Add AMD back to the embargoed-hardware-issues.rst list. There was
confusion about a recent issue that ended up being due to third-party's
misrepresentation, not AMD, so add AMD back to the list to get notified
properly as they understand the proper procedures to follow.
Cc: Tom Lendacky <thomas.lendacky@amd.com>
Cc: Thomas Gleixner <tglx@linutronix.de>
Link: https://lore.kernel.org/r/2023072514-submersed-yanking-652e@gregkh
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
There are a few empty entries in the company/project list, which
confuses people as to why they are there, so remove them entirely, and
also remove an entry that doesn't wish to participate in this process.
Cc: Tom Lendacky <thomas.lendacky@amd.com>
Reviewed-by: Thomas Gleixner <tglx@linutronix.de>
Link: https://lore.kernel.org/r/2023062742-mouse-appease-7917@gregkh
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
The kernel security team does NOT assign CVEs, so document that properly
and provide the "if you want one, ask MITRE for it" response that we
give on a weekly basis in the document, so we don't have to constantly
say it to everyone who asks.
Link: https://lore.kernel.org/r/2023063022-retouch-kerosene-7e4a@gregkh
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Because the linux-distros group forces reporters to release information
about reported bugs, and they impose arbitrary deadlines in having those
bugs fixed despite not actually being kernel developers, the kernel
security team recommends not interacting with them at all as this just
causes confusion and the early-release of reported security problems.
Reviewed-by: Kees Cook <keescook@chromium.org>
Link: https://lore.kernel.org/r/2023063020-throat-pantyhose-f110@gregkh
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
also have a kernel-doc tweak for enums and the long-overdue removal of the
outdated and redundant patch-submission comments at the top of the
MAINTAINERS file.
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Merge tag 'docs-6.5-2' of git://git.lwn.net/linux
Pull mode documentation updates from Jonathan Corbet:
"A half-dozen late arriving docs patches. They are mostly fixes, but we
also have a kernel-doc tweak for enums and the long-overdue removal of
the outdated and redundant patch-submission comments at the top of the
MAINTAINERS file"
* tag 'docs-6.5-2' of git://git.lwn.net/linux:
scripts: kernel-doc: support private / public marking for enums
Documentation: KVM: SEV: add a missing backtick
Documentation: ACPI: fix typo in ssdt-overlays.rst
Fix documentation of panic_on_warn
docs: remove the tips on how to submit patches from MAINTAINERS
docs: fix typo in zh_TW and zh_CN translation
Current release - regressions:
- nvme-tcp: fix comma-related oops after sendpage changes
Current release - new code bugs:
- ptp: make max_phase_adjustment sysfs device attribute invisible
when not supported
Previous releases - regressions:
- sctp: fix potential deadlock on &net->sctp.addr_wq_lock
- mptcp:
- ensure subflow is unhashed before cleaning the backlog
- do not rely on implicit state check in mptcp_listen()
Previous releases - always broken:
- net: fix net_dev_start_xmit trace event vs skb_transport_offset()
- Bluetooth:
- fix use-bdaddr-property quirk
- L2CAP: fix multiple UaFs
- ISO: use hci_sync for setting CIG parameters
- hci_event: fix Set CIG Parameters error status handling
- hci_event: fix parsing of CIS Established Event
- MGMT: fix marking SCAN_RSP as not connectable
- wireguard: queuing: use saner cpu selection wrapping
- sched: act_ipt: various bug fixes for iptables <> TC interactions
- sched: act_pedit: add size check for TCA_PEDIT_PARMS_EX
- dsa: fixes for receiving PTP packets with 8021q and sja1105 tagging
- eth: sfc: fix null-deref in devlink port without MAE access
- eth: ibmvnic: do not reset dql stats on NON_FATAL err
Misc:
- xsk: honor SO_BINDTODEVICE on bind
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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Merge tag 'net-6.5-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net
Pull networking fixes from Jakub Kicinski:
"Including fixes from bluetooth, bpf and wireguard.
Current release - regressions:
- nvme-tcp: fix comma-related oops after sendpage changes
Current release - new code bugs:
- ptp: make max_phase_adjustment sysfs device attribute invisible
when not supported
Previous releases - regressions:
- sctp: fix potential deadlock on &net->sctp.addr_wq_lock
- mptcp:
- ensure subflow is unhashed before cleaning the backlog
- do not rely on implicit state check in mptcp_listen()
Previous releases - always broken:
- net: fix net_dev_start_xmit trace event vs skb_transport_offset()
- Bluetooth:
- fix use-bdaddr-property quirk
- L2CAP: fix multiple UaFs
- ISO: use hci_sync for setting CIG parameters
- hci_event: fix Set CIG Parameters error status handling
- hci_event: fix parsing of CIS Established Event
- MGMT: fix marking SCAN_RSP as not connectable
- wireguard: queuing: use saner cpu selection wrapping
- sched: act_ipt: various bug fixes for iptables <> TC interactions
- sched: act_pedit: add size check for TCA_PEDIT_PARMS_EX
- dsa: fixes for receiving PTP packets with 8021q and sja1105 tagging
- eth: sfc: fix null-deref in devlink port without MAE access
- eth: ibmvnic: do not reset dql stats on NON_FATAL err
Misc:
- xsk: honor SO_BINDTODEVICE on bind"
* tag 'net-6.5-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net: (70 commits)
nfp: clean mc addresses in application firmware when closing port
selftests: mptcp: pm_nl_ctl: fix 32-bit support
selftests: mptcp: depend on SYN_COOKIES
selftests: mptcp: userspace_pm: report errors with 'remove' tests
selftests: mptcp: userspace_pm: use correct server port
selftests: mptcp: sockopt: return error if wrong mark
selftests: mptcp: sockopt: use 'iptables-legacy' if available
selftests: mptcp: connect: fail if nft supposed to work
mptcp: do not rely on implicit state check in mptcp_listen()
mptcp: ensure subflow is unhashed before cleaning the backlog
s390/qeth: Fix vipa deletion
octeontx-af: fix hardware timestamp configuration
net: dsa: sja1105: always enable the send_meta options
net: dsa: tag_sja1105: fix MAC DA patching from meta frames
net: Replace strlcpy with strscpy
pptp: Fix fib lookup calls.
mlxsw: spectrum_router: Fix an IS_ERR() vs NULL check
net/sched: act_pedit: Add size check for TCA_PEDIT_PARMS_EX
xsk: Honor SO_BINDTODEVICE on bind
ptp: Make max_phase_adjustment sysfs device attribute invisible when not supported
...
* Eager page splitting optimization for dirty logging, optionally
allowing for a VM to avoid the cost of hugepage splitting in the stage-2
fault path.
* Arm FF-A proxy for pKVM, allowing a pKVM host to safely interact with
services that live in the Secure world. pKVM intervenes on FF-A calls
to guarantee the host doesn't misuse memory donated to the hyp or a
pKVM guest.
* Support for running the split hypervisor with VHE enabled, known as
'hVHE' mode. This is extremely useful for testing the split
hypervisor on VHE-only systems, and paves the way for new use cases
that depend on having two TTBRs available at EL2.
* Generalized framework for configurable ID registers from userspace.
KVM/arm64 currently prevents arbitrary CPU feature set configuration
from userspace, but the intent is to relax this limitation and allow
userspace to select a feature set consistent with the CPU.
* Enable the use of Branch Target Identification (FEAT_BTI) in the
hypervisor.
* Use a separate set of pointer authentication keys for the hypervisor
when running in protected mode, as the host is untrusted at runtime.
* Ensure timer IRQs are consistently released in the init failure
paths.
* Avoid trapping CTR_EL0 on systems with Enhanced Virtualization Traps
(FEAT_EVT), as it is a register commonly read from userspace.
* Erratum workaround for the upcoming AmpereOne part, which has broken
hardware A/D state management.
RISC-V:
* Redirect AMO load/store misaligned traps to KVM guest
* Trap-n-emulate AIA in-kernel irqchip for KVM guest
* Svnapot support for KVM Guest
s390:
* New uvdevice secret API
* CMM selftest and fixes
* fix racy access to target CPU for diag 9c
x86:
* Fix missing/incorrect #GP checks on ENCLS
* Use standard mmu_notifier hooks for handling APIC access page
* Drop now unnecessary TR/TSS load after VM-Exit on AMD
* Print more descriptive information about the status of SEV and SEV-ES during
module load
* Add a test for splitting and reconstituting hugepages during and after
dirty logging
* Add support for CPU pinning in demand paging test
* Add support for AMD PerfMonV2, with a variety of cleanups and minor fixes
included along the way
* Add a "nx_huge_pages=never" option to effectively avoid creating NX hugepage
recovery threads (because nx_huge_pages=off can be toggled at runtime)
* Move handling of PAT out of MTRR code and dedup SVM+VMX code
* Fix output of PIC poll command emulation when there's an interrupt
* Add a maintainer's handbook to document KVM x86 processes, preferred coding
style, testing expectations, etc.
* Misc cleanups, fixes and comments
Generic:
* Miscellaneous bugfixes and cleanups
Selftests:
* Generate dependency files so that partial rebuilds work as expected
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Merge tag 'for-linus' of git://git.kernel.org/pub/scm/virt/kvm/kvm
Pull kvm updates from Paolo Bonzini:
"ARM64:
- Eager page splitting optimization for dirty logging, optionally
allowing for a VM to avoid the cost of hugepage splitting in the
stage-2 fault path.
- Arm FF-A proxy for pKVM, allowing a pKVM host to safely interact
with services that live in the Secure world. pKVM intervenes on
FF-A calls to guarantee the host doesn't misuse memory donated to
the hyp or a pKVM guest.
- Support for running the split hypervisor with VHE enabled, known as
'hVHE' mode. This is extremely useful for testing the split
hypervisor on VHE-only systems, and paves the way for new use cases
that depend on having two TTBRs available at EL2.
- Generalized framework for configurable ID registers from userspace.
KVM/arm64 currently prevents arbitrary CPU feature set
configuration from userspace, but the intent is to relax this
limitation and allow userspace to select a feature set consistent
with the CPU.
- Enable the use of Branch Target Identification (FEAT_BTI) in the
hypervisor.
- Use a separate set of pointer authentication keys for the
hypervisor when running in protected mode, as the host is untrusted
at runtime.
- Ensure timer IRQs are consistently released in the init failure
paths.
