Merge tag 'mips_5.19' of git://git.kernel.org/pub/scm/linux/kernel/git/mips/linux

Pull MIPS updates from Thomas Bogendoerfer:
 "Cleanups and fixes"

* tag 'mips_5.19' of git://git.kernel.org/pub/scm/linux/kernel/git/mips/linux: (38 commits)
  MIPS: RALINK: Define pci_remap_iospace under CONFIG_PCI_DRIVERS_GENERIC
  MIPS: Use memblock_add_node() in early_parse_mem() under CONFIG_NUMA
  MIPS: Return -EINVAL if mem parameter is empty in early_parse_mem()
  MIPS: Kconfig: Fix indentation and add endif comment
  MIPS: bmips: Fix compiler warning observed on W=1 build
  MIPS: Rewrite `csum_tcpudp_nofold' in plain C
  mips: setup: use strscpy to replace strlcpy
  MIPS: Octeon: add SNIC10E board
  MIPS: Ingenic: Refresh defconfig for CU1000-Neo and CU1830-Neo.
  MIPS: Ingenic: Refresh device tree for Ingenic SoCs and boards.
  MIPS: Ingenic: Add PWM nodes for X1830.
  MIPS: Octeon: fix typo in comment
  MIPS: loongson32: Kconfig: Remove extra space
  MIPS: Sibyte: remove unnecessary return variable
  MIPS: Use NOKPROBE_SYMBOL() instead of __kprobes annotation
  selftests/ftrace: Save kprobe_events to test log
  MIPS: tools: no need to initialise statics to 0
  MIPS: Loongson: Use hwmon_device_register_with_groups() to register hwmon
  MIPS: VR41xx: Drop redundant spinlock initialization
  MIPS: smp: optimization for flush_tlb_mm when exiting
  ...

arch/mips/Kconfig

@@ -1321,11 +1321,11 @@ config CPU_LOONGSON64
 	select SWIOTLB
 	select HAVE_KVM
 	help
-		The Loongson GSx64(GS264/GS464/GS464E/GS464V) series of processor
-		cores implements the MIPS64R2 instruction set with many extensions,
-		including most 64-bit Loongson-2 (2H, 2K) and Loongson-3 (3A1000,
-		3B1000, 3B1500, 3A2000, 3A3000 and 3A4000) processors. However, old
-		Loongson-2E/2F is not covered here and will be removed in future.
+	  The Loongson GSx64(GS264/GS464/GS464E/GS464V) series of processor
+	  cores implements the MIPS64R2 instruction set with many extensions,
+	  including most 64-bit Loongson-2 (2H, 2K) and Loongson-3 (3A1000,
+	  3B1000, 3B1500, 3A2000, 3A3000 and 3A4000) processors. However, old
+	  Loongson-2E/2F is not covered here and will be removed in future.
 
 config LOONGSON3_ENHANCEMENT
 	bool "New Loongson-3 CPU Enhancements"
@@ -3255,7 +3255,7 @@ menu "CPU Power Management"
 
 if CPU_SUPPORTS_CPUFREQ && MIPS_EXTERNAL_TIMER
 source "drivers/cpufreq/Kconfig"
-endif
+endif # CPU_SUPPORTS_CPUFREQ && MIPS_EXTERNAL_TIMER
 
 source "drivers/cpuidle/Kconfig"
 

arch/mips/alchemy/common/dbdma.c

@@ -574,7 +574,7 @@ u32 au1xxx_dbdma_ring_alloc(u32 chanid, int entries)
 		dp++;
 	}
 
-	/* Make last descrptor point to the first. */
+	/* Make last descriptor point to the first. */
 	dp--;
 	dp->dscr_nxtptr = DSCR_NXTPTR(virt_to_phys(ctp->chan_desc_base));
 	ctp->get_ptr = ctp->put_ptr = ctp->cur_ptr = ctp->chan_desc_base;

arch/mips/bmips/dma.c

 // SPDX-License-Identifier: GPL-2.0+
 
 #include <linux/types.h>
+#include <linux/dma-map-ops.h>
 #include <asm/bmips.h>
 #include <asm/io.h>
 

arch/mips/boot/dts/brcm/bcm97358svmb.dts

@@ -78,7 +78,7 @@ &nand {
 &qspi {
 	status = "okay";
 
-	m25p80@0 {
+	flash@0 {
 		compatible = "m25p80";
 		reg = <0>;
 		spi-max-frequency = <40000000>;

arch/mips/boot/dts/brcm/bcm97360svmb.dts

@@ -81,7 +81,7 @@ &sdhci0 {
 &qspi {
 	status = "okay";
 
-	m25p80@0 {
+	flash@0 {
 		compatible = "m25p80";
 		reg = <0>;
 		spi-max-frequency = <40000000>;

arch/mips/boot/dts/brcm/bcm97425svmb.dts

@@ -116,7 +116,7 @@ &sdhci1 {
 &qspi {
 	status = "okay";
 
-	m25p80@0 {
+	flash@0 {
 		compatible = "m25p80";
 		reg = <0>;
 		spi-max-frequency = <40000000>;

arch/mips/boot/dts/ingenic/cu1000-neo.dts

@@ -31,42 +31,6 @@ led-0 {
 		};
 	};
 
-	ssi: spi-gpio {
-		compatible = "spi-gpio";
-		#address-cells = <1>;
-		#size-cells = <0>;
-		num-chipselects = <1>;
-
-		mosi-gpios = <&gpd 2 GPIO_ACTIVE_HIGH>;
-		miso-gpios = <&gpd 3 GPIO_ACTIVE_HIGH>;
-		sck-gpios = <&gpd 0 GPIO_ACTIVE_HIGH>;
-		cs-gpios = <&gpd 1 GPIO_ACTIVE_HIGH>;
-
-		status = "okay";
-
-		spi-max-frequency = <50000000>;
-
-		sc16is752: expander@0 {
-			compatible = "nxp,sc16is752";
-			reg = <0>; /* CE0 */
-			spi-max-frequency = <4000000>;
-
-			clocks = <&exclk_sc16is752>;
-
-			interrupt-parent = <&gpc>;
-			interrupts = <6 IRQ_TYPE_EDGE_FALLING>;
-
-			gpio-controller;
-			#gpio-cells = <2>;
-
-			exclk_sc16is752: sc16is752 {
-				compatible = "fixed-clock";
-				#clock-cells = <0>;
-				clock-frequency = <48000000>;
-			};
-		};
-	};
-
 	wlan_pwrseq: msc1-pwrseq {
 		compatible = "mmc-pwrseq-simple";
 
@@ -90,7 +54,7 @@ &cgu {
 
 &ost {
 	/* 1500 kHz for the system timer and clocksource */
-	assigned-clocks = <&ost OST_CLK_PERCPU_TIMER>, <&ost OST_CLK_GLOBAL_TIMER>;
+	assigned-clocks = <&ost OST_CLK_EVENT_TIMER>, <&ost OST_CLK_GLOBAL_TIMER>;
 	assigned-clock-rates = <1500000>, <1500000>;
 };
 
@@ -101,6 +65,39 @@ &uart2 {
 	pinctrl-0 = <&pins_uart2>;
 };
 
+&ssi {
+	status = "okay";
+
+	num-cs = <2>;
+	cs-gpios = <0>, <&gpc 20 GPIO_ACTIVE_LOW>;
+
+	pinctrl-names = "default";
+	pinctrl-0 = <&pins_ssi>;
+
+	sc16is752: expander@0 {
+		compatible = "nxp,sc16is752";
+		reg = <0>; /* CE0 */
+
+		spi-rx-bus-width = <1>;
+		spi-tx-bus-width = <1>;
+		spi-max-frequency = <4000000>;
+
+		clocks = <&exclk_sc16is752>;
+
+		interrupt-parent = <&gpc>;
+		interrupts = <6 IRQ_TYPE_EDGE_FALLING>;
+
+		gpio-controller;
+		#gpio-cells = <2>;
+
+		exclk_sc16is752: sc16is752 {
+			compatible = "fixed-clock";
+			#clock-cells = <0>;
+			clock-frequency = <48000000>;
+		};
+	};
+};
+
 &i2c0 {
 	status = "okay";
 
@@ -192,6 +189,12 @@ pins_uart2: uart2 {
 		bias-pull-up;
 	};
 
+	pins_ssi: ssi {
+		function = "ssi";
+		groups = "ssi-dt-d", "ssi-dr-d", "ssi-clk-d", "ssi-ce0-d";
+		bias-disable;
+	};
+
 	pins_i2c0: i2c0 {
 		function = "i2c0";
 		groups = "i2c0-data";

arch/mips/boot/dts/ingenic/cu1830-neo.dts

@@ -31,42 +31,6 @@ led-0 {
 		};
 	};
 
