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Do not set 'needs_free_netdev' as we do call free_netdev
for mgmt net devices, doing both hits BUG_ON.
Signed-off-by: Ganesh Goudar <ganeshgr@chelsio.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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instantiation of VF's on different adapters fails, copy
adapter index and chip type to PF0-3 adapter instances
to fix the issue.
Signed-off-by: Ganesh Goudar <ganeshgr@chelsio.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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The QP state is limited and declared in enum ib_qp_state,
but ucma user was able to supply any possible (u32) value.
Reported-by: syzbot+0df1ab766f8924b1edba@syzkaller.appspotmail.com
Fixes: 75216638572f ("RDMA/cma: Export rdma cm interface to userspace")
Signed-off-by: Leon Romanovsky <leonro@mellanox.com>
Signed-off-by: Doug Ledford <dledford@redhat.com>
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The user can provide very large cqe_size which will cause to integer
overflow as it can be seen in the following UBSAN warning:
Signed-off-by: Doug Ledford <dledford@redhat.com>
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Users of ucma are supposed to provide size of option level,
in most paths it is supposed to be equal to u8 or u16, but
it is not the case for the IB path record, where it can be
multiple of struct ib_path_rec_data.
This patch takes simplest possible approach and prevents providing
values more than possible to allocate.
Reported-by: syzbot+a38b0e9f694c379ca7ce@syzkaller.appspotmail.com
Fixes: 7ce86409adcd ("RDMA/ucma: Allow user space to set service type")
Signed-off-by: Leon Romanovsky <leonro@mellanox.com>
Signed-off-by: Doug Ledford <dledford@redhat.com>
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resolved_dev returned might be NULL as ifindex is transient number.
Ignoring NULL check of resolved_dev might crash the kernel.
Therefore perform NULL check before accessing resolved_dev.
Additionally rdma_resolve_ip_route() invokes addr_resolve() which
performs check and address translation for loopback ifindex.
Therefore, checking it again in rdma_resolve_ip_route() is not helpful.
Therefore, the code is simplified to avoid IFF_LOOPBACK check.
Fixes: 200298326b27 ("IB/core: Validate route when we init ah")
Reviewed-by: Daniel Jurgens <danielj@mellanox.com>
Signed-off-by: Parav Pandit <parav@mellanox.com>
Signed-off-by: Leon Romanovsky <leon@kernel.org>
Signed-off-by: Doug Ledford <dledford@redhat.com>
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Starting with v4.16-rc1 we've been seeing a higher than usual number
of requests for the kernel to load networking modules, even on events
which shouldn't trigger a module load (e.g. ioctl(TCGETS)). Stephen
Smalley suggested the problem may lie in commit 44c02a2c3dc5
("dev_ioctl(): move copyin/copyout to callers") which moves changes
the network dev_ioctl() function to always call dev_load(),
regardless of the requested ioctl.
This patch moves the dev_load() calls back into the individual ioctls
while preserving the rest of the original patch.
Reported-by: Dominick Grift <dac.override@gmail.com>
Suggested-by: Stephen Smalley <sds@tycho.nsa.gov>
Signed-off-by: Paul Moore <paul@paul-moore.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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git://git.kernel.org/pub/scm/linux/kernel/git/gfs2/linux-gfs2
Pull gfs2 fix from Bob Peterson:
"An additional patch from Andreas Gruenbacher that fixes another
unfortunate GFS2 regression"
* tag 'gfs2-4.16.rc4.fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/gfs2/linux-gfs2:
gfs2: Fixes to "Implement iomap for block_map" (2)
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When the connection is aborted, there is no point in
keeping the packets on the write queue until the connection
is closed.
Similar to a27fd7a8ed38 ('tcp: purge write queue upon RST'),
this is essential for a correct MSG_ZEROCOPY implementation,
because userspace cannot call close(fd) before receiving
zerocopy signals even when the connection is aborted.
Fixes: f214f915e7db ("tcp: enable MSG_ZEROCOPY")
Signed-off-by: Soheil Hassas Yeganeh <soheil@google.com>
Signed-off-by: Neal Cardwell <ncardwell@google.com>
Reviewed-by: Eric Dumazet <edumazet@google.com>
Signed-off-by: Yuchung Cheng <ycheng@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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git://git.kernel.org/pub/scm/linux/kernel/git/s390/linux
Pull s390 fixes from Martin Schwidefsky:
"Nine bug fixes for s390:
- Three fixes for the expoline code, one of them is strictly speaking
a cleanup but as it relates to code added with 4.16 I would like to
include the patch.
- Three timer related fixes in the common I/O layer
- A fix for the handling of internal DASD request which could cause
panics.
- One correction in regard to the accounting of pud page tables vs.
compat tasks.
- The register scrubbing in entry.S caused spurious crashes, this is
fixed now as well"
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/s390/linux:
s390/entry.S: fix spurious zeroing of r0
s390: Fix runtime warning about negative pgtables_bytes
s390: do not bypass BPENTER for interrupt system calls
s390/cio: clear timer when terminating driver I/O
s390/cio: fix return code after missing interrupt
s390/cio: fix ccw_device_start_timeout API
s390/clean-up: use CFI_* macros in entry.S
s390: Replace IS_ENABLED(EXPOLINE_*) with IS_ENABLED(CONFIG_EXPOLINE_*)
s390/dasd: fix handling of internal requests
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git://git.kernel.org/pub/scm/linux/kernel/git/broonie/regulator
Pull regulator fixes from Mark Brown:
"A couple of fixes here:
- another half of the supend to idle fix from Geert that went in
earlier, both he and I are confused as to why he didn't notice that
this was missing when his earlier fix was merged.
