Merge branch 'topic/user-access-begin' into next

Merge the user_access_begin() series from Christophe. This is based on a commit from Linus that went into v5.5-rc7.
mariux64 · Feb 1, 2020 · 4c25df5 · 4c25df5
2 parents 34b5a94 + 3d7dfd6
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diff --git a/.mailmap b/.mailmap
@@ -99,6 +99,7 @@ Jacob Shin <Jacob.Shin@amd.com>
 Jaegeuk Kim <jaegeuk@kernel.org> <jaegeuk@google.com>
 Jaegeuk Kim <jaegeuk@kernel.org> <jaegeuk@motorola.com>
 Jaegeuk Kim <jaegeuk@kernel.org> <jaegeuk.kim@samsung.com>
+Jakub Kicinski <kuba@kernel.org> <jakub.kicinski@netronome.com>
 James Bottomley <jejb@mulgrave.(none)>
 James Bottomley <jejb@titanic.il.steeleye.com>
 James E Wilson <wilson@specifix.com>

diff --git a/Documentation/ABI/stable/sysfs-driver-mlxreg-io b/Documentation/ABI/stable/sysfs-driver-mlxreg-io
@@ -29,13 +29,13 @@ Description:	This file shows the system fans direction:
 
 		The files are read only.
 
-What:		/sys/devices/platform/mlxplat/mlxreg-io/hwmon/hwmon*/jtag_enable
+What:		/sys/devices/platform/mlxplat/mlxreg-io/hwmon/hwmon*/cpld3_version
 
 Date:		November 2018
 KernelVersion:	5.0
 Contact:	Vadim Pasternak <vadimpmellanox.com>
 Description:	These files show with which CPLD versions have been burned
-		on LED board.
+		on LED or Gearbox board.
 
 		The files are read only.
 
@@ -121,6 +121,15 @@ Description:	These files show the system reset cause, as following: ComEx
 
 		The files are read only.
 
+What:		/sys/devices/platform/mlxplat/mlxreg-io/hwmon/hwmon*/cpld4_version
+Date:		November 2018
+KernelVersion:	5.0
+Contact:	Vadim Pasternak <vadimpmellanox.com>
+Description:	These files show with which CPLD versions have been burned
+		on LED board.
+
+		The files are read only.
+
 Date:		June 2019
 KernelVersion:	5.3
 Contact:	Vadim Pasternak <vadimpmellanox.com>

diff --git a/Documentation/admin-guide/devices.txt b/Documentation/admin-guide/devices.txt
@@ -319,7 +319,7 @@
 		182 = /dev/perfctr	Performance-monitoring counters
 		183 = /dev/hwrng	Generic random number generator
 		184 = /dev/cpu/microcode CPU microcode update interface
-		186 = /dev/atomicps	Atomic shapshot of process state data
+		186 = /dev/atomicps	Atomic snapshot of process state data
 		187 = /dev/irnet	IrNET device
 		188 = /dev/smbusbios	SMBus BIOS
 		189 = /dev/ussp_ctl	User space serial port control

diff --git a/Documentation/devicetree/bindings/i2c/i2c-at91.txt b/Documentation/devicetree/bindings/i2c/i2c-at91.txt
@@ -18,8 +18,10 @@ Optional properties:
 - dma-names: should contain "tx" and "rx".
 - atmel,fifo-size: maximum number of data the RX and TX FIFOs can store for FIFO
   capable I2C controllers.
-- i2c-sda-hold-time-ns: TWD hold time, only available for "atmel,sama5d4-i2c"
-  and "atmel,sama5d2-i2c".
+- i2c-sda-hold-time-ns: TWD hold time, only available for:
+	"atmel,sama5d4-i2c",
+	"atmel,sama5d2-i2c",
+	"microchip,sam9x60-i2c".
 - Child nodes conforming to i2c bus binding
 
