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95faf6ba65
2308 Commits
| Author | SHA1 | Message | Date | |
|---|---|---|---|---|
Linus Torvalds
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95faf6ba65 |
Driver core changes for 5.16-rc1
Here is the big set of driver core changes for 5.16-rc1.
All of these have been in linux-next for a while now with no reported
problems.
Included in here are:
- big update and cleanup of the sysfs abi documentation files
and scripts from Mauro. We are almost at the place where we
can properly check that the running kernel's sysfs abi is
documented fully.
- firmware loader updates
- dyndbg updates
- kernfs cleanups and fixes from Christoph
- device property updates
- component fix
- other minor driver core cleanups and fixes
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Merge tag 'driver-core-5.16-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core
Pull driver core updates from Greg KH:
"Here is the big set of driver core changes for 5.16-rc1.
All of these have been in linux-next for a while now with no reported
problems.
Included in here are:
- big update and cleanup of the sysfs abi documentation files and
scripts from Mauro. We are almost at the place where we can
properly check that the running kernel's sysfs abi is documented
fully.
- firmware loader updates
- dyndbg updates
- kernfs cleanups and fixes from Christoph
- device property updates
- component fix
- other minor driver core cleanups and fixes"
* tag 'driver-core-5.16-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core: (122 commits)
device property: Drop redundant NULL checks
x86/build: Tuck away built-in firmware under FW_LOADER
vmlinux.lds.h: wrap built-in firmware support under FW_LOADER
firmware_loader: move struct builtin_fw to the only place used
x86/microcode: Use the firmware_loader built-in API
firmware_loader: remove old DECLARE_BUILTIN_FIRMWARE()
firmware_loader: formalize built-in firmware API
component: do not leave master devres group open after bind
dyndbg: refine verbosity 1-4 summary-detail
gpiolib: acpi: Replace custom code with device_match_acpi_handle()
i2c: acpi: Replace custom function with device_match_acpi_handle()
driver core: Provide device_match_acpi_handle() helper
dyndbg: fix spurious vNpr_info change
dyndbg: no vpr-info on empty queries
dyndbg: vpr-info on remove-module complete, not starting
device property: Add missed header in fwnode.h
Documentation: dyndbg: Improve cli param examples
dyndbg: Remove support for ddebug_query param
dyndbg: make dyndbg a known cli param
dyndbg: show module in vpr-info in dd-exec-queries
...
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Linus Torvalds
|
44261f8e28 |
hyperv-next for 5.16
-----BEGIN PGP SIGNATURE----- iQFHBAABCAAxFiEEIbPD0id6easf0xsudhRwX5BBoF4FAmGBMQUTHHdlaS5saXVA a2VybmVsLm9yZwAKCRB2FHBfkEGgXmE5B/9MK3Ju+tc6C8eyR3Ic4XBYHJ3voEKO M+R90gggBriDOgkz4B8vF+k0aD8wevXAUtmCSXonDzCh5H7GoyfrVZmJEVkwlioH ZMSMlFHcjGhCPIXhLbNtfo/NsAYEtT/lRM2lLGCSbdGuKabylXKujVdhuSIcRPdj Rj5innUgcAywOoxG6WzFt3JBzM33UQErCGfUF2b7Rvp9E+Zii4vIMxkMzUpnkEHH F8WMEdL0DqH5ThOs0MslNgy03pUC9wk1d5DNd9ytYHqiSQtcQZhFHw/P6dxzUFlW OptWv31PXUIsiJf4Zi9hmfjgUl+KZHeacZ2hXtidAo86VPcIjVs25OQW =40fn -----END PGP SIGNATURE----- Merge tag 'hyperv-next-signed-20211102' of git://git.kernel.org/pub/scm/linux/kernel/git/hyperv/linux Pull hyperv updates from Wei Liu: - Initial patch set for Hyper-V isolation VM support (Tianyu Lan) - Fix a warning on preemption (Vitaly Kuznetsov) - A bunch of misc cleanup patches * tag 'hyperv-next-signed-20211102' of git://git.kernel.org/pub/scm/linux/kernel/git/hyperv/linux: x86/hyperv: Protect set_hv_tscchange_cb() against getting preempted Drivers: hv : vmbus: Adding NULL pointer check x86/hyperv: Remove duplicate include x86/hyperv: Remove duplicated include in hv_init Drivers: hv: vmbus: Remove unused code to check for subchannels Drivers: hv: vmbus: Initialize VMbus ring buffer for Isolation VM Drivers: hv: vmbus: Add SNP support for VMbus channel initiate message x86/hyperv: Add ghcb hvcall support for SNP VM x86/hyperv: Add Write/Read MSR registers via ghcb page Drivers: hv: vmbus: Mark vmbus ring buffer visible to host in Isolation VM x86/hyperv: Add new hvcall guest address host visibility support x86/hyperv: Initialize shared memory boundary in the Isolation VM. x86/hyperv: Initialize GHCB page in Isolation VM |
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Linus Torvalds
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cc0356d6a0 |
- Do not #GP on userspace use of CLI/STI but pretend it was a NOP to
keep old userspace from breaking. Adjust the corresponding iopl selftest to that. - Improve stack overflow warnings to say which stack got overflowed and raise the exception stack sizes to 2 pages since overflowing the single page of exception stack is very easy to do nowadays with all the tracing machinery enabled. With that, rip out the custom mapping of AMD SEV's too. - A bunch of changes in preparation for FGKASLR like supporting more than 64K section headers in the relocs tool, correct ORC lookup table size to cover the whole kernel .text and other adjustments. -----BEGIN PGP SIGNATURE----- iQIzBAABCgAdFiEEzv7L6UO9uDPlPSfHEsHwGGHeVUoFAmF/uugACgkQEsHwGGHe VUroKw//e8BJ3Aun8bg00FHxfiMGbPYcozjLGDkaoMtMDZ8WlfCUrvtqYICEr8eB UU0eRyygAPI167dre1O9JvAcbilkNTKntaU6qbu/ZVyUwS3+Jkjwsotbqn3xKtkd QDDTDNiCU+beCJ2ZbspbrPgEh13+H0MwMHUfRxZB9Scpmo6aGSEaU3g295f6GX57 VFGJ/LNov5MV1dTD7Pp/h6/Nb+R6WmflKcBzJmQxYuKyKX+g1xsSv0VSga+t+uf3 M9pUkizqTiUxzC2eLgtcEZTqqBHu810E8M76FmhKBUMilsFJT5YAJTiqyahwHXds HYarOFRgcnFuJPd29vn8UHjqeeoi6ru8GtcZYzccEc7U3ku/gXPaDJ9ffmvhs7vU pJX5Um3GiiFm0w/ZZOKDqh78wRAsCKLN+jIoyszuhkkNchZSj/jKfOgdd3EmcZst 6L6rxBA4oRHwNOgM7uVMp+jFeRe1/prR280OWWH0D4QmmuqybThOdO23Iuh/Deth W3qPUH3UQtfSWxGy2yODzJ1ciuGAr/AzJZ9zjg04e3Vl0DkEpyWtLKJiG3ClXZag Nj+3xc4xYH2Aw+M0HRaONk5XVKLpqVjuAfgU5iLQa0YSUbtrR+wCWvY8KgQNbAqK xZmzYzQ89stwVCuGKx10gPsL3jSJ3VCylMfqdHD2Ajmld1yApr0= =DOZU -----END PGP SIGNATURE----- Merge tag 'x86_core_for_v5.16_rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip Pull x86 core updates from Borislav Petkov: - Do not #GP on userspace use of CLI/STI but pretend it was a NOP to keep old userspace from breaking. Adjust the corresponding iopl selftest to that. - Improve stack overflow warnings to say which stack got overflowed and raise the exception stack sizes to 2 pages since overflowing the single page of exception stack is very easy to do nowadays with all the tracing machinery enabled. With that, rip out the custom mapping of AMD SEV's too. - A bunch of changes in preparation for FGKASLR like supporting more than 64K section headers in the relocs tool, correct ORC lookup table size to cover the whole kernel .text and other adjustments. * tag 'x86_core_for_v5.16_rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: selftests/x86/iopl: Adjust to the faked iopl CLI/STI usage vmlinux.lds.h: Have ORC lookup cover entire _etext - _stext x86/boot/compressed: Avoid duplicate malloc() implementations x86/boot: Allow a "silent" kaslr random byte fetch x86/tools/relocs: Support >64K section headers x86/sev: Make the #VC exception stacks part of the default stacks storage x86: Increase exception stack sizes x86/mm/64: Improve stack overflow warnings x86/iopl: Fake iopl(3) CLI/STI usage |
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Linus Torvalds
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79ef0c0014 |
Tracing updates for 5.16:
- kprobes: Restructured stack unwinder to show properly on x86 when a stack dump happens from a kretprobe callback. - Fix to bootconfig parsing - Have tracefs allow owner and group permissions by default (only denying others). There's been pressure to allow non root to tracefs in a controlled fashion, and using groups is probably the safest. - Bootconfig memory managament updates. - Bootconfig clean up to have the tools directory be less dependent on changes in the kernel tree. - Allow perf to be traced by function tracer. - Rewrite of function graph tracer to be a callback from the function tracer instead of having its own trampoline (this change will happen on an arch by arch basis, and currently only x86_64 implements it). - Allow multiple direct trampolines (bpf hooks to functions) be batched together in one synchronization. - Allow histogram triggers to add variables that can perform calculations against the event's fields. - Use the linker to determine architecture callbacks from the ftrace trampoline to allow for proper parameter prototypes and prevent warnings from the compiler. - Extend histogram triggers to key off of variables. - Have trace recursion use bit magic to determine preempt context over if branches. - Have trace recursion disable preemption as all use cases do anyway. - Added testing for verification of tracing utilities. - Various small clean ups and fixes. -----BEGIN PGP SIGNATURE----- iIoEABYIADIWIQRRSw7ePDh/lE+zeZMp5XQQmuv6qgUCYYBdxhQccm9zdGVkdEBn b29kbWlzLm9yZwAKCRAp5XQQmuv6qp1sAQD2oYFwaG3sx872gj/myBcHIBSKdiki Hry5csd8zYDBpgD+Poylopt5JIbeDuoYw/BedgEXmscZ8Qr7VzjAXdnv/Q4= =Loz8 -----END PGP SIGNATURE----- Merge tag 'trace-v5.16' of git://git.kernel.org/pub/scm/linux/kernel/git/rostedt/linux-trace Pull tracing updates from Steven Rostedt: - kprobes: Restructured stack unwinder to show properly on x86 when a stack dump happens from a kretprobe callback. - Fix to bootconfig parsing - Have tracefs allow owner and group permissions by default (only denying others). There's been pressure to allow non root to tracefs in a controlled fashion, and using groups is probably the safest. - Bootconfig memory managament updates. - Bootconfig clean up to have the tools directory be less dependent on changes in the kernel tree. - Allow perf to be traced by function tracer. - Rewrite of function graph tracer to be a callback from the function tracer instead of having its own trampoline (this change will happen on an arch by arch basis, and currently only x86_64 implements it). - Allow multiple direct trampolines (bpf hooks to functions) be batched together in one synchronization. - Allow histogram triggers to add variables that can perform calculations against the event's fields. - Use the linker to determine architecture callbacks from the ftrace trampoline to allow for proper parameter prototypes and prevent warnings from the compiler. - Extend histogram triggers to key off of variables. - Have trace recursion use bit magic to determine preempt context over if branches. - Have trace recursion disable preemption as all use cases do anyway. - Added testing for verification of tracing utilities. - Various small clean ups and fixes. * tag 'trace-v5.16' of git://git.kernel.org/pub/scm/linux/kernel/git/rostedt/linux-trace: (101 commits) tracing/histogram: Fix semicolon.cocci warnings tracing/histogram: Fix documentation inline emphasis warning tracing: Increase PERF_MAX_TRACE_SIZE to handle Sentinel1 and docker together tracing: Show size of requested perf buffer bootconfig: Initialize ret in xbc_parse_tree() ftrace: do CPU checking after preemption disabled ftrace: disable preemption when recursion locked tracing/histogram: Document expression arithmetic and constants tracing/histogram: Optimize division by a power of 2 tracing/histogram: Covert expr to const if both operands are constants tracing/histogram: Simplify handling of .sym-offset in expressions tracing: Fix operator precedence for hist triggers expression tracing: Add division and multiplication support for hist triggers tracing: Add support for creating hist trigger variables from literal selftests/ftrace: Stop tracing while reading the trace file by default MAINTAINERS: Update KPROBES and TRACING entries test_kprobes: Move it from kernel/ to lib/ docs, kprobes: Remove invalid URL and add new reference samples/kretprobes: Fix return value if register_kretprobe() failed lib/bootconfig: Fix the xbc_get_info kerneldoc ... |
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Linus Torvalds
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49f8275c7d |
Memory folios
Add memory folios, a new type to represent either order-0 pages or the head page of a compound page. This should be enough infrastructure to support filesystems converting from pages to folios. -----BEGIN PGP SIGNATURE----- iQEzBAABCgAdFiEEejHryeLBw/spnjHrDpNsjXcpgj4FAmF9uI0ACgkQDpNsjXcp gj7MUAf/R7LCZ+xFiIedw7SAgb/DGK0C9uVjuBEIZgAw21ZUw/GuPI6cuKBMFGGf rRcdtlvMpwi7yZJcoNXxaqU/xPaaJMjf2XxscIvYJP1mjlZVuwmP9dOx0neNvWOc T+8lqR6c1TLl82lpqIjGFLwvj2eVowq2d3J5jsaIJFd4odmmYVInrhJXOzC/LQ54 Niloj5ksehf+KUIRLDz7ycppvIHhlVsoAl0eM2dWBAtL0mvT7Nyn/3y+vnMfV2v3 Flb4opwJUgTJleYc16oxTn9svT2yS8q2uuUemRDLW8ABghoAtH3fUUk43RN+5Krd LYCtbeawtkikPVXZMfWybsx5vn0c3Q== =7SBe -----END PGP SIGNATURE----- Merge tag 'folio-5.16' of git://git.infradead.org/users/willy/pagecache Pull memory folios from Matthew Wilcox: "Add memory folios, a new type to represent either order-0 pages or the head page of a compound page. This should be enough infrastructure to support filesystems converting from pages to folios. The point of all this churn is to allow filesystems and the page cache to manage memory in larger chunks than PAGE_SIZE. The original plan was to use compound pages like THP does, but I ran into problems with some functions expecting only a head page while others expect the precise page containing a particular byte. The folio type allows a function to declare that it's expecting only a head page. Almost incidentally, this allows us to remove various calls to VM_BUG_ON(PageTail(page)) and compound_head(). This converts just parts of the core MM and the page cache. For 5.17, we intend to convert various filesystems (XFS and AFS are ready; other filesystems may make it) and also convert more of the MM and page cache to folios. For 5.18, multi-page folios should be ready. The multi-page folios offer some improvement to some workloads. The 80% win is real, but appears to be an artificial benchmark (postgres startup, which isn't a serious workload). Real workloads (eg building the kernel, running postgres in a steady state, etc) seem to benefit between 0-10%. I haven't heard of any performance losses as a result of this series. Nobody has done any serious performance tuning; I imagine that tweaking the readahead algorithm could provide some more interesting wins. There are also other places where we could choose to create large folios and currently do not, such as writes that are larger than PAGE_SIZE. I'd like to thank all my reviewers who've offered review/ack tags: Christoph Hellwig, David Howells, Jan Kara, Jeff Layton, Johannes Weiner, Kirill A. Shutemov, Michal Hocko, Mike Rapoport, Vlastimil Babka, William Kucharski, Yu Zhao and Zi Yan. I'd also like to thank those who gave feedback I incorporated but haven't offered up review tags for this part of the series: Nick Piggin, Mel Gorman, Ming Lei, Darrick Wong, Ted Ts'o, John Hubbard, Hugh Dickins, and probably a few others who I forget" * tag 'folio-5.16' of git://git.infradead.org/users/willy/pagecache: (90 commits) mm/writeback: Add folio_write_one mm/filemap: Add FGP_STABLE mm/filemap: Add filemap_get_folio mm/filemap: Convert mapping_get_entry to return a folio mm/filemap: Add filemap_add_folio() mm/filemap: Add filemap_alloc_folio mm/page_alloc: Add folio allocation functions mm/lru: Add folio_add_lru() mm/lru: Convert __pagevec_lru_add_fn to take a folio mm: Add folio_evictable() mm/workingset: Convert workingset_refault() to take a folio mm/filemap: Add readahead_folio() mm/filemap: Add folio_mkwrite_check_truncate() mm/filemap: Add i_blocks_per_folio() mm/writeback: Add folio_redirty_for_writepage() mm/writeback: Add folio_account_redirty() mm/writeback: Add folio_clear_dirty_for_io() mm/writeback: Add folio_cancel_dirty() mm/writeback: Add folio_account_cleaned() mm/writeback: Add filemap_dirty_folio() ... |
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Tianyu Lan
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20c89a559e |
x86/hyperv: Add ghcb hvcall support for SNP VM
hyperv provides ghcb hvcall to handle VMBus HVCALL_SIGNAL_EVENT and HVCALL_POST_MESSAGE msg in SNP Isolation VM. Add such support. Reviewed-by: Michael Kelley <mikelley@microsoft.com> Signed-off-by: Tianyu Lan <Tianyu.Lan@microsoft.com> Link: https://lore.kernel.org/r/20211025122116.264793-8-ltykernel@gmail.com Signed-off-by: Wei Liu <wei.liu@kernel.org> |
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Tianyu Lan
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faff44069f |
x86/hyperv: Add Write/Read MSR registers via ghcb page
Hyperv provides GHCB protocol to write Synthetic Interrupt Controller MSR registers in Isolation VM with AMD SEV SNP and these registers are emulated by hypervisor directly. Hyperv requires to write SINTx MSR registers twice. First writes MSR via GHCB page to communicate with hypervisor and then writes wrmsr instruction to talk with paravisor which runs in VMPL0. Guest OS ID MSR also needs to be set via GHCB page. Reviewed-by: Michael Kelley <mikelley@microsoft.com> Signed-off-by: Tianyu Lan <Tianyu.Lan@microsoft.com> Link: https://lore.kernel.org/r/20211025122116.264793-7-ltykernel@gmail.com Signed-off-by: Wei Liu <wei.liu@kernel.org> |
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Tianyu Lan
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810a521265 |
x86/hyperv: Add new hvcall guest address host visibility support
Add new hvcall guest address host visibility support to mark memory visible to host. Call it inside set_memory_decrypted /encrypted(). Add HYPERVISOR feature check in the hv_is_isolation_supported() to optimize in non-virtualization environment. Acked-by: Dave Hansen <dave.hansen@intel.com> Reviewed-by: Michael Kelley <mikelley@microsoft.com> Signed-off-by: Tianyu Lan <Tianyu.Lan@microsoft.com> Link: https://lore.kernel.org/r/20211025122116.264793-4-ltykernel@gmail.com [ wei: fix conflicts with tip ] Signed-off-by: Wei Liu <wei.liu@kernel.org> |
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Tianyu Lan
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af788f355e |
x86/hyperv: Initialize shared memory boundary in the Isolation VM.
