Backmerge tag 'v5.13-rc7' into drm-next

Backmerge Linux 5.13-rc7 to make some pulls from later bases apply, and to bake in the conflicts so far.
2026-04-30 13:48:59 -07:00 · 2021-06-23 10:07:48 +10:00
parent d472b36efb 13311e7425
commit f45fbbb6d5
1141 changed files with 13317 additions and 5783 deletions
@@ -109,8 +109,8 @@ ForEachMacros:
  - 'css_for_each_child'
  - 'css_for_each_descendant_post'
  - 'css_for_each_descendant_pre'
-  - 'cxl_for_each_cmd'
  - 'device_for_each_child_node'
+  - 'displayid_iter_for_each'
  - 'dma_fence_chain_for_each'
  - 'do_for_each_ftrace_op'
  - 'drm_atomic_crtc_for_each_plane'
@@ -136,6 +136,7 @@ ForEachMacros:
  - 'drm_mm_for_each_node_in_range'
  - 'drm_mm_for_each_node_safe'
  - 'flow_action_for_each'
+  - 'for_each_acpi_dev_match'
  - 'for_each_active_dev_scope'
  - 'for_each_active_drhd_unit'
  - 'for_each_active_iommu'
@@ -171,7 +172,6 @@ ForEachMacros:
  - 'for_each_dapm_widgets'
  - 'for_each_dev_addr'
  - 'for_each_dev_scope'
-  - 'for_each_displayid_db'
  - 'for_each_dma_cap_mask'
  - 'for_each_dpcm_be'
  - 'for_each_dpcm_be_rollback'
@@ -179,6 +179,7 @@ ForEachMacros:
  - 'for_each_dpcm_fe'
  - 'for_each_drhd_unit'
  - 'for_each_dss_dev'
+  - 'for_each_dtpm_table'
  - 'for_each_efi_memory_desc'
  - 'for_each_efi_memory_desc_in_map'
  - 'for_each_element'
@@ -215,6 +216,7 @@ ForEachMacros:
  - 'for_each_migratetype_order'
  - 'for_each_msi_entry'
  - 'for_each_msi_entry_safe'
+  - 'for_each_msi_vector'
  - 'for_each_net'
  - 'for_each_net_continue_reverse'
  - 'for_each_netdev'
@@ -270,6 +272,12 @@ ForEachMacros:
  - 'for_each_prime_number_from'
  - 'for_each_process'
  - 'for_each_process_thread'
+  - 'for_each_prop_codec_conf'
+  - 'for_each_prop_dai_codec'
+  - 'for_each_prop_dai_cpu'
+  - 'for_each_prop_dlc_codecs'
+  - 'for_each_prop_dlc_cpus'
+  - 'for_each_prop_dlc_platforms'
  - 'for_each_property_of_node'
  - 'for_each_registered_fb'
  - 'for_each_requested_gpio'
@@ -430,6 +438,7 @@ ForEachMacros:
  - 'queue_for_each_hw_ctx'
  - 'radix_tree_for_each_slot'
  - 'radix_tree_for_each_tagged'
+  - 'rb_for_each'
  - 'rbtree_postorder_for_each_entry_safe'
  - 'rdma_for_each_block'
  - 'rdma_for_each_port'
@@ -243,6 +243,9 @@ Maxime Ripard <mripard@kernel.org> <maxime.ripard@free-electrons.com>
 Mayuresh Janorkar <mayur@ti.com>
 Michael Buesch <m@bues.ch>
 Michel Dänzer <michel@tungstengraphics.com>
+Michel Lespinasse <michel@lespinasse.org>
+Michel Lespinasse <michel@lespinasse.org> <walken@google.com>
+Michel Lespinasse <michel@lespinasse.org> <walken@zoy.org>
 Miguel Ojeda <ojeda@kernel.org> <miguel.ojeda.sandonis@gmail.com>
 Mike Rapoport <rppt@kernel.org> <mike@compulab.co.il>
 Mike Rapoport <rppt@kernel.org> <mike.rapoport@gmail.com>
@@ -1458,11 +1458,22 @@ unprivileged_bpf_disabled
 =========================

 Writing 1 to this entry will disable unprivileged calls to ``bpf()``;
-once disabled, calling ``bpf()`` without ``CAP_SYS_ADMIN`` will return
-``-EPERM``.
+once disabled, calling ``bpf()`` without ``CAP_SYS_ADMIN`` or ``CAP_BPF``
+will return ``-EPERM``. Once set to 1, this can't be cleared from the
+running kernel anymore.

