25 files changed, 118 insertions, 436 deletions

diff --git a/include/linux/amba/clcd-regs.h b/include/linux/amba/clcd-regs.h
deleted file mode 100644
index 421b0fa90d6a..000000000000
--- a/include/linux/amba/clcd-regs.h
+++ /dev/null
@@ -1,87 +0,0 @@
-/*
- * David A Rusling
- *
- * Copyright (C) 2001 ARM Limited
- *
- * This file is subject to the terms and conditions of the GNU General Public
- * License.  See the file COPYING in the main directory of this archive
- * for more details.
- */
-
-#ifndef AMBA_CLCD_REGS_H
-#define AMBA_CLCD_REGS_H
-
-/*
- * CLCD Controller Internal Register addresses
- */
-#define CLCD_TIM0		0x00000000
-#define CLCD_TIM1 		0x00000004
-#define CLCD_TIM2 		0x00000008
-#define CLCD_TIM3 		0x0000000c
-#define CLCD_UBAS 		0x00000010
-#define CLCD_LBAS 		0x00000014
-
-#define CLCD_PL110_IENB		0x00000018
-#define CLCD_PL110_CNTL		0x0000001c
-#define CLCD_PL110_STAT		0x00000020
-#define CLCD_PL110_INTR 	0x00000024
-#define CLCD_PL110_UCUR		0x00000028
-#define CLCD_PL110_LCUR		0x0000002C
-
-#define CLCD_PL111_CNTL		0x00000018
-#define CLCD_PL111_IENB		0x0000001c
-#define CLCD_PL111_RIS		0x00000020
-#define CLCD_PL111_MIS		0x00000024
-#define CLCD_PL111_ICR		0x00000028
-#define CLCD_PL111_UCUR		0x0000002c
-#define CLCD_PL111_LCUR		0x00000030
-
-#define CLCD_PALL 		0x00000200
-#define CLCD_PALETTE		0x00000200
-
-#define TIM2_PCD_LO_MASK	GENMASK(4, 0)
-#define TIM2_PCD_LO_BITS	5
-#define TIM2_CLKSEL		(1 << 5)
-#define TIM2_ACB_MASK		GENMASK(10, 6)
-#define TIM2_IVS		(1 << 11)
-#define TIM2_IHS		(1 << 12)
-#define TIM2_IPC		(1 << 13)
-#define TIM2_IOE		(1 << 14)
-#define TIM2_BCD		(1 << 26)
-#define TIM2_PCD_HI_MASK	GENMASK(31, 27)
-#define TIM2_PCD_HI_BITS	5
-#define TIM2_PCD_HI_SHIFT	27
-
-#define CNTL_LCDEN		(1 << 0)
-#define CNTL_LCDBPP1		(0 << 1)
-#define CNTL_LCDBPP2		(1 << 1)
-#define CNTL_LCDBPP4		(2 << 1)
-#define CNTL_LCDBPP8		(3 << 1)
-#define CNTL_LCDBPP16		(4 << 1)
-#define CNTL_LCDBPP16_565	(6 << 1)
-#define CNTL_LCDBPP16_444	(7 << 1)
-#define CNTL_LCDBPP24		(5 << 1)
-#define CNTL_LCDBW		(1 << 4)
-#define CNTL_LCDTFT		(1 << 5)
-#define CNTL_LCDMONO8		(1 << 6)
-#define CNTL_LCDDUAL		(1 << 7)
-#define CNTL_BGR		(1 << 8)
-#define CNTL_BEBO		(1 << 9)
-#define CNTL_BEPO		(1 << 10)
-#define CNTL_LCDPWR		(1 << 11)
-#define CNTL_LCDVCOMP(x)	((x) << 12)
-#define CNTL_LDMAFIFOTIME	(1 << 15)
-#define CNTL_WATERMARK		(1 << 16)
-
-/* ST Microelectronics variant bits */
-#define CNTL_ST_1XBPP_444	0x0
-#define CNTL_ST_1XBPP_5551	(1 << 17)
-#define CNTL_ST_1XBPP_565	(1 << 18)
-#define CNTL_ST_CDWID_12	0x0
-#define CNTL_ST_CDWID_16	(1 << 19)
-#define CNTL_ST_CDWID_18	(1 << 20)
-#define CNTL_ST_CDWID_24	((1 << 19)|(1 << 20))
-#define CNTL_ST_CEAEN		(1 << 21)
-#define CNTL_ST_LCDBPP24_PACKED	(6 << 1)
-
-#endif /* AMBA_CLCD_REGS_H */
diff --git a/include/linux/amba/clcd.h b/include/linux/amba/clcd.h
deleted file mode 100644
index b6e0cbeaf533..000000000000
--- a/include/linux/amba/clcd.h
+++ /dev/null
@@ -1,290 +0,0 @@
-/*
- * linux/include/asm-arm/hardware/amba_clcd.h -- Integrator LCD panel.
- *
- * David A Rusling
- *
- * Copyright (C) 2001 ARM Limited
- *
- * This file is subject to the terms and conditions of the GNU General Public
- * License.  See the file COPYING in the main directory of this archive
- * for more details.
- */
-#include <linux/fb.h>
-#include <linux/amba/clcd-regs.h>
-
-enum {
-	/* individual formats */
-	CLCD_CAP_RGB444		= (1 << 0),
-	CLCD_CAP_RGB5551	= (1 << 1),
-	CLCD_CAP_RGB565		= (1 << 2),
-	CLCD_CAP_RGB888		= (1 << 3),
