Commit graph

932,869 commits

Author SHA1 Message Date
Thomas Bogendoerfer
299b610117 rtc: ds1685: add indirect access method and remove plat_read/plat_write
SGI Octane (IP30) doesn't have RTC register directly mapped into CPU
address space, but accesses RTC registers with an address and data
register.  This is now supported by additional access functions, which
are selected by a new field in platform data. Removed plat_read/plat_write
since there is no user and their usage could introduce lifetime issue,
when functions are placed in different modules.

Signed-off-by: Thomas Bogendoerfer <tbogendoerfer@suse.de>
Acked-by: Joshua Kinard <kumba@gentoo.org>
Reviewed-by: Joshua Kinard <kumba@gentoo.org>
Link: https://lore.kernel.org/r/20191014214621.25257-1-tbogendoerfer@suse.de
Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
2019-10-16 10:39:00 +02:00
Johan Hovold
bc25770f00 USB: serial: ti_usb_3410_5052: clean up serial data access
Use the tdev pointer directly instead of going through the port data
when accessing the serial data in close().

Signed-off-by: Johan Hovold <johan@kernel.org>
2019-10-16 10:29:23 +02:00
Johan Hovold
6f1d1dc8d5 USB: serial: ti_usb_3410_5052: fix port-close races
Fix races between closing a port and opening or closing another port on
the same device which could lead to a failure to start or stop the
shared interrupt URB. The latter could potentially cause a
use-after-free or worse in the completion handler on driver unbind.

Fixes: 1da177e4c3 ("Linux-2.6.12-rc2")
Cc: stable <stable@vger.kernel.org>
Signed-off-by: Johan Hovold <johan@kernel.org>
2019-10-16 10:29:11 +02:00
Lowry Li (Arm Technology China)
f9204ad9cd drm/komeda: Set output color depth for output
Set color_depth according to connector->bpc.

Changes since v1:
 - Fixed min_bpc is effectively set but not used in
komeda_crtc_get_color_config().

Changes since v2:
 - Align the code.

Signed-off-by: Lowry Li (Arm Technology China) <lowry.li@arm.com>
Reviewed-by: Mihail Atanassov <mihail.atanassov@arm.com>
Reviewed-by: James Qian Wang (Arm Technology China) <james.qian.wang@arm.com>
Signed-off-by: james qian wang (Arm Technology China) <james.qian.wang@arm.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20191012065030.12691-1-lowry.li@arm.com
2019-10-16 16:12:38 +08:00
Kamel Bouhara
82822c6859 ARM: dts: at91: add Overkiz KIZBOX3 board
Add a common DT include file for the Kizbox3 boards.
Add the devicetree for the Kizbox3 HS board.

Signed-off-by: Kévin RAYMOND <k.raymond@overkiz.com>
Signed-off-by: Mickael GARDET <m.gardet@overkiz.com>
Signed-off-by: Kamel Bouhara <kamel.bouhara@bootlin.com>
Link: https://lore.kernel.org/r/20191011125022.16329-4-kamel.bouhara@bootlin.com
Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
2019-10-16 10:06:55 +02:00
Kamel Bouhara
caa1e65783 dt-bindings: arm: at91: Document Kizbox3 HS board binding
Document devicetree binding of SAMA5D27 Kizbox3 HS board from Overkiz
SAS.

Signed-off-by: Kamel Bouhara <kamel.bouhara@bootlin.com>
Link: https://lore.kernel.org/r/20191011125022.16329-3-kamel.bouhara@bootlin.com
Reviewed-by: Rob Herring <robh@kernel.org>
Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
2019-10-16 10:06:10 +02:00
Kamel Bouhara
d9bd62baf0 dt-bindings: Add vendor prefix for Overkiz SAS
Overkiz is a smarthome solutions provider, more information on:
https://www.overkiz.com

Signed-off-by: Kamel Bouhara <kamel.bouhara@bootlin.com>
Link: https://lore.kernel.org/r/20191011125022.16329-2-kamel.bouhara@bootlin.com
Acked-by: Rob Herring <robh@kernel.org>
Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
2019-10-16 10:05:27 +02:00
Lowry Li (Arm Technology China)
f15886fa7d drm/komeda: Adds layer horizontal input size limitation check for D71
Adds maximum line size check according to the AFBC decoder limitation
and special Line size limitation(2046) for format: YUV420_10BIT and X0L2.

Signed-off-by: Lowry Li (Arm Technology China) <lowry.li@arm.com>
Reviewed-by: Liviu Dudau <liviu.dudau@arm.com>
Signed-off-by: james qian wang (Arm Technology China) <james.qian.wang@arm.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20190924080022.19250-3-lowry.li@arm.com
2019-10-16 16:05:00 +08:00
Lowry Li (Arm Technology China)
2b2510da43 drm/komeda: Add line size support
On D71, we are using the global line size. From D32, every
component have a line size register to indicate the fifo size.

