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This is the 5.2.34 stable release
# gpg: Signature made Sat 07 Mar 2020 07:25:00 PM EST
# gpg: using RSA key EBCE84042C07D1D6
# gpg: Can't check signature: No public key
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commit f667216c5c7c967c3e568cdddefb51fe606bfe26 upstream.
The erratum A-009204 workaround patch was reverted because of
incorrect implementation.
8b6dc6b mmc: sdhci-of-esdhc: Revert "mmc: sdhci-of-esdhc: add
erratum A-009204 support"
This patch is to re-implement the workaround (add a 5 ms delay
before setting SYSCTL[RSTD] to make sure all the DMA transfers
are finished).
Signed-off-by: Yangbo Lu <yangbo.lu@nxp.com>
Link: https://lore.kernel.org/r/20191219032335.26528-1-yangbo.lu@nxp.com
Fixes: 5dd195522562 ("mmc: sdhci-of-esdhc: add erratum A-009204 support")
Cc: stable@vger.kernel.org
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
Signed-off-by: Paul Gortmaker <paul.gortmaker@windriver.com>
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commit 8a3cc29c316c17de590e3ff8b59f3d6cbfd37b0a upstream.
When we receive a new packet from the guest, we check if the
src_cid is correct, but we forgot to check the dst_cid.
The host should accept only packets where dst_cid is
equal to the host CID.
Signed-off-by: Stefano Garzarella <sgarzare@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Paul Gortmaker <paul.gortmaker@windriver.com>
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commit 24dee0c7478d1a1e00abdf5625b7f921467325dc upstream.
In netpoll the napi handler could be called with budget equal to zero.
Current ENA napi handler doesn't take that into consideration.
The napi handler handles Rx packets in a do-while loop.
Currently, the budget check happens only after decrementing the
budget, therefore the napi handler, in rare cases, could run over
MAX_INT packets.
In addition to that, this moves all budget related variables to int
calculation and stop mixing u32 to avoid ambiguity
Fixes: 1738cd3ed342 ("net: ena: Add a driver for Amazon Elastic Network Adapters (ENA)")
Signed-off-by: Netanel Belgazal <netanel@amazon.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Paul Gortmaker <paul.gortmaker@windriver.com>
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commit 6adc4601c2a1ac87b4ab8ed0cb55db6efd0264e8 upstream.
After executing "ethtool -C eth0 rx-usecs-irq 0", the box becomes
unresponsive, likely due to interrupt livelock. It appears that
a minimum clamp value for the irq timer is computed, but is never
applied.
Fix by applying the corrected clamp value.
Fixes: 74706afa712d ("bnxt_en: Update interrupt coalescing logic.")
Signed-off-by: Jonathan Lemon <jonathan.lemon@gmail.com>
Signed-off-by: Michael Chan <michael.chan@broadcom.com>
Signed-off-by: Jakub Kicinski <jakub.kicinski@netronome.com>
Signed-off-by: Paul Gortmaker <paul.gortmaker@windriver.com>
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commit 6b01b1d9b2d38dc84ac398bfe9f00baff06a31e5 upstream.
GTP RX packet path lookups pdp context with TID. If duplicate TID pdp
contexts are existing in the list, it couldn't select correct pdp context.
So, TID value should be unique.
GTP TX packet path lookups pdp context with ms_addr. If duplicate ms_addr pdp
contexts are existing in the list, it couldn't select correct pdp context.
So, ms_addr value should be unique.
Fixes: 459aa660eb1d ("gtp: add initial driver for datapath of GPRS Tunneling Protocol (GTP-U)")
Signed-off-by: Taehee Yoo <ap420073@gmail.com>
Signed-off-by: Jakub Kicinski <jakub.kicinski@netronome.com>
Signed-off-by: Paul Gortmaker <paul.gortmaker@windriver.com>
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commit 94dc550a5062030569d4aa76e10e50c8fc001930 upstream.
ipv4_pdp_find() is called in TX packet path of GTP.
ipv4_pdp_find() internally uses gtp->tid_hash to lookup pdp context.
In the current code, gtp->tid_hash and gtp->addr_hash are freed by
->dellink(), which is gtp_dellink().
But gtp_dellink() would be called while packets are processing.
So, gtp_dellink() should not free gtp->tid_hash and gtp->addr_hash.
Instead, dev->priv_destructor() would be used because this callback
is called after all packet processing safely.
Test commands:
ip link add veth1 type veth peer name veth2
ip a a 172.0.0.1/24 dev veth1
ip link set veth1 up
ip a a 172.99.0.1/32 dev lo
gtp-link add gtp1 &
gtp-tunnel add gtp1 v1 200 100 172.99.0.2 172.0.0.2
ip r a 172.99.0.2/32 dev gtp1
ip link set gtp1 mtu 1500
ip netns add ns2
ip link set veth2 netns ns2
ip netns exec ns2 ip a a 172.0.0.2/24 dev veth2
ip netns exec ns2 ip link set veth2 up
ip netns exec ns2 ip a a 172.99.0.2/32 dev lo
ip netns exec ns2 ip link set lo up
ip netns exec ns2 gtp-link add gtp2 &
ip netns exec ns2 gtp-tunnel add gtp2 v1 100 200 172.99.0.1 172.0.0.1
ip netns exec ns2 ip r a 172.99.0.1/32 dev gtp2
ip netns exec ns2 ip link set gtp2 mtu 1500
hping3 172.99.0.2 -2 --flood &
ip link del gtp1
Splat looks like:
[ 72.568081][ T1195] BUG: KASAN: use-after-free in ipv4_pdp_find.isra.12+0x130/0x170 [gtp]
[ 72.568916][ T1195] Read of size 8 at addr ffff8880b9a35d28 by task hping3/1195
[ 72.569631][ T1195]
[ 72.569861][ T1195] CPU: 2 PID: 1195 Comm: hping3 Not tainted 5.5.0-rc1 #199
[ 72.570547][ T1195] Hardware name: innotek GmbH VirtualBox/VirtualBox, BIOS VirtualBox 12/01/2006
[ 72.571438][ T1195] Call Trace:
[ 72.571764][ T1195] dump_stack+0x96/0xdb
[ 72.572171][ T1195] ? ipv4_pdp_find.isra.12+0x130/0x170 [gtp]
[ 72.572761][ T1195] print_address_description.constprop.5+0x1be/0x360
[ 72.573400][ T1195] ? ipv4_pdp_find.isra.12+0x130/0x170 [gtp]
[ 72.573971][ T1195] ? ipv4_pdp_find.isra.12+0x130/0x170 [gtp]
[ 72.574544][ T1195] __kasan_report+0x12a/0x16f
[ 72.575014][ T1195] ? ipv4_pdp_find.isra.12+0x130/0x170 [gtp]
[ 72.575593][ T1195] kasan_report+0xe/0x20
[ 72.576004][ T1195] ipv4_pdp_find.isra.12+0x130/0x170 [gtp]
[ 72.576577][ T1195] gtp_build_skb_ip4+0x199/0x1420 [gtp]
[ ... ]
[ 72.647671][ T1195] BUG: unable to handle page fault for address: ffff8880b9a35d28
[ 72.648512][ T1195] #PF: supervisor read access in kernel mode
[ 72.649158][ T1195] #PF: error_code(0x0000) - not-present page
[ 72.649849][ T1195] PGD a6c01067 P4D a6c01067 PUD 11fb07067 PMD 11f939067 PTE 800fffff465ca060
[ 72.652958][ T1195] Oops: 0000 [#1] SMP DEBUG_PAGEALLOC KASAN PTI
[ 72.653834][ T1195] CPU: 2 PID: 1195 Comm: hping3 Tainted: G B 5.5.0-rc1 #199
[ 72.668062][ T1195] RIP: 0010:ipv4_pdp_find.isra.12+0x86/0x170 [gtp]
[ ... ]
[ 72.679168][ T1195] Call Trace:
[ 72.679603][ T1195] gtp_build_skb_ip4+0x199/0x1420 [gtp]
[ 72.681915][ T1195] ? ipv4_pdp_find.isra.12+0x170/0x170 [gtp]
[ 72.682513][ T1195] ? lock_acquire+0x164/0x3b0
[ 72.682966][ T1195] ? gtp_dev_xmit+0x35e/0x890 [gtp]
[ 72.683481][ T1195] gtp_dev_xmit+0x3c2/0x890 [gtp]
[ ... ]
Fixes: 459aa660eb1d ("gtp: add initial driver for datapath of GPRS Tunneling Protocol (GTP-U)")
Signed-off-by: Taehee Yoo <ap420073@gmail.com>
Signed-off-by: Jakub Kicinski <jakub.kicinski@netronome.com>
Signed-off-by: Paul Gortmaker <paul.gortmaker@windriver.com>
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commit c39ea5cba5a2e97fc01b78c85208bf31383b399c upstream.
Host can provide send indirection table messages anytime after RSS is
enabled by calling rndis_filter_set_rss_param(). So the host provided
table values may be overwritten by the initialization in
rndis_set_subchannel().