- Avoid trapping CTR_EL0 on systems with Enhanced Virtualization
Traps (FEAT_EVT), as it is a register commonly read from userspace.
- Erratum workaround for the upcoming AmpereOne part, which has
broken hardware A/D state management.
RISC-V:
- Redirect AMO load/store misaligned traps to KVM guest
- Trap-n-emulate AIA in-kernel irqchip for KVM guest
- Svnapot support for KVM Guest
s390:
- New uvdevice secret API
- CMM selftest and fixes
- fix racy access to target CPU for diag 9c
x86:
- Fix missing/incorrect #GP checks on ENCLS
- Use standard mmu_notifier hooks for handling APIC access page
- Drop now unnecessary TR/TSS load after VM-Exit on AMD
- Print more descriptive information about the status of SEV and
SEV-ES during module load
- Add a test for splitting and reconstituting hugepages during and
after dirty logging
- Add support for CPU pinning in demand paging test
- Add support for AMD PerfMonV2, with a variety of cleanups and minor
fixes included along the way
- Add a "nx_huge_pages=never" option to effectively avoid creating NX
hugepage recovery threads (because nx_huge_pages=off can be toggled
at runtime)
- Move handling of PAT out of MTRR code and dedup SVM+VMX code
- Fix output of PIC poll command emulation when there's an interrupt
- Add a maintainer's handbook to document KVM x86 processes,
preferred coding style, testing expectations, etc.
- Misc cleanups, fixes and comments
Generic:
- Miscellaneous bugfixes and cleanups
Selftests:
- Generate dependency files so that partial rebuilds work as
expected"
* tag 'for-linus' of git://git.kernel.org/pub/scm/virt/kvm/kvm: (153 commits)
Documentation/process: Add a maintainer handbook for KVM x86
Documentation/process: Add a label for the tip tree handbook's coding style
KVM: arm64: Fix misuse of KVM_ARM_VCPU_POWER_OFF bit index
RISC-V: KVM: Remove unneeded semicolon
RISC-V: KVM: Allow Svnapot extension for Guest/VM
riscv: kvm: define vcpu_sbi_ext_pmu in header
RISC-V: KVM: Expose IMSIC registers as attributes of AIA irqchip
RISC-V: KVM: Add in-kernel virtualization of AIA IMSIC
RISC-V: KVM: Expose APLIC registers as attributes of AIA irqchip
RISC-V: KVM: Add in-kernel emulation of AIA APLIC
RISC-V: KVM: Implement device interface for AIA irqchip
RISC-V: KVM: Skeletal in-kernel AIA irqchip support
RISC-V: KVM: Set kvm_riscv_aia_nr_hgei to zero
RISC-V: KVM: Add APLIC related defines
RISC-V: KVM: Add IMSIC related defines
RISC-V: KVM: Implement guest external interrupt line management
KVM: x86: Remove PRIx* definitions as they are solely for user space
s390/uv: Update query for secret-UVCs
s390/uv: replace scnprintf with sysfs_emit
s390/uvdevice: Add 'Lock Secret Store' UVC
...
Having "how to submit patches" in MAINTAINTERS seems out of place.
We have a whole section of documentation about it, duplication
is harmful and a lot of the text looks really out of date.
Sections 1, 2 and 4 look really, really old and not applicable
to the modern process.
Section 3 is obvious but also we have build bots now.
Section 5 is a bit outdated (diff -u?!). But I like the part
about factoring out shared code, so add that to process docs.
Section 6 is unnecessary?
Section 7 is covered by more appropriate docs.
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Reviewed-by: Randy Dunlap <rdunlap@infradead.org>
Reviewed-by: Dan Williams <dan.j.williams@intel.com>
Reviewed-by: Kees Cook <keescook@chromium.org>
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
Message-ID: <20230630171550.128296-1-kuba@kernel.org>
- Remove the deprecated rule to build *.dtbo from *.dts
- Refactor section mismatch detection in modpost
- Fix bogus ARM section mismatch detections
- Fix error of 'make gtags' with O= option
- Add Clang's target triple to KBUILD_CPPFLAGS to fix a build error with
the latest LLVM version
- Rebuild the built-in initrd when KBUILD_BUILD_TIMESTAMP is changed
- Ignore more compiler-generated symbols for kallsyms
- Fix 'make local*config' to handle the ${CONFIG_FOO} form in Makefiles
- Enable more kernel-doc warnings with W=2
- Refactor <linux/export.h> by generating KSYMTAB data by modpost
- Deprecate <asm/export.h> and <asm-generic/export.h>
- Remove the EXPORT_DATA_SYMBOL macro
- Move the check for static EXPORT_SYMBOL back to modpost, which makes
the build faster
- Re-implement CONFIG_TRIM_UNUSED_KSYMS with one-pass algorithm
- Warn missing MODULE_DESCRIPTION when building modules with W=1
- Make 'make clean' robust against too long argument error
- Exclude more objects from GCOV to fix CFI failures with GCOV
- Allow 'make modules_install' to install modules.builtin and
modules.builtin.modinfo even when CONFIG_MODULES is disabled
- Include modules.builtin and modules.builtin.modinfo in the linux-image
Debian package even when CONFIG_MODULES is disabled
- Revive "Entering directory" logging for the latest Make version
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Merge tag 'kbuild-v6.5' of git://git.kernel.org/pub/scm/linux/kernel/git/masahiroy/linux-kbuild
Pull Kbuild updates from Masahiro Yamada:
- Remove the deprecated rule to build *.dtbo from *.dts
- Refactor section mismatch detection in modpost
- Fix bogus ARM section mismatch detections
- Fix error of 'make gtags' with O= option
- Add Clang's target triple to KBUILD_CPPFLAGS to fix a build error
with the latest LLVM version
- Rebuild the built-in initrd when KBUILD_BUILD_TIMESTAMP is changed
- Ignore more compiler-generated symbols for kallsyms
- Fix 'make local*config' to handle the ${CONFIG_FOO} form in Makefiles
- Enable more kernel-doc warnings with W=2
- Refactor <linux/export.h> by generating KSYMTAB data by modpost
- Deprecate <asm/export.h> and <asm-generic/export.h>
- Remove the EXPORT_DATA_SYMBOL macro
- Move the check for static EXPORT_SYMBOL back to modpost, which makes
the build faster
- Re-implement CONFIG_TRIM_UNUSED_KSYMS with one-pass algorithm
- Warn missing MODULE_DESCRIPTION when building modules with W=1
- Make 'make clean' robust against too long argument error
- Exclude more objects from GCOV to fix CFI failures with GCOV
- Allow 'make modules_install' to install modules.builtin and
modules.builtin.modinfo even when CONFIG_MODULES is disabled
- Include modules.builtin and modules.builtin.modinfo in the
linux-image Debian package even when CONFIG_MODULES is disabled
- Revive "Entering directory" logging for the latest Make version
* tag 'kbuild-v6.5' of git://git.kernel.org/pub/scm/linux/kernel/git/masahiroy/linux-kbuild: (72 commits)
modpost: define more R_ARM_* for old distributions
kbuild: revive "Entering directory" for Make >= 4.4.1
kbuild: set correct abs_srctree and abs_objtree for package builds
scripts/mksysmap: Ignore prefixed KCFI symbols
kbuild: deb-pkg: remove the CONFIG_MODULES check in buildeb
kbuild: builddeb: always make modules_install, to install modules.builtin*
modpost: continue even with unknown relocation type
modpost: factor out Elf_Sym pointer calculation to section_rel()
modpost: factor out inst location calculation to section_rel()
kbuild: Disable GCOV for *.mod.o
kbuild: Fix CFI failures with GCOV
kbuild: make clean rule robust against too long argument error
script: modpost: emit a warning when the description is missing
kbuild: make modules_install copy modules.builtin(.modinfo)
linux/export.h: rename 'sec' argument to 'license'
modpost: show offset from symbol for section mismatch warnings
modpost: merge two similar section mismatch warnings
kbuild: implement CONFIG_TRIM_UNUSED_KSYMS without recursion
modpost: use null string instead of NULL pointer for default namespace
modpost: squash sym_update_namespace() into sym_add_exported()
...
Reword slightly now that all MAINTAINERS have access to the commands.
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Reviewed-by: Simon Horman <simon.horman@corigine.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
- Move handling of PAT out of MTRR code and dedup SVM+VMX code
- Fix output of PIC poll command emulation when there's an interrupt
- Fix a longstanding bug in the reporting of the number of entries returned by
KVM_GET_CPUID2
- Add a maintainer's handbook to document KVM x86 processes, preferred coding
style, testing expectations, etc.
- Misc cleanups
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Merge tag 'kvm-x86-misc-6.5' of https://github.com/kvm-x86/linux into HEAD
KVM x86 changes for 6.5:
* Move handling of PAT out of MTRR code and dedup SVM+VMX code
* Fix output of PIC poll command emulation when there's an interrupt
* Add a maintainer's handbook to document KVM x86 processes, preferred coding
style, testing expectations, etc.
* Misc cleanups
There are two new SoC families this time, and both appear fairly similar:
The Nuvoton MA35D1 and the STMicroelectronics STM32MP2 are both dual-core
Cortex-A35 based chips for the low-power industrial embedded market,
and they mark the first 64-bit product in a widely used family of 32-bit
Arm MCUs and SoCs.
The way into the kernel is completely different here: The team at ST has
a long history of working upstream with their STM32MP1 and other SoCs,
and they produced a complete port to arm64 together with the initial
announcement. Nuvoton also has multiple SoC product lines with current
or previous upstream support, but those are maintained by third parties
and are unrelated. The patch series from Nuvoton's Jacky Huang had to
go through many revisisions to get to this point and is still missing
a few drivers including the serial port for the moment.
The branch contains the devicetree files as well as all the code changes,
in order to have something that can be tested standalone.
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Merge tag 'soc-newsoc-6.5' of git://git.kernel.org/pub/scm/linux/kernel/git/soc/soc
Pull new ARM SoC support from Arnd Bergmann:
"There are two new SoC families this time, and both appear fairly
similar: The Nuvoton MA35D1 and the STMicroelectronics STM32MP2 are
both dual-core Cortex-A35 based chips for the low-power industrial
embedded market, and they mark the first 64-bit product in a widely
used family of 32-bit Arm MCUs and SoCs.
