There is no a_r3, a_r4 in the testing topology.
It should be b_r1, b_r2. Also b_r1 mtu is 1400 and b_r2 mtu is 1500.
Fixes: e44e428f59 ("selftests: pmtu: add basic IPv4 and IPv6 PMTU tests")
Signed-off-by: Hangbin Liu <liuhangbin@gmail.com>
Acked-by: Stefano Brivio <sbrivio@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
In existing code, the receive indirection table, rx_table, is in
struct rndis_device, which will be reset when changing MTU, ringparam,
etc. User configured receive indirection table values will be lost.
To fix this, move rx_table to struct net_device_context, and check
netif_is_rxfh_configured(), so rx_table will be set to default only
if no user configured value.
Fixes: ff4a441990 ("netvsc: allow get/set of RSS indirection table")
Signed-off-by: Haiyang Zhang <haiyangz@microsoft.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
PHY IDs are 32-bit unsigned quantities. Ensure that they are always
treated as such, and not passed around as "int"s.
Fixes: 13d0ab6750 ("net: phy: check return code when requesting PHY driver module")
Signed-off-by: Russell King <rmk+kernel@armlinux.org.uk>
Reviewed-by: Florian Fainelli <f.fainelli@gmail.com>
Reviewed-by: Andrew Lunn <andrew@lunn.ch>
Signed-off-by: David S. Miller <davem@davemloft.net>
When a PHY is probed, if the top bit is set, we end up requesting a
module with the string "mdio:-10101110000000100101000101010001" -
the top bit is printed to a signed -1 value. This leads to the module
not being loaded.
Fix the module format string and the macro generating the values for
it to ensure that we only print unsigned types and the top bit is
always 0/1. We correctly end up with
"mdio:10101110000000100101000101010001".
Fixes: 8626d3b432 ("phylib: Support phy module autoloading")
Reviewed-by: Andrew Lunn <andrew@lunn.ch>
Signed-off-by: Russell King <rmk+kernel@armlinux.org.uk>
Reviewed-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
commit 18c602dee4 ("qede: Use NETIF_F_GRO_HW.") introduced
a regression in driver that when xdp program is installed on
qede device, device's aggregation feature (hardware GRO) is not
getting disabled, which is unexpected with xdp.
Fixes: 18c602dee4 ("qede: Use NETIF_F_GRO_HW.")
Signed-off-by: Manish Chopra <manishc@marvell.com>
Signed-off-by: Ariel Elior <aelior@marvell.com>
Reviewed-by: Michael Chan <michael.chan@broadcom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Arthur Kiyanovski says:
====================
ena: fixes of interrupt moderation bugs
Differences from V1:
1. Updated default tx interrupt moderation to 64us
2. Added "Fixes:" tags.
3. Removed cosmetic changes that are not relevant for these bug fixes
This patchset includes a couple of fixes of bugs in the implemenation of
interrupt moderation.
====================
Signed-off-by: David S. Miller <davem@davemloft.net>
Issue 1:
--------
Reproduction steps:
1. sudo ethtool -C eth0 rx-usecs 128
2. sudo ethtool -C eth0 adaptive-rx on
3. sudo ethtool -C eth0 adaptive-rx off
4. ethtool -c eth0
expected output: rx-usecs 128
actual output: rx-usecs 0
Reason for issue:
In stage 3, ethtool userspace calls first the ena_get_coalesce() handler
to get the current value of all properties, and then the ena_set_coalesce()
handler. When ena_get_coalesce() is called the adaptive interrupt
moderation is still on. There is an if in the code that returns the
rx_coalesce_usecs only if the adaptive interrupt moderation is off.
And since it is still on, rx_coalesce_usecs is not set, meaning it
stays 0.
Solution to issue:
Remove this if static interrupt moderation intervals have nothing to do
with dynamic ones.
Issue 2:
--------
Reproduction steps:
1. sudo ethtool -C eth0 adaptive-rx on
2. sudo ethtool -C eth0 rx-usecs 128
3. ethtool -c eth0
expected output: rx-usecs 128
actual output: rx-usecs 0
Reason for issue:
In stage 2, when ena_set_coalesce() is called, the handler tests if
rx adaptive interrupt moderation is on, and if it is, it returns before
getting to the part in the function that sets the rx non-adaptive
interrupt moderation interval.
Solution to issue:
Remove the return from the function when rx adaptive interrupt moderation
is on.
Also cleaned up the fixed code in ena_set_coalesce by grouping together
adaptive interrupt moderation toggling, and using && instead of nested
ifs.
Fixes: b3db86dc4b ("net: ena: reimplement set/get_coalesce()")
Fixes: 0eda847953 ("net: ena: fix retrieval of nonadaptive interrupt moderation intervals")
Fixes: 1738cd3ed3 ("net: ena: Add a driver for Amazon Elastic Network Adapters (ENA)")
Signed-off-by: Arthur Kiyanovski <akiyano@amazon.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Current default non-adaptive tx interrupt moderation interval is 196 us.
This value is too high and might cause the tx queue to fill up.
In this commit we set the default non-adaptive tx interrupt moderation
interval to 64 us in order to:
1. Reduce the probability of the queue filling-up (when compared to the
current default value of 196 us).
2. Reduce unnecessary tx interrupt overhead (which happens if we set the
default tx interval to 0).