Hyper-V exposes shared memory boundary via cpuid HYPERV_CPUID_ISOLATION_CONFIG and store it in the shared_gpa_boundary of ms_hyperv struct. This prepares to share memory with host for SNP guest. Reviewed-by: Michael Kelley <mikelley@microsoft.com> Signed-off-by: Tianyu Lan <Tianyu.Lan@microsoft.com> Link: https://lore.kernel.org/r/20211025122116.264793-3-ltykernel@gmail.com Signed-off-by: Wei Liu <wei.liu@kernel.org> |
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Tianyu Lan
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0cc4f6d9f0 |
x86/hyperv: Initialize GHCB page in Isolation VM
Hyperv exposes GHCB page via SEV ES GHCB MSR for SNP guest to communicate with hypervisor. Map GHCB page for all cpus to read/write MSR register and submit hvcall request via ghcb page. Reviewed-by: Michael Kelley <mikelley@microsoft.com> Signed-off-by: Tianyu Lan <Tianyu.Lan@microsoft.com> Link: https://lore.kernel.org/r/20211025122116.264793-2-ltykernel@gmail.com Signed-off-by: Wei Liu <wei.liu@kernel.org> |
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Kristen Carlson Accardi
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ca136cac37 |
vmlinux.lds.h: Have ORC lookup cover entire _etext - _stext
When using -ffunction-sections to place each function in its own text section (so it can be randomized at load time in the future FGKASLR series), the linker will place most of the functions into separate .text.* sections. SIZEOF(.text) won't work here for calculating the ORC lookup table size, so the total text size must be calculated to include .text AND all .text.* sections. Signed-off-by: Kristen Carlson Accardi <kristen@linux.intel.com> [ alobakin: move it to vmlinux.lds.h and make arch-indep ] Signed-off-by: Alexander Lobakin <alexandr.lobakin@intel.com> Signed-off-by: Kees Cook <keescook@chromium.org> Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org> Reviewed-by: Tony Luck <tony.luck@intel.com> Reviewed-by: Kees Cook <keescook@chromium.org> Acked-by: Josh Poimboeuf <jpoimboe@redhat.com> Tested-by: Tony Luck <tony.luck@intel.com> Link: https://lore.kernel.org/r/20211013175742.1197608-5-keescook@chromium.org |
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Luis Chamberlain
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771856caf5 |
vmlinux.lds.h: wrap built-in firmware support under FW_LOADER
The firmware loader built-in firmware is only available when FW_LOADER is built-in, so tuck away the sections for built-in firmware under it. This ensures no oddball user tries to uses these sections without first enabling FW_LOADER=y. Reviewed-by: Borislav Petkov <bp@suse.de> Signed-off-by: Luis Chamberlain <mcgrof@kernel.org> Link: https://lore.kernel.org/r/20211021155843.1969401-6-mcgrof@kernel.org Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> |
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Steven Rostedt (VMware)
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34cdd18b8d |
tracing: Use linker magic instead of recasting ftrace_ops_list_func()
In an effort to enable -Wcast-function-type in the top-level Makefile to support Control Flow Integrity builds, all function casts need to be removed. This means that ftrace_ops_list_func() can no longer be defined as ftrace_ops_no_ops(). The reason for ftrace_ops_no_ops() is to use that when an architecture calls ftrace_ops_list_func() with only two parameters (called from assembly). And to make sure there's no C side-effects, those archs call ftrace_ops_no_ops() which only has two parameters, as ftrace_ops_list_func() has four parameters. Instead of a typecast, use vmlinux.lds.h to define ftrace_ops_list_func() to arch_ftrace_ops_list_func() that will define the proper set of parameters. Link: https://lore.kernel.org/r/20200614070154.6039-1-oscar.carter@gmx.com Link: https://lkml.kernel.org/r/20200617165616.52241bde@oasis.local.home Link: https://lore.kernel.org/all/20211005053922.GA702049@embeddedor/ Requested-by: Oscar Carter <oscar.carter@gmx.com> Reported-by: kernel test robot <lkp@intel.com> Signed-off-by: Steven Rostedt (VMware) <rostedt@goodmis.org> |
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Matthew Wilcox (Oracle)
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08b0b0059b |
mm: Add flush_dcache_folio()
This is a default implementation which calls flush_dcache_page() on each page in the folio. If architectures can do better, they should implement their own version of it. Signed-off-by: Matthew Wilcox (Oracle) <willy@infradead.org> Acked-by: Vlastimil Babka <vbabka@suse.cz> |
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Linus Torvalds
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0dcf60d001 |
asm-generic: build fixes for v5.15
There is one build fix for Arm platforms that ended up impacting most architectures because of the way the drivers/firmware Kconfig file is wired up: The CONFIG_QCOM_SCM dependency have caused a number of randconfig regressions over time, and some still remain in v5.15-rc4. The fix we agreed on in the end is to make this symbol selected by any driver using it, and then building it even for non-Arm platforms with CONFIG_COMPILE_TEST. To make this work on all architectures, the drivers/firmware/Kconfig file needs to be included for all architectures to make the symbol itself visible. In a separate discussion, we found that a sound driver patch that is pending for v5.16 needs the same change to include this Kconfig file, so the easiest solution seems to have my Kconfig rework included in v5.15. There is a small merge conflict against an earlier partial fix for the QCOM_SCM dependency problems. Finally, the branch also includes a small unrelated build fix for NOMMU architectures. Link: https://lore.kernel.org/all/20210928153508.101208f8@canb.auug.org.au/ Link: https://lore.kernel.org/all/20210928075216.4193128-1-arnd@kernel.org/ Link: https://lore.kernel.org/all/20211007151010.333516-1-arnd@kernel.org/ Signed-off-by: Arnd Bergmann <arnd@arndb.de> -----BEGIN PGP SIGNATURE----- iQIzBAABCgAdFiEEo6/YBQwIrVS28WGKmmx57+YAGNkFAmFgVp8ACgkQmmx57+YA GNlQoA/+O0ljtTy5D0MjRGmFDs11M5AtKNrfys82lm2GeEnc4lnxn722jLk8kR6s y6DSOWFs7w1bqhKExQNehZYtJO3sgW/9qiLMV9qfOx1Nc6WwhDPcYM9bMyGlpTmL M456nh8NopixV7slanNtfz1e0kbMKoK+4Ub7M5OHepK6x9FKQXQYQpeoBxaXHmWZ 9eaRiL/CsRHO/cSkvpq1GtL7IVrudvij3FDHzxoDGFFjkCUm9LiN/8yrnVxHA9G7 3EPyJazI559SsnxXJR32udGPJWZV1HZ7D5gbxDvzr5rZ9EX0JpyPGJsuXUR1wqlS UB2Y7AUTSxkwDiZ8UhPoXn6i67WAirzEsP2WmdS4v6NEbxlNloLGTIeGwcwkCRMU DBvMtDW8kKusgVu/OkEUgoC6MTRt+Mg+gZcQI/C4sp0MqZGaMY6c7abnYjqwEzBV ARS7bUYyME2GL6wNDPFB8esuD9jjdFXy96bGHATmzMxT3012K3X7ufFOzJZ+GOF9 pan00fgoC17oiI+Xu/sZEHns6KvMTSE11Aw3uk+yhHxYtZbzWi2B5Nk+4tBdsOxF PAZdZ5qsyuEcBw+PyfbyZIHWOrlbvZkrmjiIsMJo63cIXuOtgraCjvRRAwe/ZwoU PXgPcUmrlAs06WjKhuQAZWt6bww7cEP2XyOYlDqwZ4Vj0dqav6g= =187C -----END PGP SIGNATURE----- Merge tag 'asm-generic-fixes-5.15' of git://git.kernel.org/pub/scm/linux/kernel/git/arnd/asm-generic Pull asm-generic fixes from Arnd Bergmann: "There is one build fix for Arm platforms that ended up impacting most architectures because of the way the drivers/firmware Kconfig file is wired up: The CONFIG_QCOM_SCM dependency have caused a number of randconfig regressions over time, and some still remain in v5.15-rc4. The fix we agreed on in the end is to make this symbol selected by any driver using it, and then building it even for non-Arm platforms with CONFIG_COMPILE_TEST. To make this work on all architectures, the drivers/firmware/Kconfig file needs to be included for all architectures to make the symbol itself visible. In a separate discussion, we found that a sound driver patch that is pending for v5.16 needs the same change to include this Kconfig file, so the easiest solution seems to have my Kconfig rework included in v5.15. Finally, the branch also includes a small unrelated build fix for NOMMU architectures" Link: https://lore.kernel.org/all/20210928153508.101208f8@canb.auug.org.au/ Link: https://lore.kernel.org/all/20210928075216.4193128-1-arnd@kernel.org/ Link: https://lore.kernel.org/all/20211007151010.333516-1-arnd@kernel.org/ * tag 'asm-generic-fixes-5.15' of git://git.kernel.org/pub/scm/linux/kernel/git/arnd/asm-generic: asm-generic/io.h: give stub iounmap() on !MMU same prototype as elsewhere qcom_scm: hide Kconfig symbol firmware: include drivers/firmware/Kconfig unconditionally |
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Adam Borowski
|
2fbc349911 |
asm-generic/io.h: give stub iounmap() on !MMU same prototype as elsewhere
It made -Werror sad. Signed-off-by: Adam Borowski <kilobyte@angband.pl> Signed-off-by: Arnd Bergmann <arnd@arndb.de> |
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Linus Torvalds
|
316e8d79a0 |
pci_iounmap'2: Electric Boogaloo: try to make sense of it all
Nathan Chancellor reports that the recent change to pci_iounmap in commit |
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|
Helge Deller
|
9caea00076 |
parisc: Declare pci_iounmap() parisc version only when CONFIG_PCI enabled
Linus noticed odd declaration rules for pci_iounmap() in iomap.h and
pci_iomap.h, where it dependend on either NO_GENERIC_PCI_IOPORT_MAP or
GENERIC_IOMAP when CONFIG_PCI was disabled.
Testing on parisc seems to indicate that we need pci_iounmap() only when
CONFIG_PCI is enabled, so the declaration of pci_iounmap() can be moved
cleanly into pci_iomap.h in sync with the declarations of pci_iomap().
