Merge tag 'for-linus' of git://git.armlinux.org.uk/~rmk/linux-arm

Pull ARM development updates from Russell King:

 - Rename "mod_init" and "mod_exit" so that initcall debug output is
   actually useful (Randy Dunlap)

 - Update maintainers entries for linux-arm-kernel to indicate it is
   moderated for non-subscribers (Randy Dunlap)

 - Move install rules to arch/arm/Makefile (Masahiro Yamada)

 - Drop unnecessary ARCH_NR_GPIOS definition (Linus Walleij)

 - Don't warn about atags_to_fdt() stack size (David Heidelberg)

 - Speed up unaligned copy_{from,to}_kernel_nofault (Arnd Bergmann)

 - Get rid of set_fs() usage (Arnd Bergmann)

 - Remove checks for GCC prior to v4.6 (Geert Uytterhoeven)

* tag 'for-linus' of git://git.armlinux.org.uk/~rmk/linux-arm:
  ARM: 9118/1: div64: Remove always-true __div64_const32_is_OK() duplicate
  ARM: 9117/1: asm-generic: div64: Remove always-true __div64_const32_is_OK()
  ARM: 9116/1: unified: Remove check for gcc < 4
  ARM: 9110/1: oabi-compat: fix oabi epoll sparse warning
  ARM: 9113/1: uaccess: remove set_fs() implementation
  ARM: 9112/1: uaccess: add __{get,put}_kernel_nofault
  ARM: 9111/1: oabi-compat: rework fcntl64() emulation
  ARM: 9114/1: oabi-compat: rework sys_semtimedop emulation
  ARM: 9108/1: oabi-compat: rework epoll_wait/epoll_pwait emulation
  ARM: 9107/1: syscall: always store thread_info->abi_syscall
  ARM: 9109/1: oabi-compat: add epoll_pwait handler
  ARM: 9106/1: traps: use get_kernel_nofault instead of set_fs()
  ARM: 9115/1: mm/maccess: fix unaligned copy_{from,to}_kernel_nofault
  ARM: 9105/1: atags_to_fdt: don't warn about stack size
  ARM: 9103/1: Drop ARCH_NR_GPIOS definition
  ARM: 9102/1: move theinstall rules to arch/arm/Makefile
  ARM: 9100/1: MAINTAINERS: mark all linux-arm-kernel@infradead list as moderated
  ARM: 9099/1: crypto: rename 'mod_init' & 'mod_exit' functions to be module-specific

MAINTAINERS

@@ -2334,14 +2334,14 @@ N:	oxnas
 
 ARM/PALM TREO SUPPORT
 M:	Tomas Cech <sleep_walker@suse.com>
-L:	linux-arm-kernel@lists.infradead.org
+L:	linux-arm-kernel@lists.infradead.org (moderated for non-subscribers)
 S:	Maintained
 W:	http://hackndev.com
 F:	arch/arm/mach-pxa/palmtreo.*
 
 ARM/PALMTX,PALMT5,PALMLD,PALMTE2,PALMTC SUPPORT
 M:	Marek Vasut <marek.vasut@gmail.com>
-L:	linux-arm-kernel@lists.infradead.org
+L:	linux-arm-kernel@lists.infradead.org (moderated for non-subscribers)
 S:	Maintained
 W:	http://hackndev.com
 F:	arch/arm/mach-pxa/include/mach/palmld.h
@@ -2355,7 +2355,7 @@ F:	arch/arm/mach-pxa/palmtx.c
 
 ARM/PALMZ72 SUPPORT
 M:	Sergey Lapin <slapin@ossfans.org>
-L:	linux-arm-kernel@lists.infradead.org
+L:	linux-arm-kernel@lists.infradead.org (moderated for non-subscribers)
 S:	Maintained
 W:	http://hackndev.com
 F:	arch/arm/mach-pxa/palmz72.*
@@ -2525,7 +2525,7 @@ N:	s5pv210
 
