Commit Graph

812358 Commits

Author SHA1 Message Date
Linus Torvalds
2137397c92 sound fixes for 5.0
Here are a few last-minute fixes for 5.0.  The most significant one
 is the OF-node refcount fix for ASoC simple-card, which could be
 triggered on many boards.  Another fix for ASoC core is for the
 error handling in topology, while others are device-specific fixes
 for Samsung and HD-audio.
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Merge tag 'sound-5.0' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound

Pull sound fixes from Takashi Iwai:
 "Here are a few last-minute fixes for 5.0.

  The most significant one is the OF-node refcount fix for ASoC
  simple-card, which could be triggered on many boards. Another fix for
  ASoC core is for the error handling in topology, while others are
  device-specific fixes for Samsung and HD-audio"

* tag 'sound-5.0' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound:
  ASoC: simple-card: fixup refcount_t underflow
  ASoC: topology: free created components in tplg load error
  ALSA: hda/realtek: Disable PC beep in passthrough on alc285
  ALSA: hda/realtek - Headset microphone and internal speaker support for System76 oryp5
  ASoC: samsung: i2s: Fix prescaler setting for the secondary DAI
2019-02-20 09:42:52 -08:00
Linus Torvalds
fb83f15ef9 Pin control fixes for the v5.0 series:
- Meson8B fixup for the sdc pins
 - Fix SDC tile position for Qualcomm QCS404
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Merge tag 'pinctrl-v5.0-3' of git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-pinctrl

Pull pin control fixes from Linus Walleij:
 "Some final pin control fixes (I hope) to round off the v5.0 pin
  control development cycle.

  Only driver fixes, one for stable:

   - Meson8B fixup for the sdc pins

   - Fix SDC tile position for Qualcomm QCS404"

* tag 'pinctrl-v5.0-3' of git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-pinctrl:
  pinctrl: meson: meson8b: fix the sdxc_a data 1..3 pins
  pinctrl: qcom: qcs404: Correct SDC tile
2019-02-20 09:39:53 -08:00
Linus Torvalds
c828c2651b Two GPIO fixes for the v5.0 series:
- Per-instance irqchip on the MT7621
 - Avoid direction setting using pin control on MMP2
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Merge tag 'gpio-v5.0-4' of git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-gpio

Pull GPIO fixes from Linus Walleij:
 "Two GPIO fixes for the v5.0 series:

   - Per-instance irqchip on the MT7621

   - Avoid direction setting using pin control on MMP2"

* tag 'gpio-v5.0-4' of git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-gpio:
  gpio: pxa: avoid attempting to set pin direction via pinctrl on MMP2
  gpio: MT7621: use a per instance irq_chip structure
2019-02-20 09:36:33 -08:00
Linus Torvalds
7d9d592caf - Don't add a digit to MTD-backed nvmem device names
- Make sure powernv flash names are unique
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Merge tag 'mtd/fixes-for-5.0-rc8' of git://git.infradead.org/linux-mtd

Pull MTD fixes from Boris Brezillon:

 - Don't add a digit to MTD-backed nvmem device names

 - Make sure powernv flash names are unique

* tag 'mtd/fixes-for-5.0-rc8' of git://git.infradead.org/linux-mtd:
  mtd: powernv_flash: Fix device registration error
  mtd: Use mtd->name when registering nvmem device
2019-02-20 09:16:11 -08:00
Linus Torvalds
1f5a018c5b Merge branch 'fixes-v5.1-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/jmorris/linux-security
Pull keys fixes from James Morris:

 - Handle quotas better, allowing full quota to be reached.

 - Fix the creation of shortcuts in the assoc_array internal
   representation when the index key needs to be an exact multiple of
   the machine word size.

 - Fix a dependency loop between the request_key contruction record and
   the request_key authentication key. The construction record isn't
   really necessary and can be dispensed with.

 - Set the timestamp on a new key rather than leaving it as 0. This
   would ordinarily be fine - provided the system clock is never set to
   a time before 1970

* 'fixes-v5.1-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/jmorris/linux-security:
  keys: Timestamp new keys
  keys: Fix dependency loop between construction record and auth key
  assoc_array: Fix shortcut creation
  KEYS: allow reaching the keys quotas exactly
2019-02-20 09:09:33 -08:00
Linus Torvalds
40e196a906 Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net
Pull networking fixes from David Miller:

 1) Fix suspend and resume in mt76x0u USB driver, from Stanislaw
    Gruszka.

 2) Missing memory barriers in xsk, from Magnus Karlsson.

 3) rhashtable fixes in mac80211 from Herbert Xu.

 4) 32-bit MIPS eBPF JIT fixes from Paul Burton.

 5) Fix for_each_netdev_feature() on big endian, from Hauke Mehrtens.

 6) GSO validation fixes from Willem de Bruijn.

 7) Endianness fix for dwmac4 timestamp handling, from Alexandre Torgue.

 8) More strict checks in tcp_v4_err(), from Eric Dumazet.

 9) af_alg_release should NULL out the sk after the sock_put(), from Mao
    Wenan.

10) Missing unlock in mac80211 mesh error path, from Wei Yongjun.