We determined experimentally that 64 us is an optimal value that
reduces interrupt rate by more than 20% without affecting performance.
Fixes: 1738cd3ed3 ("net: ena: Add a driver for Amazon Elastic Network Adapters (ENA)")
Signed-off-by: Arthur Kiyanovski <akiyano@amazon.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
In the reboot_event handler, unregister the ib devices and enable
the IB layer to release the devices before the reboot.
Fixes: a33a803cfe ("net/smc: guarantee removal of link groups in reboot")
Signed-off-by: Karsten Graul <kgraul@linux.ibm.com>
Reviewed-by: Ursula Braun <ubraun@linux.ibm.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
The current implementation of "stmmac_dt_phy" function initializes
the MDIO platform bus data, even in the absence of PHY. This fix
will skip MDIO initialization if there is no PHY present.
Fixes: 7437127 ("net: stmmac: Convert to phylink and remove phylib logic")
Acked-by: Jayati Sahu <jayati.sahu@samsung.com>
Signed-off-by: Sriram Dash <sriram.dash@samsung.com>
Signed-off-by: Padmanabhan Rajanbabu <p.rajanbabu@samsung.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
When a frame with NULL DSAP is received, llc_station_rcv is called.
In turn, llc_stat_ev_rx_null_dsap_xid_c is called to check if it is a NULL
XID frame. The return statement of llc_stat_ev_rx_null_dsap_xid_c returns 1
when the incoming frame is not a NULL XID frame and 0 otherwise. Hence, a
NULL XID response is returned unexpectedly, e.g. when the incoming frame is
a NULL TEST command.
To fix the error, simply remove the conditional operator.
A similar error in llc_stat_ev_rx_null_dsap_test_c is also fixed.
Signed-off-by: Chan Shu Tak, Alex <alexchan@task.com.hk>
Signed-off-by: David S. Miller <davem@davemloft.net>
When doing stress test, we get the following trace:
kernel BUG at lib/dynamic_queue_limits.c:26!
Internal error: Oops - BUG: 0 [#1] SMP ARM
Modules linked in: hip04_eth
CPU: 0 PID: 2003 Comm: tDblStackPcap0 Tainted: G O L 4.4.197 #1
Hardware name: Hisilicon A15
task: c3637668 task.stack: de3bc000
PC is at dql_completed+0x18/0x154
LR is at hip04_tx_reclaim+0x110/0x174 [hip04_eth]
pc : [<c041abfc>] lr : [<bf0003a8>] psr: 800f0313
sp : de3bdc2c ip : 00000000 fp : c020fb10
r10: 00000000 r9 : c39b4224 r8 : 00000001
r7 : 00000046 r6 : c39b4000 r5 : 0078f392 r4 : 0078f392
r3 : 00000047 r2 : 00000000 r1 : 00000046 r0 : df5d5c80
Flags: Nzcv IRQs on FIQs on Mode SVC_32 ISA ARM Segment user
Control: 32c5387d Table: 1e189b80 DAC: 55555555
Process tDblStackPcap0 (pid: 2003, stack limit = 0xde3bc190)
Stack: (0xde3bdc2c to 0xde3be000)
[<c041abfc>] (dql_completed) from [<bf0003a8>] (hip04_tx_reclaim+0x110/0x174 [hip04_eth])
[<bf0003a8>] (hip04_tx_reclaim [hip04_eth]) from [<bf0012c0>] (hip04_rx_poll+0x20/0x388 [hip04_eth])
[<bf0012c0>] (hip04_rx_poll [hip04_eth]) from [<c04c8d9c>] (net_rx_action+0x120/0x374)
[<c04c8d9c>] (net_rx_action) from [<c021eaf4>] (__do_softirq+0x218/0x318)
[<c021eaf4>] (__do_softirq) from [<c021eea0>] (irq_exit+0x88/0xac)
[<c021eea0>] (irq_exit) from [<c0240130>] (msa_irq_exit+0x11c/0x1d4)
[<c0240130>] (msa_irq_exit) from [<c0267ba8>] (__handle_domain_irq+0x110/0x148)
[<c0267ba8>] (__handle_domain_irq) from [<c0201588>] (gic_handle_irq+0xd4/0x118)
[<c0201588>] (gic_handle_irq) from [<c0558360>] (__irq_svc+0x40/0x58)
Exception stack(0xde3bdde0 to 0xde3bde28)
dde0: 00000000 00008001 c3637668 00000000 00000000 a00f0213 dd3627a0 c0af6380
de00: c086d380 a00f0213 c0a22a50 de3bde6c 00000002 de3bde30 c0558138 c055813c
de20: 600f0213 ffffffff
[<c0558360>] (__irq_svc) from [<c055813c>] (_raw_spin_unlock_irqrestore+0x44/0x54)
Kernel panic - not syncing: Fatal exception in interrupt
Pre-modification code:
int hip04_mac_start_xmit(struct sk_buff *skb, struct net_device *ndev)
{
[...]
[1] priv->tx_head = TX_NEXT(tx_head);
[2] count++;
[3] netdev_sent_queue(ndev, skb->len);
[...]
}
An rx interrupt occurs if hip04_mac_start_xmit just executes to the line 2,
tx_head has been updated, but corresponding 'skb->len' has not been
added to dql_queue.