-	ssi0: spi-gpio {
-		compatible = "spi-gpio";
-		#address-cells = <1>;
-		#size-cells = <0>;
-		num-chipselects = <1>;
-
-		mosi-gpios = <&gpc 12 GPIO_ACTIVE_HIGH>;
-		miso-gpios = <&gpc 11 GPIO_ACTIVE_HIGH>;
-		sck-gpios = <&gpc 15 GPIO_ACTIVE_HIGH>;
-		cs-gpios = <&gpc 16 GPIO_ACTIVE_HIGH>;
-
-		status = "okay";
-
-		spi-max-frequency = <50000000>;
-
-		sc16is752: expander@0 {
-			compatible = "nxp,sc16is752";
-			reg = <0>; /* CE0 */
-			spi-max-frequency = <4000000>;
-
-			clocks = <&exclk_sc16is752>;
-
-			interrupt-parent = <&gpb>;
-			interrupts = <18 IRQ_TYPE_EDGE_FALLING>;
-
-			gpio-controller;
-			#gpio-cells = <2>;
-
-			exclk_sc16is752: sc16is752 {
-				compatible = "fixed-clock";
-				#clock-cells = <0>;
-				clock-frequency = <48000000>;
-			};
-		};
-	};
-
 	wlan_pwrseq: msc1-pwrseq {
 		compatible = "mmc-pwrseq-simple";
 
@@ -90,7 +54,7 @@ &cgu {
 
 &ost {
 	/* 1500 kHz for the system timer and clocksource */
-	assigned-clocks = <&ost OST_CLK_PERCPU_TIMER>, <&ost OST_CLK_GLOBAL_TIMER>;
+	assigned-clocks = <&ost OST_CLK_EVENT_TIMER>, <&ost OST_CLK_GLOBAL_TIMER>;
 	assigned-clock-rates = <1500000>, <1500000>;
 };
 
@@ -101,6 +65,38 @@ &uart1 {
 	pinctrl-0 = <&pins_uart1>;
 };
 
+&ssi0 {
+	status = "okay";
+
+	num-cs = <2>;
+
+	pinctrl-names = "default";
+	pinctrl-0 = <&pins_ssi0>;
+
+	sc16is752: expander@0 {
+		compatible = "nxp,sc16is752";
+		reg = <0>; /* CE0 */
+
+		spi-rx-bus-width = <1>;
+		spi-tx-bus-width = <1>;
+		spi-max-frequency = <4000000>;
+
+		clocks = <&exclk_sc16is752>;
+
+		interrupt-parent = <&gpb>;
+		interrupts = <18 IRQ_TYPE_EDGE_FALLING>;
+
+		gpio-controller;
+		#gpio-cells = <2>;
+
+		exclk_sc16is752: sc16is752 {
+			compatible = "fixed-clock";
+			#clock-cells = <0>;
+			clock-frequency = <48000000>;
+		};
+	};
+};
+
 &i2c0 {
 	status = "okay";
 
@@ -196,6 +192,12 @@ pins_uart1: uart1 {
 		bias-pull-up;
 	};
 
+	pins_ssi0: ssi0 {
+		function = "ssi0";
+		groups = "ssi0-dt", "ssi0-dr", "ssi0-clk", "ssi0-ce0", "ssi0-ce1";
+		bias-disable;
+	};
+
 	pins_i2c0: i2c0 {
 		function = "i2c0";
 		groups = "i2c0-data";

arch/mips/boot/dts/ingenic/x1000.dtsi

@@ -127,6 +127,18 @@ wdt: watchdog@0 {
 			clocks = <&tcu TCU_CLK_WDT>;
 			clock-names = "wdt";
 		};
+
+		pwm: pwm@40 {
+			compatible = "ingenic,x1000-pwm";
+			reg = <0x40 0x50>;
+
+			#pwm-cells = <3>;
+
+			clocks = <&tcu TCU_CLK_TIMER0>, <&tcu TCU_CLK_TIMER1>,
+				 <&tcu TCU_CLK_TIMER2>, <&tcu TCU_CLK_TIMER3>,
+				 <&tcu TCU_CLK_TIMER4>;
+			clock-names = "timer0", "timer1", "timer2", "timer3", "timer4";
+		};
 	};
 
 	rtc: rtc@10003000 {
@@ -246,6 +258,25 @@ uart2: serial@10032000 {
 		status = "disabled";
 	};
 
+	ssi: spi@10043000 {
+		compatible = "ingenic,x1000-spi";
+		reg = <0x10043000 0x20>;
+		#address-cells = <1>;
+		#size-cells = <0>;
+
+		interrupt-parent = <&intc>;
+		interrupts = <8>;
+
+		clocks = <&cgu X1000_CLK_SSI>;
+		clock-names = "spi";
+
+		dmas = <&pdma X1000_DMA_SSI0_RX 0xffffffff>,
+			   <&pdma X1000_DMA_SSI0_TX 0xffffffff>;
+		dma-names = "rx", "tx";
+
+		status = "disabled";
+	};
+
 	i2c0: i2c-controller@10050000 {
 		compatible = "ingenic,x1000-i2c";
 		reg = <0x10050000 0x1000>;
@@ -291,6 +322,7 @@ i2c2: i2c-controller@10052000 {
 	pdma: dma-controller@13420000 {
 		compatible = "ingenic,x1000-dma";
 		reg = <0x13420000 0x400>, <0x13421000 0x40>;
+
 		#dma-cells = <2>;
 
 		interrupt-parent = <&intc>;

arch/mips/boot/dts/ingenic/x1830.dtsi

@@ -120,6 +120,20 @@ wdt: watchdog@0 {
 			clocks = <&tcu TCU_CLK_WDT>;
 			clock-names = "wdt";
 		};
+
+		pwm: pwm@40 {
+			compatible = "ingenic,x1830-pwm", "ingenic,jz4740-pwm";
+			reg = <0x40 0x80>;
+
+			#pwm-cells = <3>;
+
+			clocks = <&tcu TCU_CLK_TIMER0>, <&tcu TCU_CLK_TIMER1>,
+				 <&tcu TCU_CLK_TIMER2>, <&tcu TCU_CLK_TIMER3>,
+				 <&tcu TCU_CLK_TIMER4>, <&tcu TCU_CLK_TIMER5>,
+				 <&tcu TCU_CLK_TIMER6>, <&tcu TCU_CLK_TIMER7>;
+			clock-names = "timer0", "timer1", "timer2", "timer3",
+				      "timer4", "timer5", "timer6", "timer7";
+		};
 	};
 
 	rtc: rtc@10003000 {
@@ -226,6 +240,44 @@ uart1: serial@10031000 {
 		status = "disabled";
 	};
 
+	ssi0: spi@10043000 {
+		compatible = "ingenic,x1830-spi", "ingenic,x1000-spi";
+		reg = <0x10043000 0x20>;
+		#address-cells = <1>;
+		#size-cells = <0>;
+
+		interrupt-parent = <&intc>;
+		interrupts = <9>;
+
+		clocks = <&cgu X1830_CLK_SSI0>;
+		clock-names = "spi";
+
+		dmas = <&pdma X1830_DMA_SSI0_RX 0xffffffff>,
+			   <&pdma X1830_DMA_SSI0_TX 0xffffffff>;
+		dma-names = "rx", "tx";
+
+		status = "disabled";
+	};
+
+	ssi1: spi@10044000 {
+		compatible = "ingenic,x1830-spi", "ingenic,x1000-spi";
+		reg = <0x10044000 0x20>;
+		#address-cells = <1>;
+		#size-cells = <0>;
+
+		interrupt-parent = <&intc>;
+		interrupts = <8>;
+
+		clocks = <&cgu X1830_CLK_SSI1>;
+		clock-names = "spi";
+
+		dmas = <&pdma X1830_DMA_SSI1_RX 0xffffffff>,
+			   <&pdma X1830_DMA_SSI1_TX 0xffffffff>;
+		dma-names = "rx", "tx";
+
+		status = "disabled";
+	};
+
 	i2c0: i2c-controller@10050000 {
 		compatible = "ingenic,x1830-i2c", "ingenic,x1000-i2c";
 		reg = <0x10050000 0x1000>;
@@ -280,6 +332,7 @@ dtrng: trng@10072000 {
 	pdma: dma-controller@13420000 {
 		compatible = "ingenic,x1830-dma";
 		reg = <0x13420000 0x400>, <0x13421000 0x40>;
+
 		#dma-cells = <2>;
 
 		interrupt-parent = <&intc>;

arch/mips/boot/dts/mscc/jaguar2_pcb110.dts

@@ -180,27 +180,27 @@ synce_builtin_pins: synce-builtin-pins {
 		pins = "GPIO_49";
 		function = "si";
 	};
-	i2cmux_pins_i: i2cmux-pins-i {
+	i2cmux_pins_i: i2cmux-pins {
 		pins = "GPIO_17", "GPIO_18", "GPIO_20", "GPIO_21";
 		function = "twi_scl_m";
 		output-low;
 	};
-	i2cmux_0: i2cmux-0 {
+	i2cmux_0: i2cmux-0-pins {
 		pins = "GPIO_17";
 		function = "twi_scl_m";
 		output-high;
 	};
-	i2cmux_1: i2cmux-1 {
+	i2cmux_1: i2cmux-1-pins {
 		pins = "GPIO_18";
 		function = "twi_scl_m";
 		output-high;
 	};
-	i2cmux_2: i2cmux-2 {
+	i2cmux_2: i2cmux-2-pins {
 		pins = "GPIO_20";
 		function = "twi_scl_m";
 		output-high;
 	};
-	i2cmux_3: i2cmux-3 {
+	i2cmux_3: i2cmux-3-pins {
 		pins = "GPIO_21";
 		function = "twi_scl_m";
 		output-high;

arch/mips/boot/dts/mscc/jaguar2_pcb111.dts

@@ -79,27 +79,27 @@ cpld_fifo_pins: synce-builtin-pins {
 };
 