11) Missing device put in hns driver, from Salil Mehta.

* git://git.kernel.org/pub/scm/linux/kernel/git/davem/net: (44 commits)
  sky2: Increase D3 delay again
  vhost: correctly check the return value of translate_desc() in log_used()
  net: netcp: Fix ethss driver probe issue
  net: hns: Fixes the missing put_device in positive leg for roce reset
  net: stmmac: Fix a race in EEE enable callback
  qed: Fix iWARP syn packet mac address validation.
  qed: Fix iWARP buffer size provided for syn packet processing.
  r8152: Add support for MAC address pass through on RTL8153-BD
  mac80211: mesh: fix missing unlock on error in table_path_del()
  net/mlx4_en: fix spelling mistake: "quiting" -> "quitting"
  net: crypto set sk to NULL when af_alg_release.
  net: Do not allocate page fragments that are not skb aligned
  mm: Use fixed constant in page_frag_alloc instead of size + 1
  tcp: tcp_v4_err() should be more careful
  tcp: clear icsk_backoff in tcp_write_queue_purge()
  net: mv643xx_eth: disable clk on error path in mv643xx_eth_shared_probe()
  qmi_wwan: apply SET_DTR quirk to Sierra WP7607
  net: stmmac: handle endianness in dwmac4_get_timestamp
  doc: Mention MSG_ZEROCOPY implementation for UDP
  mlxsw: __mlxsw_sp_port_headroom_set(): Fix a use of local variable
  ...
2019-02-19 16:13:19 -08:00
Kai-Heng Feng
1765f5dcd0 sky2: Increase D3 delay again
Another platform requires even longer delay to make the device work
correctly after S3.

So increase the delay to 300ms.

BugLink: https://bugs.launchpad.net/bugs/1798921

Signed-off-by: Kai-Heng Feng <kai.heng.feng@canonical.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2019-02-19 14:16:41 -08:00
Jason Wang
816db76635 vhost: correctly check the return value of translate_desc() in log_used()
When fail, translate_desc() returns negative value, otherwise the
number of iovs. So we should fail when the return value is negative
instead of a blindly check against zero.

Detected by CoverityScan, CID# 1442593:  Control flow issues  (DEADCODE)

Fixes: cc5e710759 ("vhost: log dirty page correctly")
Acked-by: Michael S. Tsirkin <mst@redhat.com>
Reported-by: Stephen Hemminger <stephen@networkplumber.org>
Signed-off-by: Jason Wang <jasowang@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2019-02-19 13:14:45 -08:00
Takashi Iwai
268836649c ASoC: Fixes for v5.0
A few small fixes, a driver fix for Samsung, a fix for refcounting of
 of_nodes in the simple-card driver that triggered on a lot of systems
 and a fix for topology error handling.
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Merge tag 'asoc-fix-v5.0-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/sound into for-linus

ASoC: Fixes for v5.0

A few small fixes, a driver fix for Samsung, a fix for refcounting of
of_nodes in the simple-card driver that triggered on a lot of systems
and a fix for topology error handling.
2019-02-19 12:35:55 +01:00
David S. Miller
5cd856a5ef Merge git://git.kernel.org/pub/scm/linux/kernel/git/pablo/nf
Pablo Neira Ayuso says:

====================
Netfilter/IPVS fixes for net

The following patchset contains Netfilter/IPVS fixes for net:

1) Follow up patch to fix a compilation warning in a recent IPVS fix:
   098e13f5b2 ("ipvs: fix dependency on nf_defrag_ipv6").

2) Bogus ENOENT error on flush after rule deletion in the same batch,
   reported by Phil Sutter.
====================

Signed-off-by: David S. Miller <davem@davemloft.net>
2019-02-18 17:56:30 -08:00
Murali Karicheri
1f43f400a2 net: netcp: Fix ethss driver probe issue
Recent commit below has introduced a bug in netcp driver that causes
the ethss driver probe failure and thus break the networking function
on K2 SoCs such as K2HK, K2L, K2E etc. This patch fixes the issue to
restore networking on the above SoCs.

Fixes: 21c328dcec ("net: ethernet: Convert to using %pOFn instead of device_node.name")
Signed-off-by: Murali Karicheri <m-karicheri2@ti.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2019-02-18 17:49:24 -08:00
Salil Mehta
4d96e13ee9 net: hns: Fixes the missing put_device in positive leg for roce reset
This patch fixes the missing device reference release-after-use in
the positive leg of the roce reset API of the HNS DSAF.

Fixes: c969c6e7ab ("net: hns: Fix object reference leaks in hns_dsaf_roce_reset()")
Reported-by: John Garry <john.garry@huawei.com>
Signed-off-by: Salil Mehta <salil.mehta@huawei.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2019-02-18 17:45:00 -08:00
David S. Miller
92a8c299a7 wireless-drivers fixes for 5.0
Hopefully the last set of fixes for 5.0, only fix this time.
 
 mt76
 
 * fix regression with resume on mt76x0u USB devices
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Merge tag 'wireless-drivers-for-davem-2019-02-18' of git://git.kernel.org/pub/scm/linux/kernel/git/kvalo/wireless-drivers

Kalle Valo says:

====================
wireless-drivers fixes for 5.0

Hopefully the last set of fixes for 5.0, only fix this time.

mt76

* fix regression with resume on mt76x0u USB devices
====================

Signed-off-by: David S. Miller <davem@davemloft.net>
2019-02-18 17:40:47 -08:00
Jose Abreu
8a7493e58a net: stmmac: Fix a race in EEE enable callback
We are saving the status of EEE even before we try to enable it. This
leads to a race with XMIT function that tries to arm EEE timer before we
set it up.

