diff --git a/Documentation/devicetree/bindings/serial/8250.txt 
b/Documentation/devicetree/bindings/serial/8250.txt
index dad3b2ec66d4..aeb6db4e35c3 100644
--- a/Documentation/devicetree/bindings/serial/8250.txt
+++ b/Documentation/devicetree/bindings/serial/8250.txt
@@ -24,6 +24,7 @@ Required properties:
        - "ti,da830-uart"
        - "aspeed,ast2400-vuart"
        - "aspeed,ast2500-vuart"
+       - "nuvoton,npcm750-uart"
        - "serial" if the port type is unknown.
 - reg : offset and length of the register set for the device.
 - interrupts : should contain uart interrupt.
diff --git a/Makefile b/Makefile
index c4c681b53ff0..00dd6af8eab4 100644
--- a/Makefile
+++ b/Makefile
@@ -1,7 +1,7 @@
 # SPDX-License-Identifier: GPL-2.0
 VERSION = 4
 PATCHLEVEL = 14
-SUBLEVEL = 32
+SUBLEVEL = 33
 EXTRAVERSION =
 NAME = Petit Gorille
 
diff --git a/arch/arm/boot/dts/am335x-pepper.dts 
b/arch/arm/boot/dts/am335x-pepper.dts
index 9fb7426070ce..03c7d77023c6 100644
--- a/arch/arm/boot/dts/am335x-pepper.dts
+++ b/arch/arm/boot/dts/am335x-pepper.dts
@@ -139,7 +139,7 @@
 &audio_codec {
        status = "okay";
 
-       reset-gpios = <&gpio1 16 GPIO_ACTIVE_LOW>;
+       gpio-reset = <&gpio1 16 GPIO_ACTIVE_LOW>;
        AVDD-supply = <&ldo3_reg>;
        IOVDD-supply = <&ldo3_reg>;
        DRVDD-supply = <&ldo3_reg>;
diff --git a/arch/arm/boot/dts/dra76-evm.dts b/arch/arm/boot/dts/dra76-evm.dts
index b024a65c6e27..f64aab450315 100644
--- a/arch/arm/boot/dts/dra76-evm.dts
+++ b/arch/arm/boot/dts/dra76-evm.dts
@@ -148,6 +148,7 @@
                compatible = "ti,tps65917";
                reg = <0x58>;
                ti,system-power-controller;
+               ti,palmas-override-powerhold;
                interrupt-controller;
                #interrupt-cells = <2>;
 
diff --git a/arch/arm/boot/dts/omap3-n900.dts b/arch/arm/boot/dts/omap3-n900.dts
index c66ee8432a85..4acd32a1c4ef 100644
--- a/arch/arm/boot/dts/omap3-n900.dts
+++ b/arch/arm/boot/dts/omap3-n900.dts
@@ -558,7 +558,7 @@
        tlv320aic3x: tlv320aic3x@18 {
                compatible = "ti,tlv320aic3x";
                reg = <0x18>;
-               reset-gpios = <&gpio2 28 GPIO_ACTIVE_LOW>; /* 60 */
+               gpio-reset = <&gpio2 28 GPIO_ACTIVE_HIGH>; /* 60 */
                ai3x-gpio-func = <
                        0 /* AIC3X_GPIO1_FUNC_DISABLED */
                        5 /* AIC3X_GPIO2_FUNC_DIGITAL_MIC_INPUT */
@@ -575,7 +575,7 @@
        tlv320aic3x_aux: tlv320aic3x@19 {
                compatible = "ti,tlv320aic3x";
                reg = <0x19>;
-               reset-gpios = <&gpio2 28 GPIO_ACTIVE_LOW>; /* 60 */
+               gpio-reset = <&gpio2 28 GPIO_ACTIVE_HIGH>; /* 60 */
 
                AVDD-supply = <&vmmc2>;
                DRVDD-supply = <&vmmc2>;
diff --git a/arch/arm/boot/dts/sun6i-a31s-sinovoip-bpi-m2.dts 
b/arch/arm/boot/dts/sun6i-a31s-sinovoip-bpi-m2.dts
index 51e6f1d21c32..b2758dd8ce43 100644
--- a/arch/arm/boot/dts/sun6i-a31s-sinovoip-bpi-m2.dts
+++ b/arch/arm/boot/dts/sun6i-a31s-sinovoip-bpi-m2.dts
@@ -42,7 +42,6 @@
 
 /dts-v1/;
 #include "sun6i-a31s.dtsi"
-#include "sunxi-common-regulators.dtsi"
 #include <dt-bindings/gpio/gpio.h>
 
 / {
@@ -99,6 +98,7 @@
        pinctrl-0 = <&gmac_pins_rgmii_a>, <&gmac_phy_reset_pin_bpi_m2>;
        phy = <&phy1>;
        phy-mode = "rgmii";
+       phy-supply = <&reg_dldo1>;
        snps,reset-gpio = <&pio 0 21 GPIO_ACTIVE_HIGH>; /* PA21 */
        snps,reset-active-low;
        snps,reset-delays-us = <0 10000 30000>;
@@ -118,7 +118,7 @@
 &mmc0 {
        pinctrl-names = "default";
        pinctrl-0 = <&mmc0_pins_a>, <&mmc0_cd_pin_bpi_m2>;
-       vmmc-supply = <&reg_vcc3v0>;
+       vmmc-supply = <&reg_dcdc1>;
        bus-width = <4>;
        cd-gpios = <&pio 0 4 GPIO_ACTIVE_HIGH>; /* PA4 */
        cd-inverted;
@@ -132,7 +132,7 @@
 &mmc2 {
        pinctrl-names = "default";
        pinctrl-0 = <&mmc2_pins_a>;
-       vmmc-supply = <&reg_vcc3v0>;
+       vmmc-supply = <&reg_aldo1>;
        mmc-pwrseq = <&mmc2_pwrseq>;
        bus-width = <4>;
        non-removable;
@@ -163,6 +163,8 @@
                reg = <0x68>;
                interrupt-parent = <&nmi_intc>;
                interrupts = <0 IRQ_TYPE_LEVEL_LOW>;
+               eldoin-supply = <&reg_dcdc1>;
+               x-powers,drive-vbus-en;
        };
 };
 
@@ -193,7 +195,28 @@
 
 #include "axp22x.dtsi"
 
+&reg_aldo1 {
+       regulator-min-microvolt = <3300000>;
+       regulator-max-microvolt = <3300000>;
+       regulator-name = "vcc-wifi";
+};
+
+&reg_aldo2 {
+       regulator-always-on;
+       regulator-min-microvolt = <2500000>;
+       regulator-max-microvolt = <2500000>;
+       regulator-name = "vcc-gmac";
+};
+
+&reg_aldo3 {
+       regulator-always-on;
+       regulator-min-microvolt = <3000000>;
+       regulator-max-microvolt = <3000000>;
+       regulator-name = "avcc";
+};
+
 &reg_dc5ldo {
+       regulator-always-on;
        regulator-min-microvolt = <700000>;
        regulator-max-microvolt = <1320000>;
        regulator-name = "vdd-cpus";
@@ -233,6 +256,40 @@
        regulator-name = "vcc-dram";
 };
 
+&reg_dldo1 {
+       regulator-min-microvolt = <3000000>;
+       regulator-max-microvolt = <3000000>;
+       regulator-name = "vcc-mac";
+};
+
+&reg_dldo2 {
+       regulator-min-microvolt = <2800000>;
+       regulator-max-microvolt = <2800000>;
+       regulator-name = "avdd-csi";
+};
+
+&reg_dldo3 {
+       regulator-always-on;
+       regulator-min-microvolt = <3300000>;
+       regulator-max-microvolt = <3300000>;
+       regulator-name = "vcc-pb";
+};
+
+&reg_eldo1 {
+       regulator-min-microvolt = <1800000>;
+       regulator-max-microvolt = <1800000>;
+       regulator-name = "vdd-csi";
+       status = "okay";
+};
+
+&reg_ldo_io1 {
+       regulator-always-on;
+       regulator-min-microvolt = <1800000>;
+       regulator-max-microvolt = <1800000>;
+       regulator-name = "vcc-pm-cpus";
+       status = "okay";
+};
+
 &uart0 {
        pinctrl-names = "default";
        pinctrl-0 = <&uart0_pins_a>;
diff --git a/arch/arm/crypto/Makefile b/arch/arm/crypto/Makefile
index 30ef8e291271..c9919c2b7ad1 100644
--- a/arch/arm/crypto/Makefile
+++ b/arch/arm/crypto/Makefile
@@ -54,6 +54,7 @@ crct10dif-arm-ce-y    := crct10dif-ce-core.o 
crct10dif-ce-glue.o
 crc32-arm-ce-y:= crc32-ce-core.o crc32-ce-glue.o
 chacha20-neon-y := chacha20-neon-core.o chacha20-neon-glue.o
 
+ifdef REGENERATE_ARM_CRYPTO
 quiet_cmd_perl = PERL    $@
       cmd_perl = $(PERL) $(<) > $(@)
 
@@ -62,5 +63,6 @@ $(src)/sha256-core.S_shipped: $(src)/sha256-armv4.pl
 
 $(src)/sha512-core.S_shipped: $(src)/sha512-armv4.pl
        $(call cmd,perl)
+endif
 
 .PRECIOUS: $(obj)/sha256-core.S $(obj)/sha512-core.S
diff --git a/arch/arm/plat-omap/include/plat/sram.h 
b/arch/arm/plat-omap/include/plat/sram.h
index fb061cf0d736..30a07730807a 100644
--- a/arch/arm/plat-omap/include/plat/sram.h
+++ b/arch/arm/plat-omap/include/plat/sram.h
@@ -5,13 +5,4 @@ void omap_map_sram(unsigned long start, unsigned long size,
                        unsigned long skip, int cached);
 void omap_sram_reset(void);
 
-extern void *omap_sram_push_address(unsigned long size);
-
-/* Macro to push a function to the internal SRAM, using the fncpy API */
-#define omap_sram_push(funcp, size) ({                         \
-       typeof(&(funcp)) _res = NULL;                           \
-       void *_sram_address = omap_sram_push_address(size);     \
-       if (_sram_address)                                      \
-               _res = fncpy(_sram_address, &(funcp), size);    \
-       _res;                                                   \
-})
+extern void *omap_sram_push(void *funcp, unsigned long size);
diff --git a/arch/arm/plat-omap/sram.c b/arch/arm/plat-omap/sram.c
index a5bc92d7e476..921840acf65c 100644
--- a/arch/arm/plat-omap/sram.c
+++ b/arch/arm/plat-omap/sram.c
@@ -23,6 +23,7 @@
 #include <asm/fncpy.h>
 #include <asm/tlb.h>
 #include <asm/cacheflush.h>
+#include <asm/set_memory.h>
 
 #include <asm/mach/map.h>
 
@@ -42,7 +43,7 @@ static void __iomem *omap_sram_ceil;
  * Note that fncpy requires the returned address to be aligned
  * to an 8-byte boundary.
  */
-void *omap_sram_push_address(unsigned long size)
+static void *omap_sram_push_address(unsigned long size)
 {
        unsigned long available, new_ceil = (unsigned long)omap_sram_ceil;
 
@@ -60,6 +61,30 @@ void *omap_sram_push_address(unsigned long size)
        return (void *)omap_sram_ceil;
 }
 
+void *omap_sram_push(void *funcp, unsigned long size)
+{
+       void *sram;
+       unsigned long base;
+       int pages;
+       void *dst = NULL;
+
+       sram = omap_sram_push_address(size);
+       if (!sram)
+               return NULL;
+
+       base = (unsigned long)sram & PAGE_MASK;
+       pages = PAGE_ALIGN(size) / PAGE_SIZE;
+
+       set_memory_rw(base, pages);
+
+       dst = fncpy(sram, funcp, size);
+
+       set_memory_ro(base, pages);
+       set_memory_x(base, pages);
+
+       return dst;
+}
+
 /*
  * The SRAM context is lost during off-idle and stack
  * needs to be reset.
@@ -75,6 +100,9 @@ void omap_sram_reset(void)
 void __init omap_map_sram(unsigned long start, unsigned long size,
                                 unsigned long skip, int cached)
 {
+       unsigned long base;
+       int pages;
+
        if (size == 0)
                return;
 
@@ -95,4 +123,10 @@ void __init omap_map_sram(unsigned long start, unsigned 
long size,
         */
        memset_io(omap_sram_base + omap_sram_skip, 0,
                  omap_sram_size - omap_sram_skip);
+
+       base = (unsigned long)omap_sram_base;
+       pages = PAGE_ALIGN(omap_sram_size) / PAGE_SIZE;
+
+       set_memory_ro(base, pages);
+       set_memory_x(base, pages);
 }
diff --git a/arch/arm/vfp/vfpmodule.c b/arch/arm/vfp/vfpmodule.c
index a71a48e71fff..aa7496be311d 100644
--- a/arch/arm/vfp/vfpmodule.c
+++ b/arch/arm/vfp/vfpmodule.c
@@ -648,7 +648,7 @@ int vfp_restore_user_hwstate(struct user_vfp __user *ufp,
  */
 static int vfp_dying_cpu(unsigned int cpu)
 {
-       vfp_force_reload(cpu, current_thread_info());
+       vfp_current_hw_state[cpu] = NULL;
        return 0;
 }
 
diff --git a/arch/arm64/crypto/Makefile b/arch/arm64/crypto/Makefile
index b5edc5918c28..12fd81af1d1c 100644
--- a/arch/arm64/crypto/Makefile
+++ b/arch/arm64/crypto/Makefile
@@ -58,6 +58,7 @@ CFLAGS_aes-glue-ce.o  := -DUSE_V8_CRYPTO_EXTENSIONS
 $(obj)/aes-glue-%.o: $(src)/aes-glue.c FORCE
        $(call if_changed_rule,cc_o_c)
 
+ifdef REGENERATE_ARM64_CRYPTO
 quiet_cmd_perlasm = PERLASM $@
       cmd_perlasm = $(PERL) $(<) void $(@)
 
