It's nice if the phy is online before we register the netdev
so try to do that first.
Stop trying to do "second tried" to register the phy, it
works perfectly fine the first time.
Stop remvoving the phy in uninit. Remove it when the
driver is remove():d, symmetric to where it is added, in
probe().
Suggested-by: Andrew Lunn <andrew@lunn.ch>
Reviewed-by: Andrew Lunn <andrew@lunn.ch>
Reported-by: David Miller <davem@davemloft.net>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
This implements the missing MTU setting for the RTL8366RB
switch.
Apart from supporting jumboframes, this rids us of annoying
boot messages like this:
realtek-smi switch: nonfatal error -95 setting MTU on port 0
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Reviewed-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
BLOCK_PRIV is never used after it was introduced.
So better to remove it.
Reported-by: Hulk Robot <hulkci@huawei.com>
Signed-off-by: Wang Hai <wanghai38@huawei.com>
Acked-by: Willem de Bruijn <willemb@google.com>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
DIGITAL_NFC_DEP_REQ_RES_TAILROOM is never used after it was introduced.
DIGITAL_NFC_DEP_REQ_RES_HEADROOM is no more used after below
commit e8e7f42175 ("NFC: digital: Remove useless call to skb_reserve()")
Remove them.
Reported-by: Hulk Robot <hulkci@huawei.com>
Signed-off-by: Wang Hai <wanghai38@huawei.com>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Remove SRVL_CTRL_PKT_SIZE which is defined more than once.
Reported-by: Hulk Robot <hulkci@huawei.com>
Signed-off-by: Wang Hai <wanghai38@huawei.com>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Commit 0da4c3d393 ("net: phy: add Lynx PCS module") added the files in
./drivers/net/pcs/, but the new LYNX PCS MODULE section refers to
./drivers/net/phy/.
Hence, ./scripts/get_maintainer.pl --self-test=patterns complains:
warning: no file matches F: drivers/net/phy/pcs-lynx.c
Repair the LYNX PCS MODULE section by referring to the right location.
Signed-off-by: Lukas Bulwahn <lukas.bulwahn@gmail.com>
Reviewed-by: Andrew Lunn <andrew@lunn.ch>
Acked-by: Ioana Ciornei <ioana.ciornei@nxp.com>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Florian Fainelli says:
====================
net: dsa: bcm_sf2: Ensure MDIO diversion is used
Changes in v2:
- export of_update_property() to permit building bcm_sf2 as a module
- provided a better explanation of the problem being solved after
explaining it to Andrew during the v1 review
====================
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Registering our slave MDIO bus outside of the OF infrastructure is
necessary in order to avoid creating double references of the same
Device Tree nodes, however it is not sufficient to guarantee that the
MDIO bus diversion is used because of_phy_connect() will still resolve
to a valid PHY phandle and it will connect to the PHY using its parent
MDIO bus which is still the SF2 master MDIO bus. The reason for that is
because BCM7445 systems were already shipped with a Device Tree blob
looking like this (irrelevant parts omitted for simplicity):
ports {
#address-cells = <1>;
#size-cells = <0>;
port@1 {
phy-mode = "rgmii-txid";
phy-handle = <&phy0>;
reg = <1>;
label = "rgmii_1";
};
...
mdio@403c0 {
...
phy0: ethernet-phy@0 {
broken-turn-around;
device_type = "ethernet-phy";
max-speed = <0x3e8>;
reg = <0>;
compatible = "brcm,bcm53125", "ethernet-phy-ieee802.3-c22";
};
};
There is a hardware issue with chip revisions (Dx) that lead to the
development of the following commits:
461cd1b03e ("net: dsa: bcm_sf2: Register our slave MDIO bus")
536fab5bf5 ("net: dsa: bcm_sf2: Do not register slave MDIO bus with OF")
b8c6cd1d31 ("net: dsa: bcm_sf2: do not use indirect reads and writes for 7445E0")
There should have been an internal MDIO bus node created for the chip
revision (Dx) that suffers from this problem, but it did not happen back
then.
Had that happen, that we should have correctly parented phy@0 (bcm53125
below) as child node of the internal MDIO bus, but the production Device
Tree blob that was shipped with the firmware targeted the fixed version
of the chip, despite both the affected and corrected chips being shipped
into production.
The problem is that of_phy_connect() for port@1 will happily resolve the
'phy-handle' from the mdio@403c0 node, which bypasses the diversion
completely. This results in this double programming that the diversion
refers to and aims to avoid. In order to force of_phy_connect() to fail,
and have DSA call to dsa_slave_phy_connect(), we must deactivate
ethernet-phy@0 from mdio@403c0, and the best way to do that is by
removing the phandle property completely.
Signed-off-by: Florian Fainelli <f.fainelli@gmail.com>
Reviewed-by: Andrew Lunn <andrew@lunn.ch>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
We will need to remove some OF properties in drivers/net/dsa/bcm_sf2.c
with a subsequent commit. Export of_remove_property() to modules so we
can keep bcm_sf2 modular and provide an empty stub for when CONFIG_OF is
disabled to maintain the ability to compile test.
Signed-off-by: Florian Fainelli <f.fainelli@gmail.com>
Acked-by: Rob Herring <robh@kernel.org>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Edward Cree says:
====================
sfc: TXQ refactor
Refactor and unify partner-TXQ handling in the EF100 and legacy drivers.
The main thrust of this series is to remove from the legacy (Siena/EF10)
driver the assumption that a netdev TX queue has precisely two hardware
TXQs (checksummed and unchecksummed) associated with it, so that in
future we can have more (e.g. for handling inner-header checksums) or
fewer (e.g. to free up hardware queues for XDP usage).
Changes from v1:
* better explain patch #1 in the commit message, and rename
xmit_more_available to xmit_pending
* add new patch #2 applying the same approach to ef100, for consistency
====================
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Use efx_for_each_channel_tx_queue() rather than efx_tx_queue_partner().
Make some related simplifications of efx_nic_tx_is_empty() to remove
entry points that aren't used.
Signed-off-by: Edward Cree <ecree@solarflare.com>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Instead of open-coding the calculation with efx_tx_queue_partner(), use
the functions that iterate over numbers of queues other than 2 with
efx_for_each_channel_tx_queue().
Signed-off-by: Edward Cree <ecree@solarflare.com>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
As in the Siena/EF10 case, it minimises cacheline ping-pong between
the TX and completion paths.
Signed-off-by: Edward Cree <ecree@solarflare.com>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
This should cause no functional change; merely make there only be one
design of xmit_more handling to understand. As with the EF10/Siena
version, we set tx_queue->xmit_pending when we queue up a TX, and
clear it when we ring the doorbell (in ef100_notify_tx_desc).
While we're at it, make ef100_notify_tx_desc static since nothing
outside of ef100_tx.c uses it.
Signed-off-by: Edward Cree <ecree@solarflare.com>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Instead of using efx_tx_queue_partner(), which relies on the assumption
that tx_queues_per_channel is 2, efx_tx_send_pending() iterates over
txqs with efx_for_each_channel_tx_queue().
We unconditionally set tx_queue->xmit_pending (renamed from
xmit_more_available), then condition on xmit_more for the call to
efx_tx_send_pending(), which will clear xmit_pending. Thus, after an
xmit_more TX, the doorbell is un-rung and xmit_pending is true.
Signed-off-by: Edward Cree <ecree@solarflare.com>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
We got slightly different patches removing a double word
in a comment in net/ipv4/raw.c - picked the version from net.