-	CLCD_CAP_BGR444		= (1 << 4),
-	CLCD_CAP_BGR5551	= (1 << 5),
-	CLCD_CAP_BGR565		= (1 << 6),
-	CLCD_CAP_BGR888		= (1 << 7),
-
-	/* connection layouts */
-	CLCD_CAP_444		= CLCD_CAP_RGB444 | CLCD_CAP_BGR444,
-	CLCD_CAP_5551		= CLCD_CAP_RGB5551 | CLCD_CAP_BGR5551,
-	CLCD_CAP_565		= CLCD_CAP_RGB565 | CLCD_CAP_BGR565,
-	CLCD_CAP_888		= CLCD_CAP_RGB888 | CLCD_CAP_BGR888,
-
-	/* red/blue ordering */
-	CLCD_CAP_RGB		= CLCD_CAP_RGB444 | CLCD_CAP_RGB5551 |
-				  CLCD_CAP_RGB565 | CLCD_CAP_RGB888,
-	CLCD_CAP_BGR		= CLCD_CAP_BGR444 | CLCD_CAP_BGR5551 |
-				  CLCD_CAP_BGR565 | CLCD_CAP_BGR888,
-
-	CLCD_CAP_ALL		= CLCD_CAP_BGR | CLCD_CAP_RGB,
-};
-
-struct backlight_device;
-
-struct clcd_panel {
-	struct fb_videomode	mode;
-	signed short		width;	/* width in mm */
-	signed short		height;	/* height in mm */
-	u32			tim2;
-	u32			tim3;
-	u32			cntl;
-	u32			caps;
-	unsigned int		bpp:8,
-				fixedtimings:1,
-				grayscale:1;
-	unsigned int		connector;
-	struct backlight_device	*backlight;
-	/*
-	 * If the B/R lines are switched between the CLCD
-	 * and the panel we need to know this and not try to
-	 * compensate with the BGR bit in the control register.
-	 */
-	bool			bgr_connection;
-};
-
-struct clcd_regs {
-	u32			tim0;
-	u32			tim1;
-	u32			tim2;
-	u32			tim3;
-	u32			cntl;
-	unsigned long		pixclock;
-};
-
-struct clcd_fb;
-
-/*
- * the board-type specific routines
- */
-struct clcd_board {
-	const char *name;
-
-	/*
-	 * Optional.  Hardware capability flags.
-	 */
-	u32	caps;
-
-	/*
-	 * Optional.  Check whether the var structure is acceptable
-	 * for this display.
-	 */
-	int	(*check)(struct clcd_fb *fb, struct fb_var_screeninfo *var);
-
-	/*
-	 * Compulsory.  Decode fb->fb.var into regs->*.  In the case of
-	 * fixed timing, set regs->* to the register values required.
-	 */
-	void	(*decode)(struct clcd_fb *fb, struct clcd_regs *regs);
-
-	/*
-	 * Optional.  Disable any extra display hardware.
-	 */
-	void	(*disable)(struct clcd_fb *);
-
-	/*
-	 * Optional.  Enable any extra display hardware.
-	 */
-	void	(*enable)(struct clcd_fb *);
-
-	/*
-	 * Setup platform specific parts of CLCD driver
-	 */
-	int	(*setup)(struct clcd_fb *);
-
-	/*
-	 * mmap the framebuffer memory
-	 */
-	int	(*mmap)(struct clcd_fb *, struct vm_area_struct *);
-
-	/*
-	 * Remove platform specific parts of CLCD driver
-	 */
-	void	(*remove)(struct clcd_fb *);
-};
-
-struct amba_device;
-struct clk;
-
-/* this data structure describes each frame buffer device we find */
-struct clcd_fb {
-	struct fb_info		fb;
-	struct amba_device	*dev;
-	struct clk		*clk;
-	struct clcd_panel	*panel;
-	struct clcd_board	*board;
-	void			*board_data;
-	void __iomem		*regs;
-	u16			off_ienb;
-	u16			off_cntl;
-	u32			clcd_cntl;
-	u32			cmap[16];
-	bool			clk_enabled;
-};
-
-static inline void clcdfb_decode(struct clcd_fb *fb, struct clcd_regs *regs)
-{
-	struct fb_var_screeninfo *var = &fb->fb.var;
-	u32 val, cpl;
-
-	/*
-	 * Program the CLCD controller registers and start the CLCD
-	 */
-	val = ((var->xres / 16) - 1) << 2;
-	val |= (var->hsync_len - 1) << 8;
-	val |= (var->right_margin - 1) << 16;
-	val |= (var->left_margin - 1) << 24;
-	regs->tim0 = val;
-
-	val = var->yres;
-	if (fb->panel->cntl & CNTL_LCDDUAL)
-		val /= 2;
-	val -= 1;
-	val |= (var->vsync_len - 1) << 10;
-	val |= var->lower_margin << 16;
-	val |= var->upper_margin << 24;
-	regs->tim1 = val;
-
-	val = fb->panel->tim2;
-	val |= var->sync & FB_SYNC_HOR_HIGH_ACT  ? 0 : TIM2_IHS;
-	val |= var->sync & FB_SYNC_VERT_HIGH_ACT ? 0 : TIM2_IVS;
