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Author SHA1 Message Date
Mark Brown
212e3b6b87
ARM: configs: Enable more audio support for i.MX
The generic audio card for Freescale platforms is used by a wide range
of i.MX systems and also has selects for the various audio controllers
used on them so will help with systems that don't use that specific card
too.

Signed-off-by: Mark Brown <broonie@kernel.org>
Reviewed-by: Fabio Estevam <festevam@gmail.com>
Link: https://lore.kernel.org/r/20220513121258.168364-1-broonie@kernel.org'
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
2022-05-30 11:17:03 +02:00
Arnd Bergmann
8eecf1c992 SoCFPGA dts updates for v5.19
- dtschema fix SPI NOR node
 - correct dt-bindings doc for Altera gpio driver
 - add support for n6000 Agilex platform and dt-bindings documentation
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Merge tag 'socfpga_dts_updates_for_v5.19' of git://git.kernel.org/pub/scm/linux/kernel/git/dinguyen/linux into arm/late

SoCFPGA dts updates for v5.19
- dtschema fix SPI NOR node
- correct dt-bindings doc for Altera gpio driver
- add support for n6000 Agilex platform and dt-bindings documentation

* tag 'socfpga_dts_updates_for_v5.19' of git://git.kernel.org/pub/scm/linux/kernel/git/dinguyen/linux:
  arm64: dts: intel: add device tree for n6000
  dt-bindings: intel: add binding for Intel n6000
  dt-bindings: soc: add bindings for Intel HPS Copy Engine
  dt-bindings: gpio: altera: correct interrupt-cells
  ARM: dts: socfpga: align SPI NOR node name with dtschema

Link: https://lore.kernel.org/r/20220519232317.16079-1-dinguyen@kernel.org
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
2022-05-30 11:00:02 +02:00
Arnd Bergmann
725523dd36 ASPEED device tree updates for 5.19
- New machine:
 
     * Nuvia's DC-SCM BMC
 
  - Enable AST2600 GFX, the BMC-driven graphics device
 
  - Add a bunch of devices for the AST2600 EVB
 
  - Updates to the AST2600 Bletchley machine
 
  - Backwards compatible changes to support the new spi-mem based SPI NOR
    driver
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Merge tag 'aspeed-5.19-devicetree' of git://git.kernel.org/pub/scm/linux/kernel/git/joel/bmc into arm/late

ASPEED device tree updates for 5.19

 - New machine:

    * Nuvia's DC-SCM BMC

 - Enable AST2600 GFX, the BMC-driven graphics device

 - Add a bunch of devices for the AST2600 EVB

 - Updates to the AST2600 Bletchley machine

 - Backwards compatible changes to support the new spi-mem based SPI NOR
   driver

* tag 'aspeed-5.19-devicetree' of git://git.kernel.org/pub/scm/linux/kernel/git/joel/bmc:
  ARM: dts: aspeed: ast2600-evb: Enable GFX device
  ARM: dts: aspeed: Add GFX node to AST2600
  ARM: dts: aspeed: ast2600-evb: Enable virtual hub
  ARM: dts: aspeed: ast2600-evb: Enable video engine
  ARM: dts: aspeed: everest, rainier: Add power-ffs-sync-history GPIO
  ARM: dts: aspeed: Add Nuvia DC-SCM BMC
  ARM: dts: aspeed: bletchley: add sample averaging for ADM1278
  ARM: dts: aspeed: bletchley: add eeprom node on each sled
  ARM: dts: aspeed: bletchley: add pca9536 node on each sled
  ARM: dts: aspeed: bletchley: update gpio0 line names
  ARM: dts: aspeed: bletchley: Enable mdio0 bus
  ARM: dts: aspeed: bletchley: switch spi2 driver to aspeed-smc
  ARM: dts: aspeed: bletchley: enable ehci0 device node
  ARM: dts: aspeed: Add USB2.0 device controller node
  ARM: dts: aspeed-g4: Set spi-max-frequency for all flashes
  ARM: dts: aspeed: Enable Dual SPI RX transfers
  ARM: dts: aspeed: Adjust "reg" property of FMC/SPI controllers
  ARM: dts: aspeed: ast2600-evb: Enable RX delay for MAC0/MAC1

Link: https://lore.kernel.org/r/CACPK8XfUmFxU8Y6C+aZ2+=dT7=fCfs2=2_aYqyRjoXCoeQaUWQ@mail.gmail.com
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
2022-05-30 10:59:42 +02:00
Linus Torvalds
76bfd3de34 tracing updates for 5.19:
- The majority of the changes are for fixes and clean ups.
 
 Noticeable changes:
 
 - Rework trace event triggers code to be easier to interact with.
 
 - Support for embedding bootconfig with the kernel (as suppose to having it
   embedded in initram). This is useful for embedded boards without initram
   disks.
 
 - Speed up boot by parallelizing the creation of tracefs files.
 
 - Allow absolute ring buffer timestamps handle timestamps that use more than
   59 bits.
 
 - Added new tracing clock "TAI" (International Atomic Time)
 
 - Have weak functions show up in available_filter_function list as:
    __ftrace_invalid_address___<invalid-offset>
   instead of using the name of the function before it.
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Merge tag 'trace-v5.19' of git://git.kernel.org/pub/scm/linux/kernel/git/rostedt/linux-trace

Pull tracing updates from Steven Rostedt:
 "The majority of the changes are for fixes and clean ups.

  Notable changes:

   - Rework trace event triggers code to be easier to interact with.

   - Support for embedding bootconfig with the kernel (as suppose to
     having it embedded in initram). This is useful for embedded boards
     without initram disks.

   - Speed up boot by parallelizing the creation of tracefs files.

   - Allow absolute ring buffer timestamps handle timestamps that use
     more than 59 bits.

   - Added new tracing clock "TAI" (International Atomic Time)

   - Have weak functions show up in available_filter_function list as:
     __ftrace_invalid_address___<invalid-offset> instead of using the
     name of the function before it"

* tag 'trace-v5.19' of git://git.kernel.org/pub/scm/linux/kernel/git/rostedt/linux-trace: (52 commits)
  ftrace: Add FTRACE_MCOUNT_MAX_OFFSET to avoid adding weak function
  tracing: Fix comments for event_trigger_separate_filter()
  x86/traceponit: Fix comment about irq vector tracepoints
  x86,tracing: Remove unused headers
  ftrace: Clean up hash direct_functions on register failures
  tracing: Fix comments of create_filter()
  tracing: Disable kcov on trace_preemptirq.c
  tracing: Initialize integer variable to prevent garbage return value
  ftrace: Fix typo in comment
  ftrace: Remove return value of ftrace_arch_modify_*()
  tracing: Cleanup code by removing init "char *name"
  tracing: Change "char *" string form to "char []"
  tracing/timerlat: Do not wakeup the thread if the trace stops at the IRQ
  tracing/timerlat: Print stacktrace in the IRQ handler if needed
  tracing/timerlat: Notify IRQ new max latency only if stop tracing is set
  kprobes: Fix build errors with CONFIG_KRETPROBES=n
  tracing: Fix return value of trace_pid_write()
  tracing: Fix potential double free in create_var_ref()
  tracing: Use strim() to remove whitespace instead of doing it manually
  ftrace: Deal with error return code of the ftrace_process_locs() function
  ...
2022-05-29 10:31:36 -07:00
Masahiro Yamada
534671e0ef parisc: remove arch/parisc/nm
Parisc overrides 'nm' with a shell script. I was hit by a false-positive
error of $(NM) because this script returns the exit status of grep
instead of ${CROSS_COMPILE}nm. (grep returns 1 if no lines were selected)

I tried to fix it, but in the code review, Helge suggested to remove it
entirely. [1]

This script was added in 2003. [2]

Presumably, it was a workaround for old toolchains (but even the parisc
maintainer does not know the detail any more).

Hopefully, recent tools should work fine.

[1]: https://lore.kernel.org/all/1c12cd26-d8aa-4498-f4c0-29478b9578fe@gmx.de/
[2]: https://git.kernel.org/pub/scm/linux/kernel/git/history/history.git/commit/?id=36eaa6e4c0e0b6950136b956b72fd08155b92ca3

Suggested-by: Helge Deller <deller@gmx.de>
Signed-off-by: Masahiro Yamada <masahiroy@kernel.org>
Acked-by: Helge Deller <deller@gmx.de>
2022-05-29 18:39:35 +09:00
Michael Ellerman
1346d00e1b powerpc: Don't select HAVE_IRQ_EXIT_ON_IRQ_STACK
The HAVE_IRQ_EXIT_ON_IRQ_STACK option tells generic code that irq_exit()
is called while still running on the hard irq stack (hardirq_ctx[] in
the powerpc code).

Selecting the option means the generic code will *not* switch to the
softirq stack before running softirqs, because the code is already
running on the (mostly empty) hard irq stack.

But since commit 1b1b6a6f4c ("powerpc: handle irq_enter/irq_exit in
interrupt handler wrappers"), irq_exit() is now called on the regular task
stack, not the hard irq stack.

That's because previously irq_exit() was called in __do_irq() which is
run on the hard irq stack, but now it is called in
interrupt_async_exit_prepare() which is called from do_irq() constructed
by the wrapper macro, which is after the switch back to the task stack.

So drop HAVE_IRQ_EXIT_ON_IRQ_STACK from the Kconfig. This will mean an
extra stack switch when processing some interrupts, but should
significantly reduce the likelihood of stack overflow.

It also means the softirq stack will be used for running softirqs from
other interrupts that don't use the hard irq stack, eg. timer interrupts.