The way into the kernel is completely different here: The team at ST
has a long history of working upstream with their STM32MP1 and other
SoCs, and they produced a complete port to arm64 together with the
initial announcement. Nuvoton also has multiple SoC product lines with
current or previous upstream support, but those are maintained by
third parties and are unrelated. The patch series from Nuvoton's Jacky
Huang had to go through many revisisions to get to this point and is
still missing a few drivers including the serial port for the moment.
The branch contains the devicetree files as well as all the code
changes, in order to have something that can be tested standalone"
* tag 'soc-newsoc-6.5' of git://git.kernel.org/pub/scm/linux/kernel/git/soc/soc: (25 commits)
clk: nuvoton: Use clk_parent_data instead of string for parent clock
clk: nuvoton: Update all constant hex values to lowercase
clk: nuvoton: Add clk-ma35d1.h for driver extern functions
remoteproc: stm32: use correct format strings on 64-bit
MAINTAINERS: add entry for ARM/STM32 ARCHITECTURE
arm64: defconfig: enable ARCH_STM32 and STM32 serial driver
arm64: dts: st: add stm32mp257f-ev1 board support
dt-bindings: stm32: document stm32mp257f-ev1 board
arm64: dts: st: introduce stm32mp25 pinctrl files
arm64: dts: st: introduce stm32mp25 SoCs family
arm64: introduce STM32 family on Armv8 architecture
dt-bindings: stm32: add st,stm32mp25-syscfg compatible for syscon
pinctrl: stm32: add stm32mp257 pinctrl support
dt-bindings: pinctrl: stm32: support for stm32mp257 and additional packages
Documentation/process: add soc maintainer handbook
reset: RESET_NUVOTON_MA35D1 should depend on ARCH_MA35
reset: Add Nuvoton ma35d1 reset driver support
clk: nuvoton: Add clock driver for ma35d1 clock controller
arm64: dts: nuvoton: Add initial ma35d1 device tree
dt-bindings: serial: Document ma35d1 uart controller
...
- Some initial page-table documentation from Linus (the other Linus)
- Regression-handling documentation improvements from Thorsten
- Addition of kerneldoc documentation for the ERR_PTR() and related
macros from James Seo
...and the usual collection of fixes and updates.
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Merge tag 'docs-6.5' of git://git.lwn.net/linux
Pull documentation updates from Jonathan Corbet:
"It's been a relatively calm cycle in docsland. We do have:
- Some initial page-table documentation from Linus (the other Linus)
- Regression-handling documentation improvements from Thorsten
- Addition of kerneldoc documentation for the ERR_PTR() and related
macros from James Seo
... and the usual collection of fixes and updates"
* tag 'docs-6.5' of git://git.lwn.net/linux:
docs: consolidate storage interfaces
Documentation: update git configuration for Link: tag
Documentation: KVM: make corrections to vcpu-requests.rst
Documentation: KVM: make corrections to ppc-pv.rst
Documentation: KVM: make corrections to locking.rst
Documentation: KVM: make corrections to halt-polling.rst
Documentation: virt: correct location of haltpoll module params
Documentation/mm: Initial page table documentation
docs: crypto: async-tx-api: fix typo in struct name
docs/doc-guide: Clarify how to write tables
docs: handling-regressions: rework section about fixing procedures
docs: process: fix a typoed cross-reference
docs: submitting-patches: Discuss interleaved replies
MAINTAINERS: direct process doc changes to a dedicated ML
Documentation: core-api: Add error pointer functions to kernel-api
err.h: Add missing kerneldocs for error pointer functions
Documentation: conf.py: Add __force to c_id_attributes
docs: clarify KVM related kernel parameters' descriptions
docs: consolidate human interface subsystems
docs: admin-guide: Add information about intel_pstate active mode
- Remove repeated 'the' in comments
- Remove unused current_untag_mask()
- Document urgent tip branch timing
- Clean up MSR kernel-doc notation
- Clean up paravirt_ops doc
- Update Srivatsa S. Bhat's maintained areas
- Remove unused extern declaration acpi_copy_wakeup_routine()
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Merge tag 'x86_cleanups_for_6.5' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull x86 cleanups from Dave Hansen:
"As usual, these are all over the map. The biggest cluster is work from
Arnd to eliminate -Wmissing-prototype warnings:
- Address -Wmissing-prototype warnings
- Remove repeated 'the' in comments
- Remove unused current_untag_mask()
- Document urgent tip branch timing
- Clean up MSR kernel-doc notation
- Clean up paravirt_ops doc
- Update Srivatsa S. Bhat's maintained areas
- Remove unused extern declaration acpi_copy_wakeup_routine()"
* tag 'x86_cleanups_for_6.5' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: (22 commits)
x86/acpi: Remove unused extern declaration acpi_copy_wakeup_routine()
Documentation: virt: Clean up paravirt_ops doc
x86/mm: Remove unused current_untag_mask()
x86/mm: Remove repeated word in comments
x86/lib/msr: Clean up kernel-doc notation
x86/platform: Avoid missing-prototype warnings for OLPC
x86/mm: Add early_memremap_pgprot_adjust() prototype
x86/usercopy: Include arch_wb_cache_pmem() declaration
x86/vdso: Include vdso/processor.h
x86/mce: Add copy_mc_fragile_handle_tail() prototype
x86/fbdev: Include asm/fb.h as needed
x86/hibernate: Declare global functions in suspend.h
x86/entry: Add do_SYSENTER_32() prototype
x86/quirks: Include linux/pnp.h for arch_pnpbios_disabled()
x86/mm: Include asm/numa.h for set_highmem_pages_init()
x86: Avoid missing-prototype warnings for doublefault code
x86/fpu: Include asm/fpu/regset.h
x86: Add dummy prototype for mk_early_pgtbl_32()
x86/pci: Mark local functions as 'static'
x86/ftrace: Move prepare_ftrace_return prototype to header
...
Add a KVM x86 doc to the subsystem/maintainer handbook section to explain
how KVM x86 (currently) operates as a sub-subsystem, and to soapbox on
the rules and expectations for contributing to KVM x86.
Reviewed-by: Like Xu <likexu@tencent.com>
Link: https://lore.kernel.org/r/20230411171651.1067966-3-seanjc@google.com
Signed-off-by: Sean Christopherson <seanjc@google.com>
Add a label for the tip tree's "Coding style notes" so that a forthcoming
KVM x86 handbook can reference/piggyback the tip tree's preferred coding
style.
Link: https://lore.kernel.org/r/20230411171651.1067966-2-seanjc@google.com
Signed-off-by: Sean Christopherson <seanjc@google.com>
This basically rewrites the 'Prioritize work on fixing regressions'
section of Documentation/process/handling-regressions.rst for various
reasons. Among them: some things were too demanding, some didn't align
well with the usual workflows, and some apparently were not clear enough
-- and of course a few things were missing that would be good to have in
there.
Linus for example recently stated that regressions introduced during the
past year should be handled similarly to regressions from the current
cycle, if it's a clear fix with no semantic subtlety. His exact
wording[1] didn't fit well into the text structure, but the author tried
to stick close to the apparent intention.
It was a noble goal from the original author to state "[prevent
situations that might force users to] continue running an outdated and
thus potentially insecure kernel version for more than two weeks after a
regression's culprit was identified"; this directly led to the goal "fix
regression in mainline within one week, if the issue made it into a
stable/longterm kernel", because the stable team needs time to pick up
and prepare a new release. But apparently all that was a bit too
demanding.
That "one week" target for example doesn't align well with the usual
habits of the subsystem maintainers, which normally send their fixes to
Linus once a week; and it doesn't align too well with stable/longterm
releases either, which often enter a -rc phase on Mondays or Tuesdays
and then are released two to three days later. And asking developers to
create, review, and mainline fixes within one week might be too much to
ask for in general. Hence tone the general goal down to three weeks and
use an approach that better aligns with the usual merging and release
habits.
While at it, also make the rules of thumb a bit easier to follow by
grouping them by topic (e.g. generic things, timing, procedures, ...).
Also add text for a few cases where recent discussions showed they need
covering. Among them are multiple points that better explain the
relations to stable and longterm kernels and the team that manages them;
they and the group seperators are the primary reason why this whole
section sadly grew somewhat in the rewrite.
The group about those relations led to one addition the author came up
with without any precedent from Linus: the text now tells developers to
add a stable tag for any regression that made it into a proper mainline
release during the past 12 months. This is meant to ensure the stable
team will definitely notice any fixes for recent regressions. That
includes those introduced shortly before a new mainline release and
found right after it; without such a rule the stable team might miss the
fix, which then would only reach users after weeks or months with later
releases.
Note, the aspect "Do not consider regressions from the current cycle as
something that can wait till the cycle's end [...]" might look like an
addition, but was kinda was in the old text as well -- but only
indirectly. That apparently was too subtle, as many developers seem to
assume waiting till the end of the cycle is fine (even for build
fixes).
In practice this was especially problematic when a cause of a regression
made it into a proper release (either directly or through a backport). A
revert performed by Linus shortly before the 6.3 release illustrated
that[2], as the developer of the culprit had been willing to revert the
culprit about three weeks earlier already -- but didn't do so when a fix
came into sight and a maintainer suggested it can wait. Due to that the
issue in the end plagued users of 6.2.y at least two weeks longer than
necessary, as the fix in the end didn't become ready in time. This issue
in fact could have been resolved one or two additional weeks earlier, if
the developer had reverted the culprit shortly after it had been
identified (which even the old version of the text suggest to do in such
cases).
[1] https://lore.kernel.org/all/CAHk-=wis_qQy4oDNynNKi5b7Qhosmxtoj1jxo5wmB6SRUwQUBQ@mail.gmail.com/
[2] https://lore.kernel.org/all/CAHk-=wgD98pmSK3ZyHk_d9kZ2bhgN6DuNZMAJaV0WTtbkf=RDw@mail.gmail.com/
CC: Linus Torvalds <torvalds@linux-foundation.org>
CC: Greg KH <gregkh@linuxfoundation.org>
CC: Lukas Bulwahn <lukas.bulwahn@gmail.com>
Signed-off-by: Thorsten Leemhuis <linux@leemhuis.info>
Acked-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Link: https://lore.kernel.org/r/6971680941a5b7b9cb0c2839c75b5cc4ddb2d162.1684139586.git.linux@leemhuis.info
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
Arnd suggested that adding a maintainer handbook for the SoC "subsystem"
would be helpful in trying to bring on board maintainers for the various
new platforms cropping up in RISC-V land.
