Commit Graph

932869 Commits (d1739eabdd9600569ff2da170b3baf343263f952)

Author SHA1 Message Date
John Fastabend 1d9c037a89 bpf, selftests: Add sk_msg helpers load and attach test
The test itself is not particularly useful but it encodes a common
pattern we have.

Namely do a sk storage lookup then depending on data here decide if
we need to do more work or alternatively allow packet to PASS. Then
if we need to do more work consult task_struct for more information
about the running task. Finally based on this additional information
drop or pass the data. In this case the suspicious check is not so
realisitic but it encodes the general pattern and uses the helpers
so we test the workflow.

This is a load test to ensure verifier correctly handles this case.

Signed-off-by: John Fastabend <john.fastabend@gmail.com>
Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
Acked-by: Andrii Nakryiko <andriin@fb.com>
Link: https://lore.kernel.org/bpf/159033909665.12355.6166415847337547879.stgit@john-Precision-5820-Tower
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
2020-06-01 14:38:20 -07:00
John Fastabend 13d70f5a5e bpf, sk_msg: Add get socket storage helpers
Add helpers to use local socket storage.

Signed-off-by: John Fastabend <john.fastabend@gmail.com>
Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
Acked-by: Yonghong Song <yhs@fb.com>
Link: https://lore.kernel.org/bpf/159033907577.12355.14740125020572756560.stgit@john-Precision-5820-Tower
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
2020-06-01 14:38:20 -07:00
John Fastabend f470378c75 bpf: Extend bpf_base_func_proto helpers with probe_* and *current_task*
Often it is useful when applying policy to know something about the
task. If the administrator has CAP_SYS_ADMIN rights then they can
use kprobe + networking hook and link the two programs together to
accomplish this. However, this is a bit clunky and also means we have
to call both the network program and kprobe program when we could just
use a single program and avoid passing metadata through sk_msg/skb->cb,
socket, maps, etc.

To accomplish this add probe_* helpers to bpf_base_func_proto programs
guarded by a perfmon_capable() check. New supported helpers are the
following,

 BPF_FUNC_get_current_task
 BPF_FUNC_probe_read_user
 BPF_FUNC_probe_read_kernel
 BPF_FUNC_probe_read_user_str
 BPF_FUNC_probe_read_kernel_str

Signed-off-by: John Fastabend <john.fastabend@gmail.com>
Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
Acked-by: Yonghong Song <yhs@fb.com>
Link: https://lore.kernel.org/bpf/159033905529.12355.4368381069655254932.stgit@john-Precision-5820-Tower
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
2020-06-01 14:38:20 -07:00
John Fastabend abe3cac870 bpf, sk_msg: Add some generic helpers that may be useful from sk_msg
Add these generic helpers that may be useful to use from sk_msg programs.
The helpers do not depend on ctx so we can simply add them here,

 BPF_FUNC_perf_event_output
 BPF_FUNC_get_current_uid_gid
 BPF_FUNC_get_current_pid_tgid
 BPF_FUNC_get_current_cgroup_id
 BPF_FUNC_get_current_ancestor_cgroup_id
 BPF_FUNC_get_cgroup_classid

Signed-off-by: John Fastabend <john.fastabend@gmail.com>
Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
Acked-by: Yonghong Song <yhs@fb.com>
Link: https://lore.kernel.org/bpf/159033903373.12355.15489763099696629346.stgit@john-Precision-5820-Tower
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
2020-06-01 14:38:20 -07:00
Yauheni Kaliuta 55983299b7 libbpf: Use .so dynamic symbols for abi check
Since dynamic symbols are used for dynamic linking it makes sense to
use them (readelf --dyn-syms) for abi check.

Found with some configuration on powerpc where linker puts
local *.plt_call.* symbols into .so.

Signed-off-by: Yauheni Kaliuta <yauheni.kaliuta@redhat.com>
Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
Acked-by: Andrii Nakryiko <andriin@fb.com>
Link: https://lore.kernel.org/bpf/20200525061846.16524-1-yauheni.kaliuta@redhat.com
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
2020-06-01 14:38:20 -07:00
Chris Packham 0142dddcbe bpf: Fix spelling in comment explaining ARG1 in ___bpf_prog_run
Change 'handeled' to 'handled'.

Signed-off-by: Chris Packham <chris.packham@alliedtelesis.co.nz>
Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
Link: https://lore.kernel.org/bpf/20200525230025.14470-1-chris.packham@alliedtelesis.co.nz
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
2020-06-01 14:38:20 -07:00
Nikolay Borisov 93581359e7 libbpf: Install headers as part of make install
Current 'make install' results in only pkg-config and library binaries
being installed. For consistency also install headers as part of
"make install"

Signed-off-by: Nikolay Borisov <nborisov@suse.com>
Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
Acked-by: Andrii Nakryiko <andriin@fb.com>
Link: https://lore.kernel.org/bpf/20200526174612.5447-1-nborisov@suse.com
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
2020-06-01 14:38:20 -07:00
Eelco Chaudron 272d51af32 libbpf: Add API to consume the perf ring buffer content
This new API, perf_buffer__consume, can be used as follows:

- When you have a perf ring where wakeup_events is higher than 1,
  and you have remaining data in the rings you would like to pull
  out on exit (or maybe based on a timeout).

- For low latency cases where you burn a CPU that constantly polls
  the queues.

Signed-off-by: Eelco Chaudron <echaudro@redhat.com>
Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
Acked-by: Andrii Nakryiko <andriin@fb.com>
Link: https://lore.kernel.org/bpf/159048487929.89441.7465713173442594608.stgit@ebuild
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
2020-06-01 14:38:19 -07:00
Lukas Bulwahn 2b983b407a MAINTAINERS: Adjust entry in XDP SOCKETS to actual file name
Commit 2b43470add ("xsk: Introduce AF_XDP buffer allocation API") added a
new header file include/net/xsk_buff_pool.h, but commit 28bee21dc0
("MAINTAINERS, xsk: Update AF_XDP section after moves/adds") added a file
entry referring to include/net/xsk_buffer_pool.h.

Hence, ./scripts/get_maintainer.pl --self-test=patterns complains:

  warning: no file matches  F:  include/net/xsk_buffer_pool.h

Adjust the entry in XDP SOCKETS to the actual file name.

Signed-off-by: Lukas Bulwahn <lukas.bulwahn@gmail.com>
Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
Link: https://lore.kernel.org/bpf/20200525141553.7035-1-lukas.bulwahn@gmail.com
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
2020-06-01 14:38:19 -07:00
Jakub Sitnicki fe537393b5 bpf: Fix returned error sign when link doesn't support updates
System calls encode returned errors as negative values. Fix a typo that
breaks this convention for bpf(LINK_UPDATE) when bpf_link doesn't support
update operation.

Fixes: f9d041271c ("bpf: Refactor bpf_link update handling")
Signed-off-by: Jakub Sitnicki <jakub@cloudflare.com>
Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
Link: https://lore.kernel.org/bpf/20200525122928.1164495-1-jakub@cloudflare.com
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
2020-06-01 14:38:19 -07:00
Tobias Klauser dc3ca5cf3e tools, bpftool: Print correct error message when failing to load BTF
btf__parse_raw and btf__parse_elf return negative error numbers wrapped
in an ERR_PTR, so the extracted value needs to be negated before passing
them to strerror which expects a positive error number.

