diff --git a/arch/x86/Kconfig b/arch/x86/Kconfig
index e18963e..e368fc0 100644
--- a/arch/x86/Kconfig
+++ b/arch/x86/Kconfig
@@ -2446,9 +2446,27 @@ config CC_HAS_SLS
 config CC_HAS_RETURN_THUNK
 	def_bool $(cc-option,-mfunction-return=thunk-extern)
 
+config CC_HAS_ENTRY_PADDING
+	def_bool $(cc-option,-fpatchable-function-entry=16,16)
+
+config FUNCTION_PADDING_CFI
+	int
+	default 59 if FUNCTION_ALIGNMENT_64B
+	default 27 if FUNCTION_ALIGNMENT_32B
+	default 11 if FUNCTION_ALIGNMENT_16B
+	default  3 if FUNCTION_ALIGNMENT_8B
+	default  0
+
+# Basically: FUNCTION_ALIGNMENT - 5*CFI_CLANG
+# except Kconfig can't do arithmetic :/
+config FUNCTION_PADDING_BYTES
+	int
+	default FUNCTION_PADDING_CFI if CFI_CLANG
+	default FUNCTION_ALIGNMENT
+
 config HAVE_CALL_THUNKS
 	def_bool y
-	depends on RETHUNK && OBJTOOL
+	depends on CC_HAS_ENTRY_PADDING && RETHUNK && OBJTOOL
 
 config CALL_THUNKS
 	def_bool n
diff --git a/arch/x86/Makefile b/arch/x86/Makefile
index 415a5d1..1640e00 100644
--- a/arch/x86/Makefile
+++ b/arch/x86/Makefile
@@ -208,6 +208,12 @@ ifdef CONFIG_SLS
   KBUILD_CFLAGS += -mharden-sls=all
 endif
 
+ifdef CONFIG_CALL_THUNKS
+PADDING_CFLAGS := -fpatchable-function-entry=$(CONFIG_FUNCTION_PADDING_BYTES),$(CONFIG_FUNCTION_PADDING_BYTES)
+KBUILD_CFLAGS += $(PADDING_CFLAGS)
+export PADDING_CFLAGS
+endif
+
 KBUILD_LDFLAGS += -m elf_$(UTS_MACHINE)
 
 ifdef CONFIG_LTO_CLANG
diff --git a/arch/x86/entry/vdso/Makefile b/arch/x86/entry/vdso/Makefile
index 3ef6110..838613a 100644
--- a/arch/x86/entry/vdso/Makefile
+++ b/arch/x86/entry/vdso/Makefile
@@ -95,7 +95,7 @@ ifneq ($(RETPOLINE_VDSO_CFLAGS),)
 endif
 endif
 
-$(vobjs): KBUILD_CFLAGS := $(filter-out $(CC_FLAGS_LTO) $(CC_FLAGS_CFI) $(RANDSTRUCT_CFLAGS) $(GCC_PLUGINS_CFLAGS) $(RETPOLINE_CFLAGS),$(KBUILD_CFLAGS)) $(CFL)
+$(vobjs): KBUILD_CFLAGS := $(filter-out $(PADDING_CFLAGS) $(CC_FLAGS_LTO) $(CC_FLAGS_CFI) $(RANDSTRUCT_CFLAGS) $(GCC_PLUGINS_CFLAGS) $(RETPOLINE_CFLAGS),$(KBUILD_CFLAGS)) $(CFL)
 $(vobjs): KBUILD_AFLAGS += -DBUILD_VDSO
 
 #
@@ -158,6 +158,7 @@ KBUILD_CFLAGS_32 := $(filter-out $(GCC_PLUGINS_CFLAGS),$(KBUILD_CFLAGS_32))
 KBUILD_CFLAGS_32 := $(filter-out $(RETPOLINE_CFLAGS),$(KBUILD_CFLAGS_32))
 KBUILD_CFLAGS_32 := $(filter-out $(CC_FLAGS_LTO),$(KBUILD_CFLAGS_32))
 KBUILD_CFLAGS_32 := $(filter-out $(CC_FLAGS_CFI),$(KBUILD_CFLAGS_32))
+KBUILD_CFLAGS_32 := $(filter-out $(PADDING_CFLAGS),$(KBUILD_CFLAGS_32))
 KBUILD_CFLAGS_32 += -m32 -msoft-float -mregparm=0 -fpic
 KBUILD_CFLAGS_32 += -fno-stack-protector
 KBUILD_CFLAGS_32 += $(call cc-option, -foptimize-sibling-calls)
diff --git a/arch/x86/include/asm/linkage.h b/arch/x86/include/asm/linkage.h
index c2d6e27..45e0df8 100644
--- a/arch/x86/include/asm/linkage.h
+++ b/arch/x86/include/asm/linkage.h
@@ -15,8 +15,19 @@
 #define __ALIGN		.balign CONFIG_FUNCTION_ALIGNMENT, 0x90;
 #define __ALIGN_STR	__stringify(__ALIGN)
 