- a simple fix for a test done the wrong way round in the
stm32-vrefbuf driver"
* tag 'regulator-fix-v4.16-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/regulator:
regulator: Fix resume from suspend to idle
regulator: stm32-vrefbuf: fix check on ready flag
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git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi
Pull SCSI fixes from James Bottomley:
"This is mostly fixes for driver specific issues (nine of them) and the
storvsc performance improvement with interrupt handling which was
dropped from the previous fixes pull request.
We also have two regressions: one is a double call_rcu() in ATA error
handling and the other is a missed conversion to BLK_STS_OK in
__scsi_error_from_host_byte()"
* tag 'scsi-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi:
scsi: qedi: Fix kernel crash during port toggle
scsi: qla2xxx: Fix FC-NVMe LUN discovery
scsi: core: return BLK_STS_OK for DID_OK in __scsi_error_from_host_byte()
scsi: core: Avoid that ATA error handling can trigger a kernel hang or oops
scsi: qla2xxx: ensure async flags are reset correctly
scsi: qla2xxx: do not check login_state if no loop id is assigned
scsi: qla2xxx: Fixup locking for session deletion
scsi: qla2xxx: Fix NULL pointer crash due to active timer for ABTS
scsi: mpt3sas: wait for and flush running commands on shutdown/unload
scsi: mpt3sas: fix oops in error handlers after shutdown/unload
scsi: storvsc: Spread interrupts when picking a channel for I/O requests
scsi: megaraid_sas: Do not use 32-bit atomic request descriptor for Ventura controllers
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It turns out that commit 3229c18c0d6b2 'Fixes to "Implement iomap for
block_map"' introduced another bug in gfs2_iomap_begin that can cause
gfs2_block_map to set bh->b_size of an actual buffer to 0. This can
lead to arbitrary incorrect behavior including crashes or disk
corruption. Revert the incorrect part of that commit.
Signed-off-by: Andreas Gruenbacher <agruenba@redhat.com>
Signed-off-by: Bob Peterson <rpeterso@redhat.com>
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dccp_disconnect() sets 'dp->dccps_hc_tx_ccid' tx handler to NULL,
therefore if DCCP socket is disconnected and dccp_sendmsg() is
called after it, it will cause a NULL pointer dereference in
dccp_write_xmit().
This crash and the reproducer was reported by syzbot. Looks like
it is reproduced if commit 69c64866ce07 ("dccp: CVE-2017-8824:
use-after-free in DCCP code") is applied.
Reported-by: syzbot+f99ab3887ab65d70f816@syzkaller.appspotmail.com
Signed-off-by: Alexey Kodanev <alexey.kodanev@oracle.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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syzkaller found an issue caused by lack of sufficient checks
in l2tp_tunnel_create()
RAW sockets can not be considered as UDP ones for instance.
In another patch, we shall replace all pr_err() by less intrusive
pr_debug() so that syzkaller can find other bugs faster.
Acked-by: Guillaume Nault <g.nault@alphalink.fr>
Acked-by: James Chapman <jchapman@katalix.com>
==================================================================
BUG: KASAN: slab-out-of-bounds in setup_udp_tunnel_sock+0x3ee/0x5f0 net/ipv4/udp_tunnel.c:69
dst_release: dst:00000000d53d0d0f refcnt:-1
Write of size 1 at addr ffff8801d013b798 by task syz-executor3/6242
CPU: 1 PID: 6242 Comm: syz-executor3 Not tainted 4.16.0-rc2+ #253
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
Call Trace:
__dump_stack lib/dump_stack.c:17 [inline]
dump_stack+0x194/0x24d lib/dump_stack.c:53
print_address_description+0x73/0x250 mm/kasan/report.c:256
kasan_report_error mm/kasan/report.c:354 [inline]
kasan_report+0x23b/0x360 mm/kasan/report.c:412
__asan_report_store1_noabort+0x17/0x20 mm/kasan/report.c:435
setup_udp_tunnel_sock+0x3ee/0x5f0 net/ipv4/udp_tunnel.c:69
l2tp_tunnel_create+0x1354/0x17f0 net/l2tp/l2tp_core.c:1596
pppol2tp_connect+0x14b1/0x1dd0 net/l2tp/l2tp_ppp.c:707
SYSC_connect+0x213/0x4a0 net/socket.c:1640
SyS_connect+0x24/0x30 net/socket.c:1621
do_syscall_64+0x280/0x940 arch/x86/entry/common.c:287
entry_SYSCALL_64_after_hwframe+0x42/0xb7
Fixes: fd558d186df2 ("l2tp: Split pppol2tp patch into separate l2tp and ppp parts")
Signed-off-by: Eric Dumazet <edumazet@google.com>
Reported-by: syzbot <syzkaller@googlegroups.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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inet_evict_bucket() iterates global list, and
several tasks may call it in parallel. All of
them hash the same fq->list_evictor to different
lists, which leads to list corruption.
This patch makes fq be hashed to expired list
only if this has not been made yet by another
task. Since inet_frag_alloc() allocates fq
using kmem_cache_zalloc(), we may rely on
list_evictor is initially unhashed.
The problem seems to exist before async
pernet_operations, as there was possible to have
exit method to be executed in parallel with
inet_frags::frags_work, so I add two Fixes tags.
This also may go to stable.
Fixes: d1fe19444d82 "inet: frag: don't re-use chainlist for evictor"
Fixes: f84c6821aa54 "net: Convert pernet_subsys, registered from inet_init()"
Signed-off-by: Kirill Tkhai <ktkhai@virtuozzo.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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The smsc911x driver will crash if it is rmmod'ed while the netdev
is up like:
Call trace:
phy_detach+0x94/0x150
phy_disconnect+0x40/0x50
smsc911x_stop+0x104/0x128 [smsc911x]
__dev_close_many+0xb4/0x138
dev_close_many+0xbc/0x190
rollback_registered_many+0x140/0x460
rollback_registered+0x68/0xb0
unregister_netdevice_queue+0x100/0x118
unregister_netdev+0x28/0x38
smsc911x_drv_remove+0x58/0x130 [smsc911x]
platform_drv_remove+0x30/0x50
device_release_driver_internal+0x15c/0x1f8
driver_detach+0x54/0x98
bus_remove_driver+0x64/0xe8
driver_unregister+0x34/0x60
platform_driver_unregister+0x20/0x30
smsc911x_cleanup_module+0x14/0xbca8 [smsc911x]
SyS_delete_module+0x1e8/0x238
__sys_trace_return+0x0/0x4
This is caused by the mdiobus being unregistered/free'd
and the code in phy_detach() attempting to manipulate mdio
related structures from unregister_netdev() calling close()
To fix this, we delay the mdiobus teardown until after
the netdev is deregistered.