Add a document briefly describing the role of the SoC subsystem and some
basic advice for (new) platform maintainers.
Suggested-by: Arnd Bergmann <arnd@arndb.de>
Reviewed-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Signed-off-by: Conor Dooley <conor.dooley@microchip.com>
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
This is the first upgrade to the Rust toolchain since the initial Rust
merge, from 1.62.0 to 1.68.2 (i.e. the latest).
# Context
The kernel currently supports only a single Rust version [1] (rather
than a minimum) given our usage of some "unstable" Rust features [2]
which do not promise backwards compatibility.
The goal is to reach a point where we can declare a minimum version for
the toolchain. For instance, by waiting for some of the features to be
stabilized. Therefore, the first minimum Rust version that the kernel
will support is "in the future".
# Upgrade policy
Given we will eventually need to reach that minimum version, it would be
ideal to upgrade the compiler from time to time to be as close as
possible to that goal and find any issues sooner. In the extreme, we
could upgrade as soon as a new Rust release is out. Of course, upgrading
so often is in stark contrast to what one normally would need for GCC
and LLVM, especially given the release schedule: 6 weeks for Rust vs.
half a year for LLVM and a year for GCC.
Having said that, there is no particular advantage to updating slowly
either: kernel developers in "stable" distributions are unlikely to be
able to use their distribution-provided Rust toolchain for the kernel
anyway [3]. Instead, by routinely upgrading to the latest instead,
kernel developers using Linux distributions that track the latest Rust
release may be able to use those rather than Rust-provided ones,
especially if their package manager allows to pin / hold back /
downgrade the version for some days during windows where the version may
not match. For instance, Arch, Fedora, Gentoo and openSUSE all provide
and track the latest version of Rust as they get released every 6 weeks.
Then, when the minimum version is reached, we will stop upgrading and
decide how wide the window of support will be. For instance, a year of
Rust versions. We will probably want to start small, and then widen it
over time, just like the kernel did originally for LLVM, see commit
3519c4d6e0 ("Documentation: add minimum clang/llvm version").
# Unstable features stabilized
This upgrade allows us to remove the following unstable features since
they were stabilized:
- `feature(explicit_generic_args_with_impl_trait)` (1.63).
- `feature(core_ffi_c)` (1.64).
- `feature(generic_associated_types)` (1.65).
- `feature(const_ptr_offset_from)` (1.65, *).
- `feature(bench_black_box)` (1.66, *).
- `feature(pin_macro)` (1.68).
The ones marked with `*` apply only to our old `rust` branch, not
mainline yet, i.e. only for code that we may potentially upstream.
With this patch applied, the only unstable feature allowed to be used
outside the `kernel` crate is `new_uninit`, though other code to be
upstreamed may increase the list.
Please see [2] for details.
# Other required changes
Since 1.63, `rustdoc` triggers the `broken_intra_doc_links` lint for
links pointing to exported (`#[macro_export]`) `macro_rules`. An issue
was opened upstream [4], but it turns out it is intended behavior. For
the moment, just add an explicit reference for each link. Later we can
revisit this if `rustdoc` removes the compatibility measure.
Nevertheless, this was helpful to discover a link that was pointing to
the wrong place unintentionally. Since that one was actually wrong, it
is fixed in a previous commit independently.
Another change was the addition of `cfg(no_rc)` and `cfg(no_sync)` in
upstream [5], thus remove our original changes for that.
Similarly, upstream now tests that it compiles successfully with
`#[cfg(not(no_global_oom_handling))]` [6], which allow us to get rid
of some changes, such as an `#[allow(dead_code)]`.
In addition, remove another `#[allow(dead_code)]` due to new uses
within the standard library.
Finally, add `try_extend_trusted` and move the code in `spec_extend.rs`
since upstream moved it for the infallible version.
# `alloc` upgrade and reviewing
There are a large amount of changes, but the vast majority of them are
due to our `alloc` fork being upgraded at once.
There are two kinds of changes to be aware of: the ones coming from
upstream, which we should follow as closely as possible, and the updates
needed in our added fallible APIs to keep them matching the newer
infallible APIs coming from upstream.
Instead of taking a look at the diff of this patch, an alternative
approach is reviewing a diff of the changes between upstream `alloc` and
the kernel's. This allows to easily inspect the kernel additions only,
especially to check if the fallible methods we already have still match
the infallible ones in the new version coming from upstream.
Another approach is reviewing the changes introduced in the additions in
the kernel fork between the two versions. This is useful to spot
potentially unintended changes to our additions.
To apply these approaches, one may follow steps similar to the following
to generate a pair of patches that show the differences between upstream
Rust and the kernel (for the subset of `alloc` we use) before and after
applying this patch:
# Get the difference with respect to the old version.
git -C rust checkout $(linux/scripts/min-tool-version.sh rustc)
git -C linux ls-tree -r --name-only HEAD -- rust/alloc |
cut -d/ -f3- |
grep -Fv README.md |
xargs -IPATH cp rust/library/alloc/src/PATH linux/rust/alloc/PATH
git -C linux diff --patch-with-stat --summary -R > old.patch
git -C linux restore rust/alloc
# Apply this patch.
git -C linux am rust-upgrade.patch
# Get the difference with respect to the new version.
git -C rust checkout $(linux/scripts/min-tool-version.sh rustc)
git -C linux ls-tree -r --name-only HEAD -- rust/alloc |
cut -d/ -f3- |
grep -Fv README.md |
xargs -IPATH cp rust/library/alloc/src/PATH linux/rust/alloc/PATH
git -C linux diff --patch-with-stat --summary -R > new.patch
git -C linux restore rust/alloc
Now one may check the `new.patch` to take a look at the additions (first
approach) or at the difference between those two patches (second
approach). For the latter, a side-by-side tool is recommended.
Link: https://rust-for-linux.com/rust-version-policy [1]
Link: https://github.com/Rust-for-Linux/linux/issues/2 [2]
Link: https://lore.kernel.org/rust-for-linux/CANiq72mT3bVDKdHgaea-6WiZazd8Mvurqmqegbe5JZxVyLR8Yg@mail.gmail.com/ [3]
Link: https://github.com/rust-lang/rust/issues/106142 [4]
Link: https://github.com/rust-lang/rust/pull/89891 [5]
Link: https://github.com/rust-lang/rust/pull/98652 [6]
Reviewed-by: Björn Roy Baron <bjorn3_gh@protonmail.com>
Reviewed-by: Gary Guo <gary@garyguo.net>
Reviewed-By: Martin Rodriguez Reboredo <yakoyoku@gmail.com>
Tested-by: Ariel Miculas <amiculas@cisco.com>
Tested-by: David Gow <davidgow@google.com>
Tested-by: Boqun Feng <boqun.feng@gmail.com>
Link: https://lore.kernel.org/r/20230418214347.324156-4-ojeda@kernel.org
[ Removed `feature(core_ffi_c)` from `uapi` ]
Signed-off-by: Miguel Ojeda <ojeda@kernel.org>
tar is used to build the kernel with CONFIG_IKHEADERS.
GNU tar 1.28 or later is required.
Signed-off-by: Masahiro Yamada <masahiroy@kernel.org>
Reviewed-by: Nicolas Schier <nicolas@fjasle.eu>
We had a good run, but after 4 weeks of use we heard someone
asking about pw-bot commands. Let's explain its existence
in the docs. It's not a complete documentation but hopefully
it's enough for the casual contributor. The project and scope
are in flux so the details would likely become out of date,
if we were to document more in depth.
Link: https://lore.kernel.org/all/20230522140057.GB18381@nucnuc.mle/
Reviewed-by: Andrew Lunn <andrew@lunn.ch>
Reviewed-by: Simon Horman <simon.horman@corigine.com>
Link: https://lore.kernel.org/r/20230522230903.1853151-1-kuba@kernel.org
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Kernel build now uses the gtags "-C (--directory)" option, available
since GNU GLOBAL v6.6.5. Update the documentation accordingly.
Signed-off-by: Ahmed S. Darwish <darwi@linutronix.de>
Cc: <stable@vger.kernel.org>
Link: https://lists.gnu.org/archive/html/info-global/2020-09/msg00000.html
Signed-off-by: Masahiro Yamada <masahiroy@kernel.org>
Top-posting has been strongly discouraged in Linux development, but this
was actually not written anywhere in the common documentation about
sending patches and replying to reviews. Add a section about trimming
and interleaved replies.
Acked-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Kees Cook <keescook@chromium.org>
Reviewed-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
Link: https://lore.kernel.org/r/20230511184131.gonna.399-kees@kernel.org
- updates to scripts/gdb from Glenn Washburn
- kexec cleanups from Bjorn Helgaas
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Merge tag 'mm-nonmm-stable-2023-04-27-16-01' of git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm
Pull non-MM updates from Andrew Morton:
"Mainly singleton patches all over the place.
Series of note are:
- updates to scripts/gdb from Glenn Washburn
- kexec cleanups from Bjorn Helgaas"
* tag 'mm-nonmm-stable-2023-04-27-16-01' of git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm: (50 commits)
mailmap: add entries for Paul Mackerras
libgcc: add forward declarations for generic library routines
mailmap: add entry for Oleksandr
ocfs2: reduce ioctl stack usage
fs/proc: add Kthread flag to /proc/$pid/status
ia64: fix an addr to taddr in huge_pte_offset()
checkpatch: introduce proper bindings license check
epoll: rename global epmutex
scripts/gdb: add GDB convenience functions $lx_dentry_name() and $lx_i_dentry()
scripts/gdb: create linux/vfs.py for VFS related GDB helpers
uapi/linux/const.h: prefer ISO-friendly __typeof__
delayacct: track delays from IRQ/SOFTIRQ
scripts/gdb: timerlist: convert int chunks to str
scripts/gdb: print interrupts
scripts/gdb: raise error with reduced debugging information
scripts/gdb: add a Radix Tree Parser
lib/rbtree: use '+' instead of '|' for setting color.
proc/stat: remove arch_idle_time()
checkpatch: check for misuse of the link tags
checkpatch: allow Closes tags with links
...
Here is the "big" set of char/misc and other driver subsystems for
6.4-rc1.
It's pretty big, but due to the removal of pcmcia drivers, almost breaks
even for number of lines added vs. removed, a nice change.
