Merge 6.3-rc3 into char-misc-next

We need the mainline fixes in this branch for testing and other
subsystem changes to be based properly on.

Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

.gitignore

@@ -78,6 +78,7 @@ modules.order
 # RPM spec file (make rpm-pkg)
 #
 /*.spec
+/rpmbuild/
 
 #
 # Debian directory (make deb-pkg)

.mailmap

@@ -28,6 +28,7 @@ Alexander Lobakin <alobakin@pm.me> <bloodyreaper@yandex.ru>
 Alexander Mikhalitsyn <alexander@mihalicyn.com> <alexander.mikhalitsyn@virtuozzo.com>
 Alexander Mikhalitsyn <alexander@mihalicyn.com> <aleksandr.mikhalitsyn@canonical.com>
 Alexandre Belloni <alexandre.belloni@bootlin.com> <alexandre.belloni@free-electrons.com>
+Alexandre Ghiti <alex@ghiti.fr> <alexandre.ghiti@canonical.com>
 Alexei Starovoitov <ast@kernel.org> <alexei.starovoitov@gmail.com>
 Alexei Starovoitov <ast@kernel.org> <ast@fb.com>
 Alexei Starovoitov <ast@kernel.org> <ast@plumgrid.com>
@@ -121,7 +122,7 @@ Dengcheng Zhu <dzhu@wavecomp.com> <dengcheng.zhu@gmail.com>
 Dengcheng Zhu <dzhu@wavecomp.com> <dengcheng.zhu@imgtec.com>
 Dengcheng Zhu <dzhu@wavecomp.com> <dengcheng.zhu@mips.com>
 <dev.kurt@vandijck-laurijssen.be> <kurt.van.dijck@eia.be>
-Dikshita Agarwal <dikshita@qti.qualcomm.com> <dikshita@codeaurora.org>
+Dikshita Agarwal <quic_dikshita@quicinc.com> <dikshita@codeaurora.org>
 Dmitry Baryshkov <dbaryshkov@gmail.com>
 Dmitry Baryshkov <dbaryshkov@gmail.com> <[dbaryshkov@gmail.com]>
 Dmitry Baryshkov <dbaryshkov@gmail.com> <dmitry_baryshkov@mentor.com>
@@ -136,6 +137,9 @@ Erik Kaneda <erik.kaneda@intel.com> <erik.schmauss@intel.com>
 Eugen Hristev <eugen.hristev@collabora.com> <eugen.hristev@microchip.com>
 Evgeniy Polyakov <johnpol@2ka.mipt.ru>
 Ezequiel Garcia <ezequiel@vanguardiasur.com.ar> <ezequiel@collabora.com>
+Faith Ekstrand <faith.ekstrand@collabora.com> <jason@jlekstrand.net>
+Faith Ekstrand <faith.ekstrand@collabora.com> <jason.ekstrand@intel.com>
+Faith Ekstrand <faith.ekstrand@collabora.com> <jason.ekstrand@collabora.com>
 Felipe W Damasio <felipewd@terra.com.br>
 Felix Kuhling <fxkuehl@gmx.de>
 Felix Moeller <felix@derklecks.de>
@@ -191,6 +195,7 @@ Jan Glauber <jan.glauber@gmail.com> <jang@linux.vnet.ibm.com>
 Jan Glauber <jan.glauber@gmail.com> <jglauber@cavium.com>
 Jarkko Sakkinen <jarkko@kernel.org> <jarkko.sakkinen@linux.intel.com>
 Jarkko Sakkinen <jarkko@kernel.org> <jarkko@profian.com>
+Jarkko Sakkinen <jarkko@kernel.org> <jarkko.sakkinen@tuni.fi>
 Jason Gunthorpe <jgg@ziepe.ca> <jgg@mellanox.com>
 Jason Gunthorpe <jgg@ziepe.ca> <jgg@nvidia.com>
 Jason Gunthorpe <jgg@ziepe.ca> <jgunthorpe@obsidianresearch.com>
@@ -210,6 +215,9 @@ Jens Axboe <axboe@suse.de>
 Jens Osterkamp <Jens.Osterkamp@de.ibm.com>
 Jernej Skrabec <jernej.skrabec@gmail.com> <jernej.skrabec@siol.net>
 Jessica Zhang <quic_jesszhan@quicinc.com> <jesszhan@codeaurora.org>
+Jiri Pirko <jiri@resnulli.us> <jiri@nvidia.com>
+Jiri Pirko <jiri@resnulli.us> <jiri@mellanox.com>
+Jiri Pirko <jiri@resnulli.us> <jpirko@redhat.com>
 Jiri Slaby <jirislaby@kernel.org> <jirislaby@gmail.com>
 Jiri Slaby <jirislaby@kernel.org> <jslaby@novell.com>
 Jiri Slaby <jirislaby@kernel.org> <jslaby@suse.com>
@@ -306,6 +314,8 @@ Mauro Carvalho Chehab <mchehab@kernel.org> <mchehab@osg.samsung.com>
 Mauro Carvalho Chehab <mchehab@kernel.org> <mchehab@redhat.com>
 Mauro Carvalho Chehab <mchehab@kernel.org> <m.chehab@samsung.com>
 Mauro Carvalho Chehab <mchehab@kernel.org> <mchehab@s-opensource.com>
+Maxim Mikityanskiy <maxtram95@gmail.com> <maximmi@mellanox.com>
+Maxim Mikityanskiy <maxtram95@gmail.com> <maximmi@nvidia.com>
 Maxime Ripard <mripard@kernel.org> <maxime.ripard@bootlin.com>
 Maxime Ripard <mripard@kernel.org> <maxime.ripard@free-electrons.com>
 Mayuresh Janorkar <mayur@ti.com>
@@ -411,7 +421,10 @@ Shuah Khan <shuah@kernel.org> <shuah.kh@samsung.com>
 Simon Arlott <simon@octiron.net> <simon@fire.lp0.eu>
 Simon Kelley <simon@thekelleys.org.uk>
 Stéphane Witzmann <stephane.witzmann@ubpmes.univ-bpclermont.fr>
-Stephen Hemminger <shemminger@osdl.org>
+Stephen Hemminger <stephen@networkplumber.org> <shemminger@linux-foundation.org>
+Stephen Hemminger <stephen@networkplumber.org> <shemminger@osdl.org>
+Stephen Hemminger <stephen@networkplumber.org> <sthemmin@microsoft.com>
+Stephen Hemminger <stephen@networkplumber.org> <sthemmin@vyatta.com>
 Steve Wise <larrystevenwise@gmail.com> <swise@chelsio.com>
 Steve Wise <larrystevenwise@gmail.com> <swise@opengridcomputing.com>
 Subash Abhinov Kasiviswanathan <subashab@codeaurora.org>

Documentation/ABI/stable/sysfs-block

@@ -705,6 +705,15 @@ Description:
 		zoned will report "none".
 
 
+What:		/sys/block/<disk>/hidden
+Date:		March 2023
+Contact:	linux-block@vger.kernel.org
+Description:
+		[RO] the block device is hidden. it doesn’t produce events, and
+		can’t be opened from userspace or using blkdev_get*.
+		Used for the underlying components of multipath devices.
+
+
 What:		/sys/block/<disk>/stat
 Date:		February 2008
 Contact:	Jerome Marchand <jmarchan@redhat.com>

Documentation/bpf/bpf_devel_QA.rst

@@ -7,8 +7,8 @@ workflows related to reporting bugs, submitting patches, and queueing
 patches for stable kernels.
 
 For general information about submitting patches, please refer to
-`Documentation/process/`_. This document only describes additional specifics
+Documentation/process/submitting-patches.rst. This document only describes
-related to BPF.
+additional specifics related to BPF.
 
 .. contents::
     :local:
@@ -461,15 +461,15 @@ needed::
 
   $ sudo make run_tests
 
-See the kernels selftest `Documentation/dev-tools/kselftest.rst`_
+See :doc:`kernel selftest documentation </dev-tools/kselftest>`
-document for further documentation.
+for details.
 
 To maximize the number of tests passing, the .config of the kernel
 under test should match the config file fragment in
 tools/testing/selftests/bpf as closely as possible.
 
 Finally to ensure support for latest BPF Type Format features -
-discussed in `Documentation/bpf/btf.rst`_ - pahole version 1.16
+discussed in Documentation/bpf/btf.rst - pahole version 1.16
 is required for kernels built with CONFIG_DEBUG_INFO_BTF=y.
 pahole is delivered in the dwarves package or can be built
 from source at
@@ -684,12 +684,8 @@ when:
 
 
 .. Links
-.. _Documentation/process/: https://www.kernel.org/doc/html/latest/process/
 .. _netdev-FAQ: Documentation/process/maintainer-netdev.rst
 .. _selftests:
    https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/tree/tools/testing/selftests/bpf/
-.. _Documentation/dev-tools/kselftest.rst:
-   https://www.kernel.org/doc/html/latest/dev-tools/kselftest.html
-.. _Documentation/bpf/btf.rst: btf.rst
 
 Happy BPF hacking!

Documentation/driver-api/vfio.rst

@@ -242,7 +242,7 @@ group and can access them as follows::
 VFIO User API
 -------------------------------------------------------------------------------
 
-Please see include/linux/vfio.h for complete API documentation.
+Please see include/uapi/linux/vfio.h for complete API documentation.
 
 VFIO bus driver API
 -------------------------------------------------------------------------------

Documentation/filesystems/ext4/blockgroup.rst

@@ -105,9 +105,9 @@ descriptors. Instead, the superblock and a single block group descriptor
 block is placed at the beginning of the first, second, and last block
 groups in a meta-block group. A meta-block group is a collection of
 block groups which can be described by a single block group descriptor
-block. Since the size of the block group descriptor structure is 32
+block. Since the size of the block group descriptor structure is 64
-bytes, a meta-block group contains 32 block groups for filesystems with
+bytes, a meta-block group contains 16 block groups for filesystems with
-a 1KB block size, and 128 block groups for filesystems with a 4KB
+a 1KB block size, and 64 block groups for filesystems with a 4KB
 blocksize. Filesystems can either be created using this new block group
 descriptor layout, or existing filesystems can be resized on-line, and
 the field s_first_meta_bg in the superblock will indicate the first

Documentation/filesystems/vfs.rst

@@ -1222,7 +1222,7 @@ defined:
 	return
 	-ECHILD and it will be called again in ref-walk mode.
 
-``_weak_revalidate``
+``d_weak_revalidate``
 	called when the VFS needs to revalidate a "jumped" dentry.  This
 	is called when a path-walk ends at dentry that was not acquired
 	by doing a lookup in the parent directory.  This includes "/",

Documentation/firmware-guide/acpi/enumeration.rst

@@ -19,7 +19,7 @@ possible we decided to do following:
     platform devices.
 
   - Devices behind real busses where there is a connector resource
-    are represented as struct spi_device or struct i2c_device. Note
+    are represented as struct spi_device or struct i2c_client. Note
     that standard UARTs are not busses so there is no struct uart_device,
     although some of them may be represented by struct serdev_device.
 

Documentation/maintainer/rebasing-and-merging.rst

@@ -213,11 +213,7 @@ point rather than some random spot.  If your upstream-bound branch has
 emptied entirely into the mainline during the merge window, you can pull it
 forward with a command like::
 
-  git merge v5.2-rc1^0
+  git merge --ff-only v5.2-rc1
-
-The "^0" will cause Git to do a fast-forward merge (which should be
-possible in this situation), thus avoiding the addition of a spurious merge
-commit.
 
 The guidelines laid out above are just that: guidelines.  There will always
 be situations that call out for a different solution, and these guidelines

Documentation/mm/hugetlbfs_reserv.rst

@@ -5,10 +5,10 @@ Hugetlbfs Reservation
 Overview
 ========
 
-Huge pages as described at Documentation/mm/hugetlbpage.rst are typically
+Huge pages as described at Documentation/admin-guide/mm/hugetlbpage.rst are
-preallocated for application use.  These huge pages are instantiated in a
+typically preallocated for application use.  These huge pages are instantiated
-task's address space at page fault time if the VMA indicates huge pages are
+in a task's address space at page fault time if the VMA indicates huge pages
-to be used.  If no huge page exists at page fault time, the task is sent
+are to be used.  If no huge page exists at page fault time, the task is sent
 a SIGBUS and often dies an unhappy death.  Shortly after huge page support
 was added, it was determined that it would be better to detect a shortage
 of huge pages at mmap() time.  The idea is that if there were not enough

Documentation/mm/physical_memory.rst

@@ -66,7 +66,7 @@ one of the types described below.
   also populated on boot using one of ``kernelcore``, ``movablecore`` and
   ``movable_node`` kernel command line parameters. See
   Documentation/mm/page_migration.rst and
-  Documentation/admin-guide/mm/memory_hotplug.rst for additional details.
+  Documentation/admin-guide/mm/memory-hotplug.rst for additional details.
 
 * ``ZONE_DEVICE`` represents memory residing on devices such as PMEM and GPU.
   It has different characteristics than RAM zone types and it exists to provide

Documentation/netlink/genetlink-c.yaml

@@ -1,4 +1,4 @@
-# SPDX-License-Identifier: GPL-2.0
+# SPDX-License-Identifier: ((GPL-2.0 WITH Linux-syscall-note) OR BSD-3-Clause)
 %YAML 1.2
 ---
 $id: http://kernel.org/schemas/netlink/genetlink-c.yaml#

Documentation/netlink/genetlink-legacy.yaml

@@ -1,4 +1,4 @@
-# SPDX-License-Identifier: GPL-2.0
+# SPDX-License-Identifier: ((GPL-2.0 WITH Linux-syscall-note) OR BSD-3-Clause)
 %YAML 1.2
 ---
 $id: http://kernel.org/schemas/netlink/genetlink-legacy.yaml#

Documentation/netlink/genetlink.yaml

@@ -1,4 +1,4 @@
-# SPDX-License-Identifier: GPL-2.0
+# SPDX-License-Identifier: ((GPL-2.0 WITH Linux-syscall-note) OR BSD-3-Clause)
 %YAML 1.2
 ---
 $id: http://kernel.org/schemas/netlink/genetlink-legacy.yaml#

Documentation/netlink/specs/ethtool.yaml

@@ -1,3 +1,5 @@
+# SPDX-License-Identifier: ((GPL-2.0 WITH Linux-syscall-note) OR BSD-3-Clause)
+
 name: ethtool
 
 protocol: genetlink-legacy
@@ -11,7 +13,6 @@ attribute-sets:
       -
         name: dev-index
         type: u32
-        value: 1
       -
         name: dev-name
         type: string
@@ -25,7 +26,6 @@ attribute-sets:
       -
         name: index
         type: u32
-        value: 1
       -
         name: name
         type: string
@@ -39,14 +39,12 @@ attribute-sets:
         name: bit
         type: nest
         nested-attributes: bitset-bit
-        value: 1
   -
     name: bitset
     attributes:
       -
         name: nomask
         type: flag
-        value: 1
       -
         name: size
         type: u32
@@ -61,7 +59,6 @@ attribute-sets:
       -
         name: index
         type: u32
-        value: 1
       -
         name: value
         type: string
@@ -71,7 +68,6 @@ attribute-sets:
       -
         name: string
         type: nest
-        value: 1
         multi-attr: true
         nested-attributes: string
   -
@@ -80,7 +76,6 @@ attribute-sets:
       -
         name: id
         type: u32
-        value: 1
       -
         name: count
         type: u32
@@ -96,14 +91,12 @@ attribute-sets:
         name: stringset
         type: nest
         multi-attr: true
-        value: 1
         nested-attributes: stringset
   -
     name: strset
     attributes:
       -
         name: header
-        value: 1
         type: nest
         nested-attributes: header
       -
@@ -119,7 +112,6 @@ attribute-sets:
     attributes:
       -
         name: header
-        value: 1
         type: nest
         nested-attributes: header
       -
@@ -132,7 +124,6 @@ attribute-sets:
     attributes:
       -
         name: header
-        value: 1
         type: nest
         nested-attributes: header
       -
@@ -180,7 +171,6 @@ attribute-sets:
     attributes:
       -
         name: pad
-        value: 1
         type: pad
       -
         name: reassembly-errors
@@ -205,7 +195,6 @@ attribute-sets:
     attributes:
       -
         name: header
-        value: 1
         type: nest
         nested-attributes: header
       -
@@ -251,13 +240,11 @@ operations:
 
       do: &strset-get-op
         request:
-          value: 1
           attributes:
             - header
             - stringsets
             - counts-only
         reply:
-          value: 1
           attributes:
             - header
             - stringsets

