Merge tag 'v3.15' into next

Linux 3.15

59 files changed, 1595 insertions, 265 deletions

diff --git a/include/uapi/asm-generic/fcntl.h b/include/uapi/asm-generic/fcntl.h
index 95e46c8e05f9..7543b3e51331 100644
--- a/include/uapi/asm-generic/fcntl.h
+++ b/include/uapi/asm-generic/fcntl.h
@@ -132,6 +132,22 @@
 #define F_GETOWNER_UIDS	17
 #endif
 
+/*
+ * Open File Description Locks
+ *
+ * Usually record locks held by a process are released on *any* close and are
+ * not inherited across a fork().
+ *
+ * These cmd values will set locks that conflict with process-associated
+ * record  locks, but are "owned" by the open file description, not the
+ * process. This means that they are inherited across fork() like BSD (flock)
+ * locks, and they are only released automatically when the last reference to
+ * the the open file against which they were acquired is put.
+ */
+#define F_OFD_GETLK	36
+#define F_OFD_SETLK	37
+#define F_OFD_SETLKW	38
+
 #define F_OWNER_TID	0
 #define F_OWNER_PID	1
 #define F_OWNER_PGRP	2
@@ -186,8 +202,6 @@ struct flock {
 };
 #endif
 
-#ifndef CONFIG_64BIT
-
 #ifndef HAVE_ARCH_STRUCT_FLOCK64
 #ifndef __ARCH_FLOCK64_PAD
 #define __ARCH_FLOCK64_PAD
@@ -202,6 +216,5 @@ struct flock64 {
 	__ARCH_FLOCK64_PAD
 };
 #endif
-#endif /* !CONFIG_64BIT */
 
 #endif /* _ASM_GENERIC_FCNTL_H */
diff --git a/include/uapi/asm-generic/mman-common.h b/include/uapi/asm-generic/mman-common.h
index 4164529a94f9..ddc3b36f1046 100644
--- a/include/uapi/asm-generic/mman-common.h
+++ b/include/uapi/asm-generic/mman-common.h
@@ -50,7 +50,7 @@
 
 #define MADV_DONTDUMP   16		/* Explicity exclude from the core dump,
 					   overrides the coredump filter bits */
-#define MADV_DODUMP	17		/* Clear the MADV_NODUMP flag */
+#define MADV_DODUMP	17		/* Clear the MADV_DONTDUMP flag */
 
 /* compatibility flags */
 #define MAP_FILE	0
diff --git a/include/uapi/asm-generic/resource.h b/include/uapi/asm-generic/resource.h
index f863428796d5..c6d10af50123 100644
--- a/include/uapi/asm-generic/resource.h
+++ b/include/uapi/asm-generic/resource.h
@@ -57,12 +57,5 @@
 # define RLIM_INFINITY		(~0UL)
 #endif
 
-/*
- * RLIMIT_STACK default maximum - some architectures override it:
- */
-#ifndef _STK_LIM_MAX
-# define _STK_LIM_MAX		RLIM_INFINITY
-#endif
-
 
 #endif /* _UAPI_ASM_GENERIC_RESOURCE_H */
diff --git a/include/uapi/asm-generic/unistd.h b/include/uapi/asm-generic/unistd.h
index dde8041f40d2..333640608087 100644
--- a/include/uapi/asm-generic/unistd.h
+++ b/include/uapi/asm-generic/unistd.h
@@ -191,6 +191,7 @@ __SYSCALL(__NR_quotactl, sys_quotactl)
 
 /* fs/readdir.c */
 #define __NR_getdents64 61
+#define __ARCH_WANT_COMPAT_SYS_GETDENTS64
 __SC_COMP(__NR_getdents64, sys_getdents64, compat_sys_getdents64)
 
 /* fs/read_write.c */
@@ -696,9 +697,11 @@ __SYSCALL(__NR_finit_module, sys_finit_module)
 __SYSCALL(__NR_sched_setattr, sys_sched_setattr)
 #define __NR_sched_getattr 275
 __SYSCALL(__NR_sched_getattr, sys_sched_getattr)
+#define __NR_renameat2 276
+__SYSCALL(__NR_renameat2, sys_renameat2)
 
