Every remaining user just has the error case returning -EFAULT.
In fact, the exception was __get_user_asm_nozero(), which was removed in
commit 4b842e4e25 ("x86: get rid of small constant size cases in
raw_copy_{to,from}_user()"), and the other __get_user_xyz() macros just
followed suit for consistency.
Fix up some macro whitespace while at it.
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
The last user was removed by commit 4b842e4e25 ("x86: get rid of small
constant size cases in raw_copy_{to,from}_user()"). Get rid of the
left-overs before somebody tries to use it again.
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Pull networking updates from David Miller:
"Highlights:
1) Fix the iwlwifi regression, from Johannes Berg.
2) Support BSS coloring and 802.11 encapsulation offloading in
hardware, from John Crispin.
3) Fix some potential Spectre issues in qtnfmac, from Sergey
Matyukevich.
4) Add TTL decrement action to openvswitch, from Matteo Croce.
5) Allow paralleization through flow_action setup by not taking the
RTNL mutex, from Vlad Buslov.
6) A lot of zero-length array to flexible-array conversions, from
Gustavo A. R. Silva.
7) Align XDP statistics names across several drivers for consistency,
from Lorenzo Bianconi.
8) Add various pieces of infrastructure for offloading conntrack, and
make use of it in mlx5 driver, from Paul Blakey.
9) Allow using listening sockets in BPF sockmap, from Jakub Sitnicki.
10) Lots of parallelization improvements during configuration changes
in mlxsw driver, from Ido Schimmel.
11) Add support to devlink for generic packet traps, which report
packets dropped during ACL processing. And use them in mlxsw
driver. From Jiri Pirko.
12) Support bcmgenet on ACPI, from Jeremy Linton.
13) Make BPF compatible with RT, from Thomas Gleixnet, Alexei
Starovoitov, and your's truly.
14) Support XDP meta-data in virtio_net, from Yuya Kusakabe.
15) Fix sysfs permissions when network devices change namespaces, from
Christian Brauner.
16) Add a flags element to ethtool_ops so that drivers can more simply
indicate which coalescing parameters they actually support, and
therefore the generic layer can validate the user's ethtool
request. Use this in all drivers, from Jakub Kicinski.
17) Offload FIFO qdisc in mlxsw, from Petr Machata.
18) Support UDP sockets in sockmap, from Lorenz Bauer.
19) Fix stretch ACK bugs in several TCP congestion control modules,
from Pengcheng Yang.
20) Support virtual functiosn in octeontx2 driver, from Tomasz
Duszynski.
21) Add region operations for devlink and use it in ice driver to dump
NVM contents, from Jacob Keller.
22) Add support for hw offload of MACSEC, from Antoine Tenart.
23) Add support for BPF programs that can be attached to LSM hooks,
from KP Singh.
24) Support for multiple paths, path managers, and counters in MPTCP.
From Peter Krystad, Paolo Abeni, Florian Westphal, Davide Caratti,
and others.
25) More progress on adding the netlink interface to ethtool, from
Michal Kubecek"
* git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net-next: (2121 commits)
net: ipv6: rpl_iptunnel: Fix potential memory leak in rpl_do_srh_inline
cxgb4/chcr: nic-tls stats in ethtool
net: dsa: fix oops while probing Marvell DSA switches
net/bpfilter: remove superfluous testing message
net: macb: Fix handling of fixed-link node
net: dsa: ksz: Select KSZ protocol tag
netdevsim: dev: Fix memory leak in nsim_dev_take_snapshot_write
net: stmmac: add EHL 2.5Gbps PCI info and PCI ID
net: stmmac: add EHL PSE0 & PSE1 1Gbps PCI info and PCI ID
net: stmmac: create dwmac-intel.c to contain all Intel platform
net: dsa: bcm_sf2: Support specifying VLAN tag egress rule
net: dsa: bcm_sf2: Add support for matching VLAN TCI
net: dsa: bcm_sf2: Move writing of CFP_DATA(5) into slicing functions
net: dsa: bcm_sf2: Check earlier for FLOW_EXT and FLOW_MAC_EXT
net: dsa: bcm_sf2: Disable learning for ASP port
net: dsa: b53: Deny enslaving port 7 for 7278 into a bridge
net: dsa: b53: Prevent tagged VLAN on port 7 for 7278
net: dsa: b53: Restore VLAN entries upon (re)configuration
net: dsa: bcm_sf2: Fix overflow checks
hv_netvsc: Remove unnecessary round_up for recv_completion_cnt
...
hardware, and a DMA address issue with ntb_perf. Also, large series of
AMD NTB patches.
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Merge tag 'ntb-5.7' of git://github.com/jonmason/ntb
Pull NTB updates from Jon Mason:
"Bug fixes for a few printing issues, link status detection bug on AMD
hardware, and a DMA address issue with ntb_perf.
Also, large series of AMD NTB patches"
* tag 'ntb-5.7' of git://github.com/jonmason/ntb: (21 commits)
NTB: add pci shutdown handler for AMD NTB
NTB: send DB event when driver is loaded or un-loaded
NTB: remove redundant setting of DB valid mask
NTB: return link up status correctly for PRI and SEC
NTB: add helper functions to set and clear sideinfo
NTB: move ntb_ctrl handling to init and deinit
NTB: handle link up, D0 and D3 events correctly
NTB: handle link down event correctly
NTB: remove handling of peer_sta from amd_link_is_up
NTB: set peer_sta within event handler itself
NTB: return the side info status from amd_poll_link
NTB: define a new function to get link status
NTB: Enable link up and down event notification
NTB: clear interrupt status register
NTB: Fix access to link status and control register
MAINTAINERS: update maintainer list for AMD NTB driver
NTB: ntb_transport: Use scnprintf() for avoiding potential buffer overflow
ntb_hw_switchtec: Fix ntb_mw_clear_trans error if size == 0
ntb_tool: Fix printk format
NTB: ntb_perf: Fix address err in perf_copy_chunk
...
* Fix for improper handling of fan_boost_mode in sysfs for ASUS laptops.
* On newer ASUS laptops the 1st battery is named differently, here is a fix.
* Fix Lex 2I385SW to allow both network cards to be used.
* The power integrated circuit driver for Surface 3 has been added.
* Refactor and clean up of Intel PMC driver and enable it on Intel Jasper Lake.
* Clean up of Dell RBU driver.
* Big update for Intel Speed Select technology support tool and driver.