Included in here are:
- removal of unused PCMCIA drivers (finally!)
- Interconnect driver updates and additions
- Lots of IIO driver updates and additions
- MHI driver updates
- Coresight driver updates
- NVMEM driver updates, which required some OF updates
- W1 driver updates and a new maintainer to manage the subsystem
- FPGA driver updates
- New driver subsystem, CDX, for AMD systems
- lots of other small driver updates and additions
All of these have been in linux-next for a while with no reported
issues.
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Merge tag 'char-misc-6.4-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc
Pull char/misc drivers updates from Greg KH:
"Here is the "big" set of char/misc and other driver subsystems for
6.4-rc1.
It's pretty big, but due to the removal of pcmcia drivers, almost
breaks even for number of lines added vs. removed, a nice change.
Included in here are:
- removal of unused PCMCIA drivers (finally!)
- Interconnect driver updates and additions
- Lots of IIO driver updates and additions
- MHI driver updates
- Coresight driver updates
- NVMEM driver updates, which required some OF updates
- W1 driver updates and a new maintainer to manage the subsystem
- FPGA driver updates
- New driver subsystem, CDX, for AMD systems
- lots of other small driver updates and additions
All of these have been in linux-next for a while with no reported
issues"
* tag 'char-misc-6.4-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc: (196 commits)
mcb-lpc: Reallocate memory region to avoid memory overlapping
mcb-pci: Reallocate memory region to avoid memory overlapping
mcb: Return actual parsed size when reading chameleon table
kernel/configs: Drop Android config fragments
virt: acrn: Replace obsolete memalign() with posix_memalign()
spmi: Add a check for remove callback when removing a SPMI driver
spmi: fix W=1 kernel-doc warnings
spmi: mtk-pmif: Drop of_match_ptr for ID table
spmi: pmic-arb: Convert to platform remove callback returning void
spmi: mtk-pmif: Convert to platform remove callback returning void
spmi: hisi-spmi-controller: Convert to platform remove callback returning void
w1: gpio: remove unnecessary ENOMEM messages
w1: omap-hdq: remove unnecessary ENOMEM messages
w1: omap-hdq: add SPDX tag
w1: omap-hdq: allow compile testing
w1: matrox: remove unnecessary ENOMEM messages
w1: matrox: use inline over __inline__
w1: matrox: switch from asm to linux header
w1: ds2482: do not use assignment in if condition
w1: ds2482: drop unnecessary header
...
Core
----
- Introduce a config option to tweak MAX_SKB_FRAGS. Increasing the
default value allows for better BIG TCP performances.
- Reduce compound page head access for zero-copy data transfers.
- RPS/RFS improvements, avoiding unneeded NET_RX_SOFTIRQ when possible.
- Threaded NAPI improvements, adding defer skb free support and unneeded
softirq avoidance.
- Address dst_entry reference count scalability issues, via false
sharing avoidance and optimize refcount tracking.
- Add lockless accesses annotation to sk_err[_soft].
- Optimize again the skb struct layout.
- Extends the skb drop reasons to make it usable by multiple
subsystems.
- Better const qualifier awareness for socket casts.
BPF
---
- Add skb and XDP typed dynptrs which allow BPF programs for more
ergonomic and less brittle iteration through data and variable-sized
accesses.
- Add a new BPF netfilter program type and minimal support to hook
BPF programs to netfilter hooks such as prerouting or forward.
- Add more precise memory usage reporting for all BPF map types.
- Adds support for using {FOU,GUE} encap with an ipip device operating
in collect_md mode and add a set of BPF kfuncs for controlling encap
params.
- Allow BPF programs to detect at load time whether a particular kfunc
exists or not, and also add support for this in light skeleton.
- Bigger batch of BPF verifier improvements to prepare for upcoming BPF
open-coded iterators allowing for less restrictive looping capabilities.
- Rework RCU enforcement in the verifier, add kptr_rcu and enforce BPF
programs to NULL-check before passing such pointers into kfunc.
- Add support for kptrs in percpu hashmaps, percpu LRU hashmaps and in
local storage maps.
- Enable RCU semantics for task BPF kptrs and allow referenced kptr
tasks to be stored in BPF maps.
- Add support for refcounted local kptrs to the verifier for allowing
shared ownership, useful for adding a node to both the BPF list and
rbtree.
- Add BPF verifier support for ST instructions in convert_ctx_access()
which will help new -mcpu=v4 clang flag to start emitting them.
- Add ARM32 USDT support to libbpf.
- Improve bpftool's visual program dump which produces the control
flow graph in a DOT format by adding C source inline annotations.
Protocols
---------
- IPv4: Allow adding to IPv4 address a 'protocol' tag. Such value
indicates the provenance of the IP address.
- IPv6: optimize route lookup, dropping unneeded R/W lock acquisition.
- Add the handshake upcall mechanism, allowing the user-space
to implement generic TLS handshake on kernel's behalf.
- Bridge: support per-{Port, VLAN} neighbor suppression, increasing
resilience to nodes failures.
- SCTP: add support for Fair Capacity and Weighted Fair Queueing
schedulers.
- MPTCP: delay first subflow allocation up to its first usage. This
will allow for later better LSM interaction.
- xfrm: Remove inner/outer modes from input/output path. These are
not needed anymore.
- WiFi:
- reduced neighbor report (RNR) handling for AP mode
- HW timestamping support
- support for randomized auth/deauth TA for PASN privacy
- per-link debugfs for multi-link
- TC offload support for mac80211 drivers
- mac80211 mesh fast-xmit and fast-rx support
- enable Wi-Fi 7 (EHT) mesh support
Netfilter
---------
- Add nf_tables 'brouting' support, to force a packet to be routed
instead of being bridged.
- Update bridge netfilter and ovs conntrack helpers to handle
IPv6 Jumbo packets properly, i.e. fetch the packet length
from hop-by-hop extension header. This is needed for BIT TCP
support.
- The iptables 32bit compat interface isn't compiled in by default
anymore.
- Move ip(6)tables builtin icmp matches to the udptcp one.
This has the advantage that icmp/icmpv6 match doesn't load the
iptables/ip6tables modules anymore when iptables-nft is used.
- Extended netlink error report for netdevice in flowtables and
netdev/chains. Allow for incrementally add/delete devices to netdev
basechain. Allow to create netdev chain without device.
Driver API
----------
- Remove redundant Device Control Error Reporting Enable, as PCI core
has already error reporting enabled at enumeration time.
- Move Multicast DB netlink handlers to core, allowing devices other
then bridge to use them.
- Allow the page_pool to directly recycle the pages from safely
localized NAPI.
- Implement lockless TX queue stop/wake combo macros, allowing for
further code de-duplication and sanitization.
- Add YNL support for user headers and struct attrs.
- Add partial YNL specification for devlink.
- Add partial YNL specification for ethtool.
- Add tc-mqprio and tc-taprio support for preemptible traffic classes.
- Add tx push buf len param to ethtool, specifies the maximum number
of bytes of a transmitted packet a driver can push directly to the
underlying device.
- Add basic LED support for switch/phy.
- Add NAPI documentation, stop relaying on external links.
- Convert dsa_master_ioctl() to netdev notifier. This is a preparatory
work to make the hardware timestamping layer selectable by user
space.
- Add transceiver support and improve the error messages for CAN-FD
controllers.
New hardware / drivers
----------------------
- Ethernet:
- AMD/Pensando core device support
- MediaTek MT7981 SoC
- MediaTek MT7988 SoC
- Broadcom BCM53134 embedded switch
- Texas Instruments CPSW9G ethernet switch
- Qualcomm EMAC3 DWMAC ethernet
- StarFive JH7110 SoC
- NXP CBTX ethernet PHY
- WiFi:
- Apple M1 Pro/Max devices
- RealTek rtl8710bu/rtl8188gu
- RealTek rtl8822bs, rtl8822cs and rtl8821cs SDIO chipset
- Bluetooth:
- Realtek RTL8821CS, RTL8851B, RTL8852BS
- Mediatek MT7663, MT7922
- NXP w8997
- Actions Semi ATS2851
- QTI WCN6855
- Marvell 88W8997
- Can:
- STMicroelectronics bxcan stm32f429
Drivers
-------
- Ethernet NICs:
- Intel (1G, icg):
- add tracking and reporting of QBV config errors.
- add support for configuring max SDU for each Tx queue.
- Intel (100G, ice):
- refactor mailbox overflow detection to support Scalable IOV
- GNSS interface optimization
- Intel (i40e):
- support XDP multi-buffer
- nVidia/Mellanox:
- add the support for linux bridge multicast offload
- enable TC offload for egress and engress MACVLAN over bond
- add support for VxLAN GBP encap/decap flows offload
- extend packet offload to fully support libreswan
- support tunnel mode in mlx5 IPsec packet offload
- extend XDP multi-buffer support
- support MACsec VLAN offload
- add support for dynamic msix vectors allocation
- drop RX page_cache and fully use page_pool
- implement thermal zone to report NIC temperature
- Netronome/Corigine:
- add support for multi-zone conntrack offload
- Solarflare/Xilinx:
- support offloading TC VLAN push/pop actions to the MAE
- support TC decap rules
- support unicast PTP
- Other NICs:
- Broadcom (bnxt): enforce software based freq adjustments only
on shared PHC NIC
- RealTek (r8169): refactor to addess ASPM issues during NAPI poll.
- Micrel (lan8841): add support for PTP_PF_PEROUT
- Cadence (macb): enable PTP unicast
- Engleder (tsnep): add XDP socket zero-copy support
- virtio-net: implement exact header length guest feature
- veth: add page_pool support for page recycling
- vxlan: add MDB data path support
- gve: add XDP support for GQI-QPL format
- geneve: accept every ethertype
- macvlan: allow some packets to bypass broadcast queue
- mana: add support for jumbo frame
- Ethernet high-speed switches:
- Microchip (sparx5): Add support for TC flower templates.