So this patch is to set line size support and do the line size
check.

Signed-off-by: Lowry Li (Arm Technology China) <lowry.li@arm.com>
Reviewed-by: Liviu Dudau <liviu.dudau@arm.com>
Reviewed-by: James Qian Wang (Arm Technology China) <james.qian.wang@arm.com>
Signed-off-by: james qian wang (Arm Technology China) <james.qian.wang@arm.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20190924080022.19250-2-lowry.li@arm.com
2019-10-16 16:04:56 +08:00
Thomas Zimmermann
7d79aa8628 drm/vboxvideo: Replace struct vram_framebuffer with generic implemenation
The vboxvideo driver's struct vram_framebuffer stores a DRM framebuffer
with an assiciated GEM object. This functionality is also provided by
generic code. Switch vboxvideo over.

Signed-off-by: Thomas Zimmermann <tzimmermann@suse.de>
Acked-by: Sam Ravnborg <sam@ravnborg.org>
Link: https://patchwork.freedesktop.org/patch/msgid/20191011134808.3955-4-tzimmermann@suse.de
2019-10-16 09:58:59 +02:00
Thomas Zimmermann
1a74ccfac5 drm/vboxvideo: Switch to drm_atomic_helper_dirty_fb()
The vboxvideo driver provides struct drm_framebuffer_funcs.dirty_fb from
its own implementation. Switch over to drm_atomic_helper_dirty_fb() and
handle screen updates in the primary plane's atomic_update function.

With dirty_fb out of the way, we can further replace struct vbox_frammebuffer
with generic code.

Signed-off-by: Thomas Zimmermann <tzimmermann@suse.de>
Acked-by: Sam Ravnborg <sam@ravnborg.org>
Link: https://patchwork.freedesktop.org/patch/msgid/20191011134808.3955-3-tzimmermann@suse.de
2019-10-16 09:58:53 +02:00
Thomas Zimmermann
2695eae1f6 drm/vboxvideo: Switch to generic fbdev emulation
There's nothing special about vboxvideo's fbdev emulation that is
not provided by the generic implementation. Switch over and remove
the driver's code.

Signed-off-by: Thomas Zimmermann <tzimmermann@suse.de>
Acked-by: Sam Ravnborg <sam@ravnborg.org>
Link: https://patchwork.freedesktop.org/patch/msgid/20191011134808.3955-2-tzimmermann@suse.de
2019-10-16 09:58:30 +02:00
Ezequiel Garcia
42bb97b80f iommu: rockchip: Free domain on .domain_free
IOMMU domain resource life is well-defined, managed
by .domain_alloc and .domain_free.

Therefore, domain-specific resources shouldn't be tied to
the device life, but instead to its domain.

Signed-off-by: Ezequiel Garcia <ezequiel@collabora.com>
Reviewed-by: Robin Murphy <robin.murphy@arm.com>
Acked-by: Heiko Stuebner <heiko@sntech.de>
Signed-off-by: Joerg Roedel <jroedel@suse.de>
2019-10-16 09:43:07 +02:00
Brian Norris
89dca86d29 rtw88: mark rtw_fw_hdr __packed
The use of u8 and __le16 in this struct assumes that it's going to be
packed to byte alignment. C doesn't guarantee that, so we should mark
this __packed.

Fixes: cc20a71398 ("rtw88: use struct rtw_fw_hdr to access firmware header")
Cc: Ping-Ke Shih <pkshih@realtek.com>
Signed-off-by: Brian Norris <briannorris@chromium.org>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2019-10-16 10:35:25 +03:00
Max Filippov
775fd6bfef xtensa: fix change_bit in exclusive access option
change_bit implementation for XCHAL_HAVE_EXCLUSIVE case changes all bits
except the one required due to copy-paste error from clear_bit.

Cc: stable@vger.kernel.org # v5.2+
Fixes: f7c34874f0 ("xtensa: add exclusive atomics support")
Signed-off-by: Max Filippov <jcmvbkbc@gmail.com>
2019-10-16 00:14:33 -07:00
Zhang Lixu
16ff7bf6db HID: intel-ish-hid: fix wrong error handling in ishtp_cl_alloc_tx_ring()
When allocating tx ring buffers failed, should free tx buffers, not rx buffers.

Signed-off-by: Zhang Lixu <lixu.zhang@intel.com>
Acked-by: Srinivas Pandruvada <srinivas.pandruvada@linux.intel.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
2019-10-16 08:26:55 +02:00
Greentime Hu
5bf4e52ff0 RISC-V: fix virtual address overlapped in FIXADDR_START and VMEMMAP_START
This patch fixes the virtual address layout in pgtable.h.  The virtual
address of FIXADDR_START and VMEMMAP_START should not be overlapped.

