6 files changed, 79 insertions, 39 deletions
diff --git a/tools/include/uapi/linux/in.h b/tools/include/uapi/linux/in.h
index 14168225cecd..07a4cb149305 100644
--- a/tools/include/uapi/linux/in.h
+++ b/tools/include/uapi/linux/in.h
@@ -20,6 +20,7 @@
 #define _UAPI_LINUX_IN_H
 
 #include <linux/types.h>
+#include <linux/stddef.h>
 #include <linux/libc-compat.h>
 #include <linux/socket.h>
 
@@ -68,6 +69,8 @@ enum {
 #define IPPROTO_PIM		IPPROTO_PIM
   IPPROTO_COMP = 108,		/* Compression Header Protocol		*/
 #define IPPROTO_COMP		IPPROTO_COMP
+  IPPROTO_L2TP = 115,		/* Layer 2 Tunnelling Protocol		*/
+#define IPPROTO_L2TP		IPPROTO_L2TP
   IPPROTO_SCTP = 132,		/* Stream Control Transport Protocol	*/
 #define IPPROTO_SCTP		IPPROTO_SCTP
   IPPROTO_UDPLITE = 136,	/* UDP-Lite (RFC 3828)			*/
@@ -188,21 +191,13 @@ struct ip_mreq_source {
 };
 
 struct ip_msfilter {
+	__be32		imsf_multiaddr;
+	__be32		imsf_interface;
+	__u32		imsf_fmode;
+	__u32		imsf_numsrc;
 	union {
-		struct {
-			__be32		imsf_multiaddr_aux;
-			__be32		imsf_interface_aux;
-			__u32		imsf_fmode_aux;
-			__u32		imsf_numsrc_aux;
-			__be32		imsf_slist[1];
-		};
-		struct {
-			__be32		imsf_multiaddr;
-			__be32		imsf_interface;
-			__u32		imsf_fmode;
-			__u32		imsf_numsrc;
-			__be32		imsf_slist_flex[];
-		};
+		__be32		imsf_slist[1];
+		__DECLARE_FLEX_ARRAY(__be32, imsf_slist_flex);
 	};
 };
 
diff --git a/tools/include/uapi/linux/kvm.h b/tools/include/uapi/linux/kvm.h
index eed0315a77a6..0d5d4419139a 100644
--- a/tools/include/uapi/linux/kvm.h
+++ b/tools/include/uapi/linux/kvm.h
@@ -1177,6 +1177,7 @@ struct kvm_ppc_resize_hpt {
 #define KVM_CAP_VM_DISABLE_NX_HUGE_PAGES 220
 #define KVM_CAP_S390_ZPCI_OP 221
 #define KVM_CAP_S390_CPU_TOPOLOGY 222
+#define KVM_CAP_DIRTY_LOG_RING_ACQ_REL 223
 
 #ifdef KVM_CAP_IRQ_ROUTING
 
diff --git a/tools/include/uapi/linux/perf_event.h b/tools/include/uapi/linux/perf_event.h
index ea6defacc1a7..ccb7f5dad59b 100644
--- a/tools/include/uapi/linux/perf_event.h
+++ b/tools/include/uapi/linux/perf_event.h
@@ -164,8 +164,6 @@ enum perf_event_sample_format {
 	PERF_SAMPLE_WEIGHT_STRUCT		= 1U << 24,
 
 	PERF_SAMPLE_MAX = 1U << 25,		/* non-ABI */
-
-	__PERF_SAMPLE_CALLCHAIN_EARLY		= 1ULL << 63, /* non-ABI; internal use */
 };
 
 #define PERF_SAMPLE_WEIGHT_TYPE	(PERF_SAMPLE_WEIGHT | PERF_SAMPLE_WEIGHT_STRUCT)
@@ -263,6 +261,17 @@ enum {
 	PERF_BR_MAX,
 };
 
+/*
+ * Common branch speculation outcome classification
+ */
+enum {
+	PERF_BR_SPEC_NA			= 0,	/* Not available */
+	PERF_BR_SPEC_WRONG_PATH		= 1,	/* Speculative but on wrong path */
+	PERF_BR_NON_SPEC_CORRECT_PATH	= 2,	/* Non-speculative but on correct path */
+	PERF_BR_SPEC_CORRECT_PATH	= 3,	/* Speculative and on correct path */
+	PERF_BR_SPEC_MAX,
+};
+
 enum {
 	PERF_BR_NEW_FAULT_ALGN		= 0,    /* Alignment fault */
 	PERF_BR_NEW_FAULT_DATA		= 1,    /* Data fault */
@@ -282,11 +291,11 @@ enum {
 	PERF_BR_PRIV_HV		= 3,
 };
 
-#define PERF_BR_ARM64_FIQ              PERF_BR_NEW_ARCH_1
-#define PERF_BR_ARM64_DEBUG_HALT       PERF_BR_NEW_ARCH_2
-#define PERF_BR_ARM64_DEBUG_EXIT       PERF_BR_NEW_ARCH_3
-#define PERF_BR_ARM64_DEBUG_INST       PERF_BR_NEW_ARCH_4
-#define PERF_BR_ARM64_DEBUG_DATA       PERF_BR_NEW_ARCH_5
+#define PERF_BR_ARM64_FIQ		PERF_BR_NEW_ARCH_1
+#define PERF_BR_ARM64_DEBUG_HALT	PERF_BR_NEW_ARCH_2
+#define PERF_BR_ARM64_DEBUG_EXIT	PERF_BR_NEW_ARCH_3
+#define PERF_BR_ARM64_DEBUG_INST	PERF_BR_NEW_ARCH_4
+#define PERF_BR_ARM64_DEBUG_DATA	PERF_BR_NEW_ARCH_5
 