@@ -66,5 +67,6 @@ $(src)/sha256-core.S_shipped: $(src)/sha512-armv8.pl
 
 $(src)/sha512-core.S_shipped: $(src)/sha512-armv8.pl
        $(call cmd,perlasm)
+endif
 
 .PRECIOUS: $(obj)/sha256-core.S $(obj)/sha512-core.S
diff --git a/arch/powerpc/kernel/exceptions-64s.S 
b/arch/powerpc/kernel/exceptions-64s.S
index e91b40aa5417..f9ca4bb3d48e 100644
--- a/arch/powerpc/kernel/exceptions-64s.S
+++ b/arch/powerpc/kernel/exceptions-64s.S
@@ -704,7 +704,7 @@ EXC_COMMON_BEGIN(bad_addr_slb)
        ld      r3, PACA_EXSLB+EX_DAR(r13)
        std     r3, _DAR(r1)
        beq     cr6, 2f
-       li      r10, 0x480              /* fix trap number for I-SLB miss */
+       li      r10, 0x481              /* fix trap number for I-SLB miss */
        std     r10, _TRAP(r1)
 2:     bl      save_nvgprs
        addi    r3, r1, STACK_FRAME_OVERHEAD
diff --git a/arch/powerpc/kernel/irq.c b/arch/powerpc/kernel/irq.c
index 4e65bf82f5e0..0ce8b0e5d7ba 100644
--- a/arch/powerpc/kernel/irq.c
+++ b/arch/powerpc/kernel/irq.c
@@ -430,6 +430,14 @@ void force_external_irq_replay(void)
         */
        WARN_ON(!arch_irqs_disabled());
 
+       /*
+        * Interrupts must always be hard disabled before irq_happened is
+        * modified (to prevent lost update in case of interrupt between
+        * load and store).
+        */
+       __hard_irq_disable();
+       local_paca->irq_happened |= PACA_IRQ_HARD_DIS;
+
        /* Indicate in the PACA that we have an interrupt to replay */
        local_paca->irq_happened |= PACA_IRQ_EE;
 }
diff --git a/arch/x86/crypto/cast5_avx_glue.c b/arch/x86/crypto/cast5_avx_glue.c
index dbea6020ffe7..575292a33bdf 100644
--- a/arch/x86/crypto/cast5_avx_glue.c
+++ b/arch/x86/crypto/cast5_avx_glue.c
@@ -66,8 +66,6 @@ static int ecb_crypt(struct blkcipher_desc *desc, struct 
blkcipher_walk *walk,
        void (*fn)(struct cast5_ctx *ctx, u8 *dst, const u8 *src);
        int err;
 
-       fn = (enc) ? cast5_ecb_enc_16way : cast5_ecb_dec_16way;
-
        err = blkcipher_walk_virt(desc, walk);
        desc->flags &= ~CRYPTO_TFM_REQ_MAY_SLEEP;
 
@@ -79,6 +77,7 @@ static int ecb_crypt(struct blkcipher_desc *desc, struct 
blkcipher_walk *walk,
 
                /* Process multi-block batch */
                if (nbytes >= bsize * CAST5_PARALLEL_BLOCKS) {
+                       fn = (enc) ? cast5_ecb_enc_16way : cast5_ecb_dec_16way;
                        do {
                                fn(ctx, wdst, wsrc);
 
diff --git a/arch/x86/include/asm/hw_irq.h b/arch/x86/include/asm/hw_irq.h
index 8ec99a55e6b9..bf253ad93bbc 100644
--- a/arch/x86/include/asm/hw_irq.h
+++ b/arch/x86/include/asm/hw_irq.h
@@ -34,6 +34,7 @@ extern asmlinkage void kvm_posted_intr_wakeup_ipi(void);
 extern asmlinkage void kvm_posted_intr_nested_ipi(void);
 extern asmlinkage void error_interrupt(void);
 extern asmlinkage void irq_work_interrupt(void);
+extern asmlinkage void uv_bau_message_intr1(void);
 
 extern asmlinkage void spurious_interrupt(void);
 extern asmlinkage void thermal_interrupt(void);
diff --git a/arch/x86/kernel/idt.c b/arch/x86/kernel/idt.c
index a59624080015..0c5256653d6c 100644
--- a/arch/x86/kernel/idt.c
+++ b/arch/x86/kernel/idt.c
@@ -140,6 +140,9 @@ static const __initconst struct idt_data apic_idts[] = {
 # ifdef CONFIG_IRQ_WORK
        INTG(IRQ_WORK_VECTOR,           irq_work_interrupt),
 # endif
+#ifdef CONFIG_X86_UV
+       INTG(UV_BAU_MESSAGE,            uv_bau_message_intr1),
+#endif
        INTG(SPURIOUS_APIC_VECTOR,      spurious_interrupt),
        INTG(ERROR_APIC_VECTOR,         error_interrupt),
 #endif
diff --git a/arch/x86/platform/uv/tlb_uv.c b/arch/x86/platform/uv/tlb_uv.c
index 7d5d53f36a7a..0b530c53de1f 100644
--- a/arch/x86/platform/uv/tlb_uv.c
+++ b/arch/x86/platform/uv/tlb_uv.c
@@ -2254,8 +2254,6 @@ static int __init uv_bau_init(void)
                        init_uvhub(uvhub, vector, uv_base_pnode);
        }
 
-       alloc_intr_gate(vector, uv_bau_message_intr1);
-
        for_each_possible_blade(uvhub) {
                if (uv_blade_nr_possible_cpus(uvhub)) {
                        unsigned long val;
diff --git a/block/bio.c b/block/bio.c
index 7f978eac9a7a..dbaa82c967f4 100644
--- a/block/bio.c
+++ b/block/bio.c
@@ -43,9 +43,9 @@
  * break badly! cannot be bigger than what you can fit into an
  * unsigned short
  */
-#define BV(x) { .nr_vecs = x, .name = "biovec-"__stringify(x) }
+#define BV(x, n) { .nr_vecs = x, .name = "biovec-"#n }
 static struct biovec_slab bvec_slabs[BVEC_POOL_NR] __read_mostly = {
-       BV(1), BV(4), BV(16), BV(64), BV(128), BV(BIO_MAX_PAGES),
+       BV(1, 1), BV(4, 4), BV(16, 16), BV(64, 64), BV(128, 128), 
BV(BIO_MAX_PAGES, max),
 };
 #undef BV
 
diff --git a/block/partitions/msdos.c b/block/partitions/msdos.c
index 0af3a3db6fb0..82c44f7df911 100644
--- a/block/partitions/msdos.c
+++ b/block/partitions/msdos.c
@@ -301,7 +301,9 @@ static void parse_bsd(struct parsed_partitions *state,
                        continue;
                bsd_start = le32_to_cpu(p->p_offset);
                bsd_size = le32_to_cpu(p->p_size);
-               if (memcmp(flavour, "bsd\0", 4) == 0)
+               /* FreeBSD has relative offset if C partition offset is zero */
+               if (memcmp(flavour, "bsd\0", 4) == 0 &&
+                   le32_to_cpu(l->d_partitions[2].p_offset) == 0)
                        bsd_start += offset;
                if (offset == bsd_start && size == bsd_size)
                        /* full parent partition, we have it already */
diff --git a/crypto/ahash.c b/crypto/ahash.c
index f75b5c1f7152..3980e9e45289 100644
--- a/crypto/ahash.c
+++ b/crypto/ahash.c
@@ -92,13 +92,14 @@ int crypto_hash_walk_done(struct crypto_hash_walk *walk, 
int err)
 
        if (nbytes && walk->offset & alignmask && !err) {
                walk->offset = ALIGN(walk->offset, alignmask + 1);
-               walk->data += walk->offset;
-
                nbytes = min(nbytes,
                             ((unsigned int)(PAGE_SIZE)) - walk->offset);
                walk->entrylen -= nbytes;
 
-               return nbytes;
+               if (nbytes) {
+                       walk->data += walk->offset;
+                       return nbytes;
+               }
        }
 
        if (walk->flags & CRYPTO_ALG_ASYNC)
diff --git a/crypto/lrw.c b/crypto/lrw.c
index eb681e9fe574..fdba6dd6db63 100644
--- a/crypto/lrw.c
+++ b/crypto/lrw.c
@@ -313,7 +313,7 @@ static void exit_crypt(struct skcipher_request *req)
        rctx->left = 0;
 
        if (rctx->ext)
-               kfree(rctx->ext);
+               kzfree(rctx->ext);
 }
 
 static int do_encrypt(struct skcipher_request *req, int err)
diff --git a/crypto/testmgr.h b/crypto/testmgr.h
index d54971d2d1c8..fbc0fab5e79e 100644
--- a/crypto/testmgr.h
+++ b/crypto/testmgr.h
@@ -548,7 +548,7 @@ static const struct akcipher_testvec rsa_tv_template[] = {
 static const struct akcipher_testvec pkcs1pad_rsa_tv_template[] = {
        {
        .key =
-       "\x30\x82\x03\x1f\x02\x01\x10\x02\x82\x01\x01\x00\xd7\x1e\x77\x82"
+       "\x30\x82\x03\x1f\x02\x01\x00\x02\x82\x01\x01\x00\xd7\x1e\x77\x82"
        "\x8c\x92\x31\xe7\x69\x02\xa2\xd5\x5c\x78\xde\xa2\x0c\x8f\xfe\x28"
        "\x59\x31\xdf\x40\x9c\x60\x61\x06\xb9\x2f\x62\x40\x80\x76\xcb\x67"
        "\x4a\xb5\x59\x56\x69\x17\x07\xfa\xf9\x4c\xbd\x6c\x37\x7a\x46\x7d"
@@ -597,8 +597,8 @@ static const struct akcipher_testvec 
pkcs1pad_rsa_tv_template[] = {
        "\xfe\xf8\x27\x1b\xd6\x55\x60\x5e\x48\xb7\x6d\x9a\xa8\x37\xf9\x7a"
        "\xde\x1b\xcd\x5d\x1a\x30\xd4\xe9\x9e\x5b\x3c\x15\xf8\x9c\x1f\xda"
        "\xd1\x86\x48\x55\xce\x83\xee\x8e\x51\xc7\xde\x32\x12\x47\x7d\x46"
-       "\xb8\x35\xdf\x41\x02\x01\x30\x02\x01\x30\x02\x01\x30\x02\x01\x30"
-       "\x02\x01\x30",
+       "\xb8\x35\xdf\x41\x02\x01\x00\x02\x01\x00\x02\x01\x00\x02\x01\x00"
+       "\x02\x01\x00",
        .key_len = 804,
        /*
         * m is SHA256 hash of following message:
diff --git a/drivers/base/arch_topology.c b/drivers/base/arch_topology.c
index 6df7d6676a48..41be9ff7d70a 100644
--- a/drivers/base/arch_topology.c
+++ b/drivers/base/arch_topology.c
@@ -166,11 +166,11 @@ bool __init topology_parse_cpu_capacity(struct 
device_node *cpu_node, int cpu)
 }
 
 #ifdef CONFIG_CPU_FREQ
-static cpumask_var_t cpus_to_visit __initdata;
-static void __init parsing_done_workfn(struct work_struct *work);
-static __initdata DECLARE_WORK(parsing_done_work, parsing_done_workfn);
+static cpumask_var_t cpus_to_visit;
+static void parsing_done_workfn(struct work_struct *work);
+static DECLARE_WORK(parsing_done_work, parsing_done_workfn);
 
-static int __init
+static int
 init_cpu_capacity_callback(struct notifier_block *nb,
                           unsigned long val,
                           void *data)
@@ -206,7 +206,7 @@ init_cpu_capacity_callback(struct notifier_block *nb,
        return 0;
 }
 
-static struct notifier_block init_cpu_capacity_notifier __initdata = {
+static struct notifier_block init_cpu_capacity_notifier = {
        .notifier_call = init_cpu_capacity_callback,
 };
 
@@ -232,7 +232,7 @@ static int __init register_cpufreq_notifier(void)
 }
 core_initcall(register_cpufreq_notifier);
 
-static void __init parsing_done_workfn(struct work_struct *work)
+static void parsing_done_workfn(struct work_struct *work)
 {
        cpufreq_unregister_notifier(&init_cpu_capacity_notifier,
                                         CPUFREQ_POLICY_NOTIFIER);
diff --git a/drivers/char/mem.c b/drivers/char/mem.c
index 3a70dba2c645..f11224a5dc5c 100644
--- a/drivers/char/mem.c
+++ b/drivers/char/mem.c
@@ -137,7 +137,7 @@ static ssize_t read_mem(struct file *file, char __user *buf,
 
        while (count > 0) {
                unsigned long remaining;
-               int allowed;
+               int allowed, probe;
 
                sz = size_inside_page(p, count);
 
@@ -160,9 +160,9 @@ static ssize_t read_mem(struct file *file, char __user *buf,
                        if (!ptr)
                                goto failed;
 
-                       err = probe_kernel_read(bounce, ptr, sz);
+                       probe = probe_kernel_read(bounce, ptr, sz);
                        unxlate_dev_mem_ptr(p, ptr);
-                       if (err)
+                       if (probe)
                                goto failed;
 
