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There are both positive and negative options about this feature.
At first, I thought it was a good idea, but actually Linus stated a
negative opinion (https://lkml.org/lkml/2019/9/29/227). I admit it
is ugly and annoying.
The baseline I'd like to keep is the compile-test of uapi headers.
(Otherwise, kernel developers have no way to ensure the correctness
of the exported headers.)
I will maintain a small build rule in usr/include/Makefile.
Remove the other header test functionality.
Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
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This tool is only used by drivers/video/logo/Makefile. No reason to
keep it in scripts/.
Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
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Shorten the code. It still works in the same way.
Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
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Pull ARM SoC fixes from Olof Johansson:
"A set of fixes that have trickled in over the last couple of weeks:
- MAINTAINER update for Cavium/Marvell ThunderX2
- stm32 tweaks to pinmux for Joystick/Camera, and RAM allocation for
CAN interfaces
- i.MX fixes for voltage regulator GPIO mappings, fixes voltage
scaling issues
- More i.MX fixes for various issues on i.MX eval boards: interrupt
storm due to u-boot leaving pins in new states, fixing power button
config, a couple of compatible-string corrections.
- Powerdown and Suspend/Resume fixes for Allwinner A83-based tablets
- A few documentation tweaks and a fix of a memory leak in the reset
subsystem"
* tag 'armsoc-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/soc/soc:
MAINTAINERS: update Cavium ThunderX2 maintainers
ARM: dts: stm32: change joystick pinctrl definition on stm32mp157c-ev1
ARM: dts: stm32: remove OV5640 pinctrl definition on stm32mp157c-ev1
ARM: dts: stm32: Fix CAN RAM mapping on stm32mp157c
ARM: dts: stm32: relax qspi pins slew-rate for stm32mp157
arm64: dts: zii-ultra: fix ARM regulator GPIO handle
ARM: sunxi: Fix CPU powerdown on A83T
ARM: dts: sun8i-a83t-tbs-a711: Fix WiFi resume from suspend
arm64: dts: imx8mn: fix compatible string for sdma
arm64: dts: imx8mm: fix compatible string for sdma
reset: fix reset_control_ops kerneldoc comment
ARM: dts: imx6-logicpd: Re-enable SNVS power key
soc: imx: gpc: fix initialiser format
ARM: dts: imx6qdl-sabreauto: Fix storm of accelerometer interrupts
arm64: dts: ls1028a: fix a compatible issue
reset: fix reset_control_get_exclusive kerneldoc comment
reset: fix reset_control_lookup kerneldoc comment
reset: fix of_reset_control_get_count kerneldoc comment
reset: fix of_reset_simple_xlate kerneldoc comment
reset: Fix memory leak in reset_control_array_put()
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Pull IIO fixes and staging driver from Greg KH:
"Here is a mix of a number of IIO driver fixes for 5.4-rc7, and a whole
new staging driver.
The IIO fixes resolve some reported issues, all are tiny.
The staging driver addition is the vboxsf filesystem, which is the
VirtualBox guest shared folder code. Hans has been trying to get
filesystem reviewers to review the code for many months now, and
Christoph finally said to just merge it in staging now as it is
stand-alone and the filesystem people can review it easier over time
that way.
I know it's late for this big of an addition, but it is stand-alone.
The code has been in linux-next for a while, long enough to pick up a
few tiny fixes for it already so people are looking at it.
All of these have been in linux-next with no reported issues"
* tag 'staging-5.4-rc7' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/staging:
staging: Fix error return code in vboxsf_fill_super()
staging: vboxsf: fix dereference of pointer dentry before it is null checked
staging: vboxsf: Remove unused including <linux/version.h>
staging: Add VirtualBox guest shared folder (vboxsf) support
iio: adc: stm32-adc: fix stopping dma
iio: imu: inv_mpu6050: fix no data on MPU6050
iio: srf04: fix wrong limitation in distance measuring
iio: imu: adis16480: make sure provided frequency is positive
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Pull char/misc driver fixes from Greg KH:
"Here are a number of late-arrival driver fixes for issues reported for
some char/misc drivers for 5.4-rc7
These all come from the different subsystem/driver maintainers as
things that they had reports for and wanted to see fixed.
All of these have been in linux-next with no reported issues"
* tag 'char-misc-5.4-rc7' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc:
intel_th: pci: Add Jasper Lake PCH support
intel_th: pci: Add Comet Lake PCH support
intel_th: msu: Fix possible memory leak in mode_store()
intel_th: msu: Fix overflow in shift of an unsigned int
intel_th: msu: Fix missing allocation failure check on a kstrndup
intel_th: msu: Fix an uninitialized mutex
intel_th: gth: Fix the window switching sequence
soundwire: slave: fix scanf format
soundwire: intel: fix intel_register_dai PDI offsets and numbers
interconnect: Add locking in icc_set_tag()
interconnect: qcom: Fix icc_onecell_data allocation
soundwire: depend on ACPI || OF
soundwire: depend on ACPI
thunderbolt: Drop unnecessary read when writing LC command in Ice Lake
thunderbolt: Fix lockdep circular locking depedency warning
thunderbolt: Read DP IN adapter first two dwords in one go
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Pull timer fixes from Thomas Gleixner:
"A small set of fixes for timekeepoing and clocksource drivers:
- VDSO data was updated conditional on the availability of a VDSO
capable clocksource. This causes the VDSO functions which do not
depend on a VDSO capable clocksource to operate on stale data.