-Once set, this can't be cleared.
+Writing 2 to this entry will also disable unprivileged calls to ``bpf()``,
+however, an admin can still change this setting later on, if needed, by
+writing 0 or 1 to this entry.

+If ``BPF_UNPRIV_DEFAULT_OFF`` is enabled in the kernel config, then this
+entry will default to 2 instead of 0.
+
+= =============================================================
+0 Unprivileged calls to ``bpf()`` are enabled
+1 Unprivileged calls to ``bpf()`` are disabled without recovery
+2 Unprivileged calls to ``bpf()`` are disabled
+= =============================================================

 watchdog
 ========
@@ -149,6 +149,17 @@ properties:
    maxItems: 6
    $ref: /schemas/types.yaml#/definitions/uint32-array

+  sink-vdos-v1:
+    description: An array of u32 with each entry, a Vendor Defined Message Object (VDO),
+      providing additional information corresponding to the product, the detailed bit
+      definitions and the order of each VDO can be found in
+      "USB Power Delivery Specification Revision 2.0, Version 1.3" chapter 6.4.4.3.1 Discover
+      Identity. User can specify the VDO array via VDO_IDH/_CERT/_PRODUCT/_CABLE/_AMA defined in
+      dt-bindings/usb/pd.h.
+    minItems: 3
+    maxItems: 6
+    $ref: /schemas/types.yaml#/definitions/uint32-array
+
  op-sink-microwatt:
    description: Sink required operating power in microwatt, if source can't
      offer the power, Capability Mismatch is set. Required for power sink and
@@ -207,6 +218,10 @@ properties:
      SNK_READY for non-pd link.
    type: boolean

+dependencies:
+  sink-vdos-v1: [ 'sink-vdos' ]
+  sink-vdos: [ 'sink-vdos-v1' ]
+
 required:
  - compatible

@@ -49,7 +49,7 @@ examples:
        #size-cells = <0>;

        adc@48 {
-            comatible = "ti,ads7828";
+            compatible = "ti,ads7828";
            reg = <0x48>;
            vref-supply = <&vref>;
            ti,differential-input;
@@ -46,6 +46,13 @@ properties:
    description: |
      I2C bus timeout in microseconds

+  fsl,i2c-erratum-a004447:
+    $ref: /schemas/types.yaml#/definitions/flag
+    description: |
+      Indicates the presence of QorIQ erratum A-004447, which
+      says that the standard i2c recovery scheme mechanism does
+      not work and an alternate implementation is needed.
+
 required:
  - compatible
  - reg
@@ -67,9 +67,7 @@ properties:
    maxItems: 1

  clock-names:
-    maxItems: 1
-    items:
-      - const: fck
+    const: fck

  resets:
    maxItems: 1
@@ -10,7 +10,7 @@ allOf:
  - $ref: ethernet-controller.yaml#

 maintainers:
-  - Sergei Shtylyov <sergei.shtylyov@cogentembedded.com>
+  - Sergei Shtylyov <sergei.shtylyov@gmail.com>

 properties:
  compatible:
@@ -57,7 +57,7 @@ patternProperties:
          rate

      sound-dai:
-        $ref: /schemas/types.yaml#/definitions/phandle
+        $ref: /schemas/types.yaml#/definitions/phandle-array
        description: phandle of the CPU DAI

    patternProperties:
@@ -71,7 +71,7 @@ patternProperties:

        properties:
          sound-dai:
-            $ref: /schemas/types.yaml#/definitions/phandle
+            $ref: /schemas/types.yaml#/definitions/phandle-array
            description: phandle of the codec DAI

        required:
@@ -72,7 +72,7 @@ examples:

            mux-controls = <&mux>;

-            spi-flash@0 {
+            flash@0 {
                compatible = "jedec,spi-nor";
                reg = <0>;
                spi-max-frequency = <40000000>;
@@ -123,6 +123,8 @@ are in ``drivers/usb/common/common.c``.
 In addition, some functions useful for creating debugging output are
 defined in ``drivers/usb/common/debug.c``.