 &gpio {
-	i2cmux_pins_i: i2cmux-pins-i {
+	i2cmux_pins_i: i2cmux-pins {
 		pins = "GPIO_17", "GPIO_18";
 		function = "twi_scl_m";
 		output-low;
 	};
-	i2cmux_0: i2cmux-0 {
+	i2cmux_0: i2cmux-0-pins {
 		pins = "GPIO_17";
 		function = "twi_scl_m";
 		output-high;
 	};
-	i2cmux_1: i2cmux-1 {
+	i2cmux_1: i2cmux-1-pins {
 		pins = "GPIO_18";
 		function = "twi_scl_m";
 		output-high;
 	};
-	i2cmux_2: i2cmux-2 {
+	i2cmux_2: i2cmux-2-pins {
 		pins = "GPIO_20";
 		function = "twi_scl_m";
 		output-high;
 	};
-	i2cmux_3: i2cmux-3 {
+	i2cmux_3: i2cmux-3-pins {
 		pins = "GPIO_21";
 		function = "twi_scl_m";
 		output-high;

arch/mips/boot/dts/mscc/jaguar2_pcb118.dts

@@ -39,17 +39,17 @@ i2c151: i2c@1 {
 };
 
 &gpio {
-	i2cmux_pins_i: i2cmux-pins-i {
+	i2cmux_pins_i: i2cmux-pins {
 		pins = "GPIO_17", "GPIO_16";
 		function = "twi_scl_m";
 		output-low;
 	};
-	i2cmux_0: i2cmux-0 {
+	i2cmux_0: i2cmux-0-pins {
 		pins = "GPIO_17";
 		function = "twi_scl_m";
 		output-high;
 	};
-	i2cmux_1: i2cmux-1 {
+	i2cmux_1: i2cmux-1-pins {
 		pins = "GPIO_16";
 		function = "twi_scl_m";
 		output-high;

arch/mips/boot/dts/mscc/ocelot.dtsi

@@ -225,7 +225,7 @@ uart2_pins: uart2-pins {
 				function = "uart2";
 			};
 
-			miim1: miim1 {
+			miim1_pins: miim1-pins {
 				pins = "GPIO_14", "GPIO_15";
 				function = "miim";
 			};
@@ -261,7 +261,7 @@ mdio1: mdio@10700c0 {
 			reg = <0x10700c0 0x24>;
 			interrupts = <15>;
 			pinctrl-names = "default";
-			pinctrl-0 = <&miim1>;
+			pinctrl-0 = <&miim1_pins>;
 			status = "disabled";
 		};
 

arch/mips/boot/dts/mscc/ocelot_pcb120.dts

@@ -22,12 +22,12 @@ memory@0 {
 };
 
 &gpio {
-	phy_int_pins: phy_int_pins {
+	phy_int_pins: phy-int-pins {
 		pins = "GPIO_4";
 		function = "gpio";
 	};
 
-	phy_load_save_pins: phy_load_save_pins {
+	phy_load_save_pins: phy-load-save-pins {
 		pins = "GPIO_10";
 		function = "ptp2";
 	};
@@ -40,7 +40,7 @@ &mdio0 {
 &mdio1 {
 	status = "okay";
 	pinctrl-names = "default";
-	pinctrl-0 = <&miim1>, <&phy_int_pins>, <&phy_load_save_pins>;
+	pinctrl-0 = <&miim1_pins>, <&phy_int_pins>, <&phy_load_save_pins>;
 
 	phy7: ethernet-phy@0 {
 		reg = <0>;

arch/mips/boot/dts/mscc/serval_common.dtsi

@@ -82,38 +82,38 @@ i2c_pins: i2c-pins {
 		pins = "GPIO_7"; /* No "default" scl for i2c0 */
 		function = "twi";
 	};
-	i2cmux_pins_i: i2cmux-pins-i {
+	i2cmux_pins_i: i2cmux-pins {
 		pins = "GPIO_11", "GPIO_12", "GPIO_18", "GPIO_19",
 			"GPIO_20", "GPIO_21";
 		function = "twi_scl_m";
 		output-low;
 	};
-	i2cmux_0: i2cmux-0 {
+	i2cmux_0: i2cmux-0-pins {
 		pins = "GPIO_11";
 		function = "twi_scl_m";
 		output-high;
 	};
-	i2cmux_1: i2cmux-1 {
+	i2cmux_1: i2cmux-1-pins {
 		pins = "GPIO_12";
 		function = "twi_scl_m";
 		output-high;
 	};
-	i2cmux_2: i2cmux-2 {
+	i2cmux_2: i2cmux-2-pins {
 		pins = "GPIO_18";
 		function = "twi_scl_m";
 		output-high;
 	};
-	i2cmux_3: i2cmux-3 {
+	i2cmux_3: i2cmux-3-pins {
 		pins = "GPIO_19";
 		function = "twi_scl_m";
 		output-high;
 	};
-	i2cmux_4: i2cmux-4 {
+	i2cmux_4: i2cmux-4-pins {
 		pins = "GPIO_20";
 		function = "twi_scl_m";
 		output-high;
 	};
-	i2cmux_5: i2cmux-5 {
+	i2cmux_5: i2cmux-5-pins {
 		pins = "GPIO_21";
 		function = "twi_scl_m";
 		output-high;

arch/mips/boot/dts/ralink/gardena_smart_gateway_mt7688.dts

@@ -129,7 +129,7 @@ &spi {
 	pinctrl-names = "default";
 	pinctrl-0 = <&pinmux_spi_spi>, <&pinmux_spi_cs1_cs>;
 
-	m25p80@0 {
+	flash@0 {
 		compatible = "jedec,spi-nor";
 		reg = <0>;
 		spi-max-frequency = <40000000>;

arch/mips/boot/dts/ralink/mt7621-gnubee-gb-pc1.dts

@@ -60,7 +60,7 @@ &sdhci {
 &spi0 {
 	status = "okay";
 
-	m25p80@0 {
+	flash@0 {
 		#address-cells = <1>;
 		#size-cells = <1>;
 		compatible = "jedec,spi-nor";
@@ -97,20 +97,15 @@ &pcie {
 	status = "okay";
 };
 
-&pinctrl {
-	pinctrl-names = "default";
-	pinctrl-0 = <&state_default>;
-
-	state_default: state-default {
-		gpio-pinmux {
-			groups = "rgmii2", "uart3", "wdt";
-			function = "gpio";
-		};
-	};
+&gmac1 {
+	status = "okay";
+	phy-handle = <&ethphy4>;
 };
 
-&ethernet {
-	pinctrl-0 = <&mdio_pins>, <&rgmii1_pins>;
+&mdio {
+	ethphy4: ethernet-phy@4 {
+		reg = <4>;
+	};
 };
 
 &switch0 {
@@ -119,10 +114,5 @@ port@0 {
 			status = "okay";
 			label = "ethblack";
 		};
-
-		port@4 {
-			status = "okay";
-			label = "ethblue";
-		};
 	};
 };

arch/mips/boot/dts/ralink/mt7621-gnubee-gb-pc2.dts

@@ -44,7 +44,7 @@ &sdhci {
 &spi0 {
 	status = "okay";
 
-	m25p80@0 {
+	flash@0 {
 		#address-cells = <1>;
 		#size-cells = <1>;
 		compatible = "jedec,spi-nor";
@@ -81,29 +81,15 @@ &pcie {
 	status = "okay";
 };
 
-&pinctrl {
-	pinctrl-names = "default";
-	pinctrl-0 = <&state_default>;
-
-	state_default: state-default {
-		gpio-pinmux {
-			groups = "wdt";
-			function = "gpio";
-		};
-	};
+&gmac1 {
+	status = "okay";
+	phy-handle = <&ethphy7>;
 };
 