Fixes: d95f1a542c ("RISC-V: Implement sparsemem")
Signed-off-by: Greentime Hu <greentime.hu@sifive.com>
Reviewed-by: Anup Patel <anup@brainfault.org>
[paul.walmsley@sifive.com: fixed patch description]
Signed-off-by: Paul Walmsley <paul.walmsley@sifive.com>
2019-10-15 22:47:41 -07:00
Pierre-Louis Bossart
2948d19216 soundwire: intel: remove X86 dependency
This is not needed and may generate unmet dependencies when
COMPILE_TEST is used for SOF.

ACPI is required, and should be tested when selecting this option.

Signed-off-by: Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com>
Link: https://lore.kernel.org/r/20190916185739.32184-3-pierre-louis.bossart@linux.intel.com
Signed-off-by: Vinod Koul <vkoul@kernel.org>
2019-10-16 10:36:29 +05:30
Pierre-Louis Bossart
df72b71921 soundwire: intel: add missing headers for cross-compilation
readl/writel and ioread32 are used without the relevant headers, fix.

Signed-off-by: Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com>
Link: https://lore.kernel.org/r/20190916185739.32184-2-pierre-louis.bossart@linux.intel.com
Signed-off-by: Vinod Koul <vkoul@kernel.org>
2019-10-16 10:36:29 +05:30
Valentin Vidic
77b6d09f4a net: usb: sr9800: fix uninitialized local variable
Make sure res does not contain random value if the call to
sr_read_cmd fails for some reason.

Reported-by: syzbot+f1842130bbcfb335bac1@syzkaller.appspotmail.com
Signed-off-by: Valentin Vidic <vvidic@valentin-vidic.from.hr>
Signed-off-by: David S. Miller <davem@davemloft.net>
2019-10-15 21:02:12 -07:00
Florian Fainelli
efb86fede9 net: bcmgenet: Fix RGMII_MODE_EN value for GENET v1/2/3
The RGMII_MODE_EN bit value was 0 for GENET versions 1 through 3, and
became 6 for GENET v4 and above, account for that difference.

Fixes: aa09677cba ("net: bcmgenet: add MDIO routines")
Signed-off-by: Florian Fainelli <f.fainelli@gmail.com>
Acked-by: Doug Berger <opendmb@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2019-10-15 21:00:12 -07:00
Florian Fainelli
d9f45ab9e6 net: bcmgenet: Add a shutdown callback
Make sure that we completely quiesce the network device, including its
DMA to avoid having it continue to receive packets while there is no
software alive to service those.

Signed-off-by: Florian Fainelli <f.fainelli@gmail.com>
Acked-by: Doug Berger <opendmb@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2019-10-15 20:59:28 -07:00
Ben Dooks (Codethink)
bad28d889c net: stmmac: make tc_flow_parsers static
The tc_flow_parsers is not used outside of the driver, so
make it static to avoid the following sparse warning:

drivers/net/ethernet/stmicro/stmmac/stmmac_tc.c:516:3: warning: symbol 'tc_flow_parsers' was not declared. Should it be static?

Signed-off-by: Ben Dooks <ben.dooks@codethink.co.uk>
Signed-off-by: David S. Miller <davem@davemloft.net>
2019-10-15 20:56:53 -07:00
Ben Dooks (Codethink)
539825a536 davinci_cpdma: make cpdma_chan_split_pool static
The cpdma_chan_split_pool() function is not used outside of
the driver, so make it static to avoid the following sparse
warning:

drivers/net/ethernet/ti/davinci_cpdma.c:725:5: warning: symbol 'cpdma_chan_split_pool' was not declared. Should it be static?

Signed-off-by: Ben Dooks <ben.dooks@codethink.co.uk>
Signed-off-by: David S. Miller <davem@davemloft.net>
2019-10-15 20:56:14 -07:00
Thomas Bogendoerfer
61c1d33daf net: i82596: fix dma_alloc_attr for sni_82596
Commit 7f683b9204 ("i825xx: switch to switch to dma_alloc_attrs")
switched dma allocation over to dma_alloc_attr, but didn't convert
the SNI part to request consistent DMA memory. This broke sni_82596
since driver doesn't do dma_cache_sync for performance reasons.
Fix this by using different DMA_ATTRs for lasi_82596 and sni_82596.

Fixes: 7f683b9204 ("i825xx: switch to switch to dma_alloc_attrs")
Signed-off-by: Thomas Bogendoerfer <tbogendoerfer@suse.de>
Signed-off-by: David S. Miller <davem@davemloft.net>
2019-10-15 20:50:05 -07:00
Russell King
554032cdfb net: phylink: use more linkmode_*
Use more linkmode_* helpers rather than open-coding the bitmap
operations.