-
-	cpl = var->xres_virtual;
-	if (fb->panel->cntl & CNTL_LCDTFT)	  /* TFT */
-		/* / 1 */;
-	else if (!var->grayscale)		  /* STN color */
-		cpl = cpl * 8 / 3;
-	else if (fb->panel->cntl & CNTL_LCDMONO8) /* STN monochrome, 8bit */
-		cpl /= 8;
-	else					  /* STN monochrome, 4bit */
-		cpl /= 4;
-
-	regs->tim2 = val | ((cpl - 1) << 16);
-
-	regs->tim3 = fb->panel->tim3;
-
-	val = fb->panel->cntl;
-	if (var->grayscale)
-		val |= CNTL_LCDBW;
-
-	if (fb->panel->caps && fb->board->caps && var->bits_per_pixel >= 16) {
-		/*
-		 * if board and panel supply capabilities, we can support
-		 * changing BGR/RGB depending on supplied parameters. Here
-		 * we switch to what the framebuffer is providing if need
-		 * be, so if the framebuffer is BGR but the display connection
-		 * is RGB (first case) we switch it around. Vice versa mutatis
-		 * mutandis if the framebuffer is RGB but the display connection
-		 * is BGR, we flip it around.
-		 */
-		if (var->red.offset == 0)
-			val &= ~CNTL_BGR;
-		else
-			val |= CNTL_BGR;
-		if (fb->panel->bgr_connection)
-			val ^= CNTL_BGR;
-	}
-
-	switch (var->bits_per_pixel) {
-	case 1:
-		val |= CNTL_LCDBPP1;
-		break;
-	case 2:
-		val |= CNTL_LCDBPP2;
-		break;
-	case 4:
-		val |= CNTL_LCDBPP4;
-		break;
-	case 8:
-		val |= CNTL_LCDBPP8;
-		break;
-	case 16:
-		/*
-		 * PL110 cannot choose between 5551 and 565 modes in its
-		 * control register.  It is possible to use 565 with
-		 * custom external wiring.
-		 */
-		if (amba_part(fb->dev) == 0x110 ||
-		    var->green.length == 5)
-			val |= CNTL_LCDBPP16;
-		else if (var->green.length == 6)
-			val |= CNTL_LCDBPP16_565;
-		else
-			val |= CNTL_LCDBPP16_444;
-		break;
-	case 32:
-		val |= CNTL_LCDBPP24;
-		break;
-	}
-
-	regs->cntl = val;
-	regs->pixclock = var->pixclock;
-}
-
-static inline int clcdfb_check(struct clcd_fb *fb, struct fb_var_screeninfo *var)
-{
-	var->xres_virtual = var->xres = (var->xres + 15) & ~15;
-	var->yres_virtual = var->yres = (var->yres + 1) & ~1;
-
-#define CHECK(e,l,h) (var->e < l || var->e > h)
-	if (CHECK(right_margin, (5+1), 256) ||	/* back porch */
-	    CHECK(left_margin, (5+1), 256) ||	/* front porch */
-	    CHECK(hsync_len, (5+1), 256) ||
-	    var->xres > 4096 ||
-	    var->lower_margin > 255 ||		/* back porch */
-	    var->upper_margin > 255 ||		/* front porch */
-	    var->vsync_len > 32 ||
-	    var->yres > 1024)
-		return -EINVAL;
-#undef CHECK
-
-	/* single panel mode: PCD = max(PCD, 1) */
-	/* dual panel mode: PCD = max(PCD, 5) */
-
-	/*
-	 * You can't change the grayscale setting, and
-	 * we can only do non-interlaced video.
-	 */
-	if (var->grayscale != fb->fb.var.grayscale ||
-	    (var->vmode & FB_VMODE_MASK) != FB_VMODE_NONINTERLACED)
-		return -EINVAL;
-
-#define CHECK(e) (var->e != fb->fb.var.e)
-	if (fb->panel->fixedtimings &&
-	    (CHECK(xres)		||
-	     CHECK(yres)		||
-	     CHECK(bits_per_pixel)	||
-	     CHECK(pixclock)		||
-	     CHECK(left_margin)		||
-	     CHECK(right_margin)	||
-	     CHECK(upper_margin)	||
-	     CHECK(lower_margin)	||
-	     CHECK(hsync_len)		||
-	     CHECK(vsync_len)		||
-	     CHECK(sync)))
-		return -EINVAL;
-#undef CHECK
-
-	var->nonstd = 0;
-	var->accel_flags = 0;
-
-	return 0;
-}
diff --git a/include/linux/can/skb.h b/include/linux/can/skb.h
index a954def26c0d..900b9f4e0605 100644
--- a/include/linux/can/skb.h
+++ b/include/linux/can/skb.h
@@ -34,7 +34,7 @@
 struct can_skb_priv {
 	int ifindex;
 	int skbcnt;
-	struct can_frame cf[0];
+	struct can_frame cf[];
 };
 
