Merge android-4.4@d6fbbe5 (v4.4.93) into msm-4.4

* refs/heads/tmp-d6fbbe5
  Linux 4.4.93
  x86/alternatives: Fix alt_max_short macro to really be a max()
  USB: serial: console: fix use-after-free after failed setup
  USB: serial: qcserial: add Dell DW5818, DW5819
  USB: serial: option: add support for TP-Link LTE module
  USB: serial: cp210x: add support for ELV TFD500
  USB: serial: ftdi_sio: add id for Cypress WICED dev board
  fix unbalanced page refcounting in bio_map_user_iov
  direct-io: Prevent NULL pointer access in submit_page_section
  usb: gadget: composite: Fix use-after-free in usb_composite_overwrite_options
  ALSA: line6: Fix leftover URB at error-path during probe
  ALSA: caiaq: Fix stray URB at probe error path
  ALSA: seq: Fix copy_from_user() call inside lock
  ALSA: seq: Fix use-after-free at creating a port
  ALSA: usb-audio: Kill stray URB at exiting
  iommu/amd: Finish TLB flush in amd_iommu_unmap()
  usb: renesas_usbhs: Fix DMAC sequence for receiving zero-length packet
  KVM: nVMX: fix guest CR4 loading when emulating L2 to L1 exit
  crypto: shash - Fix zero-length shash ahash digest crash
  HID: usbhid: fix out-of-bounds bug
  dmaengine: edma: Align the memcpy acnt array size with the transfer
  MIPS: math-emu: Remove pr_err() calls from fpu_emu()
  USB: dummy-hcd: Fix deadlock caused by disconnect detection
  rcu: Allow for page faults in NMI handlers
  iwlwifi: mvm: use IWL_HCMD_NOCOPY for MCAST_FILTER_CMD
  nl80211: Define policy for packet pattern attributes
  CIFS: Reconnect expired SMB sessions
  ext4: in ext4_seek_{hole,data}, return -ENXIO for negative offsets
  brcmfmac: add length check in brcmf_cfg80211_escan_handler()
  ANDROID: HACK: arm64: use -mno-implicit-float instead of -mgeneral-regs-only
  sched: Update task->on_rq when tasks are moving between runqueues
  FROMLIST: f2fs: expose some sectors to user in inline data or dentry case
  crypto: Work around deallocated stack frame reference gcc bug on sparc.
  UPSTREAM: f2fs: fix potential panic during fstrim
  ANDROID: fscrypt: remove unnecessary fscrypto.h
  ANDROID: binder: fix node sched policy calculation
  ANDROID: Kbuild, LLVMLinux: allow overriding clang target triple
  CHROMIUM: arm64: Disable asm-operand-width warning for clang
  CHROMIUM: kbuild: clang: Disable the 'duplicate-decl-specifier' warning
  UPSTREAM: x86/build: Use cc-option to validate stack alignment parameter
  UPSTREAM: x86/build: Fix stack alignment for CLang
  UPSTREAM: efi/libstub/arm64: Set -fpie when building the EFI stub
  BACKPORT: efi/libstub/arm64: Force 'hidden' visibility for section markers
  UPSTREAM: compiler, clang: always inline when CONFIG_OPTIMIZE_INLINING is disabled
  UPSTREAM: x86/boot: #undef memcpy() et al in string.c
  UPSTREAM: crypto: arm64/sha - avoid non-standard inline asm tricks
  UPSTREAM: kbuild: clang: Disable 'address-of-packed-member' warning
  UPSTREAM: x86/build: Specify stack alignment for clang
  UPSTREAM: x86/build: Use __cc-option for boot code compiler options
  BACKPORT: kbuild: Add __cc-option macro
  UPSTREAM: x86/hweight: Don't clobber %rdi
  BACKPORT: x86/hweight: Get rid of the special calling convention
  BACKPORT: x86/mm/kaslr: Use the _ASM_MUL macro for multiplication to work around Clang incompatibility
  UPSTREAM: crypto, x86: aesni - fix token pasting for clang
  UPSTREAM: x86/kbuild: Use cc-option to enable -falign-{jumps/loops}
  UPSTREAM: compiler, clang: properly override 'inline' for clang
  UPSTREAM: compiler, clang: suppress warning for unused static inline functions
  UPSTREAM: Kbuild: provide a __UNIQUE_ID for clang
  UPSTREAM: modules: mark __inittest/__exittest as __maybe_unused
  BACKPORT: kbuild: Add support to generate LLVM assembly files
  UPSTREAM: kbuild: use -Oz instead of -Os when using clang
  BACKPORT: kbuild, LLVMLinux: Add -Werror to cc-option to support clang
  UPSTREAM: kbuild: drop -Wno-unknown-warning-option from clang options
  UPSTREAM: kbuild: fix asm-offset generation to work with clang
  UPSTREAM: kbuild: consolidate redundant sed script ASM offset generation
  UPSTREAM: kbuild: Consolidate header generation from ASM offset information
  UPSTREAM: kbuild: clang: add -no-integrated-as to KBUILD_[AC]FLAGS
  UPSTREAM: kbuild: Add better clang cross build support