-#define ASM_FUNC_ALIGN		__ALIGN_STR
-#define __FUNC_ALIGN		__ALIGN
+#if defined(CONFIG_CALL_THUNKS) && !defined(__DISABLE_EXPORTS) && !defined(BUILD_VDSO)
+#define FUNCTION_PADDING	.skip CONFIG_FUNCTION_ALIGNMENT, 0x90;
+#else
+#define FUNCTION_PADDING
+#endif
+
+#if (CONFIG_FUNCTION_ALIGNMENT > 8) && !defined(__DISABLE_EXPORTS) && !defined(BULID_VDSO)
+# define __FUNC_ALIGN		__ALIGN; FUNCTION_PADDING
+#else
+# define __FUNC_ALIGN		__ALIGN
+#endif
+
+#define ASM_FUNC_ALIGN		__stringify(__FUNC_ALIGN)
 #define SYM_F_ALIGN		__FUNC_ALIGN
 
 #ifdef __ASSEMBLY__
@@ -45,11 +56,45 @@
 
 #endif /* __ASSEMBLY__ */
 
+/*
+ * Depending on -fpatchable-function-entry=N,N usage (CONFIG_CALL_THUNKS) the
+ * CFI symbol layout changes.
+ *
+ * Without CALL_THUNKS:
+ *
+ * 	.align	FUNCTION_ALIGNMENT
+ * __cfi_##name:
+ * 	.skip	FUNCTION_PADDING, 0x90
+ * 	.byte   0xb8
+ * 	.long	__kcfi_typeid_##name
+ * name:
+ *
+ * With CALL_THUNKS:
+ *
+ * 	.align FUNCTION_ALIGNMENT
+ * __cfi_##name:
+ * 	.byte	0xb8
+ * 	.long	__kcfi_typeid_##name
+ * 	.skip	FUNCTION_PADDING, 0x90
+ * name:
+ *
+ * In both cases the whole thing is FUNCTION_ALIGNMENT aligned and sized.
+ */
+
+#ifdef CONFIG_CALL_THUNKS
+#define CFI_PRE_PADDING
+#define CFI_POST_PADDING	.skip	CONFIG_FUNCTION_PADDING_BYTES, 0x90;
+#else
+#define CFI_PRE_PADDING		.skip	CONFIG_FUNCTION_PADDING_BYTES, 0x90;
+#define CFI_POST_PADDING
+#endif
+
 #define __CFI_TYPE(name)					\
 	SYM_START(__cfi_##name, SYM_L_LOCAL, SYM_A_NONE)	\
-	.fill 11, 1, 0x90 ASM_NL				\
+	CFI_PRE_PADDING						\
 	.byte 0xb8 ASM_NL					\
 	.long __kcfi_typeid_##name ASM_NL			\
+	CFI_POST_PADDING					\
 	SYM_FUNC_END(__cfi_##name)
 
 /* SYM_TYPED_FUNC_START -- use for indirectly called globals, w/ CFI type */
diff --git a/include/linux/bpf.h b/include/linux/bpf.h
index 9e7d46d..5296aea 100644
--- a/include/linux/bpf.h
+++ b/include/linux/bpf.h
@@ -984,7 +984,11 @@ int arch_prepare_bpf_dispatcher(void *image, void *buf, s64 *funcs, int num_func
 }
 
 #ifdef CONFIG_X86_64
+#ifdef CONFIG_CALL_THUNKS
+#define BPF_DISPATCHER_ATTRIBUTES __attribute__((patchable_function_entry(5+CONFIG_FUNCTION_PADDING_BYTES,CONFIG_FUNCTION_PADDING_BYTES)))
+#else
 #define BPF_DISPATCHER_ATTRIBUTES __attribute__((patchable_function_entry(5)))
+#endif
 #else
 #define BPF_DISPATCHER_ATTRIBUTES
 #endif