+.. _usb_header:
+
 Host-Side Data Types and Macros
 ===============================

@@ -58,6 +58,6 @@ RISC-V Linux Kernel SV39
                                                              |
  ____________________________________________________________|____________________________________________________________
                    |            |                  |         |
-   ffffffff00000000 |   -4    GB | ffffffff7fffffff |    2 GB | modules
-   ffffffff80000000 |   -2    GB | ffffffffffffffff |    2 GB | kernel, BPF
+   ffffffff00000000 |   -4    GB | ffffffff7fffffff |    2 GB | modules, BPF
+   ffffffff80000000 |   -2    GB | ffffffffffffffff |    2 GB | kernel
  __________________|____________|__________________|_________|____________________________________________________________
@@ -250,14 +250,14 @@ Users can read via ``ioctl(SECCOMP_IOCTL_NOTIF_RECV)``  (or ``poll()``) on a
 seccomp notification fd to receive a ``struct seccomp_notif``, which contains
 five members: the input length of the structure, a unique-per-filter ``id``,
 the ``pid`` of the task which triggered this request (which may be 0 if the
-task is in a pid ns not visible from the listener's pid namespace), a ``flags``
-member which for now only has ``SECCOMP_NOTIF_FLAG_SIGNALED``, representing
-whether or not the notification is a result of a non-fatal signal, and the
-``data`` passed to seccomp. Userspace can then make a decision based on this
-information about what to do, and ``ioctl(SECCOMP_IOCTL_NOTIF_SEND)`` a
-response, indicating what should be returned to userspace. The ``id`` member of
-``struct seccomp_notif_resp`` should be the same ``id`` as in ``struct
-seccomp_notif``.
+task is in a pid ns not visible from the listener's pid namespace). The
+notification also contains the ``data`` passed to seccomp, and a filters flag.
+The structure should be zeroed out prior to calling the ioctl.
+
+Userspace can then make a decision based on this information about what to do,
+and ``ioctl(SECCOMP_IOCTL_NOTIF_SEND)`` a response, indicating what should be
+returned to userspace. The ``id`` member of ``struct seccomp_notif_resp`` should
+be the same ``id`` as in ``struct seccomp_notif``.

 It is worth noting that ``struct seccomp_data`` contains the values of register
 arguments to the syscall, but does not contain pointers to memory. The task's
@@ -171,8 +171,8 @@ Shadow pages contain the following information:
    shadow pages) so role.quadrant takes values in the range 0..3.  Each
    quadrant maps 1GB virtual address space.
  role.access:
-    Inherited guest access permissions in the form uwx.  Note execute
-    permission is positive, not negative.
+    Inherited guest access permissions from the parent ptes in the form uwx.
+    Note execute permission is positive, not negative.
  role.invalid:
    The page is invalid and should not be used.  It is a root page that is
    currently pinned (by a cpu hardware register pointing to it); once it is
@@ -118,10 +118,12 @@ KVM_REQ_MMU_RELOAD
  necessary to inform each VCPU to completely refresh the tables.  This
  request is used for that.

-KVM_REQ_PENDING_TIMER
+KVM_REQ_UNBLOCK

-  This request may be made from a timer handler run on the host on behalf
-  of a VCPU.  It informs the VCPU thread to inject a timer interrupt.
+  This request informs the vCPU to exit kvm_vcpu_block.  It is used for
+  example from timer handlers that run on the host on behalf of a vCPU,
+  or in order to update the interrupt routing and ensure that assigned
+  devices will wake up the vCPU.