And then
hip04_mac_interrupt->__napi_schedule->hip04_rx_poll->hip04_tx_reclaim
In hip04_tx_reclaim, because tx_head has been updated,
bytes_compl will plus an additional "skb-> len"
which has not been added to dql_queue. And then
trigger the BUG_ON(bytes_compl > num_queued - dql->num_completed).
To solve the problem described above, we put
"netdev_sent_queue(ndev, skb->len);"
before
"priv->tx_head = TX_NEXT(tx_head);"
Fixes: a41ea46a9a ("net: hisilicon: new hip04 ethernet driver")
Signed-off-by: Jiangfeng Xiao <xiaojiangfeng@huawei.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Remove special taglen define KSZ8795_INGRESS_TAG_LEN
and use generic KSZ_INGRESS_TAG_LEN instead.
Signed-off-by: Michael Grzeschik <m.grzeschik@pengutronix.de>
Reviewed-by: Andrew Lunn <andrew@lunn.ch>
Signed-off-by: David S. Miller <davem@davemloft.net>
Julian Wiedmann says:
====================
s390/qeth: fixes 2019-12-18
please apply the following patch series to your net tree.
This brings two fixes for initialization / teardown issues, and one
ENOTSUPP cleanup.
====================
Signed-off-by: David S. Miller <davem@davemloft.net>
ENOTSUPP is not uapi, use EOPNOTSUPP instead.
Fixes: d66cb37e96 ("qeth: Add new priority queueing options")
Signed-off-by: Julian Wiedmann <jwi@linux.ibm.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
When managing the promiscuous mode during an RX modeset, qeth caches the
current HW state to avoid repeated programming of the same state on each
modeset.
But while tearing down a device, we forget to clear the cached state. So
when the device is later set online again, the initial RX modeset
doesn't program the promiscuous mode since we believe it is already
enabled.
Fix this by clearing the cached state in the tear-down path.
Note that for the SBP variant of promiscuous mode, this accidentally
works right now because we unconditionally restore the SBP role while
re-initializing.
Fixes: 4a71df5004 ("qeth: new qeth device driver")
Signed-off-by: Julian Wiedmann <jwi@linux.ibm.com>
Reviewed-by: Alexandra Winter <wintera@linux.ibm.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Along with z/VM NICs, there's additional device types that only support
a specific transport mode (eg. external-bridged IQD).
Identify the corresponding error code, and raise a fitting error message
so that the user knows to adjust their device configuration.
On top of that also fix the subsequent error path, so that the rejected
cmd doesn't need to wait for a timeout but gets cancelled straight away.
Fixes: 4a71df5004 ("qeth: new qeth device driver")
Signed-off-by: Julian Wiedmann <jwi@linux.ibm.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Under heavy loads where the kyber I/O scheduler hits the token limits for
its scheduling domains, kyber can become stuck. When active requests
complete, kyber may not be woken up leaving the I/O requests in kyber
stuck.
This stuck state is due to a race condition with kyber and the sbitmap
functions it uses to run a callback when enough requests have completed.
The running of a sbt_wait callback can race with the attempt to insert the
sbt_wait. Since sbitmap_del_wait_queue removes the sbt_wait from the list
first then sets the sbq field to NULL, kyber can see the item as not on a
list but the call to sbitmap_add_wait_queue will see sbq as non-NULL. This
results in the sbt_wait being inserted onto the wait list but ws_active
doesn't get incremented. So the sbitmap queue does not know there is a
waiter on a wait list.
Since sbitmap doesn't think there is a waiter, kyber may never be
informed that there are domain tokens available and the I/O never advances.
With the sbt_wait on a wait list, kyber believes it has an active waiter
so cannot insert a new waiter when reaching the domain's full state.
This race can be fixed by only adding the sbt_wait to the queue if the
sbq field is NULL. If sbq is not NULL, there is already an action active
which will trigger the re-running of kyber. Let it run and add the
sbt_wait to the wait list if still needing to wait.
Reviewed-by: Omar Sandoval <osandov@fb.com>
Signed-off-by: David Jeffery <djeffery@redhat.com>
Reported-by: John Pittman <jpittman@redhat.com>
Tested-by: John Pittman <jpittman@redhat.com>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
- Leftover put_cpu() in the perf/smmuv3 error path.
- Add Hisilicon TSV110 to spectre-v2 safe list
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Merge tag 'arm64-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux
Pull arm64 fixes from Catalin Marinas:
- Leftover put_cpu() in the perf/smmuv3 error path.
- Add Hisilicon TSV110 to spectre-v2 safe list
* tag 'arm64-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux:
arm64: cpu_errata: Add Hisilicon TSV110 to spectre-v2 safe list
perf/smmuv3: Remove the leftover put_cpu() in error path
exynos:
- component delete fix
i915:
- Fix to drop an unused and harmful display W/A
- Fix to define EHL power wells independent of ICL
- Fix for priority inversion on bonded requests
- Fix in mmio offset calculation of DSB instance
- Fix memory leak from get_task_pid when banning clients
- Fixes to avoid dereference of uninitialized ops in dma_fence tracing
and keep reference to execbuf object until submitted.