To prevent this problem, move the tx_table initialization before calling
rndis_filter_set_rss_param().
Fixes: a6fb6aa3cfa9 ("hv_netvsc: Set tx_table to equal weight after subchannels open")
Signed-off-by: Haiyang Zhang <haiyangz@microsoft.com>
Signed-off-by: Jakub Kicinski <jakub.kicinski@netronome.com>
Signed-off-by: Paul Gortmaker <paul.gortmaker@windriver.com>
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commit 6a902c0f31993ab02e1b6ea7085002b9c9083b6a upstream.
GTP default hashtable size is 1024 and userspace could set specific
hashtable size with IFLA_GTP_PDP_HASHSIZE. If hashtable size is set to 0
from userspace, hashtable will not work and panic will occur.
Fixes: 459aa660eb1d ("gtp: add initial driver for datapath of GPRS Tunneling Protocol (GTP-U)")
Signed-off-by: Taehee Yoo <ap420073@gmail.com>
Signed-off-by: Jakub Kicinski <jakub.kicinski@netronome.com>
Signed-off-by: Paul Gortmaker <paul.gortmaker@windriver.com>
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commit 94a6d9fb88df43f92d943c32b84ce398d50bf49f upstream.
gtp_genl_dump_pdp() is ->dumpit() callback of GTP module and it is used
to dump pdp contexts. it would be re-executed because of dump packet size.
If dump packet size is too big, it saves current dump pointer
(gtp interface pointer, bucket, TID value) then it restarts dump from
last pointer.
Current GTP code allows adding zero TID pdp context but dump code
ignores zero TID value. So, last dump pointer will not be found.
In addition, this patch adds missing rcu_read_lock() in
gtp_genl_dump_pdp().
Fixes: 459aa660eb1d ("gtp: add initial driver for datapath of GPRS Tunneling Protocol (GTP-U)")
Signed-off-by: Taehee Yoo <ap420073@gmail.com>
Signed-off-by: Jakub Kicinski <jakub.kicinski@netronome.com>
Signed-off-by: Paul Gortmaker <paul.gortmaker@windriver.com>
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commit a635037ac1106202118a6cccc83c877caa6e1c9a upstream.
gtp_encap_disable() in gtp_dellink() is unnecessary because it will be
called by unregister_netdevice().
unregister_netdevice() internally calls gtp_dev_uninit() by ->ndo_uninit().
And gtp_dev_uninit() calls gtp_encap_disable().
Signed-off-by: Taehee Yoo <ap420073@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Paul Gortmaker <paul.gortmaker@windriver.com>
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commit f3f2364ea14d1cf6bf966542f31eadcf178f1577 upstream.
phylink requires the MAC to report when its link status changes when
operating in inband modes. Failure to report link status changes
means that phylink has no idea when the link events happen, which
results in either the network interface's carrier remaining up or
remaining permanently down.
For example, with a fiber module, if the interface is brought up and
link is initially established, taking the link down at the far end
will cut the optical power. The SFP module's LOS asserts, we
deactivate the link, and the network interface reports no carrier.
When the far end is brought back up, the SFP module's LOS deasserts,
but the MAC may be slower to establish link. If this happens (which
in my tests is a certainty) then phylink never hears that the MAC
has established link with the far end, and the network interface is
stuck reporting no carrier. This means the interface is
non-functional.
Avoiding the link interrupt when we have phylink is basically not
an option, so remove the !port->phylink from the test.
Fixes: 4bb043262878 ("net: mvpp2: phylink support")
Tested-by: Sven Auhagen <sven.auhagen@voleatech.de>
Tested-by: Antoine Tenart <antoine.tenart@bootlin.com>
Signed-off-by: Russell King <rmk+kernel@armlinux.org.uk>
Signed-off-by: Jakub Kicinski <jakub.kicinski@netronome.com>
Signed-off-by: Paul Gortmaker <paul.gortmaker@windriver.com>
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commit 6e9105c73f8d2163d12d5dfd762fd75483ed30f5 upstream.
When do IPv6 tunnel PMTU update and calls __ip6_rt_update_pmtu() in the end,
we should not call dst_confirm_neigh() as there is no two-way communication.
Although GTP only support ipv4 right now, and __ip_rt_update_pmtu() does not
call dst_confirm_neigh(), we still set it to false to keep consistency with
IPv6 code.
v5: No change.
v4: No change.
v3: Do not remove dst_confirm_neigh, but add a new bool parameter in
dst_ops.update_pmtu to control whether we should do neighbor confirm.
Also split the big patch to small ones for each area.
v2: Remove dst_confirm_neigh in __ip6_rt_update_pmtu.
Reviewed-by: Guillaume Nault <gnault@redhat.com>
Acked-by: David Ahern <dsahern@gmail.com>
Signed-off-by: Hangbin Liu <liuhangbin@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Paul Gortmaker <paul.gortmaker@windriver.com>
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commit bd085ef678b2cc8c38c105673dfe8ff8f5ec0c57 upstream.
The MTU update code is supposed to be invoked in response to real
networking events that update the PMTU. In IPv6 PMTU update function
__ip6_rt_update_pmtu() we called dst_confirm_neigh() to update neighbor
confirmed time.
But for tunnel code, it will call pmtu before xmit, like:
- tnl_update_pmtu()
- skb_dst_update_pmtu()
- ip6_rt_update_pmtu()
- __ip6_rt_update_pmtu()
- dst_confirm_neigh()
If the tunnel remote dst mac address changed and we still do the neigh
confirm, we will not be able to update neigh cache and ping6 remote
will failed.
So for this ip_tunnel_xmit() case, _EVEN_ if the MTU is changed, we
should not be invoking dst_confirm_neigh() as we have no evidence
of successful two-way communication at this point.
On the other hand it is also important to keep the neigh reachability fresh
for TCP flows, so we cannot remove this dst_confirm_neigh() call.
To fix the issue, we have to add a new bool parameter for dst_ops.update_pmtu
to choose whether we should do neigh update or not. I will add the parameter
in this patch and set all the callers to true to comply with the previous
way, and fix the tunnel code one by one on later patches.
v5: No change.
v4: No change.
v3: Do not remove dst_confirm_neigh, but add a new bool parameter in
dst_ops.update_pmtu to control whether we should do neighbor confirm.
Also split the big patch to small ones for each area.
v2: Remove dst_confirm_neigh in __ip6_rt_update_pmtu.
Suggested-by: David Miller <davem@davemloft.net>
Reviewed-by: Guillaume Nault <gnault@redhat.com>
Acked-by: David Ahern <dsahern@gmail.com>
Signed-off-by: Hangbin Liu <liuhangbin@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Paul Gortmaker <paul.gortmaker@windriver.com>
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commit 314bd842d98e1035cc40b671a71e07f48420e58f upstream.
When a router interface (RIF) is created the MAC address of the backing
netdev is verified to have the same MSBs as existing RIFs. This is
required in order to avoid changing existing RIF MAC addresses that all
share the same MSBs.
Loopback RIFs are special in this regard as they do not have a MAC
address, given they are only used to loop packets from the overlay to
the underlay.
Without this change, an error is returned when trying to create a RIF
after the creation of a GRE tunnel that is represented by a loopback
RIF. 'rif->dev->dev_addr' points to the GRE device's local IP, which
does not share the same MSBs as physical interfaces. Adding an IP
address to any physical interface results in:
Error: mlxsw_spectrum: All router interface MAC addresses must have the
same prefix.
Fix this by skipping loopback RIFs during MAC validation.
Fixes: 74bc99397438 ("mlxsw: spectrum_router: Veto unsupported RIF MAC addresses")
Signed-off-by: Amit Cohen <amitc@mellanox.com>
Signed-off-by: Ido Schimmel <idosch@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Paul Gortmaker <paul.gortmaker@windriver.com>
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commit c74751f4c39232c31214ec6a3bc1c7e62f5c728b upstream.
If any change happened in the configuration of VF in VM while
collecting live dump, there could be a race and firmware can return
more data than allocated dump length. Fix it by keeping track of
the accumulated core dump length copied so far and abort the copy
with error code if the next chunk of core dump will exceed the
original dump length.
Fixes: 6c5657d085ae ("bnxt_en: Add support for ethtool get dump.")
Signed-off-by: Vasundhara Volam <vasundhara-v.volam@broadcom.com>
Signed-off-by: Michael Chan <michael.chan@broadcom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Paul Gortmaker <paul.gortmaker@windriver.com>
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commit 0c722ec0a289c7f6b53f89bad1cfb7c4db3f7a62 upstream.
The logic needs to check both bp->total_irqs and the reserved IRQs in
hw_resc->resv_irqs if applicable and see if both are enough to cover
the L2 and RDMA requested vectors. The current code is only checking
bp->total_irqs and can fail in some code paths, such as the TX timeout
code path with the RDMA driver requesting vectors after recovery. In
this code path, we have not reserved enough MSIX resources for the
RDMA driver yet.
Fixes: 75720e6323a1 ("bnxt_en: Keep track of reserved IRQs.")