Simple conflict in drivers/net/ethernet/ibm/ibmvnic.c. Use cached
values instead of VNIC login response buffer (following what
commit 507ebe6444 ("ibmvnic: Fix use-after-free of VNIC login
response buffer") did).
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
- Fix GENERIC_LOCKBREAK dependency on PREEMPTION in Kconfig broken
because of a typo.
- Update defconfigs.
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Merge tag 's390-5.9-5' of git://git.kernel.org/pub/scm/linux/kernel/git/s390/linux
Pull s390 fixes from Vasily Gorbik:
- Fix GENERIC_LOCKBREAK dependency on PREEMPTION in Kconfig broken
because of a typo
- Update defconfigs
* tag 's390-5.9-5' of git://git.kernel.org/pub/scm/linux/kernel/git/s390/linux:
s390: update defconfigs
s390: fix GENERIC_LOCKBREAK dependency typo in Kconfig
produces writable and executable .text.ftrace_trampoline section which
is rejected by the kernel.
- Remove the exporting of cpu_logical_map() as the Tegra driver has now
been fixed and no longer uses this function.
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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:
- Fix the loading of modules built with binutils-2.35. This version
produces writable and executable .text.ftrace_trampoline section
which is rejected by the kernel.
- Remove the exporting of cpu_logical_map() as the Tegra driver has now
been fixed and no longer uses this function.
* tag 'arm64-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux:
arm64/module: set trampoline section flags regardless of CONFIG_DYNAMIC_FTRACE
arm64: Remove exporting cpu_logical_map symbol
- Fix reference counting of operating performance points (OPP)
tables (Viresh Kumar).
- Address intel_pstate driver interface issues, mostly related
to switching operation modes and handling CPU offline and
online and system-wide suspend/resume with hardware-managed
P-states (HWP) enabled (Rafael Wysocki).
- Fix the maximum frequency computation in the intel_pstate driver
with turbo P-states disabled by the platform firmware and HWP
enabled (Francisco Jerez).
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Merge tag 'pm-5.9-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm
Pull power management fixes from Rafael Wysocki:
"These fix reference counting in the operating performance points (OPP)
framework and address a few intel_pstate driver issues, mostly related
to switching driver operation modes and similar with hardware-managed
P-states (HWP) enabled.
Specifics:
- Fix reference counting of operating performance points (OPP) tables
(Viresh Kumar).
- Address intel_pstate driver interface issues, mostly related to
switching operation modes and handling CPU offline and online and
system-wide suspend/resume with hardware-managed P-states (HWP)
enabled (Rafael Wysocki).
- Fix the maximum frequency computation in the intel_pstate driver
with turbo P-states disabled by the platform firmware and HWP
enabled (Francisco Jerez)"
* tag 'pm-5.9-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm:
cpufreq: intel_pstate: Fix intel_pstate_get_hwp_max() for turbo disabled
cpufreq: intel_pstate: Free memory only when turning off
cpufreq: intel_pstate: Add ->offline and ->online callbacks
cpufreq: intel_pstate: Tweak the EPP sysfs interface
cpufreq: intel_pstate: Update cached EPP in the active mode
cpufreq: intel_pstate: Refuse to turn off with HWP enabled
opp: Don't drop reference for an OPP table that was never parsed
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Merge tag 'block-5.9-2020-09-04' of git://git.kernel.dk/linux-block
Pull block fixes from Jens Axboe:
"A bit larger than usual this week, mostly due to the NVMe fixes
arriving late for -rc3 and hence didn't make last weeks pull request.
- NVMe:
- instance leak and io boundary fixes from Keith
- fc locking fix from Christophe
- various tcp/rdma reset during traffic fixes from Sagi
- pci use-after-free fix from Tong
- tcp target null deref fix from Ziye
- Locking fix for partition removal (Christoph)
- Ensure bdi->io_pages is always set (me)
- Fixup for hd struct reference (Ming)
- Fix for zero length bvecs (Ming)
- Two small blk-iocost fixes (Tejun)"
* tag 'block-5.9-2020-09-04' of git://git.kernel.dk/linux-block:
block: allow for_each_bvec to support zero len bvec
blk-stat: make q->stats->lock irqsafe
blk-iocost: ioc_pd_free() shouldn't assume irq disabled
block: fix locking in bdev_del_partition
block: release disk reference in hd_struct_free_work
block: ensure bdi->io_pages is always initialized
nvme-pci: cancel nvme device request before disabling
nvme: only use power of two io boundaries
nvme: fix controller instance leak
nvmet-fc: Fix a missed _irqsave version of spin_lock in 'nvmet_fc_fod_op_done()'
nvme: Fix NULL dereference for pci nvme controllers
nvme-rdma: fix reset hang if controller died in the middle of a reset
nvme-rdma: fix timeout handler
nvme-rdma: serialize controller teardown sequences
nvme-tcp: fix reset hang if controller died in the middle of a reset
nvme-tcp: fix timeout handler
nvme-tcp: serialize controller teardown sequences
nvme: have nvme_wait_freeze_timeout return if it timed out
nvme-fabrics: don't check state NVME_CTRL_NEW for request acceptance
nvmet-tcp: Fix NULL dereference when a connect data comes in h2cdata pdu
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Merge tag 'io_uring-5.9-2020-09-04' of git://git.kernel.dk/linux-block
Pull io_uring fixes from Jens Axboe:
- EAGAIN with O_NONBLOCK retry fix
- Two small fixes for registered files (Jiufei)
* tag 'io_uring-5.9-2020-09-04' of git://git.kernel.dk/linux-block:
io_uring: no read/write-retry on -EAGAIN error and O_NONBLOCK marked file
io_uring: set table->files[i] to NULL when io_sqe_file_register failed
io_uring: fix removing the wrong file in __io_sqe_files_update()
resulting from an incorrect ADC conversion are too high and fire an
emergency shutdown (Tony Lindgren)
- Don't suppress negative temp for qcom spmi as they are valid and
userspace needs them (Veera Vegivada)
- Fix use-after-free in thermal_zone_device_unregister reported by
Kasan (Dmitry Osipenko)
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Merge tag 'thermal-v5.9-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/thermal/linux
Pull thermal fixes from Daniel Lezcano:
- Fix bogus thermal shutdowns for omap4430 where bogus values resulting
from an incorrect ADC conversion are too high and fire an emergency
shutdown (Tony Lindgren)
- Don't suppress negative temp for qcom spmi as they are valid and
userspace needs them (Veera Vegivada)
- Fix use-after-free in thermal_zone_device_unregister reported by
Kasan (Dmitry Osipenko)
* tag 'thermal-v5.9-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/thermal/linux:
thermal: core: Fix use-after-free in thermal_zone_device_unregister()
thermal: qcom-spmi-temp-alarm: Don't suppress negative temp
thermal: ti-soc-thermal: Fix bogus thermal shutdowns for omap4430
Core:
- drop ACPI CSRT table reference after using it
- fix of_dma_router_xlate() error handling
Drivers: Off fixes in:
- idxd
- at_hdmac
- pl330
- dw-edma
- jz478
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Merge tag 'dmaengine-fix-5.9-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/vkoul/dmaengine
Pull dmaengine fixes from Vinod Koul:
"A couple of core fixes and odd driver fixes for dmaengine subsystem:
