Signed-off-by: Steve French <stfrench@microsoft.com>
Reviewed-by: Ronnie Sahlberg <lsahlber@redhat.com>
CC: Stable <stable@vger.kernel.org>
2018-11-02 14:09:41 -05:00
Steve French f8af49dd17 smb3: add trace point for tree connection
In debugging certain scenarios, especially reconnect cases,
it can be helpful to have a dynamic trace point for the
result of tree connect.  See sample output below
from a reconnect event. The new event is 'smb3_tcon'

            TASK-PID   CPU#  ||||    TIMESTAMP  FUNCTION
               | |       |   ||||       |         |
           cifsd-6071  [001] ....  2659.897923: smb3_reconnect: server=localhost current_mid=0xa
     kworker/1:1-71    [001] ....  2666.026342: smb3_cmd_done: 	sid=0x0 tid=0x0 cmd=0 mid=0
     kworker/1:1-71    [001] ....  2666.026576: smb3_cmd_err: 	sid=0xc49e1787 tid=0x0 cmd=1 mid=1 status=0xc0000016 rc=-5
     kworker/1:1-71    [001] ....  2666.031677: smb3_cmd_done: 	sid=0xc49e1787 tid=0x0 cmd=1 mid=2
     kworker/1:1-71    [001] ....  2666.031921: smb3_cmd_done: 	sid=0xc49e1787 tid=0x6e78f05f cmd=3 mid=3
     kworker/1:1-71    [001] ....  2666.031923: smb3_tcon: xid=0 sid=0xc49e1787 tid=0x0 unc_name=\\localhost\test rc=0
     kworker/1:1-71    [001] ....  2666.032097: smb3_cmd_done: 	sid=0xc49e1787 tid=0x6e78f05f cmd=11 mid=4
     kworker/1:1-71    [001] ....  2666.032265: smb3_cmd_done: 	sid=0xc49e1787 tid=0x7912332f cmd=3 mid=5
     kworker/1:1-71    [001] ....  2666.032266: smb3_tcon: xid=0 sid=0xc49e1787 tid=0x0 unc_name=\\localhost\IPC$ rc=0
     kworker/1:1-71    [001] ....  2666.032386: smb3_cmd_done: 	sid=0xc49e1787 tid=0x7912332f cmd=11 mid=6

Signed-off-by: Steve French <stfrench@microsoft.com>
Reviewed-by: Ronnie Sahlberg <lsahlber@redhat.com>
2018-11-02 14:09:41 -05:00
Colin Ian King 413d610081 cifs: fix spelling mistake, EACCESS -> EACCES
Trivial fix to a spelling mistake of the error access name EACCESS,
rename to EACCES

Signed-off-by: Colin Ian King <colin.king@canonical.com>
Signed-off-by: Steve French <stfrench@microsoft.com>
2018-11-02 14:09:41 -05:00
Ronnie Sahlberg 0c5d6cb664 cifs: fix return value for cifs_listxattr
If the application buffer was too small to fit all the names
we would still count the number of bytes and return this for
listxattr. This would then trigger a BUG in usercopy.c

Fix the computation of the size so that we return -ERANGE
correctly when the buffer is too small.

This fixes the kernel BUG for xfstest generic/377

Signed-off-by: Ronnie Sahlberg <lsahlber@redhat.com>
Signed-off-by: Steve French <stfrench@microsoft.com>
Reviewed-by: Aurelien Aptel <aaptel@suse.com>
2018-11-02 14:09:41 -05:00
Guo Ren ab1e77c3f5 dt-bindings: timer: gx6605s SOC timer
Dt-bindings doc for gx6605s SOC's system timer.

Signed-off-by: Guo Ren <ren_guo@c-sky.com>
Reviewed-by: Rob Herring <robh@kernel.org>
Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org>
2018-11-02 19:41:50 +01:00
Guo Ren 33745c3cc5 clocksource/drivers/c-sky: Add gx6605s SOC system timer
The driver is for gx6605s SOC system timer and there are two
same timers in gx6605s. We use one for clkevt and another one for
clksrc.

The timer is mmio map to access, so we need give mmio address in dts.

The counter at 0x0  offset is clock event.
The counter at 0x40 offset is clock source.

Signed-off-by: Guo Ren <ren_guo@c-sky.com>
Cc: Daniel Lezcano <daniel.lezcano@linaro.org>
Cc: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org>
2018-11-02 19:41:12 +01:00
Guo Ren 732e5dca37 dt-bindings: timer: C-SKY Multi-processor timer
Dt-bingdings doc for C-SKY SMP system setting.