Signed-off-by: Michael Chan <michael.chan@broadcom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Paul Gortmaker <paul.gortmaker@windriver.com>
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commit 75718584cb3c64e6269109d4d54f888ac5a5fd15 upstream.
There is a bug in ptp_clock_unregister(), where ptp_cleanup_pin_groups()
first frees ptp->pin_{,dev_}attr, but then posix_clock_unregister() needs
them to destroy a related sysfs device.
These functions can not be just swapped, as posix_clock_unregister() frees
ptp which is needed in the ptp_cleanup_pin_groups(). Fix this by calling
ptp_cleanup_pin_groups() in ptp_clock_release(), right before ptp is freed.
This makes this patch fix an UAF bug in a patch which fixes an UAF bug.
Reported-by: Antti Laakso <antti.laakso@intel.com>
Fixes: a33121e5487b ("ptp: fix the race between the release of ptp_clock and cdev")
Link: https://lore.kernel.org/netdev/3d2bd09735dbdaf003585ca376b7c1e5b69a19bd.camel@intel.com/
Signed-off-by: Vladis Dronov <vdronov@redhat.com>
Acked-by: Richard Cochran <richardcochran@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Paul Gortmaker <paul.gortmaker@windriver.com>
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commit a33121e5487b424339636b25c35d3a180eaa5f5e upstream.
In a case when a ptp chardev (like /dev/ptp0) is open but an underlying
device is removed, closing this file leads to a race. This reproduces
easily in a kvm virtual machine:
ts# cat openptp0.c
int main() { ... fp = fopen("/dev/ptp0", "r"); ... sleep(10); }
ts# uname -r
5.5.0-rc3-46cf053e
ts# cat /proc/cmdline
... slub_debug=FZP
ts# modprobe ptp_kvm
ts# ./openptp0 &
[1] 670
opened /dev/ptp0, sleeping 10s...
ts# rmmod ptp_kvm
ts# ls /dev/ptp*
ls: cannot access '/dev/ptp*': No such file or directory
ts# ...woken up
[ 48.010809] general protection fault: 0000 [#1] SMP
[ 48.012502] CPU: 6 PID: 658 Comm: openptp0 Not tainted 5.5.0-rc3-46cf053e #25
[ 48.014624] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), ...
[ 48.016270] RIP: 0010:module_put.part.0+0x7/0x80
[ 48.017939] RSP: 0018:ffffb3850073be00 EFLAGS: 00010202
[ 48.018339] RAX: 000000006b6b6b6b RBX: 6b6b6b6b6b6b6b6b RCX: ffff89a476c00ad0
[ 48.018936] RDX: fffff65a08d3ea08 RSI: 0000000000000247 RDI: 6b6b6b6b6b6b6b6b
[ 48.019470] ... ^^^ a slub poison
[ 48.023854] Call Trace:
[ 48.024050] __fput+0x21f/0x240
[ 48.024288] task_work_run+0x79/0x90
[ 48.024555] do_exit+0x2af/0xab0
[ 48.024799] ? vfs_write+0x16a/0x190
[ 48.025082] do_group_exit+0x35/0x90
[ 48.025387] __x64_sys_exit_group+0xf/0x10
[ 48.025737] do_syscall_64+0x3d/0x130
[ 48.026056] entry_SYSCALL_64_after_hwframe+0x44/0xa9
[ 48.026479] RIP: 0033:0x7f53b12082f6
[ 48.026792] ...
[ 48.030945] Modules linked in: ptp i6300esb watchdog [last unloaded: ptp_kvm]
[ 48.045001] Fixing recursive fault but reboot is needed!
This happens in:
static void __fput(struct file *file)
{ ...
if (file->f_op->release)
file->f_op->release(inode, file); <<< cdev is kfree'd here
if (unlikely(S_ISCHR(inode->i_mode) && inode->i_cdev != NULL &&
!(mode & FMODE_PATH))) {
cdev_put(inode->i_cdev); <<< cdev fields are accessed here
Namely:
__fput()
posix_clock_release()
kref_put(&clk->kref, delete_clock) <<< the last reference
delete_clock()
delete_ptp_clock()
kfree(ptp) <<< cdev is embedded in ptp
cdev_put
module_put(p->owner) <<< *p is kfree'd, bang!
Here cdev is embedded in posix_clock which is embedded in ptp_clock.
The race happens because ptp_clock's lifetime is controlled by two
refcounts: kref and cdev.kobj in posix_clock. This is wrong.
Make ptp_clock's sysfs device a parent of cdev with cdev_device_add()
created especially for such cases. This way the parent device with its
ptp_clock is not released until all references to the cdev are released.
This adds a requirement that an initialized but not exposed struct
device should be provided to posix_clock_register() by a caller instead
of a simple dev_t.
This approach was adopted from the commit 72139dfa2464 ("watchdog: Fix
the race between the release of watchdog_core_data and cdev"). See
details of the implementation in the commit 233ed09d7fda ("chardev: add
helper function to register char devs with a struct device").
Link: https://lore.kernel.org/linux-fsdevel/20191125125342.6189-1-vdronov@redhat.com/T/#u
Analyzed-by: Stephen Johnston <sjohnsto@redhat.com>
Analyzed-by: Vern Lovejoy <vlovejoy@redhat.com>
Signed-off-by: Vladis Dronov <vdronov@redhat.com>
Acked-by: Richard Cochran <richardcochran@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Paul Gortmaker <paul.gortmaker@windriver.com>
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commit bd6f48546b9cb7a785344fc78058c420923d7ed8 upstream.
GXBB and newer SoCs use the fixed FCLK_DIV2 (1GHz) clock as input for
the m250_sel clock. Meson8b and Meson8m2 use MPLL2 instead, whose rate
can be adjusted at runtime.
So far we have been running MPLL2 with ~250MHz (and the internal
m250_div with value 1), which worked enough that we could transfer data
with an TX delay of 4ns. Unfortunately there is high packet loss with
an RGMII PHY when transferring data (receiving data works fine though).
Odroid-C1's u-boot is running with a TX delay of only 2ns as well as
the internal m250_div set to 2 - no lost (TX) packets can be observed
with that setting in u-boot.
Manual testing has shown that the TX packet loss goes away when using
the following settings in Linux (the vendor kernel uses the same
settings):
- MPLL2 clock set to ~500MHz
- m250_div set to 2
- TX delay set to 2ns on the MAC side
Update the m250_div divider settings to only accept dividers greater or
equal 2 to fix the TX delay generated by the MAC.
iperf3 results before the change:
[ ID] Interval Transfer Bitrate Retr
[ 5] 0.00-10.00 sec 182 MBytes 153 Mbits/sec 514 sender
[ 5] 0.00-10.00 sec 182 MBytes 152 Mbits/sec receiver
iperf3 results after the change (including an updated TX delay of 2ns):
[ ID] Interval Transfer Bitrate Retr Cwnd
[ 5] 0.00-10.00 sec 927 MBytes 778 Mbits/sec 0 sender
[ 5] 0.00-10.01 sec 927 MBytes 777 Mbits/sec receiver
Fixes: 4f6a71b84e1afd ("net: stmmac: dwmac-meson8b: fix internal RGMII clock configuration")
Signed-off-by: Martin Blumenstingl <martin.blumenstingl@googlemail.com>
Reviewed-by: Andrew Lunn <andrew@lunn.ch>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Paul Gortmaker <paul.gortmaker@windriver.com>
|
|
commit 1c93fb45761e79b3c00080e71523886cefaf351c upstream.
The suspend/resume code for AQR107 works on AQR105 too.
This patch fixes issues with the partner not seeing the link down
when the interface using AQR105 is brought down.
Fixes: bee8259dd31f ("net: phy: add driver for aquantia phy")
Signed-off-by: Madalin Bucur <madalin.bucur@oss.nxp.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Paul Gortmaker <paul.gortmaker@windriver.com>
|
|
commit a5bcd72e054aabb93ddc51ed8cde36a5bfc50271 upstream.
The burning process requires to perform internal allocations of large
chunks of memory. This memory doesn't need to be contiguous and can be
safely allocated by vzalloc() instead of kzalloc(). This patch changes
such allocation to avoid possible out-of-memory failure.
Fixes: 410ed13cae39 ("Add the mlxfw module for Mellanox firmware flash process")
Signed-off-by: Vladyslav Tarasiuk <vladyslavt@mellanox.com>
Reviewed-by: Aya Levin <ayal@mellanox.com>
Signed-off-by: Leon Romanovsky <leonro@mellanox.com>
Tested-by: Ido Schimmel <idosch@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Paul Gortmaker <paul.gortmaker@windriver.com>
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commit 7c3125f0a6ebc17846c5908ad7d6056d66c1c426 upstream.
The IP fragment is specified through user-defined field as the first
bit of the first user-defined word. We were previously trying to extract
it from the user-defined mask which could not possibly work. The ip_frag
is also supposed to be a boolean, if we do not cast it as such, we risk
overwriting the next fields in CFP_DATA(6) which would render the rule
inoperative.
Fixes: 7318166cacad ("net: dsa: bcm_sf2: Add support for ethtool::rxnfc")
Signed-off-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Paul Gortmaker <paul.gortmaker@windriver.com>
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commit 0caeaf6ad532f9be5a768a158627cb31921cc8b7 upstream.