Documentation/netlink/specs/fou.yaml

@@ -1,3 +1,5 @@
+# SPDX-License-Identifier: ((GPL-2.0 WITH Linux-syscall-note) OR BSD-3-Clause)
+
 name: fou
 
 protocol: genetlink-legacy
@@ -26,6 +28,7 @@ attribute-sets:
       -
         name: unspec
         type: unused
+        value: 0
       -
         name: port
         type: u16
@@ -71,6 +74,7 @@ operations:
     -
       name: unspec
       doc: unused
+      value: 0
 
     -
       name: add

Documentation/netlink/specs/netdev.yaml

@@ -1,3 +1,5 @@
+# SPDX-License-Identifier: ((GPL-2.0 WITH Linux-syscall-note) OR BSD-3-Clause)
+
 name: netdev
 
 doc:
@@ -7,6 +9,7 @@ definitions:
   -
     type: flags
     name: xdp-act
+    render-max: true
     entries:
       -
         name: basic
@@ -48,7 +51,6 @@ attribute-sets:
         name: ifindex
         doc: netdev ifindex
         type: u32
-        value: 1
         checks:
           min: 1
       -
@@ -66,7 +68,6 @@ operations:
     -
       name: dev-get
       doc: Get / dump information about a netdev.
-      value: 1
       attribute-set: dev
       do:
         request:

Documentation/process/programming-language.rst

@@ -12,10 +12,6 @@ under ``-std=gnu11`` [gcc-c-dialect-options]_: the GNU dialect of ISO C11.
 This dialect contains many extensions to the language [gnu-extensions]_,
 and many of them are used within the kernel as a matter of course.
 
-There is some support for compiling the kernel with ``icc`` [icc]_ for several
-of the architectures, although at the time of writing it is not completed,
-requiring third-party patches.
-
 Attributes
 ----------
 
@@ -35,12 +31,28 @@ in order to feature detect which ones can be used and/or to shorten the code.
 
 Please refer to ``include/linux/compiler_attributes.h`` for more information.
 
+Rust
+----
+
+The kernel has experimental support for the Rust programming language
+[rust-language]_ under ``CONFIG_RUST``. It is compiled with ``rustc`` [rustc]_
+under ``--edition=2021`` [rust-editions]_. Editions are a way to introduce
+small changes to the language that are not backwards compatible.
+
+On top of that, some unstable features [rust-unstable-features]_ are used in
+the kernel. Unstable features may change in the future, thus it is an important
+goal to reach a point where only stable features are used.
+
+Please refer to Documentation/rust/index.rst for more information.
+
 .. [c-language] http://www.open-std.org/jtc1/sc22/wg14/www/standards
 .. [gcc] https://gcc.gnu.org
 .. [clang] https://clang.llvm.org
-.. [icc] https://software.intel.com/en-us/c-compilers
 .. [gcc-c-dialect-options] https://gcc.gnu.org/onlinedocs/gcc/C-Dialect-Options.html
 .. [gnu-extensions] https://gcc.gnu.org/onlinedocs/gcc/C-Extensions.html
 .. [gcc-attribute-syntax] https://gcc.gnu.org/onlinedocs/gcc/Attribute-Syntax.html
 .. [n2049] http://www.open-std.org/jtc1/sc22/wg14/www/docs/n2049.pdf
-
+.. [rust-language] https://www.rust-lang.org
+.. [rustc] https://doc.rust-lang.org/rustc/
+.. [rust-editions] https://doc.rust-lang.org/edition-guide/editions/
+.. [rust-unstable-features] https://github.com/Rust-for-Linux/linux/issues/2

Documentation/process/submitting-patches.rst

@@ -320,7 +320,7 @@ for their time.  Code review is a tiring and time-consuming process, and
 reviewers sometimes get grumpy.  Even in that case, though, respond
 politely and address the problems they have pointed out.  When sending a next
 version, add a ``patch changelog`` to the cover letter or to individual patches
-explaining difference aganst previous submission (see
+explaining difference against previous submission (see
 :ref:`the_canonical_patch_format`).
 
 See Documentation/process/email-clients.rst for recommendations on email

Documentation/scheduler/sched-capacity.rst

@@ -258,7 +258,7 @@ Linux cannot currently figure out CPU capacity on its own, this information thus
 needs to be handed to it. Architectures must define arch_scale_cpu_capacity()
 for that purpose.
 
-The arm and arm64 architectures directly map this to the arch_topology driver
+The arm, arm64, and RISC-V architectures directly map this to the arch_topology driver
 CPU scaling data, which is derived from the capacity-dmips-mhz CPU binding; see
 Documentation/devicetree/bindings/cpu/cpu-capacity.txt.
 

Documentation/translations/zh_CN/mm/hugetlbfs_reserv.rst

@@ -15,7 +15,8 @@ Hugetlbfs 预留
 概述
 ====
 
-Documentation/mm/hugetlbpage.rst 中描述的巨页通常是预先分配给应用程序使用的。如果VMA指
+Documentation/admin-guide/mm/hugetlbpage.rst
+中描述的巨页通常是预先分配给应用程序使用的 。如果VMA指
 示要使用巨页，这些巨页会在缺页异常时被实例化到任务的地址空间。如果在缺页异常
 时没有巨页存在，任务就会被发送一个SIGBUS，并经常不高兴地死去。在加入巨页支
 持后不久，人们决定，在mmap()时检测巨页的短缺情况会更好。这个想法是，如果

Documentation/translations/zh_CN/scheduler/sched-capacity.rst

@@ -231,7 +231,7 @@ CFS调度类基于实体负载跟踪机制（Per-Entity Load Tracking, PELT）
 当前，Linux无法凭自身算出CPU算力，因此必须要有把这个信息传递给Linux的方式。每个架构必须为此
 定义arch_scale_cpu_capacity()函数。
 
-arm和arm64架构直接把这个信息映射到arch_topology驱动的CPU scaling数据中（译注：参考
+arm、arm64和RISC-V架构直接把这个信息映射到arch_topology驱动的CPU scaling数据中（译注：参考
 arch_topology.h的percpu变量cpu_scale），它是从capacity-dmips-mhz CPU binding中衍生计算
 出来的。参见Documentation/devicetree/bindings/cpu/cpu-capacity.txt。
 

Documentation/userspace-api/netlink/specs.rst

@@ -24,6 +24,10 @@ YAML specifications can be found under ``Documentation/netlink/specs/``
 This document describes details of the schema.
 See :doc:`intro-specs` for a practical starting guide.
 
+All specs must be licensed under
+``((GPL-2.0 WITH Linux-syscall-note) OR BSD-3-Clause)``
+to allow for easy adoption in user space code.
+
 Compatibility levels
 ====================
 
@@ -197,9 +201,15 @@ value
 Numerical attribute ID, used in serialized Netlink messages.
 The ``value`` property can be skipped, in which case the attribute ID
 will be the value of the previous attribute plus one (recursively)
-and ``0`` for the first attribute in the attribute set.
+and ``1`` for the first attribute in the attribute set.
 
-Note that the ``value`` of an attribute is defined only in its main set.
+Attributes (and operations) use ``1`` as the default value for the first
+entry (unlike enums in definitions which start from ``0``) because
+entry ``0`` is almost always reserved as undefined. Spec can explicitly
+set value to ``0`` if needed.
+
+Note that the ``value`` of an attribute is defined only in its main set
+(not in subsets).
 
