diff --git a/arch/arm/include/asm/stackprotector.h b/arch/arm/include/asm/stackprotector.h
index 088d03161be5..0bd4979759f1 100644
--- a/arch/arm/include/asm/stackprotector.h
+++ b/arch/arm/include/asm/stackprotector.h
@@ -15,9 +15,6 @@
 #ifndef _ASM_STACKPROTECTOR_H
 #define _ASM_STACKPROTECTOR_H 1
 
-#include <linux/random.h>
-#include <linux/version.h>
-
 #include <asm/thread_info.h>
 
 extern unsigned long __stack_chk_guard;
@@ -30,11 +27,7 @@ extern unsigned long __stack_chk_guard;
  */
 static __always_inline void boot_init_stack_canary(void)
 {
-	unsigned long canary;
-
-	/* Try to get a semi random initial value. */
-	get_random_bytes(&canary, sizeof(canary));
-	canary ^= LINUX_VERSION_CODE;
+	unsigned long canary = get_random_canary();
 
 	current->stack_canary = canary;
 #ifndef CONFIG_STACKPROTECTOR_PER_TASK
diff --git a/arch/arm64/include/asm/stackprotector.h b/arch/arm64/include/asm/stackprotector.h
index 33f1bb453150..ae3ad80f51fe 100644
--- a/arch/arm64/include/asm/stackprotector.h
+++ b/arch/arm64/include/asm/stackprotector.h
@@ -13,8 +13,6 @@
 #ifndef __ASM_STACKPROTECTOR_H
 #define __ASM_STACKPROTECTOR_H
 
-#include <linux/random.h>
-#include <linux/version.h>
 #include <asm/pointer_auth.h>
 
 extern unsigned long __stack_chk_guard;
@@ -28,12 +26,7 @@ extern unsigned long __stack_chk_guard;
 static __always_inline void boot_init_stack_canary(void)
 {
 #if defined(CONFIG_STACKPROTECTOR)
-	unsigned long canary;
-
-	/* Try to get a semi random initial value. */
-	get_random_bytes(&canary, sizeof(canary));
-	canary ^= LINUX_VERSION_CODE;
-	canary &= CANARY_MASK;
+	unsigned long canary = get_random_canary();
 
 	current->stack_canary = canary;
 	if (!IS_ENABLED(CONFIG_STACKPROTECTOR_PER_TASK))
diff --git a/arch/csky/include/asm/stackprotector.h b/arch/csky/include/asm/stackprotector.h
index d7cd4e51edd9..d23747447166 100644
--- a/arch/csky/include/asm/stackprotector.h
+++ b/arch/csky/include/asm/stackprotector.h
@@ -2,9 +2,6 @@
 #ifndef _ASM_STACKPROTECTOR_H
 #define _ASM_STACKPROTECTOR_H 1
 
-#include <linux/random.h>
-#include <linux/version.h>
-
 extern unsigned long __stack_chk_guard;
 
 /*
@@ -15,12 +12,7 @@ extern unsigned long __stack_chk_guard;
  */
 static __always_inline void boot_init_stack_canary(void)
 {
-	unsigned long canary;
-
-	/* Try to get a semi random initial value. */
-	get_random_bytes(&canary, sizeof(canary));
-	canary ^= LINUX_VERSION_CODE;
-	canary &= CANARY_MASK;
+	unsigned long canary = get_random_canary();
 
 	current->stack_canary = canary;
 	__stack_chk_guard = current->stack_canary;
diff --git a/arch/mips/include/asm/stackprotector.h b/arch/mips/include/asm/stackprotector.h
index 68d4be9e1254..518c192ad982 100644
--- a/arch/mips/include/asm/stackprotector.h
+++ b/arch/mips/include/asm/stackprotector.h
@@ -15,9 +15,6 @@
 #ifndef _ASM_STACKPROTECTOR_H
 #define _ASM_STACKPROTECTOR_H 1
 
-#include <linux/random.h>
-#include <linux/version.h>
-
 extern unsigned long __stack_chk_guard;
 
 /*
@@ -28,11 +25,7 @@ extern unsigned long __stack_chk_guard;
  */
 static __always_inline void boot_init_stack_canary(void)
 {
-	unsigned long canary;
-
-	/* Try to get a semi random initial value. */
-	get_random_bytes(&canary, sizeof(canary));
-	canary ^= LINUX_VERSION_CODE;
+	unsigned long canary = get_random_canary();
 
 	current->stack_canary = canary;
 	__stack_chk_guard = current->stack_canary;
diff --git a/arch/powerpc/include/asm/stackprotector.h b/arch/powerpc/include/asm/stackprotector.h
index 1c8460e23583..283c34647856 100644
--- a/arch/powerpc/include/asm/stackprotector.h
+++ b/arch/powerpc/include/asm/stackprotector.h
@@ -7,8 +7,6 @@
 #ifndef _ASM_STACKPROTECTOR_H
 #define _ASM_STACKPROTECTOR_H
 