Signed-off-by: Russell King <rmk+kernel@armlinux.org.uk>
Reviewed-by: Andrew Lunn <andrew@lunn.ch>
Signed-off-by: David S. Miller <davem@davemloft.net>
2019-10-15 20:40:06 -07:00
Xin Long
63dfb7938b sctp: change sctp_prot .no_autobind with true
syzbot reported a memory leak:

  BUG: memory leak, unreferenced object 0xffff888120b3d380 (size 64):
  backtrace:

    [...] slab_alloc mm/slab.c:3319 [inline]
    [...] kmem_cache_alloc+0x13f/0x2c0 mm/slab.c:3483
    [...] sctp_bucket_create net/sctp/socket.c:8523 [inline]
    [...] sctp_get_port_local+0x189/0x5a0 net/sctp/socket.c:8270
    [...] sctp_do_bind+0xcc/0x200 net/sctp/socket.c:402
    [...] sctp_bindx_add+0x4b/0xd0 net/sctp/socket.c:497
    [...] sctp_setsockopt_bindx+0x156/0x1b0 net/sctp/socket.c:1022
    [...] sctp_setsockopt net/sctp/socket.c:4641 [inline]
    [...] sctp_setsockopt+0xaea/0x2dc0 net/sctp/socket.c:4611
    [...] sock_common_setsockopt+0x38/0x50 net/core/sock.c:3147
    [...] __sys_setsockopt+0x10f/0x220 net/socket.c:2084
    [...] __do_sys_setsockopt net/socket.c:2100 [inline]

It was caused by when sending msgs without binding a port, in the path:
inet_sendmsg() -> inet_send_prepare() -> inet_autobind() ->
.get_port/sctp_get_port(), sp->bind_hash will be set while bp->port is
not. Later when binding another port by sctp_setsockopt_bindx(), a new
bucket will be created as bp->port is not set.

sctp's autobind is supposed to call sctp_autobind() where it does all
things including setting bp->port. Since sctp_autobind() is called in
sctp_sendmsg() if the sk is not yet bound, it should have skipped the
auto bind.

THis patch is to avoid calling inet_autobind() in inet_send_prepare()
by changing sctp_prot .no_autobind with true, also remove the unused
.get_port.

Reported-by: syzbot+d44f7bbebdea49dbc84a@syzkaller.appspotmail.com
Signed-off-by: Xin Long <lucien.xin@gmail.com>
Acked-by: Marcelo Ricardo Leitner <marcelo.leitner@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2019-10-15 20:37:51 -07:00
Roman Mashak
4980b2c4fe tc-testing: updated pedit test cases
Added TDC test cases for Ethernet LAYERED_OP operations:
- set single source Ethernet MAC
- set single destination Ethernet MAC
- set single invalid destination Ethernet MAC
- set Ethernet type
- invert source/destination/type fields
- add operation on Ethernet type field

Signed-off-by: Roman Mashak <mrv@mojatatu.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2019-10-15 20:35:18 -07:00
Florian Fainelli
d033716331 net: bcmgenet: Generate a random MAC if none is valid
Instead of having a hard failure and stopping the driver's probe
routine, generate a random Ethernet MAC address to keep going.

Signed-off-by: Florian Fainelli <f.fainelli@gmail.com>
Acked-by: Doug Berger <opendmb@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2019-10-15 20:33:45 -07:00
Vinicius Costa Gomes
28aa7c86c2 sched: etf: Fix ordering of packets with same txtime
When a application sends many packets with the same txtime, they may
be transmitted out of order (different from the order in which they
were enqueued).

This happens because when inserting elements into the tree, when the
txtime of two packets are the same, the new packet is inserted at the
left side of the tree, causing the reordering. The only effect of this
change should be that packets with the same txtime will be transmitted
in the order they are enqueued.

The application in question (the AVTP GStreamer plugin, still in
development) is sending video traffic, in which each video frame have
a single presentation time, the problem is that when packetizing,
multiple packets end up with the same txtime.

The receiving side was rejecting packets because they were being
received out of order.

Fixes: 25db26a913 ("net/sched: Introduce the ETF Qdisc")
Reported-by: Ederson de Souza <ederson.desouza@intel.com>
Signed-off-by: Vinicius Costa Gomes <vinicius.gomes@intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2019-10-15 20:32:04 -07:00
Eric Dumazet
39f13ea2f6 net: avoid potential infinite loop in tc_ctl_action()
tc_ctl_action() has the ability to loop forever if tcf_action_add()
returns -EAGAIN.

This special case has been done in case a module needed to be loaded,
but it turns out that tcf_add_notify() could also return -EAGAIN
if the socket sk_rcvbuf limit is hit.

We need to separate the two cases, and only loop for the module
loading case.