 KVM_REQ_UNHALT

@@ -181,7 +181,7 @@ SLUB Debug output
 Here is a sample of slub debug output::

 ====================================================================
- BUG kmalloc-8: Redzone overwritten
+ BUG kmalloc-8: Right Redzone overwritten
 --------------------------------------------------------------------

 INFO: 0xc90f6d28-0xc90f6d2b. First byte 0x00 instead of 0xcc
@@ -189,10 +189,10 @@ Here is a sample of slub debug output::
 INFO: Object 0xc90f6d20 @offset=3360 fp=0xc90f6d58
 INFO: Allocated in get_modalias+0x61/0xf5 age=53 cpu=1 pid=554

- Bytes b4 0xc90f6d10:  00 00 00 00 00 00 00 00 5a 5a 5a 5a 5a 5a 5a 5a ........ZZZZZZZZ
-   Object 0xc90f6d20:  31 30 31 39 2e 30 30 35                         1019.005
-  Redzone 0xc90f6d28:  00 cc cc cc                                     .
-  Padding 0xc90f6d50:  5a 5a 5a 5a 5a 5a 5a 5a                         ZZZZZZZZ
+ Bytes b4 (0xc90f6d10): 00 00 00 00 00 00 00 00 5a 5a 5a 5a 5a 5a 5a 5a ........ZZZZZZZZ
+ Object   (0xc90f6d20): 31 30 31 39 2e 30 30 35                         1019.005
+ Redzone  (0xc90f6d28): 00 cc cc cc                                     .
+ Padding  (0xc90f6d50): 5a 5a 5a 5a 5a 5a 5a 5a                         ZZZZZZZZ

   [<c010523d>] dump_trace+0x63/0x1eb
   [<c01053df>] show_trace_log_lvl+0x1a/0x2f
@@ -3877,6 +3877,7 @@ L:	linux-btrfs@vger.kernel.org
 S:	Maintained
 W:	http://btrfs.wiki.kernel.org/
 Q:	http://patchwork.kernel.org/project/linux-btrfs/list/
+C:	irc://irc.libera.chat/btrfs
 T:	git git://git.kernel.org/pub/scm/linux/kernel/git/kdave/linux.git
 F:	Documentation/filesystems/btrfs.rst
 F:	fs/btrfs/
@@ -4138,6 +4139,14 @@ S:	Odd Fixes
 F:	Documentation/devicetree/bindings/arm/cavium-thunder2.txt
 F:	arch/arm64/boot/dts/cavium/thunder2-99xx*

+CBS/ETF/TAPRIO QDISCS
+M:	Vinicius Costa Gomes <vinicius.gomes@intel.com>
+S:	Maintained
+L:	netdev@vger.kernel.org
+F:	net/sched/sch_cbs.c
+F:	net/sched/sch_etf.c
+F:	net/sched/sch_taprio.c
+
 CC2520 IEEE-802.15.4 RADIO DRIVER
 M:	Varka Bhadram <varkabhadram@gmail.com>
 L:	linux-wpan@vger.kernel.org
@@ -5569,7 +5578,6 @@ F:	drivers/soc/fsl/dpio

 DPAA2 ETHERNET DRIVER
 M:	Ioana Ciornei <ioana.ciornei@nxp.com>
-M:	Ioana Radulescu <ruxandra.radulescu@nxp.com>
 L:	netdev@vger.kernel.org
 S:	Maintained
 F:	Documentation/networking/device_drivers/ethernet/freescale/dpaa2/ethernet-driver.rst
@@ -6953,6 +6961,7 @@ F:	net/core/failover.c
 FANOTIFY
 M:	Jan Kara <jack@suse.cz>
 R:	Amir Goldstein <amir73il@gmail.com>
+R:	Matthew Bobrowski <repnop@google.com>
 L:	linux-fsdevel@vger.kernel.org
 S:	Maintained
 F:	fs/notify/fanotify/
@@ -12704,9 +12713,9 @@ F:	drivers/rtc/rtc-ntxec.c
 F:	include/linux/mfd/ntxec.h

 NETRONOME ETHERNET DRIVERS
-M:	Simon Horman <simon.horman@netronome.com>
+M:	Simon Horman <simon.horman@corigine.com>
 R:	Jakub Kicinski <kuba@kernel.org>
-L:	oss-drivers@netronome.com
+L:	oss-drivers@corigine.com
 S:	Maintained
 F:	drivers/net/ethernet/netronome/