Before:
  Error: failed to load BTF from .../vmlinux: Unknown error -2

After:
  Error: failed to load BTF from .../vmlinux: No such file or directory

Signed-off-by: Tobias Klauser <tklauser@distanz.ch>
Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
Link: https://lore.kernel.org/bpf/20200525135421.4154-1-tklauser@distanz.ch
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
2020-06-01 14:38:19 -07:00
Quentin Monnet 73a4f0407e tools, bpftool: Make capability check account for new BPF caps
Following the introduction of CAP_BPF, and the switch from CAP_SYS_ADMIN
to other capabilities for various BPF features, update the capability
checks (and potentially, drops) in bpftool for feature probes. Because
bpftool and/or the system might not know of CAP_BPF yet, some caution is
necessary:

- If compiled and run on a system with CAP_BPF, check CAP_BPF,
  CAP_SYS_ADMIN, CAP_PERFMON, CAP_NET_ADMIN.

- Guard against CAP_BPF being undefined, to allow compiling bpftool from
  latest sources on older systems. If the system where feature probes
  are run does not know of CAP_BPF, stop checking after CAP_SYS_ADMIN,
  as this should be the only capability required for all the BPF
  probing.

- If compiled from latest sources on a system without CAP_BPF, but later
  executed on a newer system with CAP_BPF knowledge, then we only test
  CAP_SYS_ADMIN. Some probes may fail if the bpftool process has
  CAP_SYS_ADMIN but misses the other capabilities. The alternative would
  be to redefine the value for CAP_BPF in bpftool, but this does not
  look clean, and the case sounds relatively rare anyway.

Note that libcap offers a cap_to_name() function to retrieve the name of
a given capability (e.g. "cap_sys_admin"). We do not use it because
deriving the names from the macros looks simpler than using
cap_to_name() (doing a strdup() on the string) + cap_free() + handling
the case of failed allocations, when we just want to use the name of the
capability in an error message.

The checks when compiling without libcap (i.e. root versus non-root) are
unchanged.

v2:
- Do not allocate cap_list dynamically.
- Drop BPF-related capabilities when running with "unprivileged", even
  if we didn't have the full set in the first place (in v1, we would
  skip dropping them in that case).
- Keep track of what capabilities we have, print the names of the
  missing ones for privileged probing.
- Attempt to drop only the capabilities we actually have.
- Rename a couple variables.

Signed-off-by: Quentin Monnet <quentin@isovalent.com>
Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
Link: https://lore.kernel.org/bpf/20200523010247.20654-1-quentin@isovalent.com
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
2020-06-01 14:38:19 -07:00
Quentin Monnet 90040351a8 tools, bpftool: Clean subcommand help messages
This is a clean-up for the formatting of the do_help functions for
bpftool's subcommands. The following fixes are included:

- Do not use argv[-2] for "iter" help message, as the help is shown by
  default if no "iter" action is selected, resulting in messages looking
  like "./bpftool bpftool pin...".

- Do not print unused HELP_SPEC_PROGRAM in help message for "bpftool
  link".

- Andrii used argument indexing to avoid having multiple occurrences of
  bin_name and argv[-2] in the fprintf() for the help message, for
  "bpftool gen" and "bpftool link". Let's reuse this for all other help
  functions. We can remove up to thirty arguments for the "bpftool map"
  help message.

- Harmonise all functions, e.g. use ending quotes-comma on a separate
  line.

Signed-off-by: Quentin Monnet <quentin@isovalent.com>
Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
Link: https://lore.kernel.org/bpf/20200523010751.23465-1-quentin@isovalent.com
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
2020-06-01 14:38:18 -07:00
Ilya Dryomov dc1dad8e1a rbd: compression_hint option
Allow hinting to bluestore if the data should/should not be compressed.
The default is to not hint (compression_hint=none).

Signed-off-by: Ilya Dryomov <idryomov@gmail.com>
Reviewed-by: Jason Dillaman <dillaman@redhat.com>
2020-06-01 23:32:35 +02:00
Ilya Dryomov d3798acc09 libceph: support for alloc hint flags
Allow indicating future I/O pattern via flags.  This is supported since
Kraken (and bluestore persists flags together with expected_object_size
and expected_write_size).

Signed-off-by: Ilya Dryomov <idryomov@gmail.com>
Reviewed-by: Jason Dillaman <dillaman@redhat.com>
2020-06-01 23:32:35 +02:00
Linus Torvalds 0a319ef75d Most of the changes here related to 'XSAVES supervisor state' support,
which is a feature that allows kernel-only data to be automatically
 saved/restored by the FPU context switching code.
 
 CPU features that can be supported this way are Intel PT, 'PASID' and
 CET features.
 
 Signed-off-by: Ingo Molnar <mingo@kernel.org>
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Merge tag 'x86-fpu-2020-06-01' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip

Pull x86 FPU updates from Ingo Molnar:
 "Most of the changes here related to 'XSAVES supervisor state' support,
  which is a feature that allows kernel-only data to be automatically
  saved/restored by the FPU context switching code.

  CPU features that can be supported this way are Intel PT, 'PASID' and
  CET features"

* tag 'x86-fpu-2020-06-01' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
  x86/fpu/xstate: Restore supervisor states for signal return
  x86/fpu/xstate: Preserve supervisor states for the slow path in __fpu__restore_sig()
  x86/fpu: Introduce copy_supervisor_to_kernel()
  x86/fpu/xstate: Update copy_kernel_to_xregs_err() for supervisor states
  x86/fpu/xstate: Update sanitize_restored_xstate() for supervisor xstates
  x86/fpu/xstate: Define new functions for clearing fpregs and xstates
  x86/fpu/xstate: Introduce XSAVES supervisor states
  x86/fpu/xstate: Separate user and supervisor xfeatures mask
  x86/fpu/xstate: Define new macros for supervisor and user xstates
  x86/fpu/xstate: Rename validate_xstate_header() to validate_user_xstate_header()
2020-06-01 14:09:26 -07:00
Helge Deller 775024cf49 parisc: MAINTAINERS: Update references to parisc website
The PA-RISC Linux project web page is now hosted at
https://parisc.wiki.kernel.org

Signed-off-by: Helge Deller <deller@gmx.de>
2020-06-01 23:03:27 +02:00
Helge Deller 486a77c903 parisc: module: Update references to parisc website
The PA-RISC Linux project web page is now hosted at
https://parisc.wiki.kernel.org

Signed-off-by: Helge Deller <deller@gmx.de>
2020-06-01 23:03:04 +02:00
Helge Deller 186cbb1737 parisc: hardware: Update references to parisc website
The PA-RISC Linux project web page is now hosted at
https://parisc.wiki.kernel.org

Signed-off-by: Helge Deller <deller@gmx.de>
2020-06-01 23:02:39 +02:00
Helge Deller 861e93cf88 parisc: firmware: Update references to parisc website
The PA-RISC Linux project web page is now hosted at
https://parisc.wiki.kernel.org

Signed-off-by: Helge Deller <deller@gmx.de>
2020-06-01 23:02:11 +02:00
Helge Deller 24289f5601 parisc: Kconfig: Update references to parisc website
The PA-RISC Linux project web page is now hosted at
https://parisc.wiki.kernel.org

Signed-off-by: Helge Deller <deller@gmx.de>
2020-06-01 23:00:52 +02:00
Linus Torvalds eff5ddadab Misc updates:
- Extend the x86 family/model macros with a steppings dimension,
    because x86 life isn't complex enough and Intel uses steppings to
    differentiate between different CPUs. :-/
 
  - Convert the TSC deadline timer quirks to the steppings macros.
 
  - Clean up asm mnemonics.
 
  - Fix the handling of an AMD erratum, or in other words, fix a kernel erratum.
 