 enum
 ~~~~

MAINTAINERS

@@ -5971,7 +5971,7 @@ F:	include/linux/dm-*.h
 F:	include/uapi/linux/dm-*.h
 
 DEVLINK
-M:	Jiri Pirko <jiri@nvidia.com>
+M:	Jiri Pirko <jiri@resnulli.us>
 L:	netdev@vger.kernel.org
 S:	Supported
 F:	Documentation/networking/devlink
@@ -9871,10 +9871,10 @@ M:	Christian Brauner <brauner@kernel.org>
 M:	Seth Forshee <sforshee@kernel.org>
 L:	linux-fsdevel@vger.kernel.org
 S:	Maintained
-T:	git://git.kernel.org/pub/scm/linux/kernel/git/vfs/idmapping.git
+T:	git git://git.kernel.org/pub/scm/linux/kernel/git/vfs/idmapping.git
 F:	Documentation/filesystems/idmappings.rst
-F:	tools/testing/selftests/mount_setattr/
 F:	include/linux/mnt_idmapping.*
+F:	tools/testing/selftests/mount_setattr/
 
 IDT VersaClock 5 CLOCK DRIVER
 M:	Luca Ceresoli <luca@lucaceresoli.net>
@@ -14872,12 +14872,12 @@ M:	Sagi Grimberg <sagi@grimberg.me>
 L:	linux-nvme@lists.infradead.org
 S:	Supported
 W:	http://git.infradead.org/nvme.git
-T:	git://git.infradead.org/nvme.git
+T:	git git://git.infradead.org/nvme.git
 F:	Documentation/nvme/
-F:	drivers/nvme/host/
 F:	drivers/nvme/common/
-F:	include/linux/nvme.h
+F:	drivers/nvme/host/
 F:	include/linux/nvme-*.h
+F:	include/linux/nvme.h
 F:	include/uapi/linux/nvme_ioctl.h
 
 NVM EXPRESS FABRICS AUTHENTICATION
@@ -14912,7 +14912,7 @@ M:	Chaitanya Kulkarni <kch@nvidia.com>
 L:	linux-nvme@lists.infradead.org
 S:	Supported
 W:	http://git.infradead.org/nvme.git
-T:	git://git.infradead.org/nvme.git
+T:	git git://git.infradead.org/nvme.git
 F:	drivers/nvme/target/
 
 NVMEM FRAMEWORK
@@ -15079,7 +15079,7 @@ F:	Documentation/hwmon/nzxt-smart2.rst
 F:	drivers/hwmon/nzxt-smart2.c
 
 OBJAGG
-M:	Jiri Pirko <jiri@nvidia.com>
+M:	Jiri Pirko <jiri@resnulli.us>
 L:	netdev@vger.kernel.org
 S:	Supported
 F:	include/linux/objagg.h
@@ -15841,7 +15841,7 @@ F:	drivers/video/logo/logo_parisc*
 F:	include/linux/hp_sdc.h
 
 PARMAN
-M:	Jiri Pirko <jiri@nvidia.com>
+M:	Jiri Pirko <jiri@resnulli.us>
 L:	netdev@vger.kernel.org
 S:	Supported
 F:	include/linux/parman.h
@@ -16379,6 +16379,7 @@ R:	Alexander Shishkin <alexander.shishkin@linux.intel.com>
 R:	Jiri Olsa <jolsa@kernel.org>
 R:	Namhyung Kim <namhyung@kernel.org>
 R:	Ian Rogers <irogers@google.com>
+R:	Adrian Hunter <adrian.hunter@intel.com>
 L:	linux-perf-users@vger.kernel.org
 L:	linux-kernel@vger.kernel.org
 S:	Supported
@@ -17977,7 +17978,7 @@ F:	Documentation/devicetree/bindings/spi/microchip,mpfs-spi.yaml
 F:	Documentation/devicetree/bindings/usb/microchip,mpfs-musb.yaml
 F:	arch/riscv/boot/dts/microchip/
 F:	drivers/char/hw_random/mpfs-rng.c
-F:	drivers/clk/microchip/clk-mpfs.c
+F:	drivers/clk/microchip/clk-mpfs*.c
 F:	drivers/i2c/busses/i2c-microchip-corei2c.c
 F:	drivers/mailbox/mailbox-mpfs.c
 F:	drivers/pci/controller/pcie-microchip-host.c
@@ -19132,9 +19133,7 @@ W:	http://www.brownhat.org/sis900.html
 F:	drivers/net/ethernet/sis/sis900.*
 
 SIS FRAMEBUFFER DRIVER
-M:	Thomas Winischhofer <thomas@winischhofer.net>
+S:	Orphan
-S:	Maintained
-W:	http://www.winischhofer.net/linuxsisvga.shtml
 F:	Documentation/fb/sisfb.rst
 F:	drivers/video/fbdev/sis/
 F:	include/video/sisfb.h
@@ -19846,13 +19845,6 @@ S:	Maintained
 W:	http://wiki.laptop.org/go/DCON
 F:	drivers/staging/olpc_dcon/
 
-STAGING - REALTEK RTL8188EU DRIVERS
-M:	Larry Finger <Larry.Finger@lwfinger.net>
-M:	Phillip Potter <phil@philpotter.co.uk>
-R:	Pavel Skripkin <paskripkin@gmail.com>
-S:	Supported
-F:	drivers/staging/r8188eu/
-
 STAGING - REALTEK RTL8712U DRIVERS
 M:	Larry Finger <Larry.Finger@lwfinger.net>
 M:	Florian Schilhabel <florian.c.schilhabel@googlemail.com>.

Makefile

@@ -2,7 +2,7 @@
 VERSION = 6
 PATCHLEVEL = 3
 SUBLEVEL = 0
-EXTRAVERSION = -rc1
+EXTRAVERSION = -rc3
 NAME = Hurr durr I'ma ninja sloth
 
 # *DOCUMENTATION*
@@ -274,8 +274,7 @@ no-dot-config-targets := $(clean-targets) \
 			 cscope gtags TAGS tags help% %docs check% coccicheck \
 			 $(version_h) headers headers_% archheaders archscripts \
 			 %asm-generic kernelversion %src-pkg dt_binding_check \
-			 outputmakefile rustavailable rustfmt rustfmtcheck \
+			 outputmakefile rustavailable rustfmt rustfmtcheck
-			 scripts_package
 # Installation targets should not require compiler. Unfortunately, vdso_install
 # is an exception where build artifacts may be updated. This must be fixed.
 no-compiler-targets := $(no-dot-config-targets) install dtbs_install \
@@ -1605,7 +1604,7 @@ MRPROPER_FILES += include/config include/generated          \
 		  certs/signing_key.pem \
 		  certs/x509.genkey \
 		  vmlinux-gdb.py \
-		  *.spec \
+		  *.spec rpmbuild \
 		  rust/libmacros.so
 
 # clean - Delete most, but leave enough to build external modules
@@ -1656,10 +1655,6 @@ distclean: mrproper
 %pkg: include/config/kernel.release FORCE
 	$(Q)$(MAKE) -f $(srctree)/scripts/Makefile.package $@
 
-PHONY += scripts_package
-scripts_package: scripts_basic
-	$(Q)$(MAKE) $(build)=scripts scripts/list-gitignored
-
 # Brief documentation of the typical targets used
 # ---------------------------------------------------------------------------
 
@@ -1886,6 +1881,8 @@ endif
 
 else # KBUILD_EXTMOD
 
+filechk_kernel.release = echo $(KERNELRELEASE)
+
 ###
 # External module support.
 # When building external modules the kernel used as basis is considered

arch/alpha/lib/fpreg.c

@@ -23,7 +23,7 @@ alpha_read_fp_reg (unsigned long reg)
 
 	if (unlikely(reg >= 32))
 		return 0;
-	preempt_enable();
+	preempt_disable();
 	if (current_thread_info()->status & TS_SAVED_FP)
 		val = current_thread_info()->fp[reg];
 	else switch (reg) {
@@ -133,7 +133,7 @@ alpha_read_fp_reg_s (unsigned long reg)
 	if (unlikely(reg >= 32))
 		return 0;
 
-	preempt_enable();
+	preempt_disable();
 	if (current_thread_info()->status & TS_SAVED_FP) {
 		LDT(0, current_thread_info()->fp[reg]);
 		STS(0, val);

arch/arm64/include/asm/kvm_host.h

@@ -193,6 +193,9 @@ struct kvm_arch {
 	/* Interrupt controller */
 	struct vgic_dist	vgic;
 
+	/* Timers */
+	struct arch_timer_vm_data timer_data;
+
 	/* Mandated version of PSCI */
 	u32 psci_version;
 

arch/arm64/kvm/arch_timer.c

@@ -84,15 +84,11 @@ u64 timer_get_cval(struct arch_timer_context *ctxt)
 
 static u64 timer_get_offset(struct arch_timer_context *ctxt)
 {
-	struct kvm_vcpu *vcpu = ctxt->vcpu;
+	if (ctxt->offset.vm_offset)
+		return *ctxt->offset.vm_offset;
 
-	switch(arch_timer_ctx_index(ctxt)) {
-	case TIMER_VTIMER:
-		return __vcpu_sys_reg(vcpu, CNTVOFF_EL2);
-	default:
 	return 0;
 }
-}
 
 static void timer_set_ctl(struct arch_timer_context *ctxt, u32 ctl)
 {
@@ -128,15 +124,12 @@ static void timer_set_cval(struct arch_timer_context *ctxt, u64 cval)
 
 static void timer_set_offset(struct arch_timer_context *ctxt, u64 offset)
 {
-	struct kvm_vcpu *vcpu = ctxt->vcpu;
+	if (!ctxt->offset.vm_offset) {
-
-	switch(arch_timer_ctx_index(ctxt)) {
-	case TIMER_VTIMER:
-		__vcpu_sys_reg(vcpu, CNTVOFF_EL2) = offset;
-		break;
-	default:
 		WARN(offset, "timer %ld\n", arch_timer_ctx_index(ctxt));
+		return;
 	}
+
+	WRITE_ONCE(*ctxt->offset.vm_offset, offset);
 }
 
 u64 kvm_phys_timer_read(void)
@@ -765,25 +758,6 @@ int kvm_timer_vcpu_reset(struct kvm_vcpu *vcpu)
 	return 0;
 }
 
-/* Make the updates of cntvoff for all vtimer contexts atomic */
-static void update_vtimer_cntvoff(struct kvm_vcpu *vcpu, u64 cntvoff)
-{
-	unsigned long i;
-	struct kvm *kvm = vcpu->kvm;
-	struct kvm_vcpu *tmp;
-
-	mutex_lock(&kvm->lock);
-	kvm_for_each_vcpu(i, tmp, kvm)
-		timer_set_offset(vcpu_vtimer(tmp), cntvoff);
-
-	/*
-	 * When called from the vcpu create path, the CPU being created is not
-	 * included in the loop above, so we just set it here as well.
-	 */
-	timer_set_offset(vcpu_vtimer(vcpu), cntvoff);
-	mutex_unlock(&kvm->lock);
-}
-
 void kvm_timer_vcpu_init(struct kvm_vcpu *vcpu)
 {
 	struct arch_timer_cpu *timer = vcpu_timer(vcpu);
@@ -791,10 +765,11 @@ void kvm_timer_vcpu_init(struct kvm_vcpu *vcpu)
 	struct arch_timer_context *ptimer = vcpu_ptimer(vcpu);
 
 	vtimer->vcpu = vcpu;
+	vtimer->offset.vm_offset = &vcpu->kvm->arch.timer_data.voffset;
 	ptimer->vcpu = vcpu;
 
 	/* Synchronize cntvoff across all vtimers of a VM. */
-	update_vtimer_cntvoff(vcpu, kvm_phys_timer_read());
+	timer_set_offset(vtimer, kvm_phys_timer_read());
 	timer_set_offset(ptimer, 0);
 
 	hrtimer_init(&timer->bg_timer, CLOCK_MONOTONIC, HRTIMER_MODE_ABS_HARD);
@@ -840,7 +815,7 @@ int kvm_arm_timer_set_reg(struct kvm_vcpu *vcpu, u64 regid, u64 value)
 		break;
 	case KVM_REG_ARM_TIMER_CNT:
 		timer = vcpu_vtimer(vcpu);
-		update_vtimer_cntvoff(vcpu, kvm_phys_timer_read() - value);
+		timer_set_offset(timer, kvm_phys_timer_read() - value);
 		break;
 	case KVM_REG_ARM_TIMER_CVAL:
 		timer = vcpu_vtimer(vcpu);

arch/arm64/kvm/hypercalls.c

@@ -44,7 +44,7 @@ static void kvm_ptp_get_time(struct kvm_vcpu *vcpu, u64 *val)
 	feature = smccc_get_arg1(vcpu);
 	switch (feature) {
 	case KVM_PTP_VIRT_COUNTER:
-		cycles = systime_snapshot.cycles - vcpu_read_sys_reg(vcpu, CNTVOFF_EL2);
+		cycles = systime_snapshot.cycles - vcpu->kvm->arch.timer_data.voffset;
 		break;
 	case KVM_PTP_PHYS_COUNTER:
 		cycles = systime_snapshot.cycles;

arch/m68k/kernel/setup_mm.c

@@ -326,16 +326,16 @@ void __init setup_arch(char **cmdline_p)
 		panic("No configuration setup");
 	}
 
-#ifdef CONFIG_BLK_DEV_INITRD
+	if (IS_ENABLED(CONFIG_BLK_DEV_INITRD) && m68k_ramdisk.size)
-	if (m68k_ramdisk.size) {
 		memblock_reserve(m68k_ramdisk.addr, m68k_ramdisk.size);
+
+	paging_init();
+
+	if (IS_ENABLED(CONFIG_BLK_DEV_INITRD) && m68k_ramdisk.size) {
 		initrd_start = (unsigned long)phys_to_virt(m68k_ramdisk.addr);
 		initrd_end = initrd_start + m68k_ramdisk.size;
 		pr_info("initrd: %08lx - %08lx\n", initrd_start, initrd_end);
 	}
-#endif
-
-	paging_init();
 
 #ifdef CONFIG_NATFEAT
 	nf_init();

arch/m68k/kernel/traps.c

@@ -30,6 +30,7 @@
 #include <linux/init.h>
 #include <linux/ptrace.h>
 #include <linux/kallsyms.h>
+#include <linux/extable.h>
 
 #include <asm/setup.h>
 #include <asm/fpu.h>
@@ -545,7 +546,8 @@ static inline void bus_error030 (struct frame *fp)
 			errorcode |= 2;
 
 		if (mmusr & (MMU_I | MMU_WP)) {
-			if (ssw & 4) {
+			/* We might have an exception table for this PC */
+			if (ssw & 4 && !search_exception_tables(fp->ptregs.pc)) {
 				pr_err("Data %s fault at %#010lx in %s (pc=%#lx)\n",
 				       ssw & RW ? "read" : "write",
 				       fp->un.fmtb.daddr,

arch/m68k/mm/motorola.c

@@ -437,7 +437,7 @@ void __init paging_init(void)
 	}
 
 	min_addr = m68k_memory[0].addr;
-	max_addr = min_addr + m68k_memory[0].size;
+	max_addr = min_addr + m68k_memory[0].size - 1;
 	memblock_add_node(m68k_memory[0].addr, m68k_memory[0].size, 0,
 			  MEMBLOCK_NONE);
 	for (i = 1; i < m68k_num_memory;) {
@@ -452,21 +452,21 @@ void __init paging_init(void)
 		}
 		memblock_add_node(m68k_memory[i].addr, m68k_memory[i].size, i,
 				  MEMBLOCK_NONE);
-		addr = m68k_memory[i].addr + m68k_memory[i].size;
+		addr = m68k_memory[i].addr + m68k_memory[i].size - 1;
 		if (addr > max_addr)
 			max_addr = addr;
 		i++;
 	}
 	m68k_memoffset = min_addr - PAGE_OFFSET;
-	m68k_virt_to_node_shift = fls(max_addr - min_addr - 1) - 6;
+	m68k_virt_to_node_shift = fls(max_addr - min_addr) - 6;
 
 	module_fixup(NULL, __start_fixup, __stop_fixup);
 	flush_icache();
 
-	high_memory = phys_to_virt(max_addr);
+	high_memory = phys_to_virt(max_addr) + 1;
 
 	min_low_pfn = availmem >> PAGE_SHIFT;
-	max_pfn = max_low_pfn = max_addr >> PAGE_SHIFT;
+	max_pfn = max_low_pfn = (max_addr >> PAGE_SHIFT) + 1;
 