- Ethernet embedded switches:
- Broadcom (b54):
- configure 6318 and 63268 RGMII ports
- Marvell (mv88e6xxx):
- faster C45 bus scan
- Microchip:
- lan966x:
- add support for IS1 VCAP
- better TX/RX from/to CPU performances
- ksz9477: add ETS Qdisc support
- ksz8: enhance static MAC table operations and error handling
- sama7g5: add PTP capability
- NXP (ocelot):
- add support for external ports
- add support for preemptible traffic classes
- Texas Instruments:
- add CPSWxG SGMII support for J7200 and J721E
- Intel WiFi (iwlwifi):
- preparation for Wi-Fi 7 EHT and multi-link support
- EHT (Wi-Fi 7) sniffer support
- hardware timestamping support for some devices/firwmares
- TX beacon protection on newer hardware
- Qualcomm 802.11ax WiFi (ath11k):
- MU-MIMO parameters support
- ack signal support for management packets
- RealTek WiFi (rtw88):
- SDIO bus support
- better support for some SDIO devices
(e.g. MAC address from efuse)
- RealTek WiFi (rtw89):
- HW scan support for 8852b
- better support for 6 GHz scanning
- support for various newer firmware APIs
- framework firmware backwards compatibility
- MediaTek WiFi (mt76):
- P2P support
- mesh A-MSDU support
- EHT (Wi-Fi 7) support
- coredump support
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
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Merge tag 'net-next-6.4' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net-next
Pull networking updates from Paolo Abeni:
"Core:
- Introduce a config option to tweak MAX_SKB_FRAGS. Increasing the
default value allows for better BIG TCP performances
- Reduce compound page head access for zero-copy data transfers
- RPS/RFS improvements, avoiding unneeded NET_RX_SOFTIRQ when
possible
- Threaded NAPI improvements, adding defer skb free support and
unneeded softirq avoidance
- Address dst_entry reference count scalability issues, via false
sharing avoidance and optimize refcount tracking
- Add lockless accesses annotation to sk_err[_soft]
- Optimize again the skb struct layout
- Extends the skb drop reasons to make it usable by multiple
subsystems
- Better const qualifier awareness for socket casts
BPF:
- Add skb and XDP typed dynptrs which allow BPF programs for more
ergonomic and less brittle iteration through data and
variable-sized accesses
- Add a new BPF netfilter program type and minimal support to hook
BPF programs to netfilter hooks such as prerouting or forward
- Add more precise memory usage reporting for all BPF map types
- Adds support for using {FOU,GUE} encap with an ipip device
operating in collect_md mode and add a set of BPF kfuncs for
controlling encap params
- Allow BPF programs to detect at load time whether a particular
kfunc exists or not, and also add support for this in light
skeleton
- Bigger batch of BPF verifier improvements to prepare for upcoming
BPF open-coded iterators allowing for less restrictive looping
capabilities
- Rework RCU enforcement in the verifier, add kptr_rcu and enforce
BPF programs to NULL-check before passing such pointers into kfunc
- Add support for kptrs in percpu hashmaps, percpu LRU hashmaps and
in local storage maps
- Enable RCU semantics for task BPF kptrs and allow referenced kptr
tasks to be stored in BPF maps
- Add support for refcounted local kptrs to the verifier for allowing
shared ownership, useful for adding a node to both the BPF list and
rbtree
- Add BPF verifier support for ST instructions in
convert_ctx_access() which will help new -mcpu=v4 clang flag to
start emitting them
- Add ARM32 USDT support to libbpf
- Improve bpftool's visual program dump which produces the control
flow graph in a DOT format by adding C source inline annotations
Protocols:
- IPv4: Allow adding to IPv4 address a 'protocol' tag. Such value
indicates the provenance of the IP address
- IPv6: optimize route lookup, dropping unneeded R/W lock acquisition
- Add the handshake upcall mechanism, allowing the user-space to
implement generic TLS handshake on kernel's behalf
- Bridge: support per-{Port, VLAN} neighbor suppression, increasing
resilience to nodes failures
- SCTP: add support for Fair Capacity and Weighted Fair Queueing
schedulers
- MPTCP: delay first subflow allocation up to its first usage. This
will allow for later better LSM interaction
- xfrm: Remove inner/outer modes from input/output path. These are
not needed anymore
- WiFi:
- reduced neighbor report (RNR) handling for AP mode
- HW timestamping support
- support for randomized auth/deauth TA for PASN privacy
- per-link debugfs for multi-link
- TC offload support for mac80211 drivers
- mac80211 mesh fast-xmit and fast-rx support
- enable Wi-Fi 7 (EHT) mesh support
Netfilter:
- Add nf_tables 'brouting' support, to force a packet to be routed
instead of being bridged
- Update bridge netfilter and ovs conntrack helpers to handle IPv6
Jumbo packets properly, i.e. fetch the packet length from
hop-by-hop extension header. This is needed for BIT TCP support
- The iptables 32bit compat interface isn't compiled in by default
anymore
- Move ip(6)tables builtin icmp matches to the udptcp one. This has
the advantage that icmp/icmpv6 match doesn't load the
iptables/ip6tables modules anymore when iptables-nft is used
- Extended netlink error report for netdevice in flowtables and
netdev/chains. Allow for incrementally add/delete devices to netdev
basechain. Allow to create netdev chain without device
Driver API:
- Remove redundant Device Control Error Reporting Enable, as PCI core
has already error reporting enabled at enumeration time
- Move Multicast DB netlink handlers to core, allowing devices other
then bridge to use them
- Allow the page_pool to directly recycle the pages from safely
localized NAPI
- Implement lockless TX queue stop/wake combo macros, allowing for
further code de-duplication and sanitization
- Add YNL support for user headers and struct attrs
- Add partial YNL specification for devlink
- Add partial YNL specification for ethtool
- Add tc-mqprio and tc-taprio support for preemptible traffic classes
- Add tx push buf len param to ethtool, specifies the maximum number
of bytes of a transmitted packet a driver can push directly to the
underlying device
- Add basic LED support for switch/phy
- Add NAPI documentation, stop relaying on external links
- Convert dsa_master_ioctl() to netdev notifier. This is a
preparatory work to make the hardware timestamping layer selectable
by user space
- Add transceiver support and improve the error messages for CAN-FD
controllers
New hardware / drivers:
- Ethernet:
- AMD/Pensando core device support
- MediaTek MT7981 SoC
- MediaTek MT7988 SoC
- Broadcom BCM53134 embedded switch
- Texas Instruments CPSW9G ethernet switch
- Qualcomm EMAC3 DWMAC ethernet
- StarFive JH7110 SoC
- NXP CBTX ethernet PHY
- WiFi:
- Apple M1 Pro/Max devices
- RealTek rtl8710bu/rtl8188gu
- RealTek rtl8822bs, rtl8822cs and rtl8821cs SDIO chipset
- Bluetooth:
- Realtek RTL8821CS, RTL8851B, RTL8852BS
- Mediatek MT7663, MT7922
- NXP w8997
- Actions Semi ATS2851
- QTI WCN6855
- Marvell 88W8997
- Can:
- STMicroelectronics bxcan stm32f429
Drivers:
- Ethernet NICs:
- Intel (1G, icg):
- add tracking and reporting of QBV config errors
- add support for configuring max SDU for each Tx queue
- Intel (100G, ice):
- refactor mailbox overflow detection to support Scalable IOV
- GNSS interface optimization
- Intel (i40e):
- support XDP multi-buffer
- nVidia/Mellanox:
- add the support for linux bridge multicast offload
- enable TC offload for egress and engress MACVLAN over bond
- add support for VxLAN GBP encap/decap flows offload
- extend packet offload to fully support libreswan
- support tunnel mode in mlx5 IPsec packet offload
- extend XDP multi-buffer support
- support MACsec VLAN offload
- add support for dynamic msix vectors allocation
- drop RX page_cache and fully use page_pool
- implement thermal zone to report NIC temperature
- Netronome/Corigine:
- add support for multi-zone conntrack offload
- Solarflare/Xilinx:
- support offloading TC VLAN push/pop actions to the MAE
- support TC decap rules
- support unicast PTP
- Other NICs:
- Broadcom (bnxt): enforce software based freq adjustments only on
shared PHC NIC
- RealTek (r8169): refactor to addess ASPM issues during NAPI poll
- Micrel (lan8841): add support for PTP_PF_PEROUT
- Cadence (macb): enable PTP unicast
- Engleder (tsnep): add XDP socket zero-copy support
- virtio-net: implement exact header length guest feature
- veth: add page_pool support for page recycling
- vxlan: add MDB data path support
- gve: add XDP support for GQI-QPL format
- geneve: accept every ethertype
- macvlan: allow some packets to bypass broadcast queue
- mana: add support for jumbo frame
- Ethernet high-speed switches:
- Microchip (sparx5): Add support for TC flower templates
- Ethernet embedded switches:
- Broadcom (b54):
- configure 6318 and 63268 RGMII ports
- Marvell (mv88e6xxx):
- faster C45 bus scan
- Microchip:
- lan966x:
- add support for IS1 VCAP
- better TX/RX from/to CPU performances
- ksz9477: add ETS Qdisc support
- ksz8: enhance static MAC table operations and error handling
- sama7g5: add PTP capability
- NXP (ocelot):
- add support for external ports
- add support for preemptible traffic classes
- Texas Instruments:
- add CPSWxG SGMII support for J7200 and J721E
- Intel WiFi (iwlwifi):
- preparation for Wi-Fi 7 EHT and multi-link support
- EHT (Wi-Fi 7) sniffer support
- hardware timestamping support for some devices/firwmares
- TX beacon protection on newer hardware
- Qualcomm 802.11ax WiFi (ath11k):
- MU-MIMO parameters support
- ack signal support for management packets
- RealTek WiFi (rtw88):
- SDIO bus support
- better support for some SDIO devices (e.g. MAC address from
efuse)
- RealTek WiFi (rtw89):
- HW scan support for 8852b
- better support for 6 GHz scanning
- support for various newer firmware APIs
- framework firmware backwards compatibility
- MediaTek WiFi (mt76):
- P2P support
- mesh A-MSDU support
- EHT (Wi-Fi 7) support
- coredump support"
* tag 'net-next-6.4' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net-next: (2078 commits)
net: phy: hide the PHYLIB_LEDS knob
net: phy: marvell-88x2222: remove unnecessary (void*) conversions
tcp/udp: Fix memleaks of sk and zerocopy skbs with TX timestamp.
net: amd: Fix link leak when verifying config failed
net: phy: marvell: Fix inconsistent indenting in led_blink_set
lan966x: Don't use xdp_frame when action is XDP_TX
tsnep: Add XDP socket zero-copy TX support
tsnep: Add XDP socket zero-copy RX support
tsnep: Move skb receive action to separate function
tsnep: Add functions for queue enable/disable
tsnep: Rework TX/RX queue initialization
tsnep: Replace modulo operation with mask
net: phy: dp83867: Add led_brightness_set support
net: phy: Fix reading LED reg property
drivers: nfc: nfcsim: remove return value check of `dev_dir`
net: phy: dp83867: Remove unnecessary (void*) conversions
net: ethtool: coalesce: try to make user settings stick twice
net: mana: Check if netdev/napi_alloc_frag returns single page
net: mana: Rename mana_refill_rxoob and remove some empty lines
net: veth: add page_pool stats
...
still a fair amount going on, including:
- Reorganizing the architecture-specific documentation under
Documentation/arch. This makes the structure match the source directory
and helps to clean up the mess that is the top-level Documentation
directory a bit. This work creates the new directory and moves x86 and
most of the less-active architectures there. The current plan is to move
the rest of the architectures in 6.5, with the patches going through the
appropriate subsystem trees.