 Signed-off-by: Ingo Molnar <mingo@kernel.org>
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Merge tag 'x86-cpu-2020-06-01' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip

Pull x86 cpu updates from Ingo Molnar:
 "Misc updates:

   - Extend the x86 family/model macros with a steppings dimension,
     because x86 life isn't complex enough and Intel uses steppings to
     differentiate between different CPUs. :-/

   - Convert the TSC deadline timer quirks to the steppings macros.

   - Clean up asm mnemonics.

   - Fix the handling of an AMD erratum, or in other words, fix a kernel
     erratum"

* tag 'x86-cpu-2020-06-01' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
  x86/cpu: Use RDRAND and RDSEED mnemonics in archrandom.h
  x86/cpu: Use INVPCID mnemonic in invpcid.h
  x86/cpu/amd: Make erratum #1054 a legacy erratum
  x86/apic: Convert the TSC deadline timer matching to steppings macro
  x86/cpu: Add a X86_MATCH_INTEL_FAM6_MODEL_STEPPINGS() macro
  x86/cpu: Add a steppings field to struct x86_cpu_id
2020-06-01 13:57:51 -07:00
Linus Torvalds 17e0a7cb6a Misc cleanups, with an emphasis on removing obsolete/dead code.
Signed-off-by: Ingo Molnar <mingo@kernel.org>
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Merge tag 'x86-cleanups-2020-06-01' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip

Pull x86 cleanups from Ingo Molnar:
 "Misc cleanups, with an emphasis on removing obsolete/dead code"

* tag 'x86-cleanups-2020-06-01' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
  x86/spinlock: Remove obsolete ticket spinlock macros and types
  x86/mm: Drop deprecated DISCONTIGMEM support for 32-bit
  x86/apb_timer: Drop unused declaration and macro
  x86/apb_timer: Drop unused TSC calibration
  x86/io_apic: Remove unused function mp_init_irq_at_boot()
  x86/mm: Stop printing BRK addresses
  x86/audit: Fix a -Wmissing-prototypes warning for ia32_classify_syscall()
  x86/nmi: Remove edac.h include leftover
  mm: Remove MPX leftovers
  x86/mm/mmap: Fix -Wmissing-prototypes warnings
  x86/early_printk: Remove unused includes
  crash_dump: Remove no longer used saved_max_pfn
  x86/smpboot: Remove the last ICPU() macro
2020-06-01 13:47:10 -07:00
Linus Torvalds bb548bedf5 Misc dependency fixes, plus a documentation update about memory protection keys support.
Signed-off-by: Ingo Molnar <mingo@kernel.org>
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Merge tag 'x86-build-2020-06-01' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip

Pull x86 build updates from Ingo Molnar:
 "Misc dependency fixes, plus a documentation update about memory
  protection keys support"

* tag 'x86-build-2020-06-01' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
  x86/Kconfig: Update config and kernel doc for MPK feature on AMD
  x86/boot: Discard .discard.unreachable for arch/x86/boot/compressed/vmlinux
  x86/boot/build: Add phony targets in arch/x86/boot/Makefile to PHONY
  x86/boot/build: Make 'make bzlilo' not depend on vmlinux or $(obj)/bzImage
  x86/boot/build: Add cpustr.h to targets and remove clean-files
2020-06-01 13:45:59 -07:00
Linus Torvalds ae1a4113c2 Misc updates:
- Add the initrdmem= boot option to specify an initrd embedded in RAM (flash most likely)
  - Sanitize the CS value earlier during boot, which also fixes SEV-ES.
  - Various fixes and smaller cleanups.
 
 Signed-off-by: Ingo Molnar <mingo@kernel.org>
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Merge tag 'x86-boot-2020-06-01' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip

Pull x86 boot updates from Ingo Molnar:
 "Misc updates:

   - Add the initrdmem= boot option to specify an initrd embedded in RAM
     (flash most likely)

   - Sanitize the CS value earlier during boot, which also fixes SEV-ES

   - Various fixes and smaller cleanups"

* tag 'x86-boot-2020-06-01' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
  x86/boot: Correct relocation destination on old linkers
  x86/boot/compressed/64: Switch to __KERNEL_CS after GDT is loaded
  x86/boot: Fix -Wint-to-pointer-cast build warning
  x86/boot: Add kstrtoul() from lib/
  x86/tboot: Mark tboot static
  x86/setup: Add an initrdmem= option to specify initrd physical address
2020-06-01 13:44:28 -07:00
Linus Torvalds d861f6e682 Misc cleanups in the SMP hotplug and cross-call code.
Signed-off-by: Ingo Molnar <mingo@kernel.org>
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Merge tag 'smp-core-2020-06-01' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip

Pull SMP updates from Ingo Molnar:
 "Misc cleanups in the SMP hotplug and cross-call code"

* tag 'smp-core-2020-06-01' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
  cpu/hotplug: Remove __freeze_secondary_cpus()
  cpu/hotplug: Remove disable_nonboot_cpus()
  cpu/hotplug: Fix a typo in comment "broadacasted"->"broadcasted"
  smp: Use smp_call_func_t in on_each_cpu()
2020-06-01 13:38:55 -07:00
Linus Torvalds 58ff3b7604 The EFI changes for this cycle are:
- preliminary changes for RISC-V
  - Add support for setting the resolution on the EFI framebuffer
  - Simplify kernel image loading for arm64
  - Move .bss into .data via the linker script instead of relying on symbol
    annotations.
  - Get rid of __pure getters to access global variables
  - Clean up the config table matching arrays
  - Rename pr_efi/pr_efi_err to efi_info/efi_err, and use them consistently
  - Simplify and unify initrd loading
  - Parse the builtin command line on x86 (if provided)
  - Implement printk() support, including support for wide character strings
  - Simplify GDT handling in early mixed mode thunking code
  - Some other minor fixes and cleanups
 
 Signed-off-by: Ingo Molnar <mingo@kernel.org>
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Merge tag 'efi-core-2020-06-01' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip

Pull EFI updates from Ingo Molnar:
 "The EFI changes for this cycle are:

   - preliminary changes for RISC-V

   - Add support for setting the resolution on the EFI framebuffer

   - Simplify kernel image loading for arm64

   - Move .bss into .data via the linker script instead of relying on
     symbol annotations.

   - Get rid of __pure getters to access global variables

   - Clean up the config table matching arrays

   - Rename pr_efi/pr_efi_err to efi_info/efi_err, and use them
     consistently

   - Simplify and unify initrd loading

   - Parse the builtin command line on x86 (if provided)

   - Implement printk() support, including support for wide character
     strings

   - Simplify GDT handling in early mixed mode thunking code

   - Some other minor fixes and cleanups"

* tag 'efi-core-2020-06-01' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: (79 commits)
  efi/x86: Don't blow away existing initrd
  efi/x86: Drop the special GDT for the EFI thunk
  efi/libstub: Add missing prototype for PE/COFF entry point
  efi/efivars: Add missing kobject_put() in sysfs entry creation error path
  efi/libstub: Use pool allocation for the command line
  efi/libstub: Don't parse overlong command lines
  efi/libstub: Use snprintf with %ls to convert the command line
  efi/libstub: Get the exact UTF-8 length
  efi/libstub: Use %ls for filename
  efi/libstub: Add UTF-8 decoding to efi_puts
  efi/printf: Add support for wchar_t (UTF-16)
  efi/gop: Add an option to list out the available GOP modes
  efi/libstub: Add definitions for console input and events
  efi/libstub: Implement printk-style logging
  efi/printf: Turn vsprintf into vsnprintf
  efi/printf: Abort on invalid format
  efi/printf: Refactor code to consolidate padding and output
  efi/printf: Handle null string input
  efi/printf: Factor out integer argument retrieval
  efi/printf: Factor out width/precision parsing
  ...
2020-06-01 13:35:27 -07:00
Anders Roxell 6d6861d45e security: apparmor: default KUNIT_* fragments to KUNIT_ALL_TESTS
This makes it easier to enable all KUnit fragments.