-&ethernet {
-	gmac1: mac@1 {
-		status = "okay";
-		phy-handle = <&ethphy7>;
-	};
-
-	mdio-bus {
-		ethphy7: ethernet-phy@7 {
-			reg = <7>;
-			phy-mode = "rgmii-rxid";
-		};
+&mdio {
+	ethphy7: ethernet-phy@7 {
+		reg = <7>;
+		phy-mode = "rgmii-rxid";
 	};
 };
 

arch/mips/boot/dts/ralink/mt7621.dtsi

@@ -342,7 +342,7 @@ gmac1: mac@1 {
 			phy-mode = "rgmii-rxid";
 		};
 
-		mdio-bus {
+		mdio: mdio-bus {
 			#address-cells = <1>;
 			#size-cells = <0>;
 

arch/mips/boot/tools/relocs.c

@@ -351,7 +351,7 @@ static void read_symtabs(FILE *fp)
 
 static void read_relocs(FILE *fp)
 {
-	static unsigned long base = 0;
+	static unsigned long base;
 	int i, j;
 
 	if (!base) {

arch/mips/cavium-octeon/executive/cvmx-bootmem.c

@@ -318,7 +318,7 @@ int64_t cvmx_bootmem_phy_alloc(uint64_t req_size, uint64_t address_min,
 		}
 
 		/*
-		 * Determine if this is an entry that can satisify the
+		 * Determine if this is an entry that can satisfy the
 		 * request Check to make sure entry is large enough to
 		 * satisfy request.
 		 */

arch/mips/cavium-octeon/executive/cvmx-helper-xaui.c

@@ -156,8 +156,9 @@ int __cvmx_helper_xaui_enable(int interface)
 	xauiCtl.u64 = cvmx_read_csr(CVMX_PCSXX_CONTROL1_REG(interface));
 	xauiCtl.s.lo_pwr = 0;
 
-	/* Issuing a reset here seems to hang some CN68XX chips. */
-	if (!OCTEON_IS_MODEL(OCTEON_CN68XX_PASS1_X) &&
+	/* Issuing a reset here seems to hang some CN66XX/CN68XX chips. */
+	if (!OCTEON_IS_MODEL(OCTEON_CN66XX) &&
+	    !OCTEON_IS_MODEL(OCTEON_CN68XX_PASS1_X) &&
 	    !OCTEON_IS_MODEL(OCTEON_CN68XX_PASS2_X))
 		xauiCtl.s.reset = 1;
 

arch/mips/cavium-octeon/executive/cvmx-helper.c

@@ -61,6 +61,12 @@ int cvmx_helper_get_number_of_interfaces(void)
 {
 	if (OCTEON_IS_MODEL(OCTEON_CN68XX))
 		return 9;
+	if (OCTEON_IS_MODEL(OCTEON_CN66XX)) {
+		if (OCTEON_IS_MODEL(OCTEON_CN66XX_PASS1_0))
+			return 7;
+		else
+			return 8;
+	}
 	if (OCTEON_IS_MODEL(OCTEON_CN56XX) || OCTEON_IS_MODEL(OCTEON_CN52XX))
 		return 4;
 	if (OCTEON_IS_MODEL(OCTEON_CN7XXX))

arch/mips/cavium-octeon/executive/cvmx-pko.c

@@ -377,7 +377,7 @@ cvmx_pko_status_t cvmx_pko_config_port(uint64_t port, uint64_t base_queue,
 			/*
 			 * Check to make sure all static priority
 			 * queues are contiguous.  Also catches some
-			 * cases of static priorites not starting at
+			 * cases of static priorities not starting at
 			 * queue 0.
 			 */
 			if (static_priority_end != -1

arch/mips/cavium-octeon/octeon-irq.c

@@ -1405,7 +1405,7 @@ static void octeon_irq_init_ciu2_percpu(void)
 	 * completed.
 	 *
 	 * There are 9 registers and 3 IPX levels with strides 0x1000
-	 * and 0x200 respectivly.  Use loops to clear them.
+	 * and 0x200 respectively.  Use loops to clear them.
 	 */
 	for (regx = 0; regx <= 0x8000; regx += 0x1000) {
 		for (ipx = 0; ipx <= 0x400; ipx += 0x200)

arch/mips/cavium-octeon/octeon-usb.c

@@ -419,7 +419,7 @@ static int dwc3_octeon_clocks_start(struct device *dev, u64 base)
 	/* Step 5c: Enable SuperSpeed. */
 	uctl_ctl.s.ref_ssp_en = 1;
 
-	/* Step 5d: Cofngiure PHYs. SKIP */
+	/* Step 5d: Configure PHYs. SKIP */
 
 	/* Step 6a & 6b: Power up PHYs. */
 	uctl_ctl.s.hs_power_en = 1;

arch/mips/configs/cu1000-neo_defconfig

@@ -61,7 +61,7 @@ CONFIG_SERIAL_SC16IS7XX_SPI=y
 CONFIG_I2C=y
 CONFIG_I2C_JZ4780=y
 CONFIG_SPI=y
-CONFIG_SPI_GPIO=y
+CONFIG_SPI_INGENIC=y
 CONFIG_GPIO_SYSFS=y
 CONFIG_SENSORS_ADS7828=m
 CONFIG_WATCHDOG=y

arch/mips/configs/cu1830-neo_defconfig

@@ -64,7 +64,7 @@ CONFIG_SERIAL_SC16IS7XX_SPI=y
 CONFIG_I2C=y
 CONFIG_I2C_JZ4780=y
 CONFIG_SPI=y
-CONFIG_SPI_GPIO=y
+CONFIG_SPI_INGENIC=y
 CONFIG_GPIO_SYSFS=y
 CONFIG_SENSORS_ADS7828=m
 CONFIG_WATCHDOG=y

arch/mips/dec/ioasic-irq.c

@@ -68,13 +68,13 @@ static struct irq_chip ioasic_dma_irq_type = {
  * I/O ASIC implements two kinds of DMA interrupts, informational and
  * error interrupts.
  *
- * The formers do not stop DMA and should be cleared as soon as possible
+ * The former do not stop DMA and should be cleared as soon as possible
  * so that if they retrigger before the handler has completed, usually as
  * a side effect of actions taken by the handler, then they are reissued.
  * These use the `handle_edge_irq' handler that clears the request right
  * away.
  *
- * The latters stop DMA and do not resume it until the interrupt has been
+ * The latter stop DMA and do not resume it until the interrupt has been
  * cleared.  This cannot be done until after a corrective action has been
  * taken and this also means they will not retrigger.  Therefore they use
  * the `handle_fasteoi_irq' handler that only clears the request on the

arch/mips/dec/setup.c

@@ -71,7 +71,7 @@ volatile u32 *ioasic_base;
 EXPORT_SYMBOL(ioasic_base);
 
 /*
- * IRQ routing and priority tables.  Priorites are set as follows:
+ * IRQ routing and priority tables.  Priorities are set as follows:
  *
  *		KN01	KN230	KN02	KN02-BA	KN02-CA	KN03
  *

arch/mips/fw/arc/memory.c

@@ -32,7 +32,7 @@ static phys_addr_t prom_mem_size[MAX_PROM_MEM] __initdata;
 static unsigned int nr_prom_mem __initdata;
 
 /*
- * For ARC firmware memory functions the unit of meassuring memory is always
+ * For ARC firmware memory functions the unit of measuring memory is always
  * a 4k page of memory
  */
 #define ARC_PAGE_SHIFT	12

arch/mips/include/asm/checksum.h

@@ -128,48 +128,45 @@ static inline __sum16 ip_fast_csum(const void *iph, unsigned int ihl)
 