Fixes: 1b1b6a6f4c ("powerpc: handle irq_enter/irq_exit in interrupt handler wrappers")
Cc: stable@vger.kernel.org # v5.12+
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Link: https://lore.kernel.org/r/20220525032639.1947280-1-mpe@ellerman.id.au
2022-05-29 10:30:42 +10:00
He Ying
a1b29ba2f2 powerpc/kasan: Silence KASAN warnings in __get_wchan()
The following KASAN warning was reported in our kernel.

  BUG: KASAN: stack-out-of-bounds in get_wchan+0x188/0x250
  Read of size 4 at addr d216f958 by task ps/14437

  CPU: 3 PID: 14437 Comm: ps Tainted: G           O      5.10.0 #1
  Call Trace:
  [daa63858] [c0654348] dump_stack+0x9c/0xe4 (unreliable)
  [daa63888] [c035cf0c] print_address_description.constprop.3+0x8c/0x570
  [daa63908] [c035d6bc] kasan_report+0x1ac/0x218
  [daa63948] [c00496e8] get_wchan+0x188/0x250
  [daa63978] [c0461ec8] do_task_stat+0xce8/0xe60
  [daa63b98] [c0455ac8] proc_single_show+0x98/0x170
  [daa63bc8] [c03cab8c] seq_read_iter+0x1ec/0x900
  [daa63c38] [c03cb47c] seq_read+0x1dc/0x290
  [daa63d68] [c037fc94] vfs_read+0x164/0x510
  [daa63ea8] [c03808e4] ksys_read+0x144/0x1d0
  [daa63f38] [c005b1dc] ret_from_syscall+0x0/0x38
  --- interrupt: c00 at 0x8fa8f4
      LR = 0x8fa8cc

  The buggy address belongs to the page:
  page:98ebcdd2 refcount:0 mapcount:0 mapping:00000000 index:0x2 pfn:0x1216f
  flags: 0x0()
  raw: 00000000 00000000 01010122 00000000 00000002 00000000 ffffffff 00000000
  raw: 00000000
  page dumped because: kasan: bad access detected

  Memory state around the buggy address:
   d216f800: 00 00 00 00 00 f1 f1 f1 f1 00 00 00 00 00 00 00
   d216f880: f2 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
  >d216f900: 00 00 00 00 00 00 00 00 00 00 00 f1 f1 f1 f1 00
                                            ^
   d216f980: f2 f2 f2 f2 f2 f2 f2 00 00 00 00 00 00 00 00 00
   d216fa00: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00

After looking into this issue, I find the buggy address belongs
to the task stack region. It seems KASAN has something wrong.
I look into the code of __get_wchan in x86 architecture and
find the same issue has been resolved by the commit
f7d27c35dd ("x86/mm, kasan: Silence KASAN warnings in get_wchan()").
The solution could be applied to powerpc architecture too.

As Andrey Ryabinin said, get_wchan() is racy by design, it may
access volatile stack of running task, thus it may access
redzone in a stack frame and cause KASAN to warn about this.

Use READ_ONCE_NOCHECK() to silence these warnings.

Reported-by: Wanming Hu <huwanming@huaweil.com>
Signed-off-by: He Ying <heying24@huawei.com>
Signed-off-by: Chen Jingwen <chenjingwen6@huawei.com>
Reviewed-by: Kees Cook <keescook@chromium.org>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Link: https://lore.kernel.org/r/20220121014418.155675-1-heying24@huawei.com
2022-05-29 10:30:42 +10:00
Paul Mackerras
743cdb7bd0 powerpc/kasan: Mark more real-mode code as not to be instrumented
This marks more files and functions that can possibly be called in
real mode as not to be instrumented by KASAN.  Most were found by
inspection, except for get_pseries_errorlog() which was reported as
causing a crash in testing.

Reported-by: Nageswara R Sastry <rnsastry@linux.ibm.com>
Signed-off-by: Paul Mackerras <paulus@ozlabs.org>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Link: https://lore.kernel.org/r/YoX1kZPnmUX4RZEK@cleo
2022-05-29 10:30:42 +10:00
Linus Torvalds
f56dbdda43 hyperv-next for 5.19
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Merge tag 'hyperv-next-signed-20220528' of git://git.kernel.org/pub/scm/linux/kernel/git/hyperv/linux

Pull hyperv updates from Wei Liu:

 - Harden hv_sock driver (Andrea Parri)

 - Harden Hyper-V PCI driver (Andrea Parri)

 - Fix multi-MSI for Hyper-V PCI driver (Jeffrey Hugo)

 - Fix Hyper-V PCI to reduce boot time (Dexuan Cui)

 - Remove code for long EOL'ed Hyper-V versions (Michael Kelley, Saurabh
   Sengar)

 - Fix balloon driver error handling (Shradha Gupta)

 - Fix a typo in vmbus driver (Julia Lawall)

 - Ignore vmbus IMC device (Michael Kelley)

 - Add a new error message to Hyper-V DRM driver (Saurabh Sengar)

* tag 'hyperv-next-signed-20220528' of git://git.kernel.org/pub/scm/linux/kernel/git/hyperv/linux: (28 commits)
  hv_balloon: Fix balloon_probe() and balloon_remove() error handling
  scsi: storvsc: Removing Pre Win8 related logic
  Drivers: hv: vmbus: fix typo in comment
  PCI: hv: Fix synchronization between channel callback and hv_pci_bus_exit()
  PCI: hv: Add validation for untrusted Hyper-V values
  PCI: hv: Fix interrupt mapping for multi-MSI
  PCI: hv: Reuse existing IRTE allocation in compose_msi_msg()
  drm/hyperv: Remove support for Hyper-V 2008 and 2008R2/Win7
  video: hyperv_fb: Remove support for Hyper-V 2008 and 2008R2/Win7
  scsi: storvsc: Remove support for Hyper-V 2008 and 2008R2/Win7
  Drivers: hv: vmbus: Remove support for Hyper-V 2008 and Hyper-V 2008R2/Win7
  x86/hyperv: Disable hardlockup detector by default in Hyper-V guests
  drm/hyperv: Add error message for fb size greater than allocated
  PCI: hv: Do not set PCI_COMMAND_MEMORY to reduce VM boot time
  PCI: hv: Fix hv_arch_irq_unmask() for multi-MSI
  Drivers: hv: vmbus: Refactor the ring-buffer iterator functions
  Drivers: hv: vmbus: Accept hv_sock offers in isolated guests
  hv_sock: Add validation for untrusted Hyper-V values
  hv_sock: Copy packets sent by Hyper-V out of the ring buffer
  hv_sock: Check hv_pkt_iter_first_raw()'s return value
  ...
2022-05-28 11:39:01 -07:00
Linus Torvalds
6112bd00e8 powerpc updates for 5.19
- Convert to the generic mmap support (ARCH_WANT_DEFAULT_TOPDOWN_MMAP_LAYOUT).
 
  - Add support for outline-only KASAN with 64-bit Radix MMU (P9 or later).
 
  - Increase SIGSTKSZ and MINSIGSTKSZ and add support for AT_MINSIGSTKSZ.
 
  - Enable the DAWR (Data Address Watchpoint) on POWER9 DD2.3 or later.
 
  - Drop support for system call instruction emulation.
 
  - Many other small features and fixes.
 
 Thanks to: Alexey Kardashevskiy, Alistair Popple, Andy Shevchenko, Bagas Sanjaya, Bjorn
 Helgaas, Bo Liu, Chen Huang, Christophe Leroy, Colin Ian King, Daniel Axtens, Dwaipayan
 Ray, Fabiano Rosas, Finn Thain, Frank Rowand, Fuqian Huang, Guilherme G. Piccoli, Hangyu
 Hua, Haowen Bai, Haren Myneni, Hari Bathini, He Ying, Jason Wang, Jiapeng Chong, Jing
 Yangyang, Joel Stanley, Julia Lawall, Kajol Jain, Kevin Hao, Krzysztof Kozlowski, Laurent
 Dufour, Lv Ruyi, Madhavan Srinivasan, Magali Lemes, Miaoqian Lin, Minghao Chi, Nathan
 Chancellor, Naveen N. Rao, Nicholas Piggin, Oliver O'Halloran, Oscar Salvador, Pali Rohár,
 Paul Mackerras, Peng Wu, Qing Wang, Randy Dunlap, Reza Arbab, Russell Currey, Sohaib
 Mohamed, Vaibhav Jain, Vasant Hegde, Wang Qing, Wang Wensheng, Xiang wangx, Xiaomeng Tong,
 Xu Wang, Yang Guang, Yang Li, Ye Bin, YueHaibing, Yu Kuai, Zheng Bin, Zou Wei, Zucheng
 Zheng.
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Merge tag 'powerpc-5.19-1' of git://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linux

Pull powerpc updates from Michael Ellerman:

 - Convert to the generic mmap support (ARCH_WANT_DEFAULT_TOPDOWN_MMAP_LAYOUT)

 - Add support for outline-only KASAN with 64-bit Radix MMU (P9 or later)

 - Increase SIGSTKSZ and MINSIGSTKSZ and add support for AT_MINSIGSTKSZ

 - Enable the DAWR (Data Address Watchpoint) on POWER9 DD2.3 or later

 - Drop support for system call instruction emulation

 - Many other small features and fixes

Thanks to Alexey Kardashevskiy, Alistair Popple, Andy Shevchenko, Bagas
Sanjaya, Bjorn Helgaas, Bo Liu, Chen Huang, Christophe Leroy, Colin Ian
King, Daniel Axtens, Dwaipayan Ray, Fabiano Rosas, Finn Thain, Frank
Rowand, Fuqian Huang, Guilherme G. Piccoli, Hangyu Hua, Haowen Bai,
Haren Myneni, Hari Bathini, He Ying, Jason Wang, Jiapeng Chong, Jing
Yangyang, Joel Stanley, Julia Lawall, Kajol Jain, Kevin Hao, Krzysztof
Kozlowski, Laurent Dufour, Lv Ruyi, Madhavan Srinivasan, Magali Lemes,
Miaoqian Lin, Minghao Chi, Nathan Chancellor, Naveen N. Rao, Nicholas
Piggin, Oliver O'Halloran, Oscar Salvador, Pali Rohár, Paul Mackerras,
Peng Wu, Qing Wang, Randy Dunlap, Reza Arbab, Russell Currey, Sohaib
Mohamed, Vaibhav Jain, Vasant Hegde, Wang Qing, Wang Wensheng, Xiang
wangx, Xiaomeng Tong, Xu Wang, Yang Guang, Yang Li, Ye Bin, YueHaibing,
Yu Kuai, Zheng Bin, Zou Wei, and Zucheng Zheng.