 Examples :

diff --git a/Documentation/devicetree/bindings/spi/spi-controller.yaml b/Documentation/devicetree/bindings/spi/spi-controller.yaml
@@ -111,7 +111,7 @@ patternProperties:
       spi-rx-bus-width:
         allOf:
           - $ref: /schemas/types.yaml#/definitions/uint32
-          - enum: [ 1, 2, 4 ]
+          - enum: [ 1, 2, 4, 8 ]
           - default: 1
         description:
           Bus width to the SPI bus used for MISO.
@@ -123,7 +123,7 @@ patternProperties:
       spi-tx-bus-width:
         allOf:
           - $ref: /schemas/types.yaml#/definitions/uint32
-          - enum: [ 1, 2, 4 ]
+          - enum: [ 1, 2, 4, 8 ]
           - default: 1
         description:
           Bus width to the SPI bus used for MOSI.

diff --git a/Documentation/media/v4l-drivers/meye.rst b/Documentation/media/v4l-drivers/meye.rst
@@ -95,7 +95,7 @@ so all video4linux tools (like xawtv) should work with this driver.
 
 Besides the video4linux interface, the driver has a private interface
 for accessing the Motion Eye extended parameters (camera sharpness,
-agc, video framerate), the shapshot and the MJPEG capture facilities.
+agc, video framerate), the snapshot and the MJPEG capture facilities.
 
 This interface consists of several ioctls (prototypes and structures
 can be found in include/linux/meye.h):

diff --git a/Documentation/networking/ip-sysctl.txt b/Documentation/networking/ip-sysctl.txt
@@ -603,7 +603,7 @@ tcp_synack_retries - INTEGER
 	with the current initial RTO of 1second. With this the final timeout
 	for a passive TCP connection will happen after 63seconds.
 
-tcp_syncookies - BOOLEAN
+tcp_syncookies - INTEGER
 	Only valid when the kernel was compiled with CONFIG_SYN_COOKIES
 	Send out syncookies when the syn backlog queue of a socket
 	overflows. This is to prevent against the common 'SYN flood attack'

diff --git a/Documentation/networking/netdev-FAQ.rst b/Documentation/networking/netdev-FAQ.rst
@@ -34,8 +34,8 @@ the names, the ``net`` tree is for fixes to existing code already in the
 mainline tree from Linus, and ``net-next`` is where the new code goes
 for the future release.  You can find the trees here:
 
-- https://git.kernel.org/pub/scm/linux/kernel/git/davem/net.git
-- https://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next.git
+- https://git.kernel.org/pub/scm/linux/kernel/git/netdev/net.git
+- https://git.kernel.org/pub/scm/linux/kernel/git/netdev/net-next.git
 
 Q: How often do changes from these trees make it to the mainline Linus tree?
 ----------------------------------------------------------------------------

diff --git a/Documentation/process/embargoed-hardware-issues.rst b/Documentation/process/embargoed-hardware-issues.rst
@@ -255,7 +255,7 @@ an involved disclosed party. The current ambassadors list:
   Red Hat	Josh Poimboeuf <jpoimboe@redhat.com>
   SUSE		Jiri Kosina <jkosina@suse.cz>
 
-  Amazon
+  Amazon	Peter Bowen <pzb@amzn.com>
   Google	Kees Cook <keescook@chromium.org>
   ============= ========================================================
 

diff --git a/MAINTAINERS b/MAINTAINERS
@@ -720,7 +720,7 @@ F:	Documentation/devicetree/bindings/i2c/i2c-altera.txt
 F:	drivers/i2c/busses/i2c-altera.c
 
 ALTERA MAILBOX DRIVER
-M:	Ley Foon Tan <lftan@altera.com>
+M:	Ley Foon Tan <ley.foon.tan@intel.com>
 L:	nios2-dev@lists.rocketboards.org (moderated for non-subscribers)
 S:	Maintained
 F:	drivers/mailbox/mailbox-altera.c
@@ -1407,7 +1407,7 @@ T:	git git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc.git
 
 ARM/ACTIONS SEMI ARCHITECTURE
 M:	Andreas Färber <afaerber@suse.de>
-R:	Manivannan Sadhasivam <manivannan.sadhasivam@linaro.org>
+M:	Manivannan Sadhasivam <manivannan.sadhasivam@linaro.org>
 L:	linux-arm-kernel@lists.infradead.org (moderated for non-subscribers)
 S:	Maintained
 N:	owl
@@ -3150,7 +3150,7 @@ S:	Maintained
 F:	arch/mips/net/
 