 static inline __wsum csum_tcpudp_nofold(__be32 saddr, __be32 daddr,
 					__u32 len, __u8 proto,
-					__wsum sum)
+					__wsum isum)
 {
-	unsigned long tmp = (__force unsigned long)sum;
-
-	__asm__(
-	"	.set	push		# csum_tcpudp_nofold\n"
-	"	.set	noat		\n"
-#ifdef CONFIG_32BIT
-	"	addu	%0, %2		\n"
-	"	sltu	$1, %0, %2	\n"
-	"	addu	%0, $1		\n"
-
-	"	addu	%0, %3		\n"
-	"	sltu	$1, %0, %3	\n"
-	"	addu	%0, $1		\n"
-
-	"	addu	%0, %4		\n"
-	"	sltu	$1, %0, %4	\n"
-	"	addu	%0, $1		\n"
-#endif
-#ifdef CONFIG_64BIT
-	"	daddu	%0, %2		\n"
-	"	daddu	%0, %3		\n"
-	"	daddu	%0, %4		\n"
-	"	dsll32	$1, %0, 0	\n"
-	"	daddu	%0, $1		\n"
-	"	sltu	$1, %0, $1	\n"
-	"	dsra32	%0, %0, 0	\n"
-	"	addu	%0, $1		\n"
-#endif
-	"	.set	pop"
-	: "=r" (tmp)
-	: "0" ((__force unsigned long)daddr),
-	  "r" ((__force unsigned long)saddr),
-#ifdef __MIPSEL__
-	  "r" ((proto + len) << 8),
-#else
-	  "r" (proto + len),
-#endif
-	  "r" ((__force unsigned long)sum));
-
-	return (__force __wsum)tmp;
+	const unsigned int sh32 = IS_ENABLED(CONFIG_64BIT) ? 32 : 0;
+	unsigned long sum = (__force unsigned long)daddr;
+	unsigned long tmp;
+	__u32 osum;
+
+	tmp = (__force unsigned long)saddr;
+	sum += tmp;
+
+	if (IS_ENABLED(CONFIG_32BIT))
+		sum += sum < tmp;
+
+	/*
+	 * We know PROTO + LEN has the sign bit clear, so cast to a signed
+	 * type to avoid an extraneous zero-extension where TMP is 64-bit.
+	 */
+	tmp = (__s32)(proto + len);
+	tmp <<= IS_ENABLED(CONFIG_CPU_LITTLE_ENDIAN) ? 8 : 0;
+	sum += tmp;
+	if (IS_ENABLED(CONFIG_32BIT))
+		sum += sum < tmp;
+
+	tmp = (__force unsigned long)isum;
+	sum += tmp;
+
+	if (IS_ENABLED(CONFIG_32BIT)) {
+		sum += sum < tmp;
+		osum = sum;
+	} else if (IS_ENABLED(CONFIG_64BIT)) {
+		tmp = sum << sh32;
+		sum += tmp;
+		osum = sum < tmp;
+		osum += sum >> sh32;
+	} else {
+		BUILD_BUG();
+	}
+
+	return (__force __wsum)osum;
 }
 #define csum_tcpudp_nofold csum_tcpudp_nofold
 

arch/mips/include/asm/cpu-features.h

@@ -133,6 +133,9 @@
 #  define raw_cpu_has_fpu	0
 # endif
 #else
+# if cpu_has_fpu
+#  error "Forcing `cpu_has_fpu' to non-zero is not supported"
+# endif
 # define raw_cpu_has_fpu	cpu_has_fpu
 #endif
 #ifndef cpu_has_32fpr

arch/mips/include/asm/mach-ip27/cpu-feature-overrides.h

@@ -25,7 +25,6 @@
 #define cpu_has_4kex			1
 #define cpu_has_3k_cache		0
 #define cpu_has_4k_cache		1
-#define cpu_has_fpu			1
 #define cpu_has_nofpuex			0
 #define cpu_has_32fpr			1
 #define cpu_has_counter			1

arch/mips/include/asm/mach-ip30/cpu-feature-overrides.h

@@ -28,7 +28,6 @@
 #define cpu_has_4kex			1
 #define cpu_has_3k_cache		0
 #define cpu_has_4k_cache		1
-#define cpu_has_fpu			1
 #define cpu_has_nofpuex			0
 #define cpu_has_32fpr			1
 #define cpu_has_counter			1

arch/mips/include/asm/mach-ralink/spaces.h

@@ -6,7 +6,9 @@
 #define PCI_IOSIZE	SZ_64K
 #define IO_SPACE_LIMIT	(PCI_IOSIZE - 1)
 
+#ifdef CONFIG_PCI_DRIVERS_GENERIC
 #define pci_remap_iospace pci_remap_iospace
+#endif
 
 #include <asm/mach-generic/spaces.h>
 #endif

arch/mips/include/asm/octeon/cvmx-bootinfo.h

@@ -253,6 +253,7 @@ enum cvmx_board_types_enum {
 	CVMX_BOARD_TYPE_REDWING = 43,
 	CVMX_BOARD_TYPE_NIC68_4 = 44,
 	CVMX_BOARD_TYPE_NIC10E_66 = 45,
+	CVMX_BOARD_TYPE_SNIC10E = 50,
 	CVMX_BOARD_TYPE_MAX,
 
 	/*
@@ -369,6 +370,7 @@ static inline const char *cvmx_board_type_to_string(enum
 		ENUM_BRD_TYPE_CASE(CVMX_BOARD_TYPE_REDWING)
 		ENUM_BRD_TYPE_CASE(CVMX_BOARD_TYPE_NIC68_4)
 		ENUM_BRD_TYPE_CASE(CVMX_BOARD_TYPE_NIC10E_66)
+		ENUM_BRD_TYPE_CASE(CVMX_BOARD_TYPE_SNIC10E)
 		ENUM_BRD_TYPE_CASE(CVMX_BOARD_TYPE_MAX)
 
 			/* Customer boards listed here */

arch/mips/jazz/irq.c

@@ -141,7 +141,7 @@ void __init plat_time_init(void)
 	/*
 	 * Set clock to 100Hz.
 	 *
-	 * The R4030 timer receives an input clock of 1kHz which is divieded by
+	 * The R4030 timer receives an input clock of 1kHz which is divided by
 	 * a programmable 4-bit divider.  This makes it fairly inflexible.
 	 */
 	r4030_write_reg32(JAZZ_TIMER_INTERVAL, 9);

arch/mips/kernel/cmpxchg.c

@@ -22,7 +22,7 @@ unsigned long __xchg_small(volatile void *ptr, unsigned long val, unsigned int s
 
 	/*
 	 * Calculate a shift & mask that correspond to the value we wish to
-	 * exchange within the naturally aligned 4 byte integerthat includes
+	 * exchange within the naturally aligned 4 byte integer that includes
 	 * it.
 	 */
 	shift = (unsigned long)ptr & 0x3;

arch/mips/kernel/cpu-probe.c

@@ -156,7 +156,7 @@ static inline void check_errata(void)
 		/*
 		 * Erratum "RPS May Cause Incorrect Instruction Execution"
 		 * This code only handles VPE0, any SMP/RTOS code
-		 * making use of VPE1 will be responsable for that VPE.
+		 * making use of VPE1 will be responsible for that VPE.
 		 */
 		if ((c->processor_id & PRID_REV_MASK) <= PRID_REV_34K_V1_0_2)
 			write_c0_config7(read_c0_config7() | MIPS_CONF7_RPS);

arch/mips/kernel/idle.c

@@ -228,7 +228,7 @@ void __init check_wait(void)
 			break;
 
 		/*
-		 * Another rev is incremeting c0_count at a reduced clock
+		 * Another rev is incrementing c0_count at a reduced clock
 		 * rate while in WAIT mode.  So we basically have the choice
 		 * between using the cp0 timer as clocksource or avoiding
 		 * the WAIT instruction.  Until more details are known,

arch/mips/kernel/kprobes.c

@@ -44,10 +44,11 @@ static const union mips_instruction breakpoint2_insn = {
 DEFINE_PER_CPU(struct kprobe *, current_kprobe);
 DEFINE_PER_CPU(struct kprobe_ctlblk, kprobe_ctlblk);
 
-static int __kprobes insn_has_delayslot(union mips_instruction insn)
+static int insn_has_delayslot(union mips_instruction insn)
 {
 	return __insn_has_delay_slot(insn);
 }
+NOKPROBE_SYMBOL(insn_has_delayslot);
 
 /*
  * insn_has_ll_or_sc function checks whether instruction is ll or sc
@@ -56,7 +57,7 @@ static int __kprobes insn_has_delayslot(union mips_instruction insn)
  * instructions; cannot do much about breakpoint in the middle of
  * ll/sc pair; it is upto user to avoid those places
  */
-static int __kprobes insn_has_ll_or_sc(union mips_instruction insn)
+static int insn_has_ll_or_sc(union mips_instruction insn)
 {
 	int ret = 0;
 
@@ -72,8 +73,9 @@ static int __kprobes insn_has_ll_or_sc(union mips_instruction insn)
 	}
 	return ret;
 }
+NOKPROBE_SYMBOL(insn_has_ll_or_sc);
 
-int __kprobes arch_prepare_kprobe(struct kprobe *p)
+int arch_prepare_kprobe(struct kprobe *p)
 {
 	union mips_instruction insn;
 	union mips_instruction prev_insn;
@@ -132,26 +134,30 @@ int __kprobes arch_prepare_kprobe(struct kprobe *p)
 out:
 	return ret;
 }
+NOKPROBE_SYMBOL(arch_prepare_kprobe);
 
-void __kprobes arch_arm_kprobe(struct kprobe *p)
+void arch_arm_kprobe(struct kprobe *p)
 {
 	*p->addr = breakpoint_insn;
 	flush_insn_slot(p);
 }
+NOKPROBE_SYMBOL(arch_arm_kprobe);
 
-void __kprobes arch_disarm_kprobe(struct kprobe *p)
+void arch_disarm_kprobe(struct kprobe *p)
 {
 	*p->addr = p->opcode;
 	flush_insn_slot(p);
 }
+NOKPROBE_SYMBOL(arch_disarm_kprobe);
 