* tag 'powerpc-5.19-1' of git://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linux: (200 commits)
  powerpc/64: Include cache.h directly in paca.h
  powerpc/64s: Only set HAVE_ARCH_UNMAPPED_AREA when CONFIG_PPC_64S_HASH_MMU is set
  powerpc/xics: Include missing header
  powerpc/powernv/pci: Drop VF MPS fixup
  powerpc/fsl_book3e: Don't set rodata RO too early
  powerpc/microwatt: Add mmu bits to device tree
  powerpc/powernv/flash: Check OPAL flash calls exist before using
  powerpc/powermac: constify device_node in of_irq_parse_oldworld()
  powerpc/powermac: add missing g5_phy_disable_cpu1() declaration
  selftests/powerpc/pmu: fix spelling mistake "mis-match" -> "mismatch"
  powerpc: Enable the DAWR on POWER9 DD2.3 and above
  powerpc/64s: Add CPU_FTRS_POWER10 to ALWAYS mask
  powerpc/64s: Add CPU_FTRS_POWER9_DD2_2 to CPU_FTRS_ALWAYS mask
  powerpc: Fix all occurences of "the the"
  selftests/powerpc/pmu/ebb: remove fixed_instruction.S
  powerpc/platforms/83xx: Use of_device_get_match_data()
  powerpc/eeh: Drop redundant spinlock initialization
  powerpc/iommu: Add missing of_node_put in iommu_init_early_dart
  powerpc/pseries/vas: Call misc_deregister if sysfs init fails
  powerpc/papr_scm: Fix leaking nvdimm_events_map elements
  ...
2022-05-28 11:27:17 -07:00
Linus Torvalds
907bb57aa7 Pin control bulk changes for the v5.19 series:
Core changes:
 
 - New helpers from Andy such as for_each_gpiochip_node() affecting both
   GPIO and pin control, improving a bunch of drivers in the process.
 
 - Pulled in Marc Zyngiers work to make IRQ chips immutable, and started
   to apply fixups on top.
 
 New drivers:
 
 - New driver for Marvell MVEBU 98DX2530.
 
 - New driver for Mediatek MT8195.
 
 - Support Qualcomm PMX65 and PM6125.
 
 - New driver for Qualcomm SC7280 LPASS pin control.
 
 - New driver for Rockchip RK3588.
 
 - New driver for NXP Freescale i.MXRT1170.
 
 - New driver for Mediatek MT6795 Helio X10.
 
 Improvements:
 
 - Several Aspeed G6 cleanups and non-critical fixes.
 
 - Thorought refactoring of some of the ever improving Renesas drivers.
 
 - Clean up Mediatek MT8192 bindings a bit.
 
 - PWM output and clock monitoring in the Ocelot LAN966x driver.
 
 - Thorough refactoring and cleanup of the Ralink drivers such as
   RT2880, RT3883, RT305X, MT7620, MT7621, MT7628 splitting these into proper
   sub-drivers.
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Merge tag 'pinctrl-v5.19-1' of git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-pinctrl

Pull pin control updates from Linus Walleij:
 "Pretty big this time. Mostly due to (nice) Renesas refactorings.

  Core changes:

   - New helpers from Andy such as for_each_gpiochip_node() affecting
     both GPIO and pin control, improving a bunch of drivers in the
     process.

   - Pulled in Marc Zyngiers work to make IRQ chips immutable, and
     started to apply fixups on top.

  New drivers:

   - New driver for Marvell MVEBU 98DX2530.

   - New driver for Mediatek MT8195.

   - Support Qualcomm PMX65 and PM6125.

   - New driver for Qualcomm SC7280 LPASS pin control.

   - New driver for Rockchip RK3588.

   - New driver for NXP Freescale i.MXRT1170.

   - New driver for Mediatek MT6795 Helio X10.

  Improvements:

   - Several Aspeed G6 cleanups and non-critical fixes.

   - Thorought refactoring of some of the ever improving Renesas
     drivers.

   - Clean up Mediatek MT8192 bindings a bit.

   - PWM output and clock monitoring in the Ocelot LAN966x driver.

   - Thorough refactoring and cleanup of the Ralink drivers such as
     RT2880, RT3883, RT305X, MT7620, MT7621, MT7628 splitting these into
     proper sub-drivers"

* tag 'pinctrl-v5.19-1' of git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-pinctrl: (161 commits)
  pinctrl: apple: Use a raw spinlock for the regmap
  pinctrl: berlin: bg4ct: Use devm_platform_*ioremap_resource() APIs
  pinctrl: intel: Fix kernel doc format, i.e. add return sections
  dt-bindings: pinctrl: qcom: Drop 'maxItems' on 'wakeup-parent'
  pinctrl: starfive: Make the irqchip immutable
  pinctrl: mediatek: Add pinctrl driver for MT6795 Helio X10
  dt-bindings: pinctrl: Add MediaTek MT6795 pinctrl bindings
  pinctrl: freescale: Add i.MXRT1170 pinctrl driver support
  dt-bindings: pinctrl: add i.MXRT1170 pinctrl Documentation
  dt-bindings: pinctrl: rockchip: increase max amount of device functions
  dt-bindings: pinctrl: qcom,pmic-gpio: add 'gpio-reserved-ranges'
  dt-bindings: pinctrl: qcom,pmic-gpio: add 'input-disable'
  dt-bindings: pinctrl: qcom,pmic-gpio: describe gpio-line-names
  dt-bindings: pinctrl: qcom,pmic-gpio: fix matching pin config
  dt-bindings: pinctrl: qcom,pmic-gpio: document PM8150L and PMM8155AU
  pinctrl: qcom: spmi-gpio: Add pm6125 compatible
  dt-bindings: pinctrl: qcom-pmic-gpio: Add pm6125 compatible
  pinctrl: intel: Drop unused irqchip member in struct intel_pinctrl
  pinctrl: intel: make irq_chip immutable
  pinctrl: cherryview: Use GPIO chip pointer in chv_gpio_irq_mask_unmask()
  ...
2022-05-28 11:15:54 -07:00
Steven Rostedt (Google)
b39181f7c6 ftrace: Add FTRACE_MCOUNT_MAX_OFFSET to avoid adding weak function
If an unused weak function was traced, it's call to fentry will still
exist, which gets added into the __mcount_loc table. Ftrace will use
kallsyms to retrieve the name for each location in __mcount_loc to display
it in the available_filter_functions and used to enable functions via the
name matching in set_ftrace_filter/notrace. Enabling these functions do
nothing but enable an unused call to ftrace_caller. If a traced weak
function is overridden, the symbol of the function would be used for it,
which will either created duplicate names, or if the previous function was
not traced, it would be incorrectly be listed in available_filter_functions
as a function that can be traced.

This became an issue with BPF[1] as there are tooling that enables the
direct callers via ftrace but then checks to see if the functions were
actually enabled. The case of one function that was marked notrace, but
was followed by an unused weak function that was traced. The unused
function's call to fentry was added to the __mcount_loc section, and
kallsyms retrieved the untraced function's symbol as the weak function was
overridden. Since the untraced function would not get traced, the BPF
check would detect this and fail.

The real fix would be to fix kallsyms to not show addresses of weak
functions as the function before it. But that would require adding code in
the build to add function size to kallsyms so that it can know when the
function ends instead of just using the start of the next known symbol.

In the mean time, this is a work around. Add a FTRACE_MCOUNT_MAX_OFFSET
macro that if defined, ftrace will ignore any function that has its call
to fentry/mcount that has an offset from the symbol that is greater than
FTRACE_MCOUNT_MAX_OFFSET.

If CONFIG_HAVE_FENTRY is defined for x86, define FTRACE_MCOUNT_MAX_OFFSET
to zero (unless IBT is enabled), which will have ftrace ignore all locations
that are not at the start of the function (or one after the ENDBR
instruction).

A worker thread is added at boot up to scan all the ftrace record entries,
and will mark any that fail the FTRACE_MCOUNT_MAX_OFFSET test as disabled.
They will still appear in the available_filter_functions file as:

  __ftrace_invalid_address___<invalid-offset>

(showing the offset that caused it to be invalid).

This is required for tools that use libtracefs (like trace-cmd does) that
scan the available_filter_functions and enable set_ftrace_filter and
set_ftrace_notrace using indexes of the function listed in the file (this
is a speedup, as enabling thousands of files via names is an O(n^2)
operation and can take minutes to complete, where the indexing takes less
than a second).

The invalid functions cannot be removed from available_filter_functions as
the names there correspond to the ftrace records in the array that manages
them (and the indexing depends on this).

[1] https://lore.kernel.org/all/20220412094923.0abe90955e5db486b7bca279@kernel.org/

Link: https://lkml.kernel.org/r/20220526141912.794c2786@gandalf.local.home

Signed-off-by: Steven Rostedt (Google) <rostedt@goodmis.org>
2022-05-28 09:31:19 -04:00
Heinrich Schuchardt
630f972d76 riscv: read-only pages should not be writable
If EFI pages are marked as read-only,
we should remove the _PAGE_WRITE flag.

The current code overwrites an unused value.