                        remaining = copy_to_user(buf, bounce, sz);
diff --git a/drivers/cpufreq/cpufreq.c b/drivers/cpufreq/cpufreq.c
index bb1e148ebfd4..ea43b147a7fe 100644
--- a/drivers/cpufreq/cpufreq.c
+++ b/drivers/cpufreq/cpufreq.c
@@ -631,8 +631,6 @@ static int cpufreq_parse_governor(char *str_governor, 
unsigned int *policy,
                        *governor = t;
                        err = 0;
                }
-               if (t && !try_module_get(t->owner))
-                       t = NULL;
 
                mutex_unlock(&cpufreq_governor_mutex);
        }
@@ -761,10 +759,6 @@ static ssize_t store_scaling_governor(struct 
cpufreq_policy *policy,
                return -EINVAL;
 
        ret = cpufreq_set_policy(policy, &new_policy);
-
-       if (new_policy.governor)
-               module_put(new_policy.governor->owner);
-
        return ret ? ret : count;
 }
 
diff --git a/drivers/crypto/caam/ctrl.c b/drivers/crypto/caam/ctrl.c
index e1d4ae1153c4..39f70411f28f 100644
--- a/drivers/crypto/caam/ctrl.c
+++ b/drivers/crypto/caam/ctrl.c
@@ -813,9 +813,6 @@ static int caam_probe(struct platform_device *pdev)
        return 0;
 
 caam_remove:
-#ifdef CONFIG_DEBUG_FS
-       debugfs_remove_recursive(ctrlpriv->dfs_root);
-#endif
        caam_remove(pdev);
        return ret;
 
diff --git a/drivers/crypto/ccp/ccp-crypto-rsa.c 
b/drivers/crypto/ccp/ccp-crypto-rsa.c
index e6db8672d89c..05850dfd7940 100644
--- a/drivers/crypto/ccp/ccp-crypto-rsa.c
+++ b/drivers/crypto/ccp/ccp-crypto-rsa.c
@@ -60,10 +60,9 @@ static int ccp_rsa_complete(struct crypto_async_request 
*async_req, int ret)
 
 static unsigned int ccp_rsa_maxsize(struct crypto_akcipher *tfm)
 {
-       if (ccp_version() > CCP_VERSION(3, 0))
-               return CCP5_RSA_MAXMOD;
-       else
-               return CCP_RSA_MAXMOD;
+       struct ccp_ctx *ctx = akcipher_tfm_ctx(tfm);
+
+       return ctx->u.rsa.n_len;
 }
 
 static int ccp_rsa_crypt(struct akcipher_request *req, bool encrypt)
diff --git a/drivers/crypto/inside-secure/safexcel.c 
b/drivers/crypto/inside-secure/safexcel.c
index 4bcef78a08aa..d4c81cb73bee 100644
--- a/drivers/crypto/inside-secure/safexcel.c
+++ b/drivers/crypto/inside-secure/safexcel.c
@@ -789,7 +789,7 @@ static int safexcel_probe(struct platform_device *pdev)
                return PTR_ERR(priv->base);
        }
 
-       priv->clk = of_clk_get(dev->of_node, 0);
+       priv->clk = devm_clk_get(&pdev->dev, NULL);
        if (!IS_ERR(priv->clk)) {
                ret = clk_prepare_enable(priv->clk);
                if (ret) {
diff --git a/drivers/i2c/busses/i2c-stm32f7.c b/drivers/i2c/busses/i2c-stm32f7.c
index d4a6e9c2e9aa..124f9b1cf1b0 100644
--- a/drivers/i2c/busses/i2c-stm32f7.c
+++ b/drivers/i2c/busses/i2c-stm32f7.c
@@ -887,6 +887,11 @@ static int stm32f7_i2c_probe(struct platform_device *pdev)
        }
 
        setup = of_device_get_match_data(&pdev->dev);
+       if (!setup) {
+               dev_err(&pdev->dev, "Can't get device data\n");
+               ret = -ENODEV;
+               goto clk_free;
+       }
        i2c_dev->setup = *setup;
 
        ret = device_property_read_u32(i2c_dev->dev, "i2c-scl-rising-time-ns",
diff --git a/drivers/infiniband/core/addr.c b/drivers/infiniband/core/addr.c
index d2f74721b3ba..40475ebf3a61 100644
--- a/drivers/infiniband/core/addr.c
+++ b/drivers/infiniband/core/addr.c
@@ -207,6 +207,22 @@ int rdma_addr_size(struct sockaddr *addr)
 }
 EXPORT_SYMBOL(rdma_addr_size);
 
+int rdma_addr_size_in6(struct sockaddr_in6 *addr)
+{
+       int ret = rdma_addr_size((struct sockaddr *) addr);
+
+       return ret <= sizeof(*addr) ? ret : 0;
+}
+EXPORT_SYMBOL(rdma_addr_size_in6);
+
+int rdma_addr_size_kss(struct __kernel_sockaddr_storage *addr)
+{
+       int ret = rdma_addr_size((struct sockaddr *) addr);
+
+       return ret <= sizeof(*addr) ? ret : 0;
+}
+EXPORT_SYMBOL(rdma_addr_size_kss);
+
 static struct rdma_addr_client self;
 
 void rdma_addr_register_client(struct rdma_addr_client *client)
@@ -597,6 +613,15 @@ static void process_one_req(struct work_struct *_work)
        list_del(&req->list);
        mutex_unlock(&lock);
 
+       /*
+        * Although the work will normally have been canceled by the
+        * workqueue, it can still be requeued as long as it is on the
+        * req_list, so it could have been requeued before we grabbed &lock.
+        * We need to cancel it after it is removed from req_list to really be
+        * sure it is safe to free.
+        */
+       cancel_delayed_work(&req->work);
+
        req->callback(req->status, (struct sockaddr *)&req->src_addr,
                req->addr, req->context);
        put_client(req->client);
diff --git a/drivers/infiniband/core/ucma.c b/drivers/infiniband/core/ucma.c
index 77ca9da570a2..722235bed075 100644
--- a/drivers/infiniband/core/ucma.c
+++ b/drivers/infiniband/core/ucma.c
@@ -132,7 +132,7 @@ static inline struct ucma_context *_ucma_find_context(int 
id,
        ctx = idr_find(&ctx_idr, id);
        if (!ctx)
                ctx = ERR_PTR(-ENOENT);
-       else if (ctx->file != file)
+       else if (ctx->file != file || !ctx->cm_id)
                ctx = ERR_PTR(-EINVAL);
        return ctx;
 }
@@ -456,6 +456,7 @@ static ssize_t ucma_create_id(struct ucma_file *file, const 
char __user *inbuf,
        struct rdma_ucm_create_id cmd;
        struct rdma_ucm_create_id_resp resp;
        struct ucma_context *ctx;
+       struct rdma_cm_id *cm_id;
        enum ib_qp_type qp_type;
        int ret;
 
@@ -476,10 +477,10 @@ static ssize_t ucma_create_id(struct ucma_file *file, 
const char __user *inbuf,
                return -ENOMEM;
 
        ctx->uid = cmd.uid;
-       ctx->cm_id = rdma_create_id(current->nsproxy->net_ns,
-                                   ucma_event_handler, ctx, cmd.ps, qp_type);
-       if (IS_ERR(ctx->cm_id)) {
-               ret = PTR_ERR(ctx->cm_id);
+       cm_id = rdma_create_id(current->nsproxy->net_ns,
+                              ucma_event_handler, ctx, cmd.ps, qp_type);
+       if (IS_ERR(cm_id)) {
+               ret = PTR_ERR(cm_id);
                goto err1;
        }
 
@@ -489,14 +490,19 @@ static ssize_t ucma_create_id(struct ucma_file *file, 
const char __user *inbuf,
                ret = -EFAULT;
                goto err2;
        }
+
+       ctx->cm_id = cm_id;
        return 0;
 
 err2:
-       rdma_destroy_id(ctx->cm_id);
+       rdma_destroy_id(cm_id);
 err1:
        mutex_lock(&mut);
        idr_remove(&ctx_idr, ctx->id);
        mutex_unlock(&mut);
+       mutex_lock(&file->mut);
+       list_del(&ctx->list);
+       mutex_unlock(&file->mut);
        kfree(ctx);
        return ret;
 }
@@ -626,6 +632,9 @@ static ssize_t ucma_bind_ip(struct ucma_file *file, const 
char __user *inbuf,
        if (copy_from_user(&cmd, inbuf, sizeof(cmd)))
                return -EFAULT;
 
+       if (!rdma_addr_size_in6(&cmd.addr))
+               return -EINVAL;
+
        ctx = ucma_get_ctx(file, cmd.id);
        if (IS_ERR(ctx))
                return PTR_ERR(ctx);
@@ -639,22 +648,21 @@ static ssize_t ucma_bind(struct ucma_file *file, const 
char __user *inbuf,
                         int in_len, int out_len)
 {
        struct rdma_ucm_bind cmd;
-       struct sockaddr *addr;
        struct ucma_context *ctx;
        int ret;
 
        if (copy_from_user(&cmd, inbuf, sizeof(cmd)))
                return -EFAULT;
 
-       addr = (struct sockaddr *) &cmd.addr;
-       if (cmd.reserved || !cmd.addr_size || (cmd.addr_size != 
rdma_addr_size(addr)))
+       if (cmd.reserved || !cmd.addr_size ||
+           cmd.addr_size != rdma_addr_size_kss(&cmd.addr))
                return -EINVAL;
 
        ctx = ucma_get_ctx(file, cmd.id);
        if (IS_ERR(ctx))
                return PTR_ERR(ctx);
 
-       ret = rdma_bind_addr(ctx->cm_id, addr);
+       ret = rdma_bind_addr(ctx->cm_id, (struct sockaddr *) &cmd.addr);
        ucma_put_ctx(ctx);
        return ret;
 }
@@ -670,13 +678,16 @@ static ssize_t ucma_resolve_ip(struct ucma_file *file,
        if (copy_from_user(&cmd, inbuf, sizeof(cmd)))
                return -EFAULT;
 
+       if (!rdma_addr_size_in6(&cmd.src_addr) ||
+           !rdma_addr_size_in6(&cmd.dst_addr))
+               return -EINVAL;
+
        ctx = ucma_get_ctx(file, cmd.id);
        if (IS_ERR(ctx))
                return PTR_ERR(ctx);
 
        ret = rdma_resolve_addr(ctx->cm_id, (struct sockaddr *) &cmd.src_addr,
-                               (struct sockaddr *) &cmd.dst_addr,
-                               cmd.timeout_ms);
+                               (struct sockaddr *) &cmd.dst_addr, 
cmd.timeout_ms);
        ucma_put_ctx(ctx);
        return ret;
 }
@@ -686,24 +697,23 @@ static ssize_t ucma_resolve_addr(struct ucma_file *file,
                                 int in_len, int out_len)
 {
        struct rdma_ucm_resolve_addr cmd;
-       struct sockaddr *src, *dst;
        struct ucma_context *ctx;
        int ret;
 
        if (copy_from_user(&cmd, inbuf, sizeof(cmd)))
                return -EFAULT;
 
-       src = (struct sockaddr *) &cmd.src_addr;
-       dst = (struct sockaddr *) &cmd.dst_addr;
-       if (cmd.reserved || (cmd.src_size && (cmd.src_size != 
rdma_addr_size(src))) ||
-           !cmd.dst_size || (cmd.dst_size != rdma_addr_size(dst)))
+       if (cmd.reserved ||
+           (cmd.src_size && (cmd.src_size != 
rdma_addr_size_kss(&cmd.src_addr))) ||
+           !cmd.dst_size || (cmd.dst_size != 
rdma_addr_size_kss(&cmd.dst_addr)))
                return -EINVAL;
 
        ctx = ucma_get_ctx(file, cmd.id);
        if (IS_ERR(ctx))
                return PTR_ERR(ctx);
 
-       ret = rdma_resolve_addr(ctx->cm_id, src, dst, cmd.timeout_ms);
+       ret = rdma_resolve_addr(ctx->cm_id, (struct sockaddr *) &cmd.src_addr,
+                               (struct sockaddr *) &cmd.dst_addr, 
cmd.timeout_ms);
        ucma_put_ctx(ctx);
        return ret;
 }
@@ -1155,6 +1165,11 @@ static ssize_t ucma_init_qp_attr(struct ucma_file *file,
        if (IS_ERR(ctx))
                return PTR_ERR(ctx);
 
+       if (!ctx->cm_id->device) {
+               ret = -EINVAL;
+               goto out;
+       }
+
        resp.qp_attr_mask = 0;
        memset(&qp_attr, 0, sizeof qp_attr);
        qp_attr.qp_state = cmd.qp_state;
@@ -1320,7 +1335,7 @@ static ssize_t ucma_notify(struct ucma_file *file, const 
char __user *inbuf,
 {
        struct rdma_ucm_notify cmd;
        struct ucma_context *ctx;
-       int ret;
+       int ret = -EINVAL;
 
        if (copy_from_user(&cmd, inbuf, sizeof(cmd)))
                return -EFAULT;
@@ -1329,7 +1344,9 @@ static ssize_t ucma_notify(struct ucma_file *file, const 
char __user *inbuf,
        if (IS_ERR(ctx))
                return PTR_ERR(ctx);
 
-       ret = rdma_notify(ctx->cm_id, (enum ib_event_type) cmd.event);
+       if (ctx->cm_id->device)
+               ret = rdma_notify(ctx->cm_id, (enum ib_event_type)cmd.event);
+
        ucma_put_ctx(ctx);
        return ret;
 }
@@ -1415,7 +1432,7 @@ static ssize_t ucma_join_ip_multicast(struct ucma_file 
*file,
        join_cmd.response = cmd.response;
        join_cmd.uid = cmd.uid;
        join_cmd.id = cmd.id;
-       join_cmd.addr_size = rdma_addr_size((struct sockaddr *) &cmd.addr);
+       join_cmd.addr_size = rdma_addr_size_in6(&cmd.addr);
        if (!join_cmd.addr_size)
                return -EINVAL;
 
@@ -1434,7 +1451,7 @@ static ssize_t ucma_join_multicast(struct ucma_file *file,
        if (copy_from_user(&cmd, inbuf, sizeof(cmd)))
                return -EFAULT;
 
-       if (!rdma_addr_size((struct sockaddr *)&cmd.addr))
+       if (!rdma_addr_size_kss(&cmd.addr))
                return -EINVAL;
 
        return ucma_process_join(file, &cmd, out_len);
diff --git a/drivers/input/mouse/alps.c b/drivers/input/mouse/alps.c
index 3d9c294e84db..9a234da8cac2 100644
--- a/drivers/input/mouse/alps.c
+++ b/drivers/input/mouse/alps.c
@@ -2544,13 +2544,31 @@ static int alps_update_btn_info_ss4_v2(unsigned char 
otp[][4],
 }
 
 static int alps_update_dual_info_ss4_v2(unsigned char otp[][4],
-                                      struct alps_data *priv)
+                                       struct alps_data *priv,
+                                       struct psmouse *psmouse)
 {
        bool is_dual = false;
+       int reg_val = 0;
+       struct ps2dev *ps2dev = &psmouse->ps2dev;
 