- vGPU state setting locking fix (Zhenyu)
- Fix vGPU display dmabuf as read-only (Zhenyu)
- Properly handle vGPU display dmabuf page pin when rendering (Tina)
- Fix one guest boot warning to handle guc reset state (Fred)
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Merge tag 'drm-fixes-2019-12-21' of git://anongit.freedesktop.org/drm/drm
Pull drm fixes from Dave Airlie:
"Probably the last one before Christmas, I'll see if there is much
demand over next few weeks for more fixes, I expect it'll be quiet
enough.
This has one exynos fix, and a bunch of i915 core and i915 GVT fixes.
Summary:
exynos:
- component delete fix
i915:
- Fix to drop an unused and harmful display W/A
- Fix to define EHL power wells independent of ICL
- Fix for priority inversion on bonded requests
- Fix in mmio offset calculation of DSB instance
- Fix memory leak from get_task_pid when banning clients
- Fixes to avoid dereference of uninitialized ops in dma_fence
tracing and keep reference to execbuf object until submitted.
- vGPU state setting locking fix (Zhenyu)
- Fix vGPU display dmabuf as read-only (Zhenyu)
- Properly handle vGPU display dmabuf page pin when rendering (Tina)
- Fix one guest boot warning to handle guc reset state (Fred)"
* tag 'drm-fixes-2019-12-21' of git://anongit.freedesktop.org/drm/drm:
drm/exynos: gsc: add missed component_del
drm/i915: Fix pid leak with banned clients
drm/i915/gem: Keep request alive while attaching fences
drm/i915: Fix WARN_ON condition for cursor plane ddb allocation
drm/i915/gvt: Fix guest boot warning
drm/i915/tgl: Drop Wa#1178
drm/i915/ehl: Define EHL powerwells independently of ICL
drm/i915: Set fence_work.ops before dma_fence_init
drm/i915: Copy across scheduler behaviour flags across submit fences
drm/i915/dsb: Fix in mmio offset calculation of DSB instance
drm/i915/gvt: Pin vgpu dma address before using
drm/i915/gvt: set guest display buffer as readonly
drm/i915/gvt: use vgpu lock for active state setting
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Merge tag 'io_uring-5.5-20191220' of git://git.kernel.dk/linux-block
Pull io_uring fixes from Jens Axboe:
"Here's a set of fixes that should go into 5.5-rc3 for io_uring.
This is bigger than I'd like it to be, mainly because we're fixing the
case where an application reuses sqe data right after issue. This
really must work, or it's confusing. With 5.5 we're flagging us as
submit stable for the actual data, this must also be the case for
SQEs.
Honestly, I'd really like to add another series on top of this, since
it cleans it up considerable and prevents any SQE reuse by design. I
posted that here:
https://lore.kernel.org/io-uring/20191220174742.7449-1-axboe@kernel.dk/T/#u
and may still send it your way early next week once it's been looked
at and had some more soak time (does pass all regression tests). With
that series, we've unified the prep+issue handling, and only the prep
phase even has access to the SQE.
Anyway, outside of that, fixes in here for a few other issues that
have been hit in testing or production"
* tag 'io_uring-5.5-20191220' of git://git.kernel.dk/linux-block:
io_uring: io_wq_submit_work() should not touch req->rw
io_uring: don't wait when under-submitting
io_uring: warn about unhandled opcode
io_uring: read opcode and user_data from SQE exactly once
io_uring: make IORING_OP_TIMEOUT_REMOVE deferrable
io_uring: make IORING_OP_CANCEL_ASYNC deferrable
io_uring: make IORING_POLL_ADD and IORING_POLL_REMOVE deferrable
io_uring: make HARDLINK imply LINK
io_uring: any deferred command must have stable sqe data
io_uring: remove 'sqe' parameter to the OP helpers that take it
io_uring: fix pre-prepped issue with force_nonblock == true
io-wq: re-add io_wq_current_is_worker()
io_uring: fix sporadic -EFAULT from IORING_OP_RECVMSG
io_uring: fix stale comment and a few typos
- Fix to drop an unused and harmful display W/A
- Fix to define EHL power wells independent of ICL
- Fix for priority inversion on bonded requests
- Fix in mmio offset calculation of DSB instance
- Fix memory leak from get_task_pid when banning clients
- Fixes to avoid dereference of uninitialized ops in dma_fence tracing
and keep reference to execbuf object until submitted.
- Includes gvt-fixes-2019-12-18
Signed-off-by: Dave Airlie <airlied@redhat.com>
From: Joonas Lahtinen <joonas.lahtinen@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20191219124635.GA16068@jlahtine-desk.ger.corp.intel.com
. Make sure to unregister a component for Exynos gscaler driver
when the driver is removed.
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Merge tag 'exynos-drm-fixes-for-v5.5-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/daeinki/drm-exynos into drm-fixes
Just one bug fixup
. Make sure to unregister a component for Exynos gscaler driver
when the driver is removed.