While we are at it, add a limit of 10 attempts since unbounded
loops are always scary.

syzbot repro was something like :

socket(PF_NETLINK, SOCK_RAW|SOCK_NONBLOCK, NETLINK_ROUTE) = 3
write(3, ..., 38) = 38
setsockopt(3, SOL_SOCKET, SO_RCVBUF, [0], 4) = 0
sendmsg(3, {msg_name(0)=NULL, msg_iov(1)=[{..., 388}], msg_controllen=0, msg_flags=0x10}, ...)

NMI backtrace for cpu 0
CPU: 0 PID: 1054 Comm: khungtaskd Not tainted 5.4.0-rc1+ #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
Call Trace:
 __dump_stack lib/dump_stack.c:77 [inline]
 dump_stack+0x172/0x1f0 lib/dump_stack.c:113
 nmi_cpu_backtrace.cold+0x70/0xb2 lib/nmi_backtrace.c:101
 nmi_trigger_cpumask_backtrace+0x23b/0x28b lib/nmi_backtrace.c:62
 arch_trigger_cpumask_backtrace+0x14/0x20 arch/x86/kernel/apic/hw_nmi.c:38
 trigger_all_cpu_backtrace include/linux/nmi.h:146 [inline]
 check_hung_uninterruptible_tasks kernel/hung_task.c:205 [inline]
 watchdog+0x9d0/0xef0 kernel/hung_task.c:289
 kthread+0x361/0x430 kernel/kthread.c:255
 ret_from_fork+0x24/0x30 arch/x86/entry/entry_64.S:352
Sending NMI from CPU 0 to CPUs 1:
NMI backtrace for cpu 1
CPU: 1 PID: 8859 Comm: syz-executor910 Not tainted 5.4.0-rc1+ #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
RIP: 0010:arch_local_save_flags arch/x86/include/asm/paravirt.h:751 [inline]
RIP: 0010:lockdep_hardirqs_off+0x1df/0x2e0 kernel/locking/lockdep.c:3453
Code: 5c 08 00 00 5b 41 5c 41 5d 5d c3 48 c7 c0 58 1d f3 88 48 ba 00 00 00 00 00 fc ff df 48 c1 e8 03 80 3c 10 00 0f 85 d3 00 00 00 <48> 83 3d 21 9e 99 07 00 0f 84 b9 00 00 00 9c 58 0f 1f 44 00 00 f6
RSP: 0018:ffff8880a6f3f1b8 EFLAGS: 00000046
RAX: 1ffffffff11e63ab RBX: ffff88808c9c6080 RCX: 0000000000000000
RDX: dffffc0000000000 RSI: 0000000000000000 RDI: ffff88808c9c6914
RBP: ffff8880a6f3f1d0 R08: ffff88808c9c6080 R09: fffffbfff16be5d1
R10: fffffbfff16be5d0 R11: 0000000000000003 R12: ffffffff8746591f
R13: ffff88808c9c6080 R14: ffffffff8746591f R15: 0000000000000003
FS:  00000000011e4880(0000) GS:ffff8880ae900000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: ffffffffff600400 CR3: 00000000a8920000 CR4: 00000000001406e0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 trace_hardirqs_off+0x62/0x240 kernel/trace/trace_preemptirq.c:45
 __raw_spin_lock_irqsave include/linux/spinlock_api_smp.h:108 [inline]
 _raw_spin_lock_irqsave+0x6f/0xcd kernel/locking/spinlock.c:159
 __wake_up_common_lock+0xc8/0x150 kernel/sched/wait.c:122
 __wake_up+0xe/0x10 kernel/sched/wait.c:142
 netlink_unlock_table net/netlink/af_netlink.c:466 [inline]
 netlink_unlock_table net/netlink/af_netlink.c:463 [inline]
 netlink_broadcast_filtered+0x705/0xb80 net/netlink/af_netlink.c:1514
 netlink_broadcast+0x3a/0x50 net/netlink/af_netlink.c:1534
 rtnetlink_send+0xdd/0x110 net/core/rtnetlink.c:714
 tcf_add_notify net/sched/act_api.c:1343 [inline]
 tcf_action_add+0x243/0x370 net/sched/act_api.c:1362
 tc_ctl_action+0x3b5/0x4bc net/sched/act_api.c:1410
 rtnetlink_rcv_msg+0x463/0xb00 net/core/rtnetlink.c:5386
 netlink_rcv_skb+0x177/0x450 net/netlink/af_netlink.c:2477
 rtnetlink_rcv+0x1d/0x30 net/core/rtnetlink.c:5404
 netlink_unicast_kernel net/netlink/af_netlink.c:1302 [inline]
 netlink_unicast+0x531/0x710 net/netlink/af_netlink.c:1328
 netlink_sendmsg+0x8a5/0xd60 net/netlink/af_netlink.c:1917
 sock_sendmsg_nosec net/socket.c:637 [inline]
 sock_sendmsg+0xd7/0x130 net/socket.c:657
 ___sys_sendmsg+0x803/0x920 net/socket.c:2311
 __sys_sendmsg+0x105/0x1d0 net/socket.c:2356
 __do_sys_sendmsg net/socket.c:2365 [inline]
 __se_sys_sendmsg net/socket.c:2363 [inline]
 __x64_sys_sendmsg+0x78/0xb0 net/socket.c:2363
 do_syscall_64+0xfa/0x760 arch/x86/entry/common.c:290
 entry_SYSCALL_64_after_hwframe+0x49/0xbe
RIP: 0033:0x440939

