DLPX-90430 Azure kernel build failure in v4l2loopback dkms build

Documentation/ABI/testing/sysfs-bus-optee-devices

@@ -6,3 +6,12 @@ Description:
 		OP-TEE bus provides reference to registered drivers under this directory. The <uuid>
 		matches Trusted Application (TA) driver and corresponding TA in secure OS. Drivers
 		are free to create needed API under optee-ta-<uuid> directory.
+
+What:		/sys/bus/tee/devices/optee-ta-<uuid>/need_supplicant
+Date:		November 2023
+KernelVersion:	6.7
+Contact:	[email protected]
+Description:
+		Allows to distinguish whether an OP-TEE based TA/device requires user-space
+		tee-supplicant to function properly or not. This attribute will be present for
+		devices which depend on tee-supplicant to be running.

Documentation/admin-guide/kernel-parameters.txt

@@ -5743,8 +5743,10 @@
 			it if 0 is given (See Documentation/admin-guide/cgroup-v1/memory.rst)
 
 	swiotlb=	[ARM,IA-64,PPC,MIPS,X86]
-			Format: { <int> | force | noforce }
+			Format: { <int> [,<int>] | force | noforce }
 			<int> -- Number of I/O TLB slabs
+			<int> -- Second integer after comma. Number of swiotlb
+				 areas with their own lock. Must be power of 2.
 			force -- force using of bounce buffers even if they
 			         wouldn't be automatically used by the kernel
 			noforce -- Never use bounce buffers (for debugging)
@@ -5953,6 +5955,16 @@
 			first trust source as a backend which is initialized
 			successfully during iteration.
 
+	trusted.rng=	[KEYS]
+			Format: <string>
+			The RNG used to generate key material for trusted keys.
+			Can be one of:
+			- "kernel"
+			- the same value as trusted.source: "tpm" or "tee"
+			- "default"
+			If not specified, "default" is used. In this case,
+			the RNG's choice is left to each individual trust source.
+
 	tsc=		Disable clocksource stability checks for TSC.
 			Format: <string>
 			[x86] reliable: mark tsc clocksource as reliable, this

Documentation/admin-guide/sysctl/net.rst

@@ -31,18 +31,18 @@ see only some of them, depending on your kernel's configuration.
 
 Table : Subdirectories in /proc/sys/net
 
- ========= =================== = ========== ==================
+ ========= =================== = ========== ===================
  Directory Content               Directory  Content
- ========= =================== = ========== ==================
- 802       E802 protocol         mptcp     Multipath TCP
- appletalk Appletalk protocol    netfilter Network Filter
+ ========= =================== = ========== ===================
+ 802       E802 protocol         mptcp      Multipath TCP
+ appletalk Appletalk protocol    netfilter  Network Filter
  ax25      AX25                  netrom     NET/ROM
- bridge    Bridging              rose      X.25 PLP layer
- core      General parameter     tipc      TIPC
- ethernet  Ethernet protocol     unix      Unix domain sockets
- ipv4      IP version 4          x25       X.25 protocol
+ bridge    Bridging              rose       X.25 PLP layer
+ core      General parameter     tipc       TIPC
+ ethernet  Ethernet protocol     unix       Unix domain sockets
+ ipv4      IP version 4          x25        X.25 protocol
  ipv6      IP version 6
- ========= =================== = ========== ==================
+ ========= =================== = ========== ===================
 
 1. /proc/sys/net/core - Network core options
 ============================================

Documentation/arm64/silicon-errata.rst

@@ -172,6 +172,9 @@ stable kernels.
 +----------------+-----------------+-----------------+-----------------------------+
 | Hisilicon      | Hip08 SMMU PMCG | #162001800      | N/A                         |
 +----------------+-----------------+-----------------+-----------------------------+
+| Hisilicon      | Hip08 SMMU PMCG | #162001900      | N/A                         |
+|                | Hip09 SMMU PMCG |                 |                             |
++----------------+-----------------+-----------------+-----------------------------+
 +----------------+-----------------+-----------------+-----------------------------+
 | Qualcomm Tech. | Kryo/Falkor v1  | E1003           | QCOM_FALKOR_ERRATUM_1003    |
 +----------------+-----------------+-----------------+-----------------------------+

Documentation/devicetree/bindings/clock/xlnx,versal-clk.yaml

@@ -16,8 +16,6 @@ description: |
   reads required input clock frequencies from the devicetree and acts as clock
   provider for all clock consumers of PS clocks.
 