Reported-by: Matt Sealey <matt.sealey@arm.com>
Signed-off-by: Jeremy Linton <jeremy.linton@arm.com>
Reviewed-by: Andrew Lunn <andrew@lunn.ch>
Signed-off-by: David S. Miller <davem@davemloft.net>
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Currently, administrative MTU changes on a given netdevice are
not reflected on route exceptions for MTU-less routes, with a
set PMTU value, for that device:
# ip -6 route get 2001:db8::b
2001:db8::b from :: dev vti_a proto kernel src 2001:db8::a metric 256 pref medium
# ping6 -c 1 -q -s10000 2001:db8::b > /dev/null
# ip netns exec a ip -6 route get 2001:db8::b
2001:db8::b from :: dev vti_a src 2001:db8::a metric 0
cache expires 571sec mtu 4926 pref medium
# ip link set dev vti_a mtu 3000
# ip -6 route get 2001:db8::b
2001:db8::b from :: dev vti_a src 2001:db8::a metric 0
cache expires 571sec mtu 4926 pref medium
# ip link set dev vti_a mtu 9000
# ip -6 route get 2001:db8::b
2001:db8::b from :: dev vti_a src 2001:db8::a metric 0
cache expires 571sec mtu 4926 pref medium
The first issue is that since commit fb56be83e43d ("net-ipv6: on
device mtu change do not add mtu to mtu-less routes") we don't
call rt6_exceptions_update_pmtu() from rt6_mtu_change_route(),
which handles administrative MTU changes, if the regular route
is MTU-less.
However, PMTU exceptions should be always updated, as long as
RTAX_MTU is not locked. Keep the check for MTU-less main route,
as introduced by that commit, but, for exceptions,
call rt6_exceptions_update_pmtu() regardless of that check.
Once that is fixed, one problem remains: MTU changes are not
reflected if the new MTU is higher than the previous one,
because rt6_exceptions_update_pmtu() doesn't allow that. We
should instead allow PMTU increase if the old PMTU matches the
local MTU, as that implies that the old MTU was the lowest in the
path, and PMTU discovery might lead to different results.
The existing check in rt6_mtu_change_route() correctly took that
case into account (for regular routes only), so factor it out
and re-use it also in rt6_exceptions_update_pmtu().
While at it, fix comments style and grammar, and try to be a bit
more descriptive.
Reported-by: Xiumei Mu <xmu@redhat.com>
Fixes: fb56be83e43d ("net-ipv6: on device mtu change do not add mtu to mtu-less routes")
Fixes: f5bbe7ee79c2 ("ipv6: prepare rt6_mtu_change() for exception table")
Signed-off-by: Stefano Brivio <sbrivio@redhat.com>
Acked-by: David Ahern <dsahern@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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The D3 (r8a77995) supports two LVDS channels. Extend the binding to
support them.
Signed-off-by: Kieran Bingham <kieran.bingham+renesas@ideasonboard.com>
[Fixed compatible string]
Reviewed-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com>
Signed-off-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com>
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Document the D3 (r8a77995) SoC in the R-Car DU bindings.
Signed-off-by: Kieran Bingham <kieran.bingham+renesas@ideasonboard.com>
Reviewed-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com>
Signed-off-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com>
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Add support for the R-Car V3M (R8A77970) SoC to the LVDS encoder driver.
Note that there are some differences with the other R-Car gen3 SoCs, e.g.
LVDPLLCR has the same layout as in the R-Car gen2 SoCs.
Signed-off-by: Sergei Shtylyov <sergei.shtylyov@cogentembedded.com>
Reviewed-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com>
Signed-off-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com>
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Add support for the R-Car V3M (R8A77970) SoC to the R-Car DU driver.
Signed-off-by: Sergei Shtylyov <sergei.shtylyov@cogentembedded.com>
Reviewed-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com>
Signed-off-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com>
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Document the R-Car V3M (R8A77970) SoC in the R-Car LVDS bindings.
Signed-off-by: Sergei Shtylyov <sergei.shtylyov@cogentembedded.com>
Reviewed-by: Rob Herring <robh@kernel.org>
Reviewed-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com>
Signed-off-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com>
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This patch fixes the warning messages/call traces seen if DMA debug is
enabled, In case of fragmented skb's memory was allocated using
dma_map_page but freed using dma_unmap_single. This patch modifies buffer
allocations in TX path to use dma_map_page in all the places and
dma_unmap_page while freeing the buffers.
Signed-off-by: Hemanth Puranik <hpuranik@codeaurora.org>
Acked-by: Timur Tabi <timur@codeaurora.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
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Document the R-Car V3M (R8A77970) SoC in the R-Car DU bindings.
Signed-off-by: Sergei Shtylyov <sergei.shtylyov@cogentembedded.com>
Acked-by: Rob Herring <robh@kernel.org>
Reviewed-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com>
Signed-off-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com>
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Rdma requires ILT Memory to be allocated for it's QPs.
Each ILT entry points to a page used by several Rdma QPs.
To avoid allocating all the memory in advance, the rdma
implementation dynamically allocates memory as more QPs are
added, however it does not dynamically free the memory.
The memory should have been freed on rmmod qedr, but isn't.