@@ -12733,7 +12742,6 @@ M:	"David S. Miller" <davem@davemloft.net>
 M:	Jakub Kicinski <kuba@kernel.org>
 L:	netdev@vger.kernel.org
 S:	Maintained
-W:	http://www.linuxfoundation.org/en/Net
 Q:	https://patchwork.kernel.org/project/netdevbpf/list/
 T:	git git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net.git
 T:	git git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net-next.git
@@ -12778,7 +12786,6 @@ M:	"David S. Miller" <davem@davemloft.net>
 M:	Jakub Kicinski <kuba@kernel.org>
 L:	netdev@vger.kernel.org
 S:	Maintained
-W:	http://www.linuxfoundation.org/en/Net
 Q:	https://patchwork.kernel.org/project/netdevbpf/list/
 B:	mailto:netdev@vger.kernel.org
 T:	git git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net.git
@@ -12920,8 +12927,10 @@ F:	include/uapi/linux/nexthop.h
 F:	net/ipv4/nexthop.c

 NFC SUBSYSTEM
+M:	Krzysztof Kozlowski <krzysztof.kozlowski@canonical.com>
+L:	linux-nfc@lists.01.org (subscribers-only)
 L:	netdev@vger.kernel.org
-S:	Orphan
+S:	Maintained
 F:	Documentation/devicetree/bindings/net/nfc/
 F:	drivers/nfc/
 F:	include/linux/platform_data/nfcmrvl.h
@@ -12932,7 +12941,7 @@ F:	net/nfc/
 NFC VIRTUAL NCI DEVICE DRIVER
 M:	Bongsu Jeon <bongsu.jeon@samsung.com>
 L:	netdev@vger.kernel.org
-L:	linux-nfc@lists.01.org (moderated for non-subscribers)
+L:	linux-nfc@lists.01.org (subscribers-only)
 S:	Supported
 F:	drivers/nfc/virtual_ncidev.c
 F:	tools/testing/selftests/nci/
@@ -13229,9 +13238,8 @@ F:	Documentation/devicetree/bindings/sound/tfa9879.txt
 F:	sound/soc/codecs/tfa9879*

 NXP-NCI NFC DRIVER
-M:	Clément Perrochaud <clement.perrochaud@effinnov.com>
 R:	Charles Gorand <charles.gorand@effinnov.com>
-L:	linux-nfc@lists.01.org (moderated for non-subscribers)
+L:	linux-nfc@lists.01.org (subscribers-only)
 S:	Supported
 F:	drivers/nfc/nxp-nci

@@ -14134,6 +14142,7 @@ F:	drivers/pci/controller/pci-v3-semi.c
 PCI ENDPOINT SUBSYSTEM
 M:	Kishon Vijay Abraham I <kishon@ti.com>
 M:	Lorenzo Pieralisi <lorenzo.pieralisi@arm.com>
+R:	Krzysztof Wilczyński <kw@linux.com>
 L:	linux-pci@vger.kernel.org
 S:	Supported
 F:	Documentation/PCI/endpoint/*
@@ -14182,6 +14191,7 @@ F:	drivers/pci/controller/pci-xgene-msi.c
 PCI NATIVE HOST BRIDGE AND ENDPOINT DRIVERS
 M:	Lorenzo Pieralisi <lorenzo.pieralisi@arm.com>
 R:	Rob Herring <robh@kernel.org>
+R:	Krzysztof Wilczyński <kw@linux.com>
 L:	linux-pci@vger.kernel.org
 S:	Supported
 Q:	http://patchwork.ozlabs.org/project/linux-pci/list/
@@ -14341,10 +14351,12 @@ PER-CPU MEMORY ALLOCATOR
 M:	Dennis Zhou <dennis@kernel.org>
 M:	Tejun Heo <tj@kernel.org>
 M:	Christoph Lameter <cl@linux.com>
+L:	linux-mm@kvack.org
 S:	Maintained
 T:	git git://git.kernel.org/pub/scm/linux/kernel/git/dennis/percpu.git
 F:	arch/*/include/asm/percpu.h
 F:	include/linux/percpu*.h
+F:	lib/percpu*.c
 F:	mm/percpu*.c