 ARM/SAMSUNG S5P SERIES 2D GRAPHICS ACCELERATION (G2D) SUPPORT
 M:	Andrzej Hajda <a.hajda@samsung.com>
-L:	linux-arm-kernel@lists.infradead.org
+L:	linux-arm-kernel@lists.infradead.org (moderated for non-subscribers)
 L:	linux-media@vger.kernel.org
 S:	Maintained
 F:	drivers/media/platform/s5p-g2d/
@@ -2542,14 +2542,14 @@ ARM/SAMSUNG S5P SERIES JPEG CODEC SUPPORT
 M:	Andrzej Pietrasiewicz <andrzejtp2010@gmail.com>
 M:	Jacek Anaszewski <jacek.anaszewski@gmail.com>
 M:	Sylwester Nawrocki <s.nawrocki@samsung.com>
-L:	linux-arm-kernel@lists.infradead.org
+L:	linux-arm-kernel@lists.infradead.org (moderated for non-subscribers)
 L:	linux-media@vger.kernel.org
 S:	Maintained
 F:	drivers/media/platform/s5p-jpeg/
 
 ARM/SAMSUNG S5P SERIES Multi Format Codec (MFC) SUPPORT
 M:	Andrzej Hajda <a.hajda@samsung.com>
-L:	linux-arm-kernel@lists.infradead.org
+L:	linux-arm-kernel@lists.infradead.org (moderated for non-subscribers)
 L:	linux-media@vger.kernel.org
 S:	Maintained
 F:	drivers/media/platform/s5p-mfc/
@@ -3568,7 +3568,7 @@ BROADCOM BCM5301X ARM ARCHITECTURE
 M:	Hauke Mehrtens <hauke@hauke-m.de>
 M:	Rafał Miłecki <zajec5@gmail.com>
 M:	bcm-kernel-feedback-list@broadcom.com
-L:	linux-arm-kernel@lists.infradead.org
+L:	linux-arm-kernel@lists.infradead.org (moderated for non-subscribers)
 S:	Maintained
 F:	arch/arm/boot/dts/bcm470*
 F:	arch/arm/boot/dts/bcm5301*
@@ -3578,7 +3578,7 @@ F:	arch/arm/mach-bcm/bcm_5301x.c
 BROADCOM BCM53573 ARM ARCHITECTURE
 M:	Rafał Miłecki <rafal@milecki.pl>
 L:	bcm-kernel-feedback-list@broadcom.com
-L:	linux-arm-kernel@lists.infradead.org
+L:	linux-arm-kernel@lists.infradead.org (moderated for non-subscribers)
 S:	Maintained
 F:	arch/arm/boot/dts/bcm47189*
 F:	arch/arm/boot/dts/bcm53573*
@@ -4874,7 +4874,7 @@ CPUIDLE DRIVER - ARM BIG LITTLE
 M:	Lorenzo Pieralisi <lorenzo.pieralisi@arm.com>
 M:	Daniel Lezcano <daniel.lezcano@linaro.org>
 L:	linux-pm@vger.kernel.org
-L:	linux-arm-kernel@lists.infradead.org
+L:	linux-arm-kernel@lists.infradead.org (moderated for non-subscribers)
 S:	Maintained
 T:	git git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm.git
 F:	drivers/cpuidle/cpuidle-big_little.c
@@ -4894,14 +4894,14 @@ CPUIDLE DRIVER - ARM PSCI
 M:	Lorenzo Pieralisi <lorenzo.pieralisi@arm.com>
 M:	Sudeep Holla <sudeep.holla@arm.com>
 L:	linux-pm@vger.kernel.org
-L:	linux-arm-kernel@lists.infradead.org
+L:	linux-arm-kernel@lists.infradead.org (moderated for non-subscribers)
 S:	Supported
 F:	drivers/cpuidle/cpuidle-psci.c
 
 CPUIDLE DRIVER - ARM PSCI PM DOMAIN
 M:	Ulf Hansson <ulf.hansson@linaro.org>
 L:	linux-pm@vger.kernel.org
-L:	linux-arm-kernel@lists.infradead.org
+L:	linux-arm-kernel@lists.infradead.org (moderated for non-subscribers)
 S:	Supported
 F:	drivers/cpuidle/cpuidle-psci.h
 F:	drivers/cpuidle/cpuidle-psci-domain.c
@@ -7272,7 +7272,7 @@ F:	tools/firewire/
 