-#include <linux/random.h>
-#include <linux/version.h>
 #include <asm/reg.h>
 #include <asm/current.h>
 #include <asm/paca.h>
@@ -21,13 +19,7 @@
  */
 static __always_inline void boot_init_stack_canary(void)
 {
-	unsigned long canary;
-
-	/* Try to get a semi random initial value. */
-	canary = get_random_canary();
-	canary ^= mftb();
-	canary ^= LINUX_VERSION_CODE;
-	canary &= CANARY_MASK;
+	unsigned long canary = get_random_canary();
 
 	current->stack_canary = canary;
 #ifdef CONFIG_PPC64
diff --git a/arch/riscv/include/asm/stackprotector.h b/arch/riscv/include/asm/stackprotector.h
index 09093af46565..43895b90fe3f 100644
--- a/arch/riscv/include/asm/stackprotector.h
+++ b/arch/riscv/include/asm/stackprotector.h
@@ -3,9 +3,6 @@
 #ifndef _ASM_RISCV_STACKPROTECTOR_H
 #define _ASM_RISCV_STACKPROTECTOR_H
 
-#include <linux/random.h>
-#include <linux/version.h>
-
 extern unsigned long __stack_chk_guard;
 
 /*
@@ -16,12 +13,7 @@ extern unsigned long __stack_chk_guard;
  */
 static __always_inline void boot_init_stack_canary(void)
 {
-	unsigned long canary;
-
-	/* Try to get a semi random initial value. */
-	get_random_bytes(&canary, sizeof(canary));
-	canary ^= LINUX_VERSION_CODE;
-	canary &= CANARY_MASK;
+	unsigned long canary = get_random_canary();
 
 	current->stack_canary = canary;
 	if (!IS_ENABLED(CONFIG_STACKPROTECTOR_PER_TASK))
diff --git a/arch/sh/include/asm/stackprotector.h b/arch/sh/include/asm/stackprotector.h
index 35616841d0a1..665dafac376f 100644
--- a/arch/sh/include/asm/stackprotector.h
+++ b/arch/sh/include/asm/stackprotector.h
@@ -2,9 +2,6 @@
 #ifndef __ASM_SH_STACKPROTECTOR_H
 #define __ASM_SH_STACKPROTECTOR_H
 
-#include <linux/random.h>
-#include <linux/version.h>
-
 extern unsigned long __stack_chk_guard;
 
 /*
@@ -15,12 +12,7 @@ extern unsigned long __stack_chk_guard;
  */
 static __always_inline void boot_init_stack_canary(void)
 {
-	unsigned long canary;
-
-	/* Try to get a semi random initial value. */
-	get_random_bytes(&canary, sizeof(canary));
-	canary ^= LINUX_VERSION_CODE;
-	canary &= CANARY_MASK;
+	unsigned long canary = get_random_canary();
 
 	current->stack_canary = canary;
 	__stack_chk_guard = current->stack_canary;
diff --git a/arch/x86/include/asm/stackprotector.h b/arch/x86/include/asm/stackprotector.h
index 24a8d6c4fb18..00473a650f51 100644
--- a/arch/x86/include/asm/stackprotector.h
+++ b/arch/x86/include/asm/stackprotector.h
@@ -34,7 +34,6 @@
 #include <asm/percpu.h>
 #include <asm/desc.h>
 
-#include <linux/random.h>
 #include <linux/sched.h>
 
 /*
@@ -50,22 +49,11 @@
  */
 static __always_inline void boot_init_stack_canary(void)
 {
-	u64 canary;
-	u64 tsc;
+	unsigned long canary = get_random_canary();
 
 #ifdef CONFIG_X86_64
 	BUILD_BUG_ON(offsetof(struct fixed_percpu_data, stack_canary) != 40);
 #endif
-	/*
-	 * We both use the random pool and the current TSC as a source
-	 * of randomness. The TSC only matters for very early init,
-	 * there it already has some randomness on most systems. Later
-	 * on during the bootup the random pool has true entropy too.
-	 */
-	get_random_bytes(&canary, sizeof(canary));
-	tsc = rdtsc();
-	canary += tsc + (tsc << 32UL);
-	canary &= CANARY_MASK;
 
 	current->stack_canary = canary;
 #ifdef CONFIG_X86_64
diff --git a/arch/xtensa/include/asm/stackprotector.h b/arch/xtensa/include/asm/stackprotector.h
index e368f94fd2af..e1e318a0c98a 100644
--- a/arch/xtensa/include/asm/stackprotector.h
+++ b/arch/xtensa/include/asm/stackprotector.h
@@ -14,7 +14,6 @@
 #ifndef _ASM_STACKPROTECTOR_H
 #define _ASM_STACKPROTECTOR_H 1
 
-#include <linux/random.h>
 #include <linux/version.h>
 
 extern unsigned long __stack_chk_guard;
@@ -27,11 +26,7 @@ extern unsigned long __stack_chk_guard;
  */
 static __always_inline void boot_init_stack_canary(void)
 {
-	unsigned long canary;
-
-	/* Try to get a semi random initial value. */
-	get_random_bytes(&canary, sizeof(canary));
-	canary ^= LINUX_VERSION_CODE;
+	unsigned long canary = get_random_canary();
 
 	current->stack_canary = canary;
 	__stack_chk_guard = current->stack_canary;