This patch adds the memory freeing on rmmod qedr (currently
it will be freed with qed is removed).
An outcome of this bug, is that if qedr is unloaded and loaded
without unloaded qed, there will be no more RoCE traffic.
The reason these are related, is that the logic of detecting the
first QP ever opened is by asking whether ILT memory for RoCE has
been allocated.
In addition, this patch modifies freeing of the Task context to
always use the PROTOCOLID_ROCE and not the protocol passed,
this is because task context for iWARP and ROCE both use the
ROCE protocol id, as opposed to the connection context.
Fixes: dbb799c39717 ("qed: Initialize hardware for new protocols")
Signed-off-by: Michal Kalderon <Michal.Kalderon@cavium.com>
Signed-off-by: Ariel Elior <Ariel.Elior@cavium.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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git://git.kernel.org/pub/scm/linux/kernel/git/jkirsher/net-queue
Jeff Kirsher says:
====================
Intel Wired LAN Driver Updates 2018-03-05
This series contains fixes to e1000e only.
Benjamin Poirier provides all but one fix in this series, starting with
workaround for a VMWare e1000e emulation issue where ICR reads 0x0 on
the emulated device. Partially reverted a previous commit dealing with
the "Other" interrupt throttling to avoid unforeseen fallout from these
changes that are not strictly necessary. Restored the ICS write for
receive and transmit queue interrupts in the case that txq or rxq bits
were set in ICR and the Other interrupt handler read and cleared ICR
before the queue interrupt was raised. Fixed an bug where interrupts
may be missed if ICR is read while INT_ASSERTED is not set, so avoid the
problem by setting all bits related to events that can trigger the Other
interrupt in IMS. Fixed the return value for check_for_link() when
auto-negotiation is off.
Pierre-Yves Kerbrat fixes e1000e to use dma_zalloc_coherent() to make
sure the ring is memset to 0 to prevent the area from containing
garbage.
v2: added an additional e1000e fix to the series
====================
Signed-off-by: David S. Miller <davem@davemloft.net>
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The subordinate value indicates the highest bus number which can be
reached downstream though a certain device.
Commit a20c7f36bd3d ("PCI: Do not allocate more buses than available in
parent") ensures that downstream devices cannot assign busnumbers higher
than the upstream device subordinate number, which was indeed illogical.
By default, dw_pcie_setup_rc() inits the Root Complex subordinate to a
value of 0x01.
Due to this combined with above commit, enumeration stops digging deeper
downstream as soon as bus num 0x01 has been assigned, which is always the
case for a bridge device.
This results in all devices behind a bridge bus remaining undetected, as
these would be connected to bus 0x02 or higher.
Fix this by initializing the RC to a subordinate value of 0xff, which is
not altering hardware behaviour in any way, but informs probing function
pci_scan_bridge() later on which reads this value back from register.
The following nasty errors during boot are also fixed by this:
pci_bus 0000:02: busn_res: can not insert [bus 02-ff] under [bus 01] (conflicts with (null) [bus 01])
...
pci_bus 0000:03: [bus 03] partially hidden behind bridge 0000:01 [bus 01]
...
pci_bus 0000:04: [bus 04] partially hidden behind bridge 0000:01 [bus 01]
...
pci_bus 0000:05: [bus 05] partially hidden behind bridge 0000:01 [bus 01]
pci_bus 0000:02: busn_res: [bus 02-ff] end is updated to 05
pci_bus 0000:02: busn_res: can not insert [bus 02-05] under [bus 01] (conflicts with (null) [bus 01])
pci_bus 0000:02: [bus 02-05] partially hidden behind bridge 0000:01 [bus 01]
Fixes: a20c7f36bd3d ("PCI: Do not allocate more buses than available in
parent")
Tested-by: Niklas Cassel <niklas.cassel@axis.com>
Tested-by: Fabio Estevam <fabio.estevam@nxp.com>
Tested-by: Sebastian Reichel <sebastian.reichel@collabora.co.uk>
Signed-off-by: Koen Vandeputte <koen.vandeputte@ncentric.com>
Signed-off-by: Lorenzo Pieralisi <lorenzo.pieralisi@arm.com>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Reviewed-by: Mika Westerberg <mika.westerberg@linux.intel.com>
Acked-by: Lucas Stach <l.stach@pengutronix.de>
Cc: stable@vger.kernel.org # v4.15+
Cc: Binghui Wang <wangbinghui@hisilicon.com>
Cc: Jesper Nilsson <jesper.nilsson@axis.com>
Cc: Jianguo Sun <sunjianguo1@huawei.com>
Cc: Jingoo Han <jingoohan1@gmail.com>
Cc: Kishon Vijay Abraham I <kishon@ti.com>
Cc: Lucas Stach <l.stach@pengutronix.de>
Cc: Mika Westerberg <mika.westerberg@linux.intel.com>
Cc: Minghuan Lian <minghuan.Lian@freescale.com>
Cc: Mingkai Hu <mingkai.hu@freescale.com>
Cc: Murali Karicheri <m-karicheri2@ti.com>
Cc: Pratyush Anand <pratyush.anand@gmail.com>
Cc: Richard Zhu <hongxing.zhu@nxp.com>
Cc: Roy Zang <tie-fei.zang@freescale.com>
Cc: Shawn Guo <shawn.guo@linaro.org>
Cc: Stanimir Varbanov <svarbanov@mm-sol.com>
Cc: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
Cc: Xiaowei Song <songxiaowei@hisilicon.com>
Cc: Zhou Wang <wangzhou1@hisilicon.com>
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Marek reported a LOCKDEP issue occurring on 32bit host,
that we tracked down to the fact that usbnet could either
run from soft or hard irqs.
This patch adds u64_stats_update_begin_irqsave() and
u64_stats_update_end_irqrestore() helpers to solve this case.