Always update unconditionally.
- Prevent a double free in the mediatek driver
- Use the proper helper in the sh_mtu2 driver so it won't attempt to
initialize non-existing interrupts"
* 'timers-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
timekeeping/vsyscall: Update VDSO data unconditionally
clocksource/drivers/sh_mtu2: Do not loop using platform_get_irq_by_name()
clocksource/drivers/mediatek: Fix error handling
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Pull pin control fixes from Linus Walleij:
- Fix glitch risks in the Intel GPIO
- Fix the Intel Cherryview valid irq mask calculation.
- Allocate the Intel Cherryview irqchip dynamically.
- Fix the valid mask init sequency on the ST STMFX driver.
* tag 'pinctrl-v5.4-3' of git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-pinctrl:
pinctrl: stmfx: fix valid_mask init sequence
pinctrl: cherryview: Allocate IRQ chip dynamic
pinctrl: cherryview: Fix irq_valid_mask calculation
pinctrl: intel: Avoid potential glitches if pin is in GPIO mode
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Pull watchdog fixes from Wim Van Sebroeck:
- cpwd: fix build regression
- pm8916_wdt: fix pretimeout registration flow
- meson: Fix the wrong value of left time
- imx_sc_wdt: Pretimeout should follow SCU firmware format
- bd70528: Add MODULE_ALIAS to allow module auto loading
* tag 'linux-watchdog-5.4-rc7' of git://www.linux-watchdog.org/linux-watchdog:
watchdog: bd70528: Add MODULE_ALIAS to allow module auto loading
watchdog: imx_sc_wdt: Pretimeout should follow SCU firmware format
watchdog: meson: Fix the wrong value of left time
watchdog: pm8916_wdt: fix pretimeout registration flow
watchdog: cpwd: fix build regression
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Pull networking fixes from David Miller:
1) BPF sample build fixes from Björn Töpel
2) Fix powerpc bpf tail call implementation, from Eric Dumazet.
3) DCCP leaks jiffies on the wire, fix also from Eric Dumazet.
4) Fix crash in ebtables when using dnat target, from Florian Westphal.
5) Fix port disable handling whne removing bcm_sf2 driver, from Florian
Fainelli.
6) Fix kTLS sk_msg trim on fallback to copy mode, from Jakub Kicinski.
7) Various KCSAN fixes all over the networking, from Eric Dumazet.
8) Memory leaks in mlx5 driver, from Alex Vesker.
9) SMC interface refcounting fix, from Ursula Braun.
10) TSO descriptor handling fixes in stmmac driver, from Jose Abreu.
11) Add a TX lock to synchonize the kTLS TX path properly with crypto
operations. From Jakub Kicinski.
12) Sock refcount during shutdown fix in vsock/virtio code, from Stefano
Garzarella.
13) Infinite loop in Intel ice driver, from Colin Ian King.
* git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net: (108 commits)
ixgbe: need_wakeup flag might not be set for Tx
i40e: need_wakeup flag might not be set for Tx
igb/igc: use ktime accessors for skb->tstamp
i40e: Fix for ethtool -m issue on X722 NIC
iavf: initialize ITRN registers with correct values
ice: fix potential infinite loop because loop counter being too small
qede: fix NULL pointer deref in __qede_remove()
net: fix data-race in neigh_event_send()
vsock/virtio: fix sock refcnt holding during the shutdown
net: ethernet: octeon_mgmt: Account for second possible VLAN header
mac80211: fix station inactive_time shortly after boot
net/fq_impl: Switch to kvmalloc() for memory allocation
mac80211: fix ieee80211_txq_setup_flows() failure path
ipv4: Fix table id reference in fib_sync_down_addr
ipv6: fixes rt6_probe() and fib6_nh->last_probe init
net: hns: Fix the stray netpoll locks causing deadlock in NAPI path
net: usb: qmi_wwan: add support for DW5821e with eSIM support
CDC-NCM: handle incomplete transfer of MTU
nfc: netlink: fix double device reference drop
NFC: st21nfca: fix double free
...
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Pull block fixes from Jens Axboe:
- Two NVMe device removal crash fixes, and a compat fixup for for an
ioctl that was introduced in this release (Anton, Charles, Max - via
Keith)
- Missing error path mutex unlock for drbd (Dan)
- cgroup writeback fixup on dead memcg (Tejun)
- blkcg online stats print fix (Tejun)
* tag 'for-linus-2019-11-08' of git://git.kernel.dk/linux-block:
cgroup,writeback: don't switch wbs immediately on dead wbs if the memcg is dead
block: drbd: remove a stray unlock in __drbd_send_protocol()
blkcg: make blkcg_print_stat() print stats only for online blkgs
nvme: change nvme_passthru_cmd64 to explicitly mark rsvd
nvme-multipath: fix crash in nvme_mpath_clear_ctrl_paths
nvme-rdma: fix a segmentation fault during module unload
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Jeff Kirsher says:
====================
Intel Wired LAN Driver Fixes 2019-11-08
This series contains fixes to igb, igc, ixgbe, i40e, iavf and ice
drivers.