Core:
- drop ACPI CSRT table reference after using it
- fix of_dma_router_xlate() error handling
Drivers fixes in idxd, at_hdmac, pl330, dw-edma and jz478"
* tag 'dmaengine-fix-5.9-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/vkoul/dmaengine:
dmaengine: ti: k3-udma: Update rchan_oes_offset for am654 SYSFW ABI 3.0
drivers/dma/dma-jz4780: Fix race condition between probe and irq handler
dmaengine: dw-edma: Fix scatter-gather address calculation
dmaengine: ti: k3-udma: Fix the TR initialization for prep_slave_sg
dmaengine: pl330: Fix burst length if burst size is smaller than bus width
dmaengine: at_hdmac: add missing kfree() call in at_dma_xlate()
dmaengine: at_hdmac: add missing put_device() call in at_dma_xlate()
dmaengine: at_hdmac: check return value of of_find_device_by_node() in at_dma_xlate()
dmaengine: of-dma: Fix of_dma_router_xlate's of_dma_xlate handling
dmaengine: idxd: reset states after device disable or reset
dmaengine: acpi: Put the CSRT table after using it
A collection of small changes, nothing intrusive:
* Remaining tasklet API conversions, now all sound stuff have been
converted
* A few HD-audio and USB-audio quirks and minor fixes
* FireWire Tascam and Digi00xx fixes
* Drop of kernel WARNING from PCM OSS for syzkaller
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Merge tag 'sound-5.9-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound
Pull sound fixes from Takashi Iwai:
"A collection of small changes, nothing intrusive:
- remaining tasklet API conversions, now all sound stuff have been
converted
- a few HD-audio and USB-audio quirks and minor fixes
- FireWire Tascam and Digi00xx fixes
- drop a kernel WARNING from PCM OSS for syzkaller"
* tag 'sound-5.9-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound: (29 commits)
ALSA: hda/realtek - Improved routing for Thinkpad X1 7th/8th Gen
ALSA: hda: use consistent HDAudio spelling in comments/docs
ALSA: hda: add dev_dbg log when driver is not selected
ALSA: hda: fix a runtime pm issue in SOF when integrated GPU is disabled
ALSA: hda: hdmi - add Rocketlake support
ALSA: ua101: convert tasklets to use new tasklet_setup() API
ALSA: usb-audio: convert tasklets to use new tasklet_setup() API
ASoC: txx9: convert tasklets to use new tasklet_setup() API
ASoC: siu: convert tasklets to use new tasklet_setup() API
ASoC: fsl_esai: convert tasklets to use new tasklet_setup() API
ALSA: hdsp: convert tasklets to use new tasklet_setup() API
ALSA: riptide: convert tasklets to use new tasklet_setup() API
ALSA: pci/asihpi: convert tasklets to use new tasklet_setup() API
ALSA: firewire: convert tasklets to use new tasklet_setup() API
ALSA: core: convert tasklets to use new tasklet_setup() API
ALSA: pcm: oss: Remove superfluous WARN_ON() for mulaw sanity check
ALSA: hda - Fix silent audio output and corrupted input on MSI X570-A PRO
ALSA: hda/hdmi: always check pin power status in i915 pin fixup
ALSA: hda/realtek: Add quirk for Samsung Galaxy Book Ion NT950XCJ-X716A
ALSA: usb-audio: Add basic capture support for Pioneer DJ DJM-250MK2
...
amdgpu:
- Fix for 32bit systems
- SW CTF fix
- Update for Sienna Cichlid
- CIK bug fixes
radeon:
- PLL fix
i915:
- Clang build warning fix
- HDCP fixes
nouveau:
- display fixes
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Merge tag 'drm-fixes-2020-09-04' of git://anongit.freedesktop.org/drm/drm
Pull drm fixes from Dave Airlie:
"Not much going on this week, nouveau has a display hw bug workaround,
amdgpu has some PM fixes and CIK regression fixes, one single radeon
PLL fix, and a couple of i915 display fixes.
amdgpu:
- Fix for 32bit systems
- SW CTF fix
- Update for Sienna Cichlid
- CIK bug fixes
radeon:
- PLL fix
i915:
- Clang build warning fix
- HDCP fixes
nouveau:
- display fixes"
* tag 'drm-fixes-2020-09-04' of git://anongit.freedesktop.org/drm/drm:
drm/nouveau/kms/nv50-gp1xx: add WAR for EVO push buffer HW bug
drm/nouveau/kms/nv50-gp1xx: disable notifies again after core update
drm/nouveau/kms/nv50-: add some whitespace before debug message
drm/nouveau/kms/gv100-: Include correct push header in crcc37d.c
drm/radeon: Prefer lower feedback dividers
drm/amdgpu: Fix bug in reporting voltage for CIK
drm/amdgpu: Specify get_argument function for ci_smu_funcs
drm/amd/pm: enable MP0 DPM for sienna_cichlid
drm/amd/pm: avoid false alarm due to confusing softwareshutdowntemp setting
drm/amd/pm: fix is_dpm_running() run error on 32bit system
drm/i915: Clear the repeater bit on HDCP disable
drm/i915: Fix sha_text population code
drm/i915/display: Ensure that ret is always initialized in icl_combo_phy_verify_state
Using tp_reserve to calculate netoff can overflow as
tp_reserve is unsigned int and netoff is unsigned short.
This may lead to macoff receving a smaller value then
sizeof(struct virtio_net_hdr), and if po->has_vnet_hdr
is set, an out-of-bounds write will occur when
calling virtio_net_hdr_from_skb.
The bug is fixed by converting netoff to unsigned int
and checking if it exceeds USHRT_MAX.
This addresses CVE-2020-14386
Fixes: 8913336a7e ("packet: add PACKET_RESERVE sockopt")
Signed-off-by: Or Cohen <orcohen@paloaltonetworks.com>
Signed-off-by: Eric Dumazet <edumazet@google.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Merge emailed patches from Peter Xu:
"This is a small series that I picked up from Linus's suggestion to
simplify cow handling (and also make it more strict) by checking
against page refcounts rather than mapcounts.
This makes uffd-wp work again (verified by running upmapsort)"
Note: this is horrendously bad timing, and making this kind of
fundamental vm change after -rc3 is not at all how things should work.
The saving grace is that it really is a a nice simplification:
8 files changed, 29 insertions(+), 120 deletions(-)
The reason for the bad timing is that it turns out that commit
17839856fd ("gup: document and work around 'COW can break either way'
issue" broke not just UFFD functionality (as Peter noticed), but Mikulas
Patocka also reports that it caused issues for strace when running in a
DAX environment with ext4 on a persistent memory setup.
And we can't just revert that commit without re-introducing the original
issue that is a potential security hole, so making COW stricter (and in
the process much simpler) is a step to then undoing the forced COW that
broke other uses.
Link: https://lore.kernel.org/lkml/alpine.LRH.2.02.2009031328040.6929@file01.intranet.prod.int.rdu2.redhat.com/
* emailed patches from Peter Xu <peterx@redhat.com>:
mm: Add PGREUSE counter
mm/gup: Remove enfornced COW mechanism
mm/ksm: Remove reuse_ksm_page()
mm: do_wp_page() simplification
* pm-cpufreq:
cpufreq: intel_pstate: Fix intel_pstate_get_hwp_max() for turbo disabled
cpufreq: intel_pstate: Free memory only when turning off
cpufreq: intel_pstate: Add ->offline and ->online callbacks
cpufreq: intel_pstate: Tweak the EPP sysfs interface
cpufreq: intel_pstate: Update cached EPP in the active mode
cpufreq: intel_pstate: Refuse to turn off with HWP enabled
This accounts for wp_page_reuse() case, where we reused a page for COW.
Signed-off-by: Peter Xu <peterx@redhat.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
With the more strict (but greatly simplified) page reuse logic in
do_wp_page(), we can safely go back to the world where cow is not
enforced with writes.