Conflicts:
	arch/x86/lib/Makefile
	net/wireless/nl80211.c

Change-Id: I76032e8d1206903bc948b9ed918e7ddee7e746c7
Signed-off-by: Blagovest Kolenichev <bkolenichev@codeaurora.org>

5 files changed, 21 insertions, 423 deletions

diff --git a/include/linux/compiler-clang.h b/include/linux/compiler-clang.h
index d1e49d52b640..de179993e039 100644
--- a/include/linux/compiler-clang.h
+++ b/include/linux/compiler-clang.h
@@ -10,3 +10,8 @@
 #undef uninitialized_var
 #define uninitialized_var(x) x = *(&(x))
 #endif
+
+/* same as gcc, this was present in clang-2.6 so we can assume it works
+ * with any version that can compile the kernel
+ */
+#define __UNIQUE_ID(prefix) __PASTE(__PASTE(__UNIQUE_ID_, prefix), __COUNTER__)
diff --git a/include/linux/compiler-gcc.h b/include/linux/compiler-gcc.h
index 287e698c28de..557dae96ce74 100644
--- a/include/linux/compiler-gcc.h
+++ b/include/linux/compiler-gcc.h
@@ -66,18 +66,22 @@
 
 /*
  * Force always-inline if the user requests it so via the .config,
- * or if gcc is too old:
+ * or if gcc is too old.
+ * GCC does not warn about unused static inline functions for
+ * -Wunused-function.  This turns out to avoid the need for complex #ifdef
+ * directives.  Suppress the warning in clang as well by using "unused"
+ * function attribute, which is redundant but not harmful for gcc.
  */
 #if !defined(CONFIG_ARCH_SUPPORTS_OPTIMIZED_INLINING) ||		\
     !defined(CONFIG_OPTIMIZE_INLINING) || (__GNUC__ < 4)
-#define inline		inline		__attribute__((always_inline)) notrace
-#define __inline__	__inline__	__attribute__((always_inline)) notrace
-#define __inline	__inline	__attribute__((always_inline)) notrace
+#define inline inline		__attribute__((always_inline,unused)) notrace
+#define __inline__ __inline__	__attribute__((always_inline,unused)) notrace
+#define __inline __inline	__attribute__((always_inline,unused)) notrace
 #else
 /* A lot of inline functions can cause havoc with function tracing */
-#define inline		inline		notrace
-#define __inline__	__inline__	notrace
-#define __inline	__inline	notrace
+#define inline inline		__attribute__((unused)) notrace
+#define __inline__ __inline__	__attribute__((unused)) notrace
+#define __inline __inline	__attribute__((unused)) notrace
 #endif
 