The following is an automated git shortlog grouped by driver:
asus-wmi:
- Support laptops where the first battery is named BATT
- Fix return value of fan_boost_mode_store
dell_rbu:
- Unify format of the printed messages
- Use max_t() to get rid of casting
- Simplify cleanup code in create_packet()
- don't open code list_for_each_entry*()
- Use sysfs_create_group() API
GPD pocket fan:
- Fix error message when temp-limits are out of range
i2c-multi-instantiate:
- Replace zero-length array with flexible-array member
intel-hid:
- Move MODULE_DEVICE_TABLE() closer to the table
intel_pmc_core:
- Make pmc_core_substate_res_show() generic
- Make pmc_core_lpm_display() generic for platforms that support sub-states
- Add slp_s0_offset attribute back to tgl_reg_map
- Remove duplicate 'if' to create debugfs entry
- Relocate pmc_core_*_display() to outside of CONFIG_DEBUG_FS
- Add debugfs support to access live status registers
- Dump low power status registers on an S0ix.y failure
- Add an additional parameter to pmc_core_lpm_display()
- Remove slp_s0 attributes from tgl_reg_map
- Refactor the driver by removing redundant code
- Add debugfs entry for low power mode status registers
- Add debugfs entry to access sub-state residencies
- Add Atom based Jasper Lake (JSL) platform support
intel-vbtn:
- Move MODULE_DEVICE_TABLE() closer to the table
ISST:
- Fix wrong unregister type
PDx86:
- Kconfig: Fix a typo
- Kconfig: Group modules by companies and functions
- MAINTAINERS: Sort entries in database for PDx86
- Makefile: Group modules by companies and functions
platform/x86/intel-uncore-freq:
- Add release callback
- Fix static checker issue and potential race condition
pmc_atom:
- Add Lex 2I385SW to critclk_systems DMI table
sony-laptop:
- Use scnprintf() for avoiding potential buffer overflow
surface3_power:
- Fix always true condition in mshw0011_space_handler()
- Fix Kconfig section ordering
- Add missed headers
- Reformat GUID assignment
- Drop useless macro ACPI_PTR()
- Prefix POLL_INTERVAL with SURFACE_3
- Simplify mshw0011_adp_psr() to one liner
- Use dev_err() instead of pr_err()
- Drop unused structure definition
- MSHW0011 rev-eng implementation
tools/power/x86/intel-speed-select:
- Fix a typo in error message
- Update version
- Avoid duplicate Package strings for json
- Add display for enabled cpus count
- Print friendly warning for bad command line
- Fix avx options for turbo-freq feature
- Improve CLX commands
- Show error for invalid CPUs in the options
- Improve core-power result and error display
- Kernel interface error handling
- Improve error display for turbo-freq feature
- Improve error display for base-freq feature
- Improve output of perf-profile commands
- Enhance help for core-power assoc
- Display error for invalid priority type
- Check feature status first
- Improve error display for perf-profile feature
- Add an API for error/information print
- Enhance --info option
- Enhance help
- Helpful warning for missing kernel interface
- Store topology information
- Max CPU count calculation when CPU0 is offline
- Special handling for CPU 0 online/offline
- Use more verbiage for clos information
- Enhance core-power info command
- Make target CPU optional for core-power info
- Warn for invalid package id
- Fix last cpu number
- Fix mailbox usage for CLOS_PM_QOS_CONFIG
- Avoid duplicate names for json parsing
- Fix display for turbo-freq auto mode
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Merge tag 'platform-drivers-x86-v5.7-1' of git://git.infradead.org/linux-platform-drivers-x86
Pull x86 platform driver updates from Andy Shevchenko:
- Fix for improper handling of fan_boost_mode in sysfs for ASUS
laptops.
- On newer ASUS laptops the 1st battery is named differently, here is a
fix.
- Fix Lex 2I385SW to allow both network cards to be used.
- The power integrated circuit driver for Surface 3 has been added.
- Refactor and clean up of Intel PMC driver and enable it on Intel
Jasper Lake.
- Clean up of Dell RBU driver.
- Big update for Intel Speed Select technology support tool and driver.
* tag 'platform-drivers-x86-v5.7-1' of git://git.infradead.org/linux-platform-drivers-x86: (75 commits)
platform/x86: surface3_power: Fix always true condition in mshw0011_space_handler()
platform/x86: surface3_power: Fix Kconfig section ordering
platform/x86: surface3_power: Add missed headers
platform/x86: surface3_power: Reformat GUID assignment
platform/x86: surface3_power: Drop useless macro ACPI_PTR()
platform/x86: surface3_power: Prefix POLL_INTERVAL with SURFACE_3
platform/x86: surface3_power: Simplify mshw0011_adp_psr() to one liner
platform/x86: surface3_power: Use dev_err() instead of pr_err()
platform/x86: surface3_power: Drop unused structure definition
platform/x86: surface3_power: MSHW0011 rev-eng implementation
platform/x86: intel_pmc_core: Make pmc_core_substate_res_show() generic
platform/x86: intel_pmc_core: Make pmc_core_lpm_display() generic for platforms that support sub-states
tools/power/x86/intel-speed-select: Fix a typo in error message
tools/power/x86/intel-speed-select: Update version
tools/power/x86/intel-speed-select: Avoid duplicate Package strings for json
tools/power/x86/intel-speed-select: Add display for enabled cpus count
tools/power/x86/intel-speed-select: Print friendly warning for bad command line
tools/power/x86/intel-speed-select: Fix avx options for turbo-freq feature
tools/power/x86/intel-speed-select: Improve CLX commands
tools/power/x86/intel-speed-select: Show error for invalid CPUs in the options
...
Here is the big set of TTY / Serial patches for 5.7-rc1
Lots of console fixups and reworking in here, serial core tweaks
(doesn't that ever get old, why are we still creating new serial
devices?), serial driver updates, line-protocol driver updates, and some
vt cleanups and fixes included in here as well.
All have been in linux-next with no reported issues.
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Merge tag 'tty-5.7-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/tty
Pull tty/serial updates from Greg KH:
"Here is the big set of TTY / Serial patches for 5.7-rc1
Lots of console fixups and reworking in here, serial core tweaks
(doesn't that ever get old, why are we still creating new serial
devices?), serial driver updates, line-protocol driver updates, and
some vt cleanups and fixes included in here as well.
All have been in linux-next with no reported issues"
* tag 'tty-5.7-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/tty: (161 commits)
serial: 8250: Optimize irq enable after console write
serial: 8250: Fix rs485 delay after console write
vt: vt_ioctl: fix use-after-free in vt_in_use()
vt: vt_ioctl: fix VT_DISALLOCATE freeing in-use virtual console
tty: serial: make SERIAL_SPRD depend on COMMON_CLK
tty: serial: fsl_lpuart: fix return value checking
tty: serial: fsl_lpuart: move dma_request_chan()
ARM: dts: tango4: Make /serial compatible with ns16550a
ARM: dts: mmp*: Make the serial ports compatible with xscale-uart
ARM: dts: mmp*: Fix serial port names
ARM: dts: mmp2-brownstone: Don't redeclare phandle references
ARM: dts: pxa*: Make the serial ports compatible with xscale-uart
ARM: dts: pxa*: Fix serial port names
ARM: dts: pxa*: Don't redeclare phandle references
serial: omap: drop unused dt-bindings header
serial: 8250: 8250_omap: Add DMA support for UARTs on K3 SoCs
serial: 8250: 8250_omap: Work around errata causing spurious IRQs with DMA
serial: 8250: 8250_omap: Extend driver data to pass FIFO trigger info
serial: 8250: 8250_omap: Move locking out from __dma_rx_do_complete()
serial: 8250: 8250_omap: Account for data in flight during DMA teardown
...