This essentially reverts commit 17839856fd ("gup: document and work
around 'COW can break either way' issue"). There are some context
differences due to some changes later on around it:
2170ecfa76 ("drm/i915: convert get_user_pages() --> pin_user_pages()", 2020-06-03)
376a34efa4 ("mm/gup: refactor and de-duplicate gup_fast() code", 2020-06-03)
Some lines moved back and forth with those, but this revert patch should
have striped out and covered all the enforced cow bits anyways.
Suggested-by: Linus Torvalds <torvalds@linux-foundation.org>
Signed-off-by: Peter Xu <peterx@redhat.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Remove the function as the last reference has gone away with the do_wp_page()
changes.
Signed-off-by: Peter Xu <peterx@redhat.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
How about we just make sure we're the only possible valid user fo the
page before we bother to reuse it?
Simplify, simplify, simplify.
And get rid of the nasty serialization on the page lock at the same time.
[peterx: add subject prefix]
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Signed-off-by: Peter Xu <peterx@redhat.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
init_stat() returns 0 on success, same as vfs_lstat(). When it replaced
vfs_lstat(), the '!' was dropped.
Fixes: 716308a533 ("init: add an init_stat helper")
Signed-off-by: Barret Rhoden <brho@google.com>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
The user-after-free bug in thermal_zone_device_unregister() is reported by
KASAN. It happens because struct thermal_zone_device is released during of
device_unregister() invocation, and hence the "tz" variable shouldn't be
touched by thermal_notify_tz_delete(tz->id).
Fixes: 55cdf0a283 ("thermal: core: Add notifications call in the framework")
Signed-off-by: Dmitry Osipenko <digetx@gmail.com>
Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org>
Link: https://lore.kernel.org/r/20200817235854.26816-1-digetx@gmail.com
Currently driver is suppressing the negative temperature
readings from the vadc. Consumers of the thermal zones need
to read the negative temperature too. Don't suppress the
readings.
Fixes: c610afaa21 ("thermal: Add QPNP PMIC temperature alarm driver")
Signed-off-by: Veera Vegivada <vvegivad@codeaurora.org>
Signed-off-by: Guru Das Srinagesh <gurus@codeaurora.org>
Reviewed-by: Stephen Boyd <sboyd@kernel.org>
Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org>
Link: https://lore.kernel.org/r/944856eb819081268fab783236a916257de120e4.1596040416.git.gurus@codeaurora.org
We can sometimes get bogus thermal shutdowns on omap4430 at least with
droid4 running idle with a battery charger connected:
thermal thermal_zone0: critical temperature reached (143 C), shutting down
Dumping out the register values shows we can occasionally get a 0x7f value
that is outside the TRM listed values in the ADC conversion table. And then
we get a normal value when reading again after that. Reading the register
multiple times does not seem help avoiding the bogus values as they stay
until the next sample is ready.
Looking at the TRM chapter "18.4.10.2.3 ADC Codes Versus Temperature", we
should have values from 13 to 107 listed with a total of 95 values. But
looking at the omap4430_adc_to_temp array, the values are off, and the
end values are missing. And it seems that the 4430 ADC table is similar
to omap3630 rather than omap4460.
Let's fix the issue by using values based on the omap3630 table and just
ignoring invalid values. Compared to the 4430 TRM, the omap3630 table has
the missing values added while the TRM table only shows every second
value.
Note that sometimes the ADC register values within the valid table can
also be way off for about 1 out of 10 values. But it seems that those
just show about 25 C too low values rather than too high values. So those
do not cause a bogus thermal shutdown.
Fixes: 1a31270e54 ("staging: omap-thermal: add OMAP4 data structures")
Cc: Merlijn Wajer <merlijn@wizzup.org>
Cc: Pavel Machek <pavel@ucw.cz>
Cc: Sebastian Reichel <sebastian.reichel@collabora.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org>
Link: https://lore.kernel.org/r/20200706183338.25622-1-tony@atomide.com
- Use uintptr_t when casting numbers to pointers
- Keep output expected by 3rd parties: Turn off summary for interval
mode by default.
- BPF is in kernel space, make sure do_validate_kcore_modules() knows
about that.
- Explicitly call out event modifiers in the documentation.
- Fix jevents() allocation of space for regular expressions.
- Address libtraceevent build warnings on 32-bit arches.
- Fix checking of functions returns using ERR_PTR() in 'perf bench'.
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Test results:
The first ones are container based builds of tools/perf with and without libelf
support. Where clang is available, it is also used to build perf with/without
libelf, and building with LIBCLANGLLVM=1 (built-in clang) with gcc and clang
when clang and its devel libraries are installed.
The objtool and samples/bpf/ builds are disabled now that I'm switching from
using the sources in a local volume to fetching them from a http server to
build it inside the container, to make it easier to build in a container cluster.
Those will come back later.
Several are cross builds, the ones with -x-ARCH and the android one, and those
may not have all the features built, due to lack of multi-arch devel packages,
available and being used so far on just a few, like
debian:experimental-x-{arm64,mipsel}.
The 'perf test' one will perform a variety of tests exercising
tools/perf/util/, tools/lib/{bpf,traceevent,etc}, as well as run perf commands
with a variety of command line event specifications to then intercept the
sys_perf_event syscall to check that the perf_event_attr fields are set up as
expected, among a variety of other unit tests.
Then there is the 'make -C tools/perf build-test' ones, that build tools/perf/
with a variety of feature sets, exercising the build with an incomplete set of
features as well as with a complete one. It is planned to have it run on each
of the containers mentioned above, using some container orchestration
infrastructure. Get in contact if interested in helping having this in place.