Adding 'if !KUNIT_ALL_TESTS' so individual tests can not be turned off.
Therefore if KUNIT_ALL_TESTS is enabled that will hide the prompt in
menuconfig.

Reviewed-by: David Gow <davidgow@google.com>
Signed-off-by: Anders Roxell <anders.roxell@linaro.org>
Acked-by: John Johansen <john.johansen@canonical.com>
Signed-off-by: Shuah Khan <skhan@linuxfoundation.org>
2020-06-01 14:25:15 -06:00
Anders Roxell d194e12b3e fs: ext4: default KUNIT_* fragments to KUNIT_ALL_TESTS
This makes it easier to enable all KUnit fragments.

Adding 'if !KUNIT_ALL_TESTS' so individual tests can not be turned off.
Therefore if KUNIT_ALL_TESTS is enabled that will hide the prompt in
menuconfig.

Reviewed-by: David Gow <davidgow@google.com>
Signed-off-by: Anders Roxell <anders.roxell@linaro.org>
Signed-off-by: Shuah Khan <skhan@linuxfoundation.org>
2020-06-01 14:24:58 -06:00
Anders Roxell bebe94b53e drivers: base: default KUNIT_* fragments to KUNIT_ALL_TESTS
This makes it easier to enable all KUnit fragments.

Adding 'if !KUNIT_ALL_TESTS' so individual tests can not be turned off.
Therefore if KUNIT_ALL_TESTS is enabled that will hide the prompt in
menuconfig.

Reviewed-by: David Gow <davidgow@google.com>
Signed-off-by: Anders Roxell <anders.roxell@linaro.org>
Signed-off-by: Shuah Khan <skhan@linuxfoundation.org>
2020-06-01 14:24:25 -06:00
Linus Torvalds a7092c8204 Kernel side changes:
- Add AMD Fam17h RAPL support
   - Introduce CAP_PERFMON to kernel and user space
   - Add Zhaoxin CPU support
   - Misc fixes and cleanups
 
 Tooling changes:
 
   perf record:
 
     - Introduce --switch-output-event to use arbitrary events to be setup
       and read from a side band thread and, when they take place a signal
       be sent to the main 'perf record' thread, reusing the --switch-output
       code to take perf.data snapshots from the --overwrite ring buffer, e.g.:
 
 	# perf record --overwrite -e sched:* \
 		      --switch-output-event syscalls:*connect* \
 		      workload
 
       will take perf.data.YYYYMMDDHHMMSS snapshots up to around the
       connect syscalls.
 
     - Add --num-synthesize-threads option to control degree of parallelism of the
       synthesize_mmap() code which is scanning /proc/PID/task/PID/maps and can be
       time consuming. This mimics pre-existing behaviour in 'perf top'.
 
   perf bench:
 
     - Add a multi-threaded synthesize benchmark.
     - Add kallsyms parsing benchmark.
 
   Intel PT support:
 
     - Stitch LBR records from multiple samples to get deeper backtraces,
       there are caveats, see the csets for details.
     - Allow using Intel PT to synthesize callchains for regular events.
     - Add support for synthesizing branch stacks for regular events (cycles,
       instructions, etc) from Intel PT data.
 
   Misc changes:
 
     - Updated perf vendor events for power9 and Coresight.
     - Add flamegraph.py script via 'perf flamegraph'
     - Misc other changes, fixes and cleanups - see the Git log for details.
 
 Signed-off-by: Ingo Molnar <mingo@kernel.org>
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Merge tag 'perf-core-2020-06-01' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip

Pull perf updates from Ingo Molnar:
 "Kernel side changes:

   - Add AMD Fam17h RAPL support

   - Introduce CAP_PERFMON to kernel and user space

   - Add Zhaoxin CPU support

   - Misc fixes and cleanups

  Tooling changes:

   - perf record:

     Introduce '--switch-output-event' to use arbitrary events to be
     setup and read from a side band thread and, when they take place a
     signal be sent to the main 'perf record' thread, reusing the core
     for '--switch-output' to take perf.data snapshots from the ring
     buffer used for '--overwrite', e.g.:

	# perf record --overwrite -e sched:* \
		      --switch-output-event syscalls:*connect* \
		      workload

     will take perf.data.YYYYMMDDHHMMSS snapshots up to around the
     connect syscalls.

     Add '--num-synthesize-threads' option to control degree of
     parallelism of the synthesize_mmap() code which is scanning
     /proc/PID/task/PID/maps and can be time consuming. This mimics
     pre-existing behaviour in 'perf top'.

   - perf bench:

     Add a multi-threaded synthesize benchmark and kallsyms parsing
     benchmark.

   - Intel PT support:

     Stitch LBR records from multiple samples to get deeper backtraces,
     there are caveats, see the csets for details.

     Allow using Intel PT to synthesize callchains for regular events.

     Add support for synthesizing branch stacks for regular events
     (cycles, instructions, etc) from Intel PT data.

  Misc changes:

   - Updated perf vendor events for power9 and Coresight.

   - Add flamegraph.py script via 'perf flamegraph'

   - Misc other changes, fixes and cleanups - see the Git log for details

  Also, since over the last couple of years perf tooling has matured and
  decoupled from the kernel perf changes to a large degree, going
  forward Arnaldo is going to send perf tooling changes via direct pull
  requests"

* tag 'perf-core-2020-06-01' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: (163 commits)
  perf/x86/rapl: Add AMD Fam17h RAPL support
  perf/x86/rapl: Make perf_probe_msr() more robust and flexible
  perf/x86/rapl: Flip logic on default events visibility
  perf/x86/rapl: Refactor to share the RAPL code between Intel and AMD CPUs
  perf/x86/rapl: Move RAPL support to common x86 code
  perf/core: Replace zero-length array with flexible-array
  perf/x86: Replace zero-length array with flexible-array
  perf/x86/intel: Add more available bits for OFFCORE_RESPONSE of Intel Tremont
  perf/x86/rapl: Add Ice Lake RAPL support
  perf flamegraph: Use /bin/bash for report and record scripts
  perf cs-etm: Move definition of 'traceid_list' global variable from header file
  libsymbols kallsyms: Move hex2u64 out of header
  libsymbols kallsyms: Parse using io api
  perf bench: Add kallsyms parsing
  perf: cs-etm: Update to build with latest opencsd version.
  perf symbol: Fix kernel symbol address display
  perf inject: Rename perf_evsel__*() operating on 'struct evsel *' to evsel__*()
  perf annotate: Rename perf_evsel__*() operating on 'struct evsel *' to evsel__*()
  perf trace: Rename perf_evsel__*() operating on 'struct evsel *' to evsel__*()
  perf script: Rename perf_evsel__*() operating on 'struct evsel *' to evsel__*()
  ...
2020-06-01 13:23:59 -07:00
Anders Roxell 5f215aab4e lib: Kconfig.debug: default KUNIT_* fragments to KUNIT_ALL_TESTS
This makes it easier to enable all KUnit fragments.

Adding 'if !KUNIT_ALL_TESTS' so individual tests can not be turned off.
Therefore if KUNIT_ALL_TESTS is enabled that will hide the prompt in
menuconfig.

Reviewed-by: David Gow <davidgow@google.com>
Signed-off-by: Anders Roxell <anders.roxell@linaro.org>
Signed-off-by: Shuah Khan <skhan@linuxfoundation.org>
2020-06-01 14:23:50 -06:00
Anders Roxell beaed42c42 kunit: default KUNIT_* fragments to KUNIT_ALL_TESTS
This makes it easier to enable all KUnit fragments.