- Some more Spanish translations and maintenance of the Italian
translation.
- A new "Kernel contribution maturity model" document from Ted.
- A new tutorial on quickly building a trimmed kernel from Thorsten.
Plus the usual set of updates and fixes.
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Merge tag 'docs-6.4' of git://git.lwn.net/linux
Pull documentation updates from Jonathan Corbet:
"Commit volume in documentation is relatively low this time, but there
is still a fair amount going on, including:
- Reorganize the architecture-specific documentation under
Documentation/arch
This makes the structure match the source directory and helps to
clean up the mess that is the top-level Documentation directory a
bit. This work creates the new directory and moves x86 and most of
the less-active architectures there.
The current plan is to move the rest of the architectures in 6.5,
with the patches going through the appropriate subsystem trees.
- Some more Spanish translations and maintenance of the Italian
translation
- A new "Kernel contribution maturity model" document from Ted
- A new tutorial on quickly building a trimmed kernel from Thorsten
Plus the usual set of updates and fixes"
* tag 'docs-6.4' of git://git.lwn.net/linux: (47 commits)
media: Adjust column width for pdfdocs
media: Fix building pdfdocs
docs: clk: add documentation to log which clocks have been disabled
docs: trace: Fix typo in ftrace.rst
Documentation/process: always CC responsible lists
docs: kmemleak: adjust to config renaming
ELF: document some de-facto PT_* ABI quirks
Documentation: arm: remove stih415/stih416 related entries
docs: turn off "smart quotes" in the HTML build
Documentation: firmware: Clarify firmware path usage
docs/mm: Physical Memory: Fix grammar
Documentation: Add document for false sharing
dma-api-howto: typo fix
docs: move m68k architecture documentation under Documentation/arch/
docs: move parisc documentation under Documentation/arch/
docs: move ia64 architecture docs under Documentation/arch/
docs: Move arc architecture docs under Documentation/arch/
docs: move nios2 documentation under Documentation/arch/
docs: move openrisc documentation under Documentation/arch/
docs: move superh documentation under Documentation/arch/
...
The "Select the recipients for your patch" part about CC-ing mailing
lists is a bit vague and might be understood that only some lists should
be Cc-ed. That's not what most of the maintainers expect. For given
code, associated mailing list must always be CC-ed, because the list is
used for reviewing and testing patches. Example are the Devicetree
bindings patches, which are tested iff Devicetree mailing list is CC-ed.
Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Link: https://lore.kernel.org/r/20230413165501.47442-1-krzysztof.kozlowski@linaro.org
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
Since v6.3, checkpatch.pl now complains about the use of "Closes:" tags
followed by a link [1]. It also complains if a "Reported-by:" tag is
followed by a "Closes:" one [2].
As detailed in the first patch, this "Closes:" tag is used for a bit of
time, mainly by DRM and MPTCP subsystems. It is used by some bug trackers
to automate the closure of issues when a patch is accepted. It is even
planned to use this tag with bugzilla.kernel.org [3].
The first patch updates the documentation to explain what is this
"Closes:" tag and how/when to use it. The second patch modifies
checkpatch.pl to stop complaining about it.
The DRM maintainers and their mailing list have been added in Cc as they
are probably interested by these two patches as well.
[1] https://lore.kernel.org/all/3b036087d80b8c0e07a46a1dbaaf4ad0d018f8d5.1674217480.git.linux@leemhuis.info/
[2] https://lore.kernel.org/all/bb5dfd55ea2026303ab2296f4a6df3da7dd64006.1674217480.git.linux@leemhuis.info/
[3] https://lore.kernel.org/linux-doc/20230315181205.f3av7h6owqzzw64p@meerkat.local/
This patch (of 5):
Making sure a bug tracker is up to date is not an easy task. For example,
a first version of a patch fixing a tracked issue can be sent a long time
after having created the issue. But also, it can take some time to have
this patch accepted upstream in its final form. When it is done, someone
-- probably not the person who accepted the patch -- has to remember about
closing the corresponding issue.
This task of closing and tracking the patch can be done automatically by
bug trackers like GitLab [1], GitHub [2] and hopefully soon [3]
bugzilla.kernel.org when the appropriated tag is used. The two first ones
accept multiple tags but it is probably better to pick one.
According to commit 76f381bb77 ("checkpatch: warn when unknown tags are used for links"),
the "Closes" tag seems to have been used in the past by a few people and
it is supported by popular bug trackers. Here is how it has been used in
the past:
$ git log --no-merges --format=email -P --grep='^Closes: http' | \
grep '^Closes: http' | cut -d/ -f3-5 | sort | uniq -c | sort -rn
391 gitlab.freedesktop.org/drm/intel
79 github.com/multipath-tcp/mptcp_net-next
8 gitlab.freedesktop.org/drm/msm
3 gitlab.freedesktop.org/drm/amd
2 gitlab.freedesktop.org/mesa/mesa
1 patchwork.freedesktop.org/series/73320
1 gitlab.freedesktop.org/lima/linux
1 gitlab.freedesktop.org/drm/nouveau
1 github.com/ClangBuiltLinux/linux
1 bugzilla.netfilter.org/show_bug.cgi?id=1579
1 bugzilla.netfilter.org/show_bug.cgi?id=1543
1 bugzilla.netfilter.org/show_bug.cgi?id=1436
1 bugzilla.netfilter.org/show_bug.cgi?id=1427
1 bugs.debian.org/625804
Likely here, the "Closes" tag was only properly used with GitLab and
GitHub. We can also see that it has been used quite a few times (and
still used recently) and this is then not a "random tag that makes no
sense" like it was the case with "BugLink" recently [4]. It has also been
misused but that was a long time ago, when it was common to use many
different random tags.
checkpatch.pl script should then stop complaining about this "Closes" tag.
As suggested by Thorsten [5], if this tag is accepted, it should first be
described in the documentation. This is what is done here in this patch.
To avoid confusion, the "Closes" should be used with any public bug
report. No need to check if the underlying bug tracker supports
automations. Having this tag with any kind of public bug reports allows
bots like regzbot to clearly identify patches fixing a specific bug and
avoid false-positives, e.g. patches mentioning it is related to an issue
but not fixing it. As suggested by Thorsten [6] again, if we follow the
same logic, the "Closes" tag should then be used after a "Reported-by"
one.
Note that thanks to this "Closes" tag, the mentioned bug trackers can also
locate where a patch has been applied in different branches and
repositories. If only the "Link" tag is used, the tracking can also be
done but the ticket will not be closed and a manual operation will be
needed. Also, these bug trackers have some safeguards: the closure is
only done if a commit having the "Closes:" tag is applied in a specific
branch. It will then not be closed if a random commit having the same tag
is published elsewhere. Also in case of closure, a notification is sent
to the owners.
Link: https://lkml.kernel.org/r/20230314-doc-checkpatch-closes-tag-v4-0-d26d1fa66f9f@tessares.net
Link: https://docs.gitlab.com/ee/user/project/issues/managing_issues.html#default-closing-pattern [1]
Link: https://docs.github.com/en/get-started/writing-on-github/working-with-advanced-formatting/using-keywords-in-issues-and-pull-requests [2]
Link: https://lore.kernel.org/linux-doc/20230315181205.f3av7h6owqzzw64p@meerkat.local/ [3]
Link: https://lore.kernel.org/all/CAHk-=wgs38ZrfPvy=nOwVkVzjpM3VFU1zobP37Fwd_h9iAD5JQ@mail.gmail.com/ [4]
Link: https://lore.kernel.org/all/688cd6cb-90ab-6834-a6f5-97080e39ca8e@leemhuis.info/ [5]
Link: https://lore.kernel.org/linux-doc/2194d19d-f195-1a1e-41fc-7827ae569351@leemhuis.info/ [6]
Link: https://github.com/multipath-tcp/mptcp_net-next/issues/373
Link: https://lkml.kernel.org/r/20230314-doc-checkpatch-closes-tag-v4-1-d26d1fa66f9f@tessares.net
Signed-off-by: Matthieu Baerts <matthieu.baerts@tessares.net>
Suggested-by: Thorsten Leemhuis <linux@leemhuis.info>
Acked-by: Konstantin Ryabitsev <konstantin@linuxfoundation.org>
Acked-by: Joe Perches <joe@perches.com>
Cc: Andy Whitcroft <apw@canonical.com>
Cc: Bagas Sanjaya <bagasdotme@gmail.com>
Cc: Daniel Vetter <daniel@ffwll.ch>
Cc: David Airlie <airlied@gmail.com>
Cc: Dwaipayan Ray <dwaipayanray1@gmail.com>
Cc: Jonathan Corbet <corbet@lwn.net>
Cc: Kai Wasserbäch <kai@dev.carbon-project.org>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Lukas Bulwahn <lukas.bulwahn@gmail.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Here are 3 small changes for 6.3-rc5 semi-related to driver core stuff:
- documentation update where we move the security_bugs file to a more
relevant location.
- mdt/spi-nor debugfs memory leak fix that's been floating around for
a long time and acked by the maintainer
- cacheinfo bugfix for a regression in 6.3-rc1
All have been in linux-next with no reported problems.
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Merge tag 'driver-core-6.3-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core
Pull driver core fixes from Greg KH:
"Here are three small changes for 6.3-rc5 semi-related to driver core
stuff:
- documentation update where we move the security_bugs file to a more
relevant location.