# export PERF_TARBALL=http://192.168.122.1/perf/perf-5.9.0-rc3.tar.xz
# dm
1 alpine:3.4 : Ok gcc (Alpine 5.3.0) 5.3.0, clang version 3.8.0 (tags/RELEASE_380/final)
2 alpine:3.5 : Ok gcc (Alpine 6.2.1) 6.2.1 20160822, clang version 3.8.1 (tags/RELEASE_381/final)
3 alpine:3.6 : Ok gcc (Alpine 6.3.0) 6.3.0, clang version 4.0.0 (tags/RELEASE_400/final)
4 alpine:3.7 : Ok gcc (Alpine 6.4.0) 6.4.0, Alpine clang version 5.0.0 (tags/RELEASE_500/final) (based on LLVM 5.0.0)
5 alpine:3.8 : Ok gcc (Alpine 6.4.0) 6.4.0, Alpine clang version 5.0.1 (tags/RELEASE_501/final) (based on LLVM 5.0.1)
6 alpine:3.9 : Ok gcc (Alpine 8.3.0) 8.3.0, Alpine clang version 5.0.1 (tags/RELEASE_502/final) (based on LLVM 5.0.1)
7 alpine:3.10 : Ok gcc (Alpine 8.3.0) 8.3.0, Alpine clang version 8.0.0 (tags/RELEASE_800/final) (based on LLVM 8.0.0)
8 alpine:3.11 : Ok gcc (Alpine 9.3.0) 9.3.0, Alpine clang version 9.0.0 (https://git.alpinelinux.org/aports f7f0d2c2b8bcd6a5843401a9a702029556492689) (based on LLVM 9.0.0)
9 alpine:3.12 : Ok gcc (Alpine 9.3.0) 9.3.0, Alpine clang version 10.0.0 (https://gitlab.alpinelinux.org/alpine/aports.git 7445adce501f8473efdb93b17b5eaf2f1445ed4c)
10 alpine:edge : Ok gcc (Alpine 10.2.0) 10.2.0, Alpine clang version 10.0.1
11 alt:p8 : Ok x86_64-alt-linux-gcc (GCC) 5.3.1 20151207 (ALT p8 5.3.1-alt3.M80P.1), clang version 3.8.0 (tags/RELEASE_380/final)
12 alt:p9 : Ok x86_64-alt-linux-gcc (GCC) 8.4.1 20200305 (ALT p9 8.4.1-alt0.p9.1), clang version 10.0.0
13 alt:sisyphus : Ok x86_64-alt-linux-gcc (GCC) 9.3.1 20200518 (ALT Sisyphus 9.3.1-alt1), clang version 10.0.1
14 amazonlinux:1 : Ok gcc (GCC) 7.2.1 20170915 (Red Hat 7.2.1-2), clang version 3.6.2 (tags/RELEASE_362/final)
15 amazonlinux:2 : Ok gcc (GCC) 7.3.1 20180712 (Red Hat 7.3.1-9), clang version 7.0.1 (Amazon Linux 2 7.0.1-1.amzn2.0.2)
16 android-ndk:r12b-arm : Ok arm-linux-androideabi-gcc (GCC) 4.9.x 20150123 (prerelease)
17 android-ndk:r15c-arm : Ok arm-linux-androideabi-gcc (GCC) 4.9.x 20150123 (prerelease)
18 centos:6 : Ok gcc (GCC) 4.4.7 20120313 (Red Hat 4.4.7-23)
19 centos:7 : Ok gcc (GCC) 4.8.5 20150623 (Red Hat 4.8.5-39)
20 centos:8 : Ok gcc (GCC) 8.3.1 20191121 (Red Hat 8.3.1-5), clang version 9.0.1 (Red Hat 9.0.1-2.module_el8.2.0+309+0c7b6b03)
21 clearlinux:latest : Ok gcc (Clear Linux OS for Intel Architecture) 10.2.1 20200812 releases/gcc-10.2.0-102-gc99b2c529b, clang version 10.0.1
22 debian:8 : Ok gcc (Debian 4.9.2-10+deb8u2) 4.9.2, Debian clang version 3.5.0-10 (tags/RELEASE_350/final) (based on LLVM 3.5.0)
23 debian:9 : Ok gcc (Debian 6.3.0-18+deb9u1) 6.3.0 20170516, clang version 3.8.1-24 (tags/RELEASE_381/final)
24 debian:10 : Ok gcc (Debian 8.3.0-6) 8.3.0, clang version 7.0.1-8 (tags/RELEASE_701/final)
25 debian:experimental : Ok gcc (Debian 10.2.0-5) 10.2.0, Debian clang version 11.0.0-+rc2-4
26 debian:experimental-x-arm64 : Ok aarch64-linux-gnu-gcc (Debian 10.2.0-3) 10.2.0
27 debian:experimental-x-mips64 : Ok mips64-linux-gnuabi64-gcc (Debian 9.3.0-8) 9.3.0
28 debian:experimental-x-mipsel : Ok mipsel-linux-gnu-gcc (Debian 9.3.0-8) 9.3.0
29 fedora:20 : Ok gcc (GCC) 4.8.3 20140911 (Red Hat 4.8.3-7)
30 fedora:22 : Ok gcc (GCC) 5.3.1 20160406 (Red Hat 5.3.1-6), clang version 3.5.0 (tags/RELEASE_350/final)
31 fedora:23 : Ok gcc (GCC) 5.3.1 20160406 (Red Hat 5.3.1-6), clang version 3.7.0 (tags/RELEASE_370/final)
32 fedora:24 : Ok gcc (GCC) 6.3.1 20161221 (Red Hat 6.3.1-1), clang version 3.8.1 (tags/RELEASE_381/final)
33 fedora:24-x-ARC-uClibc : Ok arc-linux-gcc (ARCompact ISA Linux uClibc toolchain 2017.09-rc2) 7.1.1 20170710
34 fedora:25 : Ok gcc (GCC) 6.4.1 20170727 (Red Hat 6.4.1-1), clang version 3.9.1 (tags/RELEASE_391/final)
35 fedora:26 : Ok gcc (GCC) 7.3.1 20180130 (Red Hat 7.3.1-2), clang version 4.0.1 (tags/RELEASE_401/final)
36 fedora:27 : Ok gcc (GCC) 7.3.1 20180712 (Red Hat 7.3.1-6), clang version 5.0.2 (tags/RELEASE_502/final)
37 fedora:28 : Ok gcc (GCC) 8.3.1 20190223 (Red Hat 8.3.1-2), clang version 6.0.1 (tags/RELEASE_601/final)
38 fedora:29 : Ok gcc (GCC) 8.3.1 20190223 (Red Hat 8.3.1-2), clang version 7.0.1 (Fedora 7.0.1-6.fc29)
39 fedora:30 : Ok gcc (GCC) 9.3.1 20200408 (Red Hat 9.3.1-2), clang version 8.0.0 (Fedora 8.0.0-3.fc30)
40 fedora:30-x-ARC-glibc : Ok arc-linux-gcc (ARC HS GNU/Linux glibc toolchain 2019.03-rc1) 8.3.1 20190225
41 fedora:30-x-ARC-uClibc : Ok arc-linux-gcc (ARCv2 ISA Linux uClibc toolchain 2019.03-rc1) 8.3.1 20190225
42 fedora:31 : Ok gcc (GCC) 9.3.1 20200408 (Red Hat 9.3.1-2), clang version 9.0.1 (Fedora 9.0.1-2.fc31)
43 fedora:32 : Ok gcc (GCC) 10.2.1 20200723 (Red Hat 10.2.1-1), clang version 10.0.0 (Fedora 10.0.0-2.fc32)
44 fedora:rawhide : FAIL gcc (GCC) 10.2.1 20200804 (Red Hat 10.2.1-2), clang version 11.0.0 (Fedora 11.0.0-0.2.rc1.fc33)
util/scripting-engines/trace-event-python.c: In function 'python_start_script':
util/scripting-engines/trace-event-python.c:1595:2: error: 'visibility' attribute ignored [-Werror=attributes]
1595 | PyMODINIT_FUNC (*initfunc)(void);
| ^~~~~~~~~~~~~~
45 gentoo-stage3-amd64:latest : Ok gcc (Gentoo 9.3.0-r1 p3) 9.3.0
46 mageia:5 : Ok gcc (GCC) 4.9.2, clang version 3.5.2 (tags/RELEASE_352/final)
47 mageia:6 : Ok gcc (Mageia 5.5.0-1.mga6) 5.5.0, clang version 3.9.1 (tags/RELEASE_391/final)