Fixes: b91540d52a ("RISC-V: Add EFI runtime services")
Signed-off-by: Heinrich Schuchardt <heinrich.schuchardt@canonical.com>
Link: https://lore.kernel.org/r/20220528014132.91052-1-heinrich.schuchardt@canonical.com
Signed-off-by: Ard Biesheuvel <ardb@kernel.org>
2022-05-28 11:39:31 +02:00
Linus Torvalds
d075c0c1be This update includes the following changes:
API:
 
 - Test in-place en/decryption with two sglists in testmgr.
 - Fix process vs. softirq race in cryptd.
 
 Algorithms:
 
 - Add arm64 acceleration for sm4.
 - Add s390 acceleration for chacha20.
 
 Drivers:
 
 - Add polarfire soc hwrng support in mpsf.
 - Add support for TI SoC AM62x in sa2ul.
 - Add support for ATSHA204 cryptochip in atmel-sha204a.
 - Add support for PRNG in caam.
 - Restore support for storage encryption in qat.
 - Restore support for storage encryption in hisilicon/sec.
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Merge tag 'v5.19-p1' of git://git.kernel.org/pub/scm/linux/kernel/git/herbert/crypto-2.6

Pull crypto updates from Herbert Xu:
 "API:

   - Test in-place en/decryption with two sglists in testmgr

   - Fix process vs softirq race in cryptd

  Algorithms:

   - Add arm64 acceleration for sm4

   - Add s390 acceleration for chacha20

  Drivers:

   - Add polarfire soc hwrng support in mpsf

   - Add support for TI SoC AM62x in sa2ul

   - Add support for ATSHA204 cryptochip in atmel-sha204a

   - Add support for PRNG in caam

   - Restore support for storage encryption in qat

   - Restore support for storage encryption in hisilicon/sec"

* tag 'v5.19-p1' of git://git.kernel.org/pub/scm/linux/kernel/git/herbert/crypto-2.6: (116 commits)
  hwrng: omap3-rom - fix using wrong clk_disable() in omap_rom_rng_runtime_resume()
  crypto: hisilicon/sec - delete the flag CRYPTO_ALG_ALLOCATES_MEMORY
  crypto: qat - add support for 401xx devices
  crypto: qat - re-enable registration of algorithms
  crypto: qat - honor CRYPTO_TFM_REQ_MAY_SLEEP flag
  crypto: qat - add param check for DH
  crypto: qat - add param check for RSA
  crypto: qat - remove dma_free_coherent() for DH
  crypto: qat - remove dma_free_coherent() for RSA
  crypto: qat - fix memory leak in RSA
  crypto: qat - add backlog mechanism
  crypto: qat - refactor submission logic
  crypto: qat - use pre-allocated buffers in datapath
  crypto: qat - set to zero DH parameters before free
  crypto: s390 - add crypto library interface for ChaCha20
  crypto: talitos - Uniform coding style with defined variable
  crypto: octeontx2 - simplify the return expression of otx2_cpt_aead_cbc_aes_sha_setkey()
  crypto: cryptd - Protect per-CPU resource by disabling BH.
  crypto: sun8i-ce - do not fallback if cryptlen is less than sg length
  crypto: sun8i-ce - rework debugging
  ...
2022-05-27 18:06:49 -07:00
Linus Torvalds
35cdd8656e libnvdimm for 5.19
- Add support for clearing memory error via pwrite(2) on DAX
 
 - Fix 'security overwrite' support in the presence of media errors
 
 - Miscellaneous cleanups and fixes for nfit_test (nvdimm unit tests)
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Merge tag 'libnvdimm-for-5.19' of git://git.kernel.org/pub/scm/linux/kernel/git/nvdimm/nvdimm

Pull libnvdimm and DAX updates from Dan Williams:
 "New support for clearing memory errors when a file is in DAX mode,
  alongside with some other fixes and cleanups.

  Previously it was only possible to clear these errors using a truncate
  or hole-punch operation to trigger the filesystem to reallocate the
  block, now, any page aligned write can opportunistically clear errors
  as well.

  This change spans x86/mm, nvdimm, and fs/dax, and has received the
  appropriate sign-offs. Thanks to Jane for her work on this.

  Summary:

   - Add support for clearing memory error via pwrite(2) on DAX

   - Fix 'security overwrite' support in the presence of media errors

   - Miscellaneous cleanups and fixes for nfit_test (nvdimm unit tests)"

* tag 'libnvdimm-for-5.19' of git://git.kernel.org/pub/scm/linux/kernel/git/nvdimm/nvdimm:
  pmem: implement pmem_recovery_write()
  pmem: refactor pmem_clear_poison()
  dax: add .recovery_write dax_operation
  dax: introduce DAX_RECOVERY_WRITE dax access mode
  mce: fix set_mce_nospec to always unmap the whole page
  x86/mce: relocate set{clear}_mce_nospec() functions
  acpi/nfit: rely on mce->misc to determine poison granularity
  testing: nvdimm: asm/mce.h is not needed in nfit.c
  testing: nvdimm: iomap: make __nfit_test_ioremap a macro
  nvdimm: Allow overwrite in the presence of disabled dimms
  tools/testing/nvdimm: remove unneeded flush_workqueue
2022-05-27 15:49:30 -07:00
Linus Torvalds
6b0e34a030 Mainly driver updates this time around. There's a single patch to the core clk
framework that simplifies a runtime PM call. Otherwise the majority of the diff
 falls to a few SoC drivers: Qualcomm, STM32 and MediaTek. Those SoCs gain some
 new hardware support and what comes along with that is quite a few lines of
 data and some clk_ops code. Beyond the new hardware support we have the usual
 pile of driver updates that add missing clks on already supported SoCs or fix
 up problems like bad clk tree descriptions. It's nice to see that more drivers
 are moving to clk_hw based APIs too.
 
 New Drivers:
  - Add STM32MP13 RCC driver (Reset Clock Controller)
  - MediaTek MT8186 SoC clk support
  - Airoha EN7523 SoC system clocks
  - Clock driver for exynosautov9 SoC
  - Renesas R-Car V4H and RZ/V2M SoCs
  - Renesas RZ/G2UL SoC
  - LPASS clk driver for Qualcomm sc7280 SoC
  - GCC clk driver for Qualcomm SC8280XP SoC
 
 Updates:
  - SDCC uses floor clk ops on Qualcomm MSM8976
  - Add modem reset and fix RPM clks on Qualcomm MSM8976
  - Add the two missing CLKOUT clocks for U8500/DB8500 SoC
  - Mark some clks critical on Ingenic X1000
  - Convert ux500 to clk_hw
  - Move MediaTek driver to clk_hw provider APIs
  - Use i2c driver probe_new to avoid id scans
  - Convert a number of Rockchip dt bindings to YAML
  - Mark hclk_vo critical on Rockchip rk3568
  - Use pm_runtime_resume_and_get to fix pm_runtime_get_sync() usage
  - Various cleanups like memory allocation error checks and plugged leaks
  - Allwinner H6 RTC clock support
  - Allwinner H616 32 kHz clock support
  - Add the Universal Flash Storage clock on Renesas R-Car S4-8
  - Add I2C, SSIF-2 (sound), USB, CANFD, OSTM (timer), WDT, SPI Multi
    I/O Bus, RSPI, TSU (thermal), and ADC clocks and resets on Renesas RZ/G2UL
  - Add display clock support on Renesas RZ/G2L
  - Add RPC (QSPI/HyperFlash) clocks on Renesas R-Car E3 and D3
  - Add 27 MHz phy PLL ref clock on i.MX
  - Add mcore_booted module parameter to tell kernel M core has already booted
    for i.MX
  - Remove snvs clock on i.MX because it was for secure world only
  - Add dt bindings for i.MX8MN GPT
  - Add DISP2 pixel clock for i.MX8MP
  - Add clkout1/2 for i.MX8MP
  - Fix parent clock of ubs_root_clk for i.MX8MP
  - Implement better RCG parking on Qualcomm SoCs using the shared RCG clk ops
  - Kerneldoc fixes
  - Switch Tegra BPMP to determine_rate clk op
  - Add a pointer to dt schema for generic clock bindings
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Merge tag 'clk-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/clk/linux

Pull clk updates from Stephen Boyd:
 "Mainly driver updates this time around.

  There's a single patch to the core clk framework that simplifies a
  runtime PM call. Otherwise the majority of the diff falls to a few SoC
  drivers: Qualcomm, STM32 and MediaTek. Those SoCs gain some new
  hardware support and what comes along with that is quite a few lines
  of data and some clk_ops code.

  Beyond the new hardware support we have the usual pile of driver
  updates that add missing clks on already supported SoCs or fix up
  problems like bad clk tree descriptions. It's nice to see that more
  drivers are moving to clk_hw based APIs too.