 PER-TASK DELAY ACCOUNTING
@@ -15969,6 +15981,7 @@ S390 IUCV NETWORK LAYER
 M:	Julian Wiedmann <jwi@linux.ibm.com>
 M:	Karsten Graul <kgraul@linux.ibm.com>
 L:	linux-s390@vger.kernel.org
+L:	netdev@vger.kernel.org
 S:	Supported
 W:	http://www.ibm.com/developerworks/linux/linux390/
 F:	drivers/s390/net/*iucv*
@@ -15979,6 +15992,7 @@ S390 NETWORK DRIVERS
 M:	Julian Wiedmann <jwi@linux.ibm.com>
 M:	Karsten Graul <kgraul@linux.ibm.com>
 L:	linux-s390@vger.kernel.org
+L:	netdev@vger.kernel.org
 S:	Supported
 W:	http://www.ibm.com/developerworks/linux/linux390/
 F:	drivers/s390/net/
@@ -16157,7 +16171,7 @@ F:	include/media/drv-intf/s3c_camif.h
 SAMSUNG S3FWRN5 NFC DRIVER
 M:	Krzysztof Kozlowski <krzysztof.kozlowski@canonical.com>
 M:	Krzysztof Opasiak <k.opasiak@samsung.com>
-L:	linux-nfc@lists.01.org (moderated for non-subscribers)
+L:	linux-nfc@lists.01.org (subscribers-only)
 S:	Maintained
 F:	Documentation/devicetree/bindings/net/nfc/samsung,s3fwrn5.yaml
 F:	drivers/nfc/s3fwrn5
@@ -16570,6 +16584,7 @@ F:	drivers/misc/sgi-xp/

 SHARED MEMORY COMMUNICATIONS (SMC) SOCKETS
 M:	Karsten Graul <kgraul@linux.ibm.com>
+M:	Guvenc Gulce <guvenc@linux.ibm.com>
 L:	linux-s390@vger.kernel.org
 S:	Supported
 W:	http://www.ibm.com/developerworks/linux/linux390/
@@ -17328,6 +17343,12 @@ L:	linux-i2c@vger.kernel.org
 S:	Maintained
 F:	drivers/i2c/busses/i2c-stm32*

+ST STM32 SPI DRIVER
+M:	Alain Volmat <alain.volmat@foss.st.com>
+L:	linux-spi@vger.kernel.org
+S:	Maintained
+F:	drivers/spi/spi-stm32.c
+
 ST STPDDC60 DRIVER
 M:	Daniel Nilsson <daniel.nilsson@flex.com>
 L:	linux-hwmon@vger.kernel.org
@@ -17686,7 +17707,6 @@ R:	Mika Westerberg <mika.westerberg@linux.intel.com>
 L:	linux-i2c@vger.kernel.org
 S:	Maintained
 F:	drivers/i2c/busses/i2c-designware-*
-F:	include/linux/platform_data/i2c-designware.h

 SYNOPSYS DESIGNWARE MMC/SD/SDIO DRIVER
 M:	Jaehoon Chung <jh80.chung@samsung.com>
@@ -18342,7 +18362,7 @@ F:	sound/soc/codecs/tas571x*
 TI TRF7970A NFC DRIVER
 M:	Mark Greer <mgreer@animalcreek.com>
 L:	linux-wireless@vger.kernel.org
-L:	linux-nfc@lists.01.org (moderated for non-subscribers)
+L:	linux-nfc@lists.01.org (subscribers-only)
 S:	Supported
 F:	Documentation/devicetree/bindings/net/nfc/trf7970a.txt
 F:	drivers/nfc/trf7970a.c
@@ -18878,6 +18898,13 @@ S:	Maintained
 F:	drivers/usb/host/isp116x*
 F:	include/linux/usb/isp116x.h

+USB ISP1760 DRIVER
+M:	Rui Miguel Silva <rui.silva@linaro.org>
+L:	linux-usb@vger.kernel.org
+S:	Maintained
+F:	drivers/usb/isp1760/*
+F:	Documentation/devicetree/bindings/usb/nxp,isp1760.yaml
+
 USB LAN78XX ETHERNET DRIVER
 M:	Woojung Huh <woojung.huh@microchip.com>
 M:	UNGLinuxDriver@microchip.com
@@ -20022,6 +20049,7 @@ F:	arch/x86/xen/*swiotlb*
 F:	drivers/xen/*swiotlb*