 	/* Reserve kernel text/data/bss and the memory allocated in head.S */
 	memblock_reserve(m68k_memory[0].addr, availmem - m68k_memory[0].addr);

arch/mips/configs/mtx1_defconfig

@@ -284,6 +284,7 @@ CONFIG_IXGB=m
 CONFIG_SKGE=m
 CONFIG_SKY2=m
 CONFIG_MYRI10GE=m
+CONFIG_FEALNX=m
 CONFIG_NATSEMI=m
 CONFIG_NS83820=m
 CONFIG_S2IO=m

arch/powerpc/boot/dts/fsl/t1040rdb-rev-a.dts

@@ -10,7 +10,6 @@
 
 / {
 	model = "fsl,T1040RDB-REV-A";
-	compatible = "fsl,T1040RDB-REV-A";
 };
 
 &seville_port0 {

arch/powerpc/boot/dts/fsl/t1040rdb.dts

@@ -180,6 +180,9 @@ &seville_port7 {
 };
 
 &seville_port8 {
-	ethernet = <&enet0>;
+	status = "okay";
+};
+
+&seville_port9 {
 	status = "okay";
 };

arch/powerpc/boot/dts/fsl/t1040si-post.dtsi

@@ -686,6 +686,7 @@ seville_port7: port@7 {
 			seville_port8: port@8 {
 				reg = <8>;
 				phy-mode = "internal";
+				ethernet = <&enet0>;
 				status = "disabled";
 
 				fixed-link {
@@ -697,6 +698,7 @@ fixed-link {
 			seville_port9: port@9 {
 				reg = <9>;
 				phy-mode = "internal";
+				ethernet = <&enet1>;
 				status = "disabled";
 
 				fixed-link {

arch/powerpc/configs/ppc6xx_defconfig

@@ -461,6 +461,7 @@ CONFIG_MV643XX_ETH=m
 CONFIG_SKGE=m
 CONFIG_SKY2=m
 CONFIG_MYRI10GE=m
+CONFIG_FEALNX=m
 CONFIG_NATSEMI=m
 CONFIG_NS83820=m
 CONFIG_PCMCIA_AXNET=m

arch/powerpc/mm/fault.c

@@ -271,11 +271,16 @@ static bool access_error(bool is_write, bool is_exec, struct vm_area_struct *vma
 	}
 
 	/*
-	 * Check for a read fault.  This could be caused by a read on an
+	 * VM_READ, VM_WRITE and VM_EXEC all imply read permissions, as
-	 * inaccessible page (i.e. PROT_NONE), or a Radix MMU execute-only page.
+	 * defined in protection_map[].  Read faults can only be caused by
+	 * a PROT_NONE mapping, or with a PROT_EXEC-only mapping on Radix.
 	 */
-	if (unlikely(!(vma->vm_flags & VM_READ)))
+	if (unlikely(!vma_is_accessible(vma)))
 		return true;
+
+	if (unlikely(radix_enabled() && ((vma->vm_flags & VM_ACCESS_FLAGS) == VM_EXEC)))
+		return true;
+
 	/*
 	 * We should ideally do the vma pkey access check here. But in the
 	 * fault path, handle_mm_fault() also does the same check. To avoid

arch/powerpc/platforms/pseries/Kconfig

@@ -7,6 +7,7 @@ config PPC_PSERIES
 	select OF_DYNAMIC
 	select FORCE_PCI
 	select PCI_MSI
+	select GENERIC_ALLOCATOR
 	select PPC_XICS
 	select PPC_XIVE_SPAPR
 	select PPC_ICP_NATIVE

arch/powerpc/xmon/xmon.c

@@ -1275,7 +1275,7 @@ static int xmon_batch_next_cpu(void)
 	while (!cpumask_empty(&xmon_batch_cpus)) {
 		cpu = cpumask_next_wrap(smp_processor_id(), &xmon_batch_cpus,
 					xmon_batch_start_cpu, true);
-		if (cpu == nr_cpumask_bits)
+		if (cpu >= nr_cpu_ids)
 			break;
 		if (xmon_batch_start_cpu == -1)
 			xmon_batch_start_cpu = cpu;

arch/riscv/Makefile

@@ -84,6 +84,13 @@ endif
 # Avoid generating .eh_frame sections.
 KBUILD_CFLAGS += -fno-asynchronous-unwind-tables -fno-unwind-tables
 
+# The RISC-V attributes frequently cause compatibility issues and provide no
+# information, so just turn them off.
+KBUILD_CFLAGS += $(call cc-option,-mno-riscv-attribute)
+KBUILD_AFLAGS += $(call cc-option,-mno-riscv-attribute)
+KBUILD_CFLAGS += $(call as-option,-Wa$(comma)-mno-arch-attr)
+KBUILD_AFLAGS += $(call as-option,-Wa$(comma)-mno-arch-attr)
+
 KBUILD_CFLAGS_MODULE += $(call cc-option,-mno-relax)
 KBUILD_AFLAGS_MODULE += $(call as-option,-Wa$(comma)-mno-relax)
 

arch/riscv/errata/sifive/errata.c

@@ -111,7 +111,7 @@ void __init_or_module sifive_errata_patch_func(struct alt_entry *begin,
 			mutex_lock(&text_mutex);
 			patch_text_nosync(ALT_OLD_PTR(alt), ALT_ALT_PTR(alt),
 					  alt->alt_len);
-			mutex_lock(&text_mutex);
+			mutex_unlock(&text_mutex);
 			cpu_apply_errata |= tmp;
 		}
 	}

arch/riscv/include/asm/ftrace.h

@@ -109,6 +109,6 @@ int ftrace_init_nop(struct module *mod, struct dyn_ftrace *rec);
 #define ftrace_init_nop ftrace_init_nop
 #endif
 
-#endif
+#endif /* CONFIG_DYNAMIC_FTRACE */
 
 #endif /* _ASM_RISCV_FTRACE_H */

arch/riscv/include/asm/mmu.h

@@ -19,8 +19,6 @@ typedef struct {
 #ifdef CONFIG_SMP
 	/* A local icache flush is needed before user execution can resume. */
 	cpumask_t icache_stale_mask;
-	/* A local tlb flush is needed before user execution can resume. */
-	cpumask_t tlb_stale_mask;
 #endif
 } mm_context_t;
 

arch/riscv/include/asm/patch.h

@@ -9,4 +9,6 @@
 int patch_text_nosync(void *addr, const void *insns, size_t len);
 int patch_text(void *addr, u32 *insns, int ninsns);
 
+extern int riscv_patch_in_stop_machine;
+
 #endif /* _ASM_RISCV_PATCH_H */

arch/riscv/include/asm/tlbflush.h

@@ -22,24 +22,6 @@ static inline void local_flush_tlb_page(unsigned long addr)
 {
 	ALT_FLUSH_TLB_PAGE(__asm__ __volatile__ ("sfence.vma %0" : : "r" (addr) : "memory"));
 }
-
-static inline void local_flush_tlb_all_asid(unsigned long asid)
-{
-	__asm__ __volatile__ ("sfence.vma x0, %0"
-			:
-			: "r" (asid)
-			: "memory");
-}
-
-static inline void local_flush_tlb_page_asid(unsigned long addr,
-		unsigned long asid)
-{
-	__asm__ __volatile__ ("sfence.vma %0, %1"
-			:
-			: "r" (addr), "r" (asid)
-			: "memory");
-}
-
 #else /* CONFIG_MMU */
 #define local_flush_tlb_all()			do { } while (0)
 #define local_flush_tlb_page(addr)		do { } while (0)

arch/riscv/kernel/compat_vdso/Makefile

@@ -14,6 +14,10 @@ COMPAT_LD := $(LD)
 COMPAT_CC_FLAGS := -march=rv32g -mabi=ilp32
 COMPAT_LD_FLAGS := -melf32lriscv
 
+# Disable attributes, as they're useless and break the build.
+COMPAT_CC_FLAGS += $(call cc-option,-mno-riscv-attribute)
+COMPAT_CC_FLAGS += $(call as-option,-Wa$(comma)-mno-arch-attr)
+
 # Files to link into the compat_vdso
 obj-compat_vdso = $(patsubst %, %.o, $(compat_vdso-syms)) note.o
 

arch/riscv/kernel/ftrace.c

@@ -15,10 +15,19 @@
 void ftrace_arch_code_modify_prepare(void) __acquires(&text_mutex)
 {
 	mutex_lock(&text_mutex);
+
+	/*
+	 * The code sequences we use for ftrace can't be patched while the
+	 * kernel is running, so we need to use stop_machine() to modify them
+	 * for now.  This doesn't play nice with text_mutex, we use this flag
+	 * to elide the check.
+	 */
+	riscv_patch_in_stop_machine = true;
 }
 
 void ftrace_arch_code_modify_post_process(void) __releases(&text_mutex)
 {
+	riscv_patch_in_stop_machine = false;
 	mutex_unlock(&text_mutex);
 }
 
@@ -107,9 +116,9 @@ int ftrace_init_nop(struct module *mod, struct dyn_ftrace *rec)
 {
 	int out;
 
-	ftrace_arch_code_modify_prepare();
+	mutex_lock(&text_mutex);
 	out = ftrace_make_nop(mod, rec, MCOUNT_ADDR);
-	ftrace_arch_code_modify_post_process();
+	mutex_unlock(&text_mutex);
 
 	return out;
 }

arch/riscv/kernel/patch.c

@@ -11,6 +11,7 @@
 #include <asm/kprobes.h>
 #include <asm/cacheflush.h>
 #include <asm/fixmap.h>
+#include <asm/ftrace.h>
 #include <asm/patch.h>
 
 struct patch_insn {
@@ -20,6 +21,8 @@ struct patch_insn {
 	atomic_t cpu_count;
 };
 
+int riscv_patch_in_stop_machine = false;
+
 #ifdef CONFIG_MMU
 /*
  * The fix_to_virt(, idx) needs a const value (not a dynamic variable of
@@ -60,7 +63,14 @@ static int patch_insn_write(void *addr, const void *insn, size_t len)
 	 * Before reaching here, it was expected to lock the text_mutex
 	 * already, so we don't need to give another lock here and could
 	 * ensure that it was safe between each cores.
+	 *
+	 * We're currently using stop_machine() for ftrace & kprobes, and while
+	 * that ensures text_mutex is held before installing the mappings it
+	 * does not ensure text_mutex is held by the calling thread.  That's
+	 * safe but triggers a lockdep failure, so just elide it for that
+	 * specific case.
 	 */
+	if (!riscv_patch_in_stop_machine)
 		lockdep_assert_held(&text_mutex);
 
 	if (across_pages)
@@ -125,6 +135,7 @@ NOKPROBE_SYMBOL(patch_text_cb);
 
 int patch_text(void *addr, u32 *insns, int ninsns)
 {
+	int ret;
 	struct patch_insn patch = {
 		.addr = addr,
 		.insns = insns,
@@ -132,7 +143,18 @@ int patch_text(void *addr, u32 *insns, int ninsns)
 		.cpu_count = ATOMIC_INIT(0),
 	};
 
-	return stop_machine_cpuslocked(patch_text_cb,
+	/*
-				       &patch, cpu_online_mask);
+	 * kprobes takes text_mutex, before calling patch_text(), but as we call
+	 * calls stop_machine(), the lockdep assertion in patch_insn_write()
+	 * gets confused by the context in which the lock is taken.
+	 * Instead, ensure the lock is held before calling stop_machine(), and
+	 * set riscv_patch_in_stop_machine to skip the check in
+	 * patch_insn_write().
+	 */
+	lockdep_assert_held(&text_mutex);
+	riscv_patch_in_stop_machine = true;
+	ret = stop_machine_cpuslocked(patch_text_cb, &patch, cpu_online_mask);
+	riscv_patch_in_stop_machine = false;
+	return ret;
 }
 NOKPROBE_SYMBOL(patch_text);

arch/riscv/kernel/stacktrace.c

@@ -101,7 +101,7 @@ void notrace walk_stackframe(struct task_struct *task,
 	while (!kstack_end(ksp)) {
 		if (__kernel_text_address(pc) && unlikely(!fn(arg, pc)))
 			break;
-		pc = (*ksp++) - 0x4;
+		pc = READ_ONCE_NOCHECK(*ksp++) - 0x4;
 	}
 }
 

arch/riscv/mm/context.c

@@ -196,16 +196,6 @@ static void set_mm_asid(struct mm_struct *mm, unsigned int cpu)
 
 	if (need_flush_tlb)
 		local_flush_tlb_all();
-#ifdef CONFIG_SMP
-	else {
-		cpumask_t *mask = &mm->context.tlb_stale_mask;
-
-		if (cpumask_test_cpu(cpu, mask)) {
-			cpumask_clear_cpu(cpu, mask);
-			local_flush_tlb_all_asid(cntx & asid_mask);
-		}
-	}
-#endif
 }
 
 static void set_mm_noasid(struct mm_struct *mm)
@@ -215,12 +205,24 @@ static void set_mm_noasid(struct mm_struct *mm)
 	local_flush_tlb_all();
 }
 
-static inline void set_mm(struct mm_struct *mm, unsigned int cpu)
+static inline void set_mm(struct mm_struct *prev,
+			  struct mm_struct *next, unsigned int cpu)
 {
-	if (static_branch_unlikely(&use_asid_allocator))
+	/*
-		set_mm_asid(mm, cpu);
+	 * The mm_cpumask indicates which harts' TLBs contain the virtual
-	else
+	 * address mapping of the mm. Compared to noasid, using asid
-		set_mm_noasid(mm);
+	 * can't guarantee that stale TLB entries are invalidated because
+	 * the asid mechanism wouldn't flush TLB for every switch_mm for
+	 * performance. So when using asid, keep all CPUs footmarks in
+	 * cpumask() until mm reset.
+	 */
+	cpumask_set_cpu(cpu, mm_cpumask(next));
+	if (static_branch_unlikely(&use_asid_allocator)) {
+		set_mm_asid(next, cpu);
+	} else {
+		cpumask_clear_cpu(cpu, mm_cpumask(prev));
+		set_mm_noasid(next);
+	}
 }
 
 static int __init asids_init(void)
@@ -274,7 +276,8 @@ static int __init asids_init(void)
 }
 early_initcall(asids_init);
 #else
-static inline void set_mm(struct mm_struct *mm, unsigned int cpu)
+static inline void set_mm(struct mm_struct *prev,
+			  struct mm_struct *next, unsigned int cpu)
 {
 	/* Nothing to do here when there is no MMU */
 }
@@ -327,10 +330,7 @@ void switch_mm(struct mm_struct *prev, struct mm_struct *next,
 	 */
 	cpu = smp_processor_id();
 
-	cpumask_clear_cpu(cpu, mm_cpumask(prev));
+	set_mm(prev, next, cpu);
-	cpumask_set_cpu(cpu, mm_cpumask(next));
-
-	set_mm(next, cpu);
 
 	flush_icache_deferred(next, cpu);
 }

arch/riscv/mm/fault.c

@@ -143,6 +143,8 @@ static inline void vmalloc_fault(struct pt_regs *regs, int code, unsigned long a
 		no_context(regs, addr);
 		return;
 	}
+	if (pud_leaf(*pud_k))
+		goto flush_tlb;
 
 	/*
 	 * Since the vmalloc area is global, it is unnecessary
@@ -153,6 +155,8 @@ static inline void vmalloc_fault(struct pt_regs *regs, int code, unsigned long a
 		no_context(regs, addr);
 		return;
 	}
+	if (pmd_leaf(*pmd_k))
+		goto flush_tlb;
 
 	/*
 	 * Make sure the actual PTE exists as well to