[ 17.768040] ================================
[ 17.772239] WARNING: inconsistent lock state
[ 17.776511] 4.16.0-rc3-next-20180227-00007-g876c53a7493c #453 Not tainted
[ 17.783329] --------------------------------
[ 17.787580] inconsistent {IN-HARDIRQ-W} -> {HARDIRQ-ON-W} usage.
[ 17.793607] swapper/0/0 [HC0[0]:SC1[1]:HE1:SE0] takes:
[ 17.798751] (&syncp->seq#5){?.-.}, at: [<9b22e5f0>]
asix_rx_fixup_internal+0x188/0x288
[ 17.806790] {IN-HARDIRQ-W} state was registered at:
[ 17.811677] tx_complete+0x100/0x208
[ 17.815319] __usb_hcd_giveback_urb+0x60/0xf0
[ 17.819770] xhci_giveback_urb_in_irq+0xa8/0x240
[ 17.824469] xhci_td_cleanup+0xf4/0x16c
[ 17.828367] xhci_irq+0xe74/0x2240
[ 17.831827] usb_hcd_irq+0x24/0x38
[ 17.835343] __handle_irq_event_percpu+0x98/0x510
[ 17.840111] handle_irq_event_percpu+0x1c/0x58
[ 17.844623] handle_irq_event+0x38/0x5c
[ 17.848519] handle_fasteoi_irq+0xa4/0x138
[ 17.852681] generic_handle_irq+0x18/0x28
[ 17.856760] __handle_domain_irq+0x6c/0xe4
[ 17.860941] gic_handle_irq+0x54/0xa0
[ 17.864666] __irq_svc+0x70/0xb0
[ 17.867964] arch_cpu_idle+0x20/0x3c
[ 17.871578] arch_cpu_idle+0x20/0x3c
[ 17.875190] do_idle+0x144/0x218
[ 17.878468] cpu_startup_entry+0x18/0x1c
[ 17.882454] start_kernel+0x394/0x400
[ 17.886177] irq event stamp: 161912
[ 17.889616] hardirqs last enabled at (161912): [<7bedfacf>]
__netdev_alloc_skb+0xcc/0x140
[ 17.897893] hardirqs last disabled at (161911): [<d58261d0>]
__netdev_alloc_skb+0x94/0x140
[ 17.904903] exynos5-hsi2c 12ca0000.i2c: tx timeout
[ 17.906116] softirqs last enabled at (161904): [<387102ff>]
irq_enter+0x78/0x80
[ 17.906123] softirqs last disabled at (161905): [<cf4c628e>]
irq_exit+0x134/0x158
[ 17.925722].
[ 17.925722] other info that might help us debug this:
[ 17.933435] Possible unsafe locking scenario:
[ 17.933435].
[ 17.940331] CPU0
[ 17.942488] ----
[ 17.944894] lock(&syncp->seq#5);
[ 17.948274] <Interrupt>
[ 17.950847] lock(&syncp->seq#5);
[ 17.954386].
[ 17.954386] *** DEADLOCK ***
[ 17.954386].
[ 17.962422] no locks held by swapper/0/0.
Fixes: c8b5d129ee29 ("net: usbnet: support 64bit stats")
Signed-off-by: Eric Dumazet <edumazet@google.com>
Reported-by: Marek Szyprowski <m.szyprowski@samsung.com>
Cc: Greg Ungerer <gerg@linux-m68k.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
|
|
Pimp drm_property_type_valid() to check for more fails with the
property flags. Also make the check before adding the property,
and bail out if things look bad.
Since we're now chekcing for more than the type let's also
change the function name to drm_property_flags_valid().
Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20180306164849.2862-6-ville.syrjala@linux.intel.com
Reviewed-by: Daniel Vetter <daniel.vetter@ffwll.ch>
|
|
The property flags are part of the uabi and we have 32 bits for them.
Pass them around as u32 internally as well, instead of a signed int.
Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20180306164849.2862-5-ville.syrjala@linux.intel.com
Reviewed-by: Daniel Vetter <daniel.vetter@ffwll.ch>
|
|
DRM_MODE_PROP_PENDING is not used anywhere (except printed out
by libdrm proptest/modetest).
This seems to be yet another thing blindly copied from xrandr.
Quoting from the protocol spec:
"If 'pending' is TRUE, changes made to property values with
RRChangeOutputProperty will be saved in the pending property value
and be automatically copied to the current value on the next
RRSetCrtcConfig request involving the named output. If 'pending' is
FALSE, changes are copied immediately."
So it was some kind of early idea for atomic property updates.
Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20180306164849.2862-4-ville.syrjala@linux.intel.com
Reviewed-by: Daniel Vetter <daniel.vetter@ffwll.ch>
|
|
Enum values >63 with a bitmask property is a programmer error. WARN
when someone is attempting this.
Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20180306164849.2862-3-ville.syrjala@linux.intel.com
Reviewed-by: Daniel Vetter <daniel.vetter@ffwll.ch>
|
|
Trying to add enum values to non-enum/bitmask properties is a
programmer mistake. WARN to make sure the developers notice
their mistake.
Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20180306164849.2862-2-ville.syrjala@linux.intel.com
Reviewed-by: Daniel Vetter <daniel.vetter@ffwll.ch>
|
|
If the property already has the enum value WARN and bail.
Replacing enum values doesn't make sense to me.
Throw out the pointless list_empty() while at it.
Cc: Daniel Vetter <daniel@ffwll.ch>
Suggested-by: Daniel Vetter <daniel@ffwll.ch>
Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20180306164849.2862-1-ville.syrjala@linux.intel.com
Reviewed-by: Daniel Vetter <daniel.vetter@ffwll.ch>
|
|
When we exceed current packets limit and we have more than one
segment in the list returned by skb_gso_segment(), netem drops
only the first one, skipping the rest, hence kmemleak reports:
unreferenced object 0xffff880b5d23b600 (size 1024):
comm "softirq", pid 0, jiffies 4384527763 (age 2770.629s)
hex dump (first 32 bytes):
00 80 23 5d 0b 88 ff ff 00 00 00 00 00 00 00 00 ..#]............