-select: false
-
 properties:
   compatible:
     const: xlnx,versal-clk

Documentation/networking/ip-sysctl.rst

@@ -999,6 +999,19 @@ tcp_rx_skb_cache - BOOLEAN
 
 	Default: 0 (disabled)
 
+tcp_pingpong_thresh - INTEGER
+	The number of estimated data replies sent for estimated incoming data
+	requests that must happen before TCP considers that a connection is a
+	"ping-pong" (request-response) connection for which delayed
+	acknowledgments can provide benefits.
+
+	This threshold is 1 by default, but some applications may need a higher
+	threshold for optimal performance.
+
+	Possible Values: 1 - 255
+
+	Default: 1
+
 UDP variables
 =============
 
@@ -2070,6 +2083,14 @@ accept_ra_min_hop_limit - INTEGER
 
 	Default: 1
 
+accept_ra_min_lft - INTEGER
+	Minimum acceptable lifetime value in Router Advertisement.
+
+	RA sections with a lifetime less than this value shall be
+	ignored. Zero lifetimes stay unaffected.
+
+	Default: 0
+
 accept_ra_pinfo - BOOLEAN
 	Learn Prefix Information in Router Advertisement.
 

Documentation/process/howto.rst

@@ -36,7 +36,7 @@ experience, the following books are good for, if anything, reference:
  - "C:  A Reference Manual" by Harbison and Steele [Prentice Hall]
 
 The kernel is written using GNU C and the GNU toolchain.  While it
-adheres to the ISO C89 standard, it uses a number of extensions that are
+adheres to the ISO C11 standard, it uses a number of extensions that are
 not featured in the standard.  The kernel is a freestanding C
 environment, with no reliance on the standard C library, so some
 portions of the C standard are not supported.  Arbitrary long long

Documentation/scsi/scsi_mid_low_api.rst

@@ -1190,11 +1190,11 @@ Members of interest:
 		 - pointer to scsi_device object that this command is
                    associated with.
     resid
-		 - an LLD should set this signed integer to the requested
+		 - an LLD should set this unsigned integer to the requested
                    transfer length (i.e. 'request_bufflen') less the number
                    of bytes that are actually transferred. 'resid' is
                    preset to 0 so an LLD can ignore it if it cannot detect
-                   underruns (overruns should be rare). If possible an LLD
+                   underruns (overruns should not be reported). An LLD
                    should set 'resid' prior to invoking 'done'. The most
                    interesting case is data transfers from a SCSI target
                    device (e.g. READs) that underrun.

Documentation/security/keys/trusted-encrypted.rst

@@ -87,22 +87,26 @@ Key Generation
 Trusted Keys
 ------------
 
-New keys are created from random numbers generated in the trust source. They
-are encrypted/decrypted using a child key in the storage key hierarchy.
-Encryption and decryption of the child key must be protected by a strong
-access control policy within the trust source.
+New keys are created from random numbers. They are encrypted/decrypted using
+a child key in the storage key hierarchy. Encryption and decryption of the
+child key must be protected by a strong access control policy within the
+trust source. The random number generator in use differs according to the
+selected trust source:
 
-  *  TPM (hardware device) based RNG
+  *  TPM: hardware device based RNG
 
-     Strength of random numbers may vary from one device manufacturer to
-     another.
+     Keys are generated within the TPM. Strength of random numbers may vary
+     from one device manufacturer to another.
 