 FIRMWARE FRAMEWORK FOR ARMV8-A
 M:	Sudeep Holla <sudeep.holla@arm.com>
-L:	linux-arm-kernel@lists.infradead.org
+L:	linux-arm-kernel@lists.infradead.org (moderated for non-subscribers)
 S:	Maintained
 F:	drivers/firmware/arm_ffa/
 F:	include/linux/arm_ffa.h
@@ -7451,7 +7451,7 @@ F:	include/linux/platform_data/video-imxfb.h
 
 FREESCALE IMX DDR PMU DRIVER
 M:	Frank Li <Frank.li@nxp.com>
-L:	linux-arm-kernel@lists.infradead.org
+L:	linux-arm-kernel@lists.infradead.org (moderated for non-subscribers)
 S:	Maintained
 F:	Documentation/admin-guide/perf/imx-ddr.rst
 F:	Documentation/devicetree/bindings/perf/fsl-imx-ddr.yaml
@@ -7543,7 +7543,7 @@ F:	drivers/tty/serial/ucc_uart.c
 FREESCALE SOC DRIVERS
 M:	Li Yang <leoyang.li@nxp.com>
 L:	linuxppc-dev@lists.ozlabs.org
-L:	linux-arm-kernel@lists.infradead.org
+L:	linux-arm-kernel@lists.infradead.org (moderated for non-subscribers)
 S:	Maintained
 F:	Documentation/devicetree/bindings/misc/fsl,dpaa2-console.yaml
 F:	Documentation/devicetree/bindings/soc/fsl/
@@ -11191,7 +11191,7 @@ F:	drivers/net/wireless/marvell/libertas/
 
 MARVELL MACCHIATOBIN SUPPORT
 M:	Russell King <linux@armlinux.org.uk>
-L:	linux-arm-kernel@lists.infradead.org
+L:	linux-arm-kernel@lists.infradead.org (moderated for non-subscribers)
 S:	Maintained
 F:	arch/arm64/boot/dts/marvell/armada-8040-mcbin.dts
 
@@ -14272,23 +14272,23 @@ F:	drivers/pci/controller/pcie-altera.c
 PCI DRIVER FOR APPLIEDMICRO XGENE
 M:	Toan Le <toan@os.amperecomputing.com>
 L:	linux-pci@vger.kernel.org
-L:	linux-arm-kernel@lists.infradead.org
+L:	linux-arm-kernel@lists.infradead.org (moderated for non-subscribers)
 S:	Maintained
 F:	Documentation/devicetree/bindings/pci/xgene-pci.txt
 F:	drivers/pci/controller/pci-xgene.c
 
 PCI DRIVER FOR ARM VERSATILE PLATFORM
 M:	Rob Herring <robh@kernel.org>
 L:	linux-pci@vger.kernel.org
-L:	linux-arm-kernel@lists.infradead.org
+L:	linux-arm-kernel@lists.infradead.org (moderated for non-subscribers)
 S:	Maintained
 F:	Documentation/devicetree/bindings/pci/versatile.yaml
 F:	drivers/pci/controller/pci-versatile.c
 
 PCI DRIVER FOR ARMADA 8K
 M:	Thomas Petazzoni <thomas.petazzoni@bootlin.com>
 L:	linux-pci@vger.kernel.org
-L:	linux-arm-kernel@lists.infradead.org
+L:	linux-arm-kernel@lists.infradead.org (moderated for non-subscribers)
 S:	Maintained
 F:	Documentation/devicetree/bindings/pci/pci-armada8k.txt
 F:	drivers/pci/controller/dwc/pcie-armada8k.c
@@ -14306,7 +14306,7 @@ M:	Mingkai Hu <mingkai.hu@nxp.com>
 M:	Roy Zang <roy.zang@nxp.com>
 L:	linuxppc-dev@lists.ozlabs.org
 L:	linux-pci@vger.kernel.org
-L:	linux-arm-kernel@lists.infradead.org
+L:	linux-arm-kernel@lists.infradead.org (moderated for non-subscribers)
 S:	Maintained
 F:	drivers/pci/controller/dwc/*layerscape*
 