- Add support for host software queue for (e)MMC/SD
- Throttle polling rate for CMD6
- Update CMD13 busy condition check for CMD6 commands
- Improve busy detect polling for erase/trim/discard/HPI
- Fixup support for HW busy detection for HPI commands
- Re-work and improve support for eMMC sanitize commands
MMC host:
- mmci: Add support for sdmmc variant revision 2.0
- mmci_sdmmc: Improve support for busyend detection
- mmci_sdmmc: Fixup support for signal voltage switch
- mmci_sdmmc: Add support for tuning with delay block
- mtk-sd: Fix another SDIO irq issue
- sdhci: Disable native card detect when GPIO based type exist
- sdhci: Add option to defer request completion
- sdhci_am654: Add support to set a tap value per speed mode
- sdhci-esdhc-imx: Add support for i.MX8MM based variant
- sdhci-esdhc-imx: Fixup support for standard tuning on i.MX8 usdhc
- sdhci-esdhc-imx: Optimize for strobe/clock dll settings
- sdhci-esdhc-imx: Fixup support for system and runtime suspend/resume
- sdhci-iproc: Update regulator/bus-voltage management for bcm2711
- sdhci-msm: Prevent clock gating with PWRSAVE_DLL on broken variants
- sdhci-msm: Fix management of CQE during SDHCI reset
- sdhci-of-arasan: Add support for auto tuning on ZynqMP based platforms
- sdhci-omap: Add support for system suspend/resume
- sdhci-sprd: Add support for HW busy detection
- sdhci-sprd: Enable support host software queue
- sdhci-tegra: Add support for HW busy detection
- tmio/renesas_sdhi: Enforce retune after runtime suspend
- renesas_sdhi: Use manual tap correction for HS400 on some variants
- renesas_sdhi: Add support for manual correction of tap values for tunings
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Merge tag 'mmc-v5.7' of git://git.kernel.org/pub/scm/linux/kernel/git/ulfh/mmc
Pull MMC updates from Ulf Hansson:
"MMC core:
- Add support for host software queue for (e)MMC/SD
- Throttle polling rate for CMD6
- Update CMD13 busy condition check for CMD6 commands
- Improve busy detect polling for erase/trim/discard/HPI
- Fixup support for HW busy detection for HPI commands
- Re-work and improve support for eMMC sanitize commands
MMC host:
- mmci:
* Add support for sdmmc variant revision 2.0
- mmci_sdmmc:
* Improve support for busyend detection
* Fixup support for signal voltage switch
* Add support for tuning with delay block
- mtk-sd:
* Fix another SDIO irq issue
- sdhci:
* Disable native card detect when GPIO based type exist
- sdhci:
* Add option to defer request completion
- sdhci_am654:
* Add support to set a tap value per speed mode
- sdhci-esdhc-imx:
* Add support for i.MX8MM based variant
* Fixup support for standard tuning on i.MX8 usdhc
* Optimize for strobe/clock dll settings
* Fixup support for system and runtime suspend/resume
- sdhci-iproc:
* Update regulator/bus-voltage management for bcm2711
- sdhci-msm:
* Prevent clock gating with PWRSAVE_DLL on broken variants
* Fix management of CQE during SDHCI reset
- sdhci-of-arasan:
* Add support for auto tuning on ZynqMP based platforms
- sdhci-omap:
* Add support for system suspend/resume
- sdhci-sprd:
* Add support for HW busy detection
* Enable support host software queue
- sdhci-tegra:
* Add support for HW busy detection
- tmio/renesas_sdhi:
* Enforce retune after runtime suspend
- renesas_sdhi:
* Use manual tap correction for HS400 on some variants
* Add support for manual correction of tap values for tunings"
* tag 'mmc-v5.7' of git://git.kernel.org/pub/scm/linux/kernel/git/ulfh/mmc: (86 commits)
mmc: cavium-octeon: remove nonsense variable coercion
mmc: mediatek: fix SDIO irq issue
mmc: mmci_sdmmc: Fix clear busyd0end irq flag
dt-bindings: mmc: Fix node name in an example
mmc: core: Re-work the code for eMMC sanitize
mmc: sdhci: use FIELD_GET for preset value bit masks
mmc: sdhci-of-at91: Display clock changes for debug purpose only
mmc: sdhci: iproc: Add custom set_power() callback for bcm2711
mmc: sdhci: am654: Use sdhci_set_power_and_voltage()
mmc: sdhci: at91: Use sdhci_set_power_and_voltage()
mmc: sdhci: milbeaut: Use sdhci_set_power_and_voltage()
mmc: sdhci: arasan: Use sdhci_set_power_and_voltage()
mmc: sdhci: Introduce sdhci_set_power_and_bus_voltage()
mmc: vub300: Use scnprintf() for avoiding potential buffer overflow
dt-bindings: mmc: synopsys-dw-mshc: fix clock-freq-min-max in example
sdhci: tegra: Enable MMC_CAP_WAIT_WHILE_BUSY host capability
sdhci: tegra: Implement Tegra specific set_timeout callback
mmc: sdhci-omap: Add Support for Suspend/Resume
mmc: renesas_sdhi: simplify execute_tuning
mmc: renesas_sdhi: Use BITS_PER_LONG helper
...
[Build system]
- add CONFIG_UNUSED_KSYMS_WHITELIST, which will be useful to define
a fixed set of export symbols for Generic Kernel Image (GKI)
- allow to run 'make dt_binding_check' without .config
- use full schema for checking DT examples in *.yaml files
- make modpost fail for missing MODULE_IMPORT_NS(), which makes more
sense because we know the produced modules are never loadable
- Remove unused 'AS' variable
[Kconfig]
- sanitize DEFCONFIG_LIST, and remove ARCH_DEFCONFIG from Kconfig files
- relax the 'imply' behavior so that symbols implied by y can become m
- make 'imply' obey 'depends on' in order to make 'imply' really weak
[Misc]
- add documentation on building the kernel with Clang/LLVM
- revive __HAVE_ARCH_STRLEN for 32bit sparc to use optimized strlen()
- fix warning from deb-pkg builds when CONFIG_DEBUG_INFO=n
- various script and Makefile cleanups
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Merge tag 'kbuild-v5.7' of git://git.kernel.org/pub/scm/linux/kernel/git/masahiroy/linux-kbuild
Pull Kbuild updates from Masahiro Yamada:
"Build system:
- add CONFIG_UNUSED_KSYMS_WHITELIST, which will be useful to define a
fixed set of export symbols for Generic Kernel Image (GKI)
- allow to run 'make dt_binding_check' without .config
- use full schema for checking DT examples in *.yaml files
- make modpost fail for missing MODULE_IMPORT_NS(), which makes more
sense because we know the produced modules are never loadable
- Remove unused 'AS' variable
Kconfig:
- sanitize DEFCONFIG_LIST, and remove ARCH_DEFCONFIG from Kconfig
files
- relax the 'imply' behavior so that symbols implied by 'y' can
become 'm'
- make 'imply' obey 'depends on' in order to make 'imply' really weak
Misc:
- add documentation on building the kernel with Clang/LLVM
- revive __HAVE_ARCH_STRLEN for 32bit sparc to use optimized strlen()
- fix warning from deb-pkg builds when CONFIG_DEBUG_INFO=n
- various script and Makefile cleanups"
* tag 'kbuild-v5.7' of git://git.kernel.org/pub/scm/linux/kernel/git/masahiroy/linux-kbuild: (34 commits)
Makefile: Update kselftest help information
kbuild: deb-pkg: fix warning when CONFIG_DEBUG_INFO is unset
kbuild: add outputmakefile to no-dot-config-targets
kbuild: remove AS variable
net: wan: wanxl: refactor the firmware rebuild rule
net: wan: wanxl: use $(M68KCC) instead of $(M68KAS) for rebuilding firmware
net: wan: wanxl: use allow to pass CROSS_COMPILE_M68k for rebuilding firmware
kbuild: add comment about grouped target
kbuild: add -Wall to KBUILD_HOSTCXXFLAGS
kconfig: remove unused variable in qconf.cc
sparc: revive __HAVE_ARCH_STRLEN for 32bit sparc
kbuild: refactor Makefile.dtbinst more
kbuild: compute the dtbs_install destination more simply
Makefile: disallow data races on gcc-10 as well
kconfig: make 'imply' obey the direct dependency
kconfig: allow symbols implied by y to become m
net: drop_monitor: use IS_REACHABLE() to guard net_dm_hw_report()
modpost: return error if module is missing ns imports and MODULE_ALLOW_MISSING_NAMESPACE_IMPORTS=n
modpost: rework and consolidate logging interface
kbuild: allow to run dt_binding_check without kernel configuration
...