-  *  TEE (OP-TEE based on Arm TrustZone) based RNG
+  *  TEE: OP-TEE based on Arm TrustZone based RNG
 
      RNG is customizable as per platform needs. It can either be direct output
      from platform specific hardware RNG or a software based Fortuna CSPRNG
      which can be seeded via multiple entropy sources.
 
+Users may override this by specifying ``trusted.rng=kernel`` on the kernel
+command-line to override the used RNG with the kernel's random number pool.
+
 Encrypted Keys
 --------------
 

Documentation/translations/it_IT/process/howto.rst

@@ -44,7 +44,7 @@ altro, utili riferimenti:
 - "C:  A Reference Manual" di Harbison and Steele [Prentice Hall]
 
 Il kernel è stato scritto usando GNU C e la toolchain GNU.
-Sebbene si attenga allo standard ISO C89, esso utilizza una serie di
+Sebbene si attenga allo standard ISO C11, esso utilizza una serie di
 estensioni che non sono previste in questo standard. Il kernel è un
 ambiente C indipendente, che non ha alcuna dipendenza dalle librerie
 C standard, così alcune parti del C standard non sono supportate.

Documentation/translations/ja_JP/howto.rst

@@ -65,7 +65,7 @@ Linux カーネル開発のやり方
  - 『新・詳説 C 言語 H&S リファレンス』 (サミュエル P ハービソン/ガイ L スティール共著 斉藤 信男監訳)[ソフトバンク]
 
 カーネルは GNU C と GNU ツールチェインを使って書かれています。カーネル
-は ISO C89 仕様に準拠して書く一方で、標準には無い言語拡張を多く使って
+は ISO C11 仕様に準拠して書く一方で、標準には無い言語拡張を多く使って
 います。カーネルは標準 C ライブラリに依存しない、C 言語非依存環境です。
 そのため、C の標準の中で使えないものもあります。特に任意の long long
 の除算や浮動小数点は使えません。カーネルがツールチェインや C 言語拡張

Documentation/translations/ko_KR/howto.rst

@@ -62,7 +62,7 @@ Documentation/process/howto.rst
  - "Practical C Programming" by Steve Oualline [O'Reilly]
  - "C:  A Reference Manual" by Harbison and Steele [Prentice Hall]
 
-커널은 GNU C와 GNU 툴체인을 사용하여 작성되었다. 이 툴들은 ISO C89 표준을
+커널은 GNU C와 GNU 툴체인을 사용하여 작성되었다. 이 툴들은 ISO C11 표준을
 따르는 반면 표준에 있지 않은 많은 확장기능도 가지고 있다. 커널은 표준 C
 라이브러리와는 관계없이 freestanding C 환경이어서 C 표준의 일부는
 지원되지 않는다. 임의의 long long 나누기나 floating point는 지원되지 않는다.

Documentation/translations/zh_CN/process/howto.rst

@@ -45,7 +45,7 @@ Linux内核大部分是由C语言写成的，一些体系结构相关的代码
  - "C:  A Reference Manual" by Harbison and Steele [Prentice Hall]
    《C语言参考手册（原书第5版）》（邱仲潘 等译）[机械工业出版社]
 
-Linux内核使用GNU C和GNU工具链开发。虽然它遵循ISO C89标准，但也用到了一些
+Linux内核使用GNU C和GNU工具链开发。虽然它遵循ISO C11标准，但也用到了一些
 标准中没有定义的扩展。内核是自给自足的C环境，不依赖于标准C库的支持，所以
 并不支持C标准中的部分定义。比如long long类型的大数除法和浮点运算就不允许
 使用。有时候确实很难弄清楚内核对工具链的要求和它所使用的扩展，不幸的是目

Documentation/translations/zh_TW/process/howto.rst

@@ -48,7 +48,7 @@ Linux內核大部分是由C語言寫成的，一些體系結構相關的代碼
  - "C:  A Reference Manual" by Harbison and Steele [Prentice Hall]
    《C語言參考手冊（原書第5版）》（邱仲潘 等譯）[機械工業出版社]
 