@@ -172,6 +176,7 @@ static inline void vmalloc_fault(struct pt_regs *regs, int code, unsigned long a
 	 * ordering constraint, not a cache flush; it is
 	 * necessary even after writing invalid entries.
 	 */
+flush_tlb:
 	local_flush_tlb_page(addr);
 }
 

arch/riscv/mm/tlbflush.c

@@ -5,7 +5,23 @@
 #include <linux/sched.h>
 #include <asm/sbi.h>
 #include <asm/mmu_context.h>
-#include <asm/tlbflush.h>
+
+static inline void local_flush_tlb_all_asid(unsigned long asid)
+{
+	__asm__ __volatile__ ("sfence.vma x0, %0"
+			:
+			: "r" (asid)
+			: "memory");
+}
+
+static inline void local_flush_tlb_page_asid(unsigned long addr,
+		unsigned long asid)
+{
+	__asm__ __volatile__ ("sfence.vma %0, %1"
+			:
+			: "r" (addr), "r" (asid)
+			: "memory");
+}
 
 void flush_tlb_all(void)
 {
@@ -15,7 +31,6 @@ void flush_tlb_all(void)
 static void __sbi_tlb_flush_range(struct mm_struct *mm, unsigned long start,
 				  unsigned long size, unsigned long stride)
 {
-	struct cpumask *pmask = &mm->context.tlb_stale_mask;
 	struct cpumask *cmask = mm_cpumask(mm);
 	unsigned int cpuid;
 	bool broadcast;
@@ -29,15 +44,6 @@ static void __sbi_tlb_flush_range(struct mm_struct *mm, unsigned long start,
 	if (static_branch_unlikely(&use_asid_allocator)) {
 		unsigned long asid = atomic_long_read(&mm->context.id);
 
-		/*
-		 * TLB will be immediately flushed on harts concurrently
-		 * executing this MM context. TLB flush on other harts
-		 * is deferred until this MM context migrates there.
-		 */
-		cpumask_setall(pmask);
-		cpumask_clear_cpu(cpuid, pmask);
-		cpumask_andnot(pmask, pmask, cmask);
-
 		if (broadcast) {
 			sbi_remote_sfence_vma_asid(cmask, start, size, asid);
 		} else if (size <= stride) {

arch/riscv/net/bpf_jit_comp64.c

@@ -10,6 +10,7 @@
 #include <linux/filter.h>
 #include <linux/memory.h>
 #include <linux/stop_machine.h>
+#include <asm/patch.h>
 #include "bpf_jit.h"
 
 #define RV_REG_TCC RV_REG_A6

arch/s390/boot/ipl_report.c

@@ -57,11 +57,19 @@ static unsigned long find_bootdata_space(struct ipl_rb_components *comps,
 	if (IS_ENABLED(CONFIG_BLK_DEV_INITRD) && initrd_data.start && initrd_data.size &&
 	    intersects(initrd_data.start, initrd_data.size, safe_addr, size))
 		safe_addr = initrd_data.start + initrd_data.size;
+	if (intersects(safe_addr, size, (unsigned long)comps, comps->len)) {
+		safe_addr = (unsigned long)comps + comps->len;
+		goto repeat;
+	}
 	for_each_rb_entry(comp, comps)
 		if (intersects(safe_addr, size, comp->addr, comp->len)) {
 			safe_addr = comp->addr + comp->len;
 			goto repeat;
 		}
+	if (intersects(safe_addr, size, (unsigned long)certs, certs->len)) {
+		safe_addr = (unsigned long)certs + certs->len;
+		goto repeat;
+	}
 	for_each_rb_entry(cert, certs)
 		if (intersects(safe_addr, size, cert->addr, cert->len)) {
 			safe_addr = cert->addr + cert->len;

arch/s390/configs/debug_defconfig

@@ -23,7 +23,6 @@ CONFIG_NUMA_BALANCING=y
 CONFIG_MEMCG=y
 CONFIG_BLK_CGROUP=y
 CONFIG_CFS_BANDWIDTH=y
-CONFIG_RT_GROUP_SCHED=y
 CONFIG_CGROUP_PIDS=y
 CONFIG_CGROUP_RDMA=y
 CONFIG_CGROUP_FREEZER=y
@@ -90,7 +89,6 @@ CONFIG_MINIX_SUBPARTITION=y
 CONFIG_SOLARIS_X86_PARTITION=y
 CONFIG_UNIXWARE_DISKLABEL=y
 CONFIG_IOSCHED_BFQ=y
-CONFIG_BFQ_GROUP_IOSCHED=y
 CONFIG_BINFMT_MISC=m
 CONFIG_ZSWAP=y
 CONFIG_ZSMALLOC_STAT=y
@@ -298,7 +296,6 @@ CONFIG_IP_NF_TARGET_REJECT=m
 CONFIG_IP_NF_NAT=m
 CONFIG_IP_NF_TARGET_MASQUERADE=m
 CONFIG_IP_NF_MANGLE=m
-CONFIG_IP_NF_TARGET_CLUSTERIP=m
 CONFIG_IP_NF_TARGET_ECN=m
 CONFIG_IP_NF_TARGET_TTL=m
 CONFIG_IP_NF_RAW=m
@@ -340,7 +337,6 @@ CONFIG_BRIDGE_MRP=y
 CONFIG_VLAN_8021Q=m
 CONFIG_VLAN_8021Q_GVRP=y
 CONFIG_NET_SCHED=y
-CONFIG_NET_SCH_CBQ=m
 CONFIG_NET_SCH_HTB=m
 CONFIG_NET_SCH_HFSC=m
 CONFIG_NET_SCH_PRIO=m
@@ -351,7 +347,6 @@ CONFIG_NET_SCH_SFQ=m
 CONFIG_NET_SCH_TEQL=m
 CONFIG_NET_SCH_TBF=m
 CONFIG_NET_SCH_GRED=m
-CONFIG_NET_SCH_DSMARK=m
 CONFIG_NET_SCH_NETEM=m
 CONFIG_NET_SCH_DRR=m
 CONFIG_NET_SCH_MQPRIO=m
@@ -363,14 +358,11 @@ CONFIG_NET_SCH_INGRESS=m
 CONFIG_NET_SCH_PLUG=m
 CONFIG_NET_SCH_ETS=m
 CONFIG_NET_CLS_BASIC=m
-CONFIG_NET_CLS_TCINDEX=m
 CONFIG_NET_CLS_ROUTE4=m
 CONFIG_NET_CLS_FW=m
 CONFIG_NET_CLS_U32=m
 CONFIG_CLS_U32_PERF=y
 CONFIG_CLS_U32_MARK=y
-CONFIG_NET_CLS_RSVP=m
-CONFIG_NET_CLS_RSVP6=m
 CONFIG_NET_CLS_FLOW=m
 CONFIG_NET_CLS_CGROUP=y
 CONFIG_NET_CLS_BPF=m
@@ -584,7 +576,7 @@ CONFIG_DIAG288_WATCHDOG=m
 CONFIG_FB=y
 CONFIG_FRAMEBUFFER_CONSOLE=y
 CONFIG_FRAMEBUFFER_CONSOLE_DETECT_PRIMARY=y
-# CONFIG_HID is not set
+# CONFIG_HID_SUPPORT is not set
 # CONFIG_USB_SUPPORT is not set
 CONFIG_INFINIBAND=m
 CONFIG_INFINIBAND_USER_ACCESS=m
@@ -828,6 +820,7 @@ CONFIG_PANIC_ON_OOPS=y
 CONFIG_DETECT_HUNG_TASK=y
 CONFIG_WQ_WATCHDOG=y
 CONFIG_TEST_LOCKUP=m
+CONFIG_DEBUG_PREEMPT=y
 CONFIG_PROVE_LOCKING=y
 CONFIG_LOCK_STAT=y
 CONFIG_DEBUG_ATOMIC_SLEEP=y
@@ -843,6 +836,7 @@ CONFIG_RCU_CPU_STALL_TIMEOUT=300
 # CONFIG_RCU_TRACE is not set
 CONFIG_LATENCYTOP=y
 CONFIG_BOOTTIME_TRACING=y
+CONFIG_FPROBE=y
 CONFIG_FUNCTION_PROFILER=y
 CONFIG_STACK_TRACER=y
 CONFIG_IRQSOFF_TRACER=y
@@ -857,6 +851,7 @@ CONFIG_SAMPLES=y
 CONFIG_SAMPLE_TRACE_PRINTK=m
 CONFIG_SAMPLE_FTRACE_DIRECT=m
 CONFIG_SAMPLE_FTRACE_DIRECT_MULTI=m
+CONFIG_SAMPLE_FTRACE_OPS=m
 CONFIG_DEBUG_ENTRY=y
 CONFIG_CIO_INJECT=y
 CONFIG_KUNIT=m

arch/s390/configs/defconfig

@@ -21,7 +21,6 @@ CONFIG_NUMA_BALANCING=y
 CONFIG_MEMCG=y
 CONFIG_BLK_CGROUP=y
 CONFIG_CFS_BANDWIDTH=y
-CONFIG_RT_GROUP_SCHED=y
 CONFIG_CGROUP_PIDS=y
 CONFIG_CGROUP_RDMA=y
 CONFIG_CGROUP_FREEZER=y
@@ -85,7 +84,6 @@ CONFIG_MINIX_SUBPARTITION=y
 CONFIG_SOLARIS_X86_PARTITION=y
 CONFIG_UNIXWARE_DISKLABEL=y
 CONFIG_IOSCHED_BFQ=y
-CONFIG_BFQ_GROUP_IOSCHED=y
 CONFIG_BINFMT_MISC=m
 CONFIG_ZSWAP=y
 CONFIG_ZSMALLOC_STAT=y
@@ -289,7 +287,6 @@ CONFIG_IP_NF_TARGET_REJECT=m
 CONFIG_IP_NF_NAT=m
 CONFIG_IP_NF_TARGET_MASQUERADE=m
 CONFIG_IP_NF_MANGLE=m
-CONFIG_IP_NF_TARGET_CLUSTERIP=m
 CONFIG_IP_NF_TARGET_ECN=m
 CONFIG_IP_NF_TARGET_TTL=m
 CONFIG_IP_NF_RAW=m
@@ -330,7 +327,6 @@ CONFIG_BRIDGE_MRP=y
 CONFIG_VLAN_8021Q=m
 CONFIG_VLAN_8021Q_GVRP=y
 CONFIG_NET_SCHED=y
-CONFIG_NET_SCH_CBQ=m
 CONFIG_NET_SCH_HTB=m
 CONFIG_NET_SCH_HFSC=m
 CONFIG_NET_SCH_PRIO=m
@@ -341,7 +337,6 @@ CONFIG_NET_SCH_SFQ=m
 CONFIG_NET_SCH_TEQL=m
 CONFIG_NET_SCH_TBF=m
 CONFIG_NET_SCH_GRED=m
-CONFIG_NET_SCH_DSMARK=m
 CONFIG_NET_SCH_NETEM=m
 CONFIG_NET_SCH_DRR=m
 CONFIG_NET_SCH_MQPRIO=m
@@ -353,14 +348,11 @@ CONFIG_NET_SCH_INGRESS=m
 CONFIG_NET_SCH_PLUG=m
 CONFIG_NET_SCH_ETS=m
 CONFIG_NET_CLS_BASIC=m
-CONFIG_NET_CLS_TCINDEX=m
 CONFIG_NET_CLS_ROUTE4=m
 CONFIG_NET_CLS_FW=m
 CONFIG_NET_CLS_U32=m
 CONFIG_CLS_U32_PERF=y
 CONFIG_CLS_U32_MARK=y
-CONFIG_NET_CLS_RSVP=m
-CONFIG_NET_CLS_RSVP6=m
 CONFIG_NET_CLS_FLOW=m
 CONFIG_NET_CLS_CGROUP=y
 CONFIG_NET_CLS_BPF=m
@@ -573,7 +565,7 @@ CONFIG_DIAG288_WATCHDOG=m
 CONFIG_FB=y
 CONFIG_FRAMEBUFFER_CONSOLE=y
 CONFIG_FRAMEBUFFER_CONSOLE_DETECT_PRIMARY=y
-# CONFIG_HID is not set
+# CONFIG_HID_SUPPORT is not set
 # CONFIG_USB_SUPPORT is not set
 CONFIG_INFINIBAND=m
 CONFIG_INFINIBAND_USER_ACCESS=m
@@ -795,6 +787,7 @@ CONFIG_RCU_REF_SCALE_TEST=m
 CONFIG_RCU_CPU_STALL_TIMEOUT=60
 CONFIG_LATENCYTOP=y
 CONFIG_BOOTTIME_TRACING=y
+CONFIG_FPROBE=y
 CONFIG_FUNCTION_PROFILER=y
 CONFIG_STACK_TRACER=y
 CONFIG_SCHED_TRACER=y
@@ -805,6 +798,7 @@ CONFIG_SAMPLES=y
 CONFIG_SAMPLE_TRACE_PRINTK=m
 CONFIG_SAMPLE_FTRACE_DIRECT=m
 CONFIG_SAMPLE_FTRACE_DIRECT_MULTI=m
+CONFIG_SAMPLE_FTRACE_OPS=m
 CONFIG_KUNIT=m
 CONFIG_KUNIT_DEBUGFS=y
 CONFIG_LKDTM=m

arch/s390/configs/zfcpdump_defconfig

@@ -58,7 +58,7 @@ CONFIG_ZFCP=y
 # CONFIG_VMCP is not set
 # CONFIG_MONWRITER is not set
 # CONFIG_S390_VMUR is not set
-# CONFIG_HID is not set
+# CONFIG_HID_SUPPORT is not set
 # CONFIG_VIRTIO_MENU is not set
 # CONFIG_VHOST_MENU is not set
 # CONFIG_IOMMU_SUPPORT is not set

arch/s390/pci/pci.c

@@ -544,8 +544,7 @@ static struct resource *__alloc_res(struct zpci_dev *zdev, unsigned long start,
 	return r;
 }
 
-int zpci_setup_bus_resources(struct zpci_dev *zdev,
+int zpci_setup_bus_resources(struct zpci_dev *zdev)
-			     struct list_head *resources)
 {
 	unsigned long addr, size, flags;
 	struct resource *res;
@@ -581,7 +580,6 @@ int zpci_setup_bus_resources(struct zpci_dev *zdev,
 			return -ENOMEM;
 		}
 		zdev->bars[i].res = res;
-		pci_add_resource(resources, res);
 	}
 	zdev->has_resources = 1;
 
@@ -590,17 +588,23 @@ int zpci_setup_bus_resources(struct zpci_dev *zdev,
 
 static void zpci_cleanup_bus_resources(struct zpci_dev *zdev)
 {
+	struct resource *res;
 	int i;
 
+	pci_lock_rescan_remove();
 	for (i = 0; i < PCI_STD_NUM_BARS; i++) {
-		if (!zdev->bars[i].size || !zdev->bars[i].res)
+		res = zdev->bars[i].res;
+		if (!res)
 			continue;
 
+		release_resource(res);
+		pci_bus_remove_resource(zdev->zbus->bus, res);
 		zpci_free_iomap(zdev, zdev->bars[i].map_idx);
-		release_resource(zdev->bars[i].res);
+		zdev->bars[i].res = NULL;
-		kfree(zdev->bars[i].res);
+		kfree(res);
 	}
 	zdev->has_resources = 0;
+	pci_unlock_rescan_remove();
 }
 
 int pcibios_device_add(struct pci_dev *pdev)

arch/s390/pci/pci_bus.c

@@ -41,9 +41,7 @@ static int zpci_nb_devices;
  */
 static int zpci_bus_prepare_device(struct zpci_dev *zdev)
 {
-	struct resource_entry *window, *n;
+	int rc, i;
-	struct resource *res;
-	int rc;
 
 	if (!zdev_enabled(zdev)) {
 		rc = zpci_enable_device(zdev);
@@ -57,10 +55,10 @@ static int zpci_bus_prepare_device(struct zpci_dev *zdev)
 	}
 
 	if (!zdev->has_resources) {
-		zpci_setup_bus_resources(zdev, &zdev->zbus->resources);
+		zpci_setup_bus_resources(zdev);
-		resource_list_for_each_entry_safe(window, n, &zdev->zbus->resources) {
+		for (i = 0; i < PCI_STD_NUM_BARS; i++) {
-			res = window->res;
+			if (zdev->bars[i].res)
-			pci_bus_add_resource(zdev->zbus->bus, res, 0);
+				pci_bus_add_resource(zdev->zbus->bus, zdev->bars[i].res, 0);
 		}
 	}
 

arch/s390/pci/pci_bus.h

@@ -30,8 +30,7 @@ static inline void zpci_zdev_get(struct zpci_dev *zdev)
 
 int zpci_alloc_domain(int domain);
 void zpci_free_domain(int domain);
-int zpci_setup_bus_resources(struct zpci_dev *zdev,
+int zpci_setup_bus_resources(struct zpci_dev *zdev);
-			     struct list_head *resources);
 
 static inline struct zpci_dev *zdev_from_bus(struct pci_bus *bus,
 					     unsigned int devfn)

arch/sh/include/asm/processor_32.h

@@ -50,6 +50,7 @@
 #define SR_FD		0x00008000
 #define SR_MD		0x40000000
 
+#define SR_USER_MASK	0x00000303	// M, Q, S, T bits
 /*
  * DSP structure and data
  */

arch/sh/kernel/signal_32.c

@@ -115,6 +115,7 @@ static int
 restore_sigcontext(struct pt_regs *regs, struct sigcontext __user *sc, int *r0_p)
 {
 	unsigned int err = 0;
+	unsigned int sr = regs->sr & ~SR_USER_MASK;
 
 #define COPY(x)		err |= __get_user(regs->x, &sc->sc_##x)
 			COPY(regs[1]);
@@ -130,6 +131,8 @@ restore_sigcontext(struct pt_regs *regs, struct sigcontext __user *sc, int *r0_p
 	COPY(sr);	COPY(pc);
 #undef COPY
 
+	regs->sr = (regs->sr & SR_USER_MASK) | sr;
+
 #ifdef CONFIG_SH_FPU
 	if (boot_cpu_data.flags & CPU_HAS_FPU) {
 		int owned_fp;

arch/x86/include/asm/resctrl.h

@@ -49,7 +49,7 @@ DECLARE_STATIC_KEY_FALSE(rdt_mon_enable_key);
  *   simple as possible.
  * Must be called with preemption disabled.
  */
-static void __resctrl_sched_in(void)
+static inline void __resctrl_sched_in(struct task_struct *tsk)
 {
 	struct resctrl_pqr_state *state = this_cpu_ptr(&pqr_state);
 	u32 closid = state->default_closid;
@@ -61,13 +61,13 @@ static void __resctrl_sched_in(void)
 	 * Else use the closid/rmid assigned to this cpu.
 	 */
 	if (static_branch_likely(&rdt_alloc_enable_key)) {