As per 802.3-2005, Section Two, Annex 28B, Table 28B-2 [1], when
_only_ Rx pause is enabled, both symmetric and asymmetric pause
towards local device must be enabled. Also, firmware returns the local
device's flow control pause params as part of advertised capabilities
and negotiated params as part of current link attributes. So, fix up
ethtool's flow control pause params fetch logic to read from acaps,
instead of linkattr.
[1] https://standards.ieee.org/standard/802_3-2005.html
Fixes: c3168cabe1af ("cxgb4/cxgbvf: Handle 32-bit fw port capabilities")
Signed-off-by: Surendra Mobiya <surendra@chelsio.com>
Signed-off-by: Rahul Lakkireddy <rahul.lakkireddy@chelsio.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Paul Gortmaker <paul.gortmaker@windriver.com>
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commit 5bf8bec3f4ce044a223c40cbce92590d938f0e9c upstream.
The hardened usercpy code is too paranoid ever since commit 6a30afa8c1fb
("uaccess: disallow > INT_MAX copy sizes")
Code itself should have been fine as-is.
Link: http://lkml.kernel.org/r/20191106164755.31478-1-daniel.vetter@ffwll.ch
Signed-off-by: Daniel Vetter <daniel.vetter@intel.com>
Reported-by: syzbot+fb77e97ebf0612ee6914@syzkaller.appspotmail.com
Fixes: 6a30afa8c1fb ("uaccess: disallow > INT_MAX copy sizes")
Cc: Kees Cook <keescook@chromium.org>
Cc: Alexander Viro <viro@zeniv.linux.org.uk>
Cc: Stephen Rothwell <sfr@canb.auug.org.au>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Signed-off-by: Paul Gortmaker <paul.gortmaker@windriver.com>
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commit 5c9934b6767b16ba60be22ec3cbd4379ad64170d upstream.
We got another syzbot report [1] that tells us we must use
write_lock_irq()/write_unlock_irq() to avoid possible deadlock.
[1]
WARNING: inconsistent lock state
5.5.0-rc1-syzkaller #0 Not tainted
--------------------------------
inconsistent {HARDIRQ-ON-W} -> {IN-HARDIRQ-R} usage.
syz-executor826/9605 [HC1[1]:SC0[0]:HE0:SE1] takes:
ffffffff8a128718 (disc_data_lock){+-..}, at: sp_get.isra.0+0x1d/0xf0 drivers/net/ppp/ppp_synctty.c:138
{HARDIRQ-ON-W} state was registered at:
lock_acquire+0x190/0x410 kernel/locking/lockdep.c:4485
__raw_write_lock_bh include/linux/rwlock_api_smp.h:203 [inline]
_raw_write_lock_bh+0x33/0x50 kernel/locking/spinlock.c:319
sixpack_close+0x1d/0x250 drivers/net/hamradio/6pack.c:657
tty_ldisc_close.isra.0+0x119/0x1a0 drivers/tty/tty_ldisc.c:489
tty_set_ldisc+0x230/0x6b0 drivers/tty/tty_ldisc.c:585
tiocsetd drivers/tty/tty_io.c:2337 [inline]
tty_ioctl+0xe8d/0x14f0 drivers/tty/tty_io.c:2597
vfs_ioctl fs/ioctl.c:47 [inline]
file_ioctl fs/ioctl.c:545 [inline]
do_vfs_ioctl+0x977/0x14e0 fs/ioctl.c:732
ksys_ioctl+0xab/0xd0 fs/ioctl.c:749
__do_sys_ioctl fs/ioctl.c:756 [inline]
__se_sys_ioctl fs/ioctl.c:754 [inline]
__x64_sys_ioctl+0x73/0xb0 fs/ioctl.c:754
do_syscall_64+0xfa/0x790 arch/x86/entry/common.c:294
entry_SYSCALL_64_after_hwframe+0x49/0xbe
irq event stamp: 3946
hardirqs last enabled at (3945): [<ffffffff87c86e43>] __raw_spin_unlock_irq include/linux/spinlock_api_smp.h:168 [inline]
hardirqs last enabled at (3945): [<ffffffff87c86e43>] _raw_spin_unlock_irq+0x23/0x80 kernel/locking/spinlock.c:199
hardirqs last disabled at (3946): [<ffffffff8100675f>] trace_hardirqs_off_thunk+0x1a/0x1c arch/x86/entry/thunk_64.S:42
softirqs last enabled at (2658): [<ffffffff86a8b4df>] spin_unlock_bh include/linux/spinlock.h:383 [inline]
softirqs last enabled at (2658): [<ffffffff86a8b4df>] clusterip_netdev_event+0x46f/0x670 net/ipv4/netfilter/ipt_CLUSTERIP.c:222
softirqs last disabled at (2656): [<ffffffff86a8b22b>] spin_lock_bh include/linux/spinlock.h:343 [inline]
softirqs last disabled at (2656): [<ffffffff86a8b22b>] clusterip_netdev_event+0x1bb/0x670 net/ipv4/netfilter/ipt_CLUSTERIP.c:196
other info that might help us debug this:
Possible unsafe locking scenario:
CPU0
----
lock(disc_data_lock);
<Interrupt>
lock(disc_data_lock);
*** DEADLOCK ***
5 locks held by syz-executor826/9605:
#0: ffff8880a905e198 (&tty->legacy_mutex){+.+.}, at: tty_lock+0xc7/0x130 drivers/tty/tty_mutex.c:19
#1: ffffffff899a56c0 (rcu_read_lock){....}, at: mutex_spin_on_owner+0x0/0x330 kernel/locking/mutex.c:413
#2: ffff8880a496a2b0 (&(&i->lock)->rlock){-.-.}, at: spin_lock include/linux/spinlock.h:338 [inline]
#2: ffff8880a496a2b0 (&(&i->lock)->rlock){-.-.}, at: serial8250_interrupt+0x2d/0x1a0 drivers/tty/serial/8250/8250_core.c:116
#3: ffffffff8c104048 (&port_lock_key){-.-.}, at: serial8250_handle_irq.part.0+0x24/0x330 drivers/tty/serial/8250/8250_port.c:1823
#4: ffff8880a905e090 (&tty->ldisc_sem){++++}, at: tty_ldisc_ref+0x22/0x90 drivers/tty/tty_ldisc.c:288
stack backtrace:
CPU: 1 PID: 9605 Comm: syz-executor826 Not tainted 5.5.0-rc1-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
Call Trace:
<IRQ>
__dump_stack lib/dump_stack.c:77 [inline]
dump_stack+0x197/0x210 lib/dump_stack.c:118
print_usage_bug.cold+0x327/0x378 kernel/locking/lockdep.c:3101
valid_state kernel/locking/lockdep.c:3112 [inline]
mark_lock_irq kernel/locking/lockdep.c:3309 [inline]
mark_lock+0xbb4/0x1220 kernel/locking/lockdep.c:3666
mark_usage kernel/locking/lockdep.c:3554 [inline]
__lock_acquire+0x1e55/0x4a00 kernel/locking/lockdep.c:3909
lock_acquire+0x190/0x410 kernel/locking/lockdep.c:4485
__raw_read_lock include/linux/rwlock_api_smp.h:149 [inline]
_raw_read_lock+0x32/0x50 kernel/locking/spinlock.c:223
sp_get.isra.0+0x1d/0xf0 drivers/net/ppp/ppp_synctty.c:138
sixpack_write_wakeup+0x25/0x340 drivers/net/hamradio/6pack.c:402
tty_wakeup+0xe9/0x120 drivers/tty/tty_io.c:536
tty_port_default_wakeup+0x2b/0x40 drivers/tty/tty_port.c:50
tty_port_tty_wakeup+0x57/0x70 drivers/tty/tty_port.c:387
uart_write_wakeup+0x46/0x70 drivers/tty/serial/serial_core.c:104
serial8250_tx_chars+0x495/0xaf0 drivers/tty/serial/8250/8250_port.c:1761
serial8250_handle_irq.part.0+0x2a2/0x330 drivers/tty/serial/8250/8250_port.c:1834
serial8250_handle_irq drivers/tty/serial/8250/8250_port.c:1820 [inline]
serial8250_default_handle_irq+0xc0/0x150 drivers/tty/serial/8250/8250_port.c:1850
serial8250_interrupt+0xf1/0x1a0 drivers/tty/serial/8250/8250_core.c:126
__handle_irq_event_percpu+0x15d/0x970 kernel/irq/handle.c:149
handle_irq_event_percpu+0x74/0x160 kernel/irq/handle.c:189
handle_irq_event+0xa7/0x134 kernel/irq/handle.c:206
handle_edge_irq+0x25e/0x8d0 kernel/irq/chip.c:830
generic_handle_irq_desc include/linux/irqdesc.h:156 [inline]
do_IRQ+0xde/0x280 arch/x86/kernel/irq.c:250
common_interrupt+0xf/0xf arch/x86/entry/entry_64.S:607
</IRQ>
RIP: 0010:cpu_relax arch/x86/include/asm/processor.h:685 [inline]
RIP: 0010:mutex_spin_on_owner+0x247/0x330 kernel/locking/mutex.c:579
Code: c3 be 08 00 00 00 4c 89 e7 e8 e5 06 59 00 4c 89 e0 48 c1 e8 03 42 80 3c 38 00 0f 85 e1 00 00 00 49 8b 04 24 a8 01 75 96 f3 90 <e9> 2f fe ff ff 0f 0b e8 0d 19 09 00 84 c0 0f 85 ff fd ff ff 48 c7
RSP: 0018:ffffc90001eafa20 EFLAGS: 00000246 ORIG_RAX: ffffffffffffffd7
RAX: 0000000000000000 RBX: ffff88809fd9e0c0 RCX: 1ffffffff13266dd
RDX: 0000000000000000 RSI: 0000000000000008 RDI: 0000000000000000
RBP: ffffc90001eafa60 R08: 1ffff11013d22898 R09: ffffed1013d22899
R10: ffffed1013d22898 R11: ffff88809e9144c7 R12: ffff8880a905e138
R13: ffff88809e9144c0 R14: 0000000000000000 R15: dffffc0000000000
mutex_optimistic_spin kernel/locking/mutex.c:673 [inline]
__mutex_lock_common kernel/locking/mutex.c:962 [inline]
__mutex_lock+0x32b/0x13c0 kernel/locking/mutex.c:1106
mutex_lock_nested+0x16/0x20 kernel/locking/mutex.c:1121
tty_lock+0xc7/0x130 drivers/tty/tty_mutex.c:19
tty_release+0xb5/0xe90 drivers/tty/tty_io.c:1665
__fput+0x2ff/0x890 fs/file_table.c:280
____fput+0x16/0x20 fs/file_table.c:313
task_work_run+0x145/0x1c0 kernel/task_work.c:113
exit_task_work include/linux/task_work.h:22 [inline]
do_exit+0x8e7/0x2ef0 kernel/exit.c:797
do_group_exit+0x135/0x360 kernel/exit.c:895
__do_sys_exit_group kernel/exit.c:906 [inline]
__se_sys_exit_group kernel/exit.c:904 [inline]
__x64_sys_exit_group+0x44/0x50 kernel/exit.c:904
do_syscall_64+0xfa/0x790 arch/x86/entry/common.c:294
entry_SYSCALL_64_after_hwframe+0x49/0xbe
RIP: 0033:0x43fef8
Code: Bad RIP value.