Adding 'if !KUNIT_ALL_TESTS' so individual tests can not be turned off.
Therefore if KUNIT_ALL_TESTS is enabled that will hide the prompt in
menuconfig.

Reviewed-by: David Gow <davidgow@google.com>
Signed-off-by: Anders Roxell <anders.roxell@linaro.org>
Signed-off-by: Shuah Khan <skhan@linuxfoundation.org>
2020-06-01 14:23:25 -06:00
Anders Roxell 92238b31bd kunit: Kconfig: enable a KUNIT_ALL_TESTS fragment
Make it easier to enable all KUnit fragments.  This is useful for kernel
devs or testers, so its easy to get all KUnit tests enabled and if new
gets added they will be enabled as well.  Fragments that has to be
builtin will be missed if CONFIG_KUNIT_ALL_TESTS is set as a module.

Signed-off-by: Anders Roxell <anders.roxell@linaro.org>
Reviewed-by: Brendan Higgins <brendanhiggins@google.com>
Signed-off-by: Shuah Khan <skhan@linuxfoundation.org>
2020-06-01 14:19:16 -06:00
Vitor Massaru Iha 01397e822a kunit: Fix TabError, remove defconfig code and handle when there is no kunitconfig
The identation before this code
(`if not os.path.exists(cli_args.build_dir):``)
was with spaces instead of tabs after fixed up merge conflits,
this commit revert spaces to tabs:

[iha@bbking linux]$ tools/testing/kunit/kunit.py run
  File "tools/testing/kunit/kunit.py", line 247
    if not linux:
                ^
TabError: inconsistent use of tabs and spaces in indentation

[iha@bbking linux]$ tools/testing/kunit/kunit.py run
Traceback (most recent call last):
  File "tools/testing/kunit/kunit.py", line 338, in <module>
    main(sys.argv[1:])
  File "tools/testing/kunit/kunit.py", line 215, in main
    add_config_opts(config_parser)

[iha@bbking linux]$ tools/testing/kunit/kunit.py run
Traceback (most recent call last):
  File "tools/testing/kunit/kunit.py", line 337, in <module>
    main(sys.argv[1:])
  File "tools/testing/kunit/kunit.py", line 255, in main
    result = run_tests(linux, request)
  File "tools/testing/kunit/kunit.py", line 133, in run_tests
    request.defconfig,
AttributeError: 'KunitRequest' object has no attribute 'defconfig'

Handles when there is no .kunitconfig, the error due to merge conflicts
between the following:

commit 9bdf64b351 ("kunit: use KUnit defconfig by default")
commit 45ba7a893a ("kunit: kunit_tool: Separate out
	config/build/exec/parse")

[iha@bbking linux]$ tools/testing/kunit/kunit.py run
Traceback (most recent call last):
  File "tools/testing/kunit/kunit.py", line 335, in <module>
    main(sys.argv[1:])
  File "tools/testing/kunit/kunit.py", line 246, in main
    linux = kunit_kernel.LinuxSourceTree()
  File "../tools/testing/kunit/kunit_kernel.py", line 109, in __init__
    self._kconfig.read_from_file(kunitconfig_path)
  File "t../ools/testing/kunit/kunit_config.py", line 88, in read_from_file
    with open(path, 'r') as f:
FileNotFoundError: [Errno 2] No such file or directory: '.kunit/.kunitconfig'

Signed-off-by: Vitor Massaru Iha <vitor@massaru.org>
Signed-off-by: Shuah Khan <skhan@linuxfoundation.org>
2020-06-01 14:14:07 -06:00
Linus Torvalds 69fc06f70f There are a lot of objtool changes in this cycle, all across the map:
- Speed up objtool significantly, especially when there are large number of sections
  - Improve objtool's understanding of special instructions such as IRET,
    to reduce the number of annotations required
  - Implement 'noinstr' validation
  - Do baby steps for non-x86 objtool use
  - Simplify/fix retpoline decoding
  - Add vmlinux validation
  - Improve documentation
  - Fix various bugs and apply smaller cleanups
 
 Signed-off-by: Ingo Molnar <mingo@kernel.org>
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Merge tag 'objtool-core-2020-06-01' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip

Pull objtool updates from Ingo Molnar:
 "There are a lot of objtool changes in this cycle, all across the map:

   - Speed up objtool significantly, especially when there are large
     number of sections

   - Improve objtool's understanding of special instructions such as
     IRET, to reduce the number of annotations required

   - Implement 'noinstr' validation

   - Do baby steps for non-x86 objtool use

   - Simplify/fix retpoline decoding

   - Add vmlinux validation

   - Improve documentation

   - Fix various bugs and apply smaller cleanups"

* tag 'objtool-core-2020-06-01' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: (54 commits)
  objtool: Enable compilation of objtool for all architectures
  objtool: Move struct objtool_file into arch-independent header
  objtool: Exit successfully when requesting help
  objtool: Add check_kcov_mode() to the uaccess safelist
  samples/ftrace: Fix asm function ELF annotations
  objtool: optimize add_dead_ends for split sections
  objtool: use gelf_getsymshndx to handle >64k sections
  objtool: Allow no-op CFI ops in alternatives
  x86/retpoline: Fix retpoline unwind
  x86: Change {JMP,CALL}_NOSPEC argument
  x86: Simplify retpoline declaration
  x86/speculation: Change FILL_RETURN_BUFFER to work with objtool
  objtool: Add support for intra-function calls
  objtool: Move the IRET hack into the arch decoder
  objtool: Remove INSN_STACK
  objtool: Make handle_insn_ops() unconditional
  objtool: Rework allocating stack_ops on decode
  objtool: UNWIND_HINT_RET_OFFSET should not check registers
  objtool: is_fentry_call() crashes if call has no destination
  x86,smap: Fix smap_{save,restore}() alternatives
  ...
2020-06-01 13:13:00 -07:00
Linus Torvalds 60056060be The biggest change to core locking facilities in this cycle is the introduction
of local_lock_t - this primitive comes from the -rt project and identifies
 CPU-local locking dependencies normally handled opaquely beind preempt_disable()
 or local_irq_save/disable() critical sections.
 
 The generated code on mainline kernels doesn't change as a result, but still there
 are benefits: improved debugging and better documentation of data structure
 accesses.
 
 The new local_lock_t primitives are introduced and then utilized in a couple of
 kernel subsystems. No change in functionality is intended.
 
 There's also other smaller changes and cleanups.
 
 Signed-off-by: Ingo Molnar <mingo@kernel.org>
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Merge tag 'locking-core-2020-06-01' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip

Pull locking updates from Ingo Molnar:
 "The biggest change to core locking facilities in this cycle is the
  introduction of local_lock_t - this primitive comes from the -rt
  project and identifies CPU-local locking dependencies normally handled
  opaquely beind preempt_disable() or local_irq_save/disable() critical
  sections.

  The generated code on mainline kernels doesn't change as a result, but
  still there are benefits: improved debugging and better documentation
  of data structure accesses.

  The new local_lock_t primitives are introduced and then utilized in a
  couple of kernel subsystems. No change in functionality is intended.