-void __kprobes arch_remove_kprobe(struct kprobe *p)
+void arch_remove_kprobe(struct kprobe *p)
 {
 	if (p->ainsn.insn) {
 		free_insn_slot(p->ainsn.insn, 0);
 		p->ainsn.insn = NULL;
 	}
 }
+NOKPROBE_SYMBOL(arch_remove_kprobe);
 
 static void save_previous_kprobe(struct kprobe_ctlblk *kcb)
 {
@@ -257,7 +263,7 @@ static void prepare_singlestep(struct kprobe *p, struct pt_regs *regs,
  * breakpoint trap. In case of branch instructions, the target
  * epc to be restored.
  */
-static void __kprobes resume_execution(struct kprobe *p,
+static void resume_execution(struct kprobe *p,
 				       struct pt_regs *regs,
 				       struct kprobe_ctlblk *kcb)
 {
@@ -268,8 +274,9 @@ static void __kprobes resume_execution(struct kprobe *p,
 		regs->cp0_epc = orig_epc + 4;
 	}
 }
+NOKPROBE_SYMBOL(resume_execution);
 
-static int __kprobes kprobe_handler(struct pt_regs *regs)
+static int kprobe_handler(struct pt_regs *regs)
 {
 	struct kprobe *p;
 	int ret = 0;
@@ -367,6 +374,7 @@ static int __kprobes kprobe_handler(struct pt_regs *regs)
 	return ret;
 
 }
+NOKPROBE_SYMBOL(kprobe_handler);
 
 static inline int post_kprobe_handler(struct pt_regs *regs)
 {
@@ -415,7 +423,7 @@ int kprobe_fault_handler(struct pt_regs *regs, int trapnr)
 /*
  * Wrapper routine for handling exceptions.
  */
-int __kprobes kprobe_exceptions_notify(struct notifier_block *self,
+int kprobe_exceptions_notify(struct notifier_block *self,
 				       unsigned long val, void *data)
 {
 
@@ -446,6 +454,7 @@ int __kprobes kprobe_exceptions_notify(struct notifier_block *self,
 	}
 	return ret;
 }
+NOKPROBE_SYMBOL(kprobe_exceptions_notify);
 
 /*
  * Function return probe trampoline:
@@ -469,7 +478,7 @@ static void __used kretprobe_trampoline_holder(void)
 
 void __kretprobe_trampoline(void);
 
-void __kprobes arch_prepare_kretprobe(struct kretprobe_instance *ri,
+void arch_prepare_kretprobe(struct kretprobe_instance *ri,
 				      struct pt_regs *regs)
 {
 	ri->ret_addr = (kprobe_opcode_t *) regs->regs[31];
@@ -478,11 +487,12 @@ void __kprobes arch_prepare_kretprobe(struct kretprobe_instance *ri,
 	/* Replace the return addr with trampoline addr */
 	regs->regs[31] = (unsigned long)__kretprobe_trampoline;
 }
+NOKPROBE_SYMBOL(arch_prepare_kretprobe);
 
 /*
  * Called when the probe at kretprobe trampoline is hit
  */
-static int __kprobes trampoline_probe_handler(struct kprobe *p,
+static int trampoline_probe_handler(struct kprobe *p,
 						struct pt_regs *regs)
 {
 	instruction_pointer(regs) = __kretprobe_trampoline_handler(regs, NULL);
@@ -493,14 +503,16 @@ static int __kprobes trampoline_probe_handler(struct kprobe *p,
 	 */
 	return 1;
 }
+NOKPROBE_SYMBOL(trampoline_probe_handler);
 
-int __kprobes arch_trampoline_kprobe(struct kprobe *p)
+int arch_trampoline_kprobe(struct kprobe *p)
 {
 	if (p->addr == (kprobe_opcode_t *)__kretprobe_trampoline)
 		return 1;
 
 	return 0;
 }
+NOKPROBE_SYMBOL(arch_trampoline_kprobe);
 
 static struct kprobe trampoline_p = {
 	.addr = (kprobe_opcode_t *)__kretprobe_trampoline,

arch/mips/kernel/mips-cpc.c

@@ -28,6 +28,7 @@ phys_addr_t __weak mips_cpc_default_phys_base(void)
 	cpc_node = of_find_compatible_node(of_root, NULL, "mti,mips-cpc");
 	if (cpc_node) {
 		err = of_address_to_resource(cpc_node, 0, &res);
+		of_node_put(cpc_node);
 		if (!err)
 			return res.start;
 	}

arch/mips/kernel/perf_event_mipsxx.c

@@ -329,7 +329,7 @@ static int mipsxx_pmu_alloc_counter(struct cpu_hw_events *cpuc,
 	for (i = mipspmu.num_counters - 1; i >= 0; i--) {
 		/*
 		 * Note that some MIPS perf events can be counted by both
-		 * even and odd counters, wheresas many other are only by
+		 * even and odd counters, whereas many other are only by
 		 * even _or_ odd counters. This introduces an issue that
 		 * when the former kind of event takes the counter the
 		 * latter kind of event wants to use, then the "counter

arch/mips/kernel/setup.c

@@ -37,6 +37,7 @@
 #include <asm/cdmm.h>
 #include <asm/cpu.h>
 #include <asm/debug.h>
+#include <asm/mmzone.h>
 #include <asm/sections.h>
 #include <asm/setup.h>
 #include <asm/smp-ops.h>
@@ -344,6 +345,11 @@ static int __init early_parse_mem(char *p)
 {
 	phys_addr_t start, size;
 
+	if (!p) {
+		pr_err("mem parameter is empty, do nothing\n");
+		return -EINVAL;
+	}
+
 	/*
 	 * If a user specifies memory size, we
 	 * blow away any automatically generated
@@ -359,7 +365,10 @@ static int __init early_parse_mem(char *p)
 	if (*p == '@')
 		start = memparse(p + 1, &p);
 
-	memblock_add(start, size);
+	if (IS_ENABLED(CONFIG_NUMA))
+		memblock_add_node(start, size, pa_to_nid(start), MEMBLOCK_NONE);
+	else
+		memblock_add(start, size);
 
 	return 0;
 }
@@ -554,7 +563,7 @@ static void __init bootcmdline_init(void)
 	 * unmodified.
 	 */
 	if (IS_ENABLED(CONFIG_CMDLINE_OVERRIDE)) {
-		strlcpy(boot_command_line, builtin_cmdline, COMMAND_LINE_SIZE);
+		strscpy(boot_command_line, builtin_cmdline, COMMAND_LINE_SIZE);
 		return;
 	}
 
@@ -566,7 +575,7 @@ static void __init bootcmdline_init(void)
 	 * boot_command_line to undo anything early_init_dt_scan_chosen() did.
 	 */
 	if (IS_ENABLED(CONFIG_MIPS_CMDLINE_BUILTIN_EXTEND))
-		strlcpy(boot_command_line, builtin_cmdline, COMMAND_LINE_SIZE);
+		strscpy(boot_command_line, builtin_cmdline, COMMAND_LINE_SIZE);
 	else
 		boot_command_line[0] = 0;
 
@@ -628,7 +637,7 @@ static void __init arch_mem_init(char **cmdline_p)
 	memblock_set_bottom_up(true);
 
 	bootcmdline_init();
-	strlcpy(command_line, boot_command_line, COMMAND_LINE_SIZE);
+	strscpy(command_line, boot_command_line, COMMAND_LINE_SIZE);
 	*cmdline_p = command_line;
 
 	parse_early_param();

arch/mips/kernel/smp.c

@@ -518,6 +518,12 @@ static inline void smp_on_each_tlb(void (*func) (void *info), void *info)
 
 void flush_tlb_mm(struct mm_struct *mm)
 {
+	if (!mm)
+		return;
+
+	if (atomic_read(&mm->mm_users) == 0)
+		return;		/* happens as a result of exit_mmap() */
+
 	preempt_disable();
 
 	if (cpu_has_mmid) {

arch/mips/kvm/tlb.c

@@ -153,7 +153,7 @@ EXPORT_SYMBOL_GPL(kvm_vz_host_tlb_inv);
  * kvm_vz_guest_tlb_lookup() - Lookup a guest VZ TLB mapping.
  * @vcpu:	KVM VCPU pointer.
  * @gpa:	Guest virtual address in a TLB mapped guest segment.
- * @gpa:	Ponter to output guest physical address it maps to.
+ * @gpa:	Pointer to output guest physical address it maps to.
  *
  * Converts a guest virtual address in a guest TLB mapped segment to a guest
  * physical address, by probing the guest TLB.

arch/mips/loongson32/Kconfig

@@ -46,7 +46,7 @@ menuconfig CEVT_CSRC_LS1X
 	  If unsure, say N.
 