Link: https://lore.kernel.org/all/CAHk-=wjRrh98pZoQ+AzfWmsTZacWxTJKXZ9eKU2X_0+jM=O8nw@mail.gmail.com/
Signed-off-by: Helge Deller <deller@gmx.de>
Suggested-by: Linus Torvalds <torvalds@linux-foundation.org>
Fixes:
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Linus Torvalds
|
ff1ffd71d5 |
hyperv-fixes for 5.15-rc2
-----BEGIN PGP SIGNATURE----- iQFHBAABCAAxFiEEIbPD0id6easf0xsudhRwX5BBoF4FAmFB6pwTHHdlaS5saXVA a2VybmVsLm9yZwAKCRB2FHBfkEGgXoo5CAChbzKMMbqBHArnNCO+pKkUWmc7eYqJ U368ux75wWEy6ywCUxCHqhwnTrp5KJhyjTPi89V8Vwh+aNG6q86g2dT3I6qsoIby Dav9yw1NiExxNzAEiJVH/WgE+WGZUvWqzbKixdZWjDk9DWhVv7h96chik9dvh9SW /nm27o4sNmnFETQ+kh/hmX+8T6V8HeqZuL9WrGw4EW9At/WE16vjk47Wm5gJRl+j Z1KylALvOiarzzMH3Qx1IxvZ1789JtCIr2b5rHJH8tCPvPF0P2dihm/Wjf6xguyT tDMvquBdQnfugbZXQDy58Agp34Dw+fHCFaOmoruJePa78qqBYzujHvW9 =gBaz -----END PGP SIGNATURE----- Merge tag 'hyperv-fixes-signed-20210915' of git://git.kernel.org/pub/scm/linux/kernel/git/hyperv/linux Pull hyperv fixes from Wei Liu: - Fix kernel crash caused by uio driver (Vitaly Kuznetsov) - Remove on-stack cpumask from HV APIC code (Wei Liu) * tag 'hyperv-fixes-signed-20210915' of git://git.kernel.org/pub/scm/linux/kernel/git/hyperv/linux: x86/hyperv: remove on-stack cpumask from hv_send_ipi_mask_allbutself asm-generic/hyperv: provide cpumask_to_vpset_noself Drivers: hv: vmbus: Fix kernel crash upon unbinding a device from uio_hv_generic driver |
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Linus Torvalds
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316346243b |
Merge branch 'gcc-min-version-5.1' (make gcc-5.1 the minimum version)
Merge patch series from Nick Desaulniers to update the minimum gcc version to 5.1. This is some of the left-overs from the merge window that I didn't want to deal with yesterday, so it comes in after -rc1 but was sent before. Gcc-4.9 support has been an annoyance for some time, and with -Werror I had the choice of applying a fairly big patch from Kees Cook to remove a fair number of initializer warnings (still leaving some), or this patch series from Nick that just removes the source of the problem. The initializer cleanups might still be worth it regardless, but honestly, I preferred just tackling the problem with gcc-4.9 head-on. We've been more aggressiuve about no longer having to care about compilers that were released a long time ago, and I think it's been a good thing. I added a couple of patches on top to sort out a few left-overs now that we no longer support gcc-4.x. As noted by Arnd, as a result of this minimum compiler version upgrade we can probably change our use of '--std=gnu89' to '--std=gnu11', and finally start using local loop declarations etc. But this series does _not_ yet do that. Link: https://lore.kernel.org/all/20210909182525.372ee687@canb.auug.org.au/ Link: https://lore.kernel.org/lkml/CAK7LNASs6dvU6D3jL2GG3jW58fXfaj6VNOe55NJnTB8UPuk2pA@mail.gmail.com/ Link: https://github.com/ClangBuiltLinux/linux/issues/1438 * emailed patches from Nick Desaulniers <ndesaulniers@google.com>: Drop some straggling mentions of gcc-4.9 as being stale compiler_attributes.h: drop __has_attribute() support for gcc4 vmlinux.lds.h: remove old check for GCC 4.9 compiler-gcc.h: drop checks for older GCC versions Makefile: drop GCC < 5 -fno-var-tracking-assignments workaround arm64: remove GCC version check for ARCH_SUPPORTS_INT128 powerpc: remove GCC version check for UPD_CONSTR riscv: remove Kconfig check for GCC version for ARCH_RV64I Kconfig.debug: drop GCC 5+ version check for DWARF5 mm/ksm: remove old GCC 4.9+ check compiler.h: drop fallback overflow checkers Documentation: raise minimum supported version of GCC to 5.1 |
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Nick Desaulniers
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6f20fa2dfa |
vmlinux.lds.h: remove old check for GCC 4.9
Now that GCC 5.1 is the minimally supported version of GCC, we can
effectively revert commit
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Wei Liu
|
7ad9bb9d0f |
asm-generic/hyperv: provide cpumask_to_vpset_noself
This is a new variant which removes `self' cpu from the vpset. It will be used in Hyper-V enlightened IPI code. Signed-off-by: Wei Liu <wei.liu@kernel.org> Reviewed-by: Michael Kelley <mikelley@microsoft.com> Link: https://lore.kernel.org/r/20210910185714.299411-2-wei.liu@kernel.org |
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Linus Torvalds
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35776f1051 |
ARM development updates for 5.15:
- Rename "mod_init" and "mod_exit" so that initcall debug output is
actually useful (Randy Dunlap)
- Update maintainers entries for linux-arm-kernel to indicate it is
moderated for non-subscribers (Randy Dunlap)
- Move install rules to arch/arm/Makefile (Masahiro Yamada)
- Drop unnecessary ARCH_NR_GPIOS definition (Linus Walleij)
- Don't warn about atags_to_fdt() stack size (David Heidelberg)
- Speed up unaligned copy_{from,to}_kernel_nofault (Arnd Bergmann)
- Get rid of set_fs() usage (Arnd Bergmann)
- Remove checks for GCC prior to v4.6 (Geert Uytterhoeven)
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Merge tag 'for-linus' of git://git.armlinux.org.uk/~rmk/linux-arm
Pull ARM development updates from Russell King:
- Rename "mod_init" and "mod_exit" so that initcall debug output is
actually useful (Randy Dunlap)
- Update maintainers entries for linux-arm-kernel to indicate it is
moderated for non-subscribers (Randy Dunlap)
- Move install rules to arch/arm/Makefile (Masahiro Yamada)
- Drop unnecessary ARCH_NR_GPIOS definition (Linus Walleij)
- Don't warn about atags_to_fdt() stack size (David Heidelberg)
- Speed up unaligned copy_{from,to}_kernel_nofault (Arnd Bergmann)
- Get rid of set_fs() usage (Arnd Bergmann)
- Remove checks for GCC prior to v4.6 (Geert Uytterhoeven)
* tag 'for-linus' of git://git.armlinux.org.uk/~rmk/linux-arm:
ARM: 9118/1: div64: Remove always-true __div64_const32_is_OK() duplicate
ARM: 9117/1: asm-generic: div64: Remove always-true __div64_const32_is_OK()
ARM: 9116/1: unified: Remove check for gcc < 4
ARM: 9110/1: oabi-compat: fix oabi epoll sparse warning
ARM: 9113/1: uaccess: remove set_fs() implementation
ARM: 9112/1: uaccess: add __{get,put}_kernel_nofault
ARM: 9111/1: oabi-compat: rework fcntl64() emulation
ARM: 9114/1: oabi-compat: rework sys_semtimedop emulation
ARM: 9108/1: oabi-compat: rework epoll_wait/epoll_pwait emulation
ARM: 9107/1: syscall: always store thread_info->abi_syscall
ARM: 9109/1: oabi-compat: add epoll_pwait handler
ARM: 9106/1: traps: use get_kernel_nofault instead of set_fs()
ARM: 9115/1: mm/maccess: fix unaligned copy_{from,to}_kernel_nofault
ARM: 9105/1: atags_to_fdt: don't warn about stack size
ARM: 9103/1: Drop ARCH_NR_GPIOS definition
ARM: 9102/1: move theinstall rules to arch/arm/Makefile
ARM: 9100/1: MAINTAINERS: mark all linux-arm-kernel@infradead list as moderated
ARM: 9099/1: crypto: rename 'mod_init' & 'mod_exit' functions to be module-specific
|
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Linus Torvalds
|
2d338201d5 |
Merge branch 'akpm' (patches from Andrew)
Merge more updates from Andrew Morton:
"147 patches, based on
|
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Weizhao Ouyang
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395519b4b6 |
mm/early_ioremap.c: remove redundant early_ioremap_shutdown()
early_ioremap_reset() reserved a weak function so that architectures can provide a specific cleanup. Now no architectures use it, remove this redundant function. Link: https://lkml.kernel.org/r/20210901082917.399953-1-o451686892@gmail.com Signed-off-by: Weizhao Ouyang <o451686892@gmail.com> Reviewed-by: David Hildenbrand <david@redhat.com> Cc: Arnd Bergmann <arnd@arndb.de> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> |
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Linus Torvalds
|
ac08b1c68d |
pci-v5.15-changes
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Merge tag 'pci-v5.15-changes' of git://git.kernel.org/pub/scm/linux/kernel/git/helgaas/pci
Pull PCI updates from Bjorn Helgaas:
"Enumeration:
- Convert controller drivers to generic_handle_domain_irq() (Marc
Zyngier)
- Simplify VPD (Vital Product Data) access and search (Heiner
Kallweit)
- Update bnx2, bnx2x, bnxt, cxgb4, cxlflash, sfc, tg3 drivers to use
simplified VPD interfaces (Heiner Kallweit)
- Run Max Payload Size quirks before configuring MPS; work around
ASMedia ASM1062 SATA MPS issue (Marek Behún)
Resource management:
- Refactor pci_ioremap_bar() and pci_ioremap_wc_bar() (Krzysztof
Wilczyński)
- Optimize pci_resource_len() to reduce kernel size (Zhen Lei)
PCI device hotplug:
- Fix a double unmap in ibmphp (Vishal Aslot)
PCIe port driver:
- Enable Bandwidth Notification only if port supports it (Stuart
Hayes)
Sysfs/proc/syscalls:
- Add schedule point in proc_bus_pci_read() (Krzysztof Wilczyński)
- Return ~0 data on pciconfig_read() CAP_SYS_ADMIN failure (Krzysztof
Wilczyński)
- Return "int" from pciconfig_read() syscall (Krzysztof Wilczyński)
Virtualization:
- Extend "pci=noats" to also turn on Translation Blocking to protect
against some DMA attacks (Alex Williamson)
- Add sysfs mechanism to control the type of reset used between
