11 files changed, 58 insertions, 14 deletions
diff --git a/include/asm-generic/bitops/__ffs.h b/include/asm-generic/bitops/__ffs.h
index 2d08c750c8a7..3a899c626fdc 100644
--- a/include/asm-generic/bitops/__ffs.h
+++ b/include/asm-generic/bitops/__ffs.h
@@ -10,7 +10,7 @@
  *
  * Undefined if no bit exists, so code should check against 0 first.
  */
-static __always_inline unsigned int generic___ffs(unsigned long word)
+static __always_inline __attribute_const__ unsigned int generic___ffs(unsigned long word)
 {
 	unsigned int num = 0;
 
diff --git a/include/asm-generic/bitops/__fls.h b/include/asm-generic/bitops/__fls.h
index e974ec932ec1..35f33780ca6c 100644
--- a/include/asm-generic/bitops/__fls.h
+++ b/include/asm-generic/bitops/__fls.h
@@ -10,7 +10,7 @@
  *
  * Undefined if no set bit exists, so code should check against 0 first.
  */
-static __always_inline unsigned int generic___fls(unsigned long word)
+static __always_inline __attribute_const__ unsigned int generic___fls(unsigned long word)
 {
 	unsigned int num = BITS_PER_LONG - 1;
 
diff --git a/include/asm-generic/bitops/builtin-__ffs.h b/include/asm-generic/bitops/builtin-__ffs.h
index cf4b3d33bf96..d3c3f567045d 100644
--- a/include/asm-generic/bitops/builtin-__ffs.h
+++ b/include/asm-generic/bitops/builtin-__ffs.h
@@ -8,7 +8,7 @@
  *
  * Undefined if no bit exists, so code should check against 0 first.
  */
-static __always_inline unsigned int __ffs(unsigned long word)
+static __always_inline __attribute_const__ unsigned int __ffs(unsigned long word)
 {
 	return __builtin_ctzl(word);
 }
diff --git a/include/asm-generic/bitops/builtin-__fls.h b/include/asm-generic/bitops/builtin-__fls.h
index 6d72fc8a5259..7770c4f1bfcd 100644
--- a/include/asm-generic/bitops/builtin-__fls.h
+++ b/include/asm-generic/bitops/builtin-__fls.h
@@ -8,7 +8,7 @@
  *
  * Undefined if no set bit exists, so code should check against 0 first.
  */
-static __always_inline unsigned int __fls(unsigned long word)
+static __always_inline __attribute_const__ unsigned int __fls(unsigned long word)
 {
 	return (sizeof(word) * 8) - 1 - __builtin_clzl(word);
 }
diff --git a/include/asm-generic/bitops/builtin-fls.h b/include/asm-generic/bitops/builtin-fls.h
index c8455cc28841..be707da8c7cd 100644
--- a/include/asm-generic/bitops/builtin-fls.h
+++ b/include/asm-generic/bitops/builtin-fls.h
@@ -9,7 +9,7 @@
  * This is defined the same way as ffs.
  * Note fls(0) = 0, fls(1) = 1, fls(0x80000000) = 32.
  */
-static __always_inline int fls(unsigned int x)
+static __always_inline __attribute_const__ int fls(unsigned int x)
 {
 	return x ? sizeof(x) * 8 - __builtin_clz(x) : 0;
 }
diff --git a/include/asm-generic/bitops/ffs.h b/include/asm-generic/bitops/ffs.h
index 4c43f242daeb..5ff2b7fbda6d 100644
--- a/include/asm-generic/bitops/ffs.h
+++ b/include/asm-generic/bitops/ffs.h
@@ -10,7 +10,7 @@
  * the libc and compiler builtin ffs routines, therefore
  * differs in spirit from ffz (man ffs).
  */
-static inline int generic_ffs(int x)
+static inline __attribute_const__ int generic_ffs(int x)
 {
 	int r = 1;
 
diff --git a/include/asm-generic/bitops/fls.h b/include/asm-generic/bitops/fls.h
index 26f3ce1dd6e4..8eed3437edb9 100644
--- a/include/asm-generic/bitops/fls.h
+++ b/include/asm-generic/bitops/fls.h
@@ -10,7 +10,7 @@
  * Note fls(0) = 0, fls(1) = 1, fls(0x80000000) = 32.
  */
 
-static __always_inline int generic_fls(unsigned int x)
+static __always_inline __attribute_const__ int generic_fls(unsigned int x)
 {
 	int r = 32;
 