 static inline struct can_skb_priv *can_skb_prv(struct sk_buff *skb)
diff --git a/include/linux/cb710.h b/include/linux/cb710.h
index 60de3fedd3a7..405657a9a0d5 100644
--- a/include/linux/cb710.h
+++ b/include/linux/cb710.h
@@ -36,7 +36,7 @@ struct cb710_chip {
 	unsigned		slot_mask;
 	unsigned		slots;
 	spinlock_t		irq_lock;
-	struct cb710_slot	slot[0];
+	struct cb710_slot	slot[];
 };
 
 /* NOTE: cb710_chip.slots is modified only during device init/exit and
diff --git a/include/linux/ceph/libceph.h b/include/linux/ceph/libceph.h
index 2247e71beb83..e5ed1c541e7f 100644
--- a/include/linux/ceph/libceph.h
+++ b/include/linux/ceph/libceph.h
@@ -52,8 +52,7 @@ struct ceph_options {
 	unsigned long osd_idle_ttl;		/* jiffies */
 	unsigned long osd_keepalive_timeout;	/* jiffies */
 	unsigned long osd_request_timeout;	/* jiffies */
-
-	u32 osd_req_flags;  /* CEPH_OSD_FLAG_*, applied to each OSD request */
+	u32 read_from_replica;  /* CEPH_OSD_FLAG_BALANCE/LOCALIZE_READS */
 
 	/*
 	 * any type that can't be simply compared or doesn't need
@@ -76,6 +75,7 @@ struct ceph_options {
 #define CEPH_OSD_KEEPALIVE_DEFAULT	msecs_to_jiffies(5 * 1000)
 #define CEPH_OSD_IDLE_TTL_DEFAULT	msecs_to_jiffies(60 * 1000)
 #define CEPH_OSD_REQUEST_TIMEOUT_DEFAULT 0  /* no timeout */
+#define CEPH_READ_FROM_REPLICA_DEFAULT	0  /* read from primary */
 
 #define CEPH_MONC_HUNT_INTERVAL		msecs_to_jiffies(3 * 1000)
 #define CEPH_MONC_PING_INTERVAL		msecs_to_jiffies(10 * 1000)
diff --git a/include/linux/compiler_types.h b/include/linux/compiler_types.h
index 21aed0981edf..e368384445b6 100644
--- a/include/linux/compiler_types.h
+++ b/include/linux/compiler_types.h
@@ -5,20 +5,20 @@
 #ifndef __ASSEMBLY__
 
 #ifdef __CHECKER__
-# define __user		__attribute__((noderef, address_space(1)))
 # define __kernel	__attribute__((address_space(0)))
+# define __user		__attribute__((noderef, address_space(__user)))
 # define __safe		__attribute__((safe))
 # define __force	__attribute__((force))
 # define __nocast	__attribute__((nocast))
-# define __iomem	__attribute__((noderef, address_space(2)))
+# define __iomem	__attribute__((noderef, address_space(__iomem)))
 # define __must_hold(x)	__attribute__((context(x,1,1)))
 # define __acquires(x)	__attribute__((context(x,0,1)))
 # define __releases(x)	__attribute__((context(x,1,0)))
 # define __acquire(x)	__context__(x,1)
 # define __release(x)	__context__(x,-1)
 # define __cond_lock(x,c)	((c) ? ({ __acquire(x); 1; }) : 0)
-# define __percpu	__attribute__((noderef, address_space(3)))
-# define __rcu		__attribute__((noderef, address_space(4)))
+# define __percpu	__attribute__((noderef, address_space(__percpu)))
+# define __rcu		__attribute__((noderef, address_space(__rcu)))
 # define __private	__attribute__((noderef))
 extern void __chk_user_ptr(const volatile void __user *);
 extern void __chk_io_ptr(const volatile void __iomem *);
diff --git a/include/linux/dma-fence.h b/include/linux/dma-fence.h
index 3347c54f3a87..09e23adb351d 100644
--- a/include/linux/dma-fence.h
+++ b/include/linux/dma-fence.h
@@ -357,6 +357,19 @@ dma_fence_get_rcu_safe(struct dma_fence __rcu **fencep)
 	} while (1);
 }
 
+#ifdef CONFIG_LOCKDEP
+bool dma_fence_begin_signalling(void);
+void dma_fence_end_signalling(bool cookie);
+void __dma_fence_might_wait(void);
+#else
+static inline bool dma_fence_begin_signalling(void)
+{
+	return true;
+}
+static inline void dma_fence_end_signalling(bool cookie) {}
+static inline void __dma_fence_might_wait(void) {}
+#endif
+
 int dma_fence_signal(struct dma_fence *fence);
 int dma_fence_signal_locked(struct dma_fence *fence);
 signed long dma_fence_default_wait(struct dma_fence *fence,
diff --git a/include/linux/dmaengine.h b/include/linux/dmaengine.h
index 328e3aca7f51..abd8cffdf202 100644
--- a/include/linux/dmaengine.h
+++ b/include/linux/dmaengine.h
@@ -155,7 +155,7 @@ struct dma_interleaved_template {
 	bool dst_sgl;
 	size_t numf;
 	size_t frame_size;
-	struct data_chunk sgl[0];
+	struct data_chunk sgl[];
 };
 