-		tmp = READ_ONCE(current->closid);
+		tmp = READ_ONCE(tsk->closid);
 		if (tmp)
 			closid = tmp;
 	}
 
 	if (static_branch_likely(&rdt_mon_enable_key)) {
-		tmp = READ_ONCE(current->rmid);
+		tmp = READ_ONCE(tsk->rmid);
 		if (tmp)
 			rmid = tmp;
 	}
@@ -88,17 +88,17 @@ static inline unsigned int resctrl_arch_round_mon_val(unsigned int val)
 	return val * scale;
 }
 
-static inline void resctrl_sched_in(void)
+static inline void resctrl_sched_in(struct task_struct *tsk)
 {
 	if (static_branch_likely(&rdt_enable_key))
-		__resctrl_sched_in();
+		__resctrl_sched_in(tsk);
 }
 
 void resctrl_cpu_detect(struct cpuinfo_x86 *c);
 
 #else
 
-static inline void resctrl_sched_in(void) {}
+static inline void resctrl_sched_in(struct task_struct *tsk) {}
 static inline void resctrl_cpu_detect(struct cpuinfo_x86 *c) {}
 
 #endif /* CONFIG_X86_CPU_RESCTRL */

arch/x86/include/asm/sev-common.h

@@ -128,8 +128,9 @@ struct snp_psc_desc {
 	struct psc_entry entries[VMGEXIT_PSC_MAX_ENTRY];
 } __packed;
 
-/* Guest message request error code */
+/* Guest message request error codes */
 #define SNP_GUEST_REQ_INVALID_LEN	BIT_ULL(32)
+#define SNP_GUEST_REQ_ERR_BUSY		BIT_ULL(33)
 
 #define GHCB_MSR_TERM_REQ		0x100
 #define GHCB_MSR_TERM_REASON_SET_POS	12

arch/x86/include/asm/svm.h

@@ -261,20 +261,22 @@ enum avic_ipi_failure_cause {
 	AVIC_IPI_FAILURE_INVALID_BACKING_PAGE,
 };
 
-#define AVIC_PHYSICAL_MAX_INDEX_MASK	GENMASK_ULL(9, 0)
+#define AVIC_PHYSICAL_MAX_INDEX_MASK	GENMASK_ULL(8, 0)
 
 /*
- * For AVIC, the max index allowed for physical APIC ID
+ * For AVIC, the max index allowed for physical APIC ID table is 0xfe (254), as
- * table is 0xff (255).
+ * 0xff is a broadcast to all CPUs, i.e. can't be targeted individually.
  */
 #define AVIC_MAX_PHYSICAL_ID		0XFEULL
 
 /*
- * For x2AVIC, the max index allowed for physical APIC ID
+ * For x2AVIC, the max index allowed for physical APIC ID table is 0x1ff (511).
- * table is 0x1ff (511).
  */
 #define X2AVIC_MAX_PHYSICAL_ID		0x1FFUL
 
+static_assert((AVIC_MAX_PHYSICAL_ID & AVIC_PHYSICAL_MAX_INDEX_MASK) == AVIC_MAX_PHYSICAL_ID);
+static_assert((X2AVIC_MAX_PHYSICAL_ID & AVIC_PHYSICAL_MAX_INDEX_MASK) == X2AVIC_MAX_PHYSICAL_ID);
+
 #define AVIC_HPA_MASK	~((0xFFFULL << 52) | 0xFFF)
 #define VMCB_AVIC_APIC_BAR_MASK		0xFFFFFFFFFF000ULL
 

arch/x86/include/asm/xen/cpuid.h

@@ -89,11 +89,21 @@
  * Sub-leaf 2: EAX: host tsc frequency in kHz
  */
 
+#define XEN_CPUID_TSC_EMULATED               (1u << 0)
+#define XEN_CPUID_HOST_TSC_RELIABLE          (1u << 1)
+#define XEN_CPUID_RDTSCP_INSTR_AVAIL         (1u << 2)
+
+#define XEN_CPUID_TSC_MODE_DEFAULT           (0)
+#define XEN_CPUID_TSC_MODE_ALWAYS_EMULATE    (1u)
+#define XEN_CPUID_TSC_MODE_NEVER_EMULATE     (2u)
+#define XEN_CPUID_TSC_MODE_PVRDTSCP          (3u)
+
 /*
  * Leaf 5 (0x40000x04)
  * HVM-specific features
  * Sub-leaf 0: EAX: Features
  * Sub-leaf 0: EBX: vcpu id (iff EAX has XEN_HVM_CPUID_VCPU_ID_PRESENT flag)
+ * Sub-leaf 0: ECX: domain id (iff EAX has XEN_HVM_CPUID_DOMID_PRESENT flag)
  */
 #define XEN_HVM_CPUID_APIC_ACCESS_VIRT (1u << 0) /* Virtualized APIC registers */
 #define XEN_HVM_CPUID_X2APIC_VIRT      (1u << 1) /* Virtualized x2APIC accesses */
@@ -102,12 +112,16 @@
 #define XEN_HVM_CPUID_VCPU_ID_PRESENT  (1u << 3) /* vcpu id is present in EBX */
 #define XEN_HVM_CPUID_DOMID_PRESENT    (1u << 4) /* domid is present in ECX */
 /*
- * Bits 55:49 from the IO-APIC RTE and bits 11:5 from the MSI address can be
+ * With interrupt format set to 0 (non-remappable) bits 55:49 from the
- * used to store high bits for the Destination ID. This expands the Destination
+ * IO-APIC RTE and bits 11:5 from the MSI address can be used to store
- * ID field from 8 to 15 bits, allowing to target APIC IDs up 32768.
+ * high bits for the Destination ID. This expands the Destination ID
+ * field from 8 to 15 bits, allowing to target APIC IDs up 32768.
  */
 #define XEN_HVM_CPUID_EXT_DEST_ID      (1u << 5)
-/* Per-vCPU event channel upcalls */
+/*
+ * Per-vCPU event channel upcalls work correctly with physical IRQs
+ * bound to event channels.
+ */
 #define XEN_HVM_CPUID_UPCALL_VECTOR    (1u << 6)
 
 /*

arch/x86/kernel/cpu/amd.c

@@ -880,6 +880,15 @@ void init_spectral_chicken(struct cpuinfo_x86 *c)
 		}
 	}
 #endif
+	/*
+	 * Work around Erratum 1386.  The XSAVES instruction malfunctions in
+	 * certain circumstances on Zen1/2 uarch, and not all parts have had
+	 * updated microcode at the time of writing (March 2023).
+	 *
+	 * Affected parts all have no supervisor XSAVE states, meaning that
+	 * the XSAVEC instruction (which works fine) is equivalent.
+	 */
+	clear_cpu_cap(c, X86_FEATURE_XSAVES);
 }
 
 static void init_amd_zn(struct cpuinfo_x86 *c)

arch/x86/kernel/cpu/mce/core.c

@@ -2355,6 +2355,7 @@ static void mce_restart(void)
 {
 	mce_timer_delete_all();
 	on_each_cpu(mce_cpu_restart, NULL, 1);
+	mce_schedule_work();
 }
 
 /* Toggle features for corrected errors */

arch/x86/kernel/cpu/resctrl/ctrlmondata.c

@@ -368,7 +368,6 @@ ssize_t rdtgroup_schemata_write(struct kernfs_open_file *of,
 {
 	struct resctrl_schema *s;
 	struct rdtgroup *rdtgrp;
-	struct rdt_domain *dom;
 	struct rdt_resource *r;
 	char *tok, *resname;
 	int ret = 0;
@@ -397,10 +396,7 @@ ssize_t rdtgroup_schemata_write(struct kernfs_open_file *of,
 		goto out;
 	}
 
-	list_for_each_entry(s, &resctrl_schema_all, list) {
+	rdt_staged_configs_clear();
-		list_for_each_entry(dom, &s->res->domains, list)
-			memset(dom->staged_config, 0, sizeof(dom->staged_config));
-	}
 
 	while ((tok = strsep(&buf, "\n")) != NULL) {
 		resname = strim(strsep(&tok, ":"));
@@ -445,6 +441,7 @@ ssize_t rdtgroup_schemata_write(struct kernfs_open_file *of,
 	}
 
 out:
+	rdt_staged_configs_clear();
 	rdtgroup_kn_unlock(of->kn);
 	cpus_read_unlock();
 	return ret ?: nbytes;

arch/x86/kernel/cpu/resctrl/internal.h

@@ -555,5 +555,6 @@ void __check_limbo(struct rdt_domain *d, bool force_free);
 void rdt_domain_reconfigure_cdp(struct rdt_resource *r);
 void __init thread_throttle_mode_init(void);
 void __init mbm_config_rftype_init(const char *config);
+void rdt_staged_configs_clear(void);
 
 #endif /* _ASM_X86_RESCTRL_INTERNAL_H */

arch/x86/kernel/cpu/resctrl/rdtgroup.c

@@ -78,6 +78,19 @@ void rdt_last_cmd_printf(const char *fmt, ...)
 	va_end(ap);
 }
 
+void rdt_staged_configs_clear(void)
+{
+	struct rdt_resource *r;
+	struct rdt_domain *dom;
+
+	lockdep_assert_held(&rdtgroup_mutex);
+
+	for_each_alloc_capable_rdt_resource(r) {
+		list_for_each_entry(dom, &r->domains, list)
+			memset(dom->staged_config, 0, sizeof(dom->staged_config));
+	}
+}
+
 /*
  * Trivial allocator for CLOSIDs. Since h/w only supports a small number,
  * we can keep a bitmap of free CLOSIDs in a single integer.
@@ -314,7 +327,7 @@ static void update_cpu_closid_rmid(void *info)
 	 * executing task might have its own closid selected. Just reuse
 	 * the context switch code.
 	 */
-	resctrl_sched_in();
+	resctrl_sched_in(current);
 }
 
 /*
@@ -530,7 +543,7 @@ static void _update_task_closid_rmid(void *task)
 	 * Otherwise, the MSR is updated when the task is scheduled in.
 	 */
 	if (task == current)
-		resctrl_sched_in();
+		resctrl_sched_in(task);
 }
 
 static void update_task_closid_rmid(struct task_struct *t)
@@ -3107,7 +3120,9 @@ static int rdtgroup_init_alloc(struct rdtgroup *rdtgrp)
 {
 	struct resctrl_schema *s;
 	struct rdt_resource *r;
-	int ret;
+	int ret = 0;
+
+	rdt_staged_configs_clear();
 
 	list_for_each_entry(s, &resctrl_schema_all, list) {
 		r = s->res;
@@ -3119,20 +3134,22 @@ static int rdtgroup_init_alloc(struct rdtgroup *rdtgrp)
 		} else {
 			ret = rdtgroup_init_cat(s, rdtgrp->closid);
 			if (ret < 0)
-				return ret;
+				goto out;
 		}
 
 		ret = resctrl_arch_update_domains(r, rdtgrp->closid);
 		if (ret < 0) {
 			rdt_last_cmd_puts("Failed to initialize allocations\n");
-			return ret;
+			goto out;
 		}
 
 	}
 
 	rdtgrp->mode = RDT_MODE_SHAREABLE;
 
-	return 0;
+out:
+	rdt_staged_configs_clear();
+	return ret;
 }
 
 static int mkdir_rdt_prepare(struct kernfs_node *parent_kn,

arch/x86/kernel/ftrace_64.S

@@ -136,10 +136,12 @@ SYM_TYPED_FUNC_START(ftrace_stub)
 	RET
 SYM_FUNC_END(ftrace_stub)
 
+#ifdef CONFIG_FUNCTION_GRAPH_TRACER
 SYM_TYPED_FUNC_START(ftrace_stub_graph)
 	CALL_DEPTH_ACCOUNT
 	RET
 SYM_FUNC_END(ftrace_stub_graph)
+#endif
 
 #ifdef CONFIG_DYNAMIC_FTRACE
 

arch/x86/kernel/process_32.c

@@ -212,7 +212,7 @@ __switch_to(struct task_struct *prev_p, struct task_struct *next_p)
 	switch_fpu_finish();
 
 	/* Load the Intel cache allocation PQR MSR. */
-	resctrl_sched_in();
+	resctrl_sched_in(next_p);
 
 	return prev_p;
 }

arch/x86/kernel/process_64.c

@@ -656,7 +656,7 @@ __switch_to(struct task_struct *prev_p, struct task_struct *next_p)
 	}
 
 	/* Load the Intel cache allocation PQR MSR. */
-	resctrl_sched_in();
+	resctrl_sched_in(next_p);
 
 	return prev_p;
 }

arch/x86/kernel/sev.c

@@ -2183,9 +2183,6 @@ int snp_issue_guest_request(u64 exit_code, struct snp_req_data *input, unsigned
 	struct ghcb *ghcb;
 	int ret;
 
-	if (!cc_platform_has(CC_ATTR_GUEST_SEV_SNP))
-		return -ENODEV;
-
 	if (!fw_err)
 		return -EINVAL;
 
@@ -2212,15 +2209,26 @@ int snp_issue_guest_request(u64 exit_code, struct snp_req_data *input, unsigned
 	if (ret)
 		goto e_put;
 
-	if (ghcb->save.sw_exit_info_2) {
-		/* Number of expected pages are returned in RBX */
-		if (exit_code == SVM_VMGEXIT_EXT_GUEST_REQUEST &&
-		    ghcb->save.sw_exit_info_2 == SNP_GUEST_REQ_INVALID_LEN)
-			input->data_npages = ghcb_get_rbx(ghcb);
-
 	*fw_err = ghcb->save.sw_exit_info_2;
+	switch (*fw_err) {
+	case 0:
+		break;
 
+	case SNP_GUEST_REQ_ERR_BUSY:
+		ret = -EAGAIN;
+		break;
+
+	case SNP_GUEST_REQ_INVALID_LEN:
+		/* Number of expected pages are returned in RBX */
+		if (exit_code == SVM_VMGEXIT_EXT_GUEST_REQUEST) {
+			input->data_npages = ghcb_get_rbx(ghcb);
+			ret = -ENOSPC;
+			break;
+		}
+		fallthrough;
+	default:
 		ret = -EIO;
+		break;
 	}
 
 e_put:

arch/x86/kvm/svm/avic.c

@@ -27,19 +27,38 @@
 #include "irq.h"
 #include "svm.h"
 
-/* AVIC GATAG is encoded using VM and VCPU IDs */
+/*
-#define AVIC_VCPU_ID_BITS		8
+ * Encode the arbitrary VM ID and the vCPU's default APIC ID, i.e the vCPU ID,
-#define AVIC_VCPU_ID_MASK		((1 << AVIC_VCPU_ID_BITS) - 1)
+ * into the GATag so that KVM can retrieve the correct vCPU from a GALog entry
+ * if an interrupt can't be delivered, e.g. because the vCPU isn't running.
+ *
+ * For the vCPU ID, use however many bits are currently allowed for the max
+ * guest physical APIC ID (limited by the size of the physical ID table), and
+ * use whatever bits remain to assign arbitrary AVIC IDs to VMs.  Note, the
+ * size of the GATag is defined by hardware (32 bits), but is an opaque value
+ * as far as hardware is concerned.
+ */
+#define AVIC_VCPU_ID_MASK		AVIC_PHYSICAL_MAX_INDEX_MASK
 
-#define AVIC_VM_ID_BITS			24
+#define AVIC_VM_ID_SHIFT		HWEIGHT32(AVIC_PHYSICAL_MAX_INDEX_MASK)
-#define AVIC_VM_ID_NR			(1 << AVIC_VM_ID_BITS)
+#define AVIC_VM_ID_MASK			(GENMASK(31, AVIC_VM_ID_SHIFT) >> AVIC_VM_ID_SHIFT)
-#define AVIC_VM_ID_MASK			((1 << AVIC_VM_ID_BITS) - 1)
 
-#define AVIC_GATAG(x, y)		(((x & AVIC_VM_ID_MASK) << AVIC_VCPU_ID_BITS) | \
+#define AVIC_GATAG_TO_VMID(x)		((x >> AVIC_VM_ID_SHIFT) & AVIC_VM_ID_MASK)
-						(y & AVIC_VCPU_ID_MASK))
-#define AVIC_GATAG_TO_VMID(x)		((x >> AVIC_VCPU_ID_BITS) & AVIC_VM_ID_MASK)
 #define AVIC_GATAG_TO_VCPUID(x)		(x & AVIC_VCPU_ID_MASK)
 