-       if (IS_SS4PLUS_DEV(priv->dev_id))
+       if (IS_SS4PLUS_DEV(priv->dev_id)) {
                is_dual = (otp[0][0] >> 4) & 0x01;
 
+               if (!is_dual) {
+                       /* For support TrackStick of Thinkpad L/E series */
+                       if (alps_exit_command_mode(psmouse) == 0 &&
+                               alps_enter_command_mode(psmouse) == 0) {
+                               reg_val = alps_command_mode_read_reg(psmouse,
+                                                                       0xD7);
+                       }
+                       alps_exit_command_mode(psmouse);
+                       ps2_command(ps2dev, NULL, PSMOUSE_CMD_ENABLE);
+
+                       if (reg_val == 0x0C || reg_val == 0x1D)
+                               is_dual = true;
+               }
+       }
+
        if (is_dual)
                priv->flags |= ALPS_DUALPOINT |
                                        ALPS_DUALPOINT_WITH_PRESSURE;
@@ -2573,7 +2591,7 @@ static int alps_set_defaults_ss4_v2(struct psmouse 
*psmouse,
 
        alps_update_btn_info_ss4_v2(otp, priv);
 
-       alps_update_dual_info_ss4_v2(otp, priv);
+       alps_update_dual_info_ss4_v2(otp, priv, psmouse);
 
        return 0;
 }
diff --git a/drivers/input/serio/i8042-x86ia64io.h 
b/drivers/input/serio/i8042-x86ia64io.h
index 6cbbdc6e9687..b353d494ad40 100644
--- a/drivers/input/serio/i8042-x86ia64io.h
+++ b/drivers/input/serio/i8042-x86ia64io.h
@@ -530,6 +530,20 @@ static const struct dmi_system_id __initconst 
i8042_dmi_nomux_table[] = {
        { }
 };
 
+static const struct dmi_system_id i8042_dmi_forcemux_table[] __initconst = {
+       {
+               /*
+                * Sony Vaio VGN-CS series require MUX or the touch sensor
+                * buttons will disturb touchpad operation
+                */
+               .matches = {
+                       DMI_MATCH(DMI_SYS_VENDOR, "Sony Corporation"),
+                       DMI_MATCH(DMI_PRODUCT_NAME, "VGN-CS"),
+               },
+       },
+       { }
+};
+
 /*
  * On some Asus laptops, just running self tests cause problems.
  */
@@ -620,6 +634,13 @@ static const struct dmi_system_id __initconst 
i8042_dmi_reset_table[] = {
                        DMI_MATCH(DMI_PRODUCT_NAME, "20046"),
                },
        },
+       {
+               /* Lenovo ThinkPad L460 */
+               .matches = {
+                       DMI_MATCH(DMI_SYS_VENDOR, "LENOVO"),
+                       DMI_MATCH(DMI_PRODUCT_VERSION, "ThinkPad L460"),
+               },
+       },
        {
                /* Clevo P650RS, 650RP6, Sager NP8152-S, and others */
                .matches = {
@@ -1163,6 +1184,9 @@ static int __init i8042_platform_init(void)
        if (dmi_check_system(i8042_dmi_nomux_table))
                i8042_nomux = true;
 
+       if (dmi_check_system(i8042_dmi_forcemux_table))
+               i8042_nomux = false;
+
        if (dmi_check_system(i8042_dmi_notimeout_table))
                i8042_notimeout = true;
 
diff --git a/drivers/media/usb/usbtv/usbtv-core.c 
b/drivers/media/usb/usbtv/usbtv-core.c
index 71fb5734995b..68df16b3ce72 100644
--- a/drivers/media/usb/usbtv/usbtv-core.c
+++ b/drivers/media/usb/usbtv/usbtv-core.c
@@ -112,6 +112,8 @@ static int usbtv_probe(struct usb_interface *intf,
        return 0;
 
 usbtv_audio_fail:
+       /* we must not free at this point */
+       usb_get_dev(usbtv->udev);
        usbtv_video_free(usbtv);
 
 usbtv_video_fail:
diff --git a/drivers/misc/mei/main.c b/drivers/misc/mei/main.c
index e825f013e54e..22efc039f302 100644
--- a/drivers/misc/mei/main.c
+++ b/drivers/misc/mei/main.c
@@ -507,7 +507,6 @@ static long mei_ioctl(struct file *file, unsigned int cmd, 
unsigned long data)
                break;
 
        default:
-               dev_err(dev->dev, ": unsupported ioctl %d.\n", cmd);
                rets = -ENOIOCTLCMD;
        }
 
diff --git a/drivers/mtd/chips/jedec_probe.c b/drivers/mtd/chips/jedec_probe.c
index 7c0b27d132b1..b479bd81120b 100644
--- a/drivers/mtd/chips/jedec_probe.c
+++ b/drivers/mtd/chips/jedec_probe.c
@@ -1889,6 +1889,8 @@ static inline u32 jedec_read_mfr(struct map_info *map, 
uint32_t base,
        do {
                uint32_t ofs = cfi_build_cmd_addr(0 + (bank << 8), map, cfi);
                mask = (1 << (cfi->device_type * 8)) - 1;
+               if (ofs >= map->size)
+                       return 0;
                result = map_read(map, base + ofs);
                bank++;
        } while ((result.x[0] & mask) == CFI_MFR_CONTINUATION);
diff --git a/drivers/mtd/nand/atmel/pmecc.c b/drivers/mtd/nand/atmel/pmecc.c
index 8268636675ef..4124bf91bee6 100644
--- a/drivers/mtd/nand/atmel/pmecc.c
+++ b/drivers/mtd/nand/atmel/pmecc.c
@@ -426,7 +426,7 @@ static int get_strength(struct atmel_pmecc_user *user)
 
 static int get_sectorsize(struct atmel_pmecc_user *user)
 {
-       return user->cache.cfg & PMECC_LOOKUP_TABLE_SIZE_1024 ? 1024 : 512;
+       return user->cache.cfg & PMECC_CFG_SECTOR1024 ? 1024 : 512;
 }
 
 static void atmel_pmecc_gen_syndrome(struct atmel_pmecc_user *user, int sector)
diff --git a/drivers/net/ethernet/hisilicon/hns/hns_dsaf_gmac.c 
b/drivers/net/ethernet/hisilicon/hns/hns_dsaf_gmac.c
index 86944bc3b273..74bd260ca02a 100644
--- a/drivers/net/ethernet/hisilicon/hns/hns_dsaf_gmac.c
+++ b/drivers/net/ethernet/hisilicon/hns/hns_dsaf_gmac.c
@@ -666,7 +666,7 @@ static void hns_gmac_get_strings(u32 stringset, u8 *data)
 
 static int hns_gmac_get_sset_count(int stringset)
 {
-       if (stringset == ETH_SS_STATS || stringset == ETH_SS_PRIV_FLAGS)
+       if (stringset == ETH_SS_STATS)
                return ARRAY_SIZE(g_gmac_stats_string);
 
        return 0;
diff --git a/drivers/net/ethernet/hisilicon/hns/hns_dsaf_ppe.c 
b/drivers/net/ethernet/hisilicon/hns/hns_dsaf_ppe.c
index b62816c1574e..93e71e27401b 100644
--- a/drivers/net/ethernet/hisilicon/hns/hns_dsaf_ppe.c
+++ b/drivers/net/ethernet/hisilicon/hns/hns_dsaf_ppe.c
@@ -422,7 +422,7 @@ void hns_ppe_update_stats(struct hns_ppe_cb *ppe_cb)
 
 int hns_ppe_get_sset_count(int stringset)
 {
-       if (stringset == ETH_SS_STATS || stringset == ETH_SS_PRIV_FLAGS)
+       if (stringset == ETH_SS_STATS)
                return ETH_PPE_STATIC_NUM;
        return 0;
 }
diff --git a/drivers/net/ethernet/hisilicon/hns/hns_dsaf_rcb.c 
b/drivers/net/ethernet/hisilicon/hns/hns_dsaf_rcb.c
index 6f3570cfb501..e2e28532e4dc 100644
--- a/drivers/net/ethernet/hisilicon/hns/hns_dsaf_rcb.c
+++ b/drivers/net/ethernet/hisilicon/hns/hns_dsaf_rcb.c
@@ -876,7 +876,7 @@ void hns_rcb_get_stats(struct hnae_queue *queue, u64 *data)
  */
 int hns_rcb_get_ring_sset_count(int stringset)
 {
-       if (stringset == ETH_SS_STATS || stringset == ETH_SS_PRIV_FLAGS)
+       if (stringset == ETH_SS_STATS)
                return HNS_RING_STATIC_REG_NUM;
 
        return 0;
diff --git a/drivers/net/ethernet/hisilicon/hns/hns_ethtool.c 
b/drivers/net/ethernet/hisilicon/hns/hns_ethtool.c
index 7ea7f8a4aa2a..2e14a3ae1d8b 100644
--- a/drivers/net/ethernet/hisilicon/hns/hns_ethtool.c
+++ b/drivers/net/ethernet/hisilicon/hns/hns_ethtool.c
@@ -993,8 +993,10 @@ int hns_get_sset_count(struct net_device *netdev, int 
stringset)
                        cnt--;
 
                return cnt;
-       } else {
+       } else if (stringset == ETH_SS_STATS) {
                return (HNS_NET_STATS_CNT + ops->get_sset_count(h, stringset));
+       } else {
+               return -EOPNOTSUPP;
        }
 }
 
diff --git a/drivers/parport/parport_pc.c b/drivers/parport/parport_pc.c
index 489492b608cf..380916bff9e0 100644
--- a/drivers/parport/parport_pc.c
+++ b/drivers/parport/parport_pc.c
@@ -2646,6 +2646,7 @@ enum parport_pc_pci_cards {
        netmos_9901,
        netmos_9865,
        quatech_sppxp100,
+       wch_ch382l,
 };
 
 
@@ -2708,6 +2709,7 @@ static struct parport_pc_pci {
        /* netmos_9901 */               { 1, { { 0, -1 }, } },
        /* netmos_9865 */               { 1, { { 0, -1 }, } },
        /* quatech_sppxp100 */          { 1, { { 0, 1 }, } },
+       /* wch_ch382l */                { 1, { { 2, -1 }, } },
 };
 
 static const struct pci_device_id parport_pc_pci_tbl[] = {
@@ -2797,6 +2799,8 @@ static const struct pci_device_id parport_pc_pci_tbl[] = {
        /* Quatech SPPXP-100 Parallel port PCI ExpressCard */
        { PCI_VENDOR_ID_QUATECH, PCI_DEVICE_ID_QUATECH_SPPXP_100,
          PCI_ANY_ID, PCI_ANY_ID, 0, 0, quatech_sppxp100 },
+       /* WCH CH382L PCI-E single parallel port card */
+       { 0x1c00, 0x3050, 0x1c00, 0x3050, 0, 0, wch_ch382l },
        { 0, } /* terminate list */
 };
 MODULE_DEVICE_TABLE(pci, parport_pc_pci_tbl);
diff --git a/drivers/phy/qualcomm/phy-qcom-ufs.c 
b/drivers/phy/qualcomm/phy-qcom-ufs.c
index 43865ef340e2..3afba145f2e6 100644
--- a/drivers/phy/qualcomm/phy-qcom-ufs.c
+++ b/drivers/phy/qualcomm/phy-qcom-ufs.c
@@ -689,3 +689,8 @@ int ufs_qcom_phy_power_off(struct phy *generic_phy)
        return 0;
 }
 EXPORT_SYMBOL_GPL(ufs_qcom_phy_power_off);
+
+MODULE_AUTHOR("Yaniv Gardi <yga...@codeaurora.org>");
+MODULE_AUTHOR("Vivek Gautam <vivek.gau...@codeaurora.org>");
+MODULE_DESCRIPTION("Universal Flash Storage (UFS) QCOM PHY");
+MODULE_LICENSE("GPL v2");
diff --git a/drivers/staging/comedi/drivers/ni_mio_common.c 
b/drivers/staging/comedi/drivers/ni_mio_common.c
index 398347fedc47..2cac160993bb 100644
--- a/drivers/staging/comedi/drivers/ni_mio_common.c
+++ b/drivers/staging/comedi/drivers/ni_mio_common.c
@@ -1284,6 +1284,8 @@ static void ack_a_interrupt(struct comedi_device *dev, 
unsigned short a_status)
                ack |= NISTC_INTA_ACK_AI_START;
        if (a_status & NISTC_AI_STATUS1_STOP)
                ack |= NISTC_INTA_ACK_AI_STOP;
+       if (a_status & NISTC_AI_STATUS1_OVER)
+               ack |= NISTC_INTA_ACK_AI_ERR;
        if (ack)
                ni_stc_writew(dev, ack, NISTC_INTA_ACK_REG);
 }
diff --git a/drivers/tty/serial/8250/8250_of.c 
b/drivers/tty/serial/8250/8250_of.c
index 951680640ad5..3613a6aabfb3 100644
--- a/drivers/tty/serial/8250/8250_of.c
+++ b/drivers/tty/serial/8250/8250_of.c
@@ -321,6 +321,7 @@ static const struct of_device_id of_platform_serial_table[] 
= {
        { .compatible = "mrvl,mmp-uart",
                .data = (void *)PORT_XSCALE, },
        { .compatible = "ti,da830-uart", .data = (void *)PORT_DA830, },
+       { .compatible = "nuvoton,npcm750-uart", .data = (void *)PORT_NPCM, },
        { /* end of list */ },
 };
 MODULE_DEVICE_TABLE(of, of_platform_serial_table);
diff --git a/drivers/tty/serial/8250/8250_port.c 
b/drivers/tty/serial/8250/8250_port.c
index 8dcfd4978a03..fde34c84e707 100644
--- a/drivers/tty/serial/8250/8250_port.c
+++ b/drivers/tty/serial/8250/8250_port.c
@@ -51,6 +51,10 @@
 #define UART_EXAR_SLEEP                0x8b    /* Sleep mode */
 #define UART_EXAR_DVID         0x8d    /* Device identification */
 