 #define PERF_SAMPLE_BRANCH_PLM_ALL \
 	(PERF_SAMPLE_BRANCH_USER|\
@@ -1397,6 +1406,7 @@ union perf_mem_data_src {
  *     abort: aborting a hardware transaction
  *    cycles: cycles from last branch (or 0 if not supported)
  *      type: branch type
+ *      spec: branch speculation info (or 0 if not supported)
  */
 struct perf_branch_entry {
 	__u64	from;
@@ -1407,9 +1417,10 @@ struct perf_branch_entry {
 		abort:1,    /* transaction abort */
 		cycles:16,  /* cycle count to last branch */
 		type:4,     /* branch type */
+		spec:2,     /* branch speculation info */
 		new_type:4, /* additional branch type */
 		priv:3,     /* privilege level */
-		reserved:33;
+		reserved:31;
 };
 
 union perf_sample_weight {
diff --git a/tools/include/uapi/linux/stat.h b/tools/include/uapi/linux/stat.h
index 1500a0f58041..7cab2c65d3d7 100644
--- a/tools/include/uapi/linux/stat.h
+++ b/tools/include/uapi/linux/stat.h
@@ -124,7 +124,8 @@ struct statx {
 	__u32	stx_dev_minor;
 	/* 0x90 */
 	__u64	stx_mnt_id;
-	__u64	__spare2;
+	__u32	stx_dio_mem_align;	/* Memory buffer alignment for direct I/O */
+	__u32	stx_dio_offset_align;	/* File offset alignment for direct I/O */
 	/* 0xa0 */
 	__u64	__spare3[12];	/* Spare space for future expansion */
 	/* 0x100 */
@@ -152,6 +153,7 @@ struct statx {
 #define STATX_BASIC_STATS	0x000007ffU	/* The stuff in the normal stat struct */
 #define STATX_BTIME		0x00000800U	/* Want/got stx_btime */
 #define STATX_MNT_ID		0x00001000U	/* Got stx_mnt_id */
+#define STATX_DIOALIGN		0x00002000U	/* Want/got direct I/O alignment info */
 
 #define STATX__RESERVED		0x80000000U	/* Reserved for future struct statx expansion */
 
diff --git a/tools/include/uapi/linux/stddef.h b/tools/include/uapi/linux/stddef.h
new file mode 100644
index 000000000000..bb6ea517efb5
--- /dev/null
+++ b/tools/include/uapi/linux/stddef.h
@@ -0,0 +1,47 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
+#ifndef _LINUX_STDDEF_H
+#define _LINUX_STDDEF_H
+
+
+
+#ifndef __always_inline
+#define __always_inline __inline__
+#endif
+
+/**
+ * __struct_group() - Create a mirrored named and anonyomous struct
+ *
+ * @TAG: The tag name for the named sub-struct (usually empty)
+ * @NAME: The identifier name of the mirrored sub-struct
+ * @ATTRS: Any struct attributes (usually empty)
+ * @MEMBERS: The member declarations for the mirrored structs
+ *
+ * Used to create an anonymous union of two structs with identical layout
+ * and size: one anonymous and one named. The former's members can be used
+ * normally without sub-struct naming, and the latter can be used to
+ * reason about the start, end, and size of the group of struct members.
+ * The named struct can also be explicitly tagged for layer reuse, as well
+ * as both having struct attributes appended.
+ */
+#define __struct_group(TAG, NAME, ATTRS, MEMBERS...) \
+	union { \
+		struct { MEMBERS } ATTRS; \
+		struct TAG { MEMBERS } ATTRS NAME; \
+	}
+
+/**
+ * __DECLARE_FLEX_ARRAY() - Declare a flexible array usable in a union
+ *
+ * @TYPE: The type of each flexible array element
+ * @NAME: The name of the flexible array member
+ *
+ * In order to have a flexible array member in a union or alone in a
+ * struct, it needs to be wrapped in an anonymous struct with at least 1
+ * named member, but that member can be empty.
+ */
+#define __DECLARE_FLEX_ARRAY(TYPE, NAME)	\
+	struct { \
+		struct { } __empty_ ## NAME; \
+		TYPE NAME[]; \
+	}
+#endif
diff --git a/tools/include/uapi/sound/asound.h b/tools/include/uapi/sound/asound.h
index 3974a2a911cc..de6810e94abe 100644
--- a/tools/include/uapi/sound/asound.h
+++ b/tools/include/uapi/sound/asound.h
@@ -3,22 +3,6 @@
  *  Advanced Linux Sound Architecture - ALSA - Driver
  *  Copyright (c) 1994-2003 by Jaroslav Kysela <perex@perex.cz>,
  *                             Abramo Bagnara <abramo@alsa-project.org>
- *
- *
- *   This program is free software; you can redistribute it and/or modify
- *   it under the terms of the GNU General Public License as published by
- *   the Free Software Foundation; either version 2 of the License, or
- *   (at your option) any later version.
- *
- *   This program is distributed in the hope that it will be useful,
- *   but WITHOUT ANY WARRANTY; without even the implied warranty of
- *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- *   GNU General Public License for more details.
- *
- *   You should have received a copy of the GNU General Public License
- *   along with this program; if not, write to the Free Software
- *   Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307 USA
- *
  */
 
 #ifndef _UAPI__SOUND_ASOUND_H