+#define __AVIC_GATAG(vm_id, vcpu_id)	((((vm_id) & AVIC_VM_ID_MASK) << AVIC_VM_ID_SHIFT) | \
+					 ((vcpu_id) & AVIC_VCPU_ID_MASK))
+#define AVIC_GATAG(vm_id, vcpu_id)					\
+({									\
+	u32 ga_tag = __AVIC_GATAG(vm_id, vcpu_id);			\
+									\
+	WARN_ON_ONCE(AVIC_GATAG_TO_VCPUID(ga_tag) != (vcpu_id));	\
+	WARN_ON_ONCE(AVIC_GATAG_TO_VMID(ga_tag) != (vm_id));		\
+	ga_tag;								\
+})
+
+static_assert(__AVIC_GATAG(AVIC_VM_ID_MASK, AVIC_VCPU_ID_MASK) == -1u);
+
 static bool force_avic;
 module_param_unsafe(force_avic, bool, 0444);
 

arch/x86/kvm/vmx/nested.c

@@ -2903,7 +2903,7 @@ static int nested_vmx_check_address_space_size(struct kvm_vcpu *vcpu,
 static int nested_vmx_check_host_state(struct kvm_vcpu *vcpu,
 				       struct vmcs12 *vmcs12)
 {
-	bool ia32e;
+	bool ia32e = !!(vmcs12->vm_exit_controls & VM_EXIT_HOST_ADDR_SPACE_SIZE);
 
 	if (CC(!nested_host_cr0_valid(vcpu, vmcs12->host_cr0)) ||
 	    CC(!nested_host_cr4_valid(vcpu, vmcs12->host_cr4)) ||
@@ -2923,12 +2923,6 @@ static int nested_vmx_check_host_state(struct kvm_vcpu *vcpu,
 					   vmcs12->host_ia32_perf_global_ctrl)))
 		return -EINVAL;
 
-#ifdef CONFIG_X86_64
-	ia32e = !!(vmcs12->vm_exit_controls & VM_EXIT_HOST_ADDR_SPACE_SIZE);
-#else
-	ia32e = false;
-#endif
-
 	if (ia32e) {
 		if (CC(!(vmcs12->host_cr4 & X86_CR4_PAE)))
 			return -EINVAL;
@@ -3022,7 +3016,7 @@ static int nested_vmx_check_guest_state(struct kvm_vcpu *vcpu,
 					struct vmcs12 *vmcs12,
 					enum vm_entry_failure_code *entry_failure_code)
 {
-	bool ia32e;
+	bool ia32e = !!(vmcs12->vm_entry_controls & VM_ENTRY_IA32E_MODE);
 
 	*entry_failure_code = ENTRY_FAIL_DEFAULT;
 
@@ -3048,6 +3042,13 @@ static int nested_vmx_check_guest_state(struct kvm_vcpu *vcpu,
 					   vmcs12->guest_ia32_perf_global_ctrl)))
 		return -EINVAL;
 
+	if (CC((vmcs12->guest_cr0 & (X86_CR0_PG | X86_CR0_PE)) == X86_CR0_PG))
+		return -EINVAL;
+
+	if (CC(ia32e && !(vmcs12->guest_cr4 & X86_CR4_PAE)) ||
+	    CC(ia32e && !(vmcs12->guest_cr0 & X86_CR0_PG)))
+		return -EINVAL;
+
 	/*
 	 * If the load IA32_EFER VM-entry control is 1, the following checks
 	 * are performed on the field for the IA32_EFER MSR:
@@ -3059,7 +3060,6 @@ static int nested_vmx_check_guest_state(struct kvm_vcpu *vcpu,
 	 */
 	if (to_vmx(vcpu)->nested.nested_run_pending &&
 	    (vmcs12->vm_entry_controls & VM_ENTRY_LOAD_IA32_EFER)) {
-		ia32e = (vmcs12->vm_entry_controls & VM_ENTRY_IA32E_MODE) != 0;
 		if (CC(!kvm_valid_efer(vcpu, vmcs12->guest_ia32_efer)) ||
 		    CC(ia32e != !!(vmcs12->guest_ia32_efer & EFER_LMA)) ||
 		    CC(((vmcs12->guest_cr0 & X86_CR0_PG) &&

arch/x86/kvm/vmx/vmenter.S

@@ -311,7 +311,7 @@ SYM_FUNC_END(vmx_do_nmi_irqoff)
  * vmread_error_trampoline - Trampoline from inline asm to vmread_error()
  * @field:	VMCS field encoding that failed
  * @fault:	%true if the VMREAD faulted, %false if it failed
-
+ *
  * Save and restore volatile registers across a call to vmread_error().  Note,
  * all parameters are passed on the stack.
  */

arch/x86/mm/mem_encrypt_identity.c

@@ -600,7 +600,8 @@ void __init sme_enable(struct boot_params *bp)
 	cmdline_ptr = (const char *)((u64)bp->hdr.cmd_line_ptr |
 				     ((u64)bp->ext_cmd_line_ptr << 32));
 
-	cmdline_find_option(cmdline_ptr, cmdline_arg, buffer, sizeof(buffer));
+	if (cmdline_find_option(cmdline_ptr, cmdline_arg, buffer, sizeof(buffer)) < 0)
+		return;
 
 	if (!strncmp(buffer, cmdline_on, sizeof(buffer)))
 		sme_me_mask = me_mask;

arch/x86/xen/Makefile

@@ -45,6 +45,6 @@ obj-$(CONFIG_PARAVIRT_SPINLOCKS)+= spinlock.o
 
 obj-$(CONFIG_XEN_DEBUG_FS)	+= debugfs.o
 
-obj-$(CONFIG_XEN_PV_DOM0)	+= vga.o
+obj-$(CONFIG_XEN_DOM0)		+= vga.o
 
 obj-$(CONFIG_XEN_EFI)		+= efi.o

arch/x86/xen/enlighten_pv.c

@@ -1390,7 +1390,8 @@ asmlinkage __visible void __init xen_start_kernel(struct start_info *si)
 
 		x86_platform.set_legacy_features =
 				xen_dom0_set_legacy_features;
-		xen_init_vga(info, xen_start_info->console.dom0.info_size);
+		xen_init_vga(info, xen_start_info->console.dom0.info_size,
+			     &boot_params.screen_info);
 		xen_start_info->console.domU.mfn = 0;
 		xen_start_info->console.domU.evtchn = 0;
 

arch/x86/xen/enlighten_pvh.c

@@ -43,6 +43,19 @@ void __init xen_pvh_init(struct boot_params *boot_params)
 	x86_init.oem.banner = xen_banner;
 
 	xen_efi_init(boot_params);
+
+	if (xen_initial_domain()) {
+		struct xen_platform_op op = {
+			.cmd = XENPF_get_dom0_console,
+		};
+		long ret = HYPERVISOR_platform_op(&op);
+
+		if (ret > 0)
+			xen_init_vga(&op.u.dom0_console,
+				     min(ret * sizeof(char),
+					 sizeof(op.u.dom0_console)),
+				     &boot_params->screen_info);
+	}
 }
 
 void __init mem_map_via_hcall(struct boot_params *boot_params_p)

arch/x86/xen/time.c

@@ -20,6 +20,7 @@
 #include <asm/pvclock.h>
 #include <asm/xen/hypervisor.h>
 #include <asm/xen/hypercall.h>
+#include <asm/xen/cpuid.h>
 
 #include <xen/events.h>
 #include <xen/features.h>
@@ -503,11 +504,7 @@ static int __init xen_tsc_safe_clocksource(void)
 	/* Leaf 4, sub-leaf 0 (0x40000x03) */
 	cpuid_count(xen_cpuid_base() + 3, 0, &eax, &ebx, &ecx, &edx);
 
-	/* tsc_mode = no_emulate (2) */
+	return ebx == XEN_CPUID_TSC_MODE_NEVER_EMULATE;
-	if (ebx != 2)
-		return 0;
-
-	return 1;
 }
 
 static void __init xen_time_init(void)

arch/x86/xen/vga.c

@@ -9,10 +9,9 @@
 
 #include "xen-ops.h"
 
-void __init xen_init_vga(const struct dom0_vga_console_info *info, size_t size)
+void __init xen_init_vga(const struct dom0_vga_console_info *info, size_t size,
+			 struct screen_info *screen_info)
 {
-	struct screen_info *screen_info = &boot_params.screen_info;
-
 	/* This is drawn from a dump from vgacon:startup in
 	 * standard Linux. */
 	screen_info->orig_video_mode = 3;

arch/x86/xen/xen-ops.h

@@ -108,11 +108,12 @@ static inline void xen_uninit_lock_cpu(int cpu)
 
 struct dom0_vga_console_info;
 
-#ifdef CONFIG_XEN_PV_DOM0
+#ifdef CONFIG_XEN_DOM0
-void __init xen_init_vga(const struct dom0_vga_console_info *, size_t size);
+void __init xen_init_vga(const struct dom0_vga_console_info *, size_t size,
+			 struct screen_info *);
 #else
 static inline void __init xen_init_vga(const struct dom0_vga_console_info *info,
-				       size_t size)
+				       size_t size, struct screen_info *si)
 {
 }
 #endif

block/Kconfig

@@ -204,9 +204,6 @@ config BLK_INLINE_ENCRYPTION_FALLBACK
 
 source "block/partitions/Kconfig"
 
-config BLOCK_COMPAT
-	def_bool COMPAT
-
 config BLK_MQ_PCI
 	def_bool PCI
 

block/bfq-iosched.c

@@ -2854,11 +2854,11 @@ bfq_setup_stable_merge(struct bfq_data *bfqd, struct bfq_queue *bfqq,
 {
 	int proc_ref = min(bfqq_process_refs(bfqq),
 			   bfqq_process_refs(stable_merge_bfqq));
-	struct bfq_queue *new_bfqq;
+	struct bfq_queue *new_bfqq = NULL;
 
-	if (idling_boosts_thr_without_issues(bfqd, bfqq) ||
+	bfqq_data->stable_merge_bfqq = NULL;
-	    proc_ref == 0)
+	if (idling_boosts_thr_without_issues(bfqd, bfqq) || proc_ref == 0)
-		return NULL;
+		goto out;
 
 	/* next function will take at least one ref */
 	new_bfqq = bfq_setup_merge(bfqq, stable_merge_bfqq);
@@ -2873,6 +2873,11 @@ bfq_setup_stable_merge(struct bfq_data *bfqd, struct bfq_queue *bfqq,
 			new_bfqq_data->stably_merged = true;
 		}
 	}
+
+out:
+	/* deschedule stable merge, because done or aborted here */
+	bfq_put_stable_ref(stable_merge_bfqq);
+
 	return new_bfqq;
 }
 
@@ -2933,11 +2938,6 @@ bfq_setup_cooperator(struct bfq_data *bfqd, struct bfq_queue *bfqq,
 			struct bfq_queue *stable_merge_bfqq =
 				bfqq_data->stable_merge_bfqq;
 
-			/* deschedule stable merge, because done or aborted here */
-			bfq_put_stable_ref(stable_merge_bfqq);
-
-			bfqq_data->stable_merge_bfqq = NULL;
-
 			return bfq_setup_stable_merge(bfqd, bfqq,
 						      stable_merge_bfqq,
 						      bfqq_data);

block/blk-core.c

@@ -959,16 +959,11 @@ void update_io_ticks(struct block_device *part, unsigned long now, bool end)
 	}
 }
 
-unsigned long bdev_start_io_acct(struct block_device *bdev,
+unsigned long bdev_start_io_acct(struct block_device *bdev, enum req_op op,
-				 unsigned int sectors, enum req_op op,
 				 unsigned long start_time)
 {
-	const int sgrp = op_stat_group(op);
-
 	part_stat_lock();
 	update_io_ticks(bdev, start_time, false);
-	part_stat_inc(bdev, ios[sgrp]);
-	part_stat_add(bdev, sectors[sgrp], sectors);
 	part_stat_local_inc(bdev, in_flight[op_is_write(op)]);
 	part_stat_unlock();
 
@@ -984,13 +979,12 @@ EXPORT_SYMBOL(bdev_start_io_acct);
  */
 unsigned long bio_start_io_acct(struct bio *bio)
 {
-	return bdev_start_io_acct(bio->bi_bdev, bio_sectors(bio),
+	return bdev_start_io_acct(bio->bi_bdev, bio_op(bio), jiffies);
-				  bio_op(bio), jiffies);
 }
 EXPORT_SYMBOL_GPL(bio_start_io_acct);
 
 void bdev_end_io_acct(struct block_device *bdev, enum req_op op,
-		      unsigned long start_time)
+		      unsigned int sectors, unsigned long start_time)
 {
 	const int sgrp = op_stat_group(op);
 	unsigned long now = READ_ONCE(jiffies);
@@ -998,6 +992,8 @@ void bdev_end_io_acct(struct block_device *bdev, enum req_op op,
 
 	part_stat_lock();
 	update_io_ticks(bdev, now, true);
+	part_stat_inc(bdev, ios[sgrp]);
+	part_stat_add(bdev, sectors[sgrp], sectors);
 	part_stat_add(bdev, nsecs[sgrp], jiffies_to_nsecs(duration));
 	part_stat_local_dec(bdev, in_flight[op_is_write(op)]);
 	part_stat_unlock();
@@ -1007,7 +1003,7 @@ EXPORT_SYMBOL(bdev_end_io_acct);
 void bio_end_io_acct_remapped(struct bio *bio, unsigned long start_time,
 			      struct block_device *orig_bdev)
 {
-	bdev_end_io_acct(orig_bdev, bio_op(bio), start_time);
+	bdev_end_io_acct(orig_bdev, bio_op(bio), bio_sectors(bio), start_time);
 }
 EXPORT_SYMBOL_GPL(bio_end_io_acct_remapped);
 

block/blk-mq.c

@@ -2725,6 +2725,7 @@ static void blk_mq_dispatch_plug_list(struct blk_plug *plug, bool from_sched)
 	struct blk_mq_hw_ctx *this_hctx = NULL;
 	struct blk_mq_ctx *this_ctx = NULL;
 	struct request *requeue_list = NULL;
+	struct request **requeue_lastp = &requeue_list;
 	unsigned int depth = 0;
 	LIST_HEAD(list);
 
@@ -2735,10 +2736,10 @@ static void blk_mq_dispatch_plug_list(struct blk_plug *plug, bool from_sched)
 			this_hctx = rq->mq_hctx;
 			this_ctx = rq->mq_ctx;
 		} else if (this_hctx != rq->mq_hctx || this_ctx != rq->mq_ctx) {
-			rq_list_add(&requeue_list, rq);
+			rq_list_add_tail(&requeue_lastp, rq);
 			continue;
 		}
-		list_add_tail(&rq->queuelist, &list);
+		list_add(&rq->queuelist, &list);
 		depth++;
 	} while (!rq_list_empty(plug->mq_list));
 

block/blk-mq.h

@@ -378,12 +378,13 @@ static inline bool hctx_may_queue(struct blk_mq_hw_ctx *hctx,
 #define __blk_mq_run_dispatch_ops(q, check_sleep, dispatch_ops)	\
 do {								\
 	if ((q)->tag_set->flags & BLK_MQ_F_BLOCKING) {		\
+		struct blk_mq_tag_set *__tag_set = (q)->tag_set; \
 		int srcu_idx;					\
 								\
 		might_sleep_if(check_sleep);			\
-		srcu_idx = srcu_read_lock((q)->tag_set->srcu);	\
+		srcu_idx = srcu_read_lock(__tag_set->srcu);	\
 		(dispatch_ops);					\
-		srcu_read_unlock((q)->tag_set->srcu, srcu_idx);	\
+		srcu_read_unlock(__tag_set->srcu, srcu_idx);	\
 	} else {						\
 		rcu_read_lock();				\
 		(dispatch_ops);					\

block/genhd.c

@@ -385,7 +385,7 @@ int disk_scan_partitions(struct gendisk *disk, fmode_t mode)
 	if (IS_ERR(bdev))
 		ret =  PTR_ERR(bdev);
 	else
-		blkdev_put(bdev, mode);
+		blkdev_put(bdev, mode & ~FMODE_EXCL);
 
 	if (!(mode & FMODE_EXCL))
 		bd_abort_claiming(disk->part0, disk_scan_partitions);

drivers/accel/Makefile

@@ -1,4 +1,4 @@
 # SPDX-License-Identifier: GPL-2.0-only
 
-obj-y	+= habanalabs/