RSP: 002b:00007ffdb07d2338 EFLAGS: 00000246 ORIG_RAX: 00000000000000e7
RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 000000000043fef8
RDX: 0000000000000000 RSI: 000000000000003c RDI: 0000000000000000
RBP: 00000000004bf730 R08: 00000000000000e7 R09: ffffffffffffffd0
R10: 00000000004002c8 R11: 0000000000000246 R12: 0000000000000001
R13: 00000000006d1180 R14: 0000000000000000 R15: 0000000000000000
Fixes: 6e4e2f811bad ("6pack,mkiss: fix lock inconsistency")
Signed-off-by: Eric Dumazet <edumazet@google.com>
Reported-by: syzbot <syzkaller@googlegroups.com>
Cc: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Jakub Kicinski <jakub.kicinski@netronome.com>
Signed-off-by: Paul Gortmaker <paul.gortmaker@windriver.com>
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commit 5f0af07e89199ac51cdd4f25bc303bdc703f4e9c upstream.
Make sure to only clear enabled interrupts keeping count
of the connection type.
Suggested-by: Oleksij Rempel <o.rempel@pengutronix.de>
Signed-off-by: Daniel Baluta <daniel.baluta@nxp.com>
Signed-off-by: Richard Zhu <hongxing.zhu@nxp.com>
Reviewed-by: Dong Aisheng <aisheng.dong@nxp.com>
Signed-off-by: Jassi Brar <jaswinder.singh@linaro.org>
Signed-off-by: Paul Gortmaker <paul.gortmaker@windriver.com>
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commit bf159d151a0b844be28882f39e316b5800acaa2b upstream.
Tx doorbell is handled by txdb_tasklet and doesn't
have an associated IRQ.
Anyhow, imx_mu_shutdown ignores this and tries to
free an IRQ that wasn't requested for Tx DB resulting
in the following warning:
[ 1.967644] Trying to free already-free IRQ 26
[ 1.972108] WARNING: CPU: 2 PID: 157 at kernel/irq/manage.c:1708 __free_irq+0xc0/0x358
[ 1.980024] Modules linked in:
[ 1.983088] CPU: 2 PID: 157 Comm: kworker/2:1 Tainted: G
[ 1.993524] Hardware name: Freescale i.MX8QXP MEK (DT)
[ 1.998668] Workqueue: events deferred_probe_work_func
[ 2.003812] pstate: 60000085 (nZCv daIf -PAN -UAO)
[ 2.008607] pc : __free_irq+0xc0/0x358
[ 2.012364] lr : __free_irq+0xc0/0x358
[ 2.016111] sp : ffff00001179b7e0
[ 2.019422] x29: ffff00001179b7e0 x28: 0000000000000018
[ 2.024736] x27: ffff000011233000 x26: 0000000000000004
[ 2.030053] x25: 000000000000001a x24: ffff80083bec74d4
[ 2.035369] x23: 0000000000000000 x22: ffff80083bec7588
[ 2.040686] x21: ffff80083b1fe8d8 x20: ffff80083bec7400
[ 2.046003] x19: 0000000000000000 x18: ffffffffffffffff
[ 2.051320] x17: 0000000000000000 x16: 0000000000000000
[ 2.056637] x15: ffff0000111296c8 x14: ffff00009179b517
[ 2.061953] x13: ffff00001179b525 x12: ffff000011142000
[ 2.067270] x11: ffff000011129f20 x10: ffff0000105da970
[ 2.072587] x9 : 00000000ffffffd0 x8 : 0000000000000194
[ 2.077903] x7 : 612065657266206f x6 : ffff0000111e7b09
[ 2.083220] x5 : 0000000000000003 x4 : 0000000000000000
[ 2.088537] x3 : 0000000000000000 x2 : 00000000ffffffff
[ 2.093854] x1 : 28b70f0a2b60a500 x0 : 0000000000000000
[ 2.099173] Call trace:
[ 2.101618] __free_irq+0xc0/0x358
[ 2.105021] free_irq+0x38/0x98
[ 2.108170] imx_mu_shutdown+0x90/0xb0
[ 2.111921] mbox_free_channel.part.2+0x24/0xb8
[ 2.116453] mbox_free_channel+0x18/0x28
This bug is present from the beginning of times.
Cc: Oleksij Rempel <o.rempel@pengutronix.de>
Signed-off-by: Daniel Baluta <daniel.baluta@nxp.com>
Signed-off-by: Richard Zhu <hongxing.zhu@nxp.com>
Reviewed-by: Dong Aisheng <aisheng.dong@nxp.com>
Signed-off-by: Jassi Brar <jaswinder.singh@linaro.org>
Signed-off-by: Paul Gortmaker <paul.gortmaker@windriver.com>
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commit 11108f4671bda6bf93bea5455210346a0ccbaa10 upstream.
GIEn is enabled at startup for RX doorbell mailboxes so
we need to clear the bit at shutdown in order to avoid
leaving the interrupt line enabled.
Signed-off-by: Daniel Baluta <daniel.baluta@nxp.com>
Reviewed-by: Oleksij Rempel <o.rempel@pengutronix.de>
Signed-off-by: Jassi Brar <jaswinder.singh@linaro.org>
Signed-off-by: Paul Gortmaker <paul.gortmaker@windriver.com>
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commit 6733775a92eacd612ac88afa0fd922e4ffeb2bc7 upstream.
This patch introduces support for a new architectured reply
code 0x8B indicating that a hypervisor layer (if any) has
rejected an ap message.
Linux may run as a guest on top of a hypervisor like zVM
or KVM. So the crypto hardware seen by the ap bus may be
restricted by the hypervisor for example only a subset like
only clear key crypto requests may be supported. Other
requests will be filtered out - rejected by the hypervisor.
The new reply code 0x8B will appear in such cases and needs
to get recognized by the ap bus and zcrypt device driver zoo.
Signed-off-by: Harald Freudenberger <freude@linux.ibm.com>
Signed-off-by: Vasily Gorbik <gor@linux.ibm.com>
Signed-off-by: Paul Gortmaker <paul.gortmaker@windriver.com>
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commit 366ba7c71ef77c08d06b18ad61b26e2df7352338 upstream.
Reading the TOC only works if the device can play audio, otherwise
these commands fail (and possibly bring the device to an unhealthy
state.)
Similarly, cdrom_mmc3_profile() should only be called if the device
supports generic packet commands.
To: Jens Axboe <axboe@kernel.dk>
Cc: linux-kernel@vger.kernel.org
Cc: linux-scsi@vger.kernel.org
Signed-off-by: Diego Elio Pettenò <flameeyes@flameeyes.com>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
Signed-off-by: Paul Gortmaker <paul.gortmaker@windriver.com>
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commit 2aacace6dbbb6b6ce4e177e6c7ea901f389c0472 upstream.