Fix this by only saving the EEE parameters after all operations are
performed with success.

Signed-off-by: Jose Abreu <joabreu@synopsys.com>
Fixes: d765955d2a ("stmmac: add the Energy Efficient Ethernet support")
Cc: Joao Pinto <jpinto@synopsys.com>
Cc: David S. Miller <davem@davemloft.net>
Cc: Giuseppe Cavallaro <peppe.cavallaro@st.com>
Cc: Alexandre Torgue <alexandre.torgue@st.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2019-02-18 17:39:11 -08:00
David S. Miller
694d79027e Merge branch 'qed-iWARP'
Michal Kalderon says:

====================
qed: iWARP - fix some syn related issues.

This series fixes two bugs related to iWARP syn processing flow.
====================

Signed-off-by: David S. Miller <davem@davemloft.net>
2019-02-18 16:51:54 -08:00
Michal Kalderon
8be3dadf04 qed: Fix iWARP syn packet mac address validation.
The ll2 forwards all syn packets to the driver without validating the mac
address. Add validation check in the driver's iWARP listener flow and drop
the packet if it isn't intended for the device.

Signed-off-by: Ariel Elior <ariel.elior@marvell.com>
Signed-off-by: Michal Kalderon <michal.kalderon@marvell.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2019-02-18 16:51:54 -08:00
Michal Kalderon
9addc92730 qed: Fix iWARP buffer size provided for syn packet processing.
The assumption that the maximum size of a syn packet is 128 bytes
is wrong. Tunneling headers were not accounted for.
Allocate buffers large enough for mtu.

Signed-off-by: Ariel Elior <ariel.elior@marvell.com>
Signed-off-by: Michal Kalderon <michal.kalderon@marvell.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2019-02-18 16:51:54 -08:00
Kees Cook
b5372fe5dc exec: load_script: Do not exec truncated interpreter path
Commit 8099b047ec ("exec: load_script: don't blindly truncate
shebang string") was trying to protect against a confused exec of a
truncated interpreter path. However, it was overeager and also refused
to truncate arguments as well, which broke userspace, and it was
reverted. This attempts the protection again, but allows arguments to
remain truncated. In an effort to improve readability, helper functions
and comments have been added.

Co-developed-by: Linus Torvalds <torvalds@linux-foundation.org>
Signed-off-by: Kees Cook <keescook@chromium.org>
Cc: Andrew Morton <akpm@linux-foundation.org>
Cc: Oleg Nesterov <oleg@redhat.com>
Cc: Samuel Dionne-Riel <samuel@dionne-riel.com>
Cc: Richard Weinberger <richard.weinberger@gmail.com>
Cc: Graham Christensen <graham@grahamc.com>
Cc: Michal Hocko <mhocko@suse.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2019-02-18 16:49:36 -08:00
David Chen
8e29d23e28 r8152: Add support for MAC address pass through on RTL8153-BD
RTL8153-BD is used in Dell DA300 type-C dongle.
It should be added to the whitelist of devices to activate MAC address
pass through.

Per confirming with Realtek all devices containing RTL8153-BD should
activate MAC pass through and there won't use pass through bit on efuse
like in RTL8153-AD.

Signed-off-by: David Chen <david.chen7@dell.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2019-02-18 16:37:40 -08:00
Wei Yongjun
f2ffff085d mac80211: mesh: fix missing unlock on error in table_path_del()
spin_lock_bh() is used in table_path_del() but rcu_read_unlock()
is used for unlocking. Fix it by using spin_unlock_bh() instead
of rcu_read_unlock() in the error handling case.

Fixes: b4c3fbe636 ("mac80211: Use linked list instead of rhashtable walk for mesh tables")
Acked-by: Herbert Xu <herbert@gondor.apana.org.au>
Signed-off-by: Wei Yongjun <weiyongjun1@huawei.com>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2019-02-18 16:29:54 -08:00
Colin Ian King
21d2cb491b net/mlx4_en: fix spelling mistake: "quiting" -> "quitting"
There is a spelling mistake in a en_err error message. Fix it.

Signed-off-by: Colin Ian King <colin.king@canonical.com>
Reviewed-by: Tariq Toukan <tariqt@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2019-02-18 12:06:42 -08:00
Mao Wenan
9060cb719e net: crypto set sk to NULL when af_alg_release.
KASAN has found use-after-free in sockfs_setattr.
The existed commit 6d8c50dcb0 ("socket: close race condition between sock_close()
and sockfs_setattr()") is to fix this simillar issue, but it seems to ignore
that crypto module forgets to set the sk to NULL after af_alg_release.