device assignments to VMs (Amey Narkhede)
- Add support for ACPI _RST reset method (Shanker Donthineni)
- Add ACS quirks for Cavium multi-function devices (George Cherian)
- Add ACS quirks for NXP LX2xx0 and LX2xx2 platforms (Wasim Khan)
- Allow HiSilicon AMBA devices that appear as fake PCI devices to use
PASID and SVA (Zhangfei Gao)
Endpoint framework:
- Add support for SR-IOV Endpoint devices (Kishon Vijay Abraham I)
- Zero-initialize endpoint test tool parameters so we don't use
random parameters (Shunyong Yang)
APM X-Gene PCIe controller driver:
- Remove redundant dev_err() call in xgene_msi_probe() (ErKun Yang)
Broadcom iProc PCIe controller driver:
- Don't fail devm_pci_alloc_host_bridge() on missing 'ranges' because
it's optional on BCMA devices (Rob Herring)
- Fix BCMA probe resource handling (Rob Herring)
Cadence PCIe driver:
- Work around J7200 Link training electrical issue by increasing
delays in LTSSM (Nadeem Athani)
Intel IXP4xx PCI controller driver:
- Depend on ARCH_IXP4XX to avoid useless config questions (Geert
Uytterhoeven)
Intel Keembay PCIe controller driver:
- Add Intel Keem Bay PCIe controller (Srikanth Thokala)
Marvell Aardvark PCIe controller driver:
- Work around config space completion handling issues (Evan Wang)
- Increase timeout for config access completions (Pali Rohár)
- Emulate CRS Software Visibility bit (Pali Rohár)
- Configure resources from DT 'ranges' property to fix I/O space
access (Pali Rohár)
- Serialize INTx mask/unmask (Pali Rohár)
MediaTek PCIe controller driver:
- Add MT7629 support in DT (Chuanjia Liu)
- Fix an MSI issue (Chuanjia Liu)
- Get syscon regmap ("mediatek,generic-pciecfg"), IRQ number
("pci_irq"), PCI domain ("linux,pci-domain") from DT properties if
present (Chuanjia Liu)
Microsoft Hyper-V host bridge driver:
- Add ARM64 support (Boqun Feng)
- Support "Create Interrupt v3" message (Sunil Muthuswamy)
NVIDIA Tegra PCIe controller driver:
- Use seq_puts(), move err_msg from stack to static, fix OF node leak
(Christophe JAILLET)
NVIDIA Tegra194 PCIe driver:
- Disable suspend when in Endpoint mode (Om Prakash Singh)
- Fix MSI-X address programming error (Om Prakash Singh)
- Disable interrupts during suspend to avoid spurious AER link down
(Om Prakash Singh)
Renesas R-Car PCIe controller driver:
- Work around hardware issue that prevents Link L1->L0 transition
(Marek Vasut)
- Fix runtime PM refcount leak (Dinghao Liu)
Rockchip DesignWare PCIe controller driver:
- Add Rockchip RK356X host controller driver (Simon Xue)
TI J721E PCIe driver:
- Add support for J7200 and AM64 (Kishon Vijay Abraham I)
Toshiba Visconti PCIe controller driver:
- Add Toshiba Visconti PCIe host controller driver (Nobuhiro
Iwamatsu)
Xilinx NWL PCIe controller driver:
- Enable PCIe reference clock via CCF (Hyun Kwon)
Miscellaneous:
- Convert sta2x11 from 'pci_' to 'dma_' API (Christophe JAILLET)
- Fix pci_dev_str_match_path() alloc while atomic bug (used for
kernel parameters that specify devices) (Dan Carpenter)
- Remove pointless Precision Time Management warning when PTM is
present but not enabled (Jakub Kicinski)
- Remove surplus "break" statements (Krzysztof Wilczyński)"
* tag 'pci-v5.15-changes' of git://git.kernel.org/pub/scm/linux/kernel/git/helgaas/pci: (132 commits)
PCI: ibmphp: Fix double unmap of io_mem
x86/PCI: sta2x11: switch from 'pci_' to 'dma_' API
PCI/VPD: Use unaligned access helpers
PCI/VPD: Clean up public VPD defines and inline functions
cxgb4: Use pci_vpd_find_id_string() to find VPD ID string
PCI/VPD: Add pci_vpd_find_id_string()
PCI/VPD: Include post-processing in pci_vpd_find_tag()
PCI/VPD: Stop exporting pci_vpd_find_info_keyword()
PCI/VPD: Stop exporting pci_vpd_find_tag()
PCI: Set dma-can-stall for HiSilicon chips
PCI: rockchip-dwc: Add Rockchip RK356X host controller driver
PCI: dwc: Remove surplus break statement after return
PCI: artpec6: Remove local code block from switch statement
PCI: artpec6: Remove surplus break statement after return
MAINTAINERS: Add entries for Toshiba Visconti PCIe controller
PCI: visconti: Add Toshiba Visconti PCIe host controller driver
PCI/portdrv: Enable Bandwidth Notification only if port supports it
PCI: Allow PASID on fake PCIe devices without TLP prefixes
PCI: mediatek: Use PCI domain to handle ports detection
PCI: mediatek: Add new method to get irq number
...
|
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Linus Torvalds
|
df43d90382 |
printk changes for 5.15
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||
|
Linus Torvalds
|
c07f191907 |
hyperv-next for 5.15
-----BEGIN PGP SIGNATURE----- iQFHBAABCAAxFiEEIbPD0id6easf0xsudhRwX5BBoF4FAmEuJwwTHHdlaS5saXVA a2VybmVsLm9yZwAKCRB2FHBfkEGgXp0ICACsx9NtQh1f9xGMClYrbobJfGmiwHVV uKut/44Vg39tSyZB4mQt3A8YcaQj1Nibo6HVmxJtbKbrKwlTGAiQh5fiOmBOd7Re /rII/S+CGtAyChI1adHTSL2xdk6WY0c7XQw+IPaERBikG5rO81Y6NLjFZNOv494k JnG9uGGjAcJWFYylPcLxt4sR/hEfE4KDzsWjWOb5azYgo/RwOan6zYDdkUgocp4A J+zmgCiME8LLmEV19gn7p4gpX7X9m5mcNgn53eICYPhrBqI0PTWocm6DepCEnrQ+ pEobIagWIMx5Dr7euEJwLxFSN7bdzleVOa4FSfM0zUsEjdbiPH47VQFM =Vae6 -----END PGP SIGNATURE----- Merge tag 'hyperv-next-signed-20210831' of git://git.kernel.org/pub/scm/linux/kernel/git/hyperv/linux Pull hyperv updates from Wei Liu: - make Hyper-V code arch-agnostic (Michael Kelley) - fix sched_clock behaviour on Hyper-V (Ani Sinha) - fix a fault when Linux runs as the root partition on MSHV (Praveen Kumar) - fix VSS driver (Vitaly Kuznetsov) - cleanup (Sonia Sharma) * tag 'hyperv-next-signed-20210831' of git://git.kernel.org/pub/scm/linux/kernel/git/hyperv/linux: hv_utils: Set the maximum packet size for VSS driver to the length of the receive buffer Drivers: hv: Enable Hyper-V code to be built on ARM64 arm64: efi: Export screen_info arm64: hyperv: Initialize hypervisor on boot arm64: hyperv: Add panic handler arm64: hyperv: Add Hyper-V hypercall and register access utilities x86/hyperv: fix root partition faults when writing to VP assist page MSR hv: hyperv.h: Remove unused inline functions drivers: hv: Decouple Hyper-V clock/timer code from VMbus drivers x86/hyperv: add comment describing TSC_INVARIANT_CONTROL MSR setting bit 0 Drivers: hv: Move Hyper-V misc functionality to arch-neutral code Drivers: hv: Add arch independent default functions for some Hyper-V handlers Drivers: hv: Make portions of Hyper-V init code be arch neutral x86/hyperv: fix for unwanted manipulation of sched_clock when TSC marked unstable asm-generic/hyperv: Add missing #include of nmi.h |
||
|
Linus Torvalds
|
4cdc4cc2ad |
asm-generic changes for 5.15
The main content for 5.15 is a series that cleans up the handling of
strncpy_from_user() and strnlen_user(), removing a lot of slightly
incorrect versions of these in favor of the lib/strn*.c helpers
that implement these correctly and more efficiently.
The only architectures that retain a private version now are
mips, ia64, um and parisc. I had offered to convert those at all,
but Thomas Bogendoerfer wanted to keep the mips version for the
moment until he had a chance to do regression testing.
The branch also contains two patches for bitops and for ffs().
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
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Merge tag 'asm-generic-5.15' of git://git.kernel.org/pub/scm/linux/kernel/git/arnd/asm-generic
Pull asm-generic updates from Arnd Bergmann:
"The main content for 5.15 is a series that cleans up the handling of
strncpy_from_user() and strnlen_user(), removing a lot of slightly
incorrect versions of these in favor of the lib/strn*.c helpers that
implement these correctly and more efficiently.
The only architectures that retain a private version now are mips,
ia64, um and parisc. I had offered to convert those at all, but Thomas
Bogendoerfer wanted to keep the mips version for the moment until he
had a chance to do regression testing.
The branch also contains two patches for bitops and for ffs()"
* tag 'asm-generic-5.15' of git://git.kernel.org/pub/scm/linux/kernel/git/arnd/asm-generic:
bitops/non-atomic: make @nr unsigned to avoid any DIV
asm-generic: ffs: Drop bogus reference to ffz location
asm-generic: reverse GENERIC_{STRNCPY_FROM,STRNLEN}_USER symbols
asm-generic: remove extra strn{cpy_from,len}_user declarations
asm-generic: uaccess: remove inline strncpy_from_user/strnlen_user
s390: use generic strncpy/strnlen from_user
microblaze: use generic strncpy/strnlen from_user
csky: use generic strncpy/strnlen from_user
arc: use generic strncpy/strnlen from_user
hexagon: use generic strncpy/strnlen from_user
h8300: remove stale strncpy_from_user
asm-generic/uaccess.h: remove __strncpy_from_user/__strnlen_user
|
||
|
Linus Torvalds
|
9e9fb7655e |
Core:
- Enable memcg accounting for various networking objects.
BPF:
- Introduce bpf timers.
- Add perf link and opaque bpf_cookie which the program can read
out again, to be used in libbpf-based USDT library.
- Add bpf_task_pt_regs() helper to access user space pt_regs
in kprobes, to help user space stack unwinding.
- Add support for UNIX sockets for BPF sockmap.
- Extend BPF iterator support for UNIX domain sockets.
- Allow BPF TCP congestion control progs and bpf iterators to call
bpf_setsockopt(), e.g. to switch to another congestion control
algorithm.