Fixes: 1da177e4c3 ("Linux-2.6.12-rc2")
Signed-off-by: Eric Dumazet <edumazet@google.com>
Reported-by: syzbot+cf0adbb9c28c8866c788@syzkaller.appspotmail.com
Signed-off-by: David S. Miller <davem@davemloft.net>
2019-10-15 20:20:22 -07:00
Eric Dumazet
e9c43add67 net_sched: sch_fq: remove one obsolete check in fq_dequeue()
After commit eeb84aa0d0 ("net_sched: sch_fq: do not assume EDT
packets are ordered"), all skbs get a non zero time_to_send
in flow_queue_add()

This means @time_next_packet variable in fq_dequeue()
can no longer be zero.

Signed-off-by: Eric Dumazet <edumazet@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2019-10-15 20:19:20 -07:00
Nishad Kamdar
b790b5549b net: dsa: sja1105: Use the correct style for SPDX License Identifier
This patch corrects the SPDX License Identifier style
in header files related to Distributed Switch Architecture
drivers for NXP SJA1105 series Ethernet switch support.
It uses an expilict block comment for the SPDX License
Identifier.

Changes made by using a script provided by Joe Perches here:
https://lkml.org/lkml/2019/2/7/46.

Suggested-by: Joe Perches <joe@perches.com>
Signed-off-by: Nishad Kamdar <nishadkamdar@gmail.com>
Reviewed-by: Andrew Lunn <andrew@lunn.ch>
Signed-off-by: David S. Miller <davem@davemloft.net>
2019-10-15 20:16:26 -07:00
Eric Dumazet
cab209e571 tcp: fix a possible lockdep splat in tcp_done()
syzbot found that if __inet_inherit_port() returns an error,
we call tcp_done() after inet_csk_prepare_forced_close(),
meaning the socket lock is no longer held.

We might fix this in a different way in net-next, but
for 5.4 it seems safer to relax the lockdep check.

Fixes: d983ea6f16 ("tcp: add rcu protection around tp->fastopen_rsk")
Signed-off-by: Eric Dumazet <edumazet@google.com>
Reported-by: syzbot <syzkaller@googlegroups.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2019-10-15 20:13:33 -07:00
Alexander Lobakin
6570bc79c0 net: core: use listified Rx for GRO_NORMAL in napi_gro_receive()
Commit 323ebb61e3 ("net: use listified RX for handling GRO_NORMAL
skbs") made use of listified skb processing for the users of
napi_gro_frags().
The same technique can be used in a way more common napi_gro_receive()
to speed up non-merged (GRO_NORMAL) skbs for a wide range of drivers
including gro_cells and mac80211 users.
This slightly changes the return value in cases where skb is being
dropped by the core stack, but it seems to have no impact on related
drivers' functionality.
gro_normal_batch is left untouched as it's very individual for every
single system configuration and might be tuned in manual order to
achieve an optimal performance.

Signed-off-by: Alexander Lobakin <alobakin@dlink.ru>
Acked-by: Edward Cree <ecree@solarflare.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2019-10-15 18:16:30 -07:00
David S. Miller
c9b96eb6da Merge branch 'Update-MT7629-to-support-PHYLINK-API'
MarkLee says:

====================
Update MT7629 to support PHYLINK API

This patch set has two goals :
	1. Fix mt7629 GMII mode issue after apply mediatek
	   PHYLINK support patch.
	2. Update mt7629 dts to reflect the latest dt-binding
	   with PHYLINK support.
====================

Signed-off-by: David S. Miller <davem@davemloft.net>
2019-10-15 18:03:35 -07:00
MarkLee
2618500dd3 arm: dts: mediatek: Update mt7629 dts to reflect the latest dt-binding
* Removes mediatek,physpeed property from dtsi that is useless in PHYLINK
* Use the fixed-link property speed = <2500> to set the phy in 2.5Gbit.
* Set gmac1 to gmii mode that connect to a internal gphy

Signed-off-by: MarkLee <Mark-MC.Lee@mediatek.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2019-10-15 18:03:35 -07:00
MarkLee
4e3eff5bea net: ethernet: mediatek: Fix MT7629 missing GMII mode support
In the original design, mtk_phy_connect function will set ge_mode=1
if phy-mode is GMII(PHY_INTERFACE_MODE_GMII) and then set the correct
ge_mode to ETHSYS_SYSCFG0 register. This logic was broken after apply
mediatek PHYLINK patch(Fixes tag), the new mtk_mac_config function will
not set ge_mode=1 for GMII mode hence the final ETHSYS_SYSCFG0 setting
will be incorrect for mt7629 GMII mode. This patch add the missing logic
back to fix it.