  There's also other smaller changes and cleanups"

* tag 'locking-core-2020-06-01' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
  zram: Use local lock to protect per-CPU data
  zram: Allocate struct zcomp_strm as per-CPU memory
  connector/cn_proc: Protect send_msg() with a local lock
  squashfs: Make use of local lock in multi_cpu decompressor
  mm/swap: Use local_lock for protection
  radix-tree: Use local_lock for protection
  locking: Introduce local_lock()
  locking/lockdep: Replace zero-length array with flexible-array
  locking/rtmutex: Remove unused rt_mutex_cmpxchg_relaxed()
2020-06-01 13:03:31 -07:00
Stephen Boyd 166e4b4841 Merge branches 'clk-vc5', 'clk-hsdk', 'clk-mediatek' and 'clk-baikal' into clk-next
- Support IDT VersaClock 5P49V5925
 - Bunch of updates for HSDK clock generation unit (CGU) driver
 - New clk driver for Baikal-T1 SoCs

* clk-vc5:
  dt: Add bindings for IDT VersaClock 5P49V5925
  clk: vc5: Add support for IDT VersaClock 5P49V6965

* clk-hsdk:
  CLK: HSDK: CGU: add support for 148.5MHz clock
  CLK: HSDK: CGU: support PLL bypassing
  CLK: HSDK: CGU: check if PLL is bypassed first

* clk-mediatek:
  clk: mediatek: assign the initial value to clk_init_data of mtk_mux
  clk: mediatek: Add MT6765 clock support
  clk: mediatek: add mt6765 clock IDs
  dt-bindings: clock: mediatek: document clk bindings vcodecsys for Mediatek MT6765 SoC
  dt-bindings: clock: mediatek: document clk bindings mipi0a for Mediatek MT6765 SoC
  dt-bindings: clock: mediatek: document clk bindings for Mediatek MT6765 SoC

* clk-baikal:
  clk: Add Baikal-T1 CCU Dividers driver
  clk: Add Baikal-T1 CCU PLLs driver
  dt-bindings: clk: Add Baikal-T1 CCU Dividers binding
  dt-bindings: clk: Add Baikal-T1 CCU PLLs binding
2020-06-01 13:00:56 -07:00
Stephen Boyd 5debcd01e2 Merge branches 'clk-mmp', 'clk-intel', 'clk-ingenic', 'clk-qcom' and 'clk-silabs' into clk-next
- Start making audio and GPU clks work on Marvell MMP2/MMP3 SoCs
 - Add support for X1830 and X1000 Ingenic SoC clk controllers
 - Add support for Qualcomm's MSM8939 Generic Clock Controller
 - Add some GPU, NPU, and UFS clks to Qualcomm SM8150 driver
 - Enable supply regulators for GPU gdscs on Qualcomm SoCs
 - Add support for Si5342, Si5344 and Si5345 chips

* clk-mmp:
  clk: mmp2: Add audio clock controller driver
  dt-bindings: clock: Add Marvell MMP Audio Clock Controller binding
  clk: mmp2: Add support for power islands
  dt-bindings: marvell,mmp2: Add ids for the power domains
  dt-bindings: clock: Make marvell,mmp2-clock a power controller
  clk: mmp2: Add the audio clock
  clk: mmp2: Add the I2S clocks
  clk: mmp2: Rename mmp2_pll_init() to mmp2_main_clk_init()
  clk: mmp2: Move thermal register defines up a bit
  dt-bindings: marvell,mmp2: Add clock id for the Audio clock
  dt-bindings: marvell,mmp2: Add clock id for the I2S clocks
  clk: mmp: frac: Allow setting bits other than the numerator/denominator
  clk: mmp: frac: Do not lose last 4 digits of precision

* clk-intel:
  clk: intel: remove redundant initialization of variable rate64
  clk: intel: Add CGU clock driver for a new SoC
  dt-bindings: clk: intel: Add bindings document & header file for CGU

* clk-ingenic:
  clk: ingenic: Mark ingenic_tcu_of_match as __maybe_unused
  clk: X1000: Add FIXDIV for SSI clock of X1000.
  dt-bindings: clock: Add and reorder ABI for X1000.
  clk: Ingenic: Add CGU driver for X1830.
  dt-bindings: clock: Add X1830 clock bindings.
  clk: Ingenic: Adjust cgu code to make it compatible with X1830.
  clk: Ingenic: Remove unnecessary spinlock when reading registers.

* clk-qcom:
  clk: qcom: Add missing msm8998 ufs_unipro_core_clk_src
  dt-bindings: clock: Add YAML schemas for QCOM A53 PLL
  clk: qcom: gcc-msm8939: Add MSM8939 Generic Clock Controller
  clk: qcom: gcc: Add support for Secure control source clock
  dt-bindings: clock: Add gcc_sec_ctrl_clk_src clock ID
  clk: qcom: gcc: Add support for a new frequency for SC7180
  clk: qcom: Add DT bindings for MSM8939 GCC
  clk: qcom: gcc: Add missing UFS clocks for SM8150
  clk: qcom: gcc: Add GPU and NPU clocks for SM8150
  clk: qcom: mmcc-msm8996: Properly describe GPU_GX gdsc
  clk: qcom: gdsc: Handle GDSC regulator supplies
  clk: qcom: msm8916: Fix the address location of pll->config_reg

* clk-silabs:
  clk: clk-si5341: Add support for the Si5345 series
2020-06-01 13:00:28 -07:00
Stephen Boyd b6f3162d0e Merge branches 'clk-unisoc', 'clk-trivial', 'clk-bcm', 'clk-st' and 'clk-ast2600' into clk-next
* clk-unisoc:
  clk: sprd: add mipi_csi_xx gate clocks
  clk: sprd: add dt-bindings include for mipi_csi_xx clocks
  dt-bindings: clk: sprd: add mipi_csi_xx clocks for SC9863A
  clk: sprd: check its parent status before reading gate clock
  clk: sprd: return correct type of value for _sprd_pll_recalc_rate
  clk: sprd: mark the local clock symbols static

* clk-trivial:
  clk: versatile: remove redundant assignment to pointer clk
  clk: clk-xgene: Fix a typo in Kconfig
  clk: Remove unused inline function clk_debug_reparent

* clk-bcm:
  clk: bcm2835: Constify struct debugfs_reg32
  clk: bcm2835: Remove casting to bcm2835_clk_register
  clk: bcm2835: Fix return type of bcm2835_register_gate

* clk-st:
  clk: clk-flexgen: fix clock-critical handling

* clk-ast2600:
  clk: ast2600: Fix AHB clock divider for A1
2020-06-01 13:00:21 -07:00
Stephen Boyd 8c88e568b5 Merge branches 'clk-tegra', 'clk-imx', 'clk-zynq', 'clk-socfpga', 'clk-at91' and 'clk-ti' into clk-next
- Support custom flags in Xilinx zynq firmware
 - Various small fixes to the Xilinx clk driver
 - Support for Intel Agilex clks

* clk-tegra:
  clk: tegra: Add Tegra210 CSI TPG clock gate
  clk: tegra30: Use custom CCLK implementation
  clk: tegra20: Use custom CCLK implementation
  clk: tegra: cclk: Add helpers for handling PLLX rate changes
  clk: tegra: pll: Add pre/post rate-change hooks
  clk: tegra: Add custom CCLK implementation
  clk: tegra: Remove the old emc_mux clock for Tegra210
  clk: tegra: Implement Tegra210 EMC clock
  clk: tegra: Export functions for EMC clock scaling
  clk: tegra: Add PLLP_UD and PLLMB_UD for Tegra210
  clk: tegra: Rename Tegra124 EMC clock source file
  dt-bindings: clock: tegra: Add clock ID for CSI TPG clock