  New Drivers:
   - Add STM32MP13 RCC driver (Reset Clock Controller)
   - MediaTek MT8186 SoC clk support
   - Airoha EN7523 SoC system clocks
   - Clock driver for exynosautov9 SoC
   - Renesas R-Car V4H and RZ/V2M SoCs
   - Renesas RZ/G2UL SoC
   - LPASS clk driver for Qualcomm sc7280 SoC
   - GCC clk driver for Qualcomm SC8280XP SoC

  Updates:
   - SDCC uses floor clk ops on Qualcomm MSM8976
   - Add modem reset and fix RPM clks on Qualcomm MSM8976
   - Add the two missing CLKOUT clocks for U8500/DB8500 SoC
   - Mark some clks critical on Ingenic X1000
   - Convert ux500 to clk_hw
   - Move MediaTek driver to clk_hw provider APIs
   - Use i2c driver probe_new to avoid id scans
   - Convert a number of Rockchip dt bindings to YAML
   - Mark hclk_vo critical on Rockchip rk3568
   - Use pm_runtime_resume_and_get to fix pm_runtime_get_sync() usage
   - Various cleanups like memory allocation error checks and plugged
     leaks
   - Allwinner H6 RTC clock support
   - Allwinner H616 32 kHz clock support
   - Add the Universal Flash Storage clock on Renesas R-Car S4-8
   - Add I2C, SSIF-2 (sound), USB, CANFD, OSTM (timer), WDT, SPI Multi
     I/O Bus, RSPI, TSU (thermal), and ADC clocks and resets on Renesas
     RZ/G2UL
   - Add display clock support on Renesas RZ/G2L
   - Add RPC (QSPI/HyperFlash) clocks on Renesas R-Car E3 and D3
   - Add 27 MHz phy PLL ref clock on i.MX
   - Add mcore_booted module parameter to tell kernel M core has already
     booted for i.MX
   - Remove snvs clock on i.MX because it was for secure world only
   - Add dt bindings for i.MX8MN GPT
   - Add DISP2 pixel clock for i.MX8MP
   - Add clkout1/2 for i.MX8MP
   - Fix parent clock of ubs_root_clk for i.MX8MP
   - Implement better RCG parking on Qualcomm SoCs using the shared RCG
     clk ops
   - Kerneldoc fixes
   - Switch Tegra BPMP to determine_rate clk op
   - Add a pointer to dt schema for generic clock bindings"

* tag 'clk-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/clk/linux: (168 commits)
  Revert "clk: qcom: regmap-mux: add pipe clk implementation"
  Revert "clk: qcom: gcc-sc7280: use new clk_regmap_mux_safe_ops for PCIe pipe clocks"
  Revert "clk: qcom: gcc-sm8450: use new clk_regmap_mux_safe_ops for PCIe pipe clocks"
  clk: bcm: rpi: Use correct order for the parameters of devm_kcalloc()
  clk: stm32mp13: add safe mux management
  clk: stm32mp13: add multi mux function
  clk: stm32mp13: add all STM32MP13 kernel clocks
  clk: stm32mp13: add all STM32MP13 peripheral clocks
  clk: stm32mp13: manage secured clocks
  clk: stm32mp13: add composite clock
  clk: stm32mp13: add stm32 divider clock
  clk: stm32mp13: add stm32_gate management
  clk: stm32mp13: add stm32_mux clock management
  clk: stm32: Introduce STM32MP13 RCC drivers (Reset Clock Controller)
  dt-bindings: rcc: stm32: add new compatible for STM32MP13 SoC
  clk: ti: clkctrl: replace usage of found with dedicated list iterator variable
  clk: ti: composite: Prefer kcalloc over open coded arithmetic
  dt-bindings: clock: exynosautov9: correct count of NR_CLK
  clk: mediatek: mt8173: Switch to clk_hw provider APIs
  clk: mediatek: Switch to clk_hw provider APIs
  ...
2022-05-27 15:33:24 -07:00
Linus Torvalds
3cc30140db pci-v5.19-changes
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Merge tag 'pci-v5.19-changes' of git://git.kernel.org/pub/scm/linux/kernel/git/helgaas/pci

Pull pci updates from Bjorn Helgaas:
 "Resource management:

   - Restrict E820 clipping to PCI host bridge windows (Bjorn Helgaas)

   - Log E820 clipping better (Bjorn Helgaas)

   - Add kernel cmdline options to enable/disable E820 clipping (Hans de
     Goede)

   - Disable E820 reserved region clipping for IdeaPads, Yoga, Yoga
     Slip, Acer Spin 5, Clevo Barebone systems where clipping leaves no
     usable address space for touchpads, Thunderbolt devices, etc (Hans
     de Goede)

   - Disable E820 clipping by default starting in 2023 (Hans de Goede)

  PCI device hotplug:

   - Include files to remove implicit dependencies (Christophe Leroy)

   - Only put Root Ports in D3 if they can signal and wake from D3 so
     AMD Yellow Carp doesn't miss hotplug events (Mario Limonciello)

  Power management:

   - Define pci_restore_standard_config() only for CONFIG_PM_SLEEP since
     it's unused otherwise (Krzysztof Kozlowski)

   - Power up devices completely, including anything platform firmware
     needs to do, during runtime resume (Rafael J. Wysocki)

   - Move pci_resume_bus() to PM callbacks so we observe the required
     bridge power-up delays (Rafael J. Wysocki)

   - Drop unneeded runtime_d3cold device flag (Rafael J. Wysocki)

   - Split pci_raw_set_power_state() between pci_power_up() and a new
     pci_set_low_power_state() (Rafael J. Wysocki)

   - Set current_state to D3cold if config read returns ~0, indicating
     the device is not accessible (Rafael J. Wysocki)

   - Do not call pci_update_current_state() from pci_power_up() so BARs
     and ASPM config are restored correctly (Rafael J. Wysocki)

   - Write 0 to PMCSR in pci_power_up() in all cases (Rafael J. Wysocki)

   - Split pci_power_up() to pci_set_full_power_state() to avoid some
     redundant operations (Rafael J. Wysocki)

   - Skip restoring BARs if device is not in D0 (Rafael J. Wysocki)

   - Rearrange and clarify pci_set_power_state() (Rafael J. Wysocki)

   - Remove redundant BAR restores from pci_pm_thaw_noirq() (Rafael J.
     Wysocki)

  Virtualization:

   - Acquire device lock before config space access lock to avoid AB/BA
     deadlock with sriov_numvfs_store() (Yicong Yang)

  Error handling:

   - Clear MULTI_ERR_COR/UNCOR_RCV bits, which a race could previously
     leave permanently set (Kuppuswamy Sathyanarayanan)

  Peer-to-peer DMA:

   - Whitelist Intel Skylake-E Root Ports regardless of which devfn they
     are (Shlomo Pongratz)

  ASPM:

   - Override L1 acceptable latency advertised by Intel DG2 so ASPM L1
     can be enabled (Mika Westerberg)

  Cadence PCIe controller driver:

   - Set up device-specific register to allow PTM Responder to be
     enabled by the normal architected bit (Christian Gmeiner)

   - Override advertised FLR support since the controller doesn't
     implement FLR correctly (Parshuram Thombare)

  Cadence PCIe endpoint driver:

   - Correct bitmap size for the ob_region_map of outbound window usage
     (Dan Carpenter)

  Freescale i.MX6 PCIe controller driver:

   - Fix PERST# assertion/deassertion so we observe the required delays
     before accessing device (Francesco Dolcini)

  Freescale Layerscape PCIe controller driver:

   - Add "big-endian" DT property (Hou Zhiqiang)

   - Update SCFG DT property (Hou Zhiqiang)

   - Add "aer", "pme", "intr" DT properties (Li Yang)

   - Add DT compatible strings for ls1028a (Xiaowei Bao)

  Intel VMD host bridge driver:

   - Assign VMD IRQ domain before enumeration to avoid IOMMU interrupt
     remapping errors when MSI-X remapping is disabled (Nirmal Patel)

   - Revert VMD workaround that kept MSI-X remapping enabled when IOMMU
     remapping was enabled (Nirmal Patel)

  Marvell MVEBU PCIe controller driver:

   - Add of_pci_get_slot_power_limit() to parse the
     'slot-power-limit-milliwatt' DT property (Pali Rohár)

   - Add mvebu support for sending Set_Slot_Power_Limit message (Pali
     Rohár)

  MediaTek PCIe controller driver:

   - Fix refcount leak in mtk_pcie_subsys_powerup() (Miaoqian Lin)

  MediaTek PCIe Gen3 controller driver:

   - Reset PHY and MAC at probe time (AngeloGioacchino Del Regno)

  Microchip PolarFlare PCIe controller driver:

   - Add chained_irq_enter()/chained_irq_exit() calls to mc_handle_msi()
     and mc_handle_intx() to avoid lost interrupts (Conor Dooley)

   - Fix interrupt handling race (Daire McNamara)

  NVIDIA Tegra194 PCIe controller driver:

   - Drop tegra194 MSI register save/restore, which is unnecessary since
     the DWC core does it (Jisheng Zhang)

  Qualcomm PCIe controller driver:

   - Add SM8150 SoC DT binding and support (Bhupesh Sharma)

   - Fix pipe clock imbalance (Johan Hovold)

   - Fix runtime PM imbalance on probe errors (Johan Hovold)

   - Fix PHY init imbalance on probe errors (Johan Hovold)

   - Convert DT binding to YAML (Dmitry Baryshkov)

   - Update DT binding to show that resets aren't required for
     MSM8996/APQ8096 platforms (Dmitry Baryshkov)

   - Add explicit register names per chipset in DT binding (Dmitry
     Baryshkov)

   - Add sc7280-specific clock and reset definitions to DT binding
     (Dmitry Baryshkov)

  Rockchip PCIe controller driver:

   - Fix bitmap size when searching for free outbound region (Dan
     Carpenter)

  Rockchip DesignWare PCIe controller driver:

   - Remove "snps,dw-pcie" from rockchip-dwc DT "compatible" property
     because it's not fully compatible with rockchip (Peter Geis)

   - Reset rockchip-dwc controller at probe (Peter Geis)

   - Add rockchip-dwc INTx support (Peter Geis)

  Synopsys DesignWare PCIe controller driver:

   - Return error instead of success if DMA mapping of MSI area fails
     (Jiantao Zhang)

  Miscellaneous:

   - Change pci_set_dma_mask() documentation references to
     dma_set_mask() (Alex Williamson)"