KASAN report details as below:
BUG: KASAN: use-after-free in sockfs_setattr+0x120/0x150
Write of size 4 at addr ffff88837b956128 by task syz-executor0/4186

CPU: 2 PID: 4186 Comm: syz-executor0 Not tainted xxx + #1
Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS
1.10.2-1ubuntu1 04/01/2014
Call Trace:
 dump_stack+0xca/0x13e
 print_address_description+0x79/0x330
 ? vprintk_func+0x5e/0xf0
 kasan_report+0x18a/0x2e0
 ? sockfs_setattr+0x120/0x150
 sockfs_setattr+0x120/0x150
 ? sock_register+0x2d0/0x2d0
 notify_change+0x90c/0xd40
 ? chown_common+0x2ef/0x510
 chown_common+0x2ef/0x510
 ? chmod_common+0x3b0/0x3b0
 ? __lock_is_held+0xbc/0x160
 ? __sb_start_write+0x13d/0x2b0
 ? __mnt_want_write+0x19a/0x250
 do_fchownat+0x15c/0x190
 ? __ia32_sys_chmod+0x80/0x80
 ? trace_hardirqs_on_thunk+0x1a/0x1c
 __x64_sys_fchownat+0xbf/0x160
 ? lockdep_hardirqs_on+0x39a/0x5e0
 do_syscall_64+0xc8/0x580
 entry_SYSCALL_64_after_hwframe+0x49/0xbe
RIP: 0033:0x462589
Code: f7 d8 64 89 02 b8 ff ff ff ff c3 66 0f 1f 44 00 00 48 89 f8 48 89
f7 48 89 d6 48 89
ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3
48 c7 c1 bc ff ff
ff f7 d8 64 89 01 48
RSP: 002b:00007fb4b2c83c58 EFLAGS: 00000246 ORIG_RAX: 0000000000000104
RAX: ffffffffffffffda RBX: 000000000072bfa0 RCX: 0000000000462589
RDX: 0000000000000000 RSI: 00000000200000c0 RDI: 0000000000000007
RBP: 0000000000000005 R08: 0000000000001000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 00007fb4b2c846bc
R13: 00000000004bc733 R14: 00000000006f5138 R15: 00000000ffffffff

Allocated by task 4185:
 kasan_kmalloc+0xa0/0xd0
 __kmalloc+0x14a/0x350
 sk_prot_alloc+0xf6/0x290
 sk_alloc+0x3d/0xc00
 af_alg_accept+0x9e/0x670
 hash_accept+0x4a3/0x650
 __sys_accept4+0x306/0x5c0
 __x64_sys_accept4+0x98/0x100
 do_syscall_64+0xc8/0x580
 entry_SYSCALL_64_after_hwframe+0x49/0xbe

Freed by task 4184:
 __kasan_slab_free+0x12e/0x180
 kfree+0xeb/0x2f0
 __sk_destruct+0x4e6/0x6a0
 sk_destruct+0x48/0x70
 __sk_free+0xa9/0x270
 sk_free+0x2a/0x30
 af_alg_release+0x5c/0x70
 __sock_release+0xd3/0x280
 sock_close+0x1a/0x20
 __fput+0x27f/0x7f0
 task_work_run+0x136/0x1b0
 exit_to_usermode_loop+0x1a7/0x1d0
 do_syscall_64+0x461/0x580
 entry_SYSCALL_64_after_hwframe+0x49/0xbe

Syzkaller reproducer:
r0 = perf_event_open(&(0x7f0000000000)={0x0, 0x70, 0x0, 0x0, 0x0, 0x0,
0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0,
0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0,
0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0x0,
0xffffffffffffffff, 0x0)
r1 = socket$alg(0x26, 0x5, 0x0)
getrusage(0x0, 0x0)
bind(r1, &(0x7f00000001c0)=@alg={0x26, 'hash\x00', 0x0, 0x0,
'sha256-ssse3\x00'}, 0x80)
r2 = accept(r1, 0x0, 0x0)
r3 = accept4$unix(r2, 0x0, 0x0, 0x0)
r4 = dup3(r3, r0, 0x0)
fchownat(r4, &(0x7f00000000c0)='\x00', 0x0, 0x0, 0x1000)

Fixes: 6d8c50dcb0 ("socket: close race condition between sock_close() and sockfs_setattr()")
Signed-off-by: Mao Wenan <maowenan@huawei.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2019-02-18 12:01:24 -08:00
Kuninori Morimoto
19dd077777
ASoC: simple-card: fixup refcount_t underflow
commit da215354eb ("ASoC: simple-card: merge simple-scu-card")
merged simple-card and simple-scu-card. Then it had refcount
underflow bug. This patch fixup it.
We will get below error without this patch.