Colin Ian King fixes a potentially wrap-around counter in a for-loop.
Nick fixes the default ITR values for the iavf driver to 50 usecs
interval.
Arkadiusz fixes 'ethtool -m' for X722 devices where the correct value
cannot be obtained from the firmware, so add X722 to the check to ensure
the wrong value is not returned.
Jake fixes igb and igc drivers in their implementation of launch time
support by declaring skb->tstamp value as ktime_t instead of s64.
Magnus fixes ixgbe and i40e where the need_wakeup flag for transmit may
not be set for AF_XDP sockets that are only used to send packets.
====================
Signed-off-by: David S. Miller <davem@davemloft.net>
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The need_wakeup flag for Tx might not be set for AF_XDP sockets that
are only used to send packets. This happens if there is at least one
outstanding packet that has not been completed by the hardware and we
get that corresponding completion (which will not generate an
interrupt since interrupts are disabled in the napi poll loop) between
the time we stopped processing the Tx completions and interrupts are
enabled again. In this case, the need_wakeup flag will have been
cleared at the end of the Tx completion processing as we believe we
will get an interrupt from the outstanding completion at a later point
in time. But if this completion interrupt occurs before interrupts
are enable, we lose it and should at that point really have set the
need_wakeup flag since there are no more outstanding completions that
can generate an interrupt to continue the processing. When this
happens, user space will see a Tx queue need_wakeup of 0 and skip
issuing a syscall, which means will never get into the Tx processing
again and we have a deadlock.
This patch introduces a quick fix for this issue by just setting the
need_wakeup flag for Tx to 1 all the time. I am working on a proper
fix for this that will toggle the flag appropriately, but it is more
challenging than I anticipated and I am afraid that this patch will
not be completed before the merge window closes, therefore this easier
fix for now. This fix has a negative performance impact in the range
of 0% to 4%. Towards the higher end of the scale if you have driver
and application on the same core and issue a lot of packets, and
towards no negative impact if you use two cores, lower transmission
speeds and/or a workload that also receives packets.
Signed-off-by: Magnus Karlsson <magnus.karlsson@intel.com>
Tested-by: Andrew Bowers <andrewx.bowers@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
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The need_wakeup flag for Tx might not be set for AF_XDP sockets that
are only used to send packets. This happens if there is at least one
outstanding packet that has not been completed by the hardware and we
get that corresponding completion (which will not generate an
interrupt since interrupts are disabled in the napi poll loop) between
the time we stopped processing the Tx completions and interrupts are
enabled again. In this case, the need_wakeup flag will have been
cleared at the end of the Tx completion processing as we believe we
will get an interrupt from the outstanding completion at a later point
in time. But if this completion interrupt occurs before interrupts
are enable, we lose it and should at that point really have set the
need_wakeup flag since there are no more outstanding completions that
can generate an interrupt to continue the processing. When this
happens, user space will see a Tx queue need_wakeup of 0 and skip
issuing a syscall, which means will never get into the Tx processing
again and we have a deadlock.
This patch introduces a quick fix for this issue by just setting the
need_wakeup flag for Tx to 1 all the time. I am working on a proper
fix for this that will toggle the flag appropriately, but it is more
challenging than I anticipated and I am afraid that this patch will
not be completed before the merge window closes, therefore this easier
fix for now. This fix has a negative performance impact in the range
of 0% to 4%. Towards the higher end of the scale if you have driver
and application on the same core and issue a lot of packets, and
towards no negative impact if you use two cores, lower transmission
speeds and/or a workload that also receives packets.
Signed-off-by: Magnus Karlsson <magnus.karlsson@intel.com>
Tested-by: Andrew Bowers <andrewx.bowers@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
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When implementing launch time support in the igb and igc drivers, the
skb->tstamp value is assumed to be a s64, but it's declared as a ktime_t
value.
Although ktime_t is typedef'd to s64 it wasn't always, and the kernel
provides accessors for ktime_t values.
Use the ktime_to_timespec64 and ktime_set accessors instead of directly
assuming that the variable is always an s64.
This improves portability if the code is ever moved to another kernel
version, or if the definition of ktime_t ever changes again in the
future.
Signed-off-by: Jacob Keller <jacob.e.keller@intel.com>
Acked-by: Vinicius Costa Gomes <vinicius.gomes@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
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This patch contains fix for a problem with command:
'ethtool -m <dev>'
which breaks functionality of:
'ethtool <dev>'
when called on X722 NIC
Disallowed update of link phy_types on X722 NIC
Currently correct value cannot be obtained from FW
Previously wrong value returned by FW was used and was
a root cause for incorrect output of 'ethtool <dev>' command
Signed-off-by: Arkadiusz Kubalewski <arkadiusz.kubalewski@intel.com>
Tested-by: Andrew Bowers <andrewx.bowers@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
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Since commit 92418fb14750 ("i40e/i40evf: Use usec value instead of reg
value for ITR defines") the driver tracks the interrupt throttling
intervals in single usec units, although the actual ITRN registers are
programmed in 2 usec units. Most register programming flows in the driver
correctly handle the conversion, although it is currently not applied when
the registers are initialized to their default values. Most of the time
this doesn't present a problem since the default values are usually
immediately overwritten through the standard adaptive throttling mechanism,
or updated manually by the user, but if adaptive throttling is disabled and
the interval values are left alone then the incorrect value will persist.