Signed-off-by: Dave Airlie <airlied@redhat.com>
From: Inki Dae <inki.dae@samsung.com>
Link: https://patchwork.freedesktop.org/patch/msgid/1576714013-3788-1-git-send-email-inki.dae@samsung.com
Fix this compiler warning:
kernel/debug/debug_core.c: In function ‘kgdb_cpu_enter’:
arch/parisc/include/asm/cmpxchg.h:48:3: warning: value computed is not used [-Wunused-value]
48 | ((__typeof__(*(ptr)))__xchg((unsigned long)(x), (ptr), sizeof(*(ptr))))
arch/parisc/include/asm/atomic.h:78:30: note: in expansion of macro ‘xchg’
78 | #define atomic_xchg(v, new) (xchg(&((v)->counter), new))
| ^~~~
kernel/debug/debug_core.c:596:4: note: in expansion of macro ‘atomic_xchg’
596 | atomic_xchg(&kgdb_active, cpu);
| ^~~~~~~~~~~
Signed-off-by: Helge Deller <deller@gmx.de>
When I doing fuzzy test, get the memleak report:
BUG: memory leak
unreferenced object 0xffff88837af80000 (size 4096):
comm "memleak", pid 3557, jiffies 4294817681 (age 112.499s)
hex dump (first 32 bytes):
00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................
20 00 00 00 10 01 00 00 00 00 00 00 01 00 00 00 ...............
backtrace:
[<000000001c894df8>] bio_alloc_bioset+0x393/0x590
[<000000008b139a3c>] bio_copy_user_iov+0x300/0xcd0
[<00000000a998bd8c>] blk_rq_map_user_iov+0x2f1/0x5f0
[<000000005ceb7f05>] blk_rq_map_user+0xf2/0x160
[<000000006454da92>] sg_common_write.isra.21+0x1094/0x1870
[<00000000064bb208>] sg_write.part.25+0x5d9/0x950
[<000000004fc670f6>] sg_write+0x5f/0x8c
[<00000000b0d05c7b>] __vfs_write+0x7c/0x100
[<000000008e177714>] vfs_write+0x1c3/0x500
[<0000000087d23f34>] ksys_write+0xf9/0x200
[<000000002c8dbc9d>] do_syscall_64+0x9f/0x4f0
[<00000000678d8e9a>] entry_SYSCALL_64_after_hwframe+0x49/0xbe
If __blk_rq_map_user_iov() is failed in blk_rq_map_user_iov(),
the bio(s) which is allocated before this failing will leak. The
refcount of the bio(s) is init to 1 and increased to 2 by calling
bio_get(), but __blk_rq_unmap_user() only decrease it to 1, so
the bio cannot be freed. Fix it by calling blk_rq_unmap_user().
Reviewed-by: Bob Liu <bob.liu@oracle.com>
Reported-by: Hulk Robot <hulkci@huawei.com>
Signed-off-by: Yang Yingliang <yangyingliang@huawei.com>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
coypright -> copyright
Reported-by: Kate Stewart <kstewart@linuxfoundation.org>
Signed-off-by: Stefan Haberland <sth@linux.ibm.com>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
If for whatever reason the dasd_eckd_check_characteristics() function
exits after at least some paths have their configuration data
allocated those data is never freed again. In the error case the
device->private pointer is set to NULL and dasd_eckd_uncheck_device()
will exit without freeing the path data because of this NULL pointer.
Fix by calling dasd_eckd_clear_conf_data() for error cases.
Also use dasd_eckd_clear_conf_data() in dasd_eckd_uncheck_device()
to avoid code duplication.
Reported-by: Qian Cai <cai@lca.pw>
Reviewed-by: Jan Hoeppner <hoeppner@linux.ibm.com>
Signed-off-by: Stefan Haberland <sth@linux.ibm.com>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
The max data count (mdc) is an unsigned 16-bit integer value as per AR
documentation and is received via ccw_device_get_mdc() for a specific
path mask from the CIO layer. The function itself also always returns a
positive mdc value or 0 in case mdc isn't supported or couldn't be
determined.
Though, the comment for this function describes a negative return value
to indicate failures.
As a result, the DASD device driver interprets the return value of
ccw_device_get_mdc() incorrectly. The error case is essentially a dead
code path.
To fix this behaviour, check explicitly for a return value of 0 and
change the comment for ccw_device_get_mdc() accordingly.
This fix merely enables the error code path in the DASD functions
get_fcx_max_data() and verify_fcx_max_data(). The actual functionality
stays the same and is still correct.