* clk-imx:
  clk: imx: use imx8m_clk_hw_composite_bus for i.MX8M bus clk slice
  clk: imx: add imx8m_clk_hw_composite_bus
  clk: imx: add mux ops for i.MX8M composite clk
  clk: imx8m: migrate A53 clk root to use composite core
  clk: imx8mp: use imx8m_clk_hw_composite_core to simplify code
  clk: imx8mp: Define gates for pll1/2 fixed dividers
  clk: imx: imx8mp: fix pll mux bit
  clk: imx8m: drop clk_hw_set_parent for A53
  dt-bindings: clocks: imx8mp: Add ids for audiomix clocks
  clk: imx: Add helpers for passing the device as argument
  clk: imx: pll14xx: Add the device as argument when registering
  clk: imx: gate2: Allow single bit gating clock
  clk: imx: clk-pllv3: Use readl_relaxed_poll_timeout() for PLL lock wait
  clk: imx: clk-sscg-pll: Remove unnecessary blank lines
  clk: imx: drop the dependency on ARM64 for i.MX8M
  clk: imx7ulp: make it easy to change ARM core clk
  clk: imx: imx6ul: change flexcan clock to support CiA bitrates

* clk-zynq:
  clk: zynqmp: Make zynqmp_clk_get_max_divisor static
  clk: zynqmp: Update fraction clock check from custom type flags
  clk: zynqmp: Add support for custom type flags
  clk: zynqmp: fix memory leak in zynqmp_register_clocks
  clk: zynqmp: Fix invalid clock name queries
  clk: zynqmp: Fix divider2 calculation
  clk: zynqmp: Limit bestdiv with maxdiv

* clk-socfpga:
  clk: socfpga: agilex: add clock driver for the Agilex platform
  dt-bindings: documentation: add clock bindings information for Agilex
  clk: socfpga: add const to _ops data structures
  clk: socfpga: remove clk_ops enable/disable methods
  clk: socfpga: stratix10: use new parent data scheme

* clk-at91:
  clk: at91: allow setting all PMC clock parents via DT
  clk: at91: allow setting PCKx parent via DT
  clk: at91: optimize pmc data allocation
  clk: at91: pmc: decrement node's refcount
  clk: at91: pmc: do not continue if compatible not located
  clk: at91: Add peripheral clock for PTC

* clk-ti:
  clk: ti: dra7: remove two unused symbols
  clk: ti: dra7xx: fix RNG clock parent
  clk: ti: dra7xx: mark MCAN clock as DRA76x only
  clk: ti: dra7xx: fix gpu clkctrl parent
  clk: ti: omap5: Add proper parent clocks for l4-secure clocks
  clk: ti: omap4: Add proper parent clocks for l4-secure clocks
  clk: ti: composite: fix memory leak
2020-06-01 13:00:00 -07:00
Stephen Boyd 3a57530b7d Merge branches 'clk-selectable', 'clk-amlogic', 'clk-renesas', 'clk-samsung' and 'clk-allwinner' into clk-next
- Allow the COMMON_CLK config to be selectable

* clk-selectable:
  clk: Move HAVE_CLK config out of architecture layer
  MIPS: Loongson64: Drop asm/clock.h include
  ARM: mmp: Remove legacy clk code
  clk: Allow the common clk framework to be selectable
  mmc: meson-mx-sdio: Depend on OF_ADDRESS and not just OF
  MIPS: Remove redundant CLKDEV_LOOKUP selects
  h8300: Remove redundant CLKDEV_LOOKUP selects
  arm64: tegra: Remove redundant CLKDEV_LOOKUP selects
  ARM: Remove redundant CLKDEV_LOOKUP selects
  ARM: Remove redundant COMMON_CLK selects

* clk-amlogic:
  clk: meson: meson8b: Don't rely on u-boot to init all GP_PLL registers
  clk: meson: meson8b: Make the CCF use the glitch-free VPU mux
  clk: meson: meson8b: Fix the vclk_div{1, 2, 4, 6, 12}_en gate bits
  clk: meson: meson8b: Fix the polarity of the RESET_N lines
  clk: meson: meson8b: Fix the first parent of vid_pll_in_sel
  clk: meson: g12a: Prepare the GPU clock tree to change at runtime
  clk: meson: gxbb: Prepare the GPU clock tree to change at runtime
  clk: meson: meson8b: make the hdmi_sys clock tree mutable
  clk: meson8b: export the HDMI system clock

* clk-renesas:
  dt-bindings: clock: renesas: mstp: Convert to json-schema
  dt-bindings: clock: renesas: div6: Convert to json-schema
  clk: renesas: cpg-mssr: Fix STBCR suspend/resume handling
  clk: renesas: rcar-gen2: Remove superfluous CLK_RENESAS_DIV6 selects
  clk: renesas: cpg-mssr: Add R8A7742 support
  dt-bindings: clock: renesas: cpg-mssr: Document r8a7742 binding
  clk: renesas: Add r8a7742 CPG Core Clock Definitions
  dt-bindings: power: rcar-sysc: Add r8a7742 power domain index macros
  MAINTAINERS: Add DT Bindings for Renesas Clock Generators
  clk: renesas: r9a06g032: Fix some typo in comments
  dt-bindings: clock: renesas: rcar-usb2-clock-sel: Add r8a77961 support

* clk-samsung:
  clk: samsung: exynos5433: Add IGNORE_UNUSED flag to sclk_i2s1
  ARM/SAMSUNG EXYNOS ARM ARCHITECTURES: Use fallthrough;
  clk: samsung: Fix CLK_SMMU_FIMCL3 clock name on Exynos542x
  clk: samsung: Mark top ISP and CAM clocks on Exynos542x as critical

* clk-allwinner:
  clk: sunxi: Fix incorrect usage of round_down()
2020-06-01 12:59:46 -07:00
Linus Torvalds 2227e5b21a The RCU updates for this cycle were:
- RCU-tasks update, including addition of RCU Tasks Trace for
    BPF use and TASKS_RUDE_RCU
  - kfree_rcu() updates.
  - Remove scheduler locking restriction
  - RCU CPU stall warning updates.
  - Torture-test updates.
  - Miscellaneous fixes and other updates.
 
 Signed-off-by: Ingo Molnar <mingo@kernel.org>
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Merge tag 'core-rcu-2020-06-01' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip

Pull RCU updates from Ingo Molnar:
 "The RCU updates for this cycle were:

   - RCU-tasks update, including addition of RCU Tasks Trace for BPF use
     and TASKS_RUDE_RCU

   - kfree_rcu() updates.

   - Remove scheduler locking restriction

   - RCU CPU stall warning updates.

   - Torture-test updates.

   - Miscellaneous fixes and other updates"

* tag 'core-rcu-2020-06-01' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: (103 commits)
  rcu: Allow for smp_call_function() running callbacks from idle
  rcu: Provide rcu_irq_exit_check_preempt()
  rcu: Abstract out rcu_irq_enter_check_tick() from rcu_nmi_enter()
  rcu: Provide __rcu_is_watching()
  rcu: Provide rcu_irq_exit_preempt()
  rcu: Make RCU IRQ enter/exit functions rely on in_nmi()
  rcu/tree: Mark the idle relevant functions noinstr
  x86: Replace ist_enter() with nmi_enter()
  x86/mce: Send #MC singal from task work
  x86/entry: Get rid of ist_begin/end_non_atomic()
  sched,rcu,tracing: Avoid tracing before in_nmi() is correct
  sh/ftrace: Move arch_ftrace_nmi_{enter,exit} into nmi exception
  lockdep: Always inline lockdep_{off,on}()
  hardirq/nmi: Allow nested nmi_enter()
  arm64: Prepare arch_nmi_enter() for recursion
  printk: Disallow instrumenting print_nmi_enter()
  printk: Prepare for nested printk_nmi_enter()
  rcutorture: Convert ULONG_CMP_LT() to time_before()
  torture: Add a --kasan argument
  torture: Save a few lines by using config_override_param initially
  ...
2020-06-01 12:56:29 -07:00
Linus Torvalds 0bd957eb11 Various kprobes updates, mostly centered around cleaning up the no-instrumentation
logic, instead of the current per debug facility blacklist, use the more generic
 .noinstr.text approach, combined with a 'noinstr' marker for functions.
 