 #define __always_inline	inline __attribute__((always_inline))
diff --git a/include/linux/fscrypto.h b/include/linux/fscrypto.h
deleted file mode 100644
index e6e53a36104b..000000000000
--- a/include/linux/fscrypto.h
+++ /dev/null
@@ -1,411 +0,0 @@
-/*
- * General per-file encryption definition
- *
- * Copyright (C) 2015, Google, Inc.
- *
- * Written by Michael Halcrow, 2015.
- * Modified by Jaegeuk Kim, 2015.
- */
-
-#ifndef _LINUX_FSCRYPTO_H
-#define _LINUX_FSCRYPTO_H
-
-#include <linux/key.h>
-#include <linux/fs.h>
-#include <linux/mm.h>
-#include <linux/bio.h>
-#include <linux/dcache.h>
-#include <crypto/skcipher.h>
-#include <uapi/linux/fs.h>
-
-#define FS_KEY_DERIVATION_NONCE_SIZE		16
-#define FS_ENCRYPTION_CONTEXT_FORMAT_V1		1
-
-#define FS_POLICY_FLAGS_PAD_4		0x00
-#define FS_POLICY_FLAGS_PAD_8		0x01
-#define FS_POLICY_FLAGS_PAD_16		0x02
-#define FS_POLICY_FLAGS_PAD_32		0x03
-#define FS_POLICY_FLAGS_PAD_MASK	0x03
-#define FS_POLICY_FLAGS_VALID		0x03
-
-/* Encryption algorithms */
-#define FS_ENCRYPTION_MODE_INVALID		0
-#define FS_ENCRYPTION_MODE_AES_256_XTS		1
-#define FS_ENCRYPTION_MODE_AES_256_GCM		2
-#define FS_ENCRYPTION_MODE_AES_256_CBC		3
-#define FS_ENCRYPTION_MODE_AES_256_CTS		4
-
-/**
- * Encryption context for inode
- *
- * Protector format:
- *  1 byte: Protector format (1 = this version)
- *  1 byte: File contents encryption mode
- *  1 byte: File names encryption mode
- *  1 byte: Flags
- *  8 bytes: Master Key descriptor
- *  16 bytes: Encryption Key derivation nonce
- */
-struct fscrypt_context {
-	u8 format;
-	u8 contents_encryption_mode;
-	u8 filenames_encryption_mode;
-	u8 flags;
-	u8 master_key_descriptor[FS_KEY_DESCRIPTOR_SIZE];
-	u8 nonce[FS_KEY_DERIVATION_NONCE_SIZE];
-} __packed;
-
-/* Encryption parameters */
-#define FS_XTS_TWEAK_SIZE		16
-#define FS_AES_128_ECB_KEY_SIZE		16
-#define FS_AES_256_GCM_KEY_SIZE		32
-#define FS_AES_256_CBC_KEY_SIZE		32
-#define FS_AES_256_CTS_KEY_SIZE		32
-#define FS_AES_256_XTS_KEY_SIZE		64
-#define FS_MAX_KEY_SIZE			64
-
-#define FS_KEY_DESC_PREFIX		"fscrypt:"
-#define FS_KEY_DESC_PREFIX_SIZE		8
-
-/* This is passed in from userspace into the kernel keyring */
-struct fscrypt_key {
-	u32 mode;
-	u8 raw[FS_MAX_KEY_SIZE];
-	u32 size;
-} __packed;
-
-struct fscrypt_info {
-	u8 ci_data_mode;
-	u8 ci_filename_mode;
-	u8 ci_flags;
-	struct crypto_skcipher *ci_ctfm;
-	struct key *ci_keyring_key;
-	u8 ci_master_key[FS_KEY_DESCRIPTOR_SIZE];
-};
-
-#define FS_CTX_REQUIRES_FREE_ENCRYPT_FL		0x00000001
-#define FS_WRITE_PATH_FL			0x00000002
-
-struct fscrypt_ctx {
-	union {
-		struct {
-			struct page *bounce_page;	/* Ciphertext page */
-			struct page *control_page;	/* Original page  */
-		} w;
-		struct {
-			struct bio *bio;
-			struct work_struct work;
-		} r;
-		struct list_head free_list;	/* Free list */
-	};
-	u8 flags;				/* Flags */
-	u8 mode;				/* Encryption mode for tfm */
-};
-
-struct fscrypt_completion_result {
-	struct completion completion;
-	int res;
-};
-
-#define DECLARE_FS_COMPLETION_RESULT(ecr) \
-	struct fscrypt_completion_result ecr = { \
-		COMPLETION_INITIALIZER((ecr).completion), 0 }
-
-#define FS_FNAME_NUM_SCATTER_ENTRIES	4
-#define FS_CRYPTO_BLOCK_SIZE		16
-#define FS_FNAME_CRYPTO_DIGEST_SIZE	32
-
-/**
- * For encrypted symlinks, the ciphertext length is stored at the beginning
- * of the string in little-endian format.
- */
-struct fscrypt_symlink_data {
-	__le16 len;
-	char encrypted_path[1];
-} __packed;
-
-/**
- * This function is used to calculate the disk space required to
- * store a filename of length l in encrypted symlink format.
- */
-static inline u32 fscrypt_symlink_data_len(u32 l)
-{
-	if (l < FS_CRYPTO_BLOCK_SIZE)
-		l = FS_CRYPTO_BLOCK_SIZE;
-	return (l + sizeof(struct fscrypt_symlink_data) - 1);