48 mageia:7 : Ok gcc (Mageia 8.4.0-1.mga7) 8.4.0, clang version 8.0.0 (Mageia 8.0.0-1.mga7)
49 manjaro:latest : Ok gcc (GCC) 10.2.0, clang version 10.0.1
50 opensuse:15.0 : Ok gcc (SUSE Linux) 7.4.1 20190905 [gcc-7-branch revision 275407], clang version 5.0.1 (tags/RELEASE_501/final 312548)
51 opensuse:15.1 : Ok gcc (SUSE Linux) 7.5.0, clang version 7.0.1 (tags/RELEASE_701/final 349238)
52 opensuse:15.2 : Ok gcc (SUSE Linux) 7.5.0, clang version 9.0.1
53 opensuse:42.3 : Ok gcc (SUSE Linux) 4.8.5, clang version 3.8.0 (tags/RELEASE_380/final 262553)
54 opensuse:tumbleweed : Ok gcc (SUSE Linux) 10.2.1 20200825 [revision c0746a1beb1ba073c7981eb09f55b3d993b32e5c], clang version 10.0.1
55 oraclelinux:6 : Ok gcc (GCC) 4.4.7 20120313 (Red Hat 4.4.7-23.0.1)
56 oraclelinux:7 : Ok gcc (GCC) 4.8.5 20150623 (Red Hat 4.8.5-39.0.5)
57 oraclelinux:8 : Ok gcc (GCC) 8.3.1 20191121 (Red Hat 8.3.1-5.0.3), clang version 9.0.1 (Red Hat 9.0.1-2.0.1.module+el8.2.0+5599+9ed9ef6d)
58 ubuntu:12.04 : Ok gcc (Ubuntu/Linaro 4.6.3-1ubuntu5) 4.6.3, Ubuntu clang version 3.0-6ubuntu3 (tags/RELEASE_30/final) (based on LLVM 3.0)
59 ubuntu:14.04 : Ok gcc (Ubuntu 4.8.4-2ubuntu1~14.04.4) 4.8.4
60 ubuntu:16.04 : Ok gcc (Ubuntu 5.4.0-6ubuntu1~16.04.12) 5.4.0 20160609, clang version 3.8.0-2ubuntu4 (tags/RELEASE_380/final)
61 ubuntu:16.04-x-arm : Ok arm-linux-gnueabihf-gcc (Ubuntu/Linaro 5.4.0-6ubuntu1~16.04.9) 5.4.0 20160609
62 ubuntu:16.04-x-arm64 : Ok aarch64-linux-gnu-gcc (Ubuntu/Linaro 5.4.0-6ubuntu1~16.04.9) 5.4.0 20160609
63 ubuntu:16.04-x-powerpc : Ok powerpc-linux-gnu-gcc (Ubuntu 5.4.0-6ubuntu1~16.04.9) 5.4.0 20160609
64 ubuntu:16.04-x-powerpc64 : Ok powerpc64-linux-gnu-gcc (Ubuntu/IBM 5.4.0-6ubuntu1~16.04.9) 5.4.0 20160609
65 ubuntu:16.04-x-powerpc64el : Ok powerpc64le-linux-gnu-gcc (Ubuntu/IBM 5.4.0-6ubuntu1~16.04.9) 5.4.0 20160609
66 ubuntu:16.04-x-s390 : Ok s390x-linux-gnu-gcc (Ubuntu 5.4.0-6ubuntu1~16.04.9) 5.4.0 20160609
67 ubuntu:18.04 : Ok gcc (Ubuntu 7.5.0-3ubuntu1~18.04) 7.5.0, clang version 6.0.0-1ubuntu2 (tags/RELEASE_600/final)
68 ubuntu:18.04-x-arm : Ok arm-linux-gnueabihf-gcc (Ubuntu/Linaro 7.5.0-3ubuntu1~18.04) 7.5.0
69 ubuntu:18.04-x-arm64 : Ok aarch64-linux-gnu-gcc (Ubuntu/Linaro 7.5.0-3ubuntu1~18.04) 7.5.0
70 ubuntu:18.04-x-m68k : Ok m68k-linux-gnu-gcc (Ubuntu 7.5.0-3ubuntu1~18.04) 7.5.0
71 ubuntu:18.04-x-powerpc : Ok powerpc-linux-gnu-gcc (Ubuntu 7.5.0-3ubuntu1~18.04) 7.5.0
72 ubuntu:18.04-x-powerpc64 : Ok powerpc64-linux-gnu-gcc (Ubuntu 7.5.0-3ubuntu1~18.04) 7.5.0
73 ubuntu:18.04-x-powerpc64el : Ok powerpc64le-linux-gnu-gcc (Ubuntu 7.5.0-3ubuntu1~18.04) 7.5.0
74 ubuntu:18.04-x-riscv64 : Ok riscv64-linux-gnu-gcc (Ubuntu 7.5.0-3ubuntu1~18.04) 7.5.0
75 ubuntu:18.04-x-s390 : Ok s390x-linux-gnu-gcc (Ubuntu 7.5.0-3ubuntu1~18.04) 7.5.0
76 ubuntu:18.04-x-sh4 : Ok sh4-linux-gnu-gcc (Ubuntu 7.5.0-3ubuntu1~18.04) 7.5.0
77 ubuntu:18.04-x-sparc64 : Ok sparc64-linux-gnu-gcc (Ubuntu 7.5.0-3ubuntu1~18.04) 7.5.0
78 ubuntu:19.10 : Ok gcc (Ubuntu 9.2.1-9ubuntu2) 9.2.1 20191008, clang version 8.0.1-3build1 (tags/RELEASE_801/final)
79 ubuntu:20.04 : Ok gcc (Ubuntu 9.3.0-10ubuntu2) 9.3.0, clang version 10.0.0-4ubuntu1
80 ubuntu:20.04-x-powerpc64el : Ok powerpc64le-linux-gnu-gcc (Ubuntu 10-20200411-0ubuntu1) 10.0.1 20200411 (experimental) [master revision bb87d5cc77d:75961caccb7:f883c46b4877f637e0fa5025b4d6b5c9040ec566]
$
# uname -a
Linux five 5.9.0-rc3 #1 SMP Mon Aug 31 08:38:27 -03 2020 x86_64 x86_64 x86_64 GNU/Linux
# git log --oneline -1
830fadfd95 perf tools: Add bpf image check to __map__is_kmodule
# perf version --build-options
perf version 5.9.rc3.ge28f0104343d
dwarf: [ on ] # HAVE_DWARF_SUPPORT
dwarf_getlocations: [ on ] # HAVE_DWARF_GETLOCATIONS_SUPPORT
glibc: [ on ] # HAVE_GLIBC_SUPPORT
gtk2: [ on ] # HAVE_GTK2_SUPPORT
syscall_table: [ on ] # HAVE_SYSCALL_TABLE_SUPPORT
libbfd: [ on ] # HAVE_LIBBFD_SUPPORT
libelf: [ on ] # HAVE_LIBELF_SUPPORT
libnuma: [ on ] # HAVE_LIBNUMA_SUPPORT
numa_num_possible_cpus: [ on ] # HAVE_LIBNUMA_SUPPORT
libperl: [ on ] # HAVE_LIBPERL_SUPPORT
libpython: [ on ] # HAVE_LIBPYTHON_SUPPORT
libslang: [ on ] # HAVE_SLANG_SUPPORT
libcrypto: [ on ] # HAVE_LIBCRYPTO_SUPPORT
libunwind: [ on ] # HAVE_LIBUNWIND_SUPPORT
libdw-dwarf-unwind: [ on ] # HAVE_DWARF_SUPPORT
zlib: [ on ] # HAVE_ZLIB_SUPPORT
lzma: [ on ] # HAVE_LZMA_SUPPORT
get_cpuid: [ on ] # HAVE_AUXTRACE_SUPPORT
bpf: [ on ] # HAVE_LIBBPF_SUPPORT
aio: [ on ] # HAVE_AIO_SUPPORT
zstd: [ on ] # HAVE_ZSTD_SUPPORT
# perf test
1: vmlinux symtab matches kallsyms : Ok
2: Detect openat syscall event : Ok
3: Detect openat syscall event on all cpus : Ok
4: Read samples using the mmap interface : Ok
5: Test data source output : Ok
6: Parse event definition strings : Ok
7: Simple expression parser : Ok
8: PERF_RECORD_* events & perf_sample fields : Ok
9: Parse perf pmu format : Ok
10: PMU events :
10.1: PMU event table sanity : Ok
10.2: PMU event map aliases : Ok
10.3: Parsing of PMU event table metrics : Ok
10.4: Parsing of PMU event table metrics with fake PMUs : Ok
11: DSO data read : Ok
12: DSO data cache : Ok
13: DSO data reopen : Ok
14: Roundtrip evsel->name : Ok
15: Parse sched tracepoints fields : Ok
16: syscalls:sys_enter_openat event fields : Ok
17: Setup struct perf_event_attr : Ok
18: Match and link multiple hists : Ok