 Also add instrumentation_begin()/end() to better manage the exact place in entry
 code where instrumentation may be used.
 
 Also add a kprobes blacklist for modules.
 
 Signed-off-by: Ingo Molnar <mingo@kernel.org>
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Merge tag 'core-kprobes-2020-06-01' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip

Pull kprobes updates from Ingo Molnar:
 "Various kprobes updates, mostly centered around cleaning up the
  no-instrumentation logic.

  Instead of the current per debug facility blacklist, use the more
  generic .noinstr.text approach, combined with a 'noinstr' marker for
  functions.

  Also add instrumentation_begin()/end() to better manage the exact
  place in entry code where instrumentation may be used.

  And add a kprobes blacklist for modules"

* tag 'core-kprobes-2020-06-01' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
  kprobes: Prevent probes in .noinstr.text section
  vmlinux.lds.h: Create section for protection against instrumentation
  samples/kprobes: Add __kprobes and NOKPROBE_SYMBOL() for handlers.
  kprobes: Support NOKPROBE_SYMBOL() in modules
  kprobes: Support __kprobes blacklist in modules
  kprobes: Lock kprobe_mutex while showing kprobe_blacklist
2020-06-01 12:45:04 -07:00
Linus Torvalds 9bf9511e3d Add support for wider Memory Bandwidth Monitoring counters by querying
their width from CPUID. As a prerequsite, streamline and unify the CPUID
 detection of the respective resource control attributes. By Reinette
 Chatre.
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Merge tag 'x86_cache_updates_for_5.8' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip

Pull x86 cache resource control updates from Borislav Petkov:
 "Add support for wider Memory Bandwidth Monitoring counters by querying
  their width from CPUID.

  As a prerequsite for that, streamline and unify the CPUID detection of
  the respective resource control attributes.

  By Reinette Chatre"

* tag 'x86_cache_updates_for_5.8' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
  x86/resctrl: Support wider MBM counters
  x86/resctrl: Support CPUID enumeration of MBM counter width
  x86/resctrl: Maintain MBM counter width per resource
  x86/resctrl: Query LLC monitoring properties once during boot
  x86/resctrl: Remove unnecessary RMID checks
  x86/cpu: Move resctrl CPUID code to resctrl/
  x86/resctrl: Rename asm/resctrl_sched.h to asm/resctrl.h
2020-06-01 12:24:14 -07:00
Linus Torvalds ef34ba6d36 A single fix for late microcode loading to handle the correct return
value from stop_machine(), from Mihai Carabas.
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Merge tag 'x86_microcode_for_5.8' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip

Pull x86 microcode update from Borislav Petkov:
 "A single fix for late microcode loading to handle the correct return
  value from stop_machine(), from Mihai Carabas"

* tag 'x86_microcode_for_5.8' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
  x86/microcode: Fix return value for microcode late loading
2020-06-01 12:22:53 -07:00
Linus Torvalds 8b11dd54ad * Fix i10nm_edac loading on some Ice Lake and Tremont/Jacobsville
steppings due to the offset change of the bus number configuration
 register, by Qiuxu Zhuo.
 
 * The usual cleanups and fixes all over the place.
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Merge tag 'edac_updates_for_5.8' of git://git.kernel.org/pub/scm/linux/kernel/git/ras/ras

Pull EDAC updates from Borislav Petkov:

 - Fix i10nm_edac loading on some Ice Lake and Tremont/Jacobsville
   steppings due to the offset change of the bus number configuration
   register, by Qiuxu Zhuo.

 - The usual cleanups and fixes all over the place.

* tag 'edac_updates_for_5.8' of git://git.kernel.org/pub/scm/linux/kernel/git/ras/ras:
  EDAC/amd64: Remove redundant assignment to variable ret in hw_info_get()
  EDAC/skx: Use the mcmtr register to retrieve close_pg/bank_xor_enable
  EDAC/i10nm: Update driver to support different bus number config register offsets
  EDAC, {skx,i10nm}: Make some configurations CPU model specific
  EDAC/amd8131: Remove defined but not used bridge_str
  EDAC/thunderx: Make symbols static
  MAINTAINERS: Remove sifive_l2_cache.c from EDAC-SIFIVE pattern
  EDAC/xgene: Remove set but not used address local var
  EDAC/armada_xp: Fix some log messages
2020-06-01 12:21:34 -07:00
Vladimir Oltean eae9d3c016 net: dsa: sja1105: suppress -Wmissing-prototypes in sja1105_vl.c
Newer C compilers are complaining about the fact that there are no
function prototypes in sja1105_vl.c for the non-static functions.
Give them what they want.

Signed-off-by: Vladimir Oltean <vladimir.oltean@nxp.com>
Reviewed-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2020-06-01 12:13:47 -07:00
Linus Torvalds ca1f5df23f Printk changes for 5.8
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Merge tag 'printk-for-5.8' of git://git.kernel.org/pub/scm/linux/kernel/git/printk/linux

Pull printk updates from Petr Mladek:

 - Benjamin Herrenschmidt solved a problem with non-matched console
   aliases by first checking consoles defined on the command line. It is
   a more conservative approach than the previous attempts.

 - Benjamin also made sure that the console accessible via /dev/console
   always has CON_CONSDEV flag.

 - Andy Shevchenko added the %ptT modifier for printing struct time64_t.
   It extends the existing %ptR handling for struct rtc_time.

 - Bruno Meneguele fixed /dev/kmsg error value returned by unsupported
   SEEK_CUR.

 - Tetsuo Handa removed unused pr_cont_once().

... and a few small fixes.

* tag 'printk-for-5.8' of git://git.kernel.org/pub/scm/linux/kernel/git/printk/linux:
  printk: Remove pr_cont_once()
  printk: handle blank console arguments passed in.
  kernel/printk: add kmsg SEEK_CUR handling
  printk: Fix a typo in comment "interator"->"iterator"
  usb: pulse8-cec: Switch to use %ptT
  ARM: bcm2835: Switch to use %ptT
  lib/vsprintf: Print time64_t in human readable format
  lib/vsprintf: update comment about simple_strto<foo>() functions
  printk: Correctly set CON_CONSDEV even when preferred console was not registered
  printk: Fix preferred console selection with multiple matches
  printk: Move console matching logic into a separate function
  printk: Convert a use of sprintf to snprintf in console_unlock
2020-06-01 12:13:30 -07:00
Linus Torvalds 4d67829e11 fsverity updates for 5.8
Fix kerneldoc warnings and some coding style inconsistencies.
 This mirrors the similar cleanups being done in fs/crypto/.
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Merge tag 'fsverity-for-linus' of git://git.kernel.org/pub/scm/fs/fscrypt/fscrypt

Pull fsverity updates from Eric Biggers:
 "Fix kerneldoc warnings and some coding style inconsistencies.

  This mirrors the similar cleanups being done in fs/crypto/"

* tag 'fsverity-for-linus' of git://git.kernel.org/pub/scm/fs/fscrypt/fscrypt:
  fs-verity: remove unnecessary extern keywords
  fs-verity: fix all kerneldoc warnings
2020-06-01 12:11:56 -07:00