Reviewed-by: Cornelia Huck <cohuck@redhat.com>
Signed-off-by: Jan Höppner <hoeppner@linux.ibm.com>
Acked-by: Peter Oberparleiter <oberpar@linux.ibm.com>
Reviewed-by: Stefan Haberland <sth@linux.ibm.com>
Signed-off-by: Stefan Haberland <sth@linux.ibm.com>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
Avoid that running test nvme/012 from the blktests suite triggers the
following false positive lockdep complaint:
============================================
WARNING: possible recursive locking detected
5.0.0-rc3-xfstests-00015-g1236f7d60242 #841 Not tainted
--------------------------------------------
ksoftirqd/1/16 is trying to acquire lock:
000000000282032e (&(&fq->mq_flush_lock)->rlock){..-.}, at: flush_end_io+0x4e/0x1d0
but task is already holding lock:
00000000cbadcbc2 (&(&fq->mq_flush_lock)->rlock){..-.}, at: flush_end_io+0x4e/0x1d0
other info that might help us debug this:
Possible unsafe locking scenario:
CPU0
----
lock(&(&fq->mq_flush_lock)->rlock);
lock(&(&fq->mq_flush_lock)->rlock);
*** DEADLOCK ***
May be due to missing lock nesting notation
1 lock held by ksoftirqd/1/16:
#0: 00000000cbadcbc2 (&(&fq->mq_flush_lock)->rlock){..-.}, at: flush_end_io+0x4e/0x1d0
stack backtrace:
CPU: 1 PID: 16 Comm: ksoftirqd/1 Not tainted 5.0.0-rc3-xfstests-00015-g1236f7d60242 #841
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
Call Trace:
dump_stack+0x67/0x90
__lock_acquire.cold.45+0x2b4/0x313
lock_acquire+0x98/0x160
_raw_spin_lock_irqsave+0x3b/0x80
flush_end_io+0x4e/0x1d0
blk_mq_complete_request+0x76/0x110
nvmet_req_complete+0x15/0x110 [nvmet]
nvmet_bio_done+0x27/0x50 [nvmet]
blk_update_request+0xd7/0x2d0
blk_mq_end_request+0x1a/0x100
blk_flush_complete_seq+0xe5/0x350
flush_end_io+0x12f/0x1d0
blk_done_softirq+0x9f/0xd0
__do_softirq+0xca/0x440
run_ksoftirqd+0x24/0x50
smpboot_thread_fn+0x113/0x1e0
kthread+0x121/0x140
ret_from_fork+0x3a/0x50
Cc: Christoph Hellwig <hch@infradead.org>
Cc: Ming Lei <ming.lei@redhat.com>
Cc: Hannes Reinecke <hare@suse.com>
Signed-off-by: Bart Van Assche <bvanassche@acm.org>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
This patch fixes the following sparse warnings:
block/bsg-lib.c:269:19: warning: incorrect type in initializer (different base types)
block/bsg-lib.c:269:19: expected int sts
block/bsg-lib.c:269:19: got restricted blk_status_t [usertype]
block/bsg-lib.c:286:16: warning: incorrect type in return expression (different base types)
block/bsg-lib.c:286:16: expected restricted blk_status_t
block/bsg-lib.c:286:16: got int [assigned] sts
Cc: Martin Wilck <mwilck@suse.com>
Fixes: d46fe2cb2d ("block: drop device references in bsg_queue_rq()")
Signed-off-by: Bart Van Assche <bvanassche@acm.org>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
Switch page deallocation table (pdt) driver to use pfn instead of a page
pointer in soft_offline_page().
Fixes: feec24a613 ("mm, soft-offline: convert parameter to pfn")
Signed-off-by: Helge Deller <deller@gmx.de>
Including:
- Fix kmemleak warning in IOVA code
- Fix compile warnings on ARM32/64 in dma-iommu code due to
dma_mask type mismatches
- Make ISA reserved regions relaxable, so that VFIO can assign
devices which have such regions defined
- Fix mapping errors resulting in IO page-faults in the VT-d
driver
- Make sure direct mappings for a domain are created after the
default domain is updated
- Map ISA reserved regions in the VT-d driver with correct
permissions
- Remove unneeded check for PSI capability in the IOTLB flush
code of the VT-d driver
- Lockdep fix iommu_dma_prepare_msi()
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Merge tag 'iommu-fixes-v5.5-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/joro/iommu
Pull iommu fixes from Joerg Roedel:
- Fix kmemleak warning in IOVA code
- Fix compile warnings on ARM32/64 in dma-iommu code due to dma_mask
type mismatches
- Make ISA reserved regions relaxable, so that VFIO can assign devices
which have such regions defined
- Fix mapping errors resulting in IO page-faults in the VT-d driver
- Make sure direct mappings for a domain are created after the default
domain is updated
- Map ISA reserved regions in the VT-d driver with correct permissions
- Remove unneeded check for PSI capability in the IOTLB flush code of
the VT-d driver
- Lockdep fix iommu_dma_prepare_msi()
* tag 'iommu-fixes-v5.5-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/joro/iommu:
iommu/dma: Relax locking in iommu_dma_prepare_msi()
iommu/vt-d: Remove incorrect PSI capability check
iommu/vt-d: Allocate reserved region for ISA with correct permission
iommu: set group default domain before creating direct mappings
iommu/vt-d: Fix dmar pte read access not set error
iommu/vt-d: Set ISA bridge reserved region as relaxable
iommu/dma: Rationalise types for DMA masks
iommu/iova: Init the struct iova to fix the possible memleak
* Add support of APUv4 and fix an assignment of simswap GPIO.
* Add Siemens CONNECT X300 to DMI table to avoid stuck during boot.
* Correct arguments of WMI call on HP Envy x360 15-cp0xxx model.
* Fix the mlx-bootctl sysfs attributes to be device related.
The following is an automated git shortlog grouped by driver:
hp-wmi:
- Make buffer for HPWMI_FEATURE2_QUERY 128 bytes
pcengines-apuv2:
- Spelling fixes in the driver
- detect apuv4 board
- fix simswap GPIO assignment
platform/mellanox:
- fix the mlx-bootctl sysfs
pmc_atom:
- Add Siemens CONNECT X300 to critclk_systems DMI table
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Merge tag 'platform-drivers-x86-v5.5-2' of git://git.infradead.org/linux-platform-drivers-x86
Pull x86 platform driver fixes from Andy Shevchenko:
"Bucket of fixes for PDx86. Note, that there is no ABI breakage in
Mellanox driver because it has been introduced in v5.5-rc1, so we can
change it.