-}
-
-struct fscrypt_str {
-	unsigned char *name;
-	u32 len;
-};
-
-struct fscrypt_name {
-	const struct qstr *usr_fname;
-	struct fscrypt_str disk_name;
-	u32 hash;
-	u32 minor_hash;
-	struct fscrypt_str crypto_buf;
-};
-
-#define FSTR_INIT(n, l)		{ .name = n, .len = l }
-#define FSTR_TO_QSTR(f)		QSTR_INIT((f)->name, (f)->len)
-#define fname_name(p)		((p)->disk_name.name)
-#define fname_len(p)		((p)->disk_name.len)
-
-/*
- * crypto opertions for filesystems
- */
-struct fscrypt_operations {
-	int (*get_context)(struct inode *, void *, size_t);
-	int (*key_prefix)(struct inode *, u8 **);
-	int (*prepare_context)(struct inode *);
-	int (*set_context)(struct inode *, const void *, size_t, void *);
-	int (*dummy_context)(struct inode *);
-	bool (*is_encrypted)(struct inode *);
-	bool (*empty_dir)(struct inode *);
-	unsigned (*max_namelen)(struct inode *);
-};
-
-static inline bool fscrypt_dummy_context_enabled(struct inode *inode)
-{
-	if (inode->i_sb->s_cop->dummy_context &&
-				inode->i_sb->s_cop->dummy_context(inode))
-		return true;
-	return false;
-}
-
-static inline bool fscrypt_valid_contents_enc_mode(u32 mode)
-{
-	return (mode == FS_ENCRYPTION_MODE_AES_256_XTS);
-}
-
-static inline bool fscrypt_valid_filenames_enc_mode(u32 mode)
-{
-	return (mode == FS_ENCRYPTION_MODE_AES_256_CTS);
-}
-
-static inline bool fscrypt_is_dot_dotdot(const struct qstr *str)
-{
-	if (str->len == 1 && str->name[0] == '.')
-		return true;
-
-	if (str->len == 2 && str->name[0] == '.' && str->name[1] == '.')
-		return true;
-
-	return false;
-}
-
-static inline struct page *fscrypt_control_page(struct page *page)
-{
-#if IS_ENABLED(CONFIG_FS_ENCRYPTION)
-	return ((struct fscrypt_ctx *)page_private(page))->w.control_page;
-#else
-	WARN_ON_ONCE(1);
-	return ERR_PTR(-EINVAL);
-#endif
-}
-
-static inline int fscrypt_has_encryption_key(struct inode *inode)
-{
-#if IS_ENABLED(CONFIG_FS_ENCRYPTION)
-	return (inode->i_crypt_info != NULL);
-#else
-	return 0;
-#endif
-}
-
-static inline void fscrypt_set_encrypted_dentry(struct dentry *dentry)
-{
-#if IS_ENABLED(CONFIG_FS_ENCRYPTION)
-	spin_lock(&dentry->d_lock);
-	dentry->d_flags |= DCACHE_ENCRYPTED_WITH_KEY;
-	spin_unlock(&dentry->d_lock);
-#endif
-}
-
-#if IS_ENABLED(CONFIG_FS_ENCRYPTION)
-extern const struct dentry_operations fscrypt_d_ops;
-#endif
-
-static inline void fscrypt_set_d_op(struct dentry *dentry)
-{
-#if IS_ENABLED(CONFIG_FS_ENCRYPTION)
-	d_set_d_op(dentry, &fscrypt_d_ops);
-#endif
-}
-
-#if IS_ENABLED(CONFIG_FS_ENCRYPTION)
-/* crypto.c */
-extern struct kmem_cache *fscrypt_info_cachep;
-int fscrypt_initialize(void);
-
-extern struct fscrypt_ctx *fscrypt_get_ctx(struct inode *, gfp_t);
-extern void fscrypt_release_ctx(struct fscrypt_ctx *);
-extern struct page *fscrypt_encrypt_page(struct inode *, struct page *, gfp_t);
-extern int fscrypt_decrypt_page(struct page *);
-extern void fscrypt_decrypt_bio_pages(struct fscrypt_ctx *, struct bio *);
-extern void fscrypt_pullback_bio_page(struct page **, bool);
-extern void fscrypt_restore_control_page(struct page *);
-extern int fscrypt_zeroout_range(struct inode *, pgoff_t, sector_t,
-						unsigned int);
-/* policy.c */
-extern int fscrypt_ioctl_set_policy(struct file *, const void __user *);
-extern int fscrypt_ioctl_get_policy(struct file *, void __user *);
-extern int fscrypt_has_permitted_context(struct inode *, struct inode *);
-extern int fscrypt_inherit_context(struct inode *, struct inode *,
-					void *, bool);
-/* keyinfo.c */
-extern int get_crypt_info(struct inode *);
-extern int fscrypt_get_encryption_info(struct inode *);
-extern void fscrypt_put_encryption_info(struct inode *, struct fscrypt_info *);
-
-/* fname.c */
-extern int fscrypt_setup_filename(struct inode *, const struct qstr *,