In attach_node_and_children memory is allocated for full_name via
kasprintf. If the condition of the 1st if is not met the function
returns early without freeing the memory. Add a kfree() to fix that.
This has been detected with kmemleak:
Link: https://bugzilla.kernel.org/show_bug.cgi?id=205327
It looks like the leak was introduced by this commit:
Fixes: 5babefb7f7ab ("of: unittest: allow base devicetree to have symbol metadata")
Signed-off-by: Erhard Furtner <erhard_f@mailbox.org>
Reviewed-by: Michael Ellerman <mpe@ellerman.id.au>
Reviewed-by: Tyrel Datwyler <tyreld@linux.ibm.com>
Signed-off-by: Rob Herring <robh@kernel.org>
Signed-off-by: Paul Gortmaker <paul.gortmaker@windriver.com>
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commit e272f7ec070d212b9301d5a465bc8952f8dcf908 upstream.
When commit 75e99bf5ed8f ("gpio: lynxpoint: set default handler to be
handle_bad_irq()") switched default handler to be handle_bad_irq() the
lp_irq_type() function remained untouched. It means that even request_irq()
can't change the handler and we are not able to handle IRQs properly anymore.
Fix it by setting correct handlers in the lp_irq_type() callback.
Fixes: 75e99bf5ed8f ("gpio: lynxpoint: set default handler to be handle_bad_irq()")
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Link: https://lore.kernel.org/r/20191118180251.31439-1-andriy.shevchenko@linux.intel.com
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Paul Gortmaker <paul.gortmaker@windriver.com>
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commit 4e50573f39229d5e9c985fa3b4923a8b29619ade upstream.
The per-SoC devtype structures can contain their own callbacks that
overwrite mpc8xxx_gpio_devtype_default.
The clear intention is that mpc8xxx_irq_set_type is used in case the SoC
does not specify a more specific callback. But what happens is that if
the SoC doesn't specify one, its .irq_set_type is de-facto NULL, and
this overwrites mpc8xxx_irq_set_type to a no-op. This means that the
following SoCs are affected:
- fsl,mpc8572-gpio
- fsl,ls1028a-gpio
- fsl,ls1088a-gpio
On these boards, the irq_set_type does exactly nothing, and the GPIO
controller keeps its GPICR register in the hardware-default state. On
the LS1028A, that is ACTIVE_BOTH, which means 2 interrupts are raised
even if the IRQ client requests LEVEL_HIGH. Another implication is that
the IRQs are not checked (e.g. level-triggered interrupts are not
rejected, although they are not supported).
Fixes: 82e39b0d8566 ("gpio: mpc8xxx: handle differences between incarnations at a single place")
Signed-off-by: Vladimir Oltean <vladimir.oltean@nxp.com>
Link: https://lore.kernel.org/r/20191115125551.31061-1-olteanv@gmail.com
Tested-by: Michael Walle <michael@walle.cc>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Paul Gortmaker <paul.gortmaker@windriver.com>
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intel_pmc_core driver
commit 5406327d43edd9a171bd260f49c752d148727eaf upstream.
Add Comet Lake to the list of the platforms that intel_pmc_core driver
supports for pmc_core device.
Just like Ice Lake, Comet Lake can also reuse all the Cannon Lake PCH
IPs. No additional effort is needed to enable but to simply reuse them.
Cc: Mario Limonciello <mario.limonciello@dell.com>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Srinivas Pandruvada <srinivas.pandruvada@intel.com>
Cc: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Cc: Kan Liang <kan.liang@intel.com>
Cc: David E. Box <david.e.box@intel.com>
Cc: Rajneesh Bhardwaj <rajneesh.bhardwaj@intel.com>
Cc: Tony Luck <tony.luck@intel.com>
Signed-off-by: Gayatri Kammela <gayatri.kammela@intel.com>
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Signed-off-by: Paul Gortmaker <paul.gortmaker@windriver.com>
|
|
commit 43e82d8aa92503d264309fb648b251b2d85caf1a upstream.
Intel's SoCs follow a naming convention which spells out the SoC name as
two words instead of one word (E.g: Cannon Lake vs Cannonlake). Thus fix
the naming inconsistency across the intel_pmc_core driver, so future
SoCs can follow the naming consistency as below.
Cometlake -> Comet Lake
Tigerlake -> Tiger Lake
Elkhartlake -> Elkhart Lake
Cc: Mario Limonciello <mario.limonciello@dell.com>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Srinivas Pandruvada <srinivas.pandruvada@intel.com>
Cc: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Cc: Kan Liang <kan.liang@intel.com>
Cc: David E. Box <david.e.box@intel.com>
Cc: Rajneesh Bhardwaj <rajneesh.bhardwaj@intel.com>
Cc: Tony Luck <tony.luck@intel.com>
Suggested-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Signed-off-by: Gayatri Kammela <gayatri.kammela@intel.com>
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Signed-off-by: Paul Gortmaker <paul.gortmaker@windriver.com>
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commit 71c5e55e7c077fa17c42fbda91a8d14322825c44 upstream.
Reduce context close time by skipping the VA block free list update in
order to avoid hard reset with open contexts.
Reset with open contexts can potentially lead to a kernel crash as the
generic pool of the MMU hops is destroyed while it is not empty because
some unmap operations are not done.
The commit affect mainly when running on simulator.
Signed-off-by: Omer Shpigelman <oshpigelman@habana.ai>
Reviewed-by: Oded Gabbay <oded.gabbay@gmail.com>
Signed-off-by: Oded Gabbay <oded.gabbay@gmail.com>
Signed-off-by: Paul Gortmaker <paul.gortmaker@windriver.com>
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commit 238191d65d7217982d69e21c1d623616da34b281 upstream.
If a faulty initiator fails to bind the socket to the iSCSI connection
before emitting a command, for instance, a subsequent send_pdu, it will
crash the kernel due to a null pointer dereference in sock_sendmsg(), as
shown in the log below. This patch makes sure the bind succeeded before
trying to use the socket.
BUG: kernel NULL pointer dereference, address: 0000000000000018
#PF: supervisor read access in kernel mode
#PF: error_code(0x0000) - not-present page
PGD 0 P4D 0
Oops: 0000 [#1] SMP PTI
CPU: 3 PID: 7 Comm: kworker/u8:0 Not tainted 5.4.0-rc2.iscsi+ #13
Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.12.0-1 04/01/2014
[ 24.158246] Workqueue: iscsi_q_0 iscsi_xmitworker
[ 24.158883] RIP: 0010:apparmor_socket_sendmsg+0x5/0x20
[...]
[ 24.161739] RSP: 0018:ffffab6440043ca0 EFLAGS: 00010282
[ 24.162400] RAX: ffffffff891c1c00 RBX: ffffffff89d53968 RCX: 0000000000000001
[ 24.163253] RDX: 0000000000000030 RSI: ffffab6440043d00 RDI: 0000000000000000
[ 24.164104] RBP: 0000000000000030 R08: 0000000000000030 R09: 0000000000000030
[ 24.165166] R10: ffffffff893e66a0 R11: 0000000000000018 R12: ffffab6440043d00
[ 24.166038] R13: 0000000000000000 R14: 0000000000000000 R15: ffff9d5575a62e90
[ 24.166919] FS: 0000000000000000(0000) GS:ffff9d557db80000(0000) knlGS:0000000000000000
[ 24.167890] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 24.168587] CR2: 0000000000000018 CR3: 000000007a838000 CR4: 00000000000006e0
[ 24.169451] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[ 24.170320] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[ 24.171214] Call Trace:
[ 24.171537] security_socket_sendmsg+0x3a/0x50
[ 24.172079] sock_sendmsg+0x16/0x60
[ 24.172506] iscsi_sw_tcp_xmit_segment+0x77/0x120
[ 24.173076] iscsi_sw_tcp_pdu_xmit+0x58/0x170
[ 24.173604] ? iscsi_dbg_trace+0x63/0x80
[ 24.174087] iscsi_tcp_task_xmit+0x101/0x280
[ 24.174666] iscsi_xmit_task+0x83/0x110
[ 24.175206] iscsi_xmitworker+0x57/0x380
[ 24.175757] ? __schedule+0x2a2/0x700
[ 24.176273] process_one_work+0x1b5/0x360
[ 24.176837] worker_thread+0x50/0x3c0
[ 24.177353] kthread+0xf9/0x130
[ 24.177799] ? process_one_work+0x360/0x360
[ 24.178401] ? kthread_park+0x90/0x90
[ 24.178915] ret_from_fork+0x35/0x40
[ 24.179421] Modules linked in:
[ 24.179856] CR2: 0000000000000018
[ 24.180327] ---[ end trace b4b7674b6df5f480 ]---
Signed-off-by: Anatol Pomazau <anatol@google.com>
Co-developed-by: Frank Mayhar <fmayhar@google.com>
Signed-off-by: Frank Mayhar <fmayhar@google.com>
Co-developed-by: Bharath Ravi <rbharath@google.com>
Signed-off-by: Bharath Ravi <rbharath@google.com>
Co-developed-by: Khazhimsel Kumykov <khazhy@google.com>
Signed-off-by: Khazhimsel Kumykov <khazhy@google.com>
Co-developed-by: Gabriel Krisman Bertazi <krisman@collabora.com>
Signed-off-by: Gabriel Krisman Bertazi <krisman@collabora.com>
Reviewed-by: Lee Duncan <lduncan@suse.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Signed-off-by: Paul Gortmaker <paul.gortmaker@windriver.com>
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commit 71d848b8d97ec0f8e993d63cf9de6ac8b3f7c43d upstream.