Summary:
- Add support of APUv4 and fix an assignment of simswap GPIO
- Add Siemens CONNECT X300 to DMI table to avoid stuck during boot
- Correct arguments of WMI call on HP Envy x360 15-cp0xxx model
- Fix the mlx-bootctl sysfs attributes to be device related"
* tag 'platform-drivers-x86-v5.5-2' of git://git.infradead.org/linux-platform-drivers-x86:
platform/x86: pcengines-apuv2: Spelling fixes in the driver
platform/x86: pcengines-apuv2: detect apuv4 board
platform/x86: pcengines-apuv2: fix simswap GPIO assignment
platform/x86: pmc_atom: Add Siemens CONNECT X300 to critclk_systems DMI table
platform/x86: hp-wmi: Make buffer for HPWMI_FEATURE2_QUERY 128 bytes
platform/mellanox: fix the mlx-bootctl sysfs
Here are some small char and other driver fixes for 5.5-rc3.
The most noticable one is a much-reported fix for a random driver issue
that came up from 5.5-rc1 compat_ioctl cleanups. The others are a chunk
of habanalab driver fixes and intel_th driver fixes and new device ids.
All have been in linux-next with no reported issues.
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Merge tag 'char-misc-5.5-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc
Pull char/misc driver fixes from Greg KH:
"Here are some small char and other driver fixes for 5.5-rc3.
The most noticable one is a much-reported fix for a random driver
issue that came up from 5.5-rc1 compat_ioctl cleanups. The others are
a chunk of habanalab driver fixes and intel_th driver fixes and new
device ids.
All have been in linux-next with no reported issues"
* tag 'char-misc-5.5-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc:
random: don't forget compat_ioctl on urandom
intel_th: msu: Fix window switching without windows
intel_th: Fix freeing IRQs
intel_th: pci: Add Elkhart Lake SOC support
intel_th: pci: Add Comet Lake PCH-V support
habanalabs: remove variable 'val' set but not used
habanalabs: rate limit error msg on waiting for CS
Here are some small staging driver fixes for a number of reported
issues.
The majority here are some fixes for the wfx driver, but also in here is
a comedi driver fix found during some code review, and an axis-fifo
build dependancy issue to resolve some reported testing problems.
All of these have been in linux-next with no reported issues.
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Merge tag 'staging-5.5-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/staging
Pull staging driver fixes from Greg KH:
"Here are some small staging driver fixes for a number of reported
issues.
The majority here are some fixes for the wfx driver, but also in here
is a comedi driver fix found during some code review, and an axis-fifo
build dependancy issue to resolve some reported testing problems.
All of these have been in linux-next with no reported issues"
* tag 'staging-5.5-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/staging:
staging: wfx: fix wrong error message
staging: wfx: fix hif_set_mfp() with big endian hosts
staging: wfx: detect race condition in WEP authentication
staging: wfx: ensure that retry policy always fallbacks to MCS0 / 1Mbps
staging: wfx: fix rate control handling
staging: wfx: firmware does not support more than 32 total retries
staging: wfx: use boolean appropriately
staging: wfx: fix counter overflow
staging: wfx: fix case of lack of tx_retry_policies
staging: wfx: fix the cache of rate policies on interface reset
staging: axis-fifo: add unspecified HAS_IOMEM dependency
staging: comedi: gsc_hpdi: check dma_alloc_coherent() return value
HiSilicon Taishan v110 CPUs didn't implement CSV2 field of the
ID_AA64PFR0_EL1, but spectre-v2 is mitigated by hardware, so
whitelist the MIDR in the safe list.
Signed-off-by: Wei Li <liwei391@huawei.com>
[hanjun: re-write the commit log]
Signed-off-by: Hanjun Guo <guohanjun@huawei.com>
Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
Here are some small tty and serial driver fixes for 5.5-rc3.
Only 4 small patches here:
- atmel serial driver fix
- msm_serial driver fix
- sprd serial driver fix
- tty core port fix
The last tty core fix should resolve a long-standing bug with a race
at port creation time that some people would see, and Sudip finally
tracked down.
All of these have been in linux-next with no reported issues.
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Merge tag 'tty-5.5-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/tty
Pull tty/serial fixes from Greg KH:
"Here are some small tty and serial driver fixes for 5.5-rc3.
Only four small patches here:
- atmel serial driver fix
- msm_serial driver fix
- sprd serial driver fix
- tty core port fix
The last tty core fix should resolve a long-standing bug with a race
at port creation time that some people would see, and Sudip finally
tracked down.
All of these have been in linux-next with no reported issues"
* tag 'tty-5.5-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/tty:
tty/serial: atmel: fix out of range clock divider handling
tty: link tty and port before configuring it as console
serial: sprd: Add clearing break interrupt operation
tty: serial: msm_serial: Fix lockup for sysrq and oops
Here are some small USB fixes for some reported issues.
Included in here are:
- xhci build warning fix
- ehci disconnect warning fix
- usbip lockup fix and error cleanup fix
- typec build fix
All of these have been in linux-next with no reported issues.
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Merge tag 'usb-5.5-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb
Pull USB fixes from Greg KH:
"Here are some small USB fixes for some reported issues.