@@ -14386,7 +14386,7 @@ F:	drivers/pci/controller/pci-tegra.c
 PCI DRIVER FOR NXP LAYERSCAPE GEN4 CONTROLLER
 M:	Hou Zhiqiang <Zhiqiang.Hou@nxp.com>
 L:	linux-pci@vger.kernel.org
-L:	linux-arm-kernel@lists.infradead.org
+L:	linux-arm-kernel@lists.infradead.org (moderated for non-subscribers)
 S:	Maintained
 F:	Documentation/devicetree/bindings/pci/layerscape-pcie-gen4.txt
 F:	drivers/pci/controller/mobiveil/pcie-layerscape-gen4.c
@@ -14421,7 +14421,7 @@ PCI DRIVER FOR TI DRA7XX/J721E
 M:	Kishon Vijay Abraham I <kishon@ti.com>
 L:	linux-omap@vger.kernel.org
 L:	linux-pci@vger.kernel.org
-L:	linux-arm-kernel@lists.infradead.org
+L:	linux-arm-kernel@lists.infradead.org (moderated for non-subscribers)
 S:	Supported
 F:	Documentation/devicetree/bindings/pci/ti-pci.txt
 F:	drivers/pci/controller/cadence/pci-j721e.c
@@ -14477,7 +14477,7 @@ F:	drivers/pci/controller/pcie-altera-msi.c
 PCI MSI DRIVER FOR APPLIEDMICRO XGENE
 M:	Toan Le <toan@os.amperecomputing.com>
 L:	linux-pci@vger.kernel.org
-L:	linux-arm-kernel@lists.infradead.org
+L:	linux-arm-kernel@lists.infradead.org (moderated for non-subscribers)
 S:	Maintained
 F:	Documentation/devicetree/bindings/pci/xgene-pci-msi.txt
 F:	drivers/pci/controller/pci-xgene-msi.c
@@ -14994,7 +14994,7 @@ F:	include/linux/dtpm.h
 POWER STATE COORDINATION INTERFACE (PSCI)
 M:	Mark Rutland <mark.rutland@arm.com>
 M:	Lorenzo Pieralisi <lorenzo.pieralisi@arm.com>
-L:	linux-arm-kernel@lists.infradead.org
+L:	linux-arm-kernel@lists.infradead.org (moderated for non-subscribers)
 S:	Maintained
 F:	drivers/firmware/psci/
 F:	include/linux/psci.h
@@ -15519,7 +15519,7 @@ F:	arch/hexagon/
 
 QUALCOMM HIDMA DRIVER
 M:	Sinan Kaya <okaya@kernel.org>
-L:	linux-arm-kernel@lists.infradead.org
+L:	linux-arm-kernel@lists.infradead.org (moderated for non-subscribers)
 L:	linux-arm-msm@vger.kernel.org
 L:	dmaengine@vger.kernel.org
 S:	Supported
@@ -17233,7 +17233,7 @@ SECURE MONITOR CALL(SMC) CALLING CONVENTION (SMCCC)
 M:	Mark Rutland <mark.rutland@arm.com>
 M:	Lorenzo Pieralisi <lorenzo.pieralisi@arm.com>
 M:	Sudeep Holla <sudeep.holla@arm.com>
-L:	linux-arm-kernel@lists.infradead.org
+L:	linux-arm-kernel@lists.infradead.org (moderated for non-subscribers)
 S:	Maintained
 F:	drivers/firmware/smccc/
 F:	include/linux/arm-smccc.h
@@ -17350,7 +17350,7 @@ F:	drivers/media/pci/solo6x10/
 