Fix up possible unclocked register access to auto hibern8 register in
resume path and through sysfs entry. Meanwhile, enable auto hibern8 only
after device is fully initialized in probe path.
Link: https://lore.kernel.org/r/1573798172-20534-4-git-send-email-cang@codeaurora.org
Reviewed-by: Stanley Chu <stanley.chu@mediatek.com>
Signed-off-by: Can Guo <cang@codeaurora.org>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Signed-off-by: Paul Gortmaker <paul.gortmaker@windriver.com>
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commit 80647a89eaf3f2549741648f3230cd6ff68c23b4 upstream.
The SCSI specs require releasing SPC-2 reservations when a session is
closed. Make sure that the target core does this.
Running the libiscsi tests triggers the KASAN complaint shown below. This
patch fixes that use-after-free.
BUG: KASAN: use-after-free in target_check_reservation+0x171/0x980 [target_core_mod]
Read of size 8 at addr ffff88802ecd1878 by task iscsi_trx/17200
CPU: 0 PID: 17200 Comm: iscsi_trx Not tainted 5.4.0-rc1-dbg+ #1
Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
Call Trace:
dump_stack+0x8a/0xd6
print_address_description.constprop.0+0x40/0x60
__kasan_report.cold+0x1b/0x34
kasan_report+0x16/0x20
__asan_load8+0x58/0x90
target_check_reservation+0x171/0x980 [target_core_mod]
__target_execute_cmd+0xb1/0xf0 [target_core_mod]
target_execute_cmd+0x22d/0x4d0 [target_core_mod]
transport_generic_new_cmd+0x31f/0x5b0 [target_core_mod]
transport_handle_cdb_direct+0x6f/0x90 [target_core_mod]
iscsit_execute_cmd+0x381/0x3f0 [iscsi_target_mod]
iscsit_sequence_cmd+0x13b/0x1f0 [iscsi_target_mod]
iscsit_process_scsi_cmd+0x4c/0x130 [iscsi_target_mod]
iscsit_get_rx_pdu+0x8e8/0x15f0 [iscsi_target_mod]
iscsi_target_rx_thread+0x105/0x1b0 [iscsi_target_mod]
kthread+0x1bc/0x210
ret_from_fork+0x24/0x30
Allocated by task 1079:
save_stack+0x23/0x90
__kasan_kmalloc.constprop.0+0xcf/0xe0
kasan_slab_alloc+0x12/0x20
kmem_cache_alloc+0xfe/0x3a0
transport_alloc_session+0x29/0x80 [target_core_mod]
iscsi_target_login_thread+0xceb/0x1920 [iscsi_target_mod]
kthread+0x1bc/0x210
ret_from_fork+0x24/0x30
Freed by task 17193:
save_stack+0x23/0x90
__kasan_slab_free+0x13a/0x190
kasan_slab_free+0x12/0x20
kmem_cache_free+0xc8/0x3e0
transport_free_session+0x179/0x2f0 [target_core_mod]
transport_deregister_session+0x121/0x170 [target_core_mod]
iscsit_close_session+0x12c/0x350 [iscsi_target_mod]
iscsit_logout_post_handler+0x136/0x380 [iscsi_target_mod]
iscsit_response_queue+0x8fa/0xc00 [iscsi_target_mod]
iscsi_target_tx_thread+0x28e/0x390 [iscsi_target_mod]
kthread+0x1bc/0x210
ret_from_fork+0x24/0x30
The buggy address belongs to the object at ffff88802ecd1860
which belongs to the cache se_sess_cache of size 352
The buggy address is located 24 bytes inside of
352-byte region [ffff88802ecd1860, ffff88802ecd19c0)
The buggy address belongs to the page:
page:ffffea0000bb3400 refcount:1 mapcount:0 mapping:ffff8880bef2ed00 index:0x0 compound_mapcount: 0
flags: 0x1000000000010200(slab|head)
raw: 1000000000010200 dead000000000100 dead000000000122 ffff8880bef2ed00
raw: 0000000000000000 0000000080270027 00000001ffffffff 0000000000000000
page dumped because: kasan: bad access detected
Memory state around the buggy address:
ffff88802ecd1700: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
ffff88802ecd1780: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
>ffff88802ecd1800: fb fb fb fb fc fc fc fc fc fc fc fc fb fb fb fb
^
ffff88802ecd1880: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
ffff88802ecd1900: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
Cc: Mike Christie <mchristi@redhat.com>
Link: https://lore.kernel.org/r/20191113220508.198257-2-bvanassche@acm.org
Reviewed-by: Roman Bolshakov <r.bolshakov@yadro.com>
Signed-off-by: Bart Van Assche <bvanassche@acm.org>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Signed-off-by: Paul Gortmaker <paul.gortmaker@windriver.com>
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commit 0b7a223552d455bcfba6fb9cfc5eef2b5fce1491 upstream.
Add a module parameter to inhibit disconnect/reselect for individual
targets. This gains compatibility with Aztec PowerMonster SCSI/SATA
adapters with buggy firmware. (No fix is available from the vendor.)
Apparently these adapters pass-through the product/vendor of the attached
SATA device. Since they can't be identified from the response to an INQUIRY
command, a device blacklist flag won't work.
Cc: Michael Schmitz <schmitzmic@gmail.com>
Link: https://lore.kernel.org/r/993b17545990f31f9fa5a98202b51102a68e7594.1573875417.git.fthain@telegraphics.com.au
Reviewed-and-tested-by: Michael Schmitz <schmitzmic@gmail.com>
Signed-off-by: Finn Thain <fthain@telegraphics.com.au>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Signed-off-by: Paul Gortmaker <paul.gortmaker@windriver.com>
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commit aa5334c4f3014940f11bf876e919c956abef4089 upstream.
Passing the parameter "num_tgts=-1" will start an infinite loop that
exhausts the system memory
Link: https://lore.kernel.org/r/20191115163727.24626-1-mlombard@redhat.com
Signed-off-by: Maurizio Lombardi <mlombard@redhat.com>
Acked-by: Douglas Gilbert <dgilbert@interlog.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Signed-off-by: Paul Gortmaker <paul.gortmaker@windriver.com>
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commit 6d303e4b19d694cdbebf76bcdb51ada664ee953d upstream.
During clock gating (ufshcd_gate_work()), we first put the link hibern8 by
calling ufshcd_uic_hibern8_enter() and if ufshcd_uic_hibern8_enter()
returns success (0) then we gate all the clocks. Now let’s zoom in to what
ufshcd_uic_hibern8_enter() does internally: It calls
__ufshcd_uic_hibern8_enter() and if failure is encountered, link recovery
shall put the link back to the highest HS gear and returns success (0) to
ufshcd_uic_hibern8_enter() which is the issue as link is still in active
state due to recovery! Now ufshcd_uic_hibern8_enter() returns success to
ufshcd_gate_work() and hence it goes ahead with gating the UFS clock while
link is still in active state hence I believe controller would raise UIC
error interrupts. But when we service the interrupt, clocks might have
already been disabled!
This change fixes for this by returning failure from
__ufshcd_uic_hibern8_enter() if recovery succeeds as link is still not in
hibern8, upon receiving the error ufshcd_hibern8_enter() would initiate
retry to put the link state back into hibern8.
Link: https://lore.kernel.org/r/1573798172-20534-8-git-send-email-cang@codeaurora.org
Reviewed-by: Avri Altman <avri.altman@wdc.com>
Reviewed-by: Bean Huo <beanhuo@micron.com>
Signed-off-by: Subhash Jadavani <subhashj@codeaurora.org>
Signed-off-by: Can Guo <cang@codeaurora.org>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Signed-off-by: Paul Gortmaker <paul.gortmaker@windriver.com>
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commit ce21c63ee995b7a8b7b81245f2cee521f8c3c220 upstream.
Driver was missing complete() call in mpi_sata_completion which result in
SATA abort error handling timing out. That causes the device to be left in
the in_recovery state so subsequent commands sent to the device fail and
the OS removes access to it.
Link: https://lore.kernel.org/r/20191114100910.6153-2-deepak.ukey@microchip.com
Acked-by: Jack Wang <jinpu.wang@cloud.ionos.com>
Signed-off-by: peter chang <dpf@google.com>
Signed-off-by: Deepak Ukey <deepak.ukey@microchip.com>
Signed-off-by: Viswas G <Viswas.G@microchip.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Signed-off-by: Paul Gortmaker <paul.gortmaker@windriver.com>
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commit 72139dfa2464e43957d330266994740bb7be2535 upstream.