 /**
@@ -549,7 +549,7 @@ struct dmaengine_unmap_data {
 	struct device *dev;
 	struct kref kref;
 	size_t len;
-	dma_addr_t addr[0];
+	dma_addr_t addr[];
 };
 
 struct dma_async_tx_descriptor;
diff --git a/include/linux/fb.h b/include/linux/fb.h
index 3b4b2f0c6994..2b530e6d86e4 100644
--- a/include/linux/fb.h
+++ b/include/linux/fb.h
@@ -506,8 +506,9 @@ struct fb_info {
 };
 
 static inline struct apertures_struct *alloc_apertures(unsigned int max_num) {
-	struct apertures_struct *a = kzalloc(sizeof(struct apertures_struct)
-			+ max_num * sizeof(struct aperture), GFP_KERNEL);
+	struct apertures_struct *a;
+
+	a = kzalloc(struct_size(a, ranges, max_num), GFP_KERNEL);
 	if (!a)
 		return NULL;
 	a->count = max_num;
diff --git a/include/linux/fs.h b/include/linux/fs.h
index 6c4ab4dc1cd7..3f881a892ea7 100644
--- a/include/linux/fs.h
+++ b/include/linux/fs.h
@@ -2592,7 +2592,6 @@ extern void bdput(struct block_device *);
 extern void invalidate_bdev(struct block_device *);
 extern void iterate_bdevs(void (*)(struct block_device *, void *), void *);
 extern int sync_blockdev(struct block_device *bdev);
-extern void kill_bdev(struct block_device *);
 extern struct super_block *freeze_bdev(struct block_device *);
 extern void emergency_thaw_all(void);
 extern void emergency_thaw_bdev(struct super_block *sb);
@@ -2608,7 +2607,6 @@ static inline bool sb_is_blkdev_sb(struct super_block *sb)
 #else
 static inline void bd_forget(struct inode *inode) {}
 static inline int sync_blockdev(struct block_device *bdev) { return 0; }
-static inline void kill_bdev(struct block_device *bdev) {}
 static inline void invalidate_bdev(struct block_device *bdev) {}
 
 static inline struct super_block *freeze_bdev(struct block_device *sb)
diff --git a/include/linux/fscache-cache.h b/include/linux/fscache-cache.h
index ce0b5fbf239d..3f0b19dcfae7 100644
--- a/include/linux/fscache-cache.h
+++ b/include/linux/fscache-cache.h
@@ -46,7 +46,7 @@ struct fscache_cache_tag {
 	unsigned long		flags;
 #define FSCACHE_TAG_RESERVED	0		/* T if tag is reserved for a cache */
 	atomic_t		usage;
-	char			name[0];	/* tag name */
+	char			name[];	/* tag name */
 };
 
 /*
diff --git a/include/linux/hdmi.h b/include/linux/hdmi.h
index 50c31f1a0a2d..9850d59d6f1c 100644
--- a/include/linux/hdmi.h
+++ b/include/linux/hdmi.h
@@ -57,6 +57,7 @@ enum hdmi_infoframe_type {
 #define HDMI_SPD_INFOFRAME_SIZE    25
 #define HDMI_AUDIO_INFOFRAME_SIZE  10
 #define HDMI_DRM_INFOFRAME_SIZE    26
+#define HDMI_VENDOR_INFOFRAME_SIZE  4
 
 #define HDMI_INFOFRAME_SIZE(type)	\
 	(HDMI_INFOFRAME_HEADER_SIZE + HDMI_ ## type ## _INFOFRAME_SIZE)
diff --git a/include/linux/i2c.h b/include/linux/i2c.h
index c10617bb980a..b8b8963f8bb9 100644
--- a/include/linux/i2c.h
+++ b/include/linux/i2c.h
@@ -408,7 +408,7 @@ static inline bool i2c_detect_slave_mode(struct device *dev) { return false; }
  * that are present.  This information is used to grow the driver model tree.
  * For mainboards this is done statically using i2c_register_board_info();
  * bus numbers identify adapters that aren't yet available.  For add-on boards,
- * i2c_new_device() does this dynamically with the adapter already known.
+ * i2c_new_client_device() does this dynamically with the adapter already known.
  */
 struct i2c_board_info {
 	char		type[I2C_NAME_SIZE];
@@ -439,14 +439,12 @@ struct i2c_board_info {
 
 
 #if IS_ENABLED(CONFIG_I2C)
-/* Add-on boards should register/unregister their devices; e.g. a board
+/*
+ * Add-on boards should register/unregister their devices; e.g. a board
  * with integrated I2C, a config eeprom, sensors, and a codec that's
  * used in conjunction with the primary hardware.
  */
 struct i2c_client *
-i2c_new_device(struct i2c_adapter *adap, struct i2c_board_info const *info);
-
-struct i2c_client *
 i2c_new_client_device(struct i2c_adapter *adap, struct i2c_board_info const *info);
 
 /* If you don't know the exact address of an I2C device, use this variant
diff --git a/include/linux/jbd2.h b/include/linux/jbd2.h
index f613d8529863..d56128df2aff 100644
--- a/include/linux/jbd2.h
+++ b/include/linux/jbd2.h
@@ -766,6 +766,11 @@ struct journal_s
 	int			j_errno;
 
 	/**
+	 * @j_abort_mutex: Lock the whole aborting procedure.
+	 */
+	struct mutex		j_abort_mutex;
+
+	/**
 	 * @j_sb_buffer: The first part of the superblock buffer.
 	 */
 	struct buffer_head	*j_sb_buffer;
@@ -1247,7 +1252,6 @@ JBD2_FEATURE_INCOMPAT_FUNCS(csum3,		CSUM_V3)
 #define JBD2_ABORT_ON_SYNCDATA_ERR	0x040	/* Abort the journal on file
 						 * data write error in ordered
 						 * mode */
-#define JBD2_REC_ERR	0x080	/* The errno in the sb has been recorded */
 