 SOFTWARE DELEGATED EXCEPTION INTERFACE (SDEI)
 M:	James Morse <james.morse@arm.com>
-L:	linux-arm-kernel@lists.infradead.org
+L:	linux-arm-kernel@lists.infradead.org (moderated for non-subscribers)
 S:	Maintained
 F:	Documentation/devicetree/bindings/arm/firmware/sdei.txt
 F:	drivers/firmware/arm_sdei.c
@@ -18137,7 +18137,7 @@ F:	drivers/mfd/syscon.c
 SYSTEM CONTROL & POWER/MANAGEMENT INTERFACE (SCPI/SCMI) Message Protocol drivers
 M:	Sudeep Holla <sudeep.holla@arm.com>
 R:	Cristian Marussi <cristian.marussi@arm.com>
-L:	linux-arm-kernel@lists.infradead.org
+L:	linux-arm-kernel@lists.infradead.org (moderated for non-subscribers)
 S:	Maintained
 F:	Documentation/devicetree/bindings/firmware/arm,sc[mp]i.yaml
 F:	drivers/clk/clk-sc[mp]i.c
@@ -18510,7 +18510,7 @@ TEXAS INSTRUMENTS' SYSTEM CONTROL INTERFACE (TISCI) PROTOCOL DRIVER
 M:	Nishanth Menon <nm@ti.com>
 M:	Tero Kristo <kristo@kernel.org>
 M:	Santosh Shilimkar <ssantosh@kernel.org>
-L:	linux-arm-kernel@lists.infradead.org
+L:	linux-arm-kernel@lists.infradead.org (moderated for non-subscribers)
 S:	Maintained
 F:	Documentation/devicetree/bindings/arm/keystone/ti,k3-sci-common.yaml
 F:	Documentation/devicetree/bindings/arm/keystone/ti,sci.txt

arch/arm/Kconfig

@@ -124,7 +124,6 @@ config ARM
 	select PCI_SYSCALL if PCI
 	select PERF_USE_VMALLOC
 	select RTC_LIB
-	select SET_FS
 	select SYS_SUPPORTS_APM_EMULATION
 	select TRACE_IRQFLAGS_SUPPORT if !CPU_V7M
 	# Above selects are sorted alphabetically; please add new ones

arch/arm/Makefile

@@ -308,7 +308,8 @@ $(BOOT_TARGETS): vmlinux
 	@$(kecho) '  Kernel: $(boot)/$@ is ready'
 
 $(INSTALL_TARGETS):
-	$(Q)$(MAKE) $(build)=$(boot) MACHINE=$(MACHINE) $@
+	$(CONFIG_SHELL) $(srctree)/$(boot)/install.sh "$(KERNELRELEASE)" \
+	$(boot)/$(patsubst %install,%Image,$@) System.map "$(INSTALL_PATH)"
 
 PHONY += vdso_install
 vdso_install:

arch/arm/boot/Makefile

@@ -96,23 +96,11 @@ $(obj)/bootp/bootp: $(obj)/zImage initrd FORCE
 $(obj)/bootpImage: $(obj)/bootp/bootp FORCE
 	$(call if_changed,objcopy)
 
-PHONY += initrd install zinstall uinstall
+PHONY += initrd
 initrd:
 	@test "$(INITRD_PHYS)" != "" || \
 	(echo This machine does not support INITRD; exit -1)
 	@test "$(INITRD)" != "" || \
 	(echo You must specify INITRD; exit -1)
 
-install:
-	$(CONFIG_SHELL) $(srctree)/$(src)/install.sh "$(KERNELRELEASE)" \
-	$(obj)/Image System.map "$(INSTALL_PATH)"
-
-zinstall:
-	$(CONFIG_SHELL) $(srctree)/$(src)/install.sh "$(KERNELRELEASE)" \
-	$(obj)/zImage System.map "$(INSTALL_PATH)"
-
-uinstall:
-	$(CONFIG_SHELL) $(srctree)/$(src)/install.sh "$(KERNELRELEASE)" \
-	$(obj)/uImage System.map "$(INSTALL_PATH)"
-
 subdir-	    := bootp compressed dts

arch/arm/boot/compressed/Makefile

@@ -85,6 +85,8 @@ compress-$(CONFIG_KERNEL_LZ4)  = lz4
 libfdt_objs := fdt_rw.o fdt_ro.o fdt_wip.o fdt.o
 
 ifeq ($(CONFIG_ARM_ATAG_DTB_COMPAT),y)
+CFLAGS_REMOVE_atags_to_fdt.o += -Wframe-larger-than=${CONFIG_FRAME_WARN}
+CFLAGS_atags_to_fdt.o += -Wframe-larger-than=1280
 OBJS	+= $(libfdt_objs) atags_to_fdt.o
 endif
 ifeq ($(CONFIG_USE_OF),y)

arch/arm/include/asm/div64.h

@@ -52,17 +52,6 @@ static inline uint32_t __div64_32(uint64_t *n, uint32_t base)
 