Included in here are:
- xhci build warning fix
- ehci disconnect warning fix
- usbip lockup fix and error cleanup fix
- typec build fix
All of these have been in linux-next with no reported issues"
* tag 'usb-5.5-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb:
usb: xhci: Fix build warning seen with CONFIG_PM=n
usbip: Fix error path of vhci_recv_ret_submit()
usbip: Fix receive error in vhci-hcd when using scatter-gather
USB: EHCI: Do not return -EPIPE when hub is disconnected
usb: typec: fusb302: Fix an undefined reference to 'extcon_get_state'
- A host of fixes for the Intel baytrail and cherryview:
properly serialize all register accesses and add the irqchip
with the gpiochip as we need to, fix some pin lists and
initialize the hardware in the right order.
- Fix the Aspeed G6 LPC configuration.
- Handle a possible NULL pointer exception in the core.
- Fix the Kconfig dependencies for the Equilibrium driver.
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Merge tag 'pinctrl-v5.5-3' of git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-pinctrl
Pull pin control fixes from Linus Walleij:
"Sorry that this fixes pull request took a while. Too much christmas
business going on.
This contains a few really important Intel fixes and some odd fixes:
- A host of fixes for the Intel baytrail and cherryview: properly
serialize all register accesses and add the irqchip with the
gpiochip as we need to, fix some pin lists and initialize the
hardware in the right order.
- Fix the Aspeed G6 LPC configuration.
- Handle a possible NULL pointer exception in the core.
- Fix the Kconfig dependencies for the Equilibrium driver"
* tag 'pinctrl-v5.5-3' of git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-pinctrl:
pinctrl: ingenic: Fixup PIN_CONFIG_OUTPUT config
pinctrl: Modify Kconfig to fix linker error
pinctrl: pinmux: fix a possible null pointer in pinmux_can_be_used_for_gpio
pinctrl: aspeed-g6: Fix LPC/eSPI mux configuration
pinctrl: cherryview: Pass irqchip when adding gpiochip
pinctrl: cherryview: Add GPIO <-> pin mapping ranges via callback
pinctrl: cherryview: Split out irq hw-init into a separate helper function
pinctrl: baytrail: Pass irqchip when adding gpiochip
pinctrl: baytrail: Add GPIO <-> pin mapping ranges via callback
pinctrl: baytrail: Update North Community pin list
pinctrl: baytrail: Really serialize all register accesses
Mainly does:
- capitalize gpio and bios to GPIO and BIOS
- capitalize beginning of comments
- add periods in multi-line comments
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
GPIO stuff on APUv4 seems to be the same as on APUv2, so we just
need to match on DMI data.
Signed-off-by: Enrico Weigelt, metux IT consult <info@metux.net>
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
The mapping entry has to hold the GPIO line index instead of
controller's register number.
Fixes: 5037d4ddda ("platform/x86: pcengines-apuv2: wire up simswitch gpio as led")
Signed-off-by: Enrico Weigelt, metux IT consult <info@metux.net>
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
The CONNECT X300 uses the PMC clock for on-board components and gets
stuck during boot if the clock is disabled. Therefore, add this
device to the critical systems list.
Tested on CONNECT X300.
Fixes: 648e921888 ("clk: x86: Stop marking clocks as CLK_IS_CRITICAL")
Signed-off-by: Michael Haener <michael.haener@siemens.com>
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
At least on the HP Envy x360 15-cp0xxx model the WMI interface
for HPWMI_FEATURE2_QUERY requires an outsize of at least 128 bytes,
otherwise it fails with an error code 5 (HPWMI_RET_INVALID_PARAMETERS):
Dec 06 00:59:38 kernel: hp_wmi: query 0xd returned error 0x5
We do not care about the contents of the buffer, we just want to know
if the HPWMI_FEATURE2_QUERY command is supported.
This commits bumps the buffer size, fixing the error.
Fixes: 8a1513b493 ("hp-wmi: limit hotkey enable")
Cc: stable@vger.kernel.org
BugLink: https://bugzilla.redhat.com/show_bug.cgi?id=1520703
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
This is a follow-up commit for the sysfs attributes to change
from DRIVER_ATTR to DEVICE_ATTR according to some initial comments.
In such case, it's better to point the sysfs path to the device
itself instead of the driver. The ABI document is also updated.
Fixes: 79e29cb8fb ("platform/mellanox: Add bootctl driver for Mellanox BlueField Soc")
Signed-off-by: Liming Sun <lsun@mellanox.com>
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Fix the following sparse warning:
fs/xfs/libxfs/xfs_trans_resv.c:206:1: warning: symbol 'xfs_rtalloc_log_count' was not declared. Should it be static?
Fixes: b1de6fc752 ("xfs: fix log reservation overflows when allocating large rt extents")
Signed-off-by: Chen Wandun <chenwandun@huawei.com>
Reviewed-by: Darrick J. Wong <darrick.wong@oracle.com>
Signed-off-by: Darrick J. Wong <darrick.wong@oracle.com>
gnttab_request_version() always sets the gnttab_interface variable
and the assertions to check for empty gnttab_interface is unnecessary.
The patch eliminates multiple such assertions.
Signed-off-by: Aditya Pakki <pakki001@umn.edu>
Reviewed-by: Juergen Gross <jgross@suse.com>
Signed-off-by: Juergen Gross <jgross@suse.com>
Hangbin Liu