-				int lookup, struct fscrypt_name *);
-extern void fscrypt_free_filename(struct fscrypt_name *);
-extern u32 fscrypt_fname_encrypted_size(struct inode *, u32);
-extern int fscrypt_fname_alloc_buffer(struct inode *, u32,
-				struct fscrypt_str *);
-extern void fscrypt_fname_free_buffer(struct fscrypt_str *);
-extern int fscrypt_fname_disk_to_usr(struct inode *, u32, u32,
-			const struct fscrypt_str *, struct fscrypt_str *);
-extern int fscrypt_fname_usr_to_disk(struct inode *, const struct qstr *,
-			struct fscrypt_str *);
-#endif
-
-/* crypto.c */
-static inline struct fscrypt_ctx *fscrypt_notsupp_get_ctx(struct inode *i,
-							gfp_t f)
-{
-	return ERR_PTR(-EOPNOTSUPP);
-}
-
-static inline void fscrypt_notsupp_release_ctx(struct fscrypt_ctx *c)
-{
-	return;
-}
-
-static inline struct page *fscrypt_notsupp_encrypt_page(struct inode *i,
-						struct page *p, gfp_t f)
-{
-	return ERR_PTR(-EOPNOTSUPP);
-}
-
-static inline int fscrypt_notsupp_decrypt_page(struct page *p)
-{
-	return -EOPNOTSUPP;
-}
-
-static inline void fscrypt_notsupp_decrypt_bio_pages(struct fscrypt_ctx *c,
-						struct bio *b)
-{
-	return;
-}
-
-static inline void fscrypt_notsupp_pullback_bio_page(struct page **p, bool b)
-{
-	return;
-}
-
-static inline void fscrypt_notsupp_restore_control_page(struct page *p)
-{
-	return;
-}
-
-static inline int fscrypt_notsupp_zeroout_range(struct inode *i, pgoff_t p,
-					sector_t s, unsigned int f)
-{
-	return -EOPNOTSUPP;
-}
-
-/* policy.c */
-static inline int fscrypt_notsupp_ioctl_set_policy(struct file *f,
-				const void __user *arg)
-{
-	return -EOPNOTSUPP;
-}
-
-static inline int fscrypt_notsupp_ioctl_get_policy(struct file *f,
-				void __user *arg)
-{
-	return -EOPNOTSUPP;
-}
-
-static inline int fscrypt_notsupp_has_permitted_context(struct inode *p,
-				struct inode *i)
-{
-	return 0;
-}
-
-static inline int fscrypt_notsupp_inherit_context(struct inode *p,
-				struct inode *i, void *v, bool b)
-{
-	return -EOPNOTSUPP;
-}
-
-/* keyinfo.c */
-static inline int fscrypt_notsupp_get_encryption_info(struct inode *i)
-{
-	return -EOPNOTSUPP;
-}
-
-static inline void fscrypt_notsupp_put_encryption_info(struct inode *i,
-					struct fscrypt_info *f)
-{
-	return;
-}
-
- /* fname.c */
-static inline int fscrypt_notsupp_setup_filename(struct inode *dir,
-			const struct qstr *iname,
-			int lookup, struct fscrypt_name *fname)
-{
-	if (dir->i_sb->s_cop->is_encrypted(dir))
-		return -EOPNOTSUPP;
-
-	memset(fname, 0, sizeof(struct fscrypt_name));
-	fname->usr_fname = iname;
-	fname->disk_name.name = (unsigned char *)iname->name;
-	fname->disk_name.len = iname->len;
-	return 0;
-}
-
-static inline void fscrypt_notsupp_free_filename(struct fscrypt_name *fname)
-{
-	return;
-}
-
-static inline u32 fscrypt_notsupp_fname_encrypted_size(struct inode *i, u32 s)
-{
-	/* never happens */
-	WARN_ON(1);
-	return 0;
-}
-
-static inline int fscrypt_notsupp_fname_alloc_buffer(struct inode *inode,
-				u32 ilen, struct fscrypt_str *crypto_str)
-{
-	return -EOPNOTSUPP;
-}
-
-static inline void fscrypt_notsupp_fname_free_buffer(struct fscrypt_str *c)
-{
-	return;
-}
-
-static inline int fscrypt_notsupp_fname_disk_to_usr(struct inode *inode,
-			u32 hash, u32 minor_hash,
-			const struct fscrypt_str *iname,
-			struct fscrypt_str *oname)
-{
-	return -EOPNOTSUPP;
-}
-
-static inline int fscrypt_notsupp_fname_usr_to_disk(struct inode *inode,
-			const struct qstr *iname,
-			struct fscrypt_str *oname)
-{
-	return -EOPNOTSUPP;
-}
-#endif	/* _LINUX_FSCRYPTO_H */
diff --git a/include/linux/kbuild.h b/include/linux/kbuild.h
index 22a72198c14b..4e80f3a9ad58 100644
--- a/include/linux/kbuild.h
+++ b/include/linux/kbuild.h
@@ -2,14 +2,14 @@
 #define __LINUX_KBUILD_H
 