Since the intended default interval of 50 usecs (vs. 100 usecs as
programmed) performs better for most traffic workloads, this can lead to
performance regressions.
This patch adds the correct conversion when writing the initial values to
the ITRN registers.
Signed-off-by: Nicholas Nunley <nicholas.d.nunley@intel.com>
Tested-by: Andrew Bowers <andrewx.bowers@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
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Currently the for-loop counter i is a u8 however it is being checked
against a maximum value hw->num_tx_sched_layers which is a u16. Hence
there is a potential wrap-around of counter i back to zero if
hw->num_tx_sched_layers is greater than 255. Fix this by making i
a u16.
Addresses-Coverity: ("Infinite loop")
Fixes: b36c598c999c ("ice: Updates to Tx scheduler code")
Signed-off-by: Colin Ian King <colin.king@canonical.com>
Tested-by: Andrew Bowers <andrewx.bowers@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
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While rebooting the system with SR-IOV vfs enabled leads
to below crash due to recurrence of __qede_remove() on the VF
devices (first from .shutdown() flow of the VF itself and
another from PF's .shutdown() flow executing pci_disable_sriov())
This patch adds a safeguard in __qede_remove() flow to fix this,
so that driver doesn't attempt to remove "already removed" devices.
[ 194.360134] BUG: unable to handle kernel NULL pointer dereference at 00000000000008dc
[ 194.360227] IP: [<ffffffffc03553c4>] __qede_remove+0x24/0x130 [qede]
[ 194.360304] PGD 0
[ 194.360325] Oops: 0000 [#1] SMP
[ 194.360360] Modules linked in: tcp_lp fuse tun bridge stp llc devlink bonding ip_set nfnetlink ib_isert iscsi_target_mod ib_srpt target_core_mod ib_srp scsi_transport_srp scsi_tgt ib_ipoib ib_umad rpcrdma sunrpc rdma_ucm ib_uverbs ib_iser rdma_cm iw_cm ib_cm libiscsi scsi_transport_iscsi dell_smbios iTCO_wdt iTCO_vendor_support dell_wmi_descriptor dcdbas vfat fat pcc_cpufreq skx_edac intel_powerclamp coretemp intel_rapl iosf_mbi kvm_intel kvm irqbypass crc32_pclmul ghash_clmulni_intel aesni_intel lrw gf128mul glue_helper ablk_helper cryptd qedr ib_core pcspkr ses enclosure joydev ipmi_ssif sg i2c_i801 lpc_ich mei_me mei wmi ipmi_si ipmi_devintf ipmi_msghandler tpm_crb acpi_pad acpi_power_meter xfs libcrc32c sd_mod crc_t10dif crct10dif_generic crct10dif_pclmul crct10dif_common crc32c_intel mgag200
[ 194.361044] qede i2c_algo_bit drm_kms_helper qed syscopyarea sysfillrect nvme sysimgblt fb_sys_fops ttm nvme_core mpt3sas crc8 ptp drm pps_core ahci raid_class scsi_transport_sas libahci libata drm_panel_orientation_quirks nfit libnvdimm dm_mirror dm_region_hash dm_log dm_mod [last unloaded: ip_tables]
[ 194.361297] CPU: 51 PID: 7996 Comm: reboot Kdump: loaded Not tainted 3.10.0-1062.el7.x86_64 #1
[ 194.361359] Hardware name: Dell Inc. PowerEdge MX840c/0740HW, BIOS 2.4.6 10/15/2019
[ 194.361412] task: ffff9cea9b360000 ti: ffff9ceabebdc000 task.ti: ffff9ceabebdc000
[ 194.361463] RIP: 0010:[<ffffffffc03553c4>] [<ffffffffc03553c4>] __qede_remove+0x24/0x130 [qede]
[ 194.361534] RSP: 0018:ffff9ceabebdfac0 EFLAGS: 00010282
[ 194.361570] RAX: 0000000000000000 RBX: ffff9cd013846098 RCX: 0000000000000000
[ 194.361621] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ffff9cd013846098
[ 194.361668] RBP: ffff9ceabebdfae8 R08: 0000000000000000 R09: 0000000000000000
[ 194.361715] R10: 00000000bfe14201 R11: ffff9ceabfe141e0 R12: 0000000000000000
[ 194.361762] R13: ffff9cd013846098 R14: 0000000000000000 R15: ffff9ceab5e48000
[ 194.361810] FS: 00007f799c02d880(0000) GS:ffff9ceacb0c0000(0000) knlGS:0000000000000000
[ 194.361865] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 194.361903] CR2: 00000000000008dc CR3: 0000001bdac76000 CR4: 00000000007607e0
[ 194.361953] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[ 194.362002] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[ 194.362051] PKRU: 55555554
[ 194.362073] Call Trace:
[ 194.362109] [<ffffffffc0355500>] qede_remove+0x10/0x20 [qede]
[ 194.362180] [<ffffffffb97d0f3e>] pci_device_remove+0x3e/0xc0
[ 194.362240] [<ffffffffb98b3c52>] __device_release_driver+0x82/0xf0
[ 194.362285] [<ffffffffb98b3ce3>] device_release_driver+0x23/0x30
[ 194.362343] [<ffffffffb97c86d4>] pci_stop_bus_device+0x84/0xa0