00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................
backtrace:
[<00000000d8a19b9d>] __alloc_skb+0xc9/0x520
[<000000001709b32f>] skb_segment+0x8c8/0x3710
[<00000000c7b9bb88>] tcp_gso_segment+0x331/0x1830
[<00000000c921cba1>] inet_gso_segment+0x476/0x1370
[<000000008b762dd4>] skb_mac_gso_segment+0x1f9/0x510
[<000000002182660a>] __skb_gso_segment+0x1dd/0x620
[<00000000412651b9>] netem_enqueue+0x1536/0x2590 [sch_netem]
[<0000000005d3b2a9>] __dev_queue_xmit+0x1167/0x2120
[<00000000fc5f7327>] ip_finish_output2+0x998/0xf00
[<00000000d309e9d3>] ip_output+0x1aa/0x2c0
[<000000007ecbd3a4>] tcp_transmit_skb+0x18db/0x3670
[<0000000042d2a45f>] tcp_write_xmit+0x4d4/0x58c0
[<0000000056a44199>] tcp_tasklet_func+0x3d9/0x540
[<0000000013d06d02>] tasklet_action+0x1ca/0x250
[<00000000fcde0b8b>] __do_softirq+0x1b4/0x5a3
[<00000000e7ed027c>] irq_exit+0x1e2/0x210
Fix it by adding the rest of the segments, if any, to skb 'to_free'
list. Add new __qdisc_drop_all() and qdisc_drop_all() functions
because they can be useful in the future if we need to drop segmented
GSO packets in other places.
Fixes: 6071bd1aa13e ("netem: Segment GSO packets on enqueue")
Signed-off-by: Alexey Kodanev <alexey.kodanev@oracle.com>
Acked-by: Neil Horman <nhorman@tuxdriver.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
|
|
The LVDS encoders used to be described in DT as part of the DU. They now
have their own DT node, linked to the DU using the OF graph bindings.
This allows moving internal LVDS encoder support to a separate driver
modelled as a DRM bridge. Backward compatibility is retained as legacy
DT is patched live to move to the new bindings.
Signed-off-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com>
Reviewed-by: Niklas Söderlund <niklas.soderlund+renesas@ragnatech.se>
|
|
The internal LVDS encoders now have their own DT bindings. Before
switching the driver infrastructure to those new bindings, implement
backward-compatibility through live DT patching.
Patching is disabled and will be enabled along with support for the new
DT bindings in the DU driver.
Signed-off-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com>
Reviewed-by: Niklas Söderlund <niklas.soderlund+renesas@ragnatech.se>
Reviewed-by: Frank Rowand <frank.rowand@sony.com>
|
|
The internal LVDS encoders now have their own DT bindings, representing
them as part of the DU is deprecated.
Signed-off-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com>
Reviewed-by: Rob Herring <robh@kernel.org>
Reviewed-by: Niklas Söderlund <niklas.soderlund+renesas@ragnatech.se>
|
|
The Renesas R-Car Gen2 and Gen3 SoCs have internal LVDS encoders. Add
corresponding device tree bindings.
Signed-off-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com>
Reviewed-by: Rob Herring <robh@kernel.org>
Reviewed-by: Niklas Söderlund <niklas.soderlund+renesas@ragnatech.se>
|
|
git://git.kernel.org/pub/scm/linux/kernel/git/frowand/linux into drm/next/du
- DT overlay applying rework (Frank Rowand)
Move duplicating and unflattening of an overlay flattened devicetree
(FDT) into the overlay application code. To accomplish this,
of_overlay_apply() is replaced by of_overlay_fdt_apply().
|
|
git://git.kernel.org/pub/scm/linux/kernel/git/bluetooth/bluetooth
Johan Hedberg says:
====================
pull request: bluetooth 2018-03-05
Here are a few more Bluetooth fixes for the 4.16 kernel:
- btusb: reset/resume fixes for Yoga 920 and Dell OptiPlex 3060
- Fix for missing encryption refresh with the Security Manager protocol
====================
Signed-off-by: David S. Miller <davem@davemloft.net>
|
|
__dev_mc_add grabs an adress spinlock so use
atomic context in kmalloc.