 choice
-	prompt  "Select clockevent/clocksource"
+	prompt "Select clockevent/clocksource"
 	depends on CEVT_CSRC_LS1X
 	default TIMER_USE_PWM0
 

arch/mips/mm/fault.c

@@ -35,7 +35,7 @@ int show_unhandled_signals = 1;
  * and the problem, and then passes it off to one of the appropriate
  * routines.
  */
-static void __kprobes __do_page_fault(struct pt_regs *regs, unsigned long write,
+static void __do_page_fault(struct pt_regs *regs, unsigned long write,
 	unsigned long address)
 {
 	struct vm_area_struct * vma = NULL;
@@ -322,8 +322,9 @@ static void __kprobes __do_page_fault(struct pt_regs *regs, unsigned long write,
 	}
 #endif
 }
+NOKPROBE_SYMBOL(__do_page_fault);
 
-asmlinkage void __kprobes do_page_fault(struct pt_regs *regs,
+asmlinkage void do_page_fault(struct pt_regs *regs,
 	unsigned long write, unsigned long address)
 {
 	enum ctx_state prev_state;
@@ -332,3 +333,4 @@ asmlinkage void __kprobes do_page_fault(struct pt_regs *regs,
 	__do_page_fault(regs, write, address);
 	exception_exit(prev_state);
 }
+NOKPROBE_SYMBOL(do_page_fault);

arch/mips/net/bpf_jit_comp32.c

@@ -722,7 +722,7 @@ static void emit_atomic_r32(struct jit_context *ctx,
 		  0, JIT_RESERVED_STACK);
 	/*
 	 * Argument 1: dst+off if xchg, otherwise src, passed in register a0
-	 * Argument 2: src if xchg, othersize dst+off, passed in register a1
+	 * Argument 2: src if xchg, otherwise dst+off, passed in register a1
 	 */
 	emit(ctx, move, MIPS_R_T9, dst);
 	if (code == BPF_XCHG) {

arch/mips/pci/pcie-octeon.c

@@ -895,7 +895,7 @@ static int __cvmx_pcie_rc_initialize_gen1(int pcie_port)
 	mem_access_subid.s.nsw = 0;	/* Enable Snoop for Writes. */
 	mem_access_subid.s.ror = 0;	/* Disable Relaxed Ordering for Reads. */
 	mem_access_subid.s.row = 0;	/* Disable Relaxed Ordering for Writes. */
-	mem_access_subid.s.ba = 0;	/* PCIe Adddress Bits <63:34>. */
+	mem_access_subid.s.ba = 0;	/* PCIe Address Bits <63:34>. */
 
 	/*
 	 * Setup mem access 12-15 for port 0, 16-19 for port 1,
@@ -1345,7 +1345,7 @@ static int __cvmx_pcie_rc_initialize_gen2(int pcie_port)
 	mem_access_subid.s.esw = 1;	/* Endian-swap for Writes. */
 	mem_access_subid.s.wtype = 0;	/* "No snoop" and "Relaxed ordering" are not set */
 	mem_access_subid.s.rtype = 0;	/* "No snoop" and "Relaxed ordering" are not set */
-	/* PCIe Adddress Bits <63:34>. */
+	/* PCIe Address Bits <63:34>. */
 	if (OCTEON_IS_MODEL(OCTEON_CN68XX))
 		mem_access_subid.cn68xx.ba = 0;
 	else

arch/mips/pic32/pic32mzda/config.c

@@ -111,7 +111,7 @@ void __init pic32_config_init(void)
 	pic32_reset_status = readl(pic32_conf_base + PIC32_RCON);
 	writel(-1, PIC32_CLR(pic32_conf_base + PIC32_RCON));
 
-	/* Device Inforation */
+	/* Device Information */
 	pr_info("Device Id: 0x%08x, Device Ver: 0x%04x\n",
 		pic32_get_device_id(),
 		pic32_get_device_version());

arch/mips/sgi-ip22/ip22-reset.c

@@ -11,7 +11,6 @@
 #include <linux/interrupt.h>
 #include <linux/kernel.h>
 #include <linux/sched/signal.h>
-#include <linux/notifier.h>
 #include <linux/panic_notifier.h>
 #include <linux/pm.h>
 #include <linux/timer.h>
@@ -41,7 +40,7 @@
 static struct timer_list power_timer, blink_timer, debounce_timer;
 static unsigned long blink_timer_timeout;
 
-#define MACHINE_PANICED		1
+#define MACHINE_PANICKED		1
 #define MACHINE_SHUTTING_DOWN	2
 
 static int machine_state;
@@ -112,7 +111,7 @@ static void debounce(struct timer_list *unused)
 		return;
 	}
 
-	if (machine_state & MACHINE_PANICED)
+	if (machine_state & MACHINE_PANICKED)
 		sgimc->cpuctrl0 |= SGIMC_CCTRL0_SYSINIT;
 
 	enable_irq(SGI_PANEL_IRQ);
@@ -120,7 +119,7 @@ static void debounce(struct timer_list *unused)
 
 static inline void power_button(void)
 {
-	if (machine_state & MACHINE_PANICED)
+	if (machine_state & MACHINE_PANICKED)
 		return;
 
 	if ((machine_state & MACHINE_SHUTTING_DOWN) ||
@@ -167,9 +166,9 @@ static irqreturn_t panel_int(int irq, void *dev_id)
 static int panic_event(struct notifier_block *this, unsigned long event,
 		      void *ptr)
 {
-	if (machine_state & MACHINE_PANICED)
+	if (machine_state & MACHINE_PANICKED)
 		return NOTIFY_DONE;
-	machine_state |= MACHINE_PANICED;
+	machine_state |= MACHINE_PANICKED;
 
 	blink_timer_timeout = PANIC_FREQ;
 	blink_timeout(&blink_timer);

arch/mips/sgi-ip27/ip27-xtalk.c

@@ -53,6 +53,8 @@ static void bridge_platform_create(nasid_t nasid, int widget, int masterwid)
 	}
 	platform_device_add_resources(pdev, &w1_res, 1);
 	platform_device_add_data(pdev, wd, sizeof(*wd));
+	/* platform_device_add_data() duplicates the data */
+	kfree(wd);
 	platform_device_add(pdev);
 
 	bd = kzalloc(sizeof(*bd), GFP_KERNEL);
@@ -83,6 +85,8 @@ static void bridge_platform_create(nasid_t nasid, int widget, int masterwid)
 	bd->io_offset	= offset;
 
 	platform_device_add_data(pdev, bd, sizeof(*bd));
+	/* platform_device_add_data() duplicates the data */
+	kfree(bd);
 	platform_device_add(pdev);
 	pr_info("xtalk:n%d/%x bridge widget\n", nasid, widget);
 	return;

arch/mips/sgi-ip30/ip30-xtalk.c

@@ -63,6 +63,8 @@ static void bridge_platform_create(int widget, int masterwid)
 	}
 	platform_device_add_resources(pdev, &w1_res, 1);
 	platform_device_add_data(pdev, wd, sizeof(*wd));
+	/* platform_device_add_data() duplicates the data */
+	kfree(wd);
 	platform_device_add(pdev);
 
 	bd = kzalloc(sizeof(*bd), GFP_KERNEL);
@@ -92,6 +94,8 @@ static void bridge_platform_create(int widget, int masterwid)
 	bd->io_offset	= IP30_SWIN_BASE(widget);
 
 	platform_device_add_data(pdev, bd, sizeof(*bd));
+	/* platform_device_add_data() duplicates the data */
+	kfree(bd);
 	platform_device_add(pdev);
 	pr_info("xtalk:%x bridge widget\n", widget);
 	return;

arch/mips/sibyte/bcm1480/setup.c

@@ -34,8 +34,6 @@ static char *pass_str;
 
 static int __init setup_bcm1x80_bcm1x55(void)
 {
-	int ret = 0;
-
 	switch (soc_pass) {
 	case K_SYS_REVISION_BCM1480_S0:
 		periph_rev = 1;
@@ -64,7 +62,7 @@ static int __init setup_bcm1x80_bcm1x55(void)
 		break;
 	}
 
-	return ret;
+	return 0;
 }
 
 /* Setup code likely to be common to all SiByte platforms */

arch/mips/tools/loongson3-llsc-check.c

@@ -217,7 +217,7 @@ static int check_code(uint64_t pc, uint32_t *code, size_t sz)
 )
 
 	/*
-	 * Skip the first instructionm allowing check_ll to look backwards
+	 * Skip the first instruction, allowing check_ll to look backwards
 	 * unconditionally.
 	 */
 	advance();

arch/mips/txx9/generic/pci.c

@@ -225,7 +225,7 @@ txx9_alloc_pci_controller(struct pci_controller *pcic,
 static int __init
 txx9_arch_pci_init(void)
 {
-	PCIBIOS_MIN_IO = 0x8000;	/* reseve legacy I/O space */
+	PCIBIOS_MIN_IO = 0x8000;	/* reserve legacy I/O space */
 	return 0;
 }
 arch_initcall(txx9_arch_pci_init);

arch/mips/vr41xx/common/cmu.c

@@ -236,8 +236,6 @@ static int __init vr41xx_cmu_init(void)
 	if (current_cpu_type() == CPU_VR4133)
 		cmuclkmsk2 = cmu_read(CMUCLKMSK2);
 
