Merge 4.4.113 into android-4.4

Changes in 4.4.113
	gcov: disable for COMPILE_TEST
	x86/cpu/AMD: Make LFENCE a serializing instruction
	x86/cpu/AMD: Use LFENCE_RDTSC in preference to MFENCE_RDTSC
	x86/mm/32: Move setup_clear_cpu_cap(X86_FEATURE_PCID) earlier
	x86/asm: Use register variable to get stack pointer value
	x86/kbuild: enable modversions for symbols exported from asm
	x86/asm: Make asm/alternative.h safe from assembly
	EXPORT_SYMBOL() for asm
	kconfig.h: use __is_defined() to check if MODULE is defined
	x86/retpoline: Add initial retpoline support
	x86/spectre: Add boot time option to select Spectre v2 mitigation
	x86/retpoline/crypto: Convert crypto assembler indirect jumps
	x86/retpoline/entry: Convert entry assembler indirect jumps
	x86/retpoline/ftrace: Convert ftrace assembler indirect jumps
	x86/retpoline/hyperv: Convert assembler indirect jumps
	x86/retpoline/xen: Convert Xen hypercall indirect jumps
	x86/retpoline/checksum32: Convert assembler indirect jumps
	x86/retpoline/irq32: Convert assembler indirect jumps
	x86/retpoline: Fill return stack buffer on vmexit
	x86/retpoline: Remove compile time warning
	scsi: sg: disable SET_FORCE_LOW_DMA
	futex: Prevent overflow by strengthen input validation
	ALSA: pcm: Remove yet superfluous WARN_ON()
	ALSA: hda - Apply headphone noise quirk for another Dell XPS 13 variant
	ALSA: hda - Apply the existing quirk to iMac 14,1
	af_key: fix buffer overread in verify_address_len()
	af_key: fix buffer overread in parse_exthdrs()
	scsi: hpsa: fix volume offline state
	sched/deadline: Zero out positive runtime after throttling constrained tasks
	x86/retpoline: Add LFENCE to the retpoline/RSB filling RSB macros
	module: Add retpoline tag to VERMAGIC
	pipe: avoid round_pipe_size() nr_pages overflow on 32-bit
	x86/apic/vector: Fix off by one in error path
	Input: 88pm860x-ts - fix child-node lookup
	Input: twl6040-vibra - fix DT node memory management
	Input: twl6040-vibra - fix child-node lookup
	Input: twl4030-vibra - fix sibling-node lookup
	tracing: Fix converting enum's from the map in trace_event_eval_update()
	phy: work around 'phys' references to usb-nop-xceiv devices
	ARM: dts: kirkwood: fix pin-muxing of MPP7 on OpenBlocks A7
	can: peak: fix potential bug in packet fragmentation
	libata: apply MAX_SEC_1024 to all LITEON EP1 series devices
	dm btree: fix serious bug in btree_split_beneath()
	dm thin metadata: THIN_MAX_CONCURRENT_LOCKS should be 6
	arm64: KVM: Fix SMCCC handling of unimplemented SMC/HVC calls
	x86/cpu, x86/pti: Do not enable PTI on AMD processors
	kbuild: modversions for EXPORT_SYMBOL() for asm
	x86/mce: Make machine check speculation protected
	retpoline: Introduce start/end markers of indirect thunk
	kprobes/x86: Blacklist indirect thunk functions for kprobes
	kprobes/x86: Disable optimizing on the function jumps to indirect thunk
	x86/pti: Document fix wrong index
	x86/retpoline: Optimize inline assembler for vmexit_fill_RSB
	MIPS: AR7: ensure the port type's FCR value is used
	Linux 4.4.113