Pull security subsystem updates from James Morris:
"Two minor updates for the core security subsystem:
- kernel-doc warning fixes from Randy Dunlap
- header cleanup from YueHaibing"
* 'next-general' of git://git.kernel.org:/pub/scm/linux/kernel/git/jmorris/linux-security:
security: remove duplicated include from security.h
security: <linux/lsm_hooks.h>: fix all kernel-doc warnings
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Merge tag 'selinux-pr-20200330' of git://git.kernel.org/pub/scm/linux/kernel/git/pcmoore/selinux
Pull SELinux updates from Paul Moore:
"We've got twenty SELinux patches for the v5.7 merge window, the
highlights are below:
- Deprecate setting /sys/fs/selinux/checkreqprot to 1.
This flag was originally created to deal with legacy userspace and
the READ_IMPLIES_EXEC personality flag. We changed the default from
1 to 0 back in Linux v4.4 and now we are taking the next step of
deprecating it, at some point in the future we will take the final
step of rejecting 1.
- Allow kernfs symlinks to inherit the SELinux label of the parent
directory. In order to preserve backwards compatibility this is
protected by the genfs_seclabel_symlinks SELinux policy capability.
- Optimize how we store filename transitions in the kernel, resulting
in some significant improvements to policy load times.
- Do a better job calculating our internal hash table sizes which
resulted in additional policy load improvements and likely general
SELinux performance improvements as well.
- Remove the unused initial SIDs (labels) and improve how we handle
initial SIDs.
- Enable per-file labeling for the bpf filesystem.
- Ensure that we properly label NFS v4.2 filesystems to avoid a
temporary unlabeled condition.
- Add some missing XFS quota command types to the SELinux quota
access controls.
- Fix a problem where we were not updating the seq_file position
index correctly in selinuxfs.
- We consolidate some duplicated code into helper functions.
- A number of list to array conversions.
- Update Stephen Smalley's email address in MAINTAINERS"
* tag 'selinux-pr-20200330' of git://git.kernel.org/pub/scm/linux/kernel/git/pcmoore/selinux:
selinux: clean up indentation issue with assignment statement
NFS: Ensure security label is set for root inode
MAINTAINERS: Update my email address
selinux: avtab_init() and cond_policydb_init() return void
selinux: clean up error path in policydb_init()
selinux: remove unused initial SIDs and improve handling
selinux: reduce the use of hard-coded hash sizes
selinux: Add xfs quota command types
selinux: optimize storage of filename transitions
selinux: factor out loop body from filename_trans_read()
security: selinux: allow per-file labeling for bpffs
selinux: generalize evaluate_cond_node()
selinux: convert cond_expr to array
selinux: convert cond_av_list to array
selinux: convert cond_list to array
selinux: sel_avc_get_stat_idx should increase position index
selinux: allow kernfs symlinks to inherit parent directory context
selinux: simplify evaluate_cond_node()
Documentation,selinux: deprecate setting checkreqprot to 1
selinux: move status variables out of selinux_ss
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Merge tag 'audit-pr-20200330' of git://git.kernel.org/pub/scm/linux/kernel/git/pcmoore/audit
Pull audit updates from Paul Moore:
"We've got two audit patches for the v5.7 merge window with a stellar
14 lines changed between the two patches. The patch descriptions are
far more lengthy than the patches themselves, which is a very good
thing for patches this size IMHO. The patches pass our test suites and
a quick summary is below:
- Stop logging inode information when updating an audit file watch.
Since we are not changing the inode, or the fact that we are
watching the associated file, the inode information is just noise
that we can do without.
- Fix a problem where mandatory audit records were missing their
accompanying audit records (e.g. SYSCALL records were missing).
The missing records often meant that we didn't have the necessary
context to understand what was going on when the event occurred"
* tag 'audit-pr-20200330' of git://git.kernel.org/pub/scm/linux/kernel/git/pcmoore/audit:
audit: trigger accompanying records when no rules present
audit: CONFIG_CHANGE don't log internal bookkeeping as an event
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Merge tag '5.7-rc-smb3-fixes-part1' of git://git.samba.org/sfrench/cifs-2.6
Pull cifs updates from Steve French:
"First part of cifs/smb3 changes for merge window (others are still
being tested). Various RDMA (smbdirect) fixes, addition of SMB3.1.1
POSIX support in readdir, 3 fixes for stable, and a fix for flock.
Summary:
New feature:
- SMB3.1.1 POSIX support in readdir
Fixes:
- various RDMA (smbdirect) fixes
- fix for flock
- fallocate fix
- some improved mount warnings
- two timestamp related fixes
- reconnect fix
- three fixes for stable"
* tag '5.7-rc-smb3-fixes-part1' of git://git.samba.org/sfrench/cifs-2.6: (28 commits)
cifs: update internal module version number
cifs: Allocate encryption header through kmalloc
cifs: smbd: Check and extend sender credits in interrupt context
cifs: smbd: Calculate the correct maximum packet size for segmented SMBDirect send/receive
smb3: use SMB2_SIGNATURE_SIZE define
CIFS: Fix bug which the return value by asynchronous read is error
CIFS: check new file size when extending file by fallocate
SMB3: Minor cleanup of protocol definitions
SMB3: Additional compression structures
SMB3: Add new compression flags
cifs: smb2pdu.h: Replace zero-length array with flexible-array member
cifs: clear PF_MEMALLOC before exiting demultiplex thread
cifs: cifspdu.h: Replace zero-length array with flexible-array member
CIFS: Warn less noisily on default mount
fs/cifs: fix gcc warning in sid_to_id
cifs: allow unlock flock and OFD lock across fork
cifs: do d_move in rename
cifs: add SMB2_open() arg to return POSIX data
cifs: plumb smb2 POSIX dir enumeration
cifs: add smb2 POSIX info level
...
are related to corruption that occurs when journals are replayed.