 /*
  * Function declarations for the journaling transaction and buffer
diff --git a/include/linux/kexec.h b/include/linux/kexec.h
index 1776eb2e43a4..ea67910ae6b7 100644
--- a/include/linux/kexec.h
+++ b/include/linux/kexec.h
@@ -208,7 +208,7 @@ struct crash_mem_range {
 struct crash_mem {
 	unsigned int max_nr_ranges;
 	unsigned int nr_ranges;
-	struct crash_mem_range ranges[0];
+	struct crash_mem_range ranges[];
 };
 
 extern int crash_exclude_mem_range(struct crash_mem *mem,
diff --git a/include/linux/kprobes.h b/include/linux/kprobes.h
index 594265bfd390..6adf90f248d7 100644
--- a/include/linux/kprobes.h
+++ b/include/linux/kprobes.h
@@ -161,7 +161,7 @@ struct kretprobe_instance {
 	kprobe_opcode_t *ret_addr;
 	struct task_struct *task;
 	void *fp;
-	char data[0];
+	char data[];
 };
 
 struct kretprobe_blackpoint {
@@ -350,6 +350,10 @@ static inline struct kprobe_ctlblk *get_kprobe_ctlblk(void)
 	return this_cpu_ptr(&kprobe_ctlblk);
 }
 
+extern struct kprobe kprobe_busy;
+void kprobe_busy_begin(void);
+void kprobe_busy_end(void);
+
 kprobe_opcode_t *kprobe_lookup_name(const char *name, unsigned int offset);
 int register_kprobe(struct kprobe *p);
 void unregister_kprobe(struct kprobe *p);
diff --git a/include/linux/kvm_host.h b/include/linux/kvm_host.h
index 62ec926c78a0..d564855243d8 100644
--- a/include/linux/kvm_host.h
+++ b/include/linux/kvm_host.h
@@ -409,7 +409,7 @@ struct kvm_irq_routing_table {
 	 * Array indexed by gsi. Each entry contains list of irq chips
 	 * the gsi is connected to.
 	 */
-	struct hlist_head map[0];
+	struct hlist_head map[];
 };
 #endif
 
diff --git a/include/linux/libata.h b/include/linux/libata.h
index af832852e620..e7e5256817dc 100644
--- a/include/linux/libata.h
+++ b/include/linux/libata.h
@@ -22,6 +22,7 @@
 #include <linux/acpi.h>
 #include <linux/cdrom.h>
 #include <linux/sched.h>
+#include <linux/async.h>
 
 /*
  * Define if arch has non-standard setup.  This is a _PCI_ standard
@@ -609,7 +610,7 @@ struct ata_host {
 	struct task_struct	*eh_owner;
 
 	struct ata_port		*simplex_claimed;	/* channel owning the DMA */
-	struct ata_port		*ports[0];
+	struct ata_port		*ports[];
 };
 
 struct ata_queued_cmd {
@@ -872,6 +873,8 @@ struct ata_port {
 	struct timer_list	fastdrain_timer;
 	unsigned long		fastdrain_cnt;
 
+	async_cookie_t		cookie;
+
 	int			em_message_type;
 	void			*private_data;
 
@@ -1092,7 +1095,11 @@ extern int ata_scsi_ioctl(struct scsi_device *dev, unsigned int cmd,
 #define ATA_SCSI_COMPAT_IOCTL /* empty */
 #endif
 extern int ata_scsi_queuecmd(struct Scsi_Host *h, struct scsi_cmnd *cmd);
+#if IS_ENABLED(CONFIG_ATA)
 bool ata_scsi_dma_need_drain(struct request *rq);
+#else
+#define ata_scsi_dma_need_drain NULL
+#endif
 extern int ata_sas_scsi_ioctl(struct ata_port *ap, struct scsi_device *dev,
 			    unsigned int cmd, void __user *arg);
 extern bool ata_link_online(struct ata_link *link);
diff --git a/include/linux/of_graph.h b/include/linux/of_graph.h
index 01038a6aade0..4d7756087b6b 100644
--- a/include/linux/of_graph.h
+++ b/include/linux/of_graph.h
@@ -38,6 +38,7 @@ struct of_endpoint {
 	     child = of_graph_get_next_endpoint(parent, child))
 
 #ifdef CONFIG_OF
+bool of_graph_is_present(const struct device_node *node);
 int of_graph_parse_endpoint(const struct device_node *node,
 				struct of_endpoint *endpoint);
 int of_graph_get_endpoint_count(const struct device_node *np);
@@ -56,6 +57,11 @@ struct device_node *of_graph_get_remote_node(const struct device_node *node,
 					     u32 port, u32 endpoint);
 #else
 
+static inline bool of_graph_is_present(const struct device_node *node)
+{
+	return false;
+}
+
 static inline int of_graph_parse_endpoint(const struct device_node *node,
 					struct of_endpoint *endpoint)
 {
diff --git a/include/linux/overflow.h b/include/linux/overflow.h
index 659045046468..93fcef105061 100644
--- a/include/linux/overflow.h
+++ b/include/linux/overflow.h
@@ -304,16 +304,33 @@ static inline __must_check size_t __ab_c_size(size_t a, size_t b, size_t c)
  * struct_size() - Calculate size of structure with trailing array.
  * @p: Pointer to the structure.
  * @member: Name of the array member.
- * @n: Number of elements in the array.
+ * @count: Number of elements in the array.
  *
  * Calculates size of memory needed for structure @p followed by an
- * array of @n @member elements.
+ * array of @count number of @member elements.
  *
  * Return: number of bytes needed or SIZE_MAX on overflow.
  */
-#define struct_size(p, member, n)					\
-	__ab_c_size(n,							\
+#define struct_size(p, member, count)					\
+	__ab_c_size(count,						\
 		    sizeof(*(p)->member) + __must_be_array((p)->member),\
 		    sizeof(*(p)))
 
