Merge tag 'arm64-upstream' of git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux

Pull arm64 updates from Will Deacon:
 "Mostly just incremental improvements here:

   - Introduce AT_HWCAP2 for advertising CPU features to userspace

   - Expose SVE2 availability to userspace

   - Support for "data cache clean to point of deep persistence" (DC PODP)

   - Honour "mitigations=off" on the cmdline and advertise status via
     sysfs

   - CPU timer erratum workaround (Neoverse-N1 #1188873)

   - Introduce perf PMU driver for the SMMUv3 performance counters

   - Add config option to disable the kuser helpers page for AArch32 tasks

   - Futex modifications to ensure liveness under contention

   - Rework debug exception handling to seperate kernel and user
     handlers

   - Non-critical fixes and cleanup"

* tag 'arm64-upstream' of git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux: (92 commits)
  Documentation: Add ARM64 to kernel-parameters.rst
  arm64/speculation: Support 'mitigations=' cmdline option
  arm64: ssbs: Don't treat CPUs with SSBS as unaffected by SSB
  arm64: enable generic CPU vulnerabilites support
  arm64: add sysfs vulnerability show for speculative store bypass
  arm64: Fix size of __early_cpu_boot_status
  clocksource/arm_arch_timer: Use arch_timer_read_counter to access stable counters
  clocksource/arm_arch_timer: Remove use of workaround static key
  clocksource/arm_arch_timer: Drop use of static key in arch_timer_reg_read_stable
  clocksource/arm_arch_timer: Direcly assign set_next_event workaround
  arm64: Use arch_timer_read_counter instead of arch_counter_get_cntvct
  watchdog/sbsa: Use arch_timer_read_counter instead of arch_counter_get_cntvct
  ARM: vdso: Remove dependency with the arch_timer driver internals
  arm64: Apply ARM64_ERRATUM_1188873 to Neoverse-N1
  arm64: Add part number for Neoverse N1
  arm64: Make ARM64_ERRATUM_1188873 depend on COMPAT
  arm64: Restrict ARM64_ERRATUM_1188873 mitigation to AArch32
  arm64: mm: Remove pte_unmap_nested()
  arm64: Fix compiler warning from pte_unmap() with -Wunused-but-set-variable
  arm64: compat: Reduce address limit for 64K pages
  ...

1 files changed, 12 insertions, 13 deletions

diff --git a/arch/arm64/mm/numa.c b/arch/arm64/mm/numa.c
index 06a6f264f2dd..5202f63c29c9 100644
--- a/arch/arm64/mm/numa.c
+++ b/arch/arm64/mm/numa.c
@@ -124,7 +124,7 @@ static void __init setup_node_to_cpumask_map(void)
 }
 
 /*
- *  Set the cpu to node and mem mapping
+ * Set the cpu to node and mem mapping
  */
 void numa_store_cpu_info(unsigned int cpu)
 {
@@ -200,7 +200,7 @@ void __init setup_per_cpu_areas(void)
 #endif
 
 /**
- * numa_add_memblk - Set node id to memblk
+ * numa_add_memblk() - Set node id to memblk
  * @nid: NUMA node ID of the new memblk
  * @start: Start address of the new memblk
  * @end:  End address of the new memblk
@@ -223,7 +223,7 @@ int __init numa_add_memblk(int nid, u64 start, u64 end)
 	return ret;
 }
 
-/**
+/*
  * Initialize NODE_DATA for a node on the local memory
  */
 static void __init setup_node_data(int nid, u64 start_pfn, u64 end_pfn)
@@ -257,7 +257,7 @@ static void __init setup_node_data(int nid, u64 start_pfn, u64 end_pfn)
 	NODE_DATA(nid)->node_spanned_pages = end_pfn - start_pfn;
 }
 
-/**
+/*
  * numa_free_distance
  *
  * The current table is freed.
@@ -277,10 +277,8 @@ void __init numa_free_distance(void)
 	numa_distance = NULL;
 }
 
-/**
- *
+/*
  * Create a new NUMA distance table.
- *
  */
 static int __init numa_alloc_distance(void)
 {
@@ -311,7 +309,7 @@ static int __init numa_alloc_distance(void)
 }
 
 /**
- * numa_set_distance - Set inter node NUMA distance from node to node.
+ * numa_set_distance() - Set inter node NUMA distance from node to node.
  * @from: the 'from' node to set distance
  * @to: the 'to'  node to set distance
  * @distance: NUMA distance
@@ -321,7 +319,6 @@ static int __init numa_alloc_distance(void)
  *
  * If @from or @to is higher than the highest known node or lower than zero
  * or @distance doesn't make sense, the call is ignored.
- *
  */
 void __init numa_set_distance(int from, int to, int distance)
 {
@@ -347,7 +344,7 @@ void __init numa_set_distance(int from, int to, int distance)
 	numa_distance[from * numa_distance_cnt + to] = distance;
 }
 
-/**
+/*
  * Return NUMA distance @from to @to
  */
 int __node_distance(int from, int to)
@@ -422,13 +419,15 @@ out_free_distance:
 }
 
 /**
- * dummy_numa_init - Fallback dummy NUMA init
+ * dummy_numa_init() - Fallback dummy NUMA init
  *
  * Used if there's no underlying NUMA architecture, NUMA initialization
  * fails, or NUMA is disabled on the command line.
  *
  * Must online at least one node (node 0) and add memory blocks that cover all
  * allowed memory. It is unlikely that this function fails.
+ *
+ * Return: 0 on success, -errno on failure.
  */
 static int __init dummy_numa_init(void)
 {
@@ -454,9 +453,9 @@ static int __init dummy_numa_init(void)
 }
 
 /**
- * arm64_numa_init - Initialize NUMA
+ * arm64_numa_init() - Initialize NUMA
  *
- * Try each configured NUMA initialization method until one succeeds.  The
+ * Try each configured NUMA initialization method until one succeeds. The
  * last fallback is dummy single node config encomapssing whole memory.
  */
 void __init arm64_numa_init(void)