Merge branch 'android-4.19-stable' of https://android.googlesource.com/kernel/common into android-feature-ti-linux-4.19.yandroid-feature-ti-linux-4.19.y

* 'android-4.19-stable' of https://android.googlesource.com/kernel/common: (2862 commits)
  ANDROID: GKI: Update the ABI xml representation
  ANDROID: Incremental fs: Set credentials before reading/writing
  ANDROID: Incremental fs: Fix incfs_test use of atol, open
  ANDROID: Incremental fs: Change per UID timeouts to microseconds
  ANDROID: Incremental fs: Add v2 feature flag
  ANDROID: Incremental fs: Add zstd feature flag
  Linux 4.19.163
  Revert "geneve: pull IP header before ECN decapsulation"
  x86/insn-eval: Use new for_each_insn_prefix() macro to loop over prefixes bytes
  netfilter: nf_tables: avoid false-postive lockdep splat
  Input: i8042 - fix error return code in i8042_setup_aux()
  dm writecache: remove BUG() and fail gracefully instead
  i2c: qup: Fix error return code in qup_i2c_bam_schedule_desc()
  gfs2: check for empty rgrp tree in gfs2_ri_update
  tracing: Fix userstacktrace option for instances
  spi: bcm2835: Release the DMA channel if probe fails after dma_init
  spi: bcm2835: Fix use-after-free on unbind
  spi: bcm-qspi: Fix use-after-free on unbind
  spi: Introduce device-managed SPI controller allocation
  iommu/amd: Set DTE[IntTabLen] to represent 512 IRTEs
  ...

Signed-off-by: Praneeth Bajjuri <praneeth@ti.com>

2398 files changed, 132175 insertions, 74122 deletions

diff --git a/Documentation/ABI/testing/sysfs-bus-iio b/Documentation/ABI/testing/sysfs-bus-iio
index 8127a08e366d..d10bcca6c3fb 100644
--- a/Documentation/ABI/testing/sysfs-bus-iio
+++ b/Documentation/ABI/testing/sysfs-bus-iio
@@ -1559,7 +1559,8 @@ What:		/sys/bus/iio/devices/iio:deviceX/in_concentrationX_voc_raw
 KernelVersion:  4.3
 Contact:        linux-iio@vger.kernel.org
 Description:
-                Raw (unscaled no offset etc.) percentage reading of a substance.
+                Raw (unscaled no offset etc.) reading of a substance. Units
+                after application of scale and offset are percents.
 
 What:           /sys/bus/iio/devices/iio:deviceX/in_resistance_raw
 What:           /sys/bus/iio/devices/iio:deviceX/in_resistanceX_raw
diff --git a/Documentation/admin-guide/kernel-parameters.txt b/Documentation/admin-guide/kernel-parameters.txt
index b2678cf459e4..8a9236c653dd 100644
--- a/Documentation/admin-guide/kernel-parameters.txt
+++ b/Documentation/admin-guide/kernel-parameters.txt
@@ -490,10 +490,14 @@
                         cut the overhead, others just disable the usage. So
                         only cgroup_disable=memory is actually worthy}
 
-        cgroup_no_v1=   [KNL] Disable one, multiple, all cgroup controllers in v1
-                        Format: { controller[,controller...] | "all" }
+        cgroup_no_v1=   [KNL] Disable cgroup controllers and named hierarchies in v1
+                        Format: { { controller | "all" | "named" }
+                                  [,{ controller | "all" | "named" }...] }
                         Like cgroup_disable, but only applies to cgroup v1;
                         the blacklisted controllers remain available in cgroup2.
+                        "all" blacklists all controllers and "named" disables
+                        named mounts. Specifying both "all" and "named" disables
+                        all v1 hierarchies.
 
         cgroup.memory=  [KNL] Pass options to the cgroup memory controller.
                         Format: <string>
@@ -558,7 +562,7 @@
                         loops can be debugged more effectively on production
                         systems.
 
-        clearcpuid=BITNUM [X86]
+        clearcpuid=BITNUM[,BITNUM...] [X86]
                         Disable CPUID feature X for the kernel. See
                         arch/x86/include/asm/cpufeatures.h for the valid bit
                         numbers. Note the Linux specific bits are not necessarily
@@ -2569,6 +2573,8 @@
                                                mds=off [X86]
                                                tsx_async_abort=off [X86]
                                                kvm.nx_huge_pages=off [X86]
+                                               no_entry_flush [PPC]
+                                               no_uaccess_flush [PPC]
 
                                 Exceptions:
                                                This does not have any effect on
@@ -2879,6 +2885,8 @@
 
         noefi           Disable EFI runtime services support.
 
+        no_entry_flush  [PPC] Don't flush the L1-D cache when entering the kernel.
+
         noexec          [IA-64]
 
         noexec          [X86]
@@ -2928,6 +2936,9 @@
         nospec_store_bypass_disable
                         [HW] Disable all mitigations for the Speculative Store Bypass vulnerability
 
+        no_uaccess_flush
+                        [PPC] Don't flush the L1-D cache after accessing user data.
+
         noxsave         [BUGS=X86] Disables x86 extended register state save
                         and restore using xsave. The kernel will fallback to
                         enabling legacy floating-point and sse state.
@@ -5291,6 +5302,14 @@
                         with /sys/devices/system/xen_memory/xen_memory0/scrub_pages.
                         Default value controlled with CONFIG_XEN_SCRUB_PAGES_DEFAULT.