diff --git a/include/asm-generic/bitops/fls64.h b/include/asm-generic/bitops/fls64.h
index 866f2b2304ff..b5f58dd261a3 100644
--- a/include/asm-generic/bitops/fls64.h
+++ b/include/asm-generic/bitops/fls64.h
@@ -16,7 +16,7 @@
  * at position 64.
  */
 #if BITS_PER_LONG == 32
-static __always_inline int fls64(__u64 x)
+static __always_inline __attribute_const__ int fls64(__u64 x)
 {
 	__u32 h = x >> 32;
 	if (h)
@@ -24,7 +24,7 @@ static __always_inline int fls64(__u64 x)
 	return fls(x);
 }
 #elif BITS_PER_LONG == 64
-static __always_inline int fls64(__u64 x)
+static __always_inline __attribute_const__ int fls64(__u64 x)
 {
 	if (x == 0)
 		return 0;
diff --git a/include/asm-generic/thread_info_tif.h b/include/asm-generic/thread_info_tif.h
new file mode 100644
index 000000000000..ee3793e9b1a4
--- /dev/null
+++ b/include/asm-generic/thread_info_tif.h
@@ -0,0 +1,48 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+#ifndef _ASM_GENERIC_THREAD_INFO_TIF_H_
+#define _ASM_GENERIC_THREAD_INFO_TIF_H_
+
+#include <vdso/bits.h>
+
+/* Bits 16-31 are reserved for architecture specific purposes */
+
+#define TIF_NOTIFY_RESUME	0	// callback before returning to user
+#define _TIF_NOTIFY_RESUME	BIT(TIF_NOTIFY_RESUME)
+
+#define TIF_SIGPENDING		1	// signal pending
+#define _TIF_SIGPENDING		BIT(TIF_SIGPENDING)
+
+#define TIF_NOTIFY_SIGNAL	2	// signal notifications exist
+#define _TIF_NOTIFY_SIGNAL	BIT(TIF_NOTIFY_SIGNAL)
+
+#define TIF_MEMDIE		3	// is terminating due to OOM killer
+#define _TIF_MEMDIE		BIT(TIF_MEMDIE)
+
+#define TIF_NEED_RESCHED	4	// rescheduling necessary
+#define _TIF_NEED_RESCHED	BIT(TIF_NEED_RESCHED)
+
+#ifdef HAVE_TIF_NEED_RESCHED_LAZY
+# define TIF_NEED_RESCHED_LAZY	5	// Lazy rescheduling needed
+# define _TIF_NEED_RESCHED_LAZY	BIT(TIF_NEED_RESCHED_LAZY)
+#endif
+
+#ifdef HAVE_TIF_POLLING_NRFLAG
+# define TIF_POLLING_NRFLAG	6	// idle is polling for TIF_NEED_RESCHED
+# define _TIF_POLLING_NRFLAG	BIT(TIF_POLLING_NRFLAG)
+#endif
+
+#define TIF_USER_RETURN_NOTIFY	7	// notify kernel of userspace return
+#define _TIF_USER_RETURN_NOTIFY	BIT(TIF_USER_RETURN_NOTIFY)
+
+#define TIF_UPROBE		8	// breakpointed or singlestepping
+#define _TIF_UPROBE		BIT(TIF_UPROBE)
+
+#define TIF_PATCH_PENDING	9	// pending live patching update
+#define _TIF_PATCH_PENDING	BIT(TIF_PATCH_PENDING)
+
+#ifdef HAVE_TIF_RESTORE_SIGMASK
+# define TIF_RESTORE_SIGMASK	10	// Restore signal mask in do_signal() */
+# define _TIF_RESTORE_SIGMASK	BIT(TIF_RESTORE_SIGMASK)
+#endif
+
+#endif /* _ASM_GENERIC_THREAD_INFO_TIF_H_ */
diff --git a/include/asm-generic/vdso/vsyscall.h b/include/asm-generic/vdso/vsyscall.h
index 7fc0b560007d..5c6d9799f4e7 100644
--- a/include/asm-generic/vdso/vsyscall.h
+++ b/include/asm-generic/vdso/vsyscall.h
@@ -4,8 +4,6 @@
 
 #ifndef __ASSEMBLY__
 
-#ifdef CONFIG_GENERIC_VDSO_DATA_STORE
-
 #ifndef __arch_get_vdso_u_time_data
 static __always_inline const struct vdso_time_data *__arch_get_vdso_u_time_data(void)
 {
@@ -20,8 +18,6 @@ static __always_inline const struct vdso_rng_data *__arch_get_vdso_u_rng_data(vo
 }
 #endif
 
-#endif /* CONFIG_GENERIC_VDSO_DATA_STORE */
-
 #ifndef __arch_update_vdso_clock
 static __always_inline void __arch_update_vdso_clock(struct vdso_clock *vc)
 {
diff --git a/include/asm-generic/vmlinux.lds.h b/include/asm-generic/vmlinux.lds.h
index ae2d2359b79e..a65a87366c48 100644
--- a/include/asm-generic/vmlinux.lds.h
+++ b/include/asm-generic/vmlinux.lds.h
@@ -157,7 +157,7 @@ defined(CONFIG_AUTOFDO_CLANG) || defined(CONFIG_PROPELLER_CLANG)
 #define PATCHABLE_DISCARDS	*(__patchable_function_entries)
 #endif
 
-#ifndef CONFIG_ARCH_SUPPORTS_CFI_CLANG
+#ifndef CONFIG_ARCH_SUPPORTS_CFI
 /*
  * Simply points to ftrace_stub, but with the proper protocol.
  * Defined by the linker script in linux/vmlinux.lds.h