 XFS FILESYSTEM
+C:	irc://irc.oftc.net/xfs
 M:	Darrick J. Wong <djwong@kernel.org>
 M:	linux-xfs@vger.kernel.org
 L:	linux-xfs@vger.kernel.org
@@ -2,8 +2,8 @@
 VERSION = 5
 PATCHLEVEL = 13
 SUBLEVEL = 0
-EXTRAVERSION = -rc3
-NAME = Frozen Wasteland
+EXTRAVERSION = -rc7
+NAME = Opossums on Parade

 # *DOCUMENTATION*
 # To see a list of typical targets execute "make help"
@@ -928,6 +928,14 @@ CC_FLAGS_LTO	+= -fvisibility=hidden

 # Limit inlining across translation units to reduce binary size
 KBUILD_LDFLAGS += -mllvm -import-instr-limit=5
+
+# Check for frame size exceeding threshold during prolog/epilog insertion
+# when using lld < 13.0.0.
+ifneq ($(CONFIG_FRAME_WARN),0)
+ifeq ($(shell test $(CONFIG_LLD_VERSION) -lt 130000; echo $$?),0)
+KBUILD_LDFLAGS	+= -plugin-opt=-warn-stack-size=$(CONFIG_FRAME_WARN)
+endif
+endif
 endif

 ifdef CONFIG_LTO
@@ -18,6 +18,7 @@
 */
 struct sigcontext {
 	struct user_regs_struct regs;
+	struct user_regs_arcv2 v2abi;
 };

 #endif /* _ASM_ARC_SIGCONTEXT_H */
@@ -61,6 +61,41 @@ struct rt_sigframe {
 	unsigned int sigret_magic;
 };

+static int save_arcv2_regs(struct sigcontext *mctx, struct pt_regs *regs)
+{
+	int err = 0;
+#ifndef CONFIG_ISA_ARCOMPACT
+	struct user_regs_arcv2 v2abi;
+
+	v2abi.r30 = regs->r30;
+#ifdef CONFIG_ARC_HAS_ACCL_REGS
+	v2abi.r58 = regs->r58;
+	v2abi.r59 = regs->r59;
+#else
+	v2abi.r58 = v2abi.r59 = 0;
+#endif
+	err = __copy_to_user(&mctx->v2abi, &v2abi, sizeof(v2abi));
+#endif
+	return err;
+}
+
+static int restore_arcv2_regs(struct sigcontext *mctx, struct pt_regs *regs)
+{
+	int err = 0;
+#ifndef CONFIG_ISA_ARCOMPACT
+	struct user_regs_arcv2 v2abi;
+
+	err = __copy_from_user(&v2abi, &mctx->v2abi, sizeof(v2abi));
+
+	regs->r30 = v2abi.r30;
+#ifdef CONFIG_ARC_HAS_ACCL_REGS
+	regs->r58 = v2abi.r58;
+	regs->r59 = v2abi.r59;
+#endif
+#endif
+	return err;
+}
+
 static int
 stash_usr_regs(struct rt_sigframe __user *sf, struct pt_regs *regs,
 	       sigset_t *set)
@@ -94,6 +129,10 @@ stash_usr_regs(struct rt_sigframe __user *sf, struct pt_regs *regs,

 	err = __copy_to_user(&(sf->uc.uc_mcontext.regs.scratch), &uregs.scratch,
 			     sizeof(sf->uc.uc_mcontext.regs.scratch));
+
+	if (is_isa_arcv2())
+		err |= save_arcv2_regs(&(sf->uc.uc_mcontext), regs);
+
 	err |= __copy_to_user(&sf->uc.uc_sigmask, set, sizeof(sigset_t));

 	return err ? -EFAULT : 0;
@@ -109,6 +148,10 @@ static int restore_usr_regs(struct pt_regs *regs, struct rt_sigframe __user *sf)
 	err |= __copy_from_user(&uregs.scratch,
 				&(sf->uc.uc_mcontext.regs.scratch),
 				sizeof(sf->uc.uc_mcontext.regs.scratch));
+
+	if (is_isa_arcv2())
+		err |= restore_arcv2_regs(&(sf->uc.uc_mcontext), regs);
+
 	if (err)
 		return -EFAULT;

--- a/Show More
+++ b/Show More