19: 'import perf' in python : Ok
20: Breakpoint overflow signal handler : Ok
21: Breakpoint overflow sampling : Ok
22: Breakpoint accounting : Ok
23: Watchpoint :
23.1: Read Only Watchpoint : Skip
23.2: Write Only Watchpoint : Ok
23.3: Read / Write Watchpoint : Ok
23.4: Modify Watchpoint : Ok
24: Number of exit events of a simple workload : Ok
25: Software clock events period values : Ok
26: Object code reading : Ok
27: Sample parsing : Ok
28: Use a dummy software event to keep tracking : Ok
29: Parse with no sample_id_all bit set : Ok
30: Filter hist entries : Ok
31: Lookup mmap thread : Ok
32: Share thread maps : Ok
33: Sort output of hist entries : Ok
34: Cumulate child hist entries : Ok
35: Track with sched_switch : Ok
36: Filter fds with revents mask in a fdarray : Ok
37: Add fd to a fdarray, making it autogrow : Ok
38: kmod_path__parse : Ok
39: Thread map : Ok
40: LLVM search and compile :
40.1: Basic BPF llvm compile : Ok
40.2: kbuild searching : Ok
40.3: Compile source for BPF prologue generation : Ok
40.4: Compile source for BPF relocation : Ok
41: Session topology : Ok
42: BPF filter :
42.1: Basic BPF filtering : Ok
42.2: BPF pinning : Ok
42.3: BPF prologue generation : Ok
42.4: BPF relocation checker : Ok
43: Synthesize thread map : Ok
44: Remove thread map : Ok
45: Synthesize cpu map : Ok
46: Synthesize stat config : Ok
47: Synthesize stat : Ok
48: Synthesize stat round : Ok
49: Synthesize attr update : Ok
50: Event times : Ok
51: Read backward ring buffer : Ok
52: Print cpu map : Ok
53: Merge cpu map : Ok
54: Probe SDT events : Ok
55: is_printable_array : Ok
56: Print bitmap : Ok
57: perf hooks : Ok
58: builtin clang support : Skip (not compiled in)
59: unit_number__scnprintf : Ok
60: mem2node : Ok
61: time utils : Ok
62: Test jit_write_elf : Ok
63: Test libpfm4 support : Skip (not compiled in)
64: Test api io : Ok
65: maps__merge_in : Ok
66: Demangle Java : Ok
67: Parse and process metrics : Ok
68: x86 rdpmc : Ok
69: Convert perf time to TSC : Ok
70: DWARF unwind : Ok
71: x86 instruction decoder - new instructions : Ok
72: Intel PT packet decoder : Ok
73: x86 bp modify : Ok
74: probe libc's inet_pton & backtrace it with ping : Ok
75: Use vfs_getname probe to get syscall args filenames : Ok
76: Check open filename arg using perf trace + vfs_getname: Ok
77: Zstd perf.data compression/decompression : Ok
78: Add vfs_getname probe to get syscall args filenames : Ok
#
$ cd ~acme/git/perf ; git log --oneline -1 ; make -C tools/perf build-test
830fadfd95 (HEAD -> perf/urgent, five/perf/urgent) perf tools: Add bpf image check to __map__is_kmodule
make: Entering directory '/home/acme/git/perf/tools/perf'
- tarpkg: ./tests/perf-targz-src-pkg .
make_no_libaudit_O: make NO_LIBAUDIT=1
make_no_scripts_O: make NO_LIBPYTHON=1 NO_LIBPERL=1
make_help_O: make help
make_tags_O: make tags
make_no_libbpf_O: make NO_LIBBPF=1
make_no_backtrace_O: make NO_BACKTRACE=1
make_install_prefix_slash_O: make install prefix=/tmp/krava/
make_no_libbpf_DEBUG_O: make NO_LIBBPF=1 DEBUG=1
make_no_auxtrace_O: make NO_AUXTRACE=1
make_no_libunwind_O: make NO_LIBUNWIND=1
make_util_pmu_bison_o_O: make util/pmu-bison.o
make_with_babeltrace_O: make LIBBABELTRACE=1
make_no_libcrypto_O: make NO_LIBCRYPTO=1
make_no_newt_O: make NO_NEWT=1
make_no_libpython_O: make NO_LIBPYTHON=1
make_with_clangllvm_O: make LIBCLANGLLVM=1
make_doc_O: make doc
make_debug_O: make DEBUG=1
make_no_libnuma_O: make NO_LIBNUMA=1
make_minimal_O: make NO_LIBPERL=1 NO_LIBPYTHON=1 NO_NEWT=1 NO_GTK2=1 NO_DEMANGLE=1 NO_LIBELF=1 NO_LIBUNWIND=1 NO_BACKTRACE=1 NO_LIBNUMA=1 NO_LIBAUDIT=1 NO_LIBBIONIC=1 NO_LIBDW_DWARF_UNWIND=1 NO_AUXTRACE=1 NO_LIBBPF=1 NO_LIBCRYPTO=1 NO_SDT=1 NO_JVMTI=1 NO_LIBZSTD=1 NO_LIBCAP=1 NO_SYSCALL_TABLE=1
make_static_O: make LDFLAGS=-static NO_PERF_READ_VDSO32=1 NO_PERF_READ_VDSOX32=1 NO_JVMTI=1
make_no_libperl_O: make NO_LIBPERL=1
make_no_libdw_dwarf_unwind_O: make NO_LIBDW_DWARF_UNWIND=1
make_cscope_O: make cscope
make_install_prefix_O: make install prefix=/tmp/krava
make_no_demangle_O: make NO_DEMANGLE=1
make_pure_O: make
make_no_ui_O: make NO_NEWT=1 NO_SLANG=1 NO_GTK2=1
make_clean_all_O: make clean all
make_no_libbionic_O: make NO_LIBBIONIC=1
make_no_syscall_tbl_O: make NO_SYSCALL_TABLE=1
make_no_slang_O: make NO_SLANG=1
make_install_bin_O: make install-bin
make_install_O: make install
make_no_libelf_O: make NO_LIBELF=1
make_util_map_o_O: make util/map.o
make_perf_o_O: make perf.o
make_with_libpfm4_O: make LIBPFM4=1
make_no_gtk2_O: make NO_GTK2=1
make_no_sdt_O: make NO_SDT=1
OK
make: Leaving directory '/home/acme/git/perf/tools/perf'
$
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Merge tag 'perf-tools-fixes-for-v5.9-2020-09-03' of git://git.kernel.org/pub/scm/linux/kernel/git/acme/linux
Pull more perf tools fixes from Arnaldo Carvalho de Melo:
- Use uintptr_t when casting numbers to pointers
- Keep output expected by 3rd parties: Turn off summary for interval
mode by default.
- BPF is in kernel space, make sure do_validate_kcore_modules() knows
about that.
- Explicitly call out event modifiers in the documentation.
- Fix jevents() allocation of space for regular expressions.
- Address libtraceevent build warnings on 32-bit arches.
- Fix checking of functions returns using ERR_PTR() in 'perf bench'.