-	spin_lock_init(&cmu_lock);
-
 	return 0;
 }
 

drivers/platform/mips/cpu_hwmon.c

@@ -55,55 +55,6 @@ int loongson3_cpu_temp(int cpu)
 static int nr_packages;
 static struct device *cpu_hwmon_dev;
 
-static SENSOR_DEVICE_ATTR(name, 0444, NULL, NULL, 0);
-
-static struct attribute *cpu_hwmon_attributes[] = {
-	&sensor_dev_attr_name.dev_attr.attr,
-	NULL
-};
-
-/* Hwmon device attribute group */
-static struct attribute_group cpu_hwmon_attribute_group = {
-	.attrs = cpu_hwmon_attributes,
-};
-
-static ssize_t get_cpu_temp(struct device *dev,
-			struct device_attribute *attr, char *buf);
-static ssize_t cpu_temp_label(struct device *dev,
-			struct device_attribute *attr, char *buf);
-
-static SENSOR_DEVICE_ATTR(temp1_input, 0444, get_cpu_temp, NULL, 1);
-static SENSOR_DEVICE_ATTR(temp1_label, 0444, cpu_temp_label, NULL, 1);
-static SENSOR_DEVICE_ATTR(temp2_input, 0444, get_cpu_temp, NULL, 2);
-static SENSOR_DEVICE_ATTR(temp2_label, 0444, cpu_temp_label, NULL, 2);
-static SENSOR_DEVICE_ATTR(temp3_input, 0444, get_cpu_temp, NULL, 3);
-static SENSOR_DEVICE_ATTR(temp3_label, 0444, cpu_temp_label, NULL, 3);
-static SENSOR_DEVICE_ATTR(temp4_input, 0444, get_cpu_temp, NULL, 4);
-static SENSOR_DEVICE_ATTR(temp4_label, 0444, cpu_temp_label, NULL, 4);
-
-static const struct attribute *hwmon_cputemp[4][3] = {
-	{
-		&sensor_dev_attr_temp1_input.dev_attr.attr,
-		&sensor_dev_attr_temp1_label.dev_attr.attr,
-		NULL
-	},
-	{
-		&sensor_dev_attr_temp2_input.dev_attr.attr,
-		&sensor_dev_attr_temp2_label.dev_attr.attr,
-		NULL
-	},
-	{
-		&sensor_dev_attr_temp3_input.dev_attr.attr,
-		&sensor_dev_attr_temp3_label.dev_attr.attr,
-		NULL
-	},
-	{
-		&sensor_dev_attr_temp4_input.dev_attr.attr,
-		&sensor_dev_attr_temp4_label.dev_attr.attr,
-		NULL
-	}
-};
-
 static ssize_t cpu_temp_label(struct device *dev,
 			struct device_attribute *attr, char *buf)
 {
@@ -121,24 +72,47 @@ static ssize_t get_cpu_temp(struct device *dev,
 	return sprintf(buf, "%d\n", value);
 }
 
-static int create_sysfs_cputemp_files(struct kobject *kobj)
-{
-	int i, ret = 0;
-
-	for (i = 0; i < nr_packages; i++)
-		ret = sysfs_create_files(kobj, hwmon_cputemp[i]);
+static SENSOR_DEVICE_ATTR(temp1_input, 0444, get_cpu_temp, NULL, 1);
+static SENSOR_DEVICE_ATTR(temp1_label, 0444, cpu_temp_label, NULL, 1);
+static SENSOR_DEVICE_ATTR(temp2_input, 0444, get_cpu_temp, NULL, 2);
+static SENSOR_DEVICE_ATTR(temp2_label, 0444, cpu_temp_label, NULL, 2);
+static SENSOR_DEVICE_ATTR(temp3_input, 0444, get_cpu_temp, NULL, 3);
+static SENSOR_DEVICE_ATTR(temp3_label, 0444, cpu_temp_label, NULL, 3);
+static SENSOR_DEVICE_ATTR(temp4_input, 0444, get_cpu_temp, NULL, 4);
+static SENSOR_DEVICE_ATTR(temp4_label, 0444, cpu_temp_label, NULL, 4);
 
-	return ret;
-}
+static struct attribute *cpu_hwmon_attributes[] = {
+	&sensor_dev_attr_temp1_input.dev_attr.attr,
+	&sensor_dev_attr_temp1_label.dev_attr.attr,
+	&sensor_dev_attr_temp2_input.dev_attr.attr,
+	&sensor_dev_attr_temp2_label.dev_attr.attr,
+	&sensor_dev_attr_temp3_input.dev_attr.attr,
+	&sensor_dev_attr_temp3_label.dev_attr.attr,
+	&sensor_dev_attr_temp4_input.dev_attr.attr,
+	&sensor_dev_attr_temp4_label.dev_attr.attr,
+	NULL
+};
 
-static void remove_sysfs_cputemp_files(struct kobject *kobj)
+static umode_t cpu_hwmon_is_visible(struct kobject *kobj,
+				    struct attribute *attr, int i)
 {
-	int i;
+	int id = i / 2;
 
-	for (i = 0; i < nr_packages; i++)
-		sysfs_remove_files(kobj, hwmon_cputemp[i]);
+	if (id < nr_packages)
+		return attr->mode;
+	return 0;
 }
 
+static struct attribute_group cpu_hwmon_group = {
+	.attrs = cpu_hwmon_attributes,
+	.is_visible = cpu_hwmon_is_visible,
+};
+
+static const struct attribute_group *cpu_hwmon_groups[] = {
+	&cpu_hwmon_group,
+	NULL
+};
+
 #define CPU_THERMAL_THRESHOLD 90000
 static struct delayed_work thermal_work;
 
@@ -159,50 +133,31 @@ static void do_thermal_timer(struct work_struct *work)
 
 static int __init loongson_hwmon_init(void)
 {
-	int ret;
-
 	pr_info("Loongson Hwmon Enter...\n");
 
 	if (cpu_has_csr())
 		csr_temp_enable = csr_readl(LOONGSON_CSR_FEATURES) &
 				  LOONGSON_CSRF_TEMP;
 
-	cpu_hwmon_dev = hwmon_device_register_with_info(NULL, "cpu_hwmon", NULL, NULL, NULL);
-	if (IS_ERR(cpu_hwmon_dev)) {
-		ret = PTR_ERR(cpu_hwmon_dev);
-		pr_err("hwmon_device_register fail!\n");
-		goto fail_hwmon_device_register;
-	}
-
 	nr_packages = loongson_sysconf.nr_cpus /
 		loongson_sysconf.cores_per_package;
 
-	ret = create_sysfs_cputemp_files(&cpu_hwmon_dev->kobj);
-	if (ret) {
-		pr_err("fail to create cpu temperature interface!\n");
-		goto fail_create_sysfs_cputemp_files;
+	cpu_hwmon_dev = hwmon_device_register_with_groups(NULL, "cpu_hwmon",
+							  NULL, cpu_hwmon_groups);
+	if (IS_ERR(cpu_hwmon_dev)) {
+		pr_err("hwmon_device_register fail!\n");
+		return PTR_ERR(cpu_hwmon_dev);
 	}
 
 	INIT_DEFERRABLE_WORK(&thermal_work, do_thermal_timer);
 	schedule_delayed_work(&thermal_work, msecs_to_jiffies(20000));
 
-	return ret;
-
-fail_create_sysfs_cputemp_files:
-	sysfs_remove_group(&cpu_hwmon_dev->kobj,
-				&cpu_hwmon_attribute_group);
-	hwmon_device_unregister(cpu_hwmon_dev);
-
-fail_hwmon_device_register:
-	return ret;
+	return 0;
 }
 
 static void __exit loongson_hwmon_exit(void)
 {
 	cancel_delayed_work_sync(&thermal_work);
-	remove_sysfs_cputemp_files(&cpu_hwmon_dev->kobj);
-	sysfs_remove_group(&cpu_hwmon_dev->kobj,
-				&cpu_hwmon_attribute_group);
 	hwmon_device_unregister(cpu_hwmon_dev);
 }
 

tools/testing/selftests/ftrace/test.d/kprobe/multiple_kprobes.tc

@@ -25,6 +25,8 @@ if [ $L -ne 256 ]; then
   exit_fail
 fi
 
+cat kprobe_events >> $testlog
+
 echo 1 > events/kprobes/enable
 echo 0 > events/kprobes/enable
 echo > kprobe_events