 #undef __NR_syscalls
-#define __NR_syscalls 276
+#define __NR_syscalls 277
 
 /*
  * All syscalls below here should go away really,
diff --git a/include/uapi/drm/drm.h b/include/uapi/drm/drm.h
index b06c8ed68707..9abbeb924cbb 100644
--- a/include/uapi/drm/drm.h
+++ b/include/uapi/drm/drm.h
@@ -619,6 +619,15 @@ struct drm_gem_open {
 #define  DRM_PRIME_CAP_EXPORT		0x2
 #define DRM_CAP_TIMESTAMP_MONOTONIC	0x6
 #define DRM_CAP_ASYNC_PAGE_FLIP		0x7
+/*
+ * The CURSOR_WIDTH and CURSOR_HEIGHT capabilities return a valid widthxheight
+ * combination for the hardware cursor. The intention is that a hardware
+ * agnostic userspace can query a cursor plane size to use.
+ *
+ * Note that the cross-driver contract is to merely return a valid size;
+ * drivers are free to attach another meaning on top, eg. i915 returns the
+ * maximum plane size.
+ */
 #define DRM_CAP_CURSOR_WIDTH		0x8
 #define DRM_CAP_CURSOR_HEIGHT		0x9
 
@@ -637,6 +646,14 @@ struct drm_get_cap {
  */
 #define DRM_CLIENT_CAP_STEREO_3D	1
 
+/**
+ * DRM_CLIENT_CAP_UNIVERSAL_PLANES
+ *
+ * If set to 1, the DRM core will expose all planes (overlay, primary, and
+ * cursor) to userspace.
+ */
+#define DRM_CLIENT_CAP_UNIVERSAL_PLANES  2
+
 /** DRM_IOCTL_SET_CLIENT_CAP ioctl argument type */
 struct drm_set_client_cap {
 	__u64 capability;
diff --git a/include/uapi/drm/msm_drm.h b/include/uapi/drm/msm_drm.h
index d3c62074016d..0664c31f010c 100644
--- a/include/uapi/drm/msm_drm.h
+++ b/include/uapi/drm/msm_drm.h
@@ -50,6 +50,7 @@ struct drm_msm_timespec {
 
 #define MSM_PARAM_GPU_ID     0x01
 #define MSM_PARAM_GMEM_SIZE  0x02
+#define MSM_PARAM_CHIP_ID    0x03
 
 struct drm_msm_param {
 	uint32_t pipe;           /* in, MSM_PIPE_x */
@@ -69,6 +70,12 @@ struct drm_msm_param {
 #define MSM_BO_WC            0x00020000
 #define MSM_BO_UNCACHED      0x00040000
 
+#define MSM_BO_FLAGS         (MSM_BO_SCANOUT | \
+                              MSM_BO_GPU_READONLY | \
+                              MSM_BO_CACHED | \
+                              MSM_BO_WC | \
+                              MSM_BO_UNCACHED)
+
 struct drm_msm_gem_new {
 	uint64_t size;           /* in */
 	uint32_t flags;          /* in, mask of MSM_BO_x */
@@ -85,6 +92,8 @@ struct drm_msm_gem_info {
 #define MSM_PREP_WRITE       0x02
 #define MSM_PREP_NOSYNC      0x04
 