 BPF JIT for NFP NICs
-M:	Jakub Kicinski <jakub.kicinski@netronome.com>
+M:	Jakub Kicinski <kuba@kernel.org>
 L:	netdev@vger.kernel.org
 L:	bpf@vger.kernel.org
 S:	Supported
@@ -11437,7 +11437,7 @@ F:	include/uapi/linux/netrom.h
 F:	net/netrom/
 
 NETRONOME ETHERNET DRIVERS
-M:	Jakub Kicinski <jakub.kicinski@netronome.com>
+M:	Jakub Kicinski <kuba@kernel.org>
 L:	oss-drivers@netronome.com
 S:	Maintained
 F:	drivers/net/ethernet/netronome/
@@ -11466,8 +11466,8 @@ M:	"David S. Miller" <davem@davemloft.net>
 L:	netdev@vger.kernel.org
 W:	http://www.linuxfoundation.org/en/Net
 Q:	http://patchwork.ozlabs.org/project/netdev/list/
-T:	git git://git.kernel.org/pub/scm/linux/kernel/git/davem/net.git
-T:	git git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next.git
+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
 S:	Odd Fixes
 F:	Documentation/devicetree/bindings/net/
 F:	drivers/net/
@@ -11508,8 +11508,8 @@ M:	"David S. Miller" <davem@davemloft.net>
 L:	netdev@vger.kernel.org
 W:	http://www.linuxfoundation.org/en/Net
 Q:	http://patchwork.ozlabs.org/project/netdev/list/
-T:	git git://git.kernel.org/pub/scm/linux/kernel/git/davem/net.git
-T:	git git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next.git
+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
 B:	mailto:netdev@vger.kernel.org
 S:	Maintained
 F:	net/
@@ -11554,7 +11554,7 @@ M:	"David S. Miller" <davem@davemloft.net>
 M:	Alexey Kuznetsov <kuznet@ms2.inr.ac.ru>
 M:	Hideaki YOSHIFUJI <yoshfuji@linux-ipv6.org>
 L:	netdev@vger.kernel.org
-T:	git git://git.kernel.org/pub/scm/linux/kernel/git/davem/net.git
+T:	git git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net.git
 S:	Maintained
 F:	net/ipv4/
 F:	net/ipv6/
@@ -11597,7 +11597,7 @@ M:	Boris Pismenny <borisp@mellanox.com>
 M:	Aviad Yehezkel <aviadye@mellanox.com>
 M:	John Fastabend <john.fastabend@gmail.com>
 M:	Daniel Borkmann <daniel@iogearbox.net>
-M:	Jakub Kicinski <jakub.kicinski@netronome.com>
+M:	Jakub Kicinski <kuba@kernel.org>
 L:	netdev@vger.kernel.org
 S:	Maintained
 F:	net/tls/*
@@ -11609,7 +11609,7 @@ L:	linux-wireless@vger.kernel.org
 Q:	http://patchwork.kernel.org/project/linux-wireless/list/
 
 NETDEVSIM
-M:	Jakub Kicinski <jakub.kicinski@netronome.com>
+M:	Jakub Kicinski <kuba@kernel.org>
 S:	Maintained
 F:	drivers/net/netdevsim/*
 
@@ -11686,7 +11686,7 @@ F:	Documentation/scsi/NinjaSCSI.txt
 F:	drivers/scsi/nsp32*
 
 NIOS2 ARCHITECTURE
-M:	Ley Foon Tan <lftan@altera.com>
+M:	Ley Foon Tan <ley.foon.tan@intel.com>
 L:	nios2-dev@lists.rocketboards.org (moderated for non-subscribers)
 T:	git git://git.kernel.org/pub/scm/linux/kernel/git/lftan/nios2.git
 S:	Maintained
@@ -12570,7 +12570,7 @@ F:	Documentation/devicetree/bindings/pci/aardvark-pci.txt
 F:	drivers/pci/controller/pci-aardvark.c
 
 PCI DRIVER FOR ALTERA PCIE IP
-M:	Ley Foon Tan <lftan@altera.com>
+M:	Ley Foon Tan <ley.foon.tan@intel.com>
 L:	rfi@lists.rocketboards.org (moderated for non-subscribers)
 L:	linux-pci@vger.kernel.org
 S:	Supported
@@ -12749,7 +12749,7 @@ S:	Supported
 F:	Documentation/PCI/pci-error-recovery.rst
 