+/* Nuvoton NPCM timeout register */
+#define UART_NPCM_TOR          7
+#define UART_NPCM_TOIE         BIT(7)  /* Timeout Interrupt Enable */
+
 /*
  * Debugging.
  */
@@ -297,6 +301,15 @@ static const struct serial8250_config uart_config[] = {
                                  UART_FCR_CLEAR_RCVR | UART_FCR_CLEAR_XMIT,
                .flags          = UART_CAP_FIFO,
        },
+       [PORT_NPCM] = {
+               .name           = "Nuvoton 16550",
+               .fifo_size      = 16,
+               .tx_loadsz      = 16,
+               .fcr            = UART_FCR_ENABLE_FIFO | UART_FCR_R_TRIG_10 |
+                                 UART_FCR_CLEAR_RCVR | UART_FCR_CLEAR_XMIT,
+               .rxtrig_bytes   = {1, 4, 8, 14},
+               .flags          = UART_CAP_FIFO,
+       },
 };
 
 /* Uart divisor latch read */
@@ -2168,6 +2181,15 @@ int serial8250_do_startup(struct uart_port *port)
                                UART_DA830_PWREMU_MGMT_FREE);
        }
 
+       if (port->type == PORT_NPCM) {
+               /*
+                * Nuvoton calls the scratch register 'UART_TOR' (timeout
+                * register). Enable it, and set TIOC (timeout interrupt
+                * comparator) to be 0x20 for correct operation.
+                */
+               serial_port_out(port, UART_NPCM_TOR, UART_NPCM_TOIE | 0x20);
+       }
+
 #ifdef CONFIG_SERIAL_8250_RSA
        /*
         * If this is an RSA port, see if we can kick it up to the
@@ -2490,6 +2512,15 @@ static unsigned int xr17v35x_get_divisor(struct 
uart_8250_port *up,
        return quot_16 >> 4;
 }
 
+/* Nuvoton NPCM UARTs have a custom divisor calculation */
+static unsigned int npcm_get_divisor(struct uart_8250_port *up,
+               unsigned int baud)
+{
+       struct uart_port *port = &up->port;
+
+       return DIV_ROUND_CLOSEST(port->uartclk, 16 * baud + 2) - 2;
+}
+
 static unsigned int serial8250_get_divisor(struct uart_8250_port *up,
                                           unsigned int baud,
                                           unsigned int *frac)
@@ -2510,6 +2541,8 @@ static unsigned int serial8250_get_divisor(struct 
uart_8250_port *up,
                quot = 0x8002;
        else if (up->port.type == PORT_XR17V35X)
                quot = xr17v35x_get_divisor(up, baud, frac);
+       else if (up->port.type == PORT_NPCM)
+               quot = npcm_get_divisor(up, baud);
        else
                quot = uart_get_divisor(port, baud);
 
diff --git a/drivers/tty/vt/vt.c b/drivers/tty/vt/vt.c
index 5a5813d01cf8..de67abbda921 100644
--- a/drivers/tty/vt/vt.c
+++ b/drivers/tty/vt/vt.c
@@ -1352,6 +1352,11 @@ static void csi_m(struct vc_data *vc)
                case 3:
                        vc->vc_italic = 1;
                        break;
+               case 21:
+                       /*
+                        * No console drivers support double underline, so
+                        * convert it to a single underline.
+                        */
                case 4:
                        vc->vc_underline = 1;
                        break;
@@ -1387,7 +1392,6 @@ static void csi_m(struct vc_data *vc)
                        vc->vc_disp_ctrl = 1;
                        vc->vc_toggle_meta = 1;
                        break;
-               case 21:
                case 22:
                        vc->vc_intensity = 1;
                        break;
diff --git a/drivers/usb/dwc2/hcd.c b/drivers/usb/dwc2/hcd.c
index c2631145f404..9bd60ec83ac6 100644
--- a/drivers/usb/dwc2/hcd.c
+++ b/drivers/usb/dwc2/hcd.c
@@ -3277,7 +3277,6 @@ static void dwc2_conn_id_status_change(struct work_struct 
*work)
                dwc2_core_init(hsotg, false);
                dwc2_enable_global_interrupts(hsotg);
                spin_lock_irqsave(&hsotg->lock, flags);
-               dwc2_hsotg_disconnect(hsotg);
                dwc2_hsotg_core_init_disconnected(hsotg, false);
                spin_unlock_irqrestore(&hsotg->lock, flags);
                dwc2_hsotg_core_connect(hsotg);
@@ -3296,8 +3295,12 @@ static void dwc2_conn_id_status_change(struct 
work_struct *work)
                if (count > 250)
                        dev_err(hsotg->dev,
                                "Connection id status change timed out\n");
-               hsotg->op_state = OTG_STATE_A_HOST;
 
+               spin_lock_irqsave(&hsotg->lock, flags);
+               dwc2_hsotg_disconnect(hsotg);
+               spin_unlock_irqrestore(&hsotg->lock, flags);
+
+               hsotg->op_state = OTG_STATE_A_HOST;
                /* Initialize the Core for Host mode */
                dwc2_core_init(hsotg, false);
                dwc2_enable_global_interrupts(hsotg);
diff --git a/drivers/usb/serial/cp210x.c b/drivers/usb/serial/cp210x.c
index aed182d24d23..2836acf73a07 100644
--- a/drivers/usb/serial/cp210x.c
+++ b/drivers/usb/serial/cp210x.c
@@ -158,6 +158,7 @@ static const struct usb_device_id id_table[] = {
        { USB_DEVICE(0x12B8, 0xEC62) }, /* Link G4+ ECU */
        { USB_DEVICE(0x13AD, 0x9999) }, /* Baltech card reader */
        { USB_DEVICE(0x1555, 0x0004) }, /* Owen AC4 USB-RS485 Converter */
+       { USB_DEVICE(0x155A, 0x1006) }, /* ELDAT Easywave RX09 */
        { USB_DEVICE(0x166A, 0x0201) }, /* Clipsal 5500PACA C-Bus Pascal 
Automation Controller */
        { USB_DEVICE(0x166A, 0x0301) }, /* Clipsal 5800PC C-Bus Wireless PC 
Interface */
        { USB_DEVICE(0x166A, 0x0303) }, /* Clipsal 5500PCU C-Bus USB interface 
*/
diff --git a/drivers/usb/serial/ftdi_sio.c b/drivers/usb/serial/ftdi_sio.c
index d038e543c246..a2a5232751cb 100644
--- a/drivers/usb/serial/ftdi_sio.c
+++ b/drivers/usb/serial/ftdi_sio.c
@@ -773,6 +773,7 @@ static const struct usb_device_id id_table_combined[] = {
                .driver_info = (kernel_ulong_t)&ftdi_NDI_device_quirk },
        { USB_DEVICE(TELLDUS_VID, TELLDUS_TELLSTICK_PID) },
        { USB_DEVICE(NOVITUS_VID, NOVITUS_BONO_E_PID) },
+       { USB_DEVICE(FTDI_VID, RTSYSTEMS_USB_VX8_PID) },
        { USB_DEVICE(RTSYSTEMS_VID, RTSYSTEMS_USB_S03_PID) },
        { USB_DEVICE(RTSYSTEMS_VID, RTSYSTEMS_USB_59_PID) },
        { USB_DEVICE(RTSYSTEMS_VID, RTSYSTEMS_USB_57A_PID) },
@@ -935,6 +936,7 @@ static const struct usb_device_id id_table_combined[] = {
        { USB_DEVICE(FTDI_VID, FTDI_SCIENCESCOPE_LS_LOGBOOK_PID) },
        { USB_DEVICE(FTDI_VID, FTDI_SCIENCESCOPE_HS_LOGBOOK_PID) },
        { USB_DEVICE(FTDI_VID, FTDI_CINTERION_MC55I_PID) },
+       { USB_DEVICE(FTDI_VID, FTDI_FHE_PID) },
        { USB_DEVICE(FTDI_VID, FTDI_DOTEC_PID) },
        { USB_DEVICE(QIHARDWARE_VID, MILKYMISTONE_JTAGSERIAL_PID),
                .driver_info = (kernel_ulong_t)&ftdi_jtag_quirk },
diff --git a/drivers/usb/serial/ftdi_sio_ids.h 
b/drivers/usb/serial/ftdi_sio_ids.h
index 8b4ecd2bd297..975d02666c5a 100644
--- a/drivers/usb/serial/ftdi_sio_ids.h
+++ b/drivers/usb/serial/ftdi_sio_ids.h
@@ -923,6 +923,9 @@
 /*
  * RT Systems programming cables for various ham radios
  */
+/* This device uses the VID of FTDI */
+#define RTSYSTEMS_USB_VX8_PID   0x9e50  /* USB-VX8 USB to 7 pin modular plug 
for Yaesu VX-8 radio */
+
 #define RTSYSTEMS_VID          0x2100  /* Vendor ID */
 #define RTSYSTEMS_USB_S03_PID  0x9001  /* RTS-03 USB to Serial Adapter */
 #define RTSYSTEMS_USB_59_PID   0x9e50  /* USB-59 USB to 8 pin plug */
@@ -1441,6 +1444,12 @@
  */
 #define FTDI_CINTERION_MC55I_PID       0xA951
 
+/*
+ * Product: FirmwareHubEmulator
+ * Manufacturer: Harman Becker Automotive Systems
+ */
+#define FTDI_FHE_PID           0xA9A0
+
 /*
  * Product: Comet Caller ID decoder
  * Manufacturer: Crucible Technologies
diff --git a/fs/btrfs/inode.c b/fs/btrfs/inode.c
index 59a01a0844c9..dfa360d18ae2 100644
--- a/fs/btrfs/inode.c
+++ b/fs/btrfs/inode.c
@@ -1257,6 +1257,8 @@ static noinline int csum_exist_in_range(struct 
btrfs_fs_info *fs_info,
                list_del(&sums->list);
                kfree(sums);
        }
+       if (ret < 0)
+               return ret;
        return 1;
 }
 
@@ -1389,10 +1391,23 @@ static noinline int run_delalloc_nocow(struct inode 
*inode,
                                goto out_check;
                        if (btrfs_extent_readonly(fs_info, disk_bytenr))
                                goto out_check;
-                       if (btrfs_cross_ref_exist(root, ino,
-                                                 found_key.offset -
-                                                 extent_offset, disk_bytenr))
+                       ret = btrfs_cross_ref_exist(root, ino,
+                                                   found_key.offset -
+                                                   extent_offset, disk_bytenr);
+                       if (ret) {
+                               /*
+                                * ret could be -EIO if the above fails to read
+                                * metadata.
+                                */
+                               if (ret < 0) {
+                                       if (cow_start != (u64)-1)
+                                               cur_offset = cow_start;
+                                       goto error;
+                               }
+
+                               WARN_ON_ONCE(nolock);
                                goto out_check;
+                       }
                        disk_bytenr += extent_offset;
                        disk_bytenr += cur_offset - found_key.offset;
                        num_bytes = min(end + 1, extent_end) - cur_offset;
@@ -1410,10 +1425,22 @@ static noinline int run_delalloc_nocow(struct inode 
*inode,
                         * this ensure that csum for a given extent are
                         * either valid or do not exist.
                         */
-                       if (csum_exist_in_range(fs_info, disk_bytenr,
-                                               num_bytes)) {
+                       ret = csum_exist_in_range(fs_info, disk_bytenr,
+                                                 num_bytes);
+                       if (ret) {
                                if (!nolock)
                                        btrfs_end_write_no_snapshotting(root);
+
+                               /*
+                                * ret could be -EIO if the above fails to read
+                                * metadata.
+                                */
+                               if (ret < 0) {
+                                       if (cow_start != (u64)-1)
+                                               cur_offset = cow_start;
+                                       goto error;
+                               }
+                               WARN_ON_ONCE(nolock);
                                goto out_check;
                        }
                        if (!btrfs_inc_nocow_writers(fs_info, disk_bytenr)) {
diff --git a/fs/ceph/file.c b/fs/ceph/file.c
index 5c17125f45c7..0024d3e61bcd 100644
--- a/fs/ceph/file.c
+++ b/fs/ceph/file.c
@@ -635,7 +635,8 @@ static ssize_t ceph_sync_read(struct kiocb *iocb, struct 
iov_iter *to,
 struct ceph_aio_request {
        struct kiocb *iocb;
        size_t total_len;
-       int write;
+       bool write;
+       bool should_dirty;
        int error;
        struct list_head osd_reqs;
        unsigned num_reqs;
@@ -745,7 +746,7 @@ static void ceph_aio_complete_req(struct ceph_osd_request 
*req)
                }
        }
 
-       ceph_put_page_vector(osd_data->pages, num_pages, !aio_req->write);
+       ceph_put_page_vector(osd_data->pages, num_pages, aio_req->should_dirty);
        ceph_osdc_put_request(req);
 
        if (rc < 0)
@@ -842,6 +843,7 @@ ceph_direct_read_write(struct kiocb *iocb, struct iov_iter 
*iter,
        size_t count = iov_iter_count(iter);
        loff_t pos = iocb->ki_pos;
        bool write = iov_iter_rw(iter) == WRITE;
+       bool should_dirty = !write && iter_is_iovec(iter);
 
        if (write && ceph_snap(file_inode(file)) != CEPH_NOSNAP)
                return -EROFS;
@@ -909,6 +911,7 @@ ceph_direct_read_write(struct kiocb *iocb, struct iov_iter 
*iter,
                        if (aio_req) {
                                aio_req->iocb = iocb;
                                aio_req->write = write;
+                               aio_req->should_dirty = should_dirty;
                                INIT_LIST_HEAD(&aio_req->osd_reqs);
                                if (write) {
                                        aio_req->mtime = mtime;
@@ -966,7 +969,7 @@ ceph_direct_read_write(struct kiocb *iocb, struct iov_iter 
*iter,
                                len = ret;
                }
 