+/**
+ * flex_array_size() - Calculate size of a flexible array member
+ *                     within an enclosing structure.
+ *
+ * @p: Pointer to the structure.
+ * @member: Name of the flexible array member.
+ * @count: Number of elements in the array.
+ *
+ * Calculates size of a flexible array of @count number of @member
+ * elements, at the end of structure @p.
+ *
+ * Return: number of bytes needed or SIZE_MAX on overflow.
+ */
+#define flex_array_size(p, member, count)				\
+	array_size(count,						\
+		    sizeof(*(p)->member) + __must_be_array((p)->member))
+
 #endif /* __LINUX_OVERFLOW_H */
diff --git a/include/linux/pgtable.h b/include/linux/pgtable.h
index 32b6c52d41b9..56c1e8eb7bb0 100644
--- a/include/linux/pgtable.h
+++ b/include/linux/pgtable.h
@@ -249,6 +249,13 @@ static inline pte_t ptep_get_and_clear(struct mm_struct *mm,
 }
 #endif
 
+#ifndef __HAVE_ARCH_PTEP_GET
+static inline pte_t ptep_get(pte_t *ptep)
+{
+	return READ_ONCE(*ptep);
+}
+#endif
+
 #ifdef CONFIG_TRANSPARENT_HUGEPAGE
 #ifndef __HAVE_ARCH_PMDP_HUGE_GET_AND_CLEAR
 static inline pmd_t pmdp_huge_get_and_clear(struct mm_struct *mm,
diff --git a/include/linux/psp-sev.h b/include/linux/psp-sev.h
index 7fbc8679145c..49d155cd2dfe 100644
--- a/include/linux/psp-sev.h
+++ b/include/linux/psp-sev.h
@@ -597,7 +597,7 @@ int sev_guest_df_flush(int *error);
  */
 int sev_guest_decommission(struct sev_data_decommission *data, int *error);
 
-void *psp_copy_user_blob(u64 __user uaddr, u32 len);
+void *psp_copy_user_blob(u64 uaddr, u32 len);
 
 #else	/* !CONFIG_CRYPTO_DEV_SP_PSP */
 
diff --git a/include/linux/sctp.h b/include/linux/sctp.h
index 8ccd82105de8..76731230bbc5 100644
--- a/include/linux/sctp.h
+++ b/include/linux/sctp.h
@@ -221,7 +221,7 @@ struct sctp_datahdr {
 	__be16 stream;
 	__be16 ssn;
 	__u32 ppid;
-	__u8  payload[0];
+	__u8  payload[];
 };
 
 struct sctp_data_chunk {
@@ -269,7 +269,7 @@ struct sctp_inithdr {
 	__be16 num_outbound_streams;
 	__be16 num_inbound_streams;
 	__be32 initial_tsn;
-	__u8  params[0];
+	__u8  params[];
 };
 
 struct sctp_init_chunk {
@@ -299,13 +299,13 @@ struct sctp_cookie_preserve_param {
 /* Section 3.3.2.1 Host Name Address (11) */
 struct sctp_hostname_param {
 	struct sctp_paramhdr param_hdr;
-	uint8_t hostname[0];
+	uint8_t hostname[];
 };
 
 /* Section 3.3.2.1 Supported Address Types (12) */
 struct sctp_supported_addrs_param {
 	struct sctp_paramhdr param_hdr;
-	__be16 types[0];
+	__be16 types[];
 };
 
 /* ADDIP Section 3.2.6 Adaptation Layer Indication */
@@ -317,25 +317,25 @@ struct sctp_adaptation_ind_param {
 /* ADDIP Section 4.2.7 Supported Extensions Parameter */
 struct sctp_supported_ext_param {
 	struct sctp_paramhdr param_hdr;
-	__u8 chunks[0];
+	__u8 chunks[];
 };
 
 /* AUTH Section 3.1 Random */
 struct sctp_random_param {
 	struct sctp_paramhdr param_hdr;
-	__u8 random_val[0];
+	__u8 random_val[];
 };
 
 /* AUTH Section 3.2 Chunk List */
 struct sctp_chunks_param {
 	struct sctp_paramhdr param_hdr;
-	__u8 chunks[0];
+	__u8 chunks[];
 };
 
 /* AUTH Section 3.3 HMAC Algorithm */
 struct sctp_hmac_algo_param {
 	struct sctp_paramhdr param_hdr;
-	__be16 hmac_ids[0];
+	__be16 hmac_ids[];
 };
 
 /* RFC 2960.  Section 3.3.3 Initiation Acknowledgement (INIT ACK) (2):
@@ -350,7 +350,7 @@ struct sctp_initack_chunk {
 /* Section 3.3.3.1 State Cookie (7) */
 struct sctp_cookie_param {
 	struct sctp_paramhdr p;
-	__u8 body[0];
+	__u8 body[];
 };
 