+#define MSM_PREP_FLAGS       (MSM_PREP_READ | MSM_PREP_WRITE | MSM_PREP_NOSYNC)
+
 struct drm_msm_gem_cpu_prep {
 	uint32_t handle;         /* in */
 	uint32_t op;             /* in, mask of MSM_PREP_x */
@@ -152,6 +161,9 @@ struct drm_msm_gem_submit_cmd {
  */
 #define MSM_SUBMIT_BO_READ             0x0001
 #define MSM_SUBMIT_BO_WRITE            0x0002
+
+#define MSM_SUBMIT_BO_FLAGS            (MSM_SUBMIT_BO_READ | MSM_SUBMIT_BO_WRITE)
+
 struct drm_msm_gem_submit_bo {
 	uint32_t flags;          /* in, mask of MSM_SUBMIT_BO_x */
 	uint32_t handle;         /* in, GEM handle */
diff --git a/include/uapi/drm/radeon_drm.h b/include/uapi/drm/radeon_drm.h
index d9ea3a73afe2..aefa2f6afa3b 100644
--- a/include/uapi/drm/radeon_drm.h
+++ b/include/uapi/drm/radeon_drm.h
@@ -510,6 +510,7 @@ typedef struct {
 #define DRM_RADEON_GEM_GET_TILING	0x29
 #define DRM_RADEON_GEM_BUSY		0x2a
 #define DRM_RADEON_GEM_VA		0x2b
+#define DRM_RADEON_GEM_OP		0x2c
 
 #define DRM_IOCTL_RADEON_CP_INIT    DRM_IOW( DRM_COMMAND_BASE + DRM_RADEON_CP_INIT, drm_radeon_init_t)
 #define DRM_IOCTL_RADEON_CP_START   DRM_IO(  DRM_COMMAND_BASE + DRM_RADEON_CP_START)
@@ -552,6 +553,7 @@ typedef struct {
 #define DRM_IOCTL_RADEON_GEM_GET_TILING	DRM_IOWR(DRM_COMMAND_BASE + DRM_RADEON_GEM_GET_TILING, struct drm_radeon_gem_get_tiling)
 #define DRM_IOCTL_RADEON_GEM_BUSY	DRM_IOWR(DRM_COMMAND_BASE + DRM_RADEON_GEM_BUSY, struct drm_radeon_gem_busy)
 #define DRM_IOCTL_RADEON_GEM_VA		DRM_IOWR(DRM_COMMAND_BASE + DRM_RADEON_GEM_VA, struct drm_radeon_gem_va)
+#define DRM_IOCTL_RADEON_GEM_OP		DRM_IOWR(DRM_COMMAND_BASE + DRM_RADEON_GEM_OP, struct drm_radeon_gem_op)
 
 typedef struct drm_radeon_init {
 	enum {
@@ -884,6 +886,16 @@ struct drm_radeon_gem_pwrite {
 	uint64_t data_ptr;
 };
 
+/* Sets or returns a value associated with a buffer. */
+struct drm_radeon_gem_op {
+	uint32_t	handle; /* buffer */
+	uint32_t	op;     /* RADEON_GEM_OP_* */
+	uint64_t	value;  /* input or return value */
+};
+
+#define RADEON_GEM_OP_GET_INITIAL_DOMAIN	0
+#define RADEON_GEM_OP_SET_INITIAL_DOMAIN	1
+
 #define RADEON_VA_MAP			1
 #define RADEON_VA_UNMAP			2
 
@@ -919,6 +931,7 @@ struct drm_radeon_gem_va {
 #define RADEON_CS_RING_COMPUTE      1
 #define RADEON_CS_RING_DMA          2
 #define RADEON_CS_RING_UVD          3
+#define RADEON_CS_RING_VCE          4
 /* The third dword of RADEON_CHUNK_ID_FLAGS is a sint32 that sets the priority */
 /* 0 = normal, + = higher priority, - = lower priority */
 
@@ -987,6 +1000,13 @@ struct drm_radeon_cs {
 #define RADEON_INFO_SI_BACKEND_ENABLED_MASK	0x19
 /* max engine clock - needed for OpenCL */
 #define RADEON_INFO_MAX_SCLK		0x1a
+/* version of VCE firmware */
+#define RADEON_INFO_VCE_FW_VERSION	0x1b
+/* version of VCE feedback */
+#define RADEON_INFO_VCE_FB_VERSION	0x1c
+#define RADEON_INFO_NUM_BYTES_MOVED	0x1d
+#define RADEON_INFO_VRAM_USAGE		0x1e
+#define RADEON_INFO_GTT_USAGE		0x1f
 