Signed-off-by: Guo Ren <ren_guo@c-sky.com>
Reviewed-by: Rob Herring <robh@kernel.org>
Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org>
2018-11-02 19:41:05 +01:00
Guo Ren a7ad38b0dd clocksource/drivers/c-sky: Add C-SKY SMP timer
The driver is for C-SKY SMP timer. It only supports oneshot event
and 32bit overflow for clocksource. Per cpu core has one timer and
all timers share one clock-counter-input from the same clocksource.

This use mfcr&mtcr instructions to access the regs.

Signed-off-by: Guo Ren <ren_guo@c-sky.com>
Cc: Daniel Lezcano <daniel.lezcano@linaro.org>
Cc: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org>
2018-11-02 19:39:54 +01:00
Linus Walleij 513eb98595 ARM: defconfig: Update multi_v7 to use PREEMPT
Using CONFIG_PREEMPT as preemption model for ARMv7 systems
appear to be the most reasonable default.

Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Olof Johansson <olof@lixom.net>
2018-11-02 11:39:52 -07:00
John Garry 7f3d08f525 arm64: defconfig: Enable some IPMI configs
The arm64 port now runs on servers which use IPMI. This patch enables
relevant core configs to save manually enabling them when testing
mainline.

Signed-off-by: John Garry <john.garry@huawei.com>
[olof: Switched to =m instead of =y]
Signed-off-by: Olof Johansson <olof@lixom.net>
2018-11-02 11:39:50 -07:00
Christoph Hellwig f62717551b arm64: fix warnings without CONFIG_IOMMU_DMA
__swiotlb_get_sgtable_page and __swiotlb_mmap_pfn are not only misnamed
but also only used if CONFIG_IOMMU_DMA is set.  Just add a simple ifdef
for now, given that we plan to remove them entirely for the next merge
window.

Reported-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: Christoph Hellwig <hch@lst.de>
Tested-by: Will Deacon <will.deacon@arm.com>
Acked-by: Catalin Marinas <catalin.marinas@arm.com>
2018-11-02 19:27:22 +01:00
Linus Torvalds 5f21585384 for-linus-20181102
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Merge tag 'for-linus-20181102' of git://git.kernel.dk/linux-block

Pull block layer fixes from Jens Axboe:
 "The biggest part of this pull request is the revert of the blkcg
  cleanup series. It had one fix earlier for a stacked device issue, but
  another one was reported. Rather than play whack-a-mole with this,
  revert the entire series and try again for the next kernel release.

  Apart from that, only small fixes/changes.

  Summary:

   - Indentation fixup for mtip32xx (Colin Ian King)

   - The blkcg cleanup series revert (Dennis Zhou)

   - Two NVMe fixes. One fixing a regression in the nvme request
     initialization in this merge window, causing nvme-fc to not work.
     The other is a suspend/resume p2p resource issue (James, Keith)

   - Fix sg discard merge, allowing us to merge in cases where we didn't
     before (Jianchao Wang)

   - Call rq_qos_exit() after the queue is frozen, preventing a hang
     (Ming)

   - Fix brd queue setup, fixing an oops if we fail setting up all
     devices (Ming)"

* tag 'for-linus-20181102' of git://git.kernel.dk/linux-block:
  nvme-pci: fix conflicting p2p resource adds
  nvme-fc: fix request private initialization
  blkcg: revert blkcg cleanups series
  block: brd: associate with queue until adding disk
  block: call rq_qos_exit() after queue is frozen
  mtip32xx: clean an indentation issue, remove extraneous tabs
  block: fix the DISCARD request merge
2018-11-02 11:25:48 -07:00
Linus Torvalds fcc37f76a9 pwm: Changes for v4.20-rc1
This series contains a number of improvements to existing drivers, such
 as LPSS. Some drivers, such as renesas-tpu and rcar get support for more
 SoC generations. To round things off this fixes an issue with the sysfs
 interface.
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Merge tag 'pwm/for-4.20-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/thierry.reding/linux-pwm

Pull pwm updates from Thierry Reding:
 "This series contains a number of improvements to existing drivers,
  such as LPSS. Some drivers, such as renesas-tpu and rcar get support
  for more SoC generations. To round things off this fixes an issue with
  the sysfs interface"