- mdt/spi-nor debugfs memory leak fix that's been floating around for
a long time and acked by the maintainer
- cacheinfo bugfix for a regression in 6.3-rc1
All have been in linux-next with no reported problems"
* tag 'driver-core-6.3-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core:
cacheinfo: Fix LLC is not exported through sysfs
Documentation/security-bugs: move from admin-guide/ to process/
mtd: spi-nor: fix memory leak when using debugfs_lookup()
We don't state explicitly that reverts need to be submitted
as a patch. It occasionally comes up.
Reviewed-by: Jacob Keller <jacob.e.keller@intel.com>
Reviewed-by: Florian Fainelli <f.fainelli@gmail.com>
Link: https://lore.kernel.org/r/20230327172646.2622943-1-kuba@kernel.org
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
One of the most commonly asked questions is "I answered all questions
and don't need to make any code changes, why was the patch not applied".
Document our time honored tradition of asking people to repost with
improved commit messages, to record the answers to reviewer questions.
Take this opportunity to also recommend a change log format.
Link: https://lore.kernel.org/r/20230322231202.265835-1-kuba@kernel.org
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
The general changelog rules for the tip tree refers to "Describe your
changes" section of submitting patches guide. However, the internal link
reference targets to non-existent "submittingpatches" label, which
brings reader to the top of the linked doc.
Correct the target. No changes to submitting-patches.rst since the
required label is already there.
Fixes: 31c9d7c829 ("Documentation/process: Add tip tree handbook")
Signed-off-by: Bagas Sanjaya <bagasdotme@gmail.com>
Reviewed-by: Thomas Gleixner <tglx@linutronix.de>
Link: https://lore.kernel.org/r/20230320124327.174881-1-bagasdotme@gmail.com
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
We need the mainline fixes in this branch for testing and other
subsystem changes to be based properly on.
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
For the list of kernel published books, include publication covering kernel
debugging from August, 2022 (ISBN 978-1801075039) and one from March, 2021
on the topic of char device drivers and kernel synchronization (ISBN
978-1801079518). Also add foundational book from Robert Love (ISBN
978-1449339531) and remove extra spaces.
Co-developed-by: Kaiwan N Billimoria <kaiwan.billimoria@gmail.com>
Signed-off-by: Kaiwan N Billimoria <kaiwan.billimoria@gmail.com>
Signed-off-by: Carlos Bilbao <carlos.bilbao@amd.com>
Link: https://lore.kernel.org/r/20230222183445.3127324-1-carlos.bilbao@amd.com
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
As a follow-up to a discussion at the 2021 Maintainer's Summit on the
topic of maintainer recruitment and retention, the TAB took on the
task of creating a document which to help companies and other
organizations to grow in their ability to engage with the Linux Kernel
development community, using the Maturity Model[2] framework.
The goal is to encourage, in a management-friendly way, companies to
allow their engineers to contribute with the upstream Linux Kernel
development community, so we can grow the "talent pipeline" for
contributors to become respected leaders, and eventually kernel
maintainers.
[1] https://lwn.net/Articles/870581/
[2] https://en.wikipedia.org/wiki/Maturity_model
Signed-off-by: Theodore Ts'o <tytso@mit.edu>
Co-developed-by: Kees Cook <keescook@chromium.org>
Signed-off-by: Kees Cook <keescook@chromium.org>
Co-developed-by: Dan Williams <dan.j.williams@intel.com>
Signed-off-by: Dan Williams <dan.j.williams@intel.com>
Acked-by: Jakub Kicinski <kuba@kernel.org>
Acked-by: Christian Brauner (Microsoft) <brauner@kernel.org>
Acked-by: Dave Hansen <dave.hansen@linux.intel.com>
Acked-by: Jonathan Corbet <corbet@lwn.net>
Acked-by: Randy Dunlap <rdunlap@infradead.org>
Link: https://lore.kernel.org/r/20230308190403.2157046-1-tytso@mit.edu
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
In the second paragraph of section "Respond to review comments", there is
a spelling mistake: "aganst" should be "against".
Signed-off-by: Xujun Leng <lengxujun2007@126.com>
Link: https://lore.kernel.org/r/20230312071423.3042-1-lengxujun2007@126.com
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
Jiri Kosina, Jonathan Corbet, and Willy Tarreau all expressed a desire
to move this document under process/.
Create a new section for security issues in the index and group it with
embargoed-hardware-issues.
I'm doing this at the start of the series to make all the subsequent
changes show up in 'git blame'.
Existing references were updated using:
git grep -l security-bugs ':!Documentation/translations/' | xargs sed -i 's|admin-guide/security-bugs|process/security-bugs|g'
git grep -l security-bugs Documentation/translations/ | xargs sed -i 's|Documentation/admin-guide/security-bugs|Documentation/process/security-bugs|g'
git grep -l security-bugs Documentation/translations/ | xargs sed -i '/Original:/s|\.\./admin-guide/security-bugs|\.\./process/security-bugs|g'
Notably, the page is not moved in the translations (due to my lack of
knowledge of these languages), but the translations have been updated
to point to the new location of the original document where these
references exist.
Link: https://lore.kernel.org/all/nycvar.YFH.7.76.2206062326230.10851@cbobk.fhfr.pm/
Suggested-by: Jiri Kosina <jikos@kernel.org>
Cc: Alex Shi <alexs@kernel.org>
Cc: Yanteng Si <siyanteng@loongson.cn>
Cc: Hu Haowen <src.res@email.cn>
Cc: Federico Vaga <federico.vaga@vaga.pv.it>
Cc: Tsugikazu Shibata <tshibata@ab.jp.nec.com>
Cc: Minchan Kim <minchan@kernel.org>
Cc: Jeimi Lee <jamee.lee@samsung.com>
Cc: Carlos Bilbao <carlos.bilbao@amd.com>
Cc: Akira Yokosawa <akiyks@gmail.com>
Signed-off-by: Vegard Nossum <vegard.nossum@oracle.com>
Acked-by: Carlos Bilbao <carlos.bilbao@amd.com>
Reviewed-by: Yanteng Si <siyanteng@loongson.cn>
Reviewed-by: Akira Yokosawa <akiyks@gmail.com>
Acked-by: Federico Vaga <federico.vaga@vaga.pv.it>
Reviewed-by: Bagas Sanjaya <bagasdotme@gmail.com>
Link: https://lore.kernel.org/r/20230305220010.20895-2-vegard.nossum@oracle.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
These char PCMCIA drivers are buggy[1] and receive only minimal care. It
was concluded[2], that we should try to remove most pcmcia drivers
completely. Let's start with these char broken one.
Note that I also removed a UAPI header: include/uapi/linux/cm4000_cs.h.
I found only coccinelle tests mentioning some ioctl constants from that
file. But they are not actually used. Anyway, should someone complain,
we may reintroduce the header (or its parts).
[1] https://lore.kernel.org/all/f41c2765-80e0-48bc-b1e4-8cfd3230fd4a@www.fastmail.com/
[2] https://lore.kernel.org/all/c5b39544-a4fb-4796-a046-0b9be9853787@app.fastmail.com/
Signed-off-by: Jiri Slaby (SUSE) <jirislaby@kernel.org>
Cc: "Hyunwoo Kim" <imv4bel@gmail.com>
Cc: Harald Welte <laforge@gnumonks.org>
Cc: Lubomir Rintel <lkundrak@v3.sk>
Cc: Arnd Bergmann <arnd@arndb.de>
Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Acked-by: Dominik Brodowski <linux@dominikbrodowski.net>
Reviewed-by: Arnd Bergmann <arnd@arndb.de>
Link: https://lore.kernel.org/r/20230222092302.6348-2-jirislaby@kernel.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Following the C text in the file, add a mention about the Rust
programming language, the currently supported compiler and
the edition used (similar to the "dialect" mention for C).
Similarly, add a mention about the unstable features used (similar
to the "extensions" mentions for C).
In addition, add some links to complement the information.
Signed-off-by: Miguel Ojeda <ojeda@kernel.org>
Link: https://lore.kernel.org/r/20230306191712.230658-2-ojeda@kernel.org
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
The Intel compiler support has been removed in commit 95207db816
("Remove Intel compiler support").
Thus remove its mention in the Documentation too.
Signed-off-by: Miguel Ojeda <ojeda@kernel.org>
Reviewed-by: Vincenzo Palazzo <vincenzopalazzodev@gmail.com>
Reviewed-by: Nick Desaulniers <ndesaulniers@google.com>
Link: https://lore.kernel.org/r/20230306191712.230658-1-ojeda@kernel.org
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
but which I didn't get merged for the first round:
- A recommendation from Thorsten (also akpm) on use of Link tags to point
out problem reports.
- Some front-page formatting tweaks
- Another Spanish translation
- One typo(ish) fix.
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Merge tag 'docs-6.3-2' of git://git.lwn.net/linux
Pull Documentation stragglers from Jonathan Corbet:
"A handful of documentation patches that were ready before the merge
window, but which I didn't get merged for the first round:
- A recommendation from Thorsten (also akpm) on use of Link tags to
point out problem reports
- Some front-page formatting tweaks
- Another Spanish translation
- One typo(ish) fix"
* tag 'docs-6.3-2' of git://git.lwn.net/linux:
docs: recommend using Link: whenever using Reported-by:
Documentation: front page: use recommended heading adornments
docs/sp_SP: Add process programming-language translation
docs: locking: refer to the actual existing config names
Long long ago, in a more innocent time, Greg wrote the clarification for
how the DCO should work and that you couldn't make anonymous
contributions, because the sign-off needed to be something we could
check back with.
It was 2006, and nobody reacted to the wording, the whole Facebook 'real
name' controversy was a decade in the future, and nobody even thought
about it. And despite the language, we've always accepted nicknames and
that language was never meant to be any kind of exclusionary wording.
In fact, even when it became a discussion in other adjacent projects,
apparently nobody even thought to just clarify the language in the
kernel docs, and instead we had projects like the CNCF that had long
discussions about it, and wrote their own clarifications [1] of it.
Just simplify the wording to the point where it shouldn't be causing
unnecessary angst and pain, or scare away people who go by preferred
naming.
Link: https://github.com/cncf/foundation/blob/659fd32c86dc/dco-guidelines.md [1]
Fixes: af45f32d25 ("We can not allow anonymous contributions to the kernel")
Acked-by: Greg KH <gregkh@linuxfoundation.org>
Acked-by: Michael Dolan <mdolan@linuxfoundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Greg Kroah-Hartman