	OF: ERROR: Bad of_node_put() on /sound
	CPU: 3 PID: 237 Comm: kworker/3:1 Not tainted 5.0.0-rc6+ #1514
	Hardware name: Renesas H3ULCB Kingfisher board based on r8a7795 ES2.0+ (DT)
	Workqueue: events deferred_probe_work_func
	Call trace:
	 dump_backtrace+0x0/0x150
	 show_stack+0x24/0x30
	 dump_stack+0xb0/0xec
	 of_node_release+0xd0/0xd8
	 kobject_put+0x74/0xe8
	 of_node_put+0x24/0x30
	 __of_get_next_child+0x50/0x70
	 of_get_next_child+0x40/0x68
	 asoc_simple_card_probe+0x604/0x730
	 platform_drv_probe+0x58/0xa8
	 ...
Reported-by: Vicente Bergas <vicencb@gmail.com>
Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>

Signed-off-by: Mark Brown <broonie@kernel.org>
2019-02-18 18:36:52 +00:00
Bard liao
304017d31d
ASoC: topology: free created components in tplg load error
Topology resources are no longer needed if any element failed to load.

Signed-off-by: Bard liao <yung-chuan.liao@linux.intel.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
2019-02-18 18:21:49 +00:00
Linus Torvalds
301e361072 - API: Fix build breakge by exporting the function mbox_flush
- BRCM: Fix FlexRM ring flush timeout issue
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Merge tag 'mailbox-fixes-v5.0-rc7' of git://git.linaro.org/landing-teams/working/fujitsu/integration

Pull mailbox fixes from Jassi Brar:

 - API: Fix build breakge by exporting the function mbox_flush

 - BRCM: Fix FlexRM ring flush timeout issue

* tag 'mailbox-fixes-v5.0-rc7' of git://git.linaro.org/landing-teams/working/fujitsu/integration:
  mailbox: bcm-flexrm-mailbox: Fix FlexRM ring flush timeout issue
  mailbox: Export mbox_flush()
2019-02-18 10:03:19 -08:00
Linus Torvalds
3ddc14e25e A few ARM fixes:
- Dietmar Eggemann noticed an issue with IRQ migration during CPU hotplug
   stress testing.
 - Mathieu Desnoyers noticed that a previous fix broke optimised kprobes.
 - Robin Murphy noticed a case where we were not clearing the dma_ops.
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Merge tag 'for-linus' of git://git.armlinux.org.uk/~rmk/linux-arm

Pull ARM fixes from Russell King:
 "A few ARM fixes:

   - Dietmar Eggemann noticed an issue with IRQ migration during CPU
     hotplug stress testing.

   - Mathieu Desnoyers noticed that a previous fix broke optimised
     kprobes.

   - Robin Murphy noticed a case where we were not clearing the dma_ops"

* tag 'for-linus' of git://git.armlinux.org.uk/~rmk/linux-arm:
  ARM: 8835/1: dma-mapping: Clear DMA ops on teardown
  ARM: 8834/1: Fix: kprobes: optimized kprobes illegal instruction
  ARM: 8824/1: fix a migrating irq bug when hotplug cpu
2019-02-18 09:59:28 -08:00
Linus Torvalds
10f4902173 Two more tracing fixes
- Have kprobes not use copy_from_user() to access kernel addresses,
    because kprobes can legitimately poke at bad kernel memory, which
    will fault. Copy from user code should never fault in kernel space.
    Using probe_mem_read() can handle kernel address space faulting.
 
  - Put back the entries counter in the tracing output that was accidentally
    removed.
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Merge tag 'trace-v5.0-rc4-3' of git://git.kernel.org/pub/scm/linux/kernel/git/rostedt/linux-trace

Pull tracing fixes from Steven Rostedt:
 "Two more tracing fixes

   - Have kprobes not use copy_from_user() to access kernel addresses,
     because kprobes can legitimately poke at bad kernel memory, which
     will fault. Copy from user code should never fault in kernel space.
     Using probe_mem_read() can handle kernel address space faulting.

   - Put back the entries counter in the tracing output that was
     accidentally removed"

* tag 'trace-v5.0-rc4-3' of git://git.kernel.org/pub/scm/linux/kernel/git/rostedt/linux-trace:
  tracing: Fix number of entries in trace header
  kprobe: Do not use uaccess functions to access kernel memory that can fault
2019-02-18 09:40:16 -08:00
Rayagonda Kokatanur
d7bf31a0f8 mailbox: bcm-flexrm-mailbox: Fix FlexRM ring flush timeout issue
RING_CONTROL reg was not written due to wrong address, hence all
the subsequent ring flush was timing out.

Fixes: a371c10ea4 ("mailbox: bcm-flexrm-mailbox: Fix FlexRM ring flush sequence")

Signed-off-by: Rayagonda Kokatanur <rayagonda.kokatanur@broadcom.com>
Signed-off-by: Ray Jui <ray.jui@broadcom.com>
Reviewed-by: Scott Branden <scott.branden@broadcom.com>
Signed-off-by: Jassi Brar <jaswinder.singh@linaro.org>
2019-02-18 10:40:58 -06:00
Thierry Reding
4f0557795e mailbox: Export mbox_flush()
The mbox_flush() function can be used by drivers that are built as
modules, so the function needs to be exported.

