Merge android-4.4.113 (ef588ef) into msm-4.4

* refs/heads/tmp-ef588ef
  Linux 4.4.113
  MIPS: AR7: ensure the port type's FCR value is used
  x86/retpoline: Optimize inline assembler for vmexit_fill_RSB
  x86/pti: Document fix wrong index
  kprobes/x86: Disable optimizing on the function jumps to indirect thunk
  kprobes/x86: Blacklist indirect thunk functions for kprobes
  retpoline: Introduce start/end markers of indirect thunk
  x86/mce: Make machine check speculation protected
  kbuild: modversions for EXPORT_SYMBOL() for asm
  x86/cpu, x86/pti: Do not enable PTI on AMD processors
  arm64: KVM: Fix SMCCC handling of unimplemented SMC/HVC calls
  dm thin metadata: THIN_MAX_CONCURRENT_LOCKS should be 6
  dm btree: fix serious bug in btree_split_beneath()
  libata: apply MAX_SEC_1024 to all LITEON EP1 series devices
  can: peak: fix potential bug in packet fragmentation
  ARM: dts: kirkwood: fix pin-muxing of MPP7 on OpenBlocks A7
  phy: work around 'phys' references to usb-nop-xceiv devices
  tracing: Fix converting enum's from the map in trace_event_eval_update()
  Input: twl4030-vibra - fix sibling-node lookup
  Input: twl6040-vibra - fix child-node lookup
  Input: twl6040-vibra - fix DT node memory management
  Input: 88pm860x-ts - fix child-node lookup
  x86/apic/vector: Fix off by one in error path
  pipe: avoid round_pipe_size() nr_pages overflow on 32-bit
  module: Add retpoline tag to VERMAGIC
  x86/retpoline: Add LFENCE to the retpoline/RSB filling RSB macros
  sched/deadline: Zero out positive runtime after throttling constrained tasks
  scsi: hpsa: fix volume offline state
  af_key: fix buffer overread in parse_exthdrs()
  af_key: fix buffer overread in verify_address_len()
  ALSA: hda - Apply the existing quirk to iMac 14,1
  ALSA: hda - Apply headphone noise quirk for another Dell XPS 13 variant
  ALSA: pcm: Remove yet superfluous WARN_ON()
  futex: Prevent overflow by strengthen input validation
  scsi: sg: disable SET_FORCE_LOW_DMA
  x86/retpoline: Remove compile time warning
  x86/retpoline: Fill return stack buffer on vmexit
  x86/retpoline/irq32: Convert assembler indirect jumps
  x86/retpoline/checksum32: Convert assembler indirect jumps
  x86/retpoline/xen: Convert Xen hypercall indirect jumps
  x86/retpoline/hyperv: Convert assembler indirect jumps
  x86/retpoline/ftrace: Convert ftrace assembler indirect jumps
  x86/retpoline/entry: Convert entry assembler indirect jumps
  x86/retpoline/crypto: Convert crypto assembler indirect jumps
  x86/spectre: Add boot time option to select Spectre v2 mitigation
  x86/retpoline: Add initial retpoline support
  kconfig.h: use __is_defined() to check if MODULE is defined
  EXPORT_SYMBOL() for asm
  x86/asm: Make asm/alternative.h safe from assembly
  x86/kbuild: enable modversions for symbols exported from asm
  x86/asm: Use register variable to get stack pointer value
  x86/mm/32: Move setup_clear_cpu_cap(X86_FEATURE_PCID) earlier
  x86/cpu/AMD: Use LFENCE_RDTSC in preference to MFENCE_RDTSC
  x86/cpu/AMD: Make LFENCE a serializing instruction
  gcov: disable for COMPILE_TEST
  ANDROID: sdcardfs: Move default_normal to superblock
  blkdev: Refactoring block io latency histogram codes
  FROMLIST: arm64: kpti: Fix the interaction between ASID switching and software PAN
  FROMLIST: arm64: Move post_ttbr_update_workaround to C code
  FROMLIST: arm64: mm: Rename post_ttbr0_update_workaround
  sched: EAS: Initialize push_task as NULL to avoid direct reference on out_unlock path

Conflicts:
	arch/arm64/include/asm/efi.h
	arch/arm64/include/asm/mmu_context.h
	drivers/scsi/sg.c
	drivers/scsi/ufs/ufshcd.h

Change-Id: Ibfa06af8ef308077aad6995874d4b7b0a73e95f3
Signed-off-by: Srinivasarao P <spathi@codeaurora.org>

4 files changed, 26 insertions, 35 deletions

diff --git a/include/linux/blkdev.h b/include/linux/blkdev.h
index 8150e164385c..9374470d9356 100644
--- a/include/linux/blkdev.h
+++ b/include/linux/blkdev.h
@@ -1700,43 +1700,26 @@ static const u_int64_t latency_x_axis_us[] = {
 #define BLK_IO_LAT_HIST_ZERO            2
 
 struct io_latency_state {
-	u_int64_t	latency_y_axis_read[ARRAY_SIZE(latency_x_axis_us) + 1];
-	u_int64_t	latency_reads_elems;
-	u_int64_t	latency_y_axis_write[ARRAY_SIZE(latency_x_axis_us) + 1];
-	u_int64_t	latency_writes_elems;
+	u_int64_t	latency_y_axis[ARRAY_SIZE(latency_x_axis_us) + 1];
+	u_int64_t	latency_elems;
+	u_int64_t	latency_sum;
 };
 
 static inline void
-blk_update_latency_hist(struct io_latency_state *s,
-			int read,
-			u_int64_t delta_us)
+blk_update_latency_hist(struct io_latency_state *s, u_int64_t delta_us)
 {
 	int i;
 
-	for (i = 0; i < ARRAY_SIZE(latency_x_axis_us); i++) {
-		if (delta_us < (u_int64_t)latency_x_axis_us[i]) {
-			if (read)
-				s->latency_y_axis_read[i]++;
-			else
-				s->latency_y_axis_write[i]++;
+	for (i = 0; i < ARRAY_SIZE(latency_x_axis_us); i++)
+		if (delta_us < (u_int64_t)latency_x_axis_us[i])
 			break;
-		}
-	}
-	if (i == ARRAY_SIZE(latency_x_axis_us)) {
-		/* Overflowed the histogram */
-		if (read)
-			s->latency_y_axis_read[i]++;
-		else
-			s->latency_y_axis_write[i]++;
-	}
-	if (read)
-		s->latency_reads_elems++;
-	else
-		s->latency_writes_elems++;
+	s->latency_y_axis[i]++;
+	s->latency_elems++;
+	s->latency_sum += delta_us;
 }
 
-void blk_zero_latency_hist(struct io_latency_state *s);
-ssize_t blk_latency_hist_show(struct io_latency_state *s, char *buf);
+ssize_t blk_latency_hist_show(char* name, struct io_latency_state *s,
+		char *buf, int buf_size);
 
 #else /* CONFIG_BLOCK */
 
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/mmc/host.h b/include/linux/mmc/host.h
index 65a188eeeeb6..34da10bff4e1 100644
--- a/include/linux/mmc/host.h
+++ b/include/linux/mmc/host.h
@@ -595,7 +595,8 @@ struct mmc_host {
 	struct mmc_request	*err_mrq;
 #ifdef CONFIG_BLOCK
 	int			latency_hist_enabled;
-	struct io_latency_state io_lat_s;
+	struct io_latency_state io_lat_read;
+	struct io_latency_state io_lat_write;
 #endif
 
 	bool sdr104_wa;
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