For example:
1. A node fails while writing to the file system.
2. Other nodes use the metadata that was once used by the failed node.
3. When the node returns to the cluster, its journal is replayed,
but the older metadata blocks overwrite the changes from step 2.
- Fixed the recovery sequence to prevent corruption during journal replay.
- Many bug fixes found during recovery testing.
- New improved file system withdraw sequence.
- Fixed how resource group buffers are managed.
- Fixed how metadata revokes are tracked and written.
- Improve processing of IO errors hit by daemons like logd and quotad.
- Improved error checking in metadata writes.
- Fixed how qadata quota data structures are managed.
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Merge tag 'gfs2-for-5.7' of git://git.kernel.org/pub/scm/linux/kernel/git/gfs2/linux-gfs2
Pull gfs2 updates from Bob Peterson:
"We've got a lot of patches (39) for this merge window. Most of these
patches are related to corruption that occurs when journals are
replayed. For example:
1. A node fails while writing to the file system.
2. Other nodes use the metadata that was once used by the failed
node.
3. When the node returns to the cluster, its journal is replayed, but
the older metadata blocks overwrite the changes from step 2.
Summary:
- Fixed the recovery sequence to prevent corruption during journal
replay.
- Many bug fixes found during recovery testing.
- New improved file system withdraw sequence.
- Fixed how resource group buffers are managed.
- Fixed how metadata revokes are tracked and written.
- Improve processing of IO errors hit by daemons like logd and
quotad.
- Improved error checking in metadata writes.
- Fixed how qadata quota data structures are managed"
* tag 'gfs2-for-5.7' of git://git.kernel.org/pub/scm/linux/kernel/git/gfs2/linux-gfs2: (39 commits)
gfs2: Fix oversight in gfs2_ail1_flush
gfs2: change from write to read lock for sd_log_flush_lock in journal replay
gfs2: instrumentation wrt ail1 stuck
gfs2: don't lock sd_log_flush_lock in try_rgrp_unlink
gfs2: Remove unnecessary gfs2_qa_{get,put} pairs
gfs2: Split gfs2_rsqa_delete into gfs2_rs_delete and gfs2_qa_put
gfs2: Change inode qa_data to allow multiple users
gfs2: eliminate gfs2_rsqa_alloc in favor of gfs2_qa_alloc
gfs2: Switch to list_{first,last}_entry
gfs2: Clean up inode initialization and teardown
gfs2: Additional information when gfs2_ail1_flush withdraws
gfs2: leaf_dealloc needs to allocate one more revoke
gfs2: allow journal replay to hold sd_log_flush_lock
gfs2: don't allow releasepage to free bd still used for revokes
gfs2: flesh out delayed withdraw for gfs2_log_flush
gfs2: Do proper error checking for go_sync family of glops functions
gfs2: Don't demote a glock until its revokes are written
gfs2: drain the ail2 list after io errors
gfs2: Withdraw in gfs2_ail1_flush if write_cache_pages fails
gfs2: Do log_flush in gfs2_ail_empty_gl even if ail list is empty
...
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Merge tag 'for-5.7-tag' of git://git.kernel.org/pub/scm/linux/kernel/git/kdave/linux
Pull btrfs updates from David Sterba:
"A number of core changes that make things work better in general, code
is simpler and cleaner.
Core changes:
- per-inode file extent tree, for in memory tracking of contiguous
extent ranges to make sure i_size adjustments are accurate
- tree root structures are protected by reference counts, replacing
SRCU that did not cover some cases
- leak detector for tree root structures
- per-transaction pinned extent tracking
- buffer heads are replaced by bios for super block access
- speedup of extent back reference resolution, on an example test
scenario the runtime of send went down from a hour to minutes
- factor out locking scheme used for subvolume writer and NOCOW
exclusion, abstracted as DREW lock, double reader-writer exclusion
(allow either readers or writers)
- cleanup and abstract extent allocation policies, preparation for
zoned device support
- make reflink/clone_range work on inline extents
- add more cancellation point for relocation, improves long response
from 'balance cancel'
- add page migration callback for data pages
- switch to guid for uuids, with additional cleanups of the interface
- make ranged full fsyncs more efficient
- removal of obsolete ioctl flag BTRFS_SUBVOL_CREATE_ASYNC
- remove b-tree readahead from delayed refs paths, avoiding seek and
read unnecessary blocks
Features:
- v2 of ioctl to delete subvolumes, allowing to delete by id and more
future extensions
Fixes:
- fix qgroup rescan worker that could block umount
- fix crash during unmount due to race with delayed inode workers
- fix dellaloc flushing logic that could create unnecessary chunks
under heavy load
- fix missing file extent item for hole after ranged fsync
- several fixes in relocation error handling
Other:
- more documentation of relocation, device replace, space
reservations
- many random cleanups"
* tag 'for-5.7-tag' of git://git.kernel.org/pub/scm/linux/kernel/git/kdave/linux: (210 commits)
btrfs: fix missing semaphore unlock in btrfs_sync_file
btrfs: use nofs allocations for running delayed items
btrfs: sysfs: Use scnprintf() instead of snprintf()
btrfs: do not resolve backrefs for roots that are being deleted
btrfs: track reloc roots based on their commit root bytenr
btrfs: restart relocate_tree_blocks properly
btrfs: reloc: reorder reservation before root selection
btrfs: do not readahead in build_backref_tree
btrfs: do not use readahead for running delayed refs
btrfs: Remove async_transid from btrfs_mksubvol/create_subvol/create_snapshot
btrfs: Remove transid argument from btrfs_ioctl_snap_create_transid
btrfs: Remove BTRFS_SUBVOL_CREATE_ASYNC support
btrfs: kill the subvol_srcu
btrfs: make btrfs_cleanup_fs_roots use the radix tree lock
btrfs: don't take an extra root ref at allocation time
btrfs: hold a ref on the root on the dead roots list
btrfs: make inodes hold a ref on their roots
btrfs: move the root freeing stuff into btrfs_put_root
btrfs: move ino_cache_inode dropping out of btrfs_free_fs_root
btrfs: make the extent buffer leak check per fs info
...
Add an ioctl FS_IOC_GET_ENCRYPTION_NONCE which retrieves a file's
encryption nonce. This makes it easier to write automated tests which
verify that fscrypt is doing the encryption correctly.
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Merge tag 'fscrypt-for-linus' of git://git.kernel.org/pub/scm/fs/fscrypt/fscrypt
Pull fscrypt updates from Eric Biggers:
"Add an ioctl FS_IOC_GET_ENCRYPTION_NONCE which retrieves a file's
encryption nonce.
