Merge tag 'v5.10.115-rt67' into nilrt/master/5.10

Linux 5.10.115-rt67

[gratian: fixed minor IRQTF_* enum conflict between commit
	  7007edb ("irq: Add priority support to /proc/irq/../") and commit
	  e6e61aa ("genirq: Synchronize interrupt thread startup")]
Signed-off-by: Gratian Crisan <gratian.crisan@ni.com>

Author: gratian

Documentation/admin-guide/sysctl/kernel.rst

@@ -787,6 +787,7 @@ bit 1  print system memory info
 bit 2  print timer info
 bit 3  print locks info if ``CONFIG_LOCKDEP`` is on
 bit 4  print ftrace buffer
+bit 5  print all printk messages in buffer
 =====  ============================================
 
 So for example to print tasks and memory info on panic, user can::

Documentation/core-api/dma-attributes.rst

@@ -130,3 +130,11 @@ accesses to DMA buffers in both privileged "supervisor" and unprivileged
 subsystem that the buffer is fully accessible at the elevated privilege
 level (and ideally inaccessible or at least read-only at the
 lesser-privileged levels).
+
+DMA_ATTR_OVERWRITE
+------------------
+
+This is a hint to the DMA-mapping subsystem that the device is expected to
+overwrite the entire mapped size, thus the caller does not require any of the
+previous buffer contents to be preserved. This allows bounce-buffering
+implementations to optimise DMA_FROM_DEVICE transfers.

Documentation/devicetree/bindings/mtd/nand-controller.yaml

@@ -44,7 +44,7 @@ patternProperties:
     properties:
       reg:
         description:
-          Contains the native Ready/Busy IDs.
+          Contains the chip-select IDs.
 
       nand-ecc-mode:
         description:
@@ -174,6 +174,6 @@ examples:
         nand-ecc-mode = "soft";
         nand-ecc-algo = "bch";
 
-        /* controller specific properties */
+        /* NAND chip specific properties */
       };
     };

Documentation/devicetree/bindings/spi/spi-mxic.txt

@@ -8,11 +8,13 @@ Required properties:
 - reg: should contain 2 entries, one for the registers and one for the direct
        mapping area
 - reg-names: should contain "regs" and "dirmap"
-- interrupts: interrupt line connected to the SPI controller
 - clock-names: should contain "ps_clk", "send_clk" and "send_dly_clk"
 - clocks: should contain 3 entries for the "ps_clk", "send_clk" and
 	  "send_dly_clk" clocks
 
+Optional properties:
+- interrupts: interrupt line connected to the SPI controller
+
 Example:
 
 	spi@43c30000 {

Documentation/filesystems/ext4/attributes.rst

@@ -76,7 +76,7 @@ The beginning of an extended attribute block is in
      - Checksum of the extended attribute block.
    * - 0x14
      - \_\_u32
-     - h\_reserved[2]
+     - h\_reserved[3]
      - Zero.
 
 The checksum is calculated against the FS UUID, the 64-bit block number

Documentation/process/stable-kernel-rules.rst

@@ -168,7 +168,16 @@ Trees
  - The finalized and tagged releases of all stable kernels can be found
    in separate branches per version at:
 
-	https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux-stable.git
+	https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
+
+ - The release candidate of all stable kernel versions can be found at:
+
+        https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux-stable-rc.git/
+
+   .. warning::
+      The -stable-rc tree is a snapshot in time of the stable-queue tree and
+      will change frequently, hence will be rebased often. It should only be
+      used for testing purposes (e.g. to be consumed by CI systems).
 
 
 Review committee

Documentation/sound/hd-audio/models.rst

@@ -261,6 +261,10 @@ alc-sense-combo
 huawei-mbx-stereo
     Enable initialization verbs for Huawei MBX stereo speakers;
     might be risky, try this at your own risk
+alc298-samsung-headphone
+    Samsung laptops with ALC298
+alc256-samsung-headphone
+    Samsung laptops with ALC256
 
 ALC66x/67x/892
 ==============

Makefile

@@ -1,7 +1,7 @@
 # SPDX-License-Identifier: GPL-2.0
 VERSION = 5
 PATCHLEVEL = 10
-SUBLEVEL = 109
+SUBLEVEL = 115
 EXTRAVERSION =
 NAME = Dare mighty things
 

arch/arc/kernel/entry.S

@@ -199,6 +199,7 @@ tracesys_exit:
 	st  r0, [sp, PT_r0]     ; sys call return value in pt_regs
 
 	;POST Sys Call Ptrace Hook
+	mov r0, sp		; pt_regs needed
 	bl  @syscall_trace_exit
 	b   ret_from_exception ; NOT ret_from_system_call at is saves r0 which
 	; we'd done before calling post hook above

arch/arc/kernel/process.c

@@ -43,7 +43,7 @@ SYSCALL_DEFINE0(arc_gettls)
 	return task_thread_info(current)->thr_ptr;
 }
 
-SYSCALL_DEFINE3(arc_usr_cmpxchg, int *, uaddr, int, expected, int, new)
+SYSCALL_DEFINE3(arc_usr_cmpxchg, int __user *, uaddr, int, expected, int, new)
 {
 	struct pt_regs *regs = current_pt_regs();
 	u32 uval;