 #define DEFINE(sym, val) \
-        asm volatile("\n->" #sym " %0 " #val : : "i" (val))
+	asm volatile("\n.ascii \"->" #sym " %0 " #val "\"" : : "i" (val))
 
-#define BLANK() asm volatile("\n->" : : )
+#define BLANK() asm volatile("\n.ascii \"->\"" : : )
 
 #define OFFSET(sym, str, mem) \
 	DEFINE(sym, offsetof(struct str, mem))
 
 #define COMMENT(x) \
-	asm volatile("\n->#" x)
+	asm volatile("\n.ascii \"->#" x "\"")
 
 #endif
diff --git a/include/linux/module.h b/include/linux/module.h
index b229a9961d02..e2324653c8ef 100644
--- a/include/linux/module.h
+++ b/include/linux/module.h
@@ -125,13 +125,13 @@ extern void cleanup_module(void);
 
 /* Each module must use one module_init(). */
 #define module_init(initfn)					\
-	static inline initcall_t __inittest(void)		\
+	static inline initcall_t __maybe_unused __inittest(void)		\
 	{ return initfn; }					\
 	int init_module(void) __attribute__((alias(#initfn)));
 
 /* This is only required if you want to be unloadable. */
 #define module_exit(exitfn)					\
-	static inline exitcall_t __exittest(void)		\
+	static inline exitcall_t __maybe_unused __exittest(void)		\
 	{ return exitfn; }					\
 	void cleanup_module(void) __attribute__((alias(#exitfn)));