* tag 'pci-v5.19-changes' of git://git.kernel.org/pub/scm/linux/kernel/git/helgaas/pci: (64 commits)
  dt-bindings: PCI: qcom: Add schema for sc7280 chipset
  dt-bindings: PCI: qcom: Specify reg-names explicitly
  dt-bindings: PCI: qcom: Do not require resets on msm8996 platforms
  dt-bindings: PCI: qcom: Convert to YAML
  PCI: qcom: Fix unbalanced PHY init on probe errors
  PCI: qcom: Fix runtime PM imbalance on probe errors
  PCI: qcom: Fix pipe clock imbalance
  PCI: qcom: Add SM8150 SoC support
  dt-bindings: pci: qcom: Document PCIe bindings for SM8150 SoC
  x86/PCI: Disable E820 reserved region clipping starting in 2023
  x86/PCI: Disable E820 reserved region clipping via quirks
  x86/PCI: Add kernel cmdline options to use/ignore E820 reserved regions
  PCI: microchip: Fix potential race in interrupt handling
  PCI/AER: Clear MULTI_ERR_COR/UNCOR_RCV bits
  PCI: cadence: Clear FLR in device capabilities register
  PCI: cadence: Allow PTM Responder to be enabled
  PCI: vmd: Revert 2565e5b69c ("PCI: vmd: Do not disable MSI-X remapping if interrupt remapping is enabled by IOMMU.")
  PCI: vmd: Assign VMD IRQ domain before enumeration
  PCI: Avoid pci_dev_lock() AB/BA deadlock with sriov_numvfs_store()
  PCI: rockchip-dwc: Add legacy interrupt support
  ...
2022-05-27 15:25:10 -07:00
Arnd Bergmann
8a1e75c53c Clock properties for cru nodes to match the yaml-converted bindings
and renaming of Quartz-A bluetooth pin nodename to not conflict with
 Yaml constraints.
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Merge tag 'v5.19-rockchip-dts64-2' of git://git.kernel.org/pub/scm/linux/kernel/git/mmind/linux-rockchip into arm/late

Clock properties for cru nodes to match the yaml-converted bindings
and renaming of Quartz-A bluetooth pin nodename to not conflict with
Yaml constraints.

* tag 'v5.19-rockchip-dts64-2' of git://git.kernel.org/pub/scm/linux/kernel/git/mmind/linux-rockchip:
  arm64: dts: rockchip: rename Quartz64-A bluetooth gpios
  arm64: dts: rockchip: add clocks property to cru node rk3368
  arm64: dts: rockchip: add clocks property to cru node rk3308
  arm64: dts: rockchip: add clocks to rk356x cru

Link: https://lore.kernel.org/r/7695907.Sb9uPGUboI@phil
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
2022-05-27 22:21:09 +02:00
Arnd Bergmann
440517772b Amba and clock fixes to conform better to actual dt-bindings.
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Merge tag 'v5.19-rockchip-dts32-2' of git://git.kernel.org/pub/scm/linux/kernel/git/mmind/linux-rockchip into arm/late

Amba and clock fixes to conform better to actual dt-bindings.

* tag 'v5.19-rockchip-dts32-2' of git://git.kernel.org/pub/scm/linux/kernel/git/mmind/linux-rockchip:
  ARM: dts: rockchip: add clocks property to cru node rk3228
  ARM: dts: rockchip: add clocks property to cru node rk3036
  ARM: dts: rockchip: add clocks property to cru node rk3066a/rk3188
  ARM: dts: rockchip: add clocks property to cru node rk3288
  ARM: dts: rockchip: Remove "amba" bus nodes from rv1108
  ARM: dts: rockchip: add clocks property to cru node rv1108

Link: https://lore.kernel.org/r/4798587.jE0xQCEvom@phil
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
2022-05-27 22:20:32 +02:00
Linus Torvalds
77fb622de1 Six hotfixes. One from Miaohe Lin is considered a minor thing so it isn't
for -stable.  The remainder address pre-5.19 issues and are cc:stable.
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Merge tag 'mm-hotfixes-stable-2022-05-27' of git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm

Pull hotfixes from Andrew Morton:
 "Six hotfixes.

  The page_table_check one from Miaohe Lin is considered a minor thing
  so it isn't marked for -stable. The remainder address pre-5.19 issues
  and are cc:stable"

* tag 'mm-hotfixes-stable-2022-05-27' of git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm:
  mm/page_table_check: fix accessing unmapped ptep
  kexec_file: drop weak attribute from arch_kexec_apply_relocations[_add]
  mm/page_alloc: always attempt to allocate at least one page during bulk allocation
  hugetlb: fix huge_pmd_unshare address update
  zsmalloc: fix races between asynchronous zspage free and page migration
  Revert "mm/cma.c: remove redundant cma_mutex lock"
2022-05-27 11:29:35 -07:00
Linus Torvalds
6f664045c8 Not a lot of material this cycle. Many singleton patches against various
subsystems.   Most notably some maintenance work in ocfs2 and initramfs.
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Merge tag 'mm-nonmm-stable-2022-05-26' of git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm

Pull misc updates from Andrew Morton:
 "The non-MM patch queue for this merge window.

  Not a lot of material this cycle. Many singleton patches against
  various subsystems. Most notably some maintenance work in ocfs2
  and initramfs"

* tag 'mm-nonmm-stable-2022-05-26' of git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm: (65 commits)
  kcov: update pos before writing pc in trace function
  ocfs2: dlmfs: fix error handling of user_dlm_destroy_lock
  ocfs2: dlmfs: don't clear USER_LOCK_ATTACHED when destroying lock
  fs/ntfs: remove redundant variable idx
  fat: remove time truncations in vfat_create/vfat_mkdir
  fat: report creation time in statx
  fat: ignore ctime updates, and keep ctime identical to mtime in memory
  fat: split fat_truncate_time() into separate functions
  MAINTAINERS: add Muchun as a memcg reviewer
  proc/sysctl: make protected_* world readable
  ia64: mca: drop redundant spinlock initialization
  tty: fix deadlock caused by calling printk() under tty_port->lock
  relay: remove redundant assignment to pointer buf
  fs/ntfs3: validate BOOT sectors_per_clusters
  lib/string_helpers: fix not adding strarray to device's resource list
  kernel/crash_core.c: remove redundant check of ck_cmdline
  ELF, uapi: fixup ELF_ST_TYPE definition
  ipc/mqueue: use get_tree_nodev() in mqueue_get_tree()
  ipc: update semtimedop() to use hrtimer
  ipc/sem: remove redundant assignments
  ...
2022-05-27 11:22:03 -07:00
Baolin Wang
e68b823ab0 arm64/hugetlb: Fix building errors in huge_ptep_clear_flush()
Fix the arm64 build error which was caused by commit ae07562909 ("mm:
change huge_ptep_clear_flush() to return the original pte") interacting
with commit fb396bb459 ("arm64/hugetlb: Drop TLB flush from
get_clear_flush()"):

  arch/arm64/mm/hugetlbpage.c: In function ‘huge_ptep_clear_flush’:
  arch/arm64/mm/hugetlbpage.c:515:9: error: implicit declaration of function ‘get_clear_flush’; did you mean ‘ptep_clear_flush’? [-Werror=implicit-function-declaration]
    515 |  return get_clear_flush(vma->vm_mm, addr, ptep, pgsize, ncontig);
        |         ^~~~~~~~~~~~~~~
        |         ptep_clear_flush

Due to the new get_clear_contig() has dropped TLB flush, we should add
an explicit TLB flush in huge_ptep_clear_flush() to keep original
semantics when changing to use new get_clear_contig().

Fixes: fb396bb459 ("arm64/hugetlb: Drop TLB flush from get_clear_flush()").
Fixes: ae07562909 ("mm: change huge_ptep_clear_flush() to return the original pte")
Reported-and-tested-by: Linux Kernel Functional Testing <lkft@linaro.org>
Reported-by: Sudip Mukherjee <sudipm.mukherjee@gmail.com>
Suggested-by: Catalin Marinas <catalin.marinas@arm.com>
Signed-off-by: Baolin Wang <baolin.wang@linux.alibaba.com>
Reviewed-by: Gavin Shan <gshan@redhat.com>
Reviewed-by: Anshuman Khandual <anshuman.khandual@arm.com>
Cc: Catalin Marinas <catalin.marinas@arm.com>
Cc: Anshuman Khandual <anshuman.khandual@arm.com>
Cc: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2022-05-27 10:56:35 -07:00
Peter Geis
cd414d5ac1 arm64: dts: rockchip: rename Quartz64-A bluetooth gpios
The bluetooth binding for the Quartz64 Model A has incorrectly named
host-wakeup and device-wakeup gpios. Rename them to clear some dtbs_check
warnings.

Signed-off-by: Peter Geis <pgwipeout@gmail.com>
Link: https://lore.kernel.org/r/20220511150117.113070-4-pgwipeout@gmail.com
Signed-off-by: Heiko Stuebner <heiko@sntech.de>
2022-05-27 19:31:24 +02:00
Johan Jonker
3d65818cd6 arm64: dts: rockchip: add clocks property to cru node rk3368
Add clocks and clock-names because the device has to have
at least one input clock.
Also in case someone wants to add properties that start with
assign-xxx to fix warnings like:
'clocks' is a dependency of 'assigned-clocks'

Signed-off-by: Johan Jonker <jbx6244@gmail.com>
Link: https://lore.kernel.org/r/20220329180550.31043-2-jbx6244@gmail.com
Signed-off-by: Heiko Stuebner <heiko@sntech.de>
2022-05-27 19:31:23 +02:00
Johan Jonker
2d36391216 arm64: dts: rockchip: add clocks property to cru node rk3308
Add clocks and clock-names to the rk3308 cru node, because
the device has to have at least one input clock.
Also in case someone wants to add properties that start with
assign-xxx to fix warnings like:
'clocks' is a dependency of 'assigned-clocks'
With the addition of new properties also sort the node properties
a little bit.