[ 194.362388] [<ffffffffb97c87e2>] pci_stop_and_remove_bus_device+0x12/0x20
[ 194.362450] [<ffffffffb97f153f>] pci_iov_remove_virtfn+0xaf/0x160
[ 194.362496] [<ffffffffb97f1aec>] sriov_disable+0x3c/0xf0
[ 194.362534] [<ffffffffb97f1bc3>] pci_disable_sriov+0x23/0x30
[ 194.362599] [<ffffffffc02f83c3>] qed_sriov_disable+0x5e3/0x650 [qed]
[ 194.362658] [<ffffffffb9622df6>] ? kfree+0x106/0x140
[ 194.362709] [<ffffffffc02cc0c0>] ? qed_free_stream_mem+0x70/0x90 [qed]
[ 194.362754] [<ffffffffb9622df6>] ? kfree+0x106/0x140
[ 194.362803] [<ffffffffc02cd659>] qed_slowpath_stop+0x1a9/0x1d0 [qed]
[ 194.362854] [<ffffffffc035544e>] __qede_remove+0xae/0x130 [qede]
[ 194.362904] [<ffffffffc03554e0>] qede_shutdown+0x10/0x20 [qede]
[ 194.362956] [<ffffffffb97cf90a>] pci_device_shutdown+0x3a/0x60
[ 194.363010] [<ffffffffb98b180b>] device_shutdown+0xfb/0x1f0
[ 194.363066] [<ffffffffb94b66c6>] kernel_restart_prepare+0x36/0x40
[ 194.363107] [<ffffffffb94b66e2>] kernel_restart+0x12/0x60
[ 194.363146] [<ffffffffb94b6959>] SYSC_reboot+0x229/0x260
[ 194.363196] [<ffffffffb95f200d>] ? handle_mm_fault+0x39d/0x9b0
[ 194.363253] [<ffffffffb942b621>] ? __switch_to+0x151/0x580
[ 194.363304] [<ffffffffb9b7ec28>] ? __schedule+0x448/0x9c0
[ 194.363343] [<ffffffffb94b69fe>] SyS_reboot+0xe/0x10
[ 194.363387] [<ffffffffb9b8bede>] system_call_fastpath+0x25/0x2a
[ 194.363430] Code: f9 e9 37 ff ff ff 90 0f 1f 44 00 00 55 48 89 e5 41 57 41 56 41 55 4c 8d af 98 00 00 00 41 54 4c 89 ef 41 89 f4 53 e8 4c e4 55 f9 <80> b8 dc 08 00 00 01 48 89 c3 4c 8d b8 c0 08 00 00 4c 8b b0 c0
[ 194.363712] RIP [<ffffffffc03553c4>] __qede_remove+0x24/0x130 [qede]
[ 194.363764] RSP <ffff9ceabebdfac0>
[ 194.363791] CR2: 00000000000008dc
Signed-off-by: Manish Chopra <manishc@marvell.com>
Signed-off-by: Ariel Elior <aelior@marvell.com>
Signed-off-by: Sudarsana Kalluru <skalluru@marvell.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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Pull pwm fix from Thierry Reding:
"One more fix to keep a reference to the driver's module as long as
there are users of the PWM exposed by the driver"
* tag 'pwm/for-5.4-rc7' of git://git.kernel.org/pub/scm/linux/kernel/git/thierry.reding/linux-pwm:
pwm: bcm-iproc: Prevent unloading the driver module while in use
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Octeon's input ring-buffer entry has 14 bits-wide size field, so to account
for second possible VLAN header max_mtu must be further reduced.
Fixes: 109cc16526c6d ("ethernet/cavium: use core min/max MTU checking")
Signed-off-by: Alexander Sverdlin <alexander.sverdlin@nokia.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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The owner member of struct pwm_ops must be set to THIS_MODULE to
increase the reference count of the module such that the module cannot
be removed while its code is in use.
Fixes: daa5abc41c80 ("pwm: Add support for Broadcom iProc PWM controller")
Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
Reviewed-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: Thierry Reding <thierry.reding@gmail.com>
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Pull power management fix from Rafael Wysocki:
"Fix an 'unchecked MSR access' warning in the intel_pstate cpufreq
driver (Srinivas Pandruvada)"
* tag 'pm-5.4-rc7' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm:
cpufreq: intel_pstate: Fix invalid EPB setting
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Pull drm fixes from Dave Airlie:
"Weekly fixes for drm: amdgpu has a few but they are pretty scattered
fixes, the fbdev one is a build regression fix that we didn't want to
risk leaving out, otherwise a couple of i915, one radeon and a core
atomic fix.
core:
- add missing documentation for GEM shmem madvise helpers
- Fix for a state dereference in atomic self-refresh helpers
fbdev:
- One compilation fix for c2p fbdev helpers
amdgpu:
- Fix navi14 display issue root cause and revert workaround
- GPU reset scheduler interaction fix
- Fix fan boost on multi-GPU
- Gfx10 and sdma5 fixes for navi
- GFXOFF fix for renoir
- Add navi14 PCI ID
- GPUVM fix for arcturus
radeon:
- Port an SI power fix from amdgpu
i915:
- Fix HPD poll to avoid kworker consuming a lot of cpu cycles.