Fixes: b8fc9f3082 ("net: ethernet: mediatek: Add basic PHYLINK support")
Signed-off-by: MarkLee <Mark-MC.Lee@mediatek.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2019-10-15 18:03:35 -07:00
Anson Huang
688f1dfb69 Input: keyboard - imx_sc: Add i.MX system controller key support
i.MX8QXP is an ARMv8 SoC which has a Cortex-M4 system controller
inside, the system controller is in charge of controlling power,
clock and scu key etc..

Adds i.MX system controller key driver support, Linux kernel has
to communicate with system controller via MU (message unit) IPC
to get scu key's status.

Signed-off-by: Anson Huang <Anson.Huang@nxp.com>
Reviewed-by: Rob Herring <robh@kernel.org>
Link: https://lore.kernel.org/r/1570412509-7893-2-git-send-email-Anson.Huang@nxp.com
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2019-10-15 17:43:55 -07:00
Michal Vokáč
ee358cb459 Input: mpr121 - add polling mode
In case the interrupt line is not available, polling can be used
to read out the state of the keys. Period of the polling needs to
be configured by the poll-interval DT property.

Signed-off-by: Michal Vokáč <michal.vokac@ysoft.com>
Reviewed-by: Rob Herring <robh@kernel.org>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2019-10-15 17:43:54 -07:00
Michal Vokáč
def10ec799 dt-bindings: input: Convert mpr121 binding to json-schema
Convert the mpr121 binding to DT schema format using json-schema.

Signed-off-by: Michal Vokáč <michal.vokac@ysoft.com>
Reviewed-by: Rob Herring <robh@kernel.org>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2019-10-15 17:43:53 -07:00
Michal Vokáč
7cef1079e3 dt-bindings: input: Add common input binding in json-schema
Create schema for the common input properties and merge all properties
from the Documentation/devicetree/bindings/input/keys.txt binding into
this common schema.

Signed-off-by: Michal Vokáč <michal.vokac@ysoft.com>
Reviewed-by: Rob Herring <robh@kernel.org>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2019-10-15 17:43:51 -07:00
Kai-Heng Feng
c324345ce8 Revert "Input: elantech - enable SMBus on new (2018+) systems"
This reverts commit 883a2a80f7.

Apparently use dmi_get_bios_year() as manufacturing date isn't accurate
and this breaks older laptops with new BIOS update.

So let's revert this patch.

There are still new HP laptops still need to use SMBus to support all
features, but it'll be enabled via a whitelist.

Signed-off-by: Kai-Heng Feng <kai.heng.feng@canonical.com>
Acked-by: Benjamin Tissoires <benjamin.tissoires@redhat.com>
Cc: stable@vger.kernel.org
Link: https://lore.kernel.org/r/20191001070845.9720-1-kai.heng.feng@canonical.com
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2019-10-15 17:42:47 -07:00
Himadri Pandya
77ffe33363 hv_sock: use HV_HYP_PAGE_SIZE for Hyper-V communication
Current code assumes PAGE_SIZE (the guest page size) is equal
to the page size used to communicate with Hyper-V (which is
always 4K). While this assumption is true on x86, it may not
be true for Hyper-V on other architectures. For example,
Linux on ARM64 may have PAGE_SIZE of 16K or 64K. A new symbol,
HV_HYP_PAGE_SIZE, has been previously introduced to use when
the Hyper-V page size is intended instead of the guest page size.

Make this code work on non-x86 architectures by using the new
HV_HYP_PAGE_SIZE symbol instead of PAGE_SIZE, where appropriate.
Also replace the now redundant PAGE_SIZE_4K with HV_HYP_PAGE_SIZE.
The change has no effect on x86, but lays the groundwork to run
on ARM64 and others.