Signed-off-by: Johan Jonker <jbx6244@gmail.com>
Link: https://lore.kernel.org/r/20220329184339.1134-2-jbx6244@gmail.com
Signed-off-by: Heiko Stuebner <heiko@sntech.de>
2022-05-27 19:31:23 +02:00
Peter Geis
cd2d081d18 arm64: dts: rockchip: add clocks to rk356x cru
The rk356x cru requires a 24m clock input to function. Add the clocks
properties to the cru to clear some dtbs_check warnings.

Signed-off-by: Peter Geis <pgwipeout@gmail.com>
Link: https://lore.kernel.org/r/20220511150117.113070-3-pgwipeout@gmail.com
Signed-off-by: Heiko Stuebner <heiko@sntech.de>
2022-05-27 19:31:23 +02:00
Johan Jonker
840fc447d7 ARM: dts: rockchip: add clocks property to cru node rk3228
Add clocks and clock-names to the rk3228 cru node, because
the device has to have at least one input clock.

Signed-off-by: Johan Jonker <jbx6244@gmail.com>
Link: https://lore.kernel.org/r/20220330121923.24240-2-jbx6244@gmail.com
Signed-off-by: Heiko Stuebner <heiko@sntech.de>
2022-05-27 19:27:00 +02:00
Johan Jonker
8dd85bffc5 ARM: dts: rockchip: add clocks property to cru node rk3036
Add clocks and clock-names to the rk3036 cru node, because
the device has to have at least one input clock.

Signed-off-by: Johan Jonker <jbx6244@gmail.com>
Link: https://lore.kernel.org/r/20220330114847.18633-2-jbx6244@gmail.com
Signed-off-by: Heiko Stuebner <heiko@sntech.de>
2022-05-27 19:27:00 +02:00
Johan Jonker
25f417b563 ARM: dts: rockchip: add clocks property to cru node rk3066a/rk3188
Add clocks property to rk3066a/rk3188 cru node to fix warnings like:
'clocks' is a dependency of 'assigned-clocks'

Signed-off-by: Johan Jonker <jbx6244@gmail.com>
Link: https://lore.kernel.org/r/20220329111323.3569-2-jbx6244@gmail.com
Signed-off-by: Heiko Stuebner <heiko@sntech.de>
2022-05-27 19:27:00 +02:00
Johan Jonker
9d66847be3 ARM: dts: rockchip: add clocks property to cru node rk3288
Add clocks property to rk3288 cru node to fix warnings like:
'clocks' is a dependency of 'assigned-clocks'.

Signed-off-by: Johan Jonker <jbx6244@gmail.com>
Link: https://lore.kernel.org/r/20220329113657.4567-2-jbx6244@gmail.com
Signed-off-by: Heiko Stuebner <heiko@sntech.de>
2022-05-27 19:27:00 +02:00
Johan Jonker
e8cead54a6 ARM: dts: rockchip: Remove "amba" bus nodes from rv1108
The "amba" bus nodes wrapping all the DMA-330 nodes serve no useful
purpose, and certainly bear no relation at all to the actual underlying
interconnect topology. They appear to be cargo-cult copying from a
design misstep in the very early days of FDT adoption on ARM, which was
righted with the "arm,primecell" compatible, and the last trace of the
idea finally purged by commit 2ef7d5f342 ("ARM, ARM64: dts: drop
"arm,amba-bus" in favor of "simple-bus"").

As such, they can simply be removed and the DMA-330 nodes fitted into
the normal sort order.
The node names should be generic, so rename it to "dma-controller".

Signed-off-by: Johan Jonker <jbx6244@gmail.com>
Link: https://lore.kernel.org/r/20220330131608.30040-3-jbx6244@gmail.com
Signed-off-by: Heiko Stuebner <heiko@sntech.de>
2022-05-27 19:27:00 +02:00
Johan Jonker
f7230dcfb4 ARM: dts: rockchip: add clocks property to cru node rv1108
Add clocks and clock-names to the rv1108 cru node, because
the device has to have at least one input clock.

Signed-off-by: Johan Jonker <jbx6244@gmail.com>
Link: https://lore.kernel.org/r/20220330131608.30040-2-jbx6244@gmail.com
Signed-off-by: Heiko Stuebner <heiko@sntech.de>
2022-05-27 19:27:00 +02:00
Naveen N. Rao
3e35142ef9 kexec_file: drop weak attribute from arch_kexec_apply_relocations[_add]
Since commit d1bcae833b32f1 ("ELF: Don't generate unused section
symbols") [1], binutils (v2.36+) started dropping section symbols that
it thought were unused.  This isn't an issue in general, but with
kexec_file.c, gcc is placing kexec_arch_apply_relocations[_add] into a
separate .text.unlikely section and the section symbol ".text.unlikely"
is being dropped. Due to this, recordmcount is unable to find a non-weak
symbol in .text.unlikely to generate a relocation record against.

Address this by dropping the weak attribute from these functions.
Instead, follow the existing pattern of having architectures #define the
name of the function they want to override in their headers.

[1] https://sourceware.org/git/?p=binutils-gdb.git;a=commit;h=d1bcae833b32f1

[akpm@linux-foundation.org: arch/s390/include/asm/kexec.h needs linux/module.h]
Link: https://lkml.kernel.org/r/20220519091237.676736-1-naveen.n.rao@linux.vnet.ibm.com
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Signed-off-by: Naveen N. Rao <naveen.n.rao@linux.vnet.ibm.com>
Cc: "Eric W. Biederman" <ebiederm@xmission.com>
Cc: <stable@vger.kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
2022-05-27 08:55:18 -07:00
Krzysztof Kozlowski
6fe1953e00
arm64: dts: sprd: use new 'dma-channels' property
The '#dma-channels' property was deprecated in favor of one defined by
generic dma-common DT bindings.  Add new property while keeping old one
for backwards compatibility.

Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Reviewed-by: Baolin Wang <baolin.wang7@gmail.com>
Link: https://lore.kernel.org/r/20220516142857.6419-4-krzysztof.kozlowski@linaro.org'
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
2022-05-27 16:07:34 +02:00
Krzysztof Kozlowski
22a798d7b2
ARM: dts: da850: use new 'dma-channels' property
The '#dma-channels' property was deprecated in favor of one defined by
generic dma-common DT bindings.  Add new property while keeping old one
for backwards compatibility.

Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Link: https://lore.kernel.org/r/20220516142857.6419-3-krzysztof.kozlowski@linaro.org'
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
2022-05-27 16:07:34 +02:00
Krzysztof Kozlowski
286b807354
ARM: dts: pxa: use new 'dma-channels/requests' properties
The '#dma-channels' and '#dma-requests' properties were deprecated in
favor of these defined by generic dma-common DT bindings.  Add new
properties while keeping old ones for backwards compatibility.

Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Link: https://lore.kernel.org/r/20220516142857.6419-2-krzysztof.kozlowski@linaro.org'
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
2022-05-27 16:07:34 +02:00
Alexander Sverdlin
75577fbecb
ARM: ep93xx: Make ts72xx_register_flash() static
... and fix the warning/error:

arch/arm/mach-ep93xx/ts72xx.c:154:13: error: no previous prototype for function 'ts72xx_register_flash' [-Werror,-Wmissing-prototypes]
void __init ts72xx_register_flash(struct mtd_partition *parts, int n,
            ^
arch/arm/mach-ep93xx/ts72xx.c:154:1: note: declare 'static' if the function is not intended to be used outside of this translation unit
void __init ts72xx_register_flash(struct mtd_partition *parts, int n,
^
static

Reported-by: kernel test robot <lkp@intel.com>
Signed-off-by: Alexander Sverdlin <alexander.sverdlin@gmail.com>
Link: https://lore.kernel.org/lkml/202202140141.HRZ3WZwi-lkp@intel.com/T/
Link: https://lore.kernel.org/r/20220523065616.325052-1-alexander.sverdlin@gmail.com'
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
2022-05-27 16:00:58 +02:00
Michael Walle
01ba87a4b7
ARM: configs: enable support for Kontron KSwitch D10
The Kontron KSwitch D10 is based on a Microchip LAN9668 SoC. It is a
managed ethernet network switch with either 8 copper ports or 6 copper
ports and 2 SFP cages.

Enable all required kconfig symbols, either as module where possible or
compiled-in where it is not possible.

Signed-off-by: Michael Walle <michael@walle.cc>
Acked-by: Nicolas Ferre <nicolas.ferre@microchip.com>
Link: https://lore.kernel.org/r/20220518141542.531148-1-michael@walle.cc'
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
2022-05-27 16:00:41 +02:00
Arnd Bergmann
2ef306e16e AT91 DT #2 for 5.19:
- at91: more DT compliance updates for RTC and RTT nodes
 - at91: sama7g5: add microphone support
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Merge tag 'at91-dt-5.19-2' of git://git.kernel.org/pub/scm/linux/kernel/git/at91/linux into arm/late

AT91 DT #2 for 5.19:

- at91: more DT compliance updates for RTC and RTT nodes
- at91: sama7g5: add microphone support

* tag 'at91-dt-5.19-2' of git://git.kernel.org/pub/scm/linux/kernel/git/at91/linux:
  ARM: dts: at91: sama7g5ek: add node for PDMC0
  ARM: dts: at91: sama7g5: add nodes for PDMC
  ARM: dts: at91: Use the generic "rtc" node name for the rtt IPs
  ARM: dts: at91: Add the required 'atmel, rtt-rtc-time-reg' property

Link: https://lore.kernel.org/r/20220517153252.92393-1-nicolas.ferre@microchip.com
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
2022-05-27 15:56:49 +02:00
Arnd Bergmann
fd82d925f2 AT91 SoC #2 for 5.19:
- One Kconfig fix for random build error
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Merge tag 'at91-soc-5.19-2' of git://git.kernel.org/pub/scm/linux/kernel/git/at91/linux into arm/late

AT91 SoC #2 for 5.19:

- One Kconfig fix for random build error

* tag 'at91-soc-5.19-2' of git://git.kernel.org/pub/scm/linux/kernel/git/at91/linux:
  ARM: at91: pm: Fix rand build error

Link: https://lore.kernel.org/r/20220517150832.89451-1-nicolas.ferre@microchip.com
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
2022-05-27 15:56:30 +02:00
Genjian Zhang
8a7322a3a0 ep93xx: clock: Do not return the address of the freed memory
Avoid return freed memory addresses,Modified to the actual error
return value of clk_register().