Reported-by: Mark Brown <broonie@kernel.org>
Signed-off-by: Thierry Reding <treding@nvidia.com>
Signed-off-by: Jassi Brar <jaswinder.singh@linaro.org>
2019-02-18 10:39:17 -06:00
Linus Torvalds
a3b22b9f11 Linux 5.0-rc7 2019-02-17 18:46:40 -08:00
David S. Miller
254a1a2b2c Merge branch 'netdev-page_frag_alloc-fixes'
Alexander Duyck says:

====================
Address recent issues found in netdev page_frag_alloc usage

This patch set addresses a couple of issues that I had pointed out to Jann
Horn in response to a recent patch submission.

The first issue is that I wanted to avoid the need to read/modify/write the
size value in order to generate the value for pagecnt_bias. Instead we can
just use a fixed constant which reduces the need for memory read operations
and the overall number of instructions to update the pagecnt bias values.

The other, and more important issue is, that apparently we were letting tun
access the napi_alloc_cache indirectly through netdev_alloc_frag and as a
result letting it create unaligned accesses via unaligned allocations. In
order to prevent this I have added a call to SKB_DATA_ALIGN for the fragsz
field so that we will keep the offset in the napi_alloc_cache
SMP_CACHE_BYTES aligned.
====================

Signed-off-by: David S. Miller <davem@davemloft.net>
2019-02-17 15:48:43 -08:00
Alexander Duyck
3bed3cc415 net: Do not allocate page fragments that are not skb aligned
This patch addresses the fact that there are drivers, specifically tun,
that will call into the network page fragment allocators with buffer sizes
that are not cache aligned. Doing this could result in data alignment
and DMA performance issues as these fragment pools are also shared with the
skb allocator and any other devices that will use napi_alloc_frags or
netdev_alloc_frags.

Fixes: ffde7328a3 ("net: Split netdev_alloc_frag into __alloc_page_frag and add __napi_alloc_frag")
Reported-by: Jann Horn <jannh@google.com>
Signed-off-by: Alexander Duyck <alexander.h.duyck@linux.intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2019-02-17 15:48:43 -08:00
Alexander Duyck
8644772637 mm: Use fixed constant in page_frag_alloc instead of size + 1
This patch replaces the size + 1 value introduced with the recent fix for 1
byte allocs with a constant value.

The idea here is to reduce code overhead as the previous logic would have
to read size into a register, then increment it, and write it back to
whatever field was being used. By using a constant we can avoid those
memory reads and arithmetic operations in favor of just encoding the
maximum value into the operation itself.

Fixes: 2c2ade8174 ("mm: page_alloc: fix ref bias in page_frag_alloc() for 1-byte allocs")
Signed-off-by: Alexander Duyck <alexander.h.duyck@linux.intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2019-02-17 15:48:43 -08:00
David S. Miller
e09c6a4ec1 Merge branch 'tcp-fix-possible-crash-in-tcp_v4_err'
Eric Dumazet says:

====================
tcp: fix possible crash in tcp_v4_err()

soukjin bae reported a crash in tcp_v4_err() that we
root caused to a missing initialization.

Second patch adds a sanity check in tcp_v4_err() to avoid
future potential problems. Ignoring an ICMP message
is probably better than crashing a machine.
====================

Signed-off-by: David S. Miller <davem@davemloft.net>
2019-02-17 15:46:59 -08:00
Eric Dumazet
2c4cc97123 tcp: tcp_v4_err() should be more careful
ICMP handlers are not very often stressed, we should
make them more resilient to bugs that might surface in
the future.

If there is no packet in retransmit queue, we should
avoid a NULL deref.

Signed-off-by: Eric Dumazet <edumazet@google.com>
Reported-by: soukjin bae <soukjin.bae@samsung.com>
Acked-by: Neal Cardwell <ncardwell@google.com>
Acked-by: Soheil Hassas Yeganeh <soheil@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2019-02-17 15:46:58 -08:00
Eric Dumazet
04c03114be tcp: clear icsk_backoff in tcp_write_queue_purge()
soukjin bae reported a crash in tcp_v4_err() handling
ICMP_DEST_UNREACH after tcp_write_queue_head(sk)
returned a NULL pointer.

Current logic should have prevented this :

  if (seq != tp->snd_una  || !icsk->icsk_retransmits ||
      !icsk->icsk_backoff || fastopen)
      break;

Problem is the write queue might have been purged
and icsk_backoff has not been cleared.

Signed-off-by: Eric Dumazet <edumazet@google.com>
Reported-by: soukjin bae <soukjin.bae@samsung.com>
Acked-by: Neal Cardwell <ncardwell@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2019-02-17 15:46:58 -08:00
Alexey Khoroshilov
e928b5d6b7 net: mv643xx_eth: disable clk on error path in mv643xx_eth_shared_probe()
If mv643xx_eth_shared_of_probe() fails, mv643xx_eth_shared_probe()
leaves clk enabled.

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>
2019-02-17 15:44:26 -08:00
Beniamino Galvani
97dc47a130 qmi_wwan: apply SET_DTR quirk to Sierra WP7607
The 1199:68C0 USB ID is reused by Sierra WP7607 which requires the DTR
quirk to be detected. Apply QMI_QUIRK_SET_DTR unconditionally as
already done for other IDs shared between different devices.