This makes it easier to write automated tests which verify that
fscrypt is doing the encryption correctly"
* tag 'fscrypt-for-linus' of git://git.kernel.org/pub/scm/fs/fscrypt/fscrypt:
ubifs: wire up FS_IOC_GET_ENCRYPTION_NONCE
f2fs: wire up FS_IOC_GET_ENCRYPTION_NONCE
ext4: wire up FS_IOC_GET_ENCRYPTION_NONCE
fscrypt: add FS_IOC_GET_ENCRYPTION_NONCE ioctl
Pull x86 vmware updates from Ingo Molnar:
"The main change in this tree is the addition of 'steal time clock
support' for VMware guests"
* 'x86-vmware-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
x86/vmware: Use bool type for vmw_sched_clock
x86/vmware: Enable steal time accounting
x86/vmware: Add steal time clock support for VMware guests
x86/vmware: Remove vmware_sched_clock_setup()
x86/vmware: Make vmware_select_hypercall() __init
Pull x86 mm updates from Ingo Molnar:
"A handful of changes:
- two memory encryption related fixes
- don't display the kernel's virtual memory layout plaintext on
32-bit kernels either
- two simplifications"
* 'x86-mm-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
x86/mm: Remove the now redundant N_MEMORY check
dma-mapping: Fix dma_pgprot() for unencrypted coherent pages
x86: Don't let pgprot_modify() change the page encryption bit
x86/mm/kmmio: Use this_cpu_ptr() instead get_cpu_var() for kmmio_ctx
x86/mm/init/32: Stop printing the virtual memory layout
Pull misc x86 updates from Ingo Molnar:
- extend the decoder maps with CET instructions
- fix !vDSO corner cases
* 'x86-misc-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
perf/tests: Add CET instructions to the new instructions test
x86/insn: Add Control-flow Enforcement (CET) instructions to the opcode map
selftests/x86/ptrace_syscall_32: Fix no-vDSO segfault
selftests/x86/vdso: Fix no-vDSO segfaults
Pull x86 fpu updates from Ingo Molnar:
"Misc changes:
- add a pkey sanity check
- three commits to improve and future-proof xstate/xfeature handling
some more"
* 'x86-fpu-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
x86/pkeys: Add check for pkey "overflow"
x86/fpu/xstate: Warn when checking alignment of disabled xfeatures
x86/fpu/xstate: Fix XSAVES offsets in setup_xstate_comp()
x86/fpu/xstate: Fix last_good_offset in setup_xstate_features()
Pull x86 cleanups from Ingo Molnar:
"This topic tree contains more commits than usual:
- most of it are uaccess cleanups/reorganization by Al
- there's a bunch of prototype declaration (--Wmissing-prototypes)
cleanups
- misc other cleanups all around the map"
* 'x86-cleanups-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: (36 commits)
x86/mm/set_memory: Fix -Wmissing-prototypes warnings
x86/efi: Add a prototype for efi_arch_mem_reserve()
x86/mm: Mark setup_emu2phys_nid() static
x86/jump_label: Move 'inline' keyword placement
x86/platform/uv: Add a missing prototype for uv_bau_message_interrupt()
kill uaccess_try()
x86: unsafe_put-style macro for sigmask
x86: x32_setup_rt_frame(): consolidate uaccess areas
x86: __setup_rt_frame(): consolidate uaccess areas
x86: __setup_frame(): consolidate uaccess areas
x86: setup_sigcontext(): list user_access_{begin,end}() into callers
x86: get rid of put_user_try in __setup_rt_frame() (both 32bit and 64bit)
x86: ia32_setup_rt_frame(): consolidate uaccess areas
x86: ia32_setup_frame(): consolidate uaccess areas
x86: ia32_setup_sigcontext(): lift user_access_{begin,end}() into the callers
x86/alternatives: Mark text_poke_loc_init() static
x86/cpu: Fix a -Wmissing-prototypes warning for init_ia32_feat_ctl()
x86/mm: Drop pud_mknotpresent()
x86: Replace setup_irq() by request_irq()
x86/configs: Slightly reduce defconfigs
...
Pull x86 build updates from Ingo Molnar:
"A handful of updates: two linker script cleanups and a stock
defconfig+allmodconfig bootability fix"
* 'x86-build-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
x86/vdso: Discard .note.gnu.property sections in vDSO
x86, vmlinux.lds: Add RUNTIME_DISCARD_EXIT to generic DISCARDS
x86/Kconfig: Make CMDLINE_OVERRIDE depend on non-empty CMDLINE
Pull x86 boot updates from Ingo Molnar:
"Misc cleanups and small enhancements all around the map"
* 'x86-boot-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
x86/boot/compressed: Fix debug_puthex() parameter type
x86/setup: Fix static memory detection
x86/vmlinux: Drop unneeded linker script discard of .eh_frame
x86/*/Makefile: Use -fno-asynchronous-unwind-tables to suppress .eh_frame sections
x86/boot/compressed: Remove .eh_frame section from bzImage
x86/boot/compressed/64: Remove .bss/.pgtable from bzImage
x86/boot/compressed/64: Use 32-bit (zero-extended) MOV for z_output_len
x86/boot/compressed/64: Use LEA to initialize boot stack pointer
In case memory resources for buf were allocated, release them before
return.
Addresses-Coverity-ID: 1492011 ("Resource leak")
Fixes: a7a29f9c36 ("net: ipv6: add rpl sr tunnel")
Signed-off-by: Gustavo A. R. Silva <gustavo@embeddedor.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Included nic tls statistics in ethtool stats.
Signed-off-by: Rohit Maheshwari <rohitm@chelsio.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Fix an oops in dsa_port_phylink_mac_change() caused by a combination
of a20f997010 ("net: dsa: Don't instantiate phylink for CPU/DSA
ports unless needed") and the net-dsa-improve-serdes-integration
series of patches 65b7a2c8e3 ("Merge branch
'net-dsa-improve-serdes-integration'").
Unable to handle kernel NULL pointer dereference at virtual address 00000124
pgd = c0004000
[00000124] *pgd=00000000
Internal error: Oops: 805 [#1] SMP ARM
Modules linked in: tag_edsa spi_nor mtd xhci_plat_hcd mv88e6xxx(+) xhci_hcd armada_thermal marvell_cesa dsa_core ehci_orion libdes phy_armada38x_comphy at24 mcp3021 sfp evbug spi_orion sff mdio_i2c
CPU: 1 PID: 214 Comm: irq/55-mv88e6xx Not tainted 5.6.0+ #470
Hardware name: Marvell Armada 380/385 (Device Tree)
PC is at phylink_mac_change+0x10/0x88
LR is at mv88e6352_serdes_irq_status+0x74/0x94 [mv88e6xxx]
Signed-off-by: Russell King <rmk+kernel@armlinux.org.uk>
Reviewed-by: Vivien Didelot <vivien.didelot@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
A testing message was brought by 13d0f7b814 ("net/bpfilter: fix dprintf
usage for /dev/kmsg") but should've been deleted before patch submission.
Although it doesn't cause any harm to the code or functionality itself, it's
totally unpleasant to have it displayed on every loop iteration with no real
use case. Thus remove it unconditionally.