-               ceph_put_page_vector(pages, num_pages, !write);
+               ceph_put_page_vector(pages, num_pages, should_dirty);
 
                ceph_osdc_put_request(req);
                if (ret < 0)
diff --git a/include/linux/bitmap.h b/include/linux/bitmap.h
index 19748a5b0e77..835c2271196a 100644
--- a/include/linux/bitmap.h
+++ b/include/linux/bitmap.h
@@ -262,12 +262,20 @@ static inline void bitmap_complement(unsigned long *dst, 
const unsigned long *sr
                __bitmap_complement(dst, src, nbits);
 }
 
+#ifdef __LITTLE_ENDIAN
+#define BITMAP_MEM_ALIGNMENT 8
+#else
+#define BITMAP_MEM_ALIGNMENT (8 * sizeof(unsigned long))
+#endif
+#define BITMAP_MEM_MASK (BITMAP_MEM_ALIGNMENT - 1)
+
 static inline int bitmap_equal(const unsigned long *src1,
                        const unsigned long *src2, unsigned int nbits)
 {
        if (small_const_nbits(nbits))
                return !((*src1 ^ *src2) & BITMAP_LAST_WORD_MASK(nbits));
-       if (__builtin_constant_p(nbits & 7) && IS_ALIGNED(nbits, 8))
+       if (__builtin_constant_p(nbits & BITMAP_MEM_MASK) &&
+           IS_ALIGNED(nbits, BITMAP_MEM_ALIGNMENT))
                return !memcmp(src1, src2, nbits / 8);
        return __bitmap_equal(src1, src2, nbits);
 }
@@ -318,8 +326,10 @@ static __always_inline void bitmap_set(unsigned long *map, 
unsigned int start,
 {
        if (__builtin_constant_p(nbits) && nbits == 1)
                __set_bit(start, map);
-       else if (__builtin_constant_p(start & 7) && IS_ALIGNED(start, 8) &&
-                __builtin_constant_p(nbits & 7) && IS_ALIGNED(nbits, 8))
+       else if (__builtin_constant_p(start & BITMAP_MEM_MASK) &&
+                IS_ALIGNED(start, BITMAP_MEM_ALIGNMENT) &&
+                __builtin_constant_p(nbits & BITMAP_MEM_MASK) &&
+                IS_ALIGNED(nbits, BITMAP_MEM_ALIGNMENT))
                memset((char *)map + start / 8, 0xff, nbits / 8);
        else
                __bitmap_set(map, start, nbits);
@@ -330,8 +340,10 @@ static __always_inline void bitmap_clear(unsigned long 
*map, unsigned int start,
 {
        if (__builtin_constant_p(nbits) && nbits == 1)
                __clear_bit(start, map);
-       else if (__builtin_constant_p(start & 7) && IS_ALIGNED(start, 8) &&
-                __builtin_constant_p(nbits & 7) && IS_ALIGNED(nbits, 8))
+       else if (__builtin_constant_p(start & BITMAP_MEM_MASK) &&
+                IS_ALIGNED(start, BITMAP_MEM_ALIGNMENT) &&
+                __builtin_constant_p(nbits & BITMAP_MEM_MASK) &&
+                IS_ALIGNED(nbits, BITMAP_MEM_ALIGNMENT))
                memset((char *)map + start / 8, 0, nbits / 8);
        else
                __bitmap_clear(map, start, nbits);
diff --git a/include/linux/netfilter/x_tables.h 
b/include/linux/netfilter/x_tables.h
index 33f7530f96b9..8e46c35d654b 100644
--- a/include/linux/netfilter/x_tables.h
+++ b/include/linux/netfilter/x_tables.h
@@ -285,6 +285,8 @@ unsigned int *xt_alloc_entry_offsets(unsigned int size);
 bool xt_find_jump_offset(const unsigned int *offsets,
                         unsigned int target, unsigned int size);
 
+int xt_check_proc_name(const char *name, unsigned int size);
+
 int xt_check_match(struct xt_mtchk_param *, unsigned int size, u_int8_t proto,
                   bool inv_proto);
 int xt_check_target(struct xt_tgchk_param *, unsigned int size, u_int8_t proto,
diff --git a/include/rdma/ib_addr.h b/include/rdma/ib_addr.h
index b2a10c762304..bec461bd6472 100644
--- a/include/rdma/ib_addr.h
+++ b/include/rdma/ib_addr.h
@@ -129,6 +129,8 @@ int rdma_copy_addr(struct rdma_dev_addr *dev_addr, struct 
net_device *dev,
              const unsigned char *dst_dev_addr);
 
 int rdma_addr_size(struct sockaddr *addr);
+int rdma_addr_size_in6(struct sockaddr_in6 *addr);
+int rdma_addr_size_kss(struct __kernel_sockaddr_storage *addr);
 
 int rdma_addr_find_smac_by_sgid(union ib_gid *sgid, u8 *smac, u16 *vlan_id);
 int rdma_addr_find_l2_eth_by_grh(const union ib_gid *sgid,
diff --git a/include/uapi/linux/serial_core.h b/include/uapi/linux/serial_core.h
index 1c8413f93e3d..dce5f9dae121 100644
--- a/include/uapi/linux/serial_core.h
+++ b/include/uapi/linux/serial_core.h
@@ -76,6 +76,9 @@
 #define PORT_SUNZILOG  38
 #define PORT_SUNSAB    39
 
+/* Nuvoton UART */
+#define PORT_NPCM      40
+
 /* Intel EG20 */
 #define PORT_PCH_8LINE 44
 #define PORT_PCH_2LINE 45
diff --git a/ipc/shm.c b/ipc/shm.c
index bd652755d32c..b469e910f887 100644
--- a/ipc/shm.c
+++ b/ipc/shm.c
@@ -386,6 +386,17 @@ static int shm_fault(struct vm_fault *vmf)
        return sfd->vm_ops->fault(vmf);
 }
 
+static int shm_split(struct vm_area_struct *vma, unsigned long addr)
+{
+       struct file *file = vma->vm_file;
+       struct shm_file_data *sfd = shm_file_data(file);
+
+       if (sfd->vm_ops && sfd->vm_ops->split)
+               return sfd->vm_ops->split(vma, addr);
+
+       return 0;
+}
+
 #ifdef CONFIG_NUMA
 static int shm_set_policy(struct vm_area_struct *vma, struct mempolicy *new)
 {
@@ -510,6 +521,7 @@ static const struct vm_operations_struct shm_vm_ops = {
        .open   = shm_open,     /* callback for a new vm-area open */
        .close  = shm_close,    /* callback for when the vm-area is released */
        .fault  = shm_fault,
+       .split  = shm_split,
 #if defined(CONFIG_NUMA)
        .set_policy = shm_set_policy,
        .get_policy = shm_get_policy,
diff --git a/kernel/events/hw_breakpoint.c b/kernel/events/hw_breakpoint.c
index 3f8cb1e14588..253ae2da13c3 100644
--- a/kernel/events/hw_breakpoint.c
+++ b/kernel/events/hw_breakpoint.c
@@ -427,16 +427,9 @@ EXPORT_SYMBOL_GPL(register_user_hw_breakpoint);
  * modify_user_hw_breakpoint - modify a user-space hardware breakpoint
  * @bp: the breakpoint structure to modify
  * @attr: new breakpoint attributes
- * @triggered: callback to trigger when we hit the breakpoint
- * @tsk: pointer to 'task_struct' of the process to which the address belongs
  */
 int modify_user_hw_breakpoint(struct perf_event *bp, struct perf_event_attr 
*attr)
 {
-       u64 old_addr = bp->attr.bp_addr;
-       u64 old_len = bp->attr.bp_len;
-       int old_type = bp->attr.bp_type;
-       int err = 0;
-
        /*
         * modify_user_hw_breakpoint can be invoked with IRQs disabled and 
hence it
         * will not be possible to raise IPIs that invoke __perf_event_disable.
@@ -451,27 +444,18 @@ int modify_user_hw_breakpoint(struct perf_event *bp, 
struct perf_event_attr *att
        bp->attr.bp_addr = attr->bp_addr;
        bp->attr.bp_type = attr->bp_type;
        bp->attr.bp_len = attr->bp_len;
+       bp->attr.disabled = 1;
 
-       if (attr->disabled)
-               goto end;
-
-       err = validate_hw_breakpoint(bp);
-       if (!err)
-               perf_event_enable(bp);
+       if (!attr->disabled) {
+               int err = validate_hw_breakpoint(bp);
 
-       if (err) {
-               bp->attr.bp_addr = old_addr;
-               bp->attr.bp_type = old_type;
-               bp->attr.bp_len = old_len;
-               if (!bp->attr.disabled)
-                       perf_event_enable(bp);
+               if (err)
+                       return err;
 
-               return err;
+               perf_event_enable(bp);
+               bp->attr.disabled = 0;
        }
 
-end:
-       bp->attr.disabled = attr->disabled;
-
        return 0;
 }
 EXPORT_SYMBOL_GPL(modify_user_hw_breakpoint);
diff --git a/mm/percpu-km.c b/mm/percpu-km.c
index d2a76642c4ae..0d88d7bd5706 100644
--- a/mm/percpu-km.c
+++ b/mm/percpu-km.c
@@ -34,7 +34,7 @@
 #include <linux/log2.h>
 
 static int pcpu_populate_chunk(struct pcpu_chunk *chunk,
-                              int page_start, int page_end)
+                              int page_start, int page_end, gfp_t gfp)
 {
        return 0;
 }
@@ -45,18 +45,18 @@ static void pcpu_depopulate_chunk(struct pcpu_chunk *chunk,
        /* nada */
 }
 
-static struct pcpu_chunk *pcpu_create_chunk(void)
+static struct pcpu_chunk *pcpu_create_chunk(gfp_t gfp)
 {
        const int nr_pages = pcpu_group_sizes[0] >> PAGE_SHIFT;
        struct pcpu_chunk *chunk;
        struct page *pages;
        int i;
 
-       chunk = pcpu_alloc_chunk();
+       chunk = pcpu_alloc_chunk(gfp);
        if (!chunk)
                return NULL;
 
-       pages = alloc_pages(GFP_KERNEL, order_base_2(nr_pages));
+       pages = alloc_pages(gfp | GFP_KERNEL, order_base_2(nr_pages));
        if (!pages) {
                pcpu_free_chunk(chunk);
                return NULL;
diff --git a/mm/percpu-vm.c b/mm/percpu-vm.c
index 15dab691ea70..f48ff9fc86fe 100644
--- a/mm/percpu-vm.c
+++ b/mm/percpu-vm.c
@@ -37,7 +37,7 @@ static struct page **pcpu_get_pages(void)
        lockdep_assert_held(&pcpu_alloc_mutex);
 
        if (!pages)
-               pages = pcpu_mem_zalloc(pages_size);
+               pages = pcpu_mem_zalloc(pages_size, 0);
        return pages;
 }
 
@@ -73,18 +73,21 @@ static void pcpu_free_pages(struct pcpu_chunk *chunk,
  * @pages: array to put the allocated pages into, indexed by pcpu_page_idx()
  * @page_start: page index of the first page to be allocated
  * @page_end: page index of the last page to be allocated + 1
+ * @gfp: allocation flags passed to the underlying allocator
  *
  * Allocate pages [@page_start,@page_end) into @pages for all units.
  * The allocation is for @chunk.  Percpu core doesn't care about the
  * content of @pages and will pass it verbatim to pcpu_map_pages().
  */
 static int pcpu_alloc_pages(struct pcpu_chunk *chunk,
-                           struct page **pages, int page_start, int page_end)
+                           struct page **pages, int page_start, int page_end,
+                           gfp_t gfp)
 {
-       const gfp_t gfp = GFP_KERNEL | __GFP_HIGHMEM | __GFP_COLD;
        unsigned int cpu, tcpu;
        int i;
 
+       gfp |= GFP_KERNEL | __GFP_HIGHMEM | __GFP_COLD;
+
        for_each_possible_cpu(cpu) {
                for (i = page_start; i < page_end; i++) {
                        struct page **pagep = &pages[pcpu_page_idx(cpu, i)];
@@ -262,6 +265,7 @@ static void pcpu_post_map_flush(struct pcpu_chunk *chunk,
  * @chunk: chunk of interest
  * @page_start: the start page
  * @page_end: the end page
+ * @gfp: allocation flags passed to the underlying memory allocator
  *
  * For each cpu, populate and map pages [@page_start,@page_end) into
  * @chunk.
@@ -270,7 +274,7 @@ static void pcpu_post_map_flush(struct pcpu_chunk *chunk,
  * pcpu_alloc_mutex, does GFP_KERNEL allocation.
  */
 static int pcpu_populate_chunk(struct pcpu_chunk *chunk,
-                              int page_start, int page_end)
+                              int page_start, int page_end, gfp_t gfp)
 {
        struct page **pages;
 
@@ -278,7 +282,7 @@ static int pcpu_populate_chunk(struct pcpu_chunk *chunk,
        if (!pages)
                return -ENOMEM;
 
-       if (pcpu_alloc_pages(chunk, pages, page_start, page_end))
+       if (pcpu_alloc_pages(chunk, pages, page_start, page_end, gfp))
                return -ENOMEM;
 
        if (pcpu_map_pages(chunk, pages, page_start, page_end)) {
@@ -325,12 +329,12 @@ static void pcpu_depopulate_chunk(struct pcpu_chunk 
*chunk,
        pcpu_free_pages(chunk, pages, page_start, page_end);
 }
 
-static struct pcpu_chunk *pcpu_create_chunk(void)
+static struct pcpu_chunk *pcpu_create_chunk(gfp_t gfp)
 {
        struct pcpu_chunk *chunk;
        struct vm_struct **vms;
 