- Do not use TBT type for non Type-C ports"
* tag 'drm-fixes-2019-11-08' of git://anongit.freedesktop.org/drm/drm:
drm/radeon: fix si_enable_smc_cac() failed issue
drm/amdgpu/renoir: move gfxoff handling into gfx9 module
drm/amdgpu: add warning for GRBM 1-cycle delay issue in gfx9
drm/amdgpu: add dummy read by engines for some GCVM status registers in gfx10
drm/amdgpu: register gpu instance before fan boost feature enablment
drm/amd/swSMU: fix smu workload bit map error
drm/shmem: Add docbook comments for drm_gem_shmem_object madvise fields
drm/amdgpu: add navi14 PCI ID
Revert "drm/amd/display: setting the DIG_MODE to the correct value."
drm/amd/display: Add ENGINE_ID_DIGD condition check for Navi14
drm/amdgpu: dont schedule jobs while in reset
drm/amdgpu/arcturus: properly set BANK_SELECT and FRAGMENT_SIZE
drm/atomic: fix self-refresh helpers crtc state dereference
drm/i915/dp: Do not switch aux to TBT mode for non-TC ports
drm/i915: Avoid HPD poll detect triggering a new detect cycle
fbdev: c2p: Fix link failure on non-inlining
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Pull clk fixes from Stephen Boyd:
"Fixes for various clk driver issues that happened because of code we
merged this merge window.
The Amlogic driver was missing some flags causing rates to be rounded
improperly or clk_set_rate() to fail. The Samsung driver wasn't
freeing everything on error paths and improperly saving/restoring PLL
state across suspend/resume. The at91 driver was calling msleep() too
early when scheduling hadn't started, so we put in place a quick
solution until we can handle this sort of problem in the core
framework.
There were also problems with the Allwinner driver and operator
precedence being incorrect causing subtle bugs. Finally, the TI driver
was duplicating aliases and not delaying long enough leading to some
unexpected timeouts"
* tag 'clk-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/clk/linux:
clk: ti: clkctrl: Fix failed to enable error with double udelay timeout
clk: ti: dra7-atl-clock: Remove ti_clk_add_alias call
clk: sunxi-ng: a80: fix the zero'ing of bits 16 and 18
clk: sunxi: Fix operator precedence in sunxi_divs_clk_setup
clk: ast2600: Fix enabling of clocks
clk: at91: avoid sleeping early
clk: imx8m: Use SYS_PLL1_800M as intermediate parent of CLK_ARM
clk: samsung: exynos5420: Preserve PLL configuration during suspend/resume
clk: samsung: exynos542x: Move G3D subsystem clocks to its sub-CMU
clk: samsung: exynos5433: Fix error paths
clk: at91: sam9x60: fix programmable clock
clk: meson: g12a: set CLK_MUX_ROUND_CLOSEST on the cpu clock muxes
clk: meson: g12a: fix cpu clock rate setting
clk: meson: gxbb: let sar_adc_clk_div set the parent clock rate
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There are two callers of this function and they both unlock the mutex so
this ends up being a double unlock.
Fixes: 44ed167da748 ("drbd: rcu_read_lock() and rcu_dereference() for tconn->net_conf")
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
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The max value of EPB can only be 0x0F. Attempting to set more than that
triggers an "unchecked MSR access error" warning which happens in
intel_pstate_hwp_force_min_perf() called via cpufreq stop_cpu().
However, it is not even necessary to touch the EPB from intel_pstate,
because it is restored on every CPU online by the intel_epb.c code,
so let that code do the right thing and drop the redundant (and
incorrect) EPB update from intel_pstate.
Fixes: af3b7379e2d70 ("cpufreq: intel_pstate: Force HWP min perf before offline")
Reported-by: Qian Cai <cai@lca.pw>
Cc: 5.2+ <stable@vger.kernel.org> # 5.2+
Signed-off-by: Srinivas Pandruvada <srinivas.pandruvada@linux.intel.com>
[ rjw: Changelog ]
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
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drm-fixes-5.4-2019-11-06:
amdgpu:
- Fix navi14 display issue root cause and revert workaround
- GPU reset scheduler interaction fix
- Fix fan boost on multi-GPU
- Gfx10 and sdma5 fixes for navi
- GFXOFF fix for renoir
- Add navi14 PCI ID
- GPUVM fix for arcturus
radeon:
- Port an SI power fix from amdgpu
Signed-off-by: Dave Airlie <airlied@redhat.com>
From: Alex Deucher <alexdeucher@gmail.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20191107032241.1021217-1-alexander.deucher@amd.com
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- Fix HPD poll to avoid kworker consuming a lot of cpu cycles.
- Do not use TBT type for non Type-C ports.