Protocols:
- Support IOAM Pre-allocated Trace with IPv6.
- Support Management Component Transport Protocol.
- bridge: multicast: add vlan support.
- netfilter: add hooks for the SRv6 lightweight tunnel driver.
- tcp:
- enable mid-stream window clamping (by user space or BPF)
- allow data-less, empty-cookie SYN with TFO_SERVER_COOKIE_NOT_REQD
- more accurate DSACK processing for RACK-TLP
- mptcp:
- add full mesh path manager option
- add partial support for MP_FAIL
- improve use of backup subflows
- optimize option processing
- af_unix: add OOB notification support.
- ipv6: add IFLA_INET6_RA_MTU to expose MTU value advertised by
the router.
- mac80211: Target Wake Time support in AP mode.
- can: j1939: extend UAPI to notify about RX status.
Driver APIs:
- Add page frag support in page pool API.
- Many improvements to the DSA (distributed switch) APIs.
- ethtool: extend IRQ coalesce uAPI with timer reset modes.
- devlink: control which auxiliary devices are created.
- Support CAN PHYs via the generic PHY subsystem.
- Proper cross-chip support for tag_8021q.
- Allow TX forwarding for the software bridge data path to be
offloaded to capable devices.
Drivers:
- veth: more flexible channels number configuration.
- openvswitch: introduce per-cpu upcall dispatch.
- Add internet mix (IMIX) mode to pktgen.
- Transparently handle XDP operations in the bonding driver.
- Add LiteETH network driver.
- Renesas (ravb):
- support Gigabit Ethernet IP
- NXP Ethernet switch (sja1105)
- fast aging support
- support for "H" switch topologies
- traffic termination for ports under VLAN-aware bridge
- Intel 1G Ethernet
- support getcrosststamp() with PCIe PTM (Precision Time
Measurement) for better time sync
- support Credit-Based Shaper (CBS) offload, enabling HW traffic
prioritization and bandwidth reservation
- Broadcom Ethernet (bnxt)
- support pulse-per-second output
- support larger Rx rings
- Mellanox Ethernet (mlx5)
- support ethtool RSS contexts and MQPRIO channel mode
- support LAG offload with bridging
- support devlink rate limit API
- support packet sampling on tunnels
- Huawei Ethernet (hns3):
- basic devlink support
- add extended IRQ coalescing support
- report extended link state
- Netronome Ethernet (nfp):
- add conntrack offload support
- Broadcom WiFi (brcmfmac):
- add WPA3 Personal with FT to supported cipher suites
- support 43752 SDIO device
- Intel WiFi (iwlwifi):
- support scanning hidden 6GHz networks
- support for a new hardware family (Bz)
- Xen pv driver:
- harden netfront against malicious backends
- Qualcomm mobile
- ipa: refactor power management and enable automatic suspend
- mhi: move MBIM to WWAN subsystem interfaces
Refactor:
- Ambient BPF run context and cgroup storage cleanup.
- Compat rework for ndo_ioctl.
Old code removal:
- prism54 remove the obsoleted driver, deprecated by the p54 driver.
- wan: remove sbni/granch driver.
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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Merge tag 'net-next-5.15' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net-next
Pull networking updates from Jakub Kicinski:
"Core:
- Enable memcg accounting for various networking objects.
BPF:
- Introduce bpf timers.
- Add perf link and opaque bpf_cookie which the program can read out
again, to be used in libbpf-based USDT library.
- Add bpf_task_pt_regs() helper to access user space pt_regs in
kprobes, to help user space stack unwinding.
- Add support for UNIX sockets for BPF sockmap.
- Extend BPF iterator support for UNIX domain sockets.
- Allow BPF TCP congestion control progs and bpf iterators to call
bpf_setsockopt(), e.g. to switch to another congestion control
algorithm.
Protocols:
- Support IOAM Pre-allocated Trace with IPv6.
- Support Management Component Transport Protocol.
- bridge: multicast: add vlan support.
- netfilter: add hooks for the SRv6 lightweight tunnel driver.
- tcp:
- enable mid-stream window clamping (by user space or BPF)
- allow data-less, empty-cookie SYN with TFO_SERVER_COOKIE_NOT_REQD
- more accurate DSACK processing for RACK-TLP
- mptcp:
- add full mesh path manager option
- add partial support for MP_FAIL
- improve use of backup subflows
- optimize option processing
- af_unix: add OOB notification support.
- ipv6: add IFLA_INET6_RA_MTU to expose MTU value advertised by the
router.
- mac80211: Target Wake Time support in AP mode.
- can: j1939: extend UAPI to notify about RX status.
Driver APIs:
- Add page frag support in page pool API.
- Many improvements to the DSA (distributed switch) APIs.
- ethtool: extend IRQ coalesce uAPI with timer reset modes.
- devlink: control which auxiliary devices are created.
- Support CAN PHYs via the generic PHY subsystem.
- Proper cross-chip support for tag_8021q.
- Allow TX forwarding for the software bridge data path to be
offloaded to capable devices.
Drivers:
- veth: more flexible channels number configuration.
- openvswitch: introduce per-cpu upcall dispatch.
- Add internet mix (IMIX) mode to pktgen.
- Transparently handle XDP operations in the bonding driver.
- Add LiteETH network driver.
- Renesas (ravb):
- support Gigabit Ethernet IP
- NXP Ethernet switch (sja1105):
- fast aging support
- support for "H" switch topologies
- traffic termination for ports under VLAN-aware bridge
- Intel 1G Ethernet
- support getcrosststamp() with PCIe PTM (Precision Time
Measurement) for better time sync
- support Credit-Based Shaper (CBS) offload, enabling HW traffic
prioritization and bandwidth reservation
- Broadcom Ethernet (bnxt)
- support pulse-per-second output
- support larger Rx rings
- Mellanox Ethernet (mlx5)
- support ethtool RSS contexts and MQPRIO channel mode
- support LAG offload with bridging
- support devlink rate limit API
- support packet sampling on tunnels
- Huawei Ethernet (hns3):
- basic devlink support
- add extended IRQ coalescing support
- report extended link state
- Netronome Ethernet (nfp):
- add conntrack offload support
- Broadcom WiFi (brcmfmac):
- add WPA3 Personal with FT to supported cipher suites
- support 43752 SDIO device
- Intel WiFi (iwlwifi):
- support scanning hidden 6GHz networks
- support for a new hardware family (Bz)
- Xen pv driver:
- harden netfront against malicious backends
- Qualcomm mobile
- ipa: refactor power management and enable automatic suspend
- mhi: move MBIM to WWAN subsystem interfaces
Refactor:
- Ambient BPF run context and cgroup storage cleanup.
- Compat rework for ndo_ioctl.
Old code removal:
- prism54 remove the obsoleted driver, deprecated by the p54 driver.
- wan: remove sbni/granch driver"
* tag 'net-next-5.15' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net-next: (1715 commits)
net: Add depends on OF_NET for LiteX's LiteETH
ipv6: seg6: remove duplicated include
net: hns3: remove unnecessary spaces
net: hns3: add some required spaces
net: hns3: clean up a type mismatch warning
net: hns3: refine function hns3_set_default_feature()
ipv6: remove duplicated 'net/lwtunnel.h' include
net: w5100: check return value after calling platform_get_resource()
net/mlxbf_gige: Make use of devm_platform_ioremap_resourcexxx()
net: mdio: mscc-miim: Make use of the helper function devm_platform_ioremap_resource()
net: mdio-ipq4019: Make use of devm_platform_ioremap_resource()
fou: remove sparse errors
ipv4: fix endianness issue in inet_rtm_getroute_build_skb()
octeontx2-af: Set proper errorcode for IPv4 checksum errors
octeontx2-af: Fix static code analyzer reported issues
octeontx2-af: Fix mailbox errors in nix_rss_flowkey_cfg
octeontx2-af: Fix loop in free and unmap counter
af_unix: fix potential NULL deref in unix_dgram_connect()
dpaa2-eth: Replace strlcpy with strscpy
octeontx2-af: Use NDC TX for transmit packet data
...
|
||
|
Jonathan Cameron
|
1901f8c9ca |
PCI: Correct the pci_iomap.h header guard #endif comment
Update the include/asm-generic/pci_iomap.h header guard #endif comment to match the corresponding #ifndef. Link: https://lore.kernel.org/r/20210803123014.2963814-1-Jonathan.Cameron@huawei.com Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com> Signed-off-by: Bjorn Helgaas <bhelgaas@google.com> |
||
|
Geert Uytterhoeven
|
c747ce4706 |
ARM: 9117/1: asm-generic: div64: Remove always-true __div64_const32_is_OK()
Since commit
|
||
|
Ingo Molnar
|
c87866ede4 |
Linux 5.14-rc6
-----BEGIN PGP SIGNATURE----- iQFSBAABCAA8FiEEq68RxlopcLEwq+PEeb4+QwBBGIYFAmEZpgUeHHRvcnZhbGRz QGxpbnV4LWZvdW5kYXRpb24ub3JnAAoJEHm+PkMAQRiGhf8H/0RTjPIqTkHU4chH QDMbFGzW3AtUhll6UQXKtkU/WoaIV673PUfqBepn9kSYpB4U3gV69foh/yiRhR9K YgnVb8uO8xMVKSUi2GUjD4hc1Yyey7+S8a+uzTFtyfVv3p7j2+HKJ/sYz3jKshdC 2QajP2YuAD4l86yMs3+Oxy92gwFJnVqw596YsvDk4pq0bIV9XZy/AyTw0I3ipPvl UMCUTMRTv2rX8YHS+nadWrmZlPCKcWeBxIzfbayl51Z1jkIx95QPic2bkDqXJDRS SPij10Nkugr4OpSF4H2KUVOo7IdKzCbH4/Fsk786xxSoiRHcZcX6Ja9l2NcL2rW0 eSNmDb4= =gwko -----END PGP SIGNATURE----- Merge tag 'v5.14-rc6' into locking/core, to pick up fixes Signed-off-by: Ingo Molnar <mingo@kernel.org> |
||
|
Vineet Gupta
|
8f76f9c469 |
bitops/non-atomic: make @nr unsigned to avoid any DIV
signed math causes generation of costlier instructions such as DIV when
they could be done by barrerl shifter.