The struct cdev is embedded in the struct watchdog_core_data. In the
current code, we manage the watchdog_core_data with a kref, but the
cdev is manged by a kobject. There is no any relationship between
this kref and kobject. So it is possible that the watchdog_core_data is
freed before the cdev is entirely released. We can easily get the
following call trace with CONFIG_DEBUG_KOBJECT_RELEASE and
CONFIG_DEBUG_OBJECTS_TIMERS enabled.
ODEBUG: free active (active state 0) object type: timer_list hint: delayed_work_timer_fn+0x0/0x38
WARNING: CPU: 23 PID: 1028 at lib/debugobjects.c:481 debug_print_object+0xb0/0xf0
Modules linked in: softdog(-) deflate ctr twofish_generic twofish_common camellia_generic serpent_generic blowfish_generic blowfish_common cast5_generic cast_common cmac xcbc af_key sch_fq_codel openvswitch nsh nf_conncount nf_nat nf_conntrack nf_defrag_ipv6 nf_defrag_ipv4
CPU: 23 PID: 1028 Comm: modprobe Not tainted 5.3.0-next-20190924-yoctodev-standard+ #180
Hardware name: Marvell OcteonTX CN96XX board (DT)
pstate: 00400009 (nzcv daif +PAN -UAO)
pc : debug_print_object+0xb0/0xf0
lr : debug_print_object+0xb0/0xf0
sp : ffff80001cbcfc70
x29: ffff80001cbcfc70 x28: ffff800010ea2128
x27: ffff800010bad000 x26: 0000000000000000
x25: ffff80001103c640 x24: ffff80001107b268
x23: ffff800010bad9e8 x22: ffff800010ea2128
x21: ffff000bc2c62af8 x20: ffff80001103c600
x19: ffff800010e867d8 x18: 0000000000000060
x17: 0000000000000000 x16: 0000000000000000
x15: ffff000bd7240470 x14: 6e6968207473696c
x13: 5f72656d6974203a x12: 6570797420746365
x11: 6a626f2029302065 x10: 7461747320657669
x9 : 7463612820657669 x8 : 3378302f3078302b
x7 : 0000000000001d7a x6 : ffff800010fd5889
x5 : 0000000000000000 x4 : 0000000000000000
x3 : 0000000000000000 x2 : ffff000bff948548
x1 : 276a1c9e1edc2300 x0 : 0000000000000000
Call trace:
debug_print_object+0xb0/0xf0
debug_check_no_obj_freed+0x1e8/0x210
kfree+0x1b8/0x368
watchdog_cdev_unregister+0x88/0xc8
watchdog_dev_unregister+0x38/0x48
watchdog_unregister_device+0xa8/0x100
softdog_exit+0x18/0xfec4 [softdog]
__arm64_sys_delete_module+0x174/0x200
el0_svc_handler+0xd0/0x1c8
el0_svc+0x8/0xc
This is a common issue when using cdev embedded in a struct.
Fortunately, we already have a mechanism to solve this kind of issue.
Please see commit 233ed09d7fda ("chardev: add helper function to
register char devs with a struct device") for more detail.
In this patch, we choose to embed the struct device into the
watchdog_core_data, and use the API provided by the commit 233ed09d7fda
to make sure that the release of watchdog_core_data and cdev are
in sequence.
Signed-off-by: Kevin Hao <haokexin@gmail.com>
Reviewed-by: Guenter Roeck <linux@roeck-us.net>
Link: https://lore.kernel.org/r/20191008112934.29669-1-haokexin@gmail.com
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Wim Van Sebroeck <wim@linux-watchdog.org>
Signed-off-by: Paul Gortmaker <paul.gortmaker@windriver.com>
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transport device
commit 8725aa4fa7ded30211ebd28bb1c9bae806eb3841 upstream.
In the event that the RMI device is unreachable, the calls to rmi_set_mode() or
rmi_set_page() will fail before registering the RMI transport device. When the
device is removed, rmi_remove() will call rmi_unregister_transport_device()
which will attempt to access the rmi_dev pointer which was not set.
This patch adds a check of the RMI_STARTED bit before calling
rmi_unregister_transport_device(). The RMI_STARTED bit is only set
after rmi_register_transport_device() completes successfully.
The kernel oops was reported in this message:
https://www.spinics.net/lists/linux-input/msg58433.html
[jkosina@suse.cz: reworded changelog as agreed with Andrew]
Signed-off-by: Andrew Duggan <aduggan@synaptics.com>
Reported-by: Federico Cerutti <federico@ceres-c.it>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
Signed-off-by: Paul Gortmaker <paul.gortmaker@windriver.com>
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commit 2dbc6f113acd74c66b04bf49fb027efd830b1c5a upstream.
Per Microsoft spec, usage 0xC5 (page 0xFF) returns a blob containing
data used to verify the touchpad as a Windows Precision Touchpad.
0x85, REPORTID_PTPHQA, // REPORT_ID (PTPHQA)
0x09, 0xC5, // USAGE (Vendor Usage 0xC5)
0x15, 0x00, // LOGICAL_MINIMUM (0)
0x26, 0xff, 0x00, // LOGICAL_MAXIMUM (0xff)
0x75, 0x08, // REPORT_SIZE (8)
0x96, 0x00, 0x01, // REPORT_COUNT (0x100 (256))
0xb1, 0x02, // FEATURE (Data,Var,Abs)
However, some devices, namely Microsoft's Surface line of products
instead implement a "segmented device certification report" (usage 0xC6)
which returns the same report, but in smaller chunks.
0x06, 0x00, 0xff, // USAGE_PAGE (Vendor Defined)
0x85, REPORTID_PTPHQA, // REPORT_ID (PTPHQA)
0x09, 0xC6, // USAGE (Vendor usage for segment #)
0x25, 0x08, // LOGICAL_MAXIMUM (8)
0x75, 0x08, // REPORT_SIZE (8)
0x95, 0x01, // REPORT_COUNT (1)
0xb1, 0x02, // FEATURE (Data,Var,Abs)
0x09, 0xC7, // USAGE (Vendor Usage)
0x26, 0xff, 0x00, // LOGICAL_MAXIMUM (0xff)
0x95, 0x20, // REPORT_COUNT (32)
0xb1, 0x02, // FEATURE (Data,Var,Abs)
By expanding Win8 touchpad detection to also look for the segmented
report, all Surface touchpads are now properly recognized by
hid-multitouch.
Signed-off-by: Blaž Hrastnik <blaz@mxxn.io>
Signed-off-by: Benjamin Tissoires <benjamin.tissoires@redhat.com>
Signed-off-by: Paul Gortmaker <paul.gortmaker@windriver.com>
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commit 4e24e37d5313edca8b4ab86f240c046c731e28d6 upstream.
drivers/nvdimm/btt.c: In function 'btt_read_pg':
drivers/nvdimm/btt.c:1264:8: warning: variable 'rc' set but not used
[-Wunused-but-set-variable]
int rc;
^~
Add a ratelimited message in case a storm of errors is encountered.
Fixes: d9b83c756953 ("libnvdimm, btt: rework error clearing")
Signed-off-by: Qian Cai <cai@lca.pw>
Reviewed-by: Vishal Verma <vishal.l.verma@intel.com>
Link: https://lore.kernel.org/r/1572530719-32161-1-git-send-email-cai@lca.pw
Signed-off-by: Dan Williams <dan.j.williams@intel.com>
Signed-off-by: Paul Gortmaker <paul.gortmaker@windriver.com>
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commit 0c8432236dea20a95f68fa17989ea3f8af0186a5 upstream.
On some ThinkPad L390 some raydium 3118 touchscreen devices
doesn't response any data after reset, but some does.
Add this ID to no irq quirk,
then don't wait for any response alike on these touchscreens.
All kinds of raydium 3118 devices work fine.
BugLink: https://bugs.launchpad.net/bugs/1849721
Signed-off-by: Aaron Ma <aaron.ma@canonical.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
Signed-off-by: Paul Gortmaker <paul.gortmaker@windriver.com>
|
Bruce Ashfield
Yangbo Lu
Stefano Garzarella
Netanel Belgazal
Jonathan Lemon
Taehee Yoo
Haiyang Zhang
Russell King
Hangbin Liu
Amit Cohen
Vasundhara Volam
Michael Chan
Vladis Dronov
Martin Blumenstingl
Madalin Bucur
Vladyslav Tarasiuk
Florian Fainelli
Rahul Lakkireddy
Daniel Vetter
Eric Dumazet
Daniel Baluta
Harald Freudenberger
Diego Elio Pettenò
Erhard Furtner
Andy Shevchenko
Vladimir Oltean
Gayatri Kammela
Omer Shpigelman
Anatol Pomazau
Can Guo
Bart Van Assche
Finn Thain
Maurizio Lombardi
Subhash Jadavani
peter chang
Kevin Hao
Andrew Duggan
Blaž Hrastnik
Qian Cai
Aaron Ma