 
 struct drm_radeon_info {
diff --git a/include/uapi/drm/tegra_drm.h b/include/uapi/drm/tegra_drm.h
index 5e1ab552cbed..b75482112428 100644
--- a/include/uapi/drm/tegra_drm.h
+++ b/include/uapi/drm/tegra_drm.h
@@ -1,17 +1,23 @@
 /*
  * Copyright (c) 2012-2013, NVIDIA CORPORATION.  All rights reserved.
  *
- * This program is free software; you can redistribute it and/or modify it
- * under the terms and conditions of the GNU General Public License,
- * version 2, as published by the Free Software Foundation.
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the "Software"),
+ * to deal in the Software without restriction, including without limitation
+ * the rights to use, copy, modify, merge, publish, distribute, sublicense,
+ * and/or sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following conditions:
  *
- * This program is distributed in the hope 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.
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
  *
- * You should have received a copy of the GNU General Public License
- * along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
+ * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR
+ * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
+ * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
+ * OTHER DEALINGS IN THE SOFTWARE.
  */
 
 #ifndef _UAPI_TEGRA_DRM_H_
@@ -114,7 +120,6 @@ struct drm_tegra_submit {
 	__u32 num_waitchks;
 	__u32 waitchk_mask;
 	__u32 timeout;
-	__u32 pad;
 	__u64 syncpts;
 	__u64 cmdbufs;
 	__u64 relocs;
diff --git a/include/uapi/drm/vmwgfx_drm.h b/include/uapi/drm/vmwgfx_drm.h
index 87792a5fee3b..4fc66f6b12ce 100644
--- a/include/uapi/drm/vmwgfx_drm.h
+++ b/include/uapi/drm/vmwgfx_drm.h
@@ -90,6 +90,15 @@
 #define DRM_VMW_PARAM_MAX_MOB_SIZE     10
 
 /**
+ * enum drm_vmw_handle_type - handle type for ref ioctls
+ *
+ */
+enum drm_vmw_handle_type {
+	DRM_VMW_HANDLE_LEGACY = 0,
+	DRM_VMW_HANDLE_PRIME = 1
+};
+
+/**
  * struct drm_vmw_getparam_arg
  *
  * @value: Returned value. //Out
@@ -177,6 +186,7 @@ struct drm_vmw_surface_create_req {
  * struct drm_wmv_surface_arg
  *
  * @sid: Surface id of created surface or surface to destroy or reference.
+ * @handle_type: Handle type for DRM_VMW_REF_SURFACE Ioctl.
  *
  * Output data from the DRM_VMW_CREATE_SURFACE Ioctl.
  * Input argument to the DRM_VMW_UNREF_SURFACE Ioctl.
@@ -185,7 +195,7 @@ struct drm_vmw_surface_create_req {
 
 struct drm_vmw_surface_arg {
 	int32_t sid;
-	uint32_t pad64;
+	enum drm_vmw_handle_type handle_type;
 };
 
 /**
diff --git a/include/uapi/linux/Kbuild b/include/uapi/linux/Kbuild
index 3ce25b5d75a9..6929571b79b0 100644
--- a/include/uapi/linux/Kbuild
+++ b/include/uapi/linux/Kbuild
@@ -139,6 +139,7 @@ header-y += hid.h
 header-y += hiddev.h
 header-y += hidraw.h
 header-y += hpet.h
+header-y += hyperv.h
 header-y += hysdn_if.h
 header-y += i2c-dev.h
 header-y += i2c.h
diff --git a/include/uapi/linux/audit.h b/include/uapi/linux/audit.h
index 2d48fe1274ca..4c31a366be16 100644
--- a/include/uapi/linux/audit.h
+++ b/include/uapi/linux/audit.h
@@ -70,7 +70,6 @@
 #define AUDIT_TTY_SET		1017	/* Set TTY auditing status */
 #define AUDIT_SET_FEATURE	1018	/* Turn an audit feature on or off */
 #define AUDIT_GET_FEATURE	1019	/* Get which features are enabled */
-#define AUDIT_FEATURE_CHANGE	1020	/* audit log listing feature changes */
 