* tag 'pwm/for-4.20-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/thierry.reding/linux-pwm:
  pwm: lpss: Only set update bit if we are actually changing the settings
  pwm: lpss: Force runtime-resume on suspend on Cherry Trail
  pwm: Enable TI ECAP driver for ARCH_K3
  dt-bindings: pwm: tiecap: Add TI AM654 SoC specific compatible
  dt-bindings: pwm: rcar: Add r8a774a1 support
  pwm: Send a uevent on the pwmchip device upon channel sysfs (un)export
  Revert "pwm: Set class for exported channels in sysfs"
  dt-bindings: pwm: renesas-tpu: Document r8a7744 support
  dt-bindings: pwm: rcar: Add r8a7744 support
  dt-bindings: pwm: renesas: tpu: Document R8A779{7|8}0 bindings
  dt-bindings: pwm: renesas: pwm-rcar: Document R8A779{7|8}0 bindings
  dt-bindings: pwm: renesas: tpu: Fix "compatible" prop description
  pwm: Use SPDX identifier for Renesas drivers
  pwm: lpss: Add get_state callback
  pwm: lpss: Release runtime-pm reference from the driver's remove callback
  pwm: lpss: Check PWM powerstate after resume on Cherry Trail devices
  pwm: lpss: Move struct pwm_lpss_chip definition to the header file
  pwm: lpss: Add ACPI HID for second PWM controller on Cherry Trail devices
  ACPI / PM: Export acpi_device_get_power() for use by modular build drivers
  pwm: tegra: Remove gratuituous blank line
2018-11-02 11:22:45 -07:00
Marc Zyngier 832ad0e3da soc: ti: QMSS: Fix usage of irq_set_affinity_hint
The Keystone QMSS driver is pretty damaged, in the sense that it
does things like this:

	irq_set_affinity_hint(irq, to_cpumask(&cpu_map));

where cpu_map is a local variable. As we leave the function, this
will point to nowhere-land, and things will end-up badly.

Instead, let's use a proper cpumask that gets allocated, giving
the driver a chance to actually work with things like irqbalance
as well as have a hypothetical 64bit future.

Cc: stable@vger.kernel.org
Acked-by: Santosh Shilimkar <ssantosh@kernel.org>
Signed-off-by: Marc Zyngier <marc.zyngier@arm.com>
Signed-off-by: Olof Johansson <olof@lixom.net>
2018-11-02 11:22:09 -07:00
Linus Torvalds 0b21f21ae0 * skx_edac: Address translation for NVDIMMs (Tony Luck and Qiuxu Zhuo)
* ACPI_ADXL build fix
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Merge tag 'edac_for_4.20_2' of git://git.kernel.org/pub/scm/linux/kernel/git/bp/bp

Pull more EDAC updates from Borislav Petkov:
 "The second part of the EDAC pile which contains the ADXL user and a
  build fix which addresses a not-so-sensical .config but fixes
  randconfig builds people do:

   - skx_edac: Address translation for NVDIMMs (Tony Luck and Qiuxu Zhuo)

   - ACPI_ADXL build fix"

[ I don't think "sensical" is a word, particularly when used in the
  context of actually meaning "nonsensical", but I like it   - Linus ]

* tag 'edac_for_4.20_2' of git://git.kernel.org/pub/scm/linux/kernel/git/bp/bp:
  EDAC, skx: Fix randconfig builds
  EDAC, skx_edac: Add address translation for non-volatile DIMMs
2018-11-02 11:17:22 -07:00
Anders Roxell 966866892c arm64: kprobe: make page to RO mode when allocate it
Commit 1404d6f13e ("arm64: dump: Add checking for writable and exectuable pages")
has successfully identified code that leaves a page with W+X
permissions.

[    3.245140] arm64/mm: Found insecure W+X mapping at address (____ptrval____)/0xffff000000d90000
[    3.245771] WARNING: CPU: 0 PID: 1 at ../arch/arm64/mm/dump.c:232 note_page+0x410/0x420
[    3.246141] Modules linked in:
[    3.246653] CPU: 0 PID: 1 Comm: swapper/0 Not tainted 4.19.0-rc5-next-20180928-00001-ge70ae259b853-dirty #62
[    3.247008] Hardware name: linux,dummy-virt (DT)
[    3.247347] pstate: 80000005 (Nzcv daif -PAN -UAO)
[    3.247623] pc : note_page+0x410/0x420
[    3.247898] lr : note_page+0x410/0x420
[    3.248071] sp : ffff00000804bcd0
[    3.248254] x29: ffff00000804bcd0 x28: ffff000009274000
[    3.248578] x27: ffff00000921a000 x26: ffff80007dfff000
[    3.248845] x25: ffff0000093f5000 x24: ffff000009526f6a
[    3.249109] x23: 0000000000000004 x22: ffff000000d91000
[    3.249396] x21: ffff000000d90000 x20: 0000000000000000
[    3.249661] x19: ffff00000804bde8 x18: 0000000000000400
[    3.249924] x17: 0000000000000000 x16: 0000000000000000
[    3.250271] x15: ffffffffffffffff x14: 295f5f5f5f6c6176
[    3.250594] x13: 7274705f5f5f5f28 x12: 2073736572646461
[    3.250941] x11: 20746120676e6970 x10: 70616d20582b5720
[    3.251252] x9 : 6572756365736e69 x8 : 3039643030303030
[    3.251519] x7 : 306666666678302f x6 : ffff0000095467b2
[    3.251802] x5 : 0000000000000000 x4 : 0000000000000000
[    3.252060] x3 : 0000000000000000 x2 : ffffffffffffffff
[    3.252323] x1 : 4d151327adc50b00 x0 : 0000000000000000
[    3.252664] Call trace:
[    3.252953]  note_page+0x410/0x420
[    3.253186]  walk_pgd+0x12c/0x238
[    3.253417]  ptdump_check_wx+0x68/0xf8
[    3.253637]  mark_rodata_ro+0x68/0x98
[    3.253847]  kernel_init+0x38/0x160
[    3.254103]  ret_from_fork+0x10/0x18