Signed-off-by: Himadri Pandya <himadrispandya@gmail.com>
Reviewed-by: Michael Kelley <mikelley@microsoft.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2019-10-15 17:25:17 -07:00
David S. Miller
8d045995ed Merge branch 'mpls-push-pop-fix'
Davide Caratti says:

====================
net/sched: fix wrong behavior of MPLS push/pop action

this series contains two fixes for TC 'act_mpls', that try to address
two problems that can be observed configuring simple 'push' / 'pop'
operations:
- patch 1/2 avoids dropping non-MPLS packets that pass through the MPLS
  'pop' action.
- patch 2/2 fixes corruption of the L2 header that occurs when 'push'
  or 'pop' actions are configured in TC egress path.

v2: - change commit message in patch 1/2 to better describe that the
      patch impacts only TC, thanks to Simon Horman
    - fix missing documentation of 'mac_len' in patch 2/2
====================

Signed-off-by: David S. Miller <davem@davemloft.net>
2019-10-15 17:14:48 -07:00
Davide Caratti
fa4e0f8855 net/sched: fix corrupted L2 header with MPLS 'push' and 'pop' actions
the following script:

 # tc qdisc add dev eth0 clsact
 # tc filter add dev eth0 egress protocol ip matchall \
 > action mpls push protocol mpls_uc label 0x355aa bos 1

causes corruption of all IP packets transmitted by eth0. On TC egress, we
can't rely on the value of skb->mac_len, because it's 0 and a MPLS 'push'
operation will result in an overwrite of the first 4 octets in the packet
L2 header (e.g. the Destination Address if eth0 is an Ethernet); the same
error pattern is present also in the MPLS 'pop' operation. Fix this error
in act_mpls data plane, computing 'mac_len' as the difference between the
network header and the mac header (when not at TC ingress), and use it in
MPLS 'push'/'pop' core functions.

v2: unbreak 'make htmldocs' because of missing documentation of 'mac_len'
    in skb_mpls_pop(), reported by kbuild test robot

CC: Lorenzo Bianconi <lorenzo@kernel.org>
Fixes: 2a2ea50870 ("net: sched: add mpls manipulation actions to TC")
Reviewed-by: Simon Horman <simon.horman@netronome.com>
Acked-by: John Hurley <john.hurley@netronome.com>
Signed-off-by: Davide Caratti <dcaratti@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2019-10-15 17:14:48 -07:00
Davide Caratti
dedc5a08da net: avoid errors when trying to pop MLPS header on non-MPLS packets
the following script:

 # tc qdisc add dev eth0 clsact
 # tc filter add dev eth0 egress matchall action mpls pop

implicitly makes the kernel drop all packets transmitted by eth0, if they
don't have a MPLS header. This behavior is uncommon: other encapsulations
(like VLAN) just let the packet pass unmodified. Since the result of MPLS
'pop' operation would be the same regardless of the presence / absence of
MPLS header(s) in the original packet, we can let skb_mpls_pop() return 0
when dealing with non-MPLS packets.

For the OVS use-case, this is acceptable because __ovs_nla_copy_actions()
already ensures that MPLS 'pop' operation only occurs with packets having
an MPLS Ethernet type (and there are no other callers in current code, so
the semantic change should be ok).

v2: better documentation of use-cases for skb_mpls_pop(), thanks to Simon
    Horman

Fixes: 2a2ea50870 ("net: sched: add mpls manipulation actions to TC")
Reviewed-by: Simon Horman <simon.horman@netronome.com>
Acked-by: John Hurley <john.hurley@netronome.com>
Signed-off-by: Davide Caratti <dcaratti@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2019-10-15 17:14:48 -07:00
Jiri Pirko
5bc60de50d selftests: bpf: Don't try to read files without read permission
Recently couple of files that are write only were added to netdevsim
debugfs. Don't read these files and avoid error.

Reported-by: kernel test robot <rong.a.chen@intel.com>
Signed-off-by: Jiri Pirko <jiri@mellanox.com>
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
Acked-by: Jakub Kicinski <jakub.kicinski@netronome.com>
2019-10-15 16:27:25 -07:00
Stanislav Fomichev
95fbda1e37 selftests: bpf: Add selftest for __sk_buff tstamp
Make sure BPF_PROG_TEST_RUN accepts tstamp and exports any
modifications that BPF program does.

Signed-off-by: Stanislav Fomichev <sdf@google.com>
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
Acked-by: Martin KaFai Lau <kafai@fb.com>
Link: https://lore.kernel.org/bpf/20191015183125.124413-2-sdf@google.com
2019-10-15 16:24:26 -07:00
Stanislav Fomichev
ba94094818 bpf: Allow __sk_buff tstamp in BPF_PROG_TEST_RUN
It's useful for implementing EDT related tests (set tstamp, run the
test, see how the tstamp is changed or observe some other parameter).

Note that bpf_ktime_get_ns() helper is using monotonic clock, so for
the BPF programs that compare tstamp against it, tstamp should be
derived from clock_gettime(CLOCK_MONOTONIC, ...).

Signed-off-by: Stanislav Fomichev <sdf@google.com>
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
Acked-by: Martin KaFai Lau <kafai@fb.com>
Link: https://lore.kernel.org/bpf/20191015183125.124413-1-sdf@google.com
2019-10-15 16:24:26 -07:00