 #define AUDIT_FIRST_USER_MSG	1100	/* Userspace messages mostly uninteresting to kernel */
 #define AUDIT_USER_AVC		1107	/* We filter this differently */
@@ -109,6 +108,8 @@
 #define AUDIT_NETFILTER_PKT	1324	/* Packets traversing netfilter chains */
 #define AUDIT_NETFILTER_CFG	1325	/* Netfilter chain modifications */
 #define AUDIT_SECCOMP		1326	/* Secure Computing event */
+#define AUDIT_PROCTITLE		1327	/* Proctitle emit event */
+#define AUDIT_FEATURE_CHANGE	1328	/* audit log listing feature changes */
 
 #define AUDIT_AVC		1400	/* SE Linux avc denial or grant */
 #define AUDIT_SELINUX_ERR	1401	/* Internal SE Linux Errors */
@@ -330,9 +331,17 @@ enum {
 #define AUDIT_FAIL_PRINTK	1
 #define AUDIT_FAIL_PANIC	2
 
+/*
+ * These bits disambiguate different calling conventions that share an
+ * ELF machine type, bitness, and endianness
+ */
+#define __AUDIT_ARCH_CONVENTION_MASK 0x30000000
+#define __AUDIT_ARCH_CONVENTION_MIPS64_N32 0x20000000
+
 /* distinguish syscall tables */
 #define __AUDIT_ARCH_64BIT 0x80000000
 #define __AUDIT_ARCH_LE	   0x40000000
+
 #define AUDIT_ARCH_ALPHA	(EM_ALPHA|__AUDIT_ARCH_64BIT|__AUDIT_ARCH_LE)
 #define AUDIT_ARCH_ARM		(EM_ARM|__AUDIT_ARCH_LE)
 #define AUDIT_ARCH_ARMEB	(EM_ARM)
@@ -345,7 +354,11 @@ enum {
 #define AUDIT_ARCH_MIPS		(EM_MIPS)
 #define AUDIT_ARCH_MIPSEL	(EM_MIPS|__AUDIT_ARCH_LE)
 #define AUDIT_ARCH_MIPS64	(EM_MIPS|__AUDIT_ARCH_64BIT)
+#define AUDIT_ARCH_MIPS64N32	(EM_MIPS|__AUDIT_ARCH_64BIT|\
+				 __AUDIT_ARCH_CONVENTION_MIPS64_N32)
 #define AUDIT_ARCH_MIPSEL64	(EM_MIPS|__AUDIT_ARCH_64BIT|__AUDIT_ARCH_LE)
+#define AUDIT_ARCH_MIPSEL64N32	(EM_MIPS|__AUDIT_ARCH_64BIT|__AUDIT_ARCH_LE|\
+				 __AUDIT_ARCH_CONVENTION_MIPS64_N32)
 #define AUDIT_ARCH_OPENRISC	(EM_OPENRISC)
 #define AUDIT_ARCH_PARISC	(EM_PARISC)
 #define AUDIT_ARCH_PARISC64	(EM_PARISC|__AUDIT_ARCH_64BIT)
diff --git a/include/uapi/linux/can.h b/include/uapi/linux/can.h
index e52958d7c2d1..5d9d1d140718 100644
--- a/include/uapi/linux/can.h
+++ b/include/uapi/linux/can.h
@@ -8,6 +8,38 @@
  * Copyright (c) 2002-2007 Volkswagen Group Electronic Research
  * All rights reserved.
  *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ * 3. Neither the name of Volkswagen nor the names of its contributors
+ *    may be used to endorse or promote products derived from this software
+ *    without specific prior written permission.
+ *
+ * Alternatively, provided that this notice is retained in full, this
+ * software may be distributed under the terms of the GNU General
+ * Public License ("GPL") version 2, in which case the provisions of the
+ * GPL apply INSTEAD OF those given above.
+ *
+ * The provided data structures and external interfaces from this code
+ * are not restricted to be used by modules with a GPL compatible license.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+ * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+ * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+ * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+ * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+ * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+ * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+ * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH
+ * DAMAGE.
  */
 