 PCI MSI DRIVER FOR ALTERA MSI IP
-M:	Ley Foon Tan <lftan@altera.com>
+M:	Ley Foon Tan <ley.foon.tan@intel.com>
 L:	rfi@lists.rocketboards.org (moderated for non-subscribers)
 L:	linux-pci@vger.kernel.org
 S:	Supported
@@ -13685,7 +13685,6 @@ F:	drivers/net/ethernet/qualcomm/emac/
 
 QUALCOMM ETHQOS ETHERNET DRIVER
 M:	Vinod Koul <vkoul@kernel.org>
-M:	Niklas Cassel <niklas.cassel@linaro.org>
 L:	netdev@vger.kernel.org
 S:	Maintained
 F:	drivers/net/ethernet/stmicro/stmmac/dwmac-qcom-ethqos.c
@@ -14555,8 +14554,6 @@ F:	include/linux/platform_data/spi-s3c64xx.h
 
 SAMSUNG SXGBE DRIVERS
 M:	Byungho An <bh74.an@samsung.com>
-M:	Girish K S <ks.giri@samsung.com>
-M:	Vipul Pandya <vipul.pandya@samsung.com>
 S:	Supported
 L:	netdev@vger.kernel.org
 F:	drivers/net/ethernet/samsung/sxgbe/
@@ -18051,7 +18048,7 @@ XDP (eXpress Data Path)
 M:	Alexei Starovoitov <ast@kernel.org>
 M:	Daniel Borkmann <daniel@iogearbox.net>
 M:	David S. Miller <davem@davemloft.net>
-M:	Jakub Kicinski <jakub.kicinski@netronome.com>
+M:	Jakub Kicinski <kuba@kernel.org>
 M:	Jesper Dangaard Brouer <hawk@kernel.org>
 M:	John Fastabend <john.fastabend@gmail.com>
 L:	netdev@vger.kernel.org

diff --git a/Makefile b/Makefile
@@ -2,7 +2,7 @@
 VERSION = 5
 PATCHLEVEL = 5
 SUBLEVEL = 0
-EXTRAVERSION = -rc5
+EXTRAVERSION = -rc7
 NAME = Kleptomaniac Octopus
 
 # *DOCUMENTATION*

diff --git a/arch/arc/include/asm/entry-arcv2.h b/arch/arc/include/asm/entry-arcv2.h
@@ -162,7 +162,7 @@
 #endif
 
 #ifdef CONFIG_ARC_HAS_ACCL_REGS
-	ST2	r58, r59, PT_sp + 12
+	ST2	r58, r59, PT_r58
 #endif
 
 .endm
@@ -172,8 +172,8 @@
 
 	LD2	gp, fp, PT_r26		; gp (r26), fp (r27)
 
-	ld	r12, [sp, PT_sp + 4]
-	ld	r30, [sp, PT_sp + 8]
+	ld	r12, [sp, PT_r12]
+	ld	r30, [sp, PT_r30]
 
 	; Restore SP (into AUX_USER_SP) only if returning to U mode
 	;  - for K mode, it will be implicitly restored as stack is unwound
@@ -190,7 +190,7 @@
 #endif
 
 #ifdef CONFIG_ARC_HAS_ACCL_REGS
-	LD2	r58, r59, PT_sp + 12
+	LD2	r58, r59, PT_r58
 #endif
 .endm
 

diff --git a/arch/arc/include/asm/hugepage.h b/arch/arc/include/asm/hugepage.h
@@ -8,7 +8,6 @@
 #define _ASM_ARC_HUGEPAGE_H
 
 #include <linux/types.h>
-#define __ARCH_USE_5LEVEL_HACK
 #include <asm-generic/pgtable-nopmd.h>
 
 static inline pte_t pmd_pte(pmd_t pmd)

diff --git a/arch/arc/kernel/asm-offsets.c b/arch/arc/kernel/asm-offsets.c
@@ -66,7 +66,15 @@ int main(void)
 