Signed-off-by: Dave Airlie <airlied@redhat.com>
From: Rodrigo Vivi <rodrigo.vivi@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20191106213958.GA16525@intel.com
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- Some new documentation for GEM shmem madvise helpers
- Fix for a state dereference in atomic self-refresh helpers
- One compilation fix for c2p fbdev helpers
Signed-off-by: Dave Airlie <airlied@redhat.com>
From: Maxime Ripard <mripard@kernel.org>
Link: https://patchwork.freedesktop.org/patch/msgid/20191107082215.GA34850@gilmour.lan
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This patch fixes the problem of the spin locks, originally
meant for the netpoll path of hns driver, causing deadlock in
the normal NAPI poll path. The issue happened due to the presence
of the stray leftover spin lock code related to the netpoll,
whose support was earlier removed from the HNS[1], got activated
due to enabling of NET_POLL_CONTROLLER switch.
Earlier background:
The netpoll handling code originally had this bug(as identified
by Marc Zyngier[2]) of wrong spin lock API being used which did
not disable the interrupts and hence could cause locking issues.
i.e. if the lock were first acquired in context to thread like
'ip' util and this lock if ever got later acquired again in
context to the interrupt context like TX/RX (Interrupts could
always pre-empt the lock holding task and acquire the lock again)
and hence could cause deadlock.
Proposed Solution:
1. If the netpoll was enabled in the HNS driver, which is not
right now, we could have simply used spin_[un]lock_irqsave()
2. But as netpoll is disabled, therefore, it is best to get rid
of the existing locks and stray code for now. This should
solve the problem reported by Marc.
[1] https://git.kernel.org/torvalds/c/4bd2c03be7
[2] https://patchwork.ozlabs.org/patch/1189139/
Fixes: 4bd2c03be707 ("net: hns: remove ndo_poll_controller")
Cc: lipeng <lipeng321@huawei.com>
Cc: Yisen Zhuang <yisen.zhuang@huawei.com>
Cc: Eric Dumazet <edumazet@google.com>
Cc: David S. Miller <davem@davemloft.net>
Reported-by: Marc Zyngier <maz@kernel.org>
Acked-by: Marc Zyngier <maz@kernel.org>
Tested-by: Marc Zyngier <maz@kernel.org>
Signed-off-by: Salil Mehta <salil.mehta@huawei.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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Exactly same layout as the default DW5821e module, just a different
vid/pid.
The QMI interface is exposed in USB configuration #1:
P: Vendor=413c ProdID=81e0 Rev=03.18
S: Manufacturer=Dell Inc.
S: Product=DW5821e-eSIM Snapdragon X20 LTE
S: SerialNumber=0123456789ABCDEF
C: #Ifs= 6 Cfg#= 1 Atr=a0 MxPwr=500mA
I: If#=0x0 Alt= 0 #EPs= 3 Cls=ff(vend.) Sub=ff Prot=ff Driver=qmi_wwan
I: If#=0x1 Alt= 0 #EPs= 1 Cls=03(HID ) Sub=00 Prot=00 Driver=usbhid
I: If#=0x2 Alt= 0 #EPs= 3 Cls=ff(vend.) Sub=00 Prot=00 Driver=option
I: If#=0x3 Alt= 0 #EPs= 3 Cls=ff(vend.) Sub=00 Prot=00 Driver=option
I: If#=0x4 Alt= 0 #EPs= 3 Cls=ff(vend.) Sub=00 Prot=00 Driver=option
I: If#=0x5 Alt= 0 #EPs= 2 Cls=ff(vend.) Sub=ff Prot=ff Driver=option
Signed-off-by: Aleksander Morgado <aleksander@aleksander.es>
Signed-off-by: David S. Miller <davem@davemloft.net>
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A malicious device may give half an answer when asked
for its MTU. The driver will proceed after this with
a garbage MTU. Anything but a complete answer must be treated
as an error.
V2: used sizeof as request by Alexander
Reported-and-tested-by: syzbot+0631d878823ce2411636@syzkaller.appspotmail.com
Signed-off-by: Oliver Neukum <oneukum@suse.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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Pull HID fixes from Jiri Kosina:
"Two fixes for the HID subsystem:
- regression fix for i2c-hid power management (Hans de Goede)
- signed vs unsigned API fix for Wacom driver (Jason Gerecke)"
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/hid/hid:
HID: wacom: generic: Treat serial number and related fields as unsigned
HID: i2c-hid: Send power-on command after reset
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Fix to return negative error code -ENOMEM from the error handling
case instead of 0, as done elsewhere in this function.
Fixes: df4028658f9d ("staging: Add VirtualBox guest shared folder (vboxsf) support")
Signed-off-by: Wei Yongjun <weiyongjun1@huawei.com>
Reviewed-by: Hans de Goede <hdegoede@redhat.com>
Link: https://lore.kernel.org/r/20191106115954.114678-1-weiyongjun1@huawei.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Currently the pointer dentry is being dereferenced before it is
being null checked. Fix this by only dereferencing dentry once
we know it is not null.
Addresses-Coverity: ("Dereference before null check")
Fixes: df4028658f9d ("staging: Add VirtualBox guest shared folder (vboxsf) support")
Signed-off-by: Colin Ian King <colin.king@canonical.com>
Link: https://lore.kernel.org/r/20191105175108.79824-1-colin.king@canonical.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Remove including <linux/version.h> that don't need it.