 #else
 
-/*
- * gcc versions earlier than 4.0 are simply too problematic for the
- * __div64_const32() code in asm-generic/div64.h. First there is
- * gcc PR 15089 that tend to trig on more complex constructs, spurious
- * .global __udivsi3 are inserted even if none of those symbols are
- * referenced in the generated code, and those gcc versions are not able
- * to do constant propagation on long long values anyway.
- */
-
-#define __div64_const32_is_OK (__GNUC__ >= 4)
-
 static inline uint64_t __arch_xprod_64(uint64_t m, uint64_t n, bool bias)
 {
 	unsigned long long res;

arch/arm/include/asm/gpio.h

@@ -2,10 +2,6 @@
 #ifndef _ARCH_ARM_GPIO_H
 #define _ARCH_ARM_GPIO_H
 
-#if CONFIG_ARCH_NR_GPIO > 0
-#define ARCH_NR_GPIOS CONFIG_ARCH_NR_GPIO
-#endif
-
 /* Note: this may rely upon the value of ARCH_NR_GPIOS set in mach/gpio.h */
 #include <asm-generic/gpio.h>
 

arch/arm/include/asm/ptrace.h

@@ -19,7 +19,6 @@ struct pt_regs {
 struct svc_pt_regs {
 	struct pt_regs regs;
 	u32 dacr;
-	u32 addr_limit;
 };
 
 #define to_svc_pt_regs(r) container_of(r, struct svc_pt_regs, regs)

arch/arm/include/asm/syscall.h

@@ -22,7 +22,21 @@ extern const unsigned long sys_call_table[];
 static inline int syscall_get_nr(struct task_struct *task,
 				 struct pt_regs *regs)
 {
-	return task_thread_info(task)->syscall;
+	if (IS_ENABLED(CONFIG_AEABI) && !IS_ENABLED(CONFIG_OABI_COMPAT))
+		return task_thread_info(task)->abi_syscall;
+
+	return task_thread_info(task)->abi_syscall & __NR_SYSCALL_MASK;
+}
+
+static inline bool __in_oabi_syscall(struct task_struct *task)
+{
+	return IS_ENABLED(CONFIG_OABI_COMPAT) &&
+		(task_thread_info(task)->abi_syscall & __NR_OABI_SYSCALL_BASE);
+}
+
+static inline bool in_oabi_syscall(void)
+{
+	return __in_oabi_syscall(current);
 }
 
 static inline void syscall_rollback(struct task_struct *task,

arch/arm/include/asm/thread_info.h

@@ -31,8 +31,6 @@ struct task_struct;
 
 #include <asm/types.h>
 
-typedef unsigned long mm_segment_t;
-
 struct cpu_context_save {
 	__u32	r4;
 	__u32	r5;
@@ -54,15 +52,14 @@ struct cpu_context_save {
 struct thread_info {
 	unsigned long		flags;		/* low level flags */
 	int			preempt_count;	/* 0 => preemptable, <0 => bug */
-	mm_segment_t		addr_limit;	/* address limit */
 	struct task_struct	*task;		/* main task structure */
 	__u32			cpu;		/* cpu */
 	__u32			cpu_domain;	/* cpu domain */
 #ifdef CONFIG_STACKPROTECTOR_PER_TASK
 	unsigned long		stack_canary;
 #endif
 	struct cpu_context_save	cpu_context;	/* cpu context */
-	__u32			syscall;	/* syscall number */
+	__u32			abi_syscall;	/* ABI type and syscall nr */
 	__u8			used_cp[16];	/* thread used copro */
 	unsigned long		tp_value[2];	/* TLS registers */
 	union fp_state		fpstate __attribute__((aligned(8)));
@@ -77,7 +74,6 @@ struct thread_info {
 	.task		= &tsk,						\
 	.flags		= 0,						\
 	.preempt_count	= INIT_PREEMPT_COUNT,				\
-	.addr_limit	= KERNEL_DS,					\
 }
 
 /*