Fixes: 9645ccc7bd ("ep93xx: clock: convert in-place to COMMON_CLK")
Signed-off-by: Genjian Zhang <zhanggenjian@kylinos.cn>
Acked-by: Alexander Sverdlin <alexander.sverdlin@gmail.com>
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
2022-05-27 15:55:44 +02:00
Arnd Bergmann
3e11194631
Merge branch 'hpe/gxp-soc' into arm/late
Patch series from Nick Hawkins:

"The GXP is the HPE BMC SoC that is used in the majority of HPE current
 generation servers. Traditionally the asic will last multiple
 generations of server before being replaced.

 Info about SoC:

  HPE GXP is the name of the HPE Soc. This SoC is used to implement many
  BMC features at HPE. It supports ARMv7 architecture based on the Cortex
  A9 core. It is capable of using an AXI bus to which a memory controller
  is attached. It has multiple SPI interfaces to connect boot flash and
  BIOS flash. It uses a 10/100/1000 MAC for network connectivity. It has
  multiple i2c engines to drive connectivity with a host infrastructure.
  The initial patches enable the watchdog and timer enabling the host to
  be able to boot."

* hpe/gxp-soc:
  MAINTAINERS: Introduce HPE GXP Architecture
  ARM: dts: Introduce HPE GXP Device tree
  dt-bindings: arm: hpe: add GXP Support
  dt-bindings: timer: hpe,gxp-timer: Add HPE GXP Timer and Watchdog
  clocksource/drivers/timer-gxp: Add HPE GXP Timer
  watchdog: hpe-wdt: Introduce HPE GXP Watchdog
  ARM: configs: multi_v7_defconfig: Add HPE GXP ARCH
  ARM: hpe: Introduce the HPE GXP architecture

Signed-off-by: Arnd Bergmann <arnd@arndb.de>
2022-05-27 15:55:37 +02:00
Michael Ellerman
dcf280e6f8 powerpc/64: Include cache.h directly in paca.h
paca.h uses ____cacheline_aligned without directly including cache.h,
where it's defined.

For Book3S builds that's OK because paca.h includes lppaca.h, and it
does include cache.h.

But Book3E builds have been getting cache.h indirectly via printk.h,
which is dicey, and in fact that include was recently removed, leading
to build errors such as:

  ld: fs/isofs/dir.o:(.bss+0x0): multiple definition of `____cacheline_aligned'; fs/isofs/namei.o:(.bss+0x0): first defined here

So include cache.h directly to fix the build error.

Fixes: 534aa1dc97 ("printk: stop including cache.h from printk.h")
Reported-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
2022-05-27 22:20:09 +10:00
Borislav Petkov
2028a255f4 x86/extable: Annotate ex_handler_msr_mce() as a dead end
Fix

  vmlinux.o: warning: objtool: fixup_exception+0x2d6: unreachable instruction

Signed-off-by: Borislav Petkov <bp@suse.de>
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Link: https://lkml.kernel.org/r/20220520192729.23969-1-bp@alien8.de
2022-05-27 12:34:45 +02:00
Peter Zijlstra
1894a40305 x86: Always inline on_thread_stack() and current_top_of_stack()
Becaues GCC clearly lost it's marbles again...

vmlinux.o: warning: objtool: enter_from_user_mode+0x4e: call to on_thread_stack() leaves .noinstr.text section
vmlinux.o: warning: objtool: syscall_enter_from_user_mode+0x53: call to on_thread_stack() leaves .noinstr.text section
vmlinux.o: warning: objtool: syscall_enter_from_user_mode_prepare+0x4e: call to on_thread_stack() leaves .noinstr.text section
vmlinux.o: warning: objtool: irqentry_enter_from_user_mode+0x4e: call to on_thread_stack() leaves .noinstr.text section

vmlinux.o: warning: objtool: enter_from_user_mode+0x4e: call to current_top_of_stack() leaves .noinstr.text section
vmlinux.o: warning: objtool: syscall_enter_from_user_mode+0x53: call to current_top_of_stack() leaves .noinstr.text section
vmlinux.o: warning: objtool: syscall_enter_from_user_mode_prepare+0x4e: call to current_top_of_stack() leaves .noinstr.text section
vmlinux.o: warning: objtool: irqentry_enter_from_user_mode+0x4e: call to current_top_of_stack() leaves .noinstr.text section

Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Link: https://lkml.kernel.org/r/20220526105958.071435483@infradead.org
2022-05-27 12:34:44 +02:00
Peter Zijlstra
a6a5eb269f x86/cpu: Elide KCSAN for cpu_has() and friends
As x86 uses the <asm-generic/bitops/instrumented-*.h> headers, the
regular forms of all bitops are instrumented with explicit calls to
KASAN and KCSAN checks. As these are explicit calls, these are not
suppressed by the noinstr function attribute.

This can result in calls to those check functions in noinstr code, which
objtool warns about:

vmlinux.o: warning: objtool: enter_from_user_mode+0x24: call to __kcsan_check_access() leaves .noinstr.text section
vmlinux.o: warning: objtool: syscall_enter_from_user_mode+0x28: call to __kcsan_check_access() leaves .noinstr.text section
vmlinux.o: warning: objtool: syscall_enter_from_user_mode_prepare+0x24: call to __kcsan_check_access() leaves .noinstr.text section
vmlinux.o: warning: objtool: irqentry_enter_from_user_mode+0x24: call to __kcsan_check_access() leaves .noinstr.text section

Prevent this by using the arch_*() bitops, which are the underlying
bitops without explciit instrumentation.

[null: Changelog]
Reported-by: kernel test robot <lkp@intel.com>
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Link: https://lkml.kernel.org/r/20220502111216.290518605@infradead.org
2022-05-27 12:34:43 +02:00
Josh Poimboeuf
5f3da8c085 objtool: Add CONFIG_HAVE_UACCESS_VALIDATION
Allow an arch specify that it has objtool uaccess validation with
CONFIG_HAVE_UACCESS_VALIDATION.  For now, doing so unconditionally
selects CONFIG_OBJTOOL.

Signed-off-by: Josh Poimboeuf <jpoimboe@redhat.com>
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Link: https://lkml.kernel.org/r/d393d5e2fe73aec6e8e41d5c24f4b6fe8583f2d8.1650384225.git.jpoimboe@redhat.com
2022-05-27 12:34:43 +02:00
Fanjun Kong
e19d11267f x86/mm: Use PAGE_ALIGNED(x) instead of IS_ALIGNED(x, PAGE_SIZE)
The <linux/mm.h> already provides the PAGE_ALIGNED() macro. Let's
use this macro instead of IS_ALIGNED() and passing PAGE_SIZE directly.

No change in functionality.

[ mingo: Tweak changelog. ]

Signed-off-by: Fanjun Kong <bh1scw@gmail.com>
Signed-off-by: Ingo Molnar <mingo@kernel.org>
Link: https://lore.kernel.org/r/20220526142038.1582839-1-bh1scw@gmail.com
2022-05-27 12:19:56 +02:00
Bo Liu
f7081834b2 x86: Fix all occurences of the "the the" typo
Rather than waiting for the bots to fix these one-by-one,
fix all occurences of "the the" throughout arch/x86.

Signed-off-by: Bo Liu <liubo03@inspur.com>
Signed-off-by: Ingo Molnar <mingo@kernel.org>
Cc: Paolo Bonzini <pbonzini@redhat.com>
Link: https://lore.kernel.org/r/20220527061400.5694-1-liubo03@inspur.com
2022-05-27 12:15:39 +02:00
Vincent Whitchurch
2a4a62a14b um: Fix out-of-bounds read in LDT setup
syscall_stub_data() expects the data_count parameter to be the number of
longs, not bytes.

 ==================================================================
 BUG: KASAN: stack-out-of-bounds in syscall_stub_data+0x70/0xe0
 Read of size 128 at addr 000000006411f6f0 by task swapper/1

 CPU: 0 PID: 1 Comm: swapper Not tainted 5.18.0+ #18
 Call Trace:
  show_stack.cold+0x166/0x2a7
  __dump_stack+0x3a/0x43
  dump_stack_lvl+0x1f/0x27
  print_report.cold+0xdb/0xf81
  kasan_report+0x119/0x1f0
  kasan_check_range+0x3a3/0x440
  memcpy+0x52/0x140
  syscall_stub_data+0x70/0xe0
  write_ldt_entry+0xac/0x190
  init_new_ldt+0x515/0x960
  init_new_context+0x2c4/0x4d0
  mm_init.constprop.0+0x5ed/0x760
  mm_alloc+0x118/0x170
  0x60033f48
  do_one_initcall+0x1d7/0x860
  0x60003e7b
  kernel_init+0x6e/0x3d4
  new_thread_handler+0x1e7/0x2c0

 The buggy address belongs to stack of task swapper/1
  and is located at offset 64 in frame:
  init_new_ldt+0x0/0x960

 This frame has 2 objects:
  [32, 40) 'addr'
  [64, 80) 'desc'
 ==================================================================

Fixes: 858259cf7d ("uml: maintain own LDT entries")
Signed-off-by: Vincent Whitchurch <vincent.whitchurch@axis.com>
Cc: stable@vger.kernel.org
Signed-off-by: Richard Weinberger <richard@nod.at>
2022-05-27 09:03:41 +02:00