Fixes: 13d0f7b814 ("net/bpfilter: fix dprintf usage for /dev/kmsg")
Signed-off-by: Bruno Meneguele <bmeneg@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
fixed-link nodes are treated as PHY nodes by of_mdiobus_child_is_phy().
We must check if the interface is a fixed-link before looking up for PHY
nodes.
Fixes: 7897b071ac ("net: macb: convert to phylink")
Tested-by: Cristian Birsan <cristian.birsan@microchip.com>
Signed-off-by: Codrin Ciubotariu <codrin.ciubotariu@microchip.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
- In-kernel Pointer Authentication support (previously only offered to
user space).
- ARM Activity Monitors (AMU) extension support allowing better CPU
utilisation numbers for the scheduler (frequency invariance).
- Memory hot-remove support for arm64.
- Lots of asm annotations (SYM_*) in preparation for the in-kernel
Branch Target Identification (BTI) support.
- arm64 perf updates: ARMv8.5-PMU 64-bit counters, refactoring the PMU
init callbacks, support for new DT compatibles.
- IPv6 header checksum optimisation.
- Fixes: SDEI (software delegated exception interface) double-lock on
hibernate with shared events.
- Minor clean-ups and refactoring: cpu_ops accessor, cpu_do_switch_mm()
converted to C, cpufeature finalisation helper.
- sys_mremap() comment explaining the asymmetric address untagging
behaviour.
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Merge tag 'arm64-upstream' of git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux
Pull arm64 updates from Catalin Marinas:
"The bulk is in-kernel pointer authentication, activity monitors and
lots of asm symbol annotations. I also queued the sys_mremap() patch
commenting the asymmetry in the address untagging.
Summary:
- In-kernel Pointer Authentication support (previously only offered
to user space).
- ARM Activity Monitors (AMU) extension support allowing better CPU
utilisation numbers for the scheduler (frequency invariance).
- Memory hot-remove support for arm64.
- Lots of asm annotations (SYM_*) in preparation for the in-kernel
Branch Target Identification (BTI) support.
- arm64 perf updates: ARMv8.5-PMU 64-bit counters, refactoring the
PMU init callbacks, support for new DT compatibles.
- IPv6 header checksum optimisation.
- Fixes: SDEI (software delegated exception interface) double-lock on
hibernate with shared events.
- Minor clean-ups and refactoring: cpu_ops accessor,
cpu_do_switch_mm() converted to C, cpufeature finalisation helper.
- sys_mremap() comment explaining the asymmetric address untagging
behaviour"
* tag 'arm64-upstream' of git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux: (81 commits)
mm/mremap: Add comment explaining the untagging behaviour of mremap()
arm64: head: Convert install_el2_stub to SYM_INNER_LABEL
arm64: Introduce get_cpu_ops() helper function
arm64: Rename cpu_read_ops() to init_cpu_ops()
arm64: Declare ACPI parking protocol CPU operation if needed
arm64: move kimage_vaddr to .rodata
arm64: use mov_q instead of literal ldr
arm64: Kconfig: verify binutils support for ARM64_PTR_AUTH
lkdtm: arm64: test kernel pointer authentication
arm64: compile the kernel with ptrauth return address signing
kconfig: Add support for 'as-option'
arm64: suspend: restore the kernel ptrauth keys
arm64: __show_regs: strip PAC from lr in printk
arm64: unwind: strip PAC from kernel addresses
arm64: mask PAC bits of __builtin_return_address
arm64: initialize ptrauth keys for kernel booting task
arm64: initialize and switch ptrauth kernel keys
arm64: enable ptrauth earlier
arm64: cpufeature: handle conflicts based on capability
arm64: cpufeature: Move cpu capability helpers inside C file
...
KSZ protocol tag is needed by the KSZ DSA drivers.
Fixes: 0b9f9dfbfa ("dsa: Allow tag drivers to be built as modules")
Tested-by: Cristian Birsan <cristian.birsan@microchip.com>
Signed-off-by: Codrin Ciubotariu <codrin.ciubotariu@microchip.com>
Reviewed-by: Andrew Lunn <andrew@lunn.ch>
Reviewed-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
- Convert license headers to SPDX
- Cleanup header handling and use asm-generic one
- Get rid of earlyprintk residues
- Define barriers and use it in the code
- Get rid of setup_irq() for timer
- Various small addons and fixes
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Merge tag 'microblaze-v5.7-rc1' of git://git.monstr.eu/linux-2.6-microblaze
Pull microblaze updates from Michal Simek:
- convert license headers to SPDX
- cleanup header handling and use asm-generic one
- get rid of earlyprintk residues
- define barriers and use it in the code
- get rid of setup_irq() for timer
- various small addons and fixes
* tag 'microblaze-v5.7-rc1' of git://git.monstr.eu/linux-2.6-microblaze:
microblaze: Replace setup_irq() by request_irq()
microblaze: Stop printing the virtual memory layout
microblaze: Use asm generic cmpxchg.h for !SMP case
microblaze: Define percpu sestion in linker file
microblaze: Remove unused boot_cpuid variable
microblaze: Add missing irqflags.h header
microblaze: Add sync to tlb operations
microblaze: Define microblaze barrier
microblaze: Remove empty headers
microblaze: Remove early printk setup
microblaze: Remove architecture tlb.h and use generic one
microblaze: Convert headers to SPDX license
microblaze: Fix _reset() function
microblaze: Kernel parameters should be parsed earlier
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Merge tag 'please-pull-ia64_for_5.7' of git://git.kernel.org/pub/scm/linux/kernel/git/aegl/linux
Pull ia64 updates from Tony Luck:
"Couple of cleanup patches"
* tag 'please-pull-ia64_for_5.7' of git://git.kernel.org/pub/scm/linux/kernel/git/aegl/linux:
tty/serial: cleanup after ioc*_serial driver removal
ia64: replace setup_irq() by request_irq()
Take the target reg in __cpuid_entry_get_reg() instead of a pointer to a
struct cpuid_reg. When building with -fsanitize=alignment (enabled by
CONFIG_UBSAN=y), some versions of gcc get tripped up on the pointer and
trigger the BUILD_BUG().
Reported-by: Randy Dunlap <rdunlap@infradead.org>
Fixes: d8577a4c23 ("KVM: x86: Do host CPUID at load time to mask KVM cpu caps")
Fixes: 4c61534aaa ("KVM: x86: Introduce cpuid_entry_{get,has}() accessors")
Signed-off-by: Sean Christopherson <sean.j.christopherson@intel.com>
Message-Id: <20200325191259.23559-1-sean.j.christopherson@intel.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Add a hand coded assembly trampoline to preserve volatile registers
across vmread_error(), and to handle the calling convention differences
between 64-bit and 32-bit due to asmlinkage on vmread_error(). Pass
@field and @fault on the stack when invoking the trampoline to avoid
clobbering volatile registers in the context of the inline assembly.