/ # ifconfig eth0 inet 192.168.0.111
[ 89.331622] BUG: sleeping function called from invalid context at mm/slab.h:420
[ 89.339002] in_atomic(): 1, irqs_disabled(): 0, pid: 1035, name: ifconfig
[ 89.345799] 2 locks held by ifconfig/1035:
[ 89.349908] #0: (rtnl_mutex){+.+.}, at: [<(ptrval)>] devinet_ioctl+0xc0/0x8a0
[ 89.357258] #1: (_xmit_ETHER){+...}, at: [<(ptrval)>] __dev_mc_add+0x28/0x80
[ 89.364520] CPU: 1 PID: 1035 Comm: ifconfig Not tainted 4.16.0-rc3-dirty #8
[ 89.371464] Call Trace:
[ 89.373908] [e959db60] [c066f948] dump_stack+0xa4/0xfc (unreliable)
[ 89.380177] [e959db80] [c00671d8] ___might_sleep+0x248/0x280
[ 89.385833] [e959dba0] [c01aec34] kmem_cache_alloc_trace+0x174/0x320
[ 89.392179] [e959dbd0] [c04ab920] dtsec_add_hash_mac_address+0x130/0x240
[ 89.398874] [e959dc00] [c04a9d74] set_multi+0x174/0x1b0
[ 89.404093] [e959dc30] [c04afb68] dpaa_set_rx_mode+0x68/0xe0
[ 89.409745] [e959dc40] [c057baf8] __dev_mc_add+0x58/0x80
[ 89.415052] [e959dc60] [c060fd64] igmp_group_added+0x164/0x190
[ 89.420878] [e959dca0] [c060ffa8] ip_mc_inc_group+0x218/0x460
[ 89.426617] [e959dce0] [c06120fc] ip_mc_up+0x3c/0x190
[ 89.431662] [e959dd10] [c0607270] inetdev_event+0x250/0x620
[ 89.437227] [e959dd50] [c005f190] notifier_call_chain+0x80/0xf0
[ 89.443138] [e959dd80] [c0573a74] __dev_notify_flags+0x54/0xf0
[ 89.448964] [e959dda0] [c05743f8] dev_change_flags+0x48/0x60
[ 89.454615] [e959ddc0] [c0606744] devinet_ioctl+0x544/0x8a0
[ 89.460180] [e959de10] [c060987c] inet_ioctl+0x9c/0x1f0
[ 89.465400] [e959de80] [c05479a8] sock_ioctl+0x168/0x460
[ 89.470708] [e959ded0] [c01cf3ec] do_vfs_ioctl+0xac/0x8c0
[ 89.476099] [e959df20] [c01cfc40] SyS_ioctl+0x40/0xc0
[ 89.481147] [e959df40] [c0011318] ret_from_syscall+0x0/0x3c
[ 89.486715] --- interrupt: c01 at 0x1006943c
[ 89.486715] LR = 0x100c45ec
Signed-off-by: Denis Kirjanov <kda@linux-powerpc.org>
Acked-by: Madalin Bucur <madalin.bucur@nxp.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
|
|
Paul Blakey says:
====================
rhashtable: Fix rhltable duplicates insertion
On our mlx5 driver fs_core.c, we use the rhltable interface to store
flow groups. We noticed that sometimes we get a warning that flow group isn't
found at removal. This rare case was caused when a specific scenario happened,
insertion of a flow group with a similar match criteria (a duplicate),
but only where the flow group rhash_head was second (or not first)
on the relevant rhashtable bucket list.
The first patch fixes it, and the second one adds a test that show
it is now working.
Paul.
v3 --> v2 changes:
* added missing fix in rhashtable_lookup_one code path as well.
v1 --> v2 changes:
* Changed commit messages to better reflect the change
====================
Signed-off-by: David S. Miller <davem@davemloft.net>
|
|
Tries to insert duplicates in the middle of bucket's chain:
bucket 1: [[val 21 (tid=1)]] -> [[ val 1 (tid=2), val 1 (tid=0) ]]
Reuses tid to distinguish the elements insertion order.
Signed-off-by: Paul Blakey <paulb@mellanox.com>
Acked-by: Herbert Xu <herbert@gondor.apana.org.au>
Signed-off-by: David S. Miller <davem@davemloft.net>
|
|
When inserting duplicate objects (those with the same key),
current rhlist implementation messes up the chain pointers by
updating the bucket pointer instead of prev next pointer to the
newly inserted node. This causes missing elements on removal and
travesal.
Fix that by properly updating pprev pointer to point to
the correct rhash_head next pointer.
Issue: 1241076
Change-Id: I86b2c140bcb4aeb10b70a72a267ff590bb2b17e7
Fixes: ca26893f05e8 ('rhashtable: Add rhlist interface')
Signed-off-by: Paul Blakey <paulb@mellanox.com>
Acked-by: Herbert Xu <herbert@gondor.apana.org.au>
Signed-off-by: David S. Miller <davem@davemloft.net>
|
|
The Stream Buffer for EtherAVB-IF (STBE) is an optional component, and
is not present on all SoCs.
Document this in the DT bindings, including a list of SoCs that do have
it.
Fixes: 785ec87483d1e24a ("ravb: document R8A77970 bindings")
Fixes: f231c4178a655b09 ("dt-bindings: net: renesas-ravb: Add support for R8A77995 RAVB")
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Reviewed-by: Simon Horman <horms+renesas@verge.net.au>
Acked-by: Sergei Shtylyov <sergei.shtylyov@cogentembedded.com>
Reviewed-by: Rob Herring <robh@kernel.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
|
|
If there is another bridge after analogix_dp, then the connector object
should not be created. This fixes following timeouts on Exynos5420-based
Chromebook2 Peach-PIT board during boot:
exynos-dp 145b0000.dp-controller: AUX CH cmd reply timeout!
exynos-dp 145b0000.dp-controller: AUX CH enable timeout!
exynos-dp 145b0000.dp-controller: AUX CH enable timeout!
exynos-dp 145b0000.dp-controller: AUX CH enable timeout!
exynos-dp 145b0000.dp-controller: AUX CH enable timeout!
Signed-off-by: Marek Szyprowski <m.szyprowski@samsung.com>
Tested-by: Heiko Stuebner <heiko@sntech.de>
Signed-off-by: Andrzej Hajda <a.hajda@samsung.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20180305085741.18896-4-m.szyprowski@samsung.com
|
|
Enabling runtime power management early in analogix_dp_bind() causes following
kernel NULL pointer dereference:
Unable to handle kernel NULL pointer dereference at virtual address 000007d8
pgd = 28ffa2e4
[000007d8] *pgd=00000000
Internal error: Oops: 5 [#1] PREEMPT SMP ARM
Modules linked in:
CPU: 6 PID: 69 Comm: kworker/6:1 Not tainted 4.16.0-rc1-00062-ge25751974ba8 #3622
Hardware name: SAMSUNG EXYNOS (Flattened Device Tree)
Workqueue: events deferred_probe_work_func
PC is at analogix_dp_resume+0x8/0xc0
LR is at pm_generic_runtime_resume+0x2c/0x38
pc : [<c0531b98>] lr : [<c0543fec>] psr: a0000113
sp : ee13fbd8 ip : 0000001a fp : 00000001
r10: ee0eb080 r9 : c0552bd8 r8 : c0fb1d98
r7 : eebb1010 r6 : eeae9808 r5 : 00000000 r4 : d4850415
r3 : ee0ed010 r2 : b2d05e00 r1 : 00000000 r0 : 00000000
Flags: NzCv IRQs on FIQs on Mode SVC_32 ISA ARM Segment none
Control: 10c5387d Table: 2000406a DAC: 00000051
Process kworker/6:1 (pid: 69, stack limit = 0x913205b4)
Stack: (0xee13fbd8 to 0xee140000)
...