* tag 'perf-tools-fixes-for-v5.9-2020-09-03' of git://git.kernel.org/pub/scm/linux/kernel/git/acme/linux:
perf tools: Add bpf image check to __map__is_kmodule
perf record/stat: Explicitly call out event modifiers in the documentation
perf bench: The do_run_multi_threaded() function must use IS_ERR(perf_session__new())
perf stat: Turn off summary for interval mode by default
libtraceevent: Fix build warning on 32-bit arches
perf jevents: Fix suspicious code in fixregex()
perf parse-events: Use uintptr_t when casting numbers to pointers
Pull networking fixes from David Miller:
1) Use netif_rx_ni() when necessary in batman-adv stack, from Jussi
Kivilinna.
2) Fix loss of RTT samples in rxrpc, from David Howells.
3) Memory leak in hns_nic_dev_probe(), from Dignhao Liu.
4) ravb module cannot be unloaded, fix from Yuusuke Ashizuka.
5) We disable BH for too lokng in sctp_get_port_local(), add a
cond_resched() here as well, from Xin Long.
6) Fix memory leak in st95hf_in_send_cmd, from Dinghao Liu.
7) Out of bound access in bpf_raw_tp_link_fill_link_info(), from
Yonghong Song.
8) Missing of_node_put() in mt7530 DSA driver, from Sumera
Priyadarsini.
9) Fix crash in bnxt_fw_reset_task(), from Michael Chan.
10) Fix geneve tunnel checksumming bug in hns3, from Yi Li.
11) Memory leak in rxkad_verify_response, from Dinghao Liu.
12) In tipc, don't use smp_processor_id() in preemptible context. From
Tuong Lien.
13) Fix signedness issue in mlx4 memory allocation, from Shung-Hsi Yu.
14) Missing clk_disable_prepare() in gemini driver, from Dan Carpenter.
15) Fix ABI mismatch between driver and firmware in nfp, from Louis
Peens.
* git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net: (110 commits)
net/smc: fix sock refcounting in case of termination
net/smc: reset sndbuf_desc if freed
net/smc: set rx_off for SMCR explicitly
net/smc: fix toleration of fake add_link messages
tg3: Fix soft lockup when tg3_reset_task() fails.
doc: net: dsa: Fix typo in config code sample
net: dp83867: Fix WoL SecureOn password
nfp: flower: fix ABI mismatch between driver and firmware
tipc: fix shutdown() of connectionless socket
ipv6: Fix sysctl max for fib_multipath_hash_policy
drivers/net/wan/hdlc: Change the default of hard_header_len to 0
net: gemini: Fix another missing clk_disable_unprepare() in probe
net: bcmgenet: fix mask check in bcmgenet_validate_flow()
amd-xgbe: Add support for new port mode
net: usb: dm9601: Add USB ID of Keenetic Plus DSL
vhost: fix typo in error message
net: ethernet: mlx4: Fix memory allocation in mlx4_buddy_init()
pktgen: fix error message with wrong function name
net: ethernet: ti: am65-cpsw: fix rmii 100Mbit link mode
cxgb4: fix thermal zone device registration
...
Merge gate page refcount fix from Dave Hansen:
"During the conversion over to pin_user_pages(), gate pages were missed.
The fix is pretty simple, and is accompanied by a new test from Andy
which probably would have caught this earlier"
* emailed patches from Dave Hansen <dave.hansen@linux.intel.com>:
selftests/x86/test_vsyscall: Improve the process_vm_readv() test
mm: fix pin vs. gup mismatch with gate pages
The existing code accepted process_vm_readv() success or failure as long
as it didn't return garbage. This is too weak: if the vsyscall page is
readable, then process_vm_readv() should succeed and, if the page is not
readable, then it should fail.
Signed-off-by: Andy Lutomirski <luto@kernel.org>
Signed-off-by: Dave Hansen <dave.hansen@linux.intel.com>
Cc: x86@kernel.org
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Andy Lutomirski <luto@kernel.org>
Cc: Jann Horn <jannh@google.com>
Cc: John Hubbard <jhubbard@nvidia.com>
Cc: Andrew Morton <akpm@linux-foundation.org>
Cc: Kirill A. Shutemov <kirill.shutemov@linux.intel.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Gate pages were missed when converting from get to pin_user_pages().
This can lead to refcount imbalances. This is reliably and quickly
reproducible running the x86 selftests when vsyscall=emulate is enabled
(the default). Fix by using try_grab_page() with appropriate flags
passed.
The long story:
Today, pin_user_pages() and get_user_pages() are similar interfaces for
manipulating page reference counts. However, "pins" use a "bias" value
and manipulate the actual reference count by 1024 instead of 1 used by
plain "gets".
That means that pin_user_pages() must be matched with unpin_user_pages()
and can't be mixed with a plain put_user_pages() or put_page().
Enter gate pages, like the vsyscall page. They are pages usually in the
kernel image, but which are mapped to userspace. Userspace is allowed
access to them, including interfaces using get/pin_user_pages(). The
refcount of these kernel pages is manipulated just like a normal user
page on the get/pin side so that the put/unpin side can work the same
for normal user pages or gate pages.
get_gate_page() uses try_get_page() which only bumps the refcount by
1, not 1024, even if called in the pin_user_pages() path. If someone
pins a gate page, this happens:
pin_user_pages()
get_gate_page()
try_get_page() // bump refcount +1
... some time later
unpin_user_pages()
page_ref_sub_and_test(page, 1024))
... and boom, we get a refcount off by 1023. This is reliably and
quickly reproducible running the x86 selftests when booted with
vsyscall=emulate (the default). The selftests use ptrace(), but I
suspect anything using pin_user_pages() on gate pages could hit this.
To fix it, simply use try_grab_page() instead of try_get_page(), and
pass 'gup_flags' in so that FOLL_PIN can be respected.
This bug traces back to the very beginning of the FOLL_PIN support in
commit 3faa52c03f ("mm/gup: track FOLL_PIN pages"), which showed up in
the 5.7 release.
Signed-off-by: Dave Hansen <dave.hansen@linux.intel.com>
Fixes: 3faa52c03f ("mm/gup: track FOLL_PIN pages")
Reported-by: Peter Zijlstra <peterz@infradead.org>
Reviewed-by: John Hubbard <jhubbard@nvidia.com>
Acked-by: Andy Lutomirski <luto@kernel.org>
Cc: x86@kernel.org
Cc: Jann Horn <jannh@google.com>
Cc: Andrew Morton <akpm@linux-foundation.org>
Cc: Kirill A. Shutemov <kirill.shutemov@linux.intel.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
A couple of minor fixes to the display changes that went in for 5.9.
The most important of which is a workaround for a HW bug that was
exposed by better push buffer space management, leading to
random(ish...) display engine hangs.
Signed-off-by: Dave Airlie <airlied@redhat.com>
From: Ben Skeggs <skeggsb@gmail.com>
Link: https://patchwork.freedesktop.org/patch/msgid/ <CACAvsv5QDxyMihrxbPk+-sORnaYtjR6_dbM68gEhb2wxht_G1w@mail.gmail.com
Linus Walleij
Jonathan Neuschäfer
Wang Hai
Lukas Bulwahn
Jakub Kicinski
Florian Fainelli
Edward Cree
Linus Torvalds
Or Cohen
Rafael J. Wysocki
Peter Xu
Leon Romanovsky
Barret Rhoden
Dmitry Osipenko
Veera Vegivada
Tony Lindgren
Andy Lutomirski
Dave Hansen
Dave Airlie