 #ifndef CAN_H
diff --git a/include/uapi/linux/can/netlink.h b/include/uapi/linux/can/netlink.h
index df944ed206a8..7e2e1863db16 100644
--- a/include/uapi/linux/can/netlink.h
+++ b/include/uapi/linux/can/netlink.h
@@ -96,6 +96,7 @@ struct can_ctrlmode {
 #define CAN_CTRLMODE_3_SAMPLES		0x04	/* Triple sampling mode */
 #define CAN_CTRLMODE_ONE_SHOT		0x08	/* One-Shot mode */
 #define CAN_CTRLMODE_BERR_REPORTING	0x10	/* Bus-error reporting */
+#define CAN_CTRLMODE_FD			0x20	/* CAN FD mode */
 
 /*
  * CAN device statistics
@@ -122,6 +123,8 @@ enum {
 	IFLA_CAN_RESTART_MS,
 	IFLA_CAN_RESTART,
 	IFLA_CAN_BERR_COUNTER,
+	IFLA_CAN_DATA_BITTIMING,
+	IFLA_CAN_DATA_BITTIMING_CONST,
 	__IFLA_CAN_MAX
 };
 
diff --git a/include/uapi/linux/capability.h b/include/uapi/linux/capability.h
index ba478fa3012e..154dd6d3c8fe 100644
--- a/include/uapi/linux/capability.h
+++ b/include/uapi/linux/capability.h
@@ -308,8 +308,12 @@ struct vfs_cap_data {
 
 #define CAP_LEASE            28
 
+/* Allow writing the audit log via unicast netlink socket */
+
 #define CAP_AUDIT_WRITE      29
 
+/* Allow configuration of audit via unicast netlink socket */
+
 #define CAP_AUDIT_CONTROL    30
 
 #define CAP_SETFCAP	     31
diff --git a/include/uapi/linux/capi.h b/include/uapi/linux/capi.h
index 65100d6cb89b..7b145fd7afb6 100644
--- a/include/uapi/linux/capi.h
+++ b/include/uapi/linux/capi.h
@@ -102,7 +102,7 @@ typedef struct capi_manufacturer_cmd {
 
 /*
  * member contr is input for
- * CAPI_GET_MANUFACTURER, CAPI_VERSION, CAPI_GET_SERIAL
+ * CAPI_GET_MANUFACTURER, CAPI_GET_VERSION, CAPI_GET_SERIAL
  * and CAPI_GET_PROFILE
  */
 typedef union capi_ioctl_struct {
diff --git a/include/uapi/linux/ethtool.h b/include/uapi/linux/ethtool.h
index 38dbafaa5341..fd161e91b6d7 100644
--- a/include/uapi/linux/ethtool.h
+++ b/include/uapi/linux/ethtool.h
@@ -16,37 +16,97 @@
 #include <linux/types.h>
 #include <linux/if_ether.h>
 
-/* This should work for both 32 and 64 bit userland. */
+/* All structures exposed to userland should be defined such that they
+ * have the same layout for 32-bit and 64-bit userland.
+ */
+
+/**
+ * struct ethtool_cmd - link control and status
+ * @cmd: Command number = %ETHTOOL_GSET or %ETHTOOL_SSET
+ * @supported: Bitmask of %SUPPORTED_* flags for the link modes,
+ *	physical connectors and other link features for which the
+ *	interface supports autonegotiation or auto-detection.
+ *	Read-only.
+ * @advertising: Bitmask of %ADVERTISED_* flags for the link modes,
+ *	physical connectors and other link features that are
+ *	advertised through autonegotiation or enabled for
+ *	auto-detection.
+ * @speed: Low bits of the speed
+ * @duplex: Duplex mode; one of %DUPLEX_*
+ * @port: Physical connector type; one of %PORT_*
+ * @phy_address: MDIO address of PHY