[<c0531b98>] (analogix_dp_resume) from [<c0543fec>] (pm_generic_runtime_resume+0x2c/0x38)
[<c0543fec>] (pm_generic_runtime_resume) from [<c054ffb4>] (__genpd_runtime_resume+0x2c/0x8c)
[<c054ffb4>] (__genpd_runtime_resume) from [<c0552d24>] (genpd_runtime_resume+0x14c/0x258)
[<c0552d24>] (genpd_runtime_resume) from [<c0547798>] (__rpm_callback+0x134/0x214)
[<c0547798>] (__rpm_callback) from [<c0547898>] (rpm_callback+0x20/0x80)
[<c0547898>] (rpm_callback) from [<c0546ff4>] (rpm_resume+0x3a0/0x734)
[<c0546ff4>] (rpm_resume) from [<c05475ec>] (__pm_runtime_resume+0x64/0x9c)
[<c05475ec>] (__pm_runtime_resume) from [<c053b95c>] (__device_attach+0x8c/0x134)
[<c053b95c>] (__device_attach) from [<c053ad08>] (bus_probe_device+0x88/0x90)
[<c053ad08>] (bus_probe_device) from [<c05390d0>] (device_add+0x3a8/0x580)
[<c05390d0>] (device_add) from [<c06764c4>] (i2c_register_adapter+0xd4/0x3ec)
[<c06764c4>] (i2c_register_adapter) from [<c05321c8>] (analogix_dp_bind+0x2a0/0x410)
[<c05321c8>] (analogix_dp_bind) from [<c0528e90>] (exynos_dp_bind+0x9c/0x12c)
[<c0528e90>] (exynos_dp_bind) from [<c0535bc4>] (component_bind_all+0xfc/0x258)
[<c0535bc4>] (component_bind_all) from [<c0522ee8>] (exynos_drm_bind+0x15c/0x28c)
[<c0522ee8>] (exynos_drm_bind) from [<c0536378>] (try_to_bring_up_master+0x1b8/0x29c)
[<c0536378>] (try_to_bring_up_master) from [<c05364fc>] (component_add+0xa0/0x170)
[<c05364fc>] (component_add) from [<c0528fe4>] (exynos_dp_probe+0x64/0xb8)
[<c0528fe4>] (exynos_dp_probe) from [<c053debc>] (platform_drv_probe+0x50/0xb0)
[<c053debc>] (platform_drv_probe) from [<c053bd18>] (driver_probe_device+0x2b8/0x4a0)
[<c053bd18>] (driver_probe_device) from [<c0539e4c>] (bus_for_each_drv+0x44/0x8c)
[<c0539e4c>] (bus_for_each_drv) from [<c053b970>] (__device_attach+0xa0/0x134)
[<c053b970>] (__device_attach) from [<c053ad08>] (bus_probe_device+0x88/0x90)
[<c053ad08>] (bus_probe_device) from [<c053b258>] (deferred_probe_work_func+0x3c/0x168)
[<c053b258>] (deferred_probe_work_func) from [<c014352c>] (process_one_work+0x1d0/0x7bc)
[<c014352c>] (process_one_work) from [<c0143b84>] (worker_thread+0x34/0x4dc)
[<c0143b84>] (worker_thread) from [<c014a30c>] (kthread+0x128/0x164)
[<c014a30c>] (kthread) from [<c01010b4>] (ret_from_fork+0x14/0x20)
Exception stack(0xee13ffb0 to 0xee13fff8)
ffa0: 00000000 00000000 00000000 00000000
ffc0: 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
ffe0: 00000000 00000000 00000000 00000000 00000013 00000000
Code: e2800e37 eafee601 e92d4070 e1a05000 (e59067d8)
---[ end trace bf6046013df7cab2 ]---
This oops happens, because analogix_dp_bind() calls drm_dp_aux_register()
which registers i2c adapter. I2C core tries to runtime get i2c host
device during registration. This ends in analogix_dp_resume(), but dp
context is NULL there. dp context is set in exynos_dp_bind() after
executing analogix_dp_bind(). Fix this issue by postponing enabling runtime
power management after drm_dp_aux_register().
Signed-off-by: Marek Szyprowski <m.szyprowski@samsung.com>
Tested-by: Heiko Stuebner <heiko@sntech.de>
Reviewed-by: Heiko Stuebner <heiko@sntech.de>
Signed-off-by: Andrzej Hajda <a.hajda@samsung.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20180305085741.18896-3-m.szyprowski@samsung.com
|
|
The bridge does not need to be powered in analogix_dp_bind(), so
remove the calls to pm_runtime_get()/phy_power_on()/analogix_dp_init_dp()
as well as their power-off counterparts.
Cc: Stéphane Marchesin <marcheu@chromium.org>
Signed-off-by: zain wang <wzz@rock-chips.com>
Signed-off-by: Caesar Wang <wxt@rock-chips.com>
[the patch originally just removed the power_on portion, seanpaul removed
the power off code as well as improved the commit message]
Signed-off-by: Sean Paul <seanpaul@chromium.org>
Signed-off-by: Thierry Escande <thierry.escande@collabora.com>
Signed-off-by: Marek Szyprowski <m.szyprowski@samsung.com>
Tested-by: Heiko Stuebner <heiko@sntech.de>
Reviewed-by: Heiko Stuebner <heiko@sntech.de>
Signed-off-by: Andrzej Hajda <a.hajda@samsung.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20180305085741.18896-2-m.szyprowski@samsung.com
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