Worse part is this is not caught by things like bloat-o-meter since
instruction length / symbols are typically same size.
e.g.
stock (signed math)
__________________
919b4614 <test_taint>:
919b4614: div r2,r0,0x20
^^^
919b4618: add2 r2,0x920f6050,r2
919b4620: ld_s r2,[r2,0]
919b4622: lsr r0,r2,r0
919b4626: j_s.d [blink]
919b4628: bmsk_s r0,r0,0
919b462a: nop_s
(patched) unsigned math
__________________
919b4614 <test_taint>:
919b4614: lsr r2,r0,0x5 @nr/32
^^^
919b4618: add2 r2,0x920f6050,r2
919b4620: ld_s r2,[r2,0]
919b4622: lsr r0,r2,r0 #test_bit()
919b4626: j_s.d [blink]
919b4628: bmsk_s r0,r0,0
919b462a: nop_s
Signed-off-by: Vineet Gupta <vgupta@synopsys.com>
Acked-by: Will Deacon <will@kernel.org>
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
|
||
|
Jakub Kicinski
|
f4083a752a |
Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net
Conflicts: drivers/net/ethernet/broadcom/bnxt/bnxt_ptp.h |
||
|
Arnd Bergmann
|
a71bfc0079
|
Merge branch 'asm-generic-uaccess-7' of git://git.kernel.org/pub/scm/linux/kernel/git/arnd/asm-generic into asm-generic
These two functions appear to be unnecessarily different between
architectures, and the asm-generic version is a bit questionable,
even for NOMMU architectures.
Clean this up to just use the generic library version for anything
that uses the generic version today. I've expanded on the patch
descriptions a little, as suggested by Christoph Hellwig, but I
suspect a more detailed review would uncover additional problems
with the custom versions that are getting removed.
I ended up adding patches for csky and microblaze as they had the
same implementation that I removed elsewhere, these are now gone
as well.
* 'asm-generic-uaccess-7' of git://git.kernel.org/pub/scm/linux/kernel/git/arnd/asm-generic:
asm-generic: reverse GENERIC_{STRNCPY_FROM,STRNLEN}_USER symbols
asm-generic: remove extra strn{cpy_from,len}_user declarations
asm-generic: uaccess: remove inline strncpy_from_user/strnlen_user
s390: use generic strncpy/strnlen from_user
microblaze: use generic strncpy/strnlen from_user
csky: use generic strncpy/strnlen from_user
arc: use generic strncpy/strnlen from_user
hexagon: use generic strncpy/strnlen from_user
h8300: remove stale strncpy_from_user
asm-generic/uaccess.h: remove __strncpy_from_user/__strnlen_user
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
|
||
|
Nathan Chancellor
|
848378812e |
vmlinux.lds.h: Handle clang's module.{c,d}tor sections
A recent change in LLVM causes module_{c,d}tor sections to appear when
CONFIG_K{A,C}SAN are enabled, which results in orphan section warnings
because these are not handled anywhere:
ld.lld: warning: arch/x86/pci/built-in.a(legacy.o):(.text.asan.module_ctor) is being placed in '.text.asan.module_ctor'
ld.lld: warning: arch/x86/pci/built-in.a(legacy.o):(.text.asan.module_dtor) is being placed in '.text.asan.module_dtor'
ld.lld: warning: arch/x86/pci/built-in.a(legacy.o):(.text.tsan.module_ctor) is being placed in '.text.tsan.module_ctor'
Fangrui explains: "the function asan.module_ctor has the SHF_GNU_RETAIN
flag, so it is in a separate section even with -fno-function-sections
(default)".
Place them in the TEXT_TEXT section so that these technologies continue
to work with the newer compiler versions. All of the KASAN and KCSAN
KUnit tests continue to pass after this change.
Cc: stable@vger.kernel.org
Link: https://github.com/ClangBuiltLinux/linux/issues/1432
Link:
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Geert Uytterhoeven
|
fc062ad8e4
|
asm-generic: ffs: Drop bogus reference to ffz location
The generic definition of ffz() is not defined in the same header files as the generic definitions of ffs(). Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be> Signed-off-by: Arnd Bergmann <arnd@arndb.de> |
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Mark Rutland
|
9248e52fec |
locking/atomic: simplify non-atomic wrappers
Since the non-atomic arch_*() bitops use plain accesses, they are implicitly instrumnted by the compiler, and we work around this in the instrumented wrappers to avoid double instrumentation. It's simpler to avoid the wrappers entirely, and use the preprocessor to alias the arch_*() bitops to their regular versions, removing the need for checks in the instrumented wrappers. Suggested-by: Marco Elver <elver@google.com> Signed-off-by: Mark Rutland <mark.rutland@arm.com> Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org> Reviewed-by: Marco Elver <elver@google.com> Link: https://lore.kernel.org/r/20210721155813.17082-1-mark.rutland@arm.com |
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Arnd Bergmann
|
98b861a304 |
asm-generic: uaccess: remove inline strncpy_from_user/strnlen_user
The inline version is used on three NOMMU architectures and is particularly inefficient when it scans the string one byte at a time twice. It also lacks a check for user_addr_max(), but this is probably ok on NOMMU targets. Consolidate the asm-generic implementation with the library version that is used everywhere else. This version is generalized enough to work efficiently on both MMU and NOMMU targets, and using the same code everywhere reduces the potential for subtle bugs. Mark the prototypes as __must_check in the process. Reviewed-by: Geert Uytterhoeven <geert@linux-m68k.org> Acked-by: Geert Uytterhoeven <geert@linux-m68k.org> Reviewed-by: Christoph Hellwig <hch@lst.de> Signed-off-by: Arnd Bergmann <arnd@arndb.de> |
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Arnd Bergmann
|
1a33b18b3b |
compat: make linux/compat.h available everywhere
Parts of linux/compat.h are under an #ifdef, but we end up using more of those over time, moving things around bit by bit. To get it over with once and for all, make all of this file uncondititonal now so it can be accessed everywhere. There are only a few types left that are in asm/compat.h but not yet in the asm-generic version, so add those in the process. This requires providing a few more types in asm-generic/compat.h that were not already there. The only tricky one is compat_sigset_t, which needs a little help on 32-bit architectures and for x86. Signed-off-by: Arnd Bergmann <arnd@arndb.de> Reviewed-by: Christoph Hellwig <hch@lst.de> Signed-off-by: David S. Miller <davem@davemloft.net> |
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Arnd Bergmann
|
f27180dd63 |
asm-generic/uaccess.h: remove __strncpy_from_user/__strnlen_user
This is a preparation for changing over architectures to the generic implementation one at a time. As there are no callers of either __strncpy_from_user() or __strnlen_user(), fold these into the strncpy_from_user() and strnlen_user() functions to make each implementation independent of the others. Many of these implementations have known bugs, but the intention here is to not change behavior at all and stay compatible with those bugs for the moment. Reviewed-by: Christoph Hellwig <hch@lst.de> Signed-off-by: Arnd Bergmann <arnd@arndb.de> |
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Chris Down
|
3370155737 |
printk: Userspace format indexing support
We have a number of systems industry-wide that have a subset of their
functionality that works as follows:
1. Receive a message from local kmsg, serial console, or netconsole;
2. Apply a set of rules to classify the message;
3. Do something based on this classification (like scheduling a
remediation for the machine), rinse, and repeat.
As a couple of examples of places we have this implemented just inside
Facebook, although this isn't a Facebook-specific problem, we have this
inside our netconsole processing (for alarm classification), and as part
of our machine health checking. We use these messages to determine
fairly important metrics around production health, and it's important
that we get them right.
While for some kinds of issues we have counters, tracepoints, or metrics
with a stable interface which can reliably indicate the issue, in order
to react to production issues quickly we need to work with the interface
which most kernel developers naturally use when developing: printk.
Most production issues come from unexpected phenomena, and as such
usually the code in question doesn't have easily usable tracepoints or
other counters available for the specific problem being mitigated. We
have a number of lines of monitoring defence against problems in
production (host metrics, process metrics, service metrics, etc), and
where it's not feasible to reliably monitor at another level, this kind
of pragmatic netconsole monitoring is essential.
As one would expect, monitoring using printk is rather brittle for a
number of reasons -- most notably that the message might disappear
entirely in a new version of the kernel, or that the message may change
in some way that the regex or other classification methods start to
silently fail.
One factor that makes this even harder is that, under normal operation,
many of these messages are never expected to be hit. For example, there
may be a rare hardware bug which one wants to detect if it was to ever
happen again, but its recurrence is not likely or anticipated. This
precludes using something like checking whether the printk in question
was printed somewhere fleetwide recently to determine whether the
message in question is still present or not, since we don't anticipate
that it should be printed anywhere, but still need to monitor for its
future presence in the long-term.
This class of issue has happened on a number of occasions, causing
unhealthy machines with hardware issues to remain in production for
longer than ideal. As a recent example, some monitoring around
blk_update_request fell out of date and caused semi-broken machines to
remain in production for longer than would be desirable.
Searching through the codebase to find the message is also extremely
fragile, because many of the messages are further constructed beyond
their callsite (eg. btrfs_printk and other module-specific wrappers,
each with their own functionality). Even if they aren't, guessing the
format and formulation of the underlying message based on the aesthetics
of the message emitted is not a recipe for success at scale, and our
previous issues with fleetwide machine health checking demonstrate as
much.
This provides a solution to the issue of silently changed or deleted
printks: we record pointers to all printk format strings known at
compile time into a new .printk_index section, both in vmlinux and
modules. At runtime, this can then be iterated by looking at
<debugfs>/printk/index/<module>, which emits the following format, both
readable by humans and able to be parsed by machines:
$ head -1 vmlinux; shuf -n 5 vmlinux
# <level[,flags]> filename:line function "format"
<5> block/blk-settings.c:661 disk_stack_limits "%s: Warning: Device %s is misaligned\n"
<4> kernel/trace/trace.c:8296 trace_create_file "Could not create tracefs '%s' entry\n"
<6> arch/x86/kernel/hpet.c:144 _hpet_print_config "hpet: %s(%d):\n"
<6> init/do_mounts.c:605 prepare_namespace "Waiting for root device %s...\n"
<6> drivers/acpi/osl.c:1410 acpi_no_auto_serialize_setup "ACPI: auto-serialization disabled\n"
This mitigates the majority of cases where we have a highly-specific
printk which we want to match on, as we can now enumerate and check
whether the format changed or the printk callsite disappeared entirely
in userspace. This allows us to catch changes to printks we monitor
earlier and decide what to do about it before it becomes problematic.