 	DEFINE(SZ_CALLEE_REGS, sizeof(struct callee_regs));
 	DEFINE(SZ_PT_REGS, sizeof(struct pt_regs));
-	DEFINE(PT_user_r25, offsetof(struct pt_regs, user_r25));
+
+#ifdef CONFIG_ISA_ARCV2
+	OFFSET(PT_r12, pt_regs, r12);
+	OFFSET(PT_r30, pt_regs, r30);
+#endif
+#ifdef CONFIG_ARC_HAS_ACCL_REGS
+	OFFSET(PT_r58, pt_regs, r58);
+	OFFSET(PT_r59, pt_regs, r59);
+#endif
 
 	return 0;
 }
diff --git a/arch/arc/plat-eznps/Kconfig b/arch/arc/plat-eznps/Kconfig
@@ -7,7 +7,7 @@
 menuconfig ARC_PLAT_EZNPS
 	bool "\"EZchip\" ARC dev platform"
 	select CPU_BIG_ENDIAN
-	select CLKSRC_NPS
+	select CLKSRC_NPS if !PHYS_ADDR_T_64BIT
 	select EZNPS_GIC
 	select EZCHIP_NPS_MANAGEMENT_ENET if ETHERNET
 	help

diff --git a/arch/arm/Kconfig b/arch/arm/Kconfig
@@ -72,6 +72,7 @@ config ARM
 	select HAVE_ARM_SMCCC if CPU_V7
 	select HAVE_EBPF_JIT if !CPU_ENDIAN_BE32
 	select HAVE_CONTEXT_TRACKING
+	select HAVE_COPY_THREAD_TLS
 	select HAVE_C_RECORDMCOUNT
 	select HAVE_DEBUG_KMEMLEAK
 	select HAVE_DMA_CONTIGUOUS if MMU

diff --git a/arch/arm/boot/dts/am571x-idk.dts b/arch/arm/boot/dts/am571x-idk.dts
@@ -167,11 +167,7 @@
 
 &pcie1_rc {
 	status = "okay";
-	gpios = <&gpio3 23 GPIO_ACTIVE_HIGH>;
-};
-
-&pcie1_ep {
-	gpios = <&gpio3 23 GPIO_ACTIVE_HIGH>;
+	gpios = <&gpio5 18 GPIO_ACTIVE_HIGH>;
 };
 
 &mmc1 {

diff --git a/arch/arm/boot/dts/am572x-idk-common.dtsi b/arch/arm/boot/dts/am572x-idk-common.dtsi
@@ -147,10 +147,6 @@
 	gpios = <&gpio3 23 GPIO_ACTIVE_HIGH>;
 };
 
-&pcie1_ep {
-	gpios = <&gpio3 23 GPIO_ACTIVE_HIGH>;
-};
-
 &mailbox5 {
 	status = "okay";
 	mbox_ipu1_ipc3x: mbox_ipu1_ipc3x {

diff --git a/arch/arm/boot/dts/am57xx-beagle-x15-common.dtsi b/arch/arm/boot/dts/am57xx-beagle-x15-common.dtsi
@@ -29,6 +29,27 @@
 		reg = <0x0 0x80000000 0x0 0x80000000>;
 	};
 
+	main_12v0: fixedregulator-main_12v0 {
+		/* main supply */
+		compatible = "regulator-fixed";
+		regulator-name = "main_12v0";
+		regulator-min-microvolt = <12000000>;
+		regulator-max-microvolt = <12000000>;
+		regulator-always-on;
+		regulator-boot-on;
+	};
+
+	evm_5v0: fixedregulator-evm_5v0 {
+		/* Output of TPS54531D */
+		compatible = "regulator-fixed";
+		regulator-name = "evm_5v0";
+		regulator-min-microvolt = <5000000>;
+		regulator-max-microvolt = <5000000>;
+		vin-supply = <&main_12v0>;
+		regulator-always-on;
+		regulator-boot-on;
+	};
+
 	vdd_3v3: fixedregulator-vdd_3v3 {
 		compatible = "regulator-fixed";
 		regulator-name = "vdd_3v3";
@@ -547,10 +568,6 @@
 	gpios = <&gpio2 8 GPIO_ACTIVE_LOW>;
 };
 
-&pcie1_ep {
-	gpios = <&gpio2 8 GPIO_ACTIVE_LOW>;
-};
-
 &mcasp3 {
 	#sound-dai-cells = <0>;
 	assigned-clocks = <&l4per2_clkctrl DRA7_L4PER2_MCASP3_CLKCTRL 24>;