 /* Section 3.3.3.1 Unrecognized Parameters (8) */
@@ -384,7 +384,7 @@ struct sctp_sackhdr {
 	__be32 a_rwnd;
 	__be16 num_gap_ack_blocks;
 	__be16 num_dup_tsns;
-	union sctp_sack_variable variable[0];
+	union sctp_sack_variable variable[];
 };
 
 struct sctp_sack_chunk {
@@ -436,7 +436,7 @@ struct sctp_shutdown_chunk {
 struct sctp_errhdr {
 	__be16 cause;
 	__be16 length;
-	__u8  variable[0];
+	__u8  variable[];
 };
 
 struct sctp_operr_chunk {
@@ -594,7 +594,7 @@ struct sctp_fwdtsn_skip {
 
 struct sctp_fwdtsn_hdr {
 	__be32 new_cum_tsn;
-	struct sctp_fwdtsn_skip skip[0];
+	struct sctp_fwdtsn_skip skip[];
 };
 
 struct sctp_fwdtsn_chunk {
@@ -611,7 +611,7 @@ struct sctp_ifwdtsn_skip {
 
 struct sctp_ifwdtsn_hdr {
 	__be32 new_cum_tsn;
-	struct sctp_ifwdtsn_skip skip[0];
+	struct sctp_ifwdtsn_skip skip[];
 };
 
 struct sctp_ifwdtsn_chunk {
@@ -658,7 +658,7 @@ struct sctp_addip_param {
 
 struct sctp_addiphdr {
 	__be32	serial;
-	__u8	params[0];
+	__u8	params[];
 };
 
 struct sctp_addip_chunk {
@@ -718,7 +718,7 @@ struct sctp_addip_chunk {
 struct sctp_authhdr {
 	__be16 shkey_id;
 	__be16 hmac_id;
-	__u8   hmac[0];
+	__u8   hmac[];
 };
 
 struct sctp_auth_chunk {
@@ -733,7 +733,7 @@ struct sctp_infox {
 
 struct sctp_reconf_chunk {
 	struct sctp_chunkhdr chunk_hdr;
-	__u8 params[0];
+	__u8 params[];
 };
 
 struct sctp_strreset_outreq {
@@ -741,13 +741,13 @@ struct sctp_strreset_outreq {
 	__be32 request_seq;
 	__be32 response_seq;
 	__be32 send_reset_at_tsn;
-	__be16 list_of_streams[0];
+	__be16 list_of_streams[];
 };
 
 struct sctp_strreset_inreq {
 	struct sctp_paramhdr param_hdr;
 	__be32 request_seq;
-	__be16 list_of_streams[0];
+	__be16 list_of_streams[];
 };
 
 struct sctp_strreset_tsnreq {
diff --git a/include/linux/tifm.h b/include/linux/tifm.h
index 299cbb8c63bb..44073d06710f 100644
--- a/include/linux/tifm.h
+++ b/include/linux/tifm.h
@@ -124,7 +124,7 @@ struct tifm_adapter {
 	int                 (*has_ms_pif)(struct tifm_adapter *fm,
 					  struct tifm_dev *sock);
 
-	struct tifm_dev     *sockets[0];
+	struct tifm_dev     *sockets[];
 };
 
 struct tifm_adapter *tifm_alloc_adapter(unsigned int num_sockets,
diff --git a/include/linux/uaccess.h b/include/linux/uaccess.h
index 7bcadca22100..0a76ddc07d59 100644
--- a/include/linux/uaccess.h
+++ b/include/linux/uaccess.h
@@ -301,13 +301,14 @@ copy_struct_from_user(void *dst, size_t ksize, const void __user *src,
 	return 0;
 }
 
-bool probe_kernel_read_allowed(const void *unsafe_src, size_t size);
+bool copy_from_kernel_nofault_allowed(const void *unsafe_src, size_t size);
 
-extern long probe_kernel_read(void *dst, const void *src, size_t size);
-extern long probe_user_read(void *dst, const void __user *src, size_t size);
+long copy_from_kernel_nofault(void *dst, const void *src, size_t size);
+long notrace copy_to_kernel_nofault(void *dst, const void *src, size_t size);
 
-extern long notrace probe_kernel_write(void *dst, const void *src, size_t size);
-extern long notrace probe_user_write(void __user *dst, const void *src, size_t size);
+long copy_from_user_nofault(void *dst, const void __user *src, size_t size);
+long notrace copy_to_user_nofault(void __user *dst, const void *src,
+		size_t size);
 
 long strncpy_from_kernel_nofault(char *dst, const void *unsafe_addr,
 		long count);
@@ -317,14 +318,16 @@ long strncpy_from_user_nofault(char *dst, const void __user *unsafe_addr,
 long strnlen_user_nofault(const void __user *unsafe_addr, long count);
 
 /**
- * probe_kernel_address(): safely attempt to read from a location
- * @addr: address to read from
- * @retval: read into this variable
+ * get_kernel_nofault(): safely attempt to read from a location
+ * @val: read into this variable
+ * @ptr: address to read from
  *
  * Returns 0 on success, or -EFAULT.
  */
-#define probe_kernel_address(addr, retval)		\
-	probe_kernel_read(&retval, addr, sizeof(retval))
+#define get_kernel_nofault(val, ptr) ({				\
+	const typeof(val) *__gk_ptr = (ptr);			\
+	copy_from_kernel_nofault(&(val), __gk_ptr, sizeof(val));\
+})
 
 #ifndef user_access_begin
 #define user_access_begin(ptr,len) access_ok(ptr, len)