-Linux內核使用GNU C和GNU工具鏈開發。雖然它遵循ISO C89標準，但也用到了一些
+Linux內核使用GNU C和GNU工具鏈開發。雖然它遵循ISO C11標準，但也用到了一些
 標準中沒有定義的擴展。內核是自給自足的C環境，不依賴於標準C庫的支持，所以
 並不支持C標準中的部分定義。比如long long類型的大數除法和浮點運算就不允許
 使用。有時候確實很難弄清楚內核對工具鏈的要求和它所使用的擴展，不幸的是目

MAINTAINERS

@@ -7282,6 +7282,12 @@ S:	Maintained
 F:	drivers/hwmon/f75375s.c
 F:	include/linux/f75375s.h
 
+FINTEK F81604 USB to 2xCANBUS DEVICE DRIVER
+M:	Ji-Ze Hong (Peter Hong) <[email protected]>
+L:	[email protected]
+S:	Maintained
+F:	drivers/net/can/usb/f81604.c
+
 FIREWIRE AUDIO DRIVERS and IEC 61883-1/6 PACKET STREAMING ENGINE
 M:	Clemens Ladisch <[email protected]>
 M:	Takashi Sakamoto <[email protected]>
@@ -8747,6 +8753,7 @@ F:	include/asm-generic/hyperv-tlfs.h
 F:	include/asm-generic/mshyperv.h
 F:	include/clocksource/hyperv_timer.h
 F:	include/linux/hyperv.h
+F:	include/net/mana
 F:	include/uapi/linux/hyperv.h
 F:	net/vmw_vsock/hyperv_transport.c
 F:	tools/hv/
@@ -12460,6 +12467,15 @@ F:	drivers/scsi/smartpqi/smartpqi*.[ch]
 F:	include/linux/cciss*.h
 F:	include/uapi/linux/cciss*.h
 
+MICROSOFT MANA RDMA DRIVER
+M:	Long Li <[email protected]>
+M:	Ajay Sharma <[email protected]>
+L:	[email protected]
+S:	Supported
+F:	drivers/infiniband/hw/mana/
+F:	include/net/mana
+F:	include/uapi/rdma/mana-abi.h
+
 MICROSOFT SURFACE BATTERY AND AC DRIVERS
 M:	Maximilian Luz <[email protected]>
 L:	[email protected]
@@ -13429,6 +13445,11 @@ F:	drivers/nubus/
 F:	include/linux/nubus.h
 F:	include/uapi/linux/nubus.h
 
+NUVOTON M058SSAN GPIO DRIVER
+M:	Filippo Copetti <[email protected]>
+S:	Maintained
+F:	drivers/gpio/gpio-m058ssan.c
+
 NVIDIA (rivafb and nvidiafb) FRAMEBUFFER DRIVER
 M:	Antonino Daplas <[email protected]>
 L:	[email protected]
@@ -13524,6 +13545,12 @@ S:	Maintained
 F:	Documentation/devicetree/bindings/display/imx/nxp,imx8mq-dcss.yaml
 F:	drivers/gpu/drm/imx/dcss/
 
+NXP PCF85263 RTC DRIVER
+M:	Filippo Copetti <[email protected]>
+S:	Maintained
+F:	drivers/rtc/rtc-pcf85263.c
+F:	drivers/rtc/rtc-pcf85263.h
+
 NXP PF8100/PF8121A/PF8200 PMIC REGULATOR DEVICE DRIVER
 M:	Jagan Teki <[email protected]>
 S:	Maintained

Makefile

@@ -1,7 +1,7 @@
 # SPDX-License-Identifier: GPL-2.0
 VERSION = 5
 PATCHLEVEL = 15
-SUBLEVEL = 131
+SUBLEVEL = 143
 EXTRAVERSION =
 NAME = Trick or Treat
 