Signed-off-by: Beniamino Galvani <bgalvani@redhat.com>
Acked-by: Bjørn Mork <bjorn@mork.no>
Signed-off-by: David S. Miller <davem@davemloft.net>
2019-02-17 15:40:27 -08:00
Alexandre Torgue
4012e7d09d net: stmmac: handle endianness in dwmac4_get_timestamp
GMAC IP is little-endian and used on several kind of CPU (big or little
endian). Main callbacks functions of the stmmac drivers take care about
it. It was not the case for dwmac4_get_timestamp function.

Fixes: ba1ffd74df ("stmmac: fix PTP support for GMAC4")
Signed-off-by: Alexandre Torgue <alexandre.torgue@st.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2019-02-17 15:37:40 -08:00
Petr Vorel
31a1b8d528 doc: Mention MSG_ZEROCOPY implementation for UDP
MSG_ZEROCOPY implementation for UDP was merged in v5.0,
6e360f7331 ("Merge branch 'udp-msg_zerocopy'").

Signed-off-by: Petr Vorel <pvorel@suse.cz>
Signed-off-by: David S. Miller <davem@davemloft.net>
2019-02-17 15:30:02 -08:00
Martin Blumenstingl
c17abcfa93 pinctrl: meson: meson8b: fix the sdxc_a data 1..3 pins
Fix the mismatch between the "sdxc_d13_1_a" pin group definition from
meson8b_cbus_groups and the entry in sdxc_a_groups ("sdxc_d0_13_1_a").
This makes it possible to use "sdxc_d13_1_a" in device-tree files to
route the MMC data 1..3 pins to GPIOX_1..3.

Fixes: 0fefcb6876 ("pinctrl: Add support for Meson8b")
Signed-off-by: Martin Blumenstingl <martin.blumenstingl@googlemail.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2019-02-17 22:24:32 +01:00
Petr Machata
289460404f mlxsw: __mlxsw_sp_port_headroom_set(): Fix a use of local variable
The function-local variable "delay" enters the loop interpreted as delay
in bits. However, inside the loop it gets overwritten by the result of
mlxsw_sp_pg_buf_delay_get(), and thus leaves the loop as quantity in
cells. Thus on second and further loop iterations, the headroom for a
given priority is configured with a wrong size.

Fix by introducing a loop-local variable, delay_cells. Rename thres to
thres_cells for consistency.

Fixes: f417f04da5 ("mlxsw: spectrum: Refactor port buffer configuration")
Signed-off-by: Petr Machata <petrm@mellanox.com>
Acked-by: Jiri Pirko <jiri@mellanox.com>
Signed-off-by: Ido Schimmel <idosch@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2019-02-17 10:13:46 -08:00
Linus Torvalds
2fee036af0 Merge branch 'efi-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull EFI fixes from Ingo Molnar:
 "This tree reverts a GICv3 commit (which was broken) and fixes it in
  another way, by adding a memblock build-time entries quirk for ARM64"

* 'efi-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
  efi/arm: Revert "Defer persistent reservations until after paging_init()"
  arm64, mm, efi: Account for GICv3 LPI tables in static memblock reserve table
2019-02-17 09:22:01 -08:00
Linus Torvalds
8d33316d52 Merge branch 'x86-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull x86 fixes from Ingo Molnar:
 "Three changes:

   - An UV fix/quirk to pull UV BIOS calls into the efi_runtime_lock
     locking regime. (This done by aliasing __efi_uv_runtime_lock to
     efi_runtime_lock, which should make the quirk nature obvious and
     maintain the general policy that the EFI lock (name...) isn't
     exposed to drivers.)

   - Our version of MAGA: Make a.out Great Again.

   - Add a new Intel model name enumerator to an upstream header to help
     reduce dependencies going forward"

* 'x86-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
  x86/platform/UV: Use efi_runtime_lock to serialise BIOS calls
  x86/CPU: Add Icelake model number
  x86/a.out: Clear the dump structure initially
2019-02-17 08:44:38 -08:00
Linus Torvalds
dd6f29da69 Merge branch 'perf-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull perf fixes from Ingo Molnar:
 "Two fixes on the kernel side: fix an over-eager condition that failed
  larger perf ring-buffer sizes, plus fix crashes in the Intel BTS code
  for a corner case, found by fuzzing"

* 'perf-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
  perf/core: Fix impossible ring-buffer sizes warning
  perf/x86: Add check_period PMU callback
2019-02-17 08:38:13 -08:00
Linus Torvalds
c5f1ac5e9a powerpc fixes for 5.0 #5
Just one fix, for pgd/pud_present() which were broken on big endian since v4.20,
 leading to possible data corruption.
 
 Thanks to:
   Aneesh Kumar K.V., Erhard F., Jan Kara.
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Merge tag 'powerpc-5.0-5' of git://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linux

Pull powerpc fix from Michael Ellerman:
 "Just one fix, for pgd/pud_present() which were broken on big endian
  since v4.20, leading to possible data corruption.