-       chunk = pcpu_alloc_chunk();
+       chunk = pcpu_alloc_chunk(gfp);
        if (!chunk)
                return NULL;
 
diff --git a/mm/percpu.c b/mm/percpu.c
index a0e0c82c1e4c..c80e796bf35c 100644
--- a/mm/percpu.c
+++ b/mm/percpu.c
@@ -447,10 +447,12 @@ static void pcpu_next_fit_region(struct pcpu_chunk 
*chunk, int alloc_bits,
 /**
  * pcpu_mem_zalloc - allocate memory
  * @size: bytes to allocate
+ * @gfp: allocation flags
  *
  * Allocate @size bytes.  If @size is smaller than PAGE_SIZE,
- * kzalloc() is used; otherwise, vzalloc() is used.  The returned
- * memory is always zeroed.
+ * kzalloc() is used; otherwise, the equivalent of vzalloc() is used.
+ * This is to facilitate passing through whitelisted flags.  The
+ * returned memory is always zeroed.
  *
  * CONTEXT:
  * Does GFP_KERNEL allocation.
@@ -458,15 +460,16 @@ static void pcpu_next_fit_region(struct pcpu_chunk 
*chunk, int alloc_bits,
  * RETURNS:
  * Pointer to the allocated area on success, NULL on failure.
  */
-static void *pcpu_mem_zalloc(size_t size)
+static void *pcpu_mem_zalloc(size_t size, gfp_t gfp)
 {
        if (WARN_ON_ONCE(!slab_is_available()))
                return NULL;
 
        if (size <= PAGE_SIZE)
-               return kzalloc(size, GFP_KERNEL);
+               return kzalloc(size, gfp | GFP_KERNEL);
        else
-               return vzalloc(size);
+               return __vmalloc(size, gfp | GFP_KERNEL | __GFP_ZERO,
+                                PAGE_KERNEL);
 }
 
 /**
@@ -1154,12 +1157,12 @@ static struct pcpu_chunk * __init 
pcpu_alloc_first_chunk(unsigned long tmp_addr,
        return chunk;
 }
 
-static struct pcpu_chunk *pcpu_alloc_chunk(void)
+static struct pcpu_chunk *pcpu_alloc_chunk(gfp_t gfp)
 {
        struct pcpu_chunk *chunk;
        int region_bits;
 
-       chunk = pcpu_mem_zalloc(pcpu_chunk_struct_size);
+       chunk = pcpu_mem_zalloc(pcpu_chunk_struct_size, gfp);
        if (!chunk)
                return NULL;
 
@@ -1168,17 +1171,17 @@ static struct pcpu_chunk *pcpu_alloc_chunk(void)
        region_bits = pcpu_chunk_map_bits(chunk);
 
        chunk->alloc_map = pcpu_mem_zalloc(BITS_TO_LONGS(region_bits) *
-                                          sizeof(chunk->alloc_map[0]));
+                                          sizeof(chunk->alloc_map[0]), gfp);
        if (!chunk->alloc_map)
                goto alloc_map_fail;
 
        chunk->bound_map = pcpu_mem_zalloc(BITS_TO_LONGS(region_bits + 1) *
-                                          sizeof(chunk->bound_map[0]));
+                                          sizeof(chunk->bound_map[0]), gfp);
        if (!chunk->bound_map)
                goto bound_map_fail;
 
        chunk->md_blocks = pcpu_mem_zalloc(pcpu_chunk_nr_blocks(chunk) *
-                                          sizeof(chunk->md_blocks[0]));
+                                          sizeof(chunk->md_blocks[0]), gfp);
        if (!chunk->md_blocks)
                goto md_blocks_fail;
 
@@ -1277,9 +1280,10 @@ static void pcpu_chunk_depopulated(struct pcpu_chunk 
*chunk,
  * pcpu_addr_to_page           - translate address to physical address
  * pcpu_verify_alloc_info      - check alloc_info is acceptable during init
  */
-static int pcpu_populate_chunk(struct pcpu_chunk *chunk, int off, int size);
+static int pcpu_populate_chunk(struct pcpu_chunk *chunk, int off, int size,
+                              gfp_t gfp);
 static void pcpu_depopulate_chunk(struct pcpu_chunk *chunk, int off, int size);
-static struct pcpu_chunk *pcpu_create_chunk(void);
+static struct pcpu_chunk *pcpu_create_chunk(gfp_t gfp);
 static void pcpu_destroy_chunk(struct pcpu_chunk *chunk);
 static struct page *pcpu_addr_to_page(void *addr);
 static int __init pcpu_verify_alloc_info(const struct pcpu_alloc_info *ai);
@@ -1421,7 +1425,7 @@ static void __percpu *pcpu_alloc(size_t size, size_t 
align, bool reserved,
        }
 
        if (list_empty(&pcpu_slot[pcpu_nr_slots - 1])) {
-               chunk = pcpu_create_chunk();
+               chunk = pcpu_create_chunk(0);
                if (!chunk) {
                        err = "failed to allocate new chunk";
                        goto fail;
@@ -1450,7 +1454,7 @@ static void __percpu *pcpu_alloc(size_t size, size_t 
align, bool reserved,
                                           page_start, page_end) {
                        WARN_ON(chunk->immutable);
 
-                       ret = pcpu_populate_chunk(chunk, rs, re);
+                       ret = pcpu_populate_chunk(chunk, rs, re, 0);
 
                        spin_lock_irqsave(&pcpu_lock, flags);
                        if (ret) {
@@ -1561,10 +1565,17 @@ void __percpu *__alloc_reserved_percpu(size_t size, 
size_t align)
  * pcpu_balance_workfn - manage the amount of free chunks and populated pages
  * @work: unused
  *
- * Reclaim all fully free chunks except for the first one.
+ * Reclaim all fully free chunks except for the first one.  This is also
+ * responsible for maintaining the pool of empty populated pages.  However,
+ * it is possible that this is called when physical memory is scarce causing
+ * OOM killer to be triggered.  We should avoid doing so until an actual
+ * allocation causes the failure as it is possible that requests can be
+ * serviced from already backed regions.
  */
 static void pcpu_balance_workfn(struct work_struct *work)
 {
+       /* gfp flags passed to underlying allocators */
+       const gfp_t gfp = __GFP_NORETRY | __GFP_NOWARN;
        LIST_HEAD(to_free);
        struct list_head *free_head = &pcpu_slot[pcpu_nr_slots - 1];
        struct pcpu_chunk *chunk, *next;
@@ -1645,7 +1656,7 @@ static void pcpu_balance_workfn(struct work_struct *work)
                                           chunk->nr_pages) {
                        int nr = min(re - rs, nr_to_pop);
 
-                       ret = pcpu_populate_chunk(chunk, rs, rs + nr);
+                       ret = pcpu_populate_chunk(chunk, rs, rs + nr, gfp);
                        if (!ret) {
                                nr_to_pop -= nr;
                                spin_lock_irq(&pcpu_lock);
@@ -1662,7 +1673,7 @@ static void pcpu_balance_workfn(struct work_struct *work)
 
        if (nr_to_pop) {
                /* ran out of chunks to populate, create a new one and retry */
-               chunk = pcpu_create_chunk();
+               chunk = pcpu_create_chunk(gfp);
                if (chunk) {
                        spin_lock_irq(&pcpu_lock);
                        pcpu_chunk_relocate(chunk, -1);
diff --git a/net/bluetooth/smp.c b/net/bluetooth/smp.c
index a0ef89772c36..a27704ff13a9 100644
--- a/net/bluetooth/smp.c
+++ b/net/bluetooth/smp.c
@@ -2287,8 +2287,14 @@ static u8 smp_cmd_security_req(struct l2cap_conn *conn, 
struct sk_buff *skb)
        else
                sec_level = authreq_to_seclevel(auth);
 
-       if (smp_sufficient_security(hcon, sec_level, SMP_USE_LTK))
+       if (smp_sufficient_security(hcon, sec_level, SMP_USE_LTK)) {
+               /* If link is already encrypted with sufficient security we
+                * still need refresh encryption as per Core Spec 5.0 Vol 3,
+                * Part H 2.4.6
+                */
+               smp_ltk_encrypt(conn, hcon->sec_level);
                return 0;
+       }
 
        if (sec_level > hcon->pending_sec_level)
                hcon->pending_sec_level = sec_level;
diff --git a/net/bridge/netfilter/ebt_among.c b/net/bridge/netfilter/ebt_among.c
index 59baaecd3e54..0b589a6b365c 100644
--- a/net/bridge/netfilter/ebt_among.c
+++ b/net/bridge/netfilter/ebt_among.c
@@ -177,6 +177,28 @@ static bool poolsize_invalid(const struct ebt_mac_wormhash 
*w)
        return w && w->poolsize >= (INT_MAX / sizeof(struct 
ebt_mac_wormhash_tuple));
 }
 
+static bool wormhash_offset_invalid(int off, unsigned int len)
+{
+       if (off == 0) /* not present */
+               return false;
+
+       if (off < (int)sizeof(struct ebt_among_info) ||
+           off % __alignof__(struct ebt_mac_wormhash))
+               return true;
+
+       off += sizeof(struct ebt_mac_wormhash);
+
+       return off > len;
+}
+
+static bool wormhash_sizes_valid(const struct ebt_mac_wormhash *wh, int a, int 
b)
+{
+       if (a == 0)
+               a = sizeof(struct ebt_among_info);
+
+       return ebt_mac_wormhash_size(wh) + a == b;
+}
+
 static int ebt_among_mt_check(const struct xt_mtchk_param *par)
 {
        const struct ebt_among_info *info = par->matchinfo;
@@ -189,6 +211,10 @@ static int ebt_among_mt_check(const struct xt_mtchk_param 
*par)
        if (expected_length > em->match_size)
                return -EINVAL;
 
+       if (wormhash_offset_invalid(info->wh_dst_ofs, em->match_size) ||
+           wormhash_offset_invalid(info->wh_src_ofs, em->match_size))
+               return -EINVAL;
+
        wh_dst = ebt_among_wh_dst(info);
        if (poolsize_invalid(wh_dst))
                return -EINVAL;
@@ -201,6 +227,14 @@ static int ebt_among_mt_check(const struct xt_mtchk_param 
*par)
        if (poolsize_invalid(wh_src))
                return -EINVAL;
 
+       if (info->wh_src_ofs < info->wh_dst_ofs) {
+               if (!wormhash_sizes_valid(wh_src, info->wh_src_ofs, 
info->wh_dst_ofs))
+                       return -EINVAL;
+       } else {
+               if (!wormhash_sizes_valid(wh_dst, info->wh_dst_ofs, 
info->wh_src_ofs))
+                       return -EINVAL;
+       }
+
        expected_length += ebt_mac_wormhash_size(wh_src);
 
        if (em->match_size != EBT_ALIGN(expected_length)) {
diff --git a/net/ipv4/netfilter/nf_conntrack_l3proto_ipv4.c 
b/net/ipv4/netfilter/nf_conntrack_l3proto_ipv4.c
index 997a96896f1a..37fef48c8826 100644
--- a/net/ipv4/netfilter/nf_conntrack_l3proto_ipv4.c
+++ b/net/ipv4/netfilter/nf_conntrack_l3proto_ipv4.c
@@ -159,8 +159,20 @@ static unsigned int ipv4_conntrack_local(void *priv,
            ip_hdrlen(skb) < sizeof(struct iphdr))
                return NF_ACCEPT;
 
-       if (ip_is_fragment(ip_hdr(skb))) /* IP_NODEFRAG setsockopt set */
+       if (ip_is_fragment(ip_hdr(skb))) { /* IP_NODEFRAG setsockopt set */
+               enum ip_conntrack_info ctinfo;
+               struct nf_conn *tmpl;
+
+               tmpl = nf_ct_get(skb, &ctinfo);
+               if (tmpl && nf_ct_is_template(tmpl)) {
+                       /* when skipping ct, clear templates to avoid fooling
+                        * later targets/matches
+                        */
+                       skb->_nfct = 0;
+                       nf_ct_put(tmpl);
+               }
                return NF_ACCEPT;
+       }
 
        return nf_conntrack_in(state->net, PF_INET, state->hook, skb);
 }
diff --git a/net/ipv6/ip6_vti.c b/net/ipv6/ip6_vti.c
index 413f01be0c9b..bcdc2d557de1 100644
--- a/net/ipv6/ip6_vti.c
+++ b/net/ipv6/ip6_vti.c
@@ -626,7 +626,6 @@ static void vti6_link_config(struct ip6_tnl *t)
 {
        struct net_device *dev = t->dev;
        struct __ip6_tnl_parm *p = &t->parms;
-       struct net_device *tdev = NULL;
 
        memcpy(dev->dev_addr, &p->laddr, sizeof(struct in6_addr));
        memcpy(dev->broadcast, &p->raddr, sizeof(struct in6_addr));
@@ -639,25 +638,6 @@ static void vti6_link_config(struct ip6_tnl *t)
                dev->flags |= IFF_POINTOPOINT;
        else
                dev->flags &= ~IFF_POINTOPOINT;
-
-       if (p->flags & IP6_TNL_F_CAP_XMIT) {
-               int strict = (ipv6_addr_type(&p->raddr) &
-                             (IPV6_ADDR_MULTICAST | IPV6_ADDR_LINKLOCAL));
-               struct rt6_info *rt = rt6_lookup(t->net,
-                                                &p->raddr, &p->laddr,
-                                                p->link, strict);
-
-               if (rt)
-                       tdev = rt->dst.dev;
-               ip6_rt_put(rt);
-       }
-
-       if (!tdev && p->link)
-               tdev = __dev_get_by_index(t->net, p->link);
-
-       if (tdev)
-               dev->mtu = max_t(int, tdev->mtu - dev->hard_header_len,
-                                IPV6_MIN_MTU);
 }
 
 /**
diff --git a/net/l2tp/l2tp_core.c b/net/l2tp/l2tp_core.c
index 490d7360222e..316869df91e8 100644
--- a/net/l2tp/l2tp_core.c
+++ b/net/l2tp/l2tp_core.c
@@ -113,6 +113,13 @@ struct l2tp_net {
        spinlock_t l2tp_session_hlist_lock;
 };
 