Signed-off-by: Greg Kroah-Hartman <gregkh@google.com>

5 files changed, 114 insertions, 7 deletions

diff --git a/include/asm-generic/asm-prototypes.h b/include/asm-generic/asm-prototypes.h
new file mode 100644
index 000000000000..df13637e4017
--- /dev/null
+++ b/include/asm-generic/asm-prototypes.h
@@ -0,0 +1,7 @@
+#include <linux/bitops.h>
+extern void *__memset(void *, int, __kernel_size_t);
+extern void *__memcpy(void *, const void *, __kernel_size_t);
+extern void *__memmove(void *, const void *, __kernel_size_t);
+extern void *memset(void *, int, __kernel_size_t);
+extern void *memcpy(void *, const void *, __kernel_size_t);
+extern void *memmove(void *, const void *, __kernel_size_t);
diff --git a/include/asm-generic/export.h b/include/asm-generic/export.h
new file mode 100644
index 000000000000..43199a049da5
--- /dev/null
+++ b/include/asm-generic/export.h
@@ -0,0 +1,94 @@
+#ifndef __ASM_GENERIC_EXPORT_H
+#define __ASM_GENERIC_EXPORT_H
+
+#ifndef KSYM_FUNC
+#define KSYM_FUNC(x) x
+#endif
+#ifdef CONFIG_64BIT
+#define __put .quad
+#ifndef KSYM_ALIGN
+#define KSYM_ALIGN 8
+#endif
+#ifndef KCRC_ALIGN
+#define KCRC_ALIGN 8
+#endif
+#else
+#define __put .long
+#ifndef KSYM_ALIGN
+#define KSYM_ALIGN 4
+#endif
+#ifndef KCRC_ALIGN
+#define KCRC_ALIGN 4
+#endif
+#endif
+
+#ifdef CONFIG_HAVE_UNDERSCORE_SYMBOL_PREFIX
+#define KSYM(name) _##name
+#else
+#define KSYM(name) name
+#endif
+
+/*
+ * note on .section use: @progbits vs %progbits nastiness doesn't matter,
+ * since we immediately emit into those sections anyway.
+ */
+.macro ___EXPORT_SYMBOL name,val,sec
+#ifdef CONFIG_MODULES
+	.globl KSYM(__ksymtab_\name)
+	.section ___ksymtab\sec+\name,"a"
+	.balign KSYM_ALIGN
+KSYM(__ksymtab_\name):
+	__put \val, KSYM(__kstrtab_\name)
+	.previous
+	.section __ksymtab_strings,"a"
+KSYM(__kstrtab_\name):
+#ifdef CONFIG_HAVE_UNDERSCORE_SYMBOL_PREFIX
+	.asciz "_\name"
+#else
+	.asciz "\name"
+#endif
+	.previous
+#ifdef CONFIG_MODVERSIONS
+	.section ___kcrctab\sec+\name,"a"
+	.balign KCRC_ALIGN
+KSYM(__kcrctab_\name):
+	__put KSYM(__crc_\name)
+	.weak KSYM(__crc_\name)
+	.previous
+#endif
+#endif
+.endm
+#undef __put
+
+#if defined(__KSYM_DEPS__)
+
+#define __EXPORT_SYMBOL(sym, val, sec)	=== __KSYM_##sym ===
+
+#elif defined(CONFIG_TRIM_UNUSED_KSYMS)
+
+#include <linux/kconfig.h>
+#include <generated/autoksyms.h>
+
+#define __EXPORT_SYMBOL(sym, val, sec)				\
+	__cond_export_sym(sym, val, sec, config_enabled(__KSYM_##sym))
+#define __cond_export_sym(sym, val, sec, conf)			\
+	___cond_export_sym(sym, val, sec, conf)
+#define ___cond_export_sym(sym, val, sec, enabled)		\
+	__cond_export_sym_##enabled(sym, val, sec)
+#define __cond_export_sym_1(sym, val, sec) ___EXPORT_SYMBOL sym, val, sec
+#define __cond_export_sym_0(sym, val, sec) /* nothing */
+
+#else
+#define __EXPORT_SYMBOL(sym, val, sec) ___EXPORT_SYMBOL sym, val, sec
+#endif
+
+#define EXPORT_SYMBOL(name)					\
+	__EXPORT_SYMBOL(name, KSYM_FUNC(KSYM(name)),)
+#define EXPORT_SYMBOL_GPL(name) 				\
+	__EXPORT_SYMBOL(name, KSYM_FUNC(KSYM(name)), _gpl)
+#define EXPORT_DATA_SYMBOL(name)				\
+	__EXPORT_SYMBOL(name, KSYM(name),)
+#define EXPORT_DATA_SYMBOL_GPL(name)				\
+	__EXPORT_SYMBOL(name, KSYM(name),_gpl)
+
+#endif
diff --git a/include/linux/kconfig.h b/include/linux/kconfig.h
index b33c7797eb57..a94b5bf57f51 100644
--- a/include/linux/kconfig.h
+++ b/include/linux/kconfig.h
@@ -17,10 +17,11 @@
  * the last step cherry picks the 2nd arg, we get a zero.
  */
 #define __ARG_PLACEHOLDER_1 0,
-#define config_enabled(cfg) _config_enabled(cfg)
-#define _config_enabled(value) __config_enabled(__ARG_PLACEHOLDER_##value)
-#define __config_enabled(arg1_or_junk) ___config_enabled(arg1_or_junk 1, 0)
-#define ___config_enabled(__ignored, val, ...) val
+#define config_enabled(cfg)		___is_defined(cfg)
+#define __is_defined(x)			___is_defined(x)
+#define ___is_defined(val)		____is_defined(__ARG_PLACEHOLDER_##val)
+#define ____is_defined(arg1_or_junk)	__take_second_arg(arg1_or_junk 1, 0)
+#define __take_second_arg(__ignored, val, ...) val
 