Signed-off-by: YueHaibing <yuehaibing@huawei.com>
Link: https://lore.kernel.org/r/20191107015923.100013-1-yuehaibing@huawei.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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With stmfx_pinctrl_gpio_init_valid_mask callback, gpio_valid_mask was used
to initialize gpiochip valid_mask for gpiolib. But gpio_valid_mask was not
yet initialized. gpio_valid_mask required gpio-ranges to be registered,
this is the case after gpiochip_add_data call. But init_valid_mask
callback is also called under gpiochip_add_data. gpio_valid_mask
initialization cannot be moved before gpiochip_add_data because
gpio-ranges are not registered.
So, it is not possible to use init_valid_mask callback.
To avoid this issue, get rid of valid_mask and rely on ranges.
Fixes: da9b142ab2c5 ("pinctrl: stmfx: Use the callback to populate valid_mask")
Signed-off-by: Amelie Delaunay <amelie.delaunay@st.com>
Link: https://lore.kernel.org/r/20191104100908.10880-1-amelie.delaunay@st.com
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
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The variable nfcid_skb is not changed in the callee nfc_hci_get_param()
if error occurs. Consequently, the freed variable nfcid_skb will be
freed again, resulting in a double free bug. Set nfcid_skb to NULL after
releasing it to fix the bug.
Signed-off-by: Pan Bian <bianpan2016@163.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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Since old firmware does not support HCLGE_OPC_PF_RST_DONE, it will
return -EOPNOTSUPP to the driver when received this command. So
for this case, it should just print a warning and return success
to the caller.
Fixes: 72e2fb07997c ("net: hns3: clear reset interrupt status in hclge_irq_handle()")
Signed-off-by: Huazhong Tan <tanhuazhong@huawei.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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Saeed Mahamees says:
====================
Mellanox, mlx5 fixes 2019-11-06
This series introduces some fixes to mlx5 driver.
Please pull and let me know if there is any problem.
No -stable this time.
====================
Signed-off-by: David S. Miller <davem@davemloft.net>
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Functions like phy_modify_paged() read the current page, on Realtek
PHY's this means reading the value of register 0x1f. Add special
handling for reading this register, similar to what we do already
in r8168g_mdio_write(). Currently we read a random value that by
chance seems to be 0 always.
Fixes: a2928d28643e ("r8169: use paged versions of phylib MDIO access functions")
Signed-off-by: Heiner Kallweit <hkallweit1@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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IOC bit must be only set in the last descriptor. Move the logic up a
little bit to make sure it's set in the correct descriptor.
Signed-off-by: Jose Abreu <Jose.Abreu@synopsys.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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When using addressing > 32 bits the TSO first descriptor only has the
header so we can't set the payload field for this descriptor. Let's
reset the variable so that buffer 2 value is zero.
Fixes: a993db88d17d ("net: stmmac: Enable support for > 32 Bits addressing in XGMAC")
Signed-off-by: Jose Abreu <Jose.Abreu@synopsys.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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Currently, stmmac_rx() is counting the number of descriptors but it
should count the number of packets as specified by the NAPI limit.
Fix this.
Fixes: ec222003bd94 ("net: stmmac: Prepare to add Split Header support")
Signed-off-by: Jose Abreu <Jose.Abreu@synopsys.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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MMC interrupts were being enabled, which is not what we want because it
will lead to a storm of interrupts that are not handled at all. Fix it
by disabling all MMC interrupts for XGMAC.
Fixes: b6cdf09f51c2 ("net: stmmac: xgmac: Implement MMC counters")
Signed-off-by: Jose Abreu <Jose.Abreu@synopsys.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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When in AVB mode we need to disable flow control to prevent MAC from
pausing in TX side.
Fixes: ec6ea8e3eee9 ("net: stmmac: Add CBS support in XGMAC2")
Signed-off-by: Jose Abreu <Jose.Abreu@synopsys.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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Fix incorrect precedence of operators. For reference: AV implies AV
Feature but RAV implies only RX side AV Feature. As we want full AV
features we need to check RAV.
Fixes: c2b69474d63b ("net: stmmac: xgmac: Correct RAVSEL field interpretation")
Signed-off-by: Jose Abreu <Jose.Abreu@synopsys.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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When we change between Transmission Scheduling Algorithms, we need to
clear previous values so that the new chosen algorithm is correctly
selected.
Fixes: ec6ea8e3eee9 ("net: stmmac: Add CBS support in XGMAC2")
Signed-off-by: Jose Abreu <Jose.Abreu@synopsys.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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Split Header length is only available when L34T == 0. Fix this by
correctly checking if L34T is zero before trying to get Header length.
Fixes: 67afd6d1cfdf ("net: stmmac: Add Split Header support and enable it in XGMAC cores")
Signed-off-by: Jose Abreu <Jose.Abreu@synopsys.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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Masahiro Yamada
Linus Torvalds
David S. Miller
Magnus Karlsson
Jacob Keller
Arkadiusz Kubalewski
Nicholas Nunley
Colin Ian King
Manish Chopra
Alexander Sverdlin
Uwe Kleine-König
Dan Carpenter
Srinivas Pandruvada
Dave Airlie
Salil Mehta
Aleksander Morgado
Oliver Neukum
Wei Yongjun
YueHaibing
Amelie Delaunay
Pan Bian
Huazhong Tan
Heiner Kallweit
Jose Abreu