Calling vmread_error() directly from inline assembly is partially broken
on 64-bit, and completely broken on 32-bit. On 64-bit, it will clobber
%rdi and %rsi (used to pass @field and @fault) and any volatile regs
written by vmread_error(). On 32-bit, asmlinkage means vmread_error()
expects the parameters to be passed on the stack, not via regs.
Opportunistically zero out the result in the trampoline to save a few
bytes of code for every VMREAD. A happy side effect of the trampoline
is that the inline code footprint is reduced by three bytes on 64-bit
due to PUSH/POP being more efficent (in terms of opcode bytes) than MOV.
Fixes: 6e2020977e ("KVM: VMX: Add error handling to VMREAD helper")
Cc: stable@vger.kernel.org
Signed-off-by: Sean Christopherson <sean.j.christopherson@intel.com>
Message-Id: <20200326160712.28803-1-sean.j.christopherson@intel.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Tag svm_x86_ops with __initdata now the the struct is copied by value to
a common x86 instance of kvm_x86_ops as part of kvm_init().
Signed-off-by: Sean Christopherson <sean.j.christopherson@intel.com>
Message-Id: <20200321202603.19355-10-sean.j.christopherson@intel.com>
Reviewed-by: Vitaly Kuznetsov <vkuznets@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Tag vmx_x86_ops with __initdata now the the struct is copied by value to
a common x86 instance of kvm_x86_ops as part of kvm_init().
Signed-off-by: Sean Christopherson <sean.j.christopherson@intel.com>
Message-Id: <20200321202603.19355-9-sean.j.christopherson@intel.com>
Reviewed-by: Vitaly Kuznetsov <vkuznets@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Remove the __exit annotation from VMX hardware_unsetup(), the hook
can be reached during kvm_init() by way of kvm_arch_hardware_unsetup()
if failure occurs at various points during initialization.
Removing the annotation also lets us annotate vmx_x86_ops and svm_x86_ops
with __initdata; otherwise, objtool complains because it doesn't
understand that the vendor specific __initdata is being copied by value
to a non-__initdata instance.
Signed-off-by: Sean Christopherson <sean.j.christopherson@intel.com>
Message-Id: <20200321202603.19355-8-sean.j.christopherson@intel.com>
Reviewed-by: Vitaly Kuznetsov <vkuznets@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Replace the kvm_x86_ops pointer in common x86 with an instance of the
struct to save one pointer dereference when invoking functions. Copy the
struct by value to set the ops during kvm_init().
Arbitrarily use kvm_x86_ops.hardware_enable to track whether or not the
ops have been initialized, i.e. a vendor KVM module has been loaded.
Suggested-by: Paolo Bonzini <pbonzini@redhat.com>
Signed-off-by: Sean Christopherson <sean.j.christopherson@intel.com>
Message-Id: <20200321202603.19355-7-sean.j.christopherson@intel.com>
Reviewed-by: Vitaly Kuznetsov <vkuznets@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Set kvm_x86_ops with the vendor's ops only after ->hardware_setup()
completes to "prevent" using kvm_x86_ops before they are ready, i.e. to
generate a null pointer fault instead of silently consuming unconfigured
state.
An alternative implementation would be to have ->hardware_setup()
return the vendor's ops, but that would require non-trivial refactoring,
and would arguably result in less readable code, e.g. ->hardware_setup()
would need to use ERR_PTR() in multiple locations, and each vendor's
declaration of the runtime ops would be less obvious.
No functional change intended.
Signed-off-by: Sean Christopherson <sean.j.christopherson@intel.com>
Message-Id: <20200321202603.19355-6-sean.j.christopherson@intel.com>
Reviewed-by: Vitaly Kuznetsov <vkuznets@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Configure VMX's runtime hooks by modifying vmx_x86_ops directly instead
of using the global kvm_x86_ops. This sets the stage for waiting until
after ->hardware_setup() to set kvm_x86_ops with the vendor's
implementation.
Signed-off-by: Sean Christopherson <sean.j.christopherson@intel.com>
Message-Id: <20200321202603.19355-5-sean.j.christopherson@intel.com>
Reviewed-by: Vitaly Kuznetsov <vkuznets@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Move VMX's hardware_setup() below its vmx_x86_ops definition so that a
future patch can refactor hardware_setup() to modify vmx_x86_ops
directly instead of indirectly modifying the ops via the global
kvm_x86_ops.
No functional change intended.
Signed-off-by: Sean Christopherson <sean.j.christopherson@intel.com>
Message-Id: <20200321202603.19355-4-sean.j.christopherson@intel.com>
Reviewed-by: Vitaly Kuznetsov <vkuznets@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Move the kvm_x86_ops functions that are used only within the scope of
kvm_init() into a separate struct, kvm_x86_init_ops. In addition to
identifying the init-only functions without restorting to code comments,
this also sets the stage for waiting until after ->hardware_setup() to
set kvm_x86_ops. Setting kvm_x86_ops after ->hardware_setup() is
desirable as many of the hooks are not usable until ->hardware_setup()
completes.
No functional change intended.
Signed-off-by: Sean Christopherson <sean.j.christopherson@intel.com>
Message-Id: <20200321202603.19355-3-sean.j.christopherson@intel.com>
Reviewed-by: Vitaly Kuznetsov <vkuznets@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Pass @opaque to kvm_arch_hardware_setup() and
kvm_arch_check_processor_compat() to allow architecture specific code to
reference @opaque without having to stash it away in a temporary global
variable. This will enable x86 to separate its vendor specific callback
ops, which are passed via @opaque, into "init" and "runtime" ops without
having to stash away the "init" ops.
No functional change intended.
Reviewed-by: Cornelia Huck <cohuck@redhat.com>
Tested-by: Cornelia Huck <cohuck@redhat.com> #s390
Acked-by: Marc Zyngier <maz@kernel.org>
Signed-off-by: Sean Christopherson <sean.j.christopherson@intel.com>
Message-Id: <20200321202603.19355-2-sean.j.christopherson@intel.com>
Reviewed-by: Vitaly Kuznetsov <vkuznets@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
* Add a capability for enabling secure guests under the Protected
Execution Framework ultravisor
* Various bug fixes and cleanups.
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Merge tag 'kvm-ppc-next-5.7-1' of git://git.kernel.org/pub/scm/linux/kernel/git/paulus/powerpc into HEAD
KVM PPC update for 5.7
* Add a capability for enabling secure guests under the Protected
Execution Framework ultravisor
* Various bug fixes and cleanups.
A bit smaller this time around.. there are still a couple uabi
additions for vulkan waiting in the wings, but I punted on them this
cycle due to running low on time. (They should be easy enough to
rebase, and if it is a problem for anyone I can push a next+uabi
branch so that tu work can proceed.)
The bigger change is refactoring dpu resource manager and moving dpu
to use atomic global state. Other than that, it is mostly cleanups
and fixes.
From: Rob Clark <robdclark@gmail.com>
Link: https://patchwork.freedesktop.org/patch/msgid/ <CAF6AEGuf1R4Xz-t9Z7_cwx9jD=b4wUvvwfqA5cHR8fCSXSd5XQ@mail.gmail.com
Signed-off-by: Dave Airlie <airlied@redhat.com>