+#if IS_ENABLED(CONFIG_IPV6)
+static bool l2tp_sk_is_v6(struct sock *sk)
+{
+       return sk->sk_family == PF_INET6 &&
+              !ipv6_addr_v4mapped(&sk->sk_v6_daddr);
+}
+#endif
 
 static inline struct l2tp_tunnel *l2tp_tunnel(struct sock *sk)
 {
@@ -1130,7 +1137,7 @@ static int l2tp_xmit_core(struct l2tp_session *session, 
struct sk_buff *skb,
        /* Queue the packet to IP for output */
        skb->ignore_df = 1;
 #if IS_ENABLED(CONFIG_IPV6)
-       if (tunnel->sock->sk_family == PF_INET6 && !tunnel->v4mapped)
+       if (l2tp_sk_is_v6(tunnel->sock))
                error = inet6_csk_xmit(tunnel->sock, skb, NULL);
        else
 #endif
@@ -1193,6 +1200,15 @@ int l2tp_xmit_skb(struct l2tp_session *session, struct 
sk_buff *skb, int hdr_len
                goto out_unlock;
        }
 
+       /* The user-space may change the connection status for the user-space
+        * provided socket at run time: we must check it under the socket lock
+        */
+       if (tunnel->fd >= 0 && sk->sk_state != TCP_ESTABLISHED) {
+               kfree_skb(skb);
+               ret = NET_XMIT_DROP;
+               goto out_unlock;
+       }
+
        /* Get routing info from the tunnel socket */
        skb_dst_drop(skb);
        skb_dst_set(skb, dst_clone(__sk_dst_check(sk, 0)));
@@ -1212,7 +1228,7 @@ int l2tp_xmit_skb(struct l2tp_session *session, struct 
sk_buff *skb, int hdr_len
 
                /* Calculate UDP checksum if configured to do so */
 #if IS_ENABLED(CONFIG_IPV6)
-               if (sk->sk_family == PF_INET6 && !tunnel->v4mapped)
+               if (l2tp_sk_is_v6(sk))
                        udp6_set_csum(udp_get_no_check6_tx(sk),
                                      skb, &inet6_sk(sk)->saddr,
                                      &sk->sk_v6_daddr, udp_len);
@@ -1616,24 +1632,6 @@ int l2tp_tunnel_create(struct net *net, int fd, int 
version, u32 tunnel_id, u32
        if (cfg != NULL)
                tunnel->debug = cfg->debug;
 
-#if IS_ENABLED(CONFIG_IPV6)
-       if (sk->sk_family == PF_INET6) {
-               struct ipv6_pinfo *np = inet6_sk(sk);
-
-               if (ipv6_addr_v4mapped(&np->saddr) &&
-                   ipv6_addr_v4mapped(&sk->sk_v6_daddr)) {
-                       struct inet_sock *inet = inet_sk(sk);
-
-                       tunnel->v4mapped = true;
-                       inet->inet_saddr = np->saddr.s6_addr32[3];
-                       inet->inet_rcv_saddr = sk->sk_v6_rcv_saddr.s6_addr32[3];
-                       inet->inet_daddr = sk->sk_v6_daddr.s6_addr32[3];
-               } else {
-                       tunnel->v4mapped = false;
-               }
-       }
-#endif
-
        /* Mark socket as an encapsulation socket. See net/ipv4/udp.c */
        tunnel->encap = encap;
        if (encap == L2TP_ENCAPTYPE_UDP) {
diff --git a/net/l2tp/l2tp_core.h b/net/l2tp/l2tp_core.h
index 67c79d9b5c6c..9e2f1fda1b03 100644
--- a/net/l2tp/l2tp_core.h
+++ b/net/l2tp/l2tp_core.h
@@ -195,9 +195,6 @@ struct l2tp_tunnel {
        struct sock             *sock;          /* Parent socket */
        int                     fd;             /* Parent fd, if tunnel socket
                                                 * was created by userspace */
-#if IS_ENABLED(CONFIG_IPV6)
-       bool                    v4mapped;
-#endif
 
        struct work_struct      del_work;
 
diff --git a/net/netfilter/x_tables.c b/net/netfilter/x_tables.c
index 60c92158a2cd..a450a1c8804b 100644
--- a/net/netfilter/x_tables.c
+++ b/net/netfilter/x_tables.c
@@ -423,6 +423,36 @@ textify_hooks(char *buf, size_t size, unsigned int mask, 
uint8_t nfproto)
        return buf;
 }
 
+/**
+ * xt_check_proc_name - check that name is suitable for /proc file creation
+ *
+ * @name: file name candidate
+ * @size: length of buffer
+ *
+ * some x_tables modules wish to create a file in /proc.
+ * This function makes sure that the name is suitable for this
+ * purpose, it checks that name is NUL terminated and isn't a 'special'
+ * name, like "..".
+ *
+ * returns negative number on error or 0 if name is useable.
+ */
+int xt_check_proc_name(const char *name, unsigned int size)
+{
+       if (name[0] == '\0')
+               return -EINVAL;
+
+       if (strnlen(name, size) == size)
+               return -ENAMETOOLONG;
+
+       if (strcmp(name, ".") == 0 ||
+           strcmp(name, "..") == 0 ||
+           strchr(name, '/'))
+               return -EINVAL;
+
+       return 0;
+}
+EXPORT_SYMBOL(xt_check_proc_name);
+
 int xt_check_match(struct xt_mtchk_param *par,
                   unsigned int size, u_int8_t proto, bool inv_proto)
 {
@@ -1008,7 +1038,12 @@ struct xt_table_info *xt_alloc_table_info(unsigned int 
size)
        if ((size >> PAGE_SHIFT) + 2 > totalram_pages)
                return NULL;
 
-       info = kvmalloc(sz, GFP_KERNEL);
+       /* __GFP_NORETRY is not fully supported by kvmalloc but it should
+        * work reasonably well if sz is too large and bail out rather
+        * than shoot all processes down before realizing there is nothing
+        * more to reclaim.
+        */
+       info = kvmalloc(sz, GFP_KERNEL | __GFP_NORETRY);
        if (!info)
                return NULL;
 
diff --git a/net/netfilter/xt_hashlimit.c b/net/netfilter/xt_hashlimit.c
index b8a3e740ffd4..0c034597b9b8 100644
--- a/net/netfilter/xt_hashlimit.c
+++ b/net/netfilter/xt_hashlimit.c
@@ -915,8 +915,9 @@ static int hashlimit_mt_check_v1(const struct 
xt_mtchk_param *par)
        struct hashlimit_cfg3 cfg = {};
        int ret;
 
-       if (info->name[sizeof(info->name) - 1] != '\0')
-               return -EINVAL;
+       ret = xt_check_proc_name(info->name, sizeof(info->name));
+       if (ret)
+               return ret;
 
        ret = cfg_copy(&cfg, (void *)&info->cfg, 1);
 
@@ -933,8 +934,9 @@ static int hashlimit_mt_check_v2(const struct 
xt_mtchk_param *par)
        struct hashlimit_cfg3 cfg = {};
        int ret;
 
-       if (info->name[sizeof(info->name) - 1] != '\0')
-               return -EINVAL;
+       ret = xt_check_proc_name(info->name, sizeof(info->name));
+       if (ret)
+               return ret;
 
        ret = cfg_copy(&cfg, (void *)&info->cfg, 2);
 
@@ -948,9 +950,11 @@ static int hashlimit_mt_check_v2(const struct 
xt_mtchk_param *par)
 static int hashlimit_mt_check(const struct xt_mtchk_param *par)
 {
        struct xt_hashlimit_mtinfo3 *info = par->matchinfo;
+       int ret;
 
-       if (info->name[sizeof(info->name) - 1] != '\0')
-               return -EINVAL;
+       ret = xt_check_proc_name(info->name, sizeof(info->name));
+       if (ret)
+               return ret;
 
        return hashlimit_mt_check_common(par, &info->hinfo, &info->cfg,
                                         info->name, 3);
diff --git a/net/netfilter/xt_recent.c b/net/netfilter/xt_recent.c
index 245fa350a7a8..cf96d230e5a3 100644
--- a/net/netfilter/xt_recent.c
+++ b/net/netfilter/xt_recent.c
@@ -361,9 +361,9 @@ static int recent_mt_check(const struct xt_mtchk_param *par,
                        info->hit_count, XT_RECENT_MAX_NSTAMPS - 1);
                return -EINVAL;
        }
-       if (info->name[0] == '\0' ||
-           strnlen(info->name, XT_RECENT_NAME_LEN) == XT_RECENT_NAME_LEN)
-               return -EINVAL;
+       ret = xt_check_proc_name(info->name, sizeof(info->name));
+       if (ret)
+               return ret;
 
        if (ip_pkt_list_tot && info->hit_count < ip_pkt_list_tot)
                nstamp_mask = roundup_pow_of_two(ip_pkt_list_tot) - 1;
diff --git a/net/xfrm/xfrm_ipcomp.c b/net/xfrm/xfrm_ipcomp.c
index ccfdc7115a83..a00ec715aa46 100644
--- a/net/xfrm/xfrm_ipcomp.c
+++ b/net/xfrm/xfrm_ipcomp.c
@@ -283,7 +283,7 @@ static struct crypto_comp * __percpu 
*ipcomp_alloc_tfms(const char *alg_name)
                struct crypto_comp *tfm;
 
                /* This can be any valid CPU ID so we don't need locking. */
-               tfm = __this_cpu_read(*pos->tfms);
+               tfm = this_cpu_read(*pos->tfms);
 
                if (!strcmp(crypto_comp_name(tfm), alg_name)) {
                        pos->users++;
diff --git a/net/xfrm/xfrm_state.c b/net/xfrm/xfrm_state.c
index bab20c626943..8f13fb57eab5 100644
--- a/net/xfrm/xfrm_state.c
+++ b/net/xfrm/xfrm_state.c
@@ -2050,6 +2050,11 @@ int xfrm_user_policy(struct sock *sk, int optname, u8 
__user *optval, int optlen
        struct xfrm_mgr *km;
        struct xfrm_policy *pol = NULL;
 
+#ifdef CONFIG_COMPAT
+       if (in_compat_syscall())
+               return -EOPNOTSUPP;
+#endif
+
        if (!optval && !optlen) {
                xfrm_sk_policy_insert(sk, XFRM_POLICY_IN, NULL);
                xfrm_sk_policy_insert(sk, XFRM_POLICY_OUT, NULL);
diff --git a/net/xfrm/xfrm_user.c b/net/xfrm/xfrm_user.c
index 0edf38d2afd9..dbfcfefd6d69 100644
--- a/net/xfrm/xfrm_user.c
+++ b/net/xfrm/xfrm_user.c
@@ -121,22 +121,17 @@ static inline int verify_replay(struct xfrm_usersa_info 
*p,
        struct nlattr *rt = attrs[XFRMA_REPLAY_ESN_VAL];
        struct xfrm_replay_state_esn *rs;
 
-       if (p->flags & XFRM_STATE_ESN) {
-               if (!rt)
-                       return -EINVAL;
+       if (!rt)
+               return (p->flags & XFRM_STATE_ESN) ? -EINVAL : 0;
 
-               rs = nla_data(rt);
+       rs = nla_data(rt);
 
-               if (rs->bmp_len > XFRMA_REPLAY_ESN_MAX / sizeof(rs->bmp[0]) / 8)
-                       return -EINVAL;
-
-               if (nla_len(rt) < xfrm_replay_state_esn_len(rs) &&
-                   nla_len(rt) != sizeof(*rs))
-                       return -EINVAL;
-       }
+       if (rs->bmp_len > XFRMA_REPLAY_ESN_MAX / sizeof(rs->bmp[0]) / 8)
+               return -EINVAL;
 
-       if (!rt)
-               return 0;
+       if (nla_len(rt) < xfrm_replay_state_esn_len(rs) &&
+           nla_len(rt) != sizeof(*rs))
+               return -EINVAL;
 
        /* As only ESP and AH support ESN feature. */
        if ((p->id.proto != IPPROTO_ESP) && (p->id.proto != IPPROTO_AH))
diff --git a/sound/core/oss/pcm_oss.c b/sound/core/oss/pcm_oss.c
index 012881461058..d6e9a18fd821 100644
--- a/sound/core/oss/pcm_oss.c
+++ b/sound/core/oss/pcm_oss.c
@@ -1326,7 +1326,7 @@ static ssize_t snd_pcm_oss_write2(struct 
snd_pcm_substream *substream, const cha
 static ssize_t snd_pcm_oss_write1(struct snd_pcm_substream *substream, const 
char __user *buf, size_t bytes)
 {
        size_t xfer = 0;
-       ssize_t tmp;
+       ssize_t tmp = 0;
        struct snd_pcm_runtime *runtime = substream->runtime;
 
        if (atomic_read(&substream->mmap_count))
@@ -1433,7 +1433,7 @@ static ssize_t snd_pcm_oss_read2(struct snd_pcm_substream 
*substream, char *buf,
 static ssize_t snd_pcm_oss_read1(struct snd_pcm_substream *substream, char 
__user *buf, size_t bytes)
 {
        size_t xfer = 0;
-       ssize_t tmp;
+       ssize_t tmp = 0;
        struct snd_pcm_runtime *runtime = substream->runtime;
 
        if (atomic_read(&substream->mmap_count))
diff --git a/sound/core/pcm_native.c b/sound/core/pcm_native.c
index 499f75b18e09..eba2bedcbc81 100644
--- a/sound/core/pcm_native.c
+++ b/sound/core/pcm_native.c
@@ -3424,7 +3424,7 @@ int snd_pcm_lib_default_mmap(struct snd_pcm_substream 
*substream,
                                         area,
                                         substream->runtime->dma_area,
                                         substream->runtime->dma_addr,
-                                        area->vm_end - area->vm_start);
+                                        substream->runtime->dma_bytes);
 #endif /* CONFIG_X86 */
        /* mmap with fault handler */
        area->vm_ops = &snd_pcm_vm_ops_data_fault;
diff --git a/sound/usb/quirks.c b/sound/usb/quirks.c
index ed56cd307059..58f94f399efb 100644
--- a/sound/usb/quirks.c
+++ b/sound/usb/quirks.c
@@ -1177,6 +1177,7 @@ static bool is_teac_dsd_dac(unsigned int id)
        switch (id) {
        case USB_ID(0x0644, 0x8043): /* TEAC UD-501/UD-503/NT-503 */
        case USB_ID(0x0644, 0x8044): /* Esoteric D-05X */
+       case USB_ID(0x0644, 0x804a): /* TEAC UD-301 */
                return true;
        }
        return false;

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