+obj-$(CONFIG_DRM_ACCEL_HABANALABS)	+= habanalabs/
-obj-y	+= ivpu/
+obj-$(CONFIG_DRM_ACCEL_IVPU)		+= ivpu/

drivers/acpi/pptt.c

@@ -536,16 +536,19 @@ static int topology_get_acpi_cpu_tag(struct acpi_table_header *table,
 static struct acpi_table_header *acpi_get_pptt(void)
 {
 	static struct acpi_table_header *pptt;
+	static bool is_pptt_checked;
 	acpi_status status;
 
 	/*
 	 * PPTT will be used at runtime on every CPU hotplug in path, so we
 	 * don't need to call acpi_put_table() to release the table mapping.
 	 */
-	if (!pptt) {
+	if (!pptt && !is_pptt_checked) {
 		status = acpi_get_table(ACPI_SIG_PPTT, 0, &pptt);
 		if (ACPI_FAILURE(status))
 			acpi_pptt_warn_missing();
+
+		is_pptt_checked = true;
 	}
 
 	return pptt;

drivers/acpi/video_detect.c

@@ -716,6 +716,13 @@ static const struct dmi_system_id video_detect_dmi_table[] = {
 		DMI_MATCH(DMI_PRODUCT_NAME, "Dell G15 5515"),
 		},
 	},
+	{
+	 .callback = video_detect_force_native,
+	 .matches = {
+		DMI_MATCH(DMI_SYS_VENDOR, "Dell Inc."),
+		DMI_MATCH(DMI_PRODUCT_NAME, "Vostro 15 3535"),
+		},
+	},
 
 	/*
 	 * Desktops which falsely report a backlight and which our heuristics

drivers/acpi/x86/utils.c

@@ -251,6 +251,7 @@ bool force_storage_d3(void)
 #define ACPI_QUIRK_UART1_TTY_UART2_SKIP				BIT(1)
 #define ACPI_QUIRK_SKIP_ACPI_AC_AND_BATTERY			BIT(2)
 #define ACPI_QUIRK_USE_ACPI_AC_AND_BATTERY			BIT(3)
+#define ACPI_QUIRK_SKIP_GPIO_EVENT_HANDLERS			BIT(4)
 
 static const struct dmi_system_id acpi_quirk_skip_dmi_ids[] = {
 	/*
@@ -279,6 +280,16 @@ static const struct dmi_system_id acpi_quirk_skip_dmi_ids[] = {
 	 *    need the x86-android-tablets module to properly work.
 	 */
 #if IS_ENABLED(CONFIG_X86_ANDROID_TABLETS)
+	{
+		/* Acer Iconia One 7 B1-750 */
+		.matches = {
+			DMI_MATCH(DMI_SYS_VENDOR, "Insyde"),
+			DMI_MATCH(DMI_PRODUCT_NAME, "VESPA2"),
+		},
+		.driver_data = (void *)(ACPI_QUIRK_SKIP_I2C_CLIENTS |
+					ACPI_QUIRK_SKIP_ACPI_AC_AND_BATTERY |
+					ACPI_QUIRK_SKIP_GPIO_EVENT_HANDLERS),
+	},
 	{
 		.matches = {
 			DMI_EXACT_MATCH(DMI_SYS_VENDOR, "ASUSTeK COMPUTER INC."),
@@ -286,7 +297,19 @@ static const struct dmi_system_id acpi_quirk_skip_dmi_ids[] = {
 		},
 		.driver_data = (void *)(ACPI_QUIRK_SKIP_I2C_CLIENTS |
 					ACPI_QUIRK_UART1_TTY_UART2_SKIP |
-					ACPI_QUIRK_SKIP_ACPI_AC_AND_BATTERY),
+					ACPI_QUIRK_SKIP_ACPI_AC_AND_BATTERY |
+					ACPI_QUIRK_SKIP_GPIO_EVENT_HANDLERS),
+	},
+	{
+		/* Lenovo Yoga Book X90F/L */
+		.matches = {
+			DMI_EXACT_MATCH(DMI_SYS_VENDOR, "Intel Corporation"),
+			DMI_EXACT_MATCH(DMI_PRODUCT_NAME, "CHERRYVIEW D1 PLATFORM"),
+			DMI_EXACT_MATCH(DMI_PRODUCT_VERSION, "YETI-11"),
+		},
+		.driver_data = (void *)(ACPI_QUIRK_SKIP_I2C_CLIENTS |
+					ACPI_QUIRK_SKIP_ACPI_AC_AND_BATTERY |
+					ACPI_QUIRK_SKIP_GPIO_EVENT_HANDLERS),
 	},
 	{
 		.matches = {
@@ -294,7 +317,8 @@ static const struct dmi_system_id acpi_quirk_skip_dmi_ids[] = {
 			DMI_MATCH(DMI_PRODUCT_NAME, "TF103C"),
 		},
 		.driver_data = (void *)(ACPI_QUIRK_SKIP_I2C_CLIENTS |
-					ACPI_QUIRK_SKIP_ACPI_AC_AND_BATTERY),
+					ACPI_QUIRK_SKIP_ACPI_AC_AND_BATTERY |
+					ACPI_QUIRK_SKIP_GPIO_EVENT_HANDLERS),
 	},
 	{
 		/* Lenovo Yoga Tablet 2 1050F/L */
@@ -336,7 +360,8 @@ static const struct dmi_system_id acpi_quirk_skip_dmi_ids[] = {
 			DMI_MATCH(DMI_PRODUCT_NAME, "M890BAP"),
 		},
 		.driver_data = (void *)(ACPI_QUIRK_SKIP_I2C_CLIENTS |
-					ACPI_QUIRK_SKIP_ACPI_AC_AND_BATTERY),
+					ACPI_QUIRK_SKIP_ACPI_AC_AND_BATTERY |
+					ACPI_QUIRK_SKIP_GPIO_EVENT_HANDLERS),
 	},
 	{
 		/* Whitelabel (sold as various brands) TM800A550L */
@@ -413,6 +438,20 @@ int acpi_quirk_skip_serdev_enumeration(struct device *controller_parent, bool *s
 	return 0;
 }
 EXPORT_SYMBOL_GPL(acpi_quirk_skip_serdev_enumeration);
+
+bool acpi_quirk_skip_gpio_event_handlers(void)
+{
+	const struct dmi_system_id *dmi_id;
+	long quirks;
+
+	dmi_id = dmi_first_match(acpi_quirk_skip_dmi_ids);
+	if (!dmi_id)
+		return false;
+
+	quirks = (unsigned long)dmi_id->driver_data;
+	return (quirks & ACPI_QUIRK_SKIP_GPIO_EVENT_HANDLERS);
+}
+EXPORT_SYMBOL_GPL(acpi_quirk_skip_gpio_event_handlers);
 #endif
 
 /* Lists of PMIC ACPI HIDs with an (often better) native charger driver */

drivers/ata/pata_parport/pata_parport.c

@@ -381,6 +381,7 @@ static void pata_parport_dev_release(struct device *dev)
 {
 	struct pi_adapter *pi = container_of(dev, struct pi_adapter, dev);
 
+	ida_free(&pata_parport_bus_dev_ids, dev->id);
 	kfree(pi);
 }
 
@@ -433,23 +434,27 @@ static struct pi_adapter *pi_init_one(struct parport *parport,
 	if (bus_for_each_dev(&pata_parport_bus_type, NULL, &match, pi_find_dev))
 		return NULL;
 
-	pi = kzalloc(sizeof(struct pi_adapter), GFP_KERNEL);
+	id = ida_alloc(&pata_parport_bus_dev_ids, GFP_KERNEL);
-	if (!pi)
+	if (id < 0)
 		return NULL;
 
+	pi = kzalloc(sizeof(struct pi_adapter), GFP_KERNEL);
+	if (!pi) {
+		ida_free(&pata_parport_bus_dev_ids, id);
+		return NULL;
+	}
+
 	/* set up pi->dev before pi_probe_unit() so it can use dev_printk() */
 	pi->dev.parent = &pata_parport_bus;
 	pi->dev.bus = &pata_parport_bus_type;
 	pi->dev.driver = &pr->driver;
 	pi->dev.release = pata_parport_dev_release;
-	id = ida_alloc(&pata_parport_bus_dev_ids, GFP_KERNEL);
-	if (id < 0)
-		return NULL; /* pata_parport_dev_release will do kfree(pi) */
 	pi->dev.id = id;
 	dev_set_name(&pi->dev, "pata_parport.%u", pi->dev.id);
 	if (device_register(&pi->dev)) {
 		put_device(&pi->dev);
-		goto out_ida_free;
+		/* pata_parport_dev_release will do ida_free(dev->id) and kfree(pi) */
+		return NULL;
 	}
 
 	pi->proto = pr;
@@ -464,8 +469,7 @@ static struct pi_adapter *pi_init_one(struct parport *parport,
 	pi->port = parport->base;
 
 	par_cb.private = pi;
-	pi->pardev = parport_register_dev_model(parport, DRV_NAME, &par_cb,
+	pi->pardev = parport_register_dev_model(parport, DRV_NAME, &par_cb, id);
-						pi->dev.id);
 	if (!pi->pardev)
 		goto out_module_put;
 
@@ -487,12 +491,13 @@ static struct pi_adapter *pi_init_one(struct parport *parport,
 
 	pi_connect(pi);
 	if (ata_host_activate(host, 0, NULL, 0, &pata_parport_sht))
-		goto out_unreg_parport;
+		goto out_disconnect;
 
 	return pi;
 
-out_unreg_parport:
+out_disconnect:
 	pi_disconnect(pi);
+out_unreg_parport:
 	parport_unregister_device(pi->pardev);
 	if (pi->proto->release_proto)
 		pi->proto->release_proto(pi);
@@ -500,8 +505,7 @@ static struct pi_adapter *pi_init_one(struct parport *parport,
 	module_put(pi->proto->owner);
 out_unreg_dev:
 	device_unregister(&pi->dev);
-out_ida_free:
+	/* pata_parport_dev_release will do ida_free(dev->id) and kfree(pi) */
-	ida_free(&pata_parport_bus_dev_ids, pi->dev.id);
 	return NULL;
 }
 
@@ -626,8 +630,7 @@ static void pi_remove_one(struct device *dev)
 	pi_disconnect(pi);
 	pi_release(pi);
 	device_unregister(dev);
-	ida_free(&pata_parport_bus_dev_ids, dev->id);
+	/* pata_parport_dev_release will do ida_free(dev->id) and kfree(pi) */
-	/* pata_parport_dev_release will do kfree(pi) */
 }
 
 static ssize_t delete_device_store(struct bus_type *bus, const char *buf,
@@ -643,6 +646,7 @@ static ssize_t delete_device_store(struct bus_type *bus, const char *buf,
 	}
 
 	pi_remove_one(dev);
+	put_device(dev);
 	mutex_unlock(&pi_mutex);
 
 	return count;

drivers/block/loop.c

@@ -1859,35 +1859,44 @@ static blk_status_t loop_queue_rq(struct blk_mq_hw_ctx *hctx,
 
 static void loop_handle_cmd(struct loop_cmd *cmd)
 {
+	struct cgroup_subsys_state *cmd_blkcg_css = cmd->blkcg_css;
+	struct cgroup_subsys_state *cmd_memcg_css = cmd->memcg_css;
 	struct request *rq = blk_mq_rq_from_pdu(cmd);
 	const bool write = op_is_write(req_op(rq));
 	struct loop_device *lo = rq->q->queuedata;
 	int ret = 0;
 	struct mem_cgroup *old_memcg = NULL;
+	const bool use_aio = cmd->use_aio;
 
 	if (write && (lo->lo_flags & LO_FLAGS_READ_ONLY)) {
 		ret = -EIO;
 		goto failed;
 	}
 
-	if (cmd->blkcg_css)
+	if (cmd_blkcg_css)
-		kthread_associate_blkcg(cmd->blkcg_css);
+		kthread_associate_blkcg(cmd_blkcg_css);
-	if (cmd->memcg_css)
+	if (cmd_memcg_css)
 		old_memcg = set_active_memcg(
-			mem_cgroup_from_css(cmd->memcg_css));
+			mem_cgroup_from_css(cmd_memcg_css));
 
+	/*
+	 * do_req_filebacked() may call blk_mq_complete_request() synchronously
+	 * or asynchronously if using aio. Hence, do not touch 'cmd' after
+	 * do_req_filebacked() has returned unless we are sure that 'cmd' has
+	 * not yet been completed.
+	 */
 	ret = do_req_filebacked(lo, rq);
 
-	if (cmd->blkcg_css)
+	if (cmd_blkcg_css)
 		kthread_associate_blkcg(NULL);
 
-	if (cmd->memcg_css) {
+	if (cmd_memcg_css) {
 		set_active_memcg(old_memcg);
-		css_put(cmd->memcg_css);
+		css_put(cmd_memcg_css);
 	}
  failed:
 	/* complete non-aio request */
-	if (!cmd->use_aio || ret) {
+	if (!use_aio || ret) {
 		if (ret == -EOPNOTSUPP)
 			cmd->ret = ret;
 		else

drivers/block/null_blk/main.c

@@ -1413,7 +1413,6 @@ static inline void nullb_complete_cmd(struct nullb_cmd *cmd)
 	case NULL_IRQ_SOFTIRQ:
 		switch (cmd->nq->dev->queue_mode) {
 		case NULL_Q_MQ:
-			if (likely(!blk_should_fake_timeout(cmd->rq->q)))
 			blk_mq_complete_request(cmd->rq);
 			break;
 		case NULL_Q_BIO:
@@ -1660,10 +1659,11 @@ static enum blk_eh_timer_return null_timeout_rq(struct request *rq)
 static blk_status_t null_queue_rq(struct blk_mq_hw_ctx *hctx,
 				  const struct blk_mq_queue_data *bd)
 {
-	struct nullb_cmd *cmd = blk_mq_rq_to_pdu(bd->rq);
+	struct request *rq = bd->rq;
+	struct nullb_cmd *cmd = blk_mq_rq_to_pdu(rq);
 	struct nullb_queue *nq = hctx->driver_data;
-	sector_t nr_sectors = blk_rq_sectors(bd->rq);
+	sector_t nr_sectors = blk_rq_sectors(rq);
-	sector_t sector = blk_rq_pos(bd->rq);
+	sector_t sector = blk_rq_pos(rq);
 	const bool is_poll = hctx->type == HCTX_TYPE_POLL;
 
 	might_sleep_if(hctx->flags & BLK_MQ_F_BLOCKING);
@@ -1672,14 +1672,15 @@ static blk_status_t null_queue_rq(struct blk_mq_hw_ctx *hctx,
 		hrtimer_init(&cmd->timer, CLOCK_MONOTONIC, HRTIMER_MODE_REL);
 		cmd->timer.function = null_cmd_timer_expired;
 	}
-	cmd->rq = bd->rq;
+	cmd->rq = rq;
 	cmd->error = BLK_STS_OK;
 	cmd->nq = nq;
-	cmd->fake_timeout = should_timeout_request(bd->rq);
+	cmd->fake_timeout = should_timeout_request(rq) ||
+		blk_should_fake_timeout(rq->q);
 
-	blk_mq_start_request(bd->rq);
+	blk_mq_start_request(rq);
 
-	if (should_requeue_request(bd->rq)) {
+	if (should_requeue_request(rq)) {
 		/*
 		 * Alternate between hitting the core BUSY path, and the
 		 * driver driven requeue path
@@ -1687,22 +1688,20 @@ static blk_status_t null_queue_rq(struct blk_mq_hw_ctx *hctx,
 		nq->requeue_selection++;
 		if (nq->requeue_selection & 1)
 			return BLK_STS_RESOURCE;
-		else {
+		blk_mq_requeue_request(rq, true);
-			blk_mq_requeue_request(bd->rq, true);
 		return BLK_STS_OK;
 	}
-	}
 
 	if (is_poll) {
 		spin_lock(&nq->poll_lock);
-		list_add_tail(&bd->rq->queuelist, &nq->poll_list);
+		list_add_tail(&rq->queuelist, &nq->poll_list);
 		spin_unlock(&nq->poll_lock);
 		return BLK_STS_OK;
 	}
 	if (cmd->fake_timeout)
 		return BLK_STS_OK;
 
-	return null_handle_cmd(cmd, sector, nr_sectors, req_op(bd->rq));
+	return null_handle_cmd(cmd, sector, nr_sectors, req_op(rq));
 }
 
 static void cleanup_queue(struct nullb_queue *nq)

drivers/block/sunvdc.c

@@ -972,6 +972,8 @@ static int vdc_port_probe(struct vio_dev *vdev, const struct vio_device_id *id)
 	print_version();
 
 	hp = mdesc_grab();
+	if (!hp)
+		return -ENODEV;
 
 	err = -ENODEV;
 	if ((vdev->dev_no << PARTITION_SHIFT) & ~(u64)MINORMASK) {