kprobes allocates a writable executable page with module_alloc() in
order to store executable code.
Reworked to that when allocate a page it sets mode RO. Inspired by
commit 63fef14fc9 ("kprobes/x86: Make insn buffer always ROX and use text_poke()").

Suggested-by: Arnd Bergmann <arnd@arndb.de>
Suggested-by: Ard Biesheuvel <ard.biesheuvel@linaro.org>
Acked-by: Will Deacon <will.deacon@arm.com>
Acked-by: Masami Hiramatsu <mhiramat@kernel.org>
Reviewed-by: Laura Abbott <labbott@redhat.com>
Signed-off-by: Anders Roxell <anders.roxell@linaro.org>
[catalin.marinas@arm.com: removed unnecessary casts]
Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
2018-11-02 18:15:07 +00:00
Linus Torvalds 54480aa7fa sound fixes for 4.20-rc1
A few device-specific fixes: a fix for SPDIF on old Creative PCI
 board, and two additional fixes for the recent changes in FireWire
 audio stack.
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Merge tag 'sound-fix-4.20-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound

Pull sound fixes from Takashi Iwai:
 "A few device-specific fixes: a fix for SPDIF on old Creative PCI
  board, and two additional fixes for the recent changes in FireWire
  audio stack"

* tag 'sound-fix-4.20-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound:
  ALSA: firewire-lib: fix insufficient PCM rule for period/buffer size
  ALSA: ca0106: Disable IZD on SB0570 DAC to fix audio pops
  ALSA: dice: fix to wait for releases of all ALSA character devices
2018-11-02 11:02:52 -07:00
Linus Torvalds bc6080ae38 drm, i915, amdgpu, bridge + core quirk
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Merge tag 'drm-next-2018-11-02' of git://anongit.freedesktop.org/drm/drm

Pull drm fixes from Dave Airlie:
 "Pretty much a normal fixes pull pre-rc1, mostly amdgpu fixes, one i915
  link training regression fix, and a couple of minor panel/bridge fixes
  and a panel quirk"

* tag 'drm-next-2018-11-02' of git://anongit.freedesktop.org/drm/drm: (37 commits)
  drm/amdgpu: revert "enable gfxoff in non-sriov and stutter mode by default"
  drm/amd/pp: Print warning if od_sclk/mclk out of range
  drm/amd/pp: Fix pp_sclk/mclk_od not work on Vega10
  drm/amd/pp: Fix pp_sclk/mclk_od not work on smu7
  drm/amd/powerplay: no MGPU fan boost enablement on DPM disabled
  drm/amdgpu: Fix skipping hangged job reset during gpu recover.
  drm/amd/powerplay: revise Vega20 pptable version check
  drm/amd/display: set backlight level limit to 1
  drm/panel: simple: Innolux TV123WAM is actually P120ZDG-BF1
  dt-bindings: drm/panel: simple: Innolux TV123WAM is actually P120ZDG-BF1
  drm/bridge: ti-sn65dsi86: Remove the mystery delay
  drm/panel: simple: Add "no-hpd" delay for Innolux TV123WAM
  drm/panel: simple: Support panels with HPD where HPD isn't connected
  dt-bindings: drm/panel: simple: Add no-hpd property
  drm/edid: Add 6 bpc quirk for BOE panel.
  drm/amdgpu: fix reporting of failed msg sent to SMU (v2)
  drm/amdgpu: Fix compute ring 1.0.0 failure after reset
  drm/amdgpu: fix VM leaf walking
  drm/amdgpu: fix amdgpu_vm_fini
  drm/amd/powerplay: commonize the API for retrieving current clocks
  ...
2018-11-02 10:58:20 -07:00
Yangtao Li 5900e02b5b arm64: kdump: fix small typo
This brings the kernel doc in line with the function signature.

Signed-off-by: Yangtao Li <tiny.windzz@gmail.com>
Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
2018-11-02 17:24:17 +00:00