There is no additional runtime cost for printk callers or printk itself,
and the assembly generated is exactly the same.
Signed-off-by: Chris Down <chris@chrisdown.name>
Cc: Petr Mladek <pmladek@suse.com>
Cc: Jessica Yu <jeyu@kernel.org>
Cc: Sergey Senozhatsky <sergey.senozhatsky@gmail.com>
Cc: John Ogness <john.ogness@linutronix.de>
Cc: Steven Rostedt <rostedt@goodmis.org>
Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Cc: Johannes Weiner <hannes@cmpxchg.org>
Cc: Kees Cook <keescook@chromium.org>
Reviewed-by: Petr Mladek <pmladek@suse.com>
Tested-by: Petr Mladek <pmladek@suse.com>
Reported-by: kernel test robot <lkp@intel.com>
Acked-by: Andy Shevchenko <andy.shevchenko@gmail.com>
Acked-by: Jessica Yu <jeyu@kernel.org> # for module.{c,h}
Signed-off-by: Petr Mladek <pmladek@suse.com>
Link: https://lore.kernel.org/r/e42070983637ac5e384f17fbdbe86d19c7b212a5.1623775748.git.chris@chrisdown.name
|
||
|
Michael Kelley
|
31e5e64694 |
drivers: hv: Decouple Hyper-V clock/timer code from VMbus drivers
Hyper-V clock/timer code in hyperv_timer.c is mostly independent from other VMbus drivers, but building for ARM64 without hyperv_timer.c shows some remaining entanglements. A default implementation of hv_read_reference_counter can just read a Hyper-V synthetic register and be independent of hyperv_timer.c, so move this code out and into hv_common.c. Then it can be used by the timesync driver even if hyperv_timer.c isn't built on a particular architecture. If hyperv_timer.c *is* built, it can override with a faster implementation. Also provide stubs for stimer functions called by the VMbus driver when hyperv_timer.c isn't built. No functional changes. Signed-off-by: Michael Kelley <mikelley@microsoft.com> Link: https://lore.kernel.org/r/1626220906-22629-1-git-send-email-mikelley@microsoft.com Signed-off-by: Wei Liu <wei.liu@kernel.org> |
||
|
Mark Rutland
|
cf3ee3c8c2 |
locking/atomic: add generic arch_*() bitops
Now that all architectures provide arch_atomic_long_*(), we can implement the generic bitops atop these rather than atop atomic_long_*(), and provide arch_*() forms of the bitops that are safe to use in noinstr code. Now that all architectures provide arch_atomic_long_*(), we can build the generic arch_*() bitops atop these, which can be safely used in noinstr code. The regular bitop wrappers are built atop these. As the generic non-atomic bitops use plain accesses, these will be implicitly instrumented unless they are inlined into noinstr functions (which is similar to arch_atomic*_read() when based on READ_ONCE()). The wrappers are modified so that where the underlying arch_*() function uses a plain access, no explicit instrumentation is added, as this is redundant and could result in confusing reports. Since function prototypes get excessively long with both an `arch_` prefix and `__always_inline` attribute, the return type and function attributes have been split onto a separate line, matching the style of the generated atomic headers. Signed-off-by: Mark Rutland <mark.rutland@arm.com> Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org> Link: https://lore.kernel.org/r/20210713105253.7615-6-mark.rutland@arm.com |
||
|
Mark Rutland
|
e3d18cee25 |
locking/atomic: centralize generated headers
The generated atomic headers are only intended to be included directly by <linux/atomic.h>, but are spread across include/linux/ and include/asm-generic/, where people mnay be encouraged to include them. This patch centralizes them under include/linux/atomic/. Other than the header guards and hashes, there is no change to any of the generated headers as a result of this patch. Signed-off-by: Mark Rutland <mark.rutland@arm.com> Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org> Link: https://lore.kernel.org/r/20210713105253.7615-4-mark.rutland@arm.com |
||
|
Michael Kelley
|
afca4d95dd |
Drivers: hv: Make portions of Hyper-V init code be arch neutral
The code to allocate and initialize the hv_vp_index array is architecture neutral. Similarly, the code to allocate and populate the hypercall input and output arg pages is architecture neutral. Move both sets of code out from arch/x86 and into utility functions in drivers/hv/hv_common.c that can be shared by Hyper-V initialization on ARM64. No functional changes. However, the allocation of the hypercall input and output arg pages is done differently so that the size is always the Hyper-V page size, even if not the same as the guest page size (such as with ARM64's 64K page size). Signed-off-by: Michael Kelley <mikelley@microsoft.com> Link: https://lore.kernel.org/r/1626287687-2045-2-git-send-email-mikelley@microsoft.com Signed-off-by: Wei Liu <wei.liu@kernel.org> |
||
|
Michael Kelley
|
ba3f5839fb |
asm-generic/hyperv: Add missing #include of nmi.h
The recent move of hv_do_rep_hypercall() to this file adds a reference to touch_nmi_watchdog(). Its function definition is included indirectly when compiled on x86, but not when compiled on ARM64. So add the explicit #include. No functional change. Signed-off-by: Michael Kelley <mikelley@microsoft.com> Link: https://lore.kernel.org/r/1626058204-2106-1-git-send-email-mikelley@microsoft.com Signed-off-by: Wei Liu <wei.liu@kernel.org> |
||
|
Linus Torvalds
|
dcf3c935dd |
This pull request contains the following changes for UML:
- Support for optimized routines based on the host CPU - Support for PCI via virtio - Various fixes -----BEGIN PGP SIGNATURE----- iQJKBAABCAA0FiEEdgfidid8lnn52cLTZvlZhesYu8EFAmDnZwAWHHJpY2hhcmRA c2lnbWEtc3Rhci5hdAAKCRBm+VmF6xi7wW1BD/9SHWGYhxLY+xL27eO0Q8XOPePb diqllGavzq3fcakmJ3+6iIpb/WYX0ztu1M4KMBRP3QxNjP6nFkS1ph3PC0LL3ec2 h23hRfOrhlQd4rdonPcq/Z7oXKhrkem9G6KneVfvB94HmXnaZIrNBjwQRy0uRMXE /IVNH4o6YMR8Av/VrG+L6BS+O/oXVnYVSLOuXsIrxmxS24NybsOpRzHvl14ZUsHt eiwzcRC3ugAaxJn8cOSrHdBwvdOgbFFWEtMITcesQpYru+EmQcsCZdmJ0DbwsV2e 9k+LrVoy0CZFoekBtaaFvZq+JVBjUZKoAUYBML4ejWnQKolJH0BZQRh4RT0rbTjc UMiuE3kFUsdJjzJRyO4pcqpwaNhCiZ2XrwyKeev/FLIn95bD1xbLJWfRvoKhioiI X+1vujN2+N5n8T+u8sCVohujJCkUkMjevfF6ew8rvYOj3FrGqTi4jgrXUFAIsjLa mHdA92oHIjNOCjyVIqnoUFTDltVMW9CwnLtd5nPnGvJoMtsj7lthy6fdtdPH0WVu iNR4toE/AjBJo4rtib/irYbZtqmw2AbBFqoRk4yj8Fw4ZdSPYELwAR1aah0Oce9R t1T9OE66vlr28XIC0NF917JfSNkc2eXnx4B21Zh+a/68XSJ1FzXPTob3lvXVVhQR Ou4aw6dH7mql/2bq1w== =wAww -----END PGP SIGNATURE----- Merge tag 'for-linus-5.14-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/rw/uml Pull UML updates from Richard Weinberger: - Support for optimized routines based on the host CPU - Support for PCI via virtio - Various fixes * tag 'for-linus-5.14-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/rw/uml: um: remove unneeded semicolon in um_arch.c um: Remove the repeated declaration um: fix error return code in winch_tramp() um: fix error return code in slip_open() um: Fix stack pointer alignment um: implement flush_cache_vmap/flush_cache_vunmap um: add a UML specific futex implementation um: enable the use of optimized xor routines in UML um: Add support for host CPU flags and alignment um: allow not setting extra rpaths in the linux binary um: virtio/pci: enable suspend/resume um: add PCI over virtio emulation driver um: irqs: allow invoking time-travel handler multiple times um: time-travel/signals: fix ndelay() in interrupt um: expose time-travel mode to userspace side um: export signals_enabled directly um: remove unused smp_sigio_handler() declaration lib: add iomem emulation (logic_iomem) um: allow disabling NO_IOMEM |
||
|
Aneesh Kumar K.V
|
dc4875f0e7 |
mm: rename p4d_page_vaddr to p4d_pgtable and make it return pud_t *
No functional change in this patch. [aneesh.kumar@linux.ibm.com: m68k build error reported by kernel robot] Link: https://lkml.kernel.org/r/87tulxnb2v.fsf@linux.ibm.com Link: https://lkml.kernel.org/r/20210615110859.320299-2-aneesh.kumar@linux.ibm.com Link: https://lore.kernel.org/linuxppc-dev/CAHk-=wi+J+iodze9FtjM3Zi4j4OeS+qqbKxME9QN4roxPEXH9Q@mail.gmail.com/ Signed-off-by: Aneesh Kumar K.V <aneesh.kumar@linux.ibm.com> Cc: Christophe Leroy <christophe.leroy@csgroup.eu> Cc: Hugh Dickins <hughd@google.com> Cc: Joel Fernandes <joel@joelfernandes.org> Cc: Kalesh Singh <kaleshsingh@google.com> Cc: Kirill A. Shutemov <kirill.shutemov@linux.intel.com> Cc: Michael Ellerman <mpe@ellerman.id.au> Cc: Nicholas Piggin <npiggin@gmail.com> Cc: Stephen Rothwell <sfr@canb.auug.org.au> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> |