6 files changed, 38 insertions, 24 deletions
diff --git a/include/asm-generic/barrier.h b/include/asm-generic/barrier.h
index 0c0695763bea..d4f581c1e21d 100644
--- a/include/asm-generic/barrier.h
+++ b/include/asm-generic/barrier.h
@@ -294,5 +294,13 @@ do {									\
 #define io_stop_wc() do { } while (0)
 #endif
 
+/*
+ * Architectures that guarantee an implicit smp_mb() in switch_mm()
+ * can override smp_mb__after_switch_mm.
+ */
+#ifndef smp_mb__after_switch_mm
+# define smp_mb__after_switch_mm()	smp_mb()
+#endif
+
 #endif /* !__ASSEMBLY__ */
 #endif /* __ASM_GENERIC_BARRIER_H */
diff --git a/include/asm-generic/bug.h b/include/asm-generic/bug.h
index 6e794420bd39..b7de3a4eade1 100644
--- a/include/asm-generic/bug.h
+++ b/include/asm-generic/bug.h
@@ -156,7 +156,10 @@ extern __printf(1, 2) void __warn_printk(const char *fmt, ...);
 
 #else /* !CONFIG_BUG */
 #ifndef HAVE_ARCH_BUG
-#define BUG() do {} while (1)
+#define BUG() do {		\
+	do {} while (1);	\
+	unreachable();		\
+} while (0)
 #endif
 
 #ifndef HAVE_ARCH_BUG_ON
diff --git a/include/asm-generic/export.h b/include/asm-generic/export.h
deleted file mode 100644
index 570cd4da7210..000000000000
--- a/include/asm-generic/export.h
+++ /dev/null
@@ -1,11 +0,0 @@
-/* SPDX-License-Identifier: GPL-2.0-only */
-#ifndef __ASM_GENERIC_EXPORT_H
-#define __ASM_GENERIC_EXPORT_H
-
-/*
- * <asm/export.h> and <asm-generic/export.h> are deprecated.
- * Please include <linux/export.h> directly.
- */
-#include <linux/export.h>
-
-#endif
diff --git a/include/asm-generic/hyperv-tlfs.h b/include/asm-generic/hyperv-tlfs.h
index 87e3d49a4e29..814207e7c37f 100644
--- a/include/asm-generic/hyperv-tlfs.h
+++ b/include/asm-generic/hyperv-tlfs.h
@@ -512,13 +512,9 @@ struct hv_proximity_domain_flags {
 	u32 proximity_info_valid : 1;
 } __packed;
 
-/* Not a union in windows but useful for zeroing */
-union hv_proximity_domain_info {
-	struct {
-		u32 domain_id;
-		struct hv_proximity_domain_flags flags;
-	};
-	u64 as_uint64;
+struct hv_proximity_domain_info {
+	u32 domain_id;
+	struct hv_proximity_domain_flags flags;
 } __packed;
 
 struct hv_lp_startup_status {
@@ -532,14 +528,13 @@ struct hv_lp_startup_status {
 } __packed;
 
 /* HvAddLogicalProcessor hypercall */
-struct hv_add_logical_processor_in {
+struct hv_input_add_logical_processor {
 	u32 lp_index;
 	u32 apic_id;
-	union hv_proximity_domain_info proximity_domain_info;
-	u64 flags;
+	struct hv_proximity_domain_info proximity_domain_info;
 } __packed;
 
-struct hv_add_logical_processor_out {
+struct hv_output_add_logical_processor {
 	struct hv_lp_startup_status startup_status;
 } __packed;
 
@@ -560,7 +555,7 @@ struct hv_create_vp {
 	u8 padding[3];
 	u8 subnode_type;
 	u64 subnode_id;
-	union hv_proximity_domain_info proximity_domain_info;
+	struct hv_proximity_domain_info proximity_domain_info;
 	u64 flags;
 } __packed;
 
diff --git a/include/asm-generic/mshyperv.h b/include/asm-generic/mshyperv.h
index 99935779682d..8fe7aaab2599 100644
--- a/include/asm-generic/mshyperv.h
+++ b/include/asm-generic/mshyperv.h
@@ -21,6 +21,7 @@
 #include <linux/types.h>
 #include <linux/atomic.h>
 #include <linux/bitops.h>
+#include <acpi/acpi_numa.h>
 #include <linux/cpumask.h>
 #include <linux/nmi.h>
 #include <asm/ptrace.h>
@@ -67,6 +68,19 @@ extern u64 hv_do_fast_hypercall8(u16 control, u64 input8);
 bool hv_isolation_type_snp(void);
 bool hv_isolation_type_tdx(void);
 
+static inline struct hv_proximity_domain_info hv_numa_node_to_pxm_info(int node)
+{
+	struct hv_proximity_domain_info pxm_info = {};
+
+	if (node != NUMA_NO_NODE) {
+		pxm_info.domain_id = node_to_pxm(node);
+		pxm_info.flags.proximity_info_valid = 1;
+		pxm_info.flags.proximity_preferred = 1;
+	}
+
+	return pxm_info;
+}
+
 /* Helper functions that provide a consistent pattern for checking Hyper-V hypercall status. */
 static inline int hv_result(u64 status)
 {
diff --git a/include/asm-generic/sections.h b/include/asm-generic/sections.h
index db13bb620f52..c768de6f19a9 100644
--- a/include/asm-generic/sections.h
+++ b/include/asm-generic/sections.h
@@ -180,6 +180,11 @@ static inline bool is_kernel_rodata(unsigned long addr)
 	       addr < (unsigned long)__end_rodata;
 }
 
+static inline bool is_kernel_ro_after_init(unsigned long addr)
+{
+	return addr >= (unsigned long)__start_ro_after_init &&
+	       addr < (unsigned long)__end_ro_after_init;
+}
 /**
  * is_kernel_inittext - checks if the pointer address is located in the
  *                      .init.text section