@@ -518,9 +518,6 @@ LINUXINCLUDE    := \
 		-I$(objtree)/include \
 		$(USERINCLUDE)
 
-# UBUNTU: Include our third party driver stuff too
-LINUXINCLUDE   += -I$(srctree)/ubuntu/include
-
 KBUILD_AFLAGS   := -D__ASSEMBLY__ -fno-PIE
 KBUILD_CFLAGS   := -Wall -Wundef -Werror=strict-prototypes -Wno-trigraphs \
 		   -fno-strict-aliasing -fno-common -fshort-wchar -fno-PIE \
@@ -675,7 +672,7 @@ endif
 ifeq ($(KBUILD_EXTMOD),)
 # Objects we will link into vmlinux / subdirs we need to visit
 core-y		:= init/ usr/ arch/$(SRCARCH)/
-drivers-y	:= drivers/ sound/ ubuntu/
+drivers-y	:= drivers/ sound/
 drivers-$(CONFIG_SAMPLES) += samples/
 drivers-$(CONFIG_NET) += net/
 drivers-y	+= virt/
@@ -1351,7 +1348,6 @@ headers: $(version_h) scripts_unifdef uapi-asm-generic archheaders archscripts
 	$(if $(filter um, $(SRCARCH)), $(error Headers not exportable for UML))
 	$(Q)$(MAKE) $(hdr-inst)=include/uapi
 	$(Q)$(MAKE) $(hdr-inst)=arch/$(SRCARCH)/include/uapi
-	$(Q)$(MAKE) $(hdr-inst)=ubuntu/include dst=include oldheaders=
 
 # Deprecated. It is no-op now.
 PHONY += headers_check
@@ -1839,7 +1835,9 @@ quiet_cmd_depmod = DEPMOD  $(MODLIB)
 
 modules_install:
 	$(Q)$(MAKE) -f $(srctree)/scripts/Makefile.modinst
+ifndef modules_sign_only
 	$(call cmd,depmod)
+endif
 
 else # CONFIG_MODULES
 

Ubuntu.md

@@ -1,8 +1,8 @@
-Name:    linux
+Name:    linux-azure-5.15
 Version: 5.15.0
-Series:  22.04 (jammy)
+Series:  20.04 (focal)
 Description:
-    This is the source code for the Ubuntu linux kernel for the 22.04 series. This
-    source tree is used to produce the flavours: generic, generic-64k, generic-lpae, lowlatency.
+    This is the source code for the Ubuntu linux kernel for the 20.04 series. This
+    source tree is used to produce the flavours: azure.
     This kernel is configured to support the widest range of desktop, laptop and
     server configurations.

arch/arc/include/asm/atomic-llsc.h

@@ -18,7 +18,7 @@ static inline void arch_atomic_##op(int i, atomic_t *v)			\
 	: [val]	"=&r"	(val) /* Early clobber to prevent reg reuse */	\
 	: [ctr]	"r"	(&v->counter), /* Not "m": llock only supports reg direct addr mode */	\
 	  [i]	"ir"	(i)						\
-	: "cc");							\
+	: "cc", "memory");						\
 }									\
 
 #define ATOMIC_OP_RETURN(op, c_op, asm_op)				\
@@ -34,7 +34,7 @@ static inline int arch_atomic_##op##_return_relaxed(int i, atomic_t *v)	\
 	: [val]	"=&r"	(val)						\
 	: [ctr]	"r"	(&v->counter),					\
 	  [i]	"ir"	(i)						\
-	: "cc");							\
+	: "cc", "memory");						\
 									\
 	return val;							\
 }
@@ -56,7 +56,7 @@ static inline int arch_atomic_fetch_##op##_relaxed(int i, atomic_t *v)	\
 	  [orig] "=&r" (orig)						\
 	: [ctr]	"r"	(&v->counter),					\
 	  [i]	"ir"	(i)						\
-	: "cc");							\
+	: "cc", "memory");						\
 									\
 	return orig;							\
 }