 /*
  * IS_BUILTIN(CONFIG_FOO) evaluates to 1 if CONFIG_FOO is set to 'y', 0
@@ -42,7 +43,7 @@
  * built-in code when CONFIG_FOO is set to 'm'.
  */
 #define IS_REACHABLE(option) (config_enabled(option) || \
-		 (config_enabled(option##_MODULE) && config_enabled(MODULE)))
+		 (config_enabled(option##_MODULE) && __is_defined(MODULE)))
 
 /*
  * IS_ENABLED(CONFIG_FOO) evaluates to 1 if CONFIG_FOO is set to 'y' or 'm',
diff --git a/include/linux/vermagic.h b/include/linux/vermagic.h
index 6f8fbcf10dfb..a3d04934aa96 100644
--- a/include/linux/vermagic.h
+++ b/include/linux/vermagic.h
@@ -24,10 +24,16 @@
 #ifndef MODULE_ARCH_VERMAGIC
 #define MODULE_ARCH_VERMAGIC ""
 #endif
+#ifdef RETPOLINE
+#define MODULE_VERMAGIC_RETPOLINE "retpoline "
+#else
+#define MODULE_VERMAGIC_RETPOLINE ""
+#endif
 
 #define VERMAGIC_STRING 						\
 	UTS_RELEASE " "							\
 	MODULE_VERMAGIC_SMP MODULE_VERMAGIC_PREEMPT 			\
 	MODULE_VERMAGIC_MODULE_UNLOAD MODULE_VERMAGIC_MODVERSIONS	\
-	MODULE_ARCH_VERMAGIC
+	MODULE_ARCH_VERMAGIC						\
+	MODULE_VERMAGIC_RETPOLINE
 
diff --git a/include/scsi/sg.h b/include/scsi/sg.h
index 3afec7032448..20bc71c3e0b8 100644
--- a/include/scsi/sg.h
+++ b/include/scsi/sg.h
@@ -197,7 +197,6 @@ typedef struct sg_req_info { /* used by SG_GET_REQUEST_TABLE ioctl() */
 #define SG_DEFAULT_RETRIES 0
 
 /* Defaults, commented if they differ from original sg driver */
-#define SG_DEF_FORCE_LOW_DMA 0  /* was 1 -> memory below 16MB on i386 */
 #define SG_DEF_FORCE_PACK_ID 0
 #define SG_DEF_KEEP_ORPHAN 0
 #define SG_DEF_RESERVED_SIZE SG_SCATTER_SZ /* load time option */