  Thanks to: Aneesh Kumar K.V., Erhard F., Jan Kara"

* tag 'powerpc-5.0-5' of git://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linux:
  powerpc/64s: Fix possible corruption on big endian due to pgd/pud_present()
2019-02-17 08:36:21 -08:00
Linus Torvalds
0513ebc33e arch/csky patches for 5.0-rc6
Here is some fixup patches for 5.0-rc6:
 
 Guo Ren (5):
       csky: Fixup _PAGE_GLOBAL bit for 610 tlb entry
       csky: Fixup wrong pt_regs size
       csky: coding convention: Use task_stack_page
       csky: Fixup io-range page attribute for mmap("/dev/mem")
       csky: Fixup dead loop in show_stack
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Merge tag 'csky-for-linus-5.0-rc6' of git://github.com/c-sky/csky-linux

Pull arch/csky fixes from Guo Ren:
 "Here are some fixup patches for 5.0-rc6"

* tag 'csky-for-linus-5.0-rc6' of git://github.com/c-sky/csky-linux:
  csky: Fixup dead loop in show_stack
  csky: Fixup io-range page attribute for mmap("/dev/mem")
  csky: coding convention: Use task_stack_page
  csky: Fixup wrong pt_regs size
  csky: Fixup _PAGE_GLOBAL bit for 610 tlb entry
2019-02-17 08:34:10 -08:00
Linus Torvalds
1653c2f2da Merge branch 'i2c/for-current' of git://git.kernel.org/pub/scm/linux/kernel/git/wsa/linux
Pull i2c fixes from Wolfram Sang:
 "Two more driver bugfixes"

* 'i2c/for-current' of git://git.kernel.org/pub/scm/linux/kernel/git/wsa/linux:
  i2c: bcm2835: Clear current buffer pointers and counts after a transfer
  i2c: cadence: Fix the hold bit setting
2019-02-17 08:32:25 -08:00
Linus Torvalds
b8c82b6a3a Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input
Pull input fixes from Dmitry Torokhov:

 - tweaks to Elan drivers (both PS/2 and I2C) to support new devices.
   Also revert of one of IDs as that device should really be driven by
   i2c-hid + hid-multitouch

 - a few drivers have been switched to set_brightness_blocking() call
   because they either were sleeping the their set_brightness()
   implementation or used workqueue but were not canceling it on unbind.

 - ps2-gpio and matrix_keypad needed to [properly] flush their works to
   avoid potential use-after-free on unbind.

 - other miscellaneous fixes.

* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input:
  Input: elan_i2c - add ACPI ID for touchpad in Lenovo V330-15ISK
  Input: st-keyscan - fix potential zalloc NULL dereference
  Input: apanel - switch to using brightness_set_blocking()
  Revert "Input: elan_i2c - add ACPI ID for touchpad in ASUS Aspire F5-573G"
  Input: qt2160 - switch to using brightness_set_blocking()
  Input: matrix_keypad - use flush_delayed_work()
  Input: ps2-gpio - flush TX work when closing port
  Input: cap11xx - switch to using set_brightness_blocking()
  Input: elantech - enable 3rd button support on Fujitsu CELSIUS H780
  Input: bma150 - register input device after setting private data
  Input: pwm-vibra - stop regulator after disabling pwm, not before
  Input: pwm-vibra - prevent unbalanced regulator
  Input: snvs_pwrkey - allow selecting driver for i.MX 7D
2019-02-17 08:30:35 -08:00
Linus Torvalds
ed0a0ec98f A somewhat bigger ARM update, and the usual smattering
of x86 bug fixes.
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Merge tag 'for-linus' of git://git.kernel.org/pub/scm/virt/kvm/kvm

Pull KVM fixes from Paolo Bonzini:
 "A somewhat bigger ARM update, and the usual smattering of x86 bug
  fixes"

* tag 'for-linus' of git://git.kernel.org/pub/scm/virt/kvm/kvm:
  kvm: vmx: Fix entry number check for add_atomic_switch_msr()
  KVM: x86: Recompute PID.ON when clearing PID.SN
  KVM: nVMX: Restore a preemption timer consistency check
  x86/kvm/nVMX: read from MSR_IA32_VMX_PROCBASED_CTLS2 only when it is available
  KVM: arm64: Forbid kprobing of the VHE world-switch code
  KVM: arm64: Relax the restriction on using stage2 PUD huge mapping
  arm: KVM: Add missing kvm_stage2_has_pmd() helper
  KVM: arm/arm64: vgic: Always initialize the group of private IRQs
  arm/arm64: KVM: Don't panic on failure to properly reset system registers
  arm/arm64: KVM: Allow a VCPU to fully reset itself
  KVM: arm/arm64: Reset the VCPU without preemption and vcpu state loaded
  arm64: KVM: Don't generate UNDEF when LORegion feature is present
  KVM: arm/arm64: vgic: Make vgic_cpu->ap_list_lock a raw_spinlock
  KVM: arm/arm64: vgic: Make vgic_dist->lpi_list_lock a raw_spinlock
  KVM: arm/arm64: vgic: Make vgic_irq->irq_lock a raw_spinlock
2019-02-17 08:28:49 -08:00