diff --git a/arch/arm/include/asm/stackprotector.h b/arch/arm/include/asm/stackprotector.h
index 72a20c3a0a90b..88c66fec1b5f4 100644
--- a/arch/arm/include/asm/stackprotector.h
+++ b/arch/arm/include/asm/stackprotector.h
@@ -30,17 +30,14 @@ 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
-	__stack_chk_guard = current->stack_canary;
+	__stack_chk_guard = canary;
 #else
-	current_thread_info()->stack_canary = current->stack_canary;
+	current_thread_info()->stack_canary = canary;
 #endif
 }
 
diff --git a/arch/arm64/include/asm/stackprotector.h b/arch/arm64/include/asm/stackprotector.h
index 5884a2b028277..705f60b9df85e 100644
--- a/arch/arm64/include/asm/stackprotector.h
+++ b/arch/arm64/include/asm/stackprotector.h
@@ -26,16 +26,12 @@ 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))
-		__stack_chk_guard = current->stack_canary;
+		__stack_chk_guard = canary;
 }
 
 #endif	/* _ASM_STACKPROTECTOR_H */
diff --git a/arch/mips/include/asm/stackprotector.h b/arch/mips/include/asm/stackprotector.h
index 68d4be9e12547..6d1e4652152bc 100644
--- a/arch/mips/include/asm/stackprotector.h
+++ b/arch/mips/include/asm/stackprotector.h
@@ -28,14 +28,11 @@ 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;
+	__stack_chk_guard = canary;
 }
 
 #endif	/* _ASM_STACKPROTECTOR_H */
diff --git a/arch/powerpc/include/asm/stackprotector.h b/arch/powerpc/include/asm/stackprotector.h
index 1c8460e235838..76577b72ef736 100644
--- a/arch/powerpc/include/asm/stackprotector.h
+++ b/arch/powerpc/include/asm/stackprotector.h
@@ -21,12 +21,10 @@
  */
 static __always_inline void boot_init_stack_canary(void)
 {
-	unsigned long canary;
-
 	/* Try to get a semi random initial value. */
-	canary = get_random_canary();
+	unsigned long canary = get_random_long();
+
 	canary ^= mftb();
-	canary ^= LINUX_VERSION_CODE;
 	canary &= CANARY_MASK;
 
 	current->stack_canary = canary;
diff --git a/arch/sh/include/asm/stackprotector.h b/arch/sh/include/asm/stackprotector.h
index 35616841d0a1c..a9ef619c8a0ec 100644
--- a/arch/sh/include/asm/stackprotector.h
+++ b/arch/sh/include/asm/stackprotector.h
@@ -15,15 +15,11 @@ 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;
+	__stack_chk_guard = canary;
 }
 
 #endif /* __ASM_SH_STACKPROTECTOR_H */
diff --git a/arch/x86/include/asm/stackprotector.h b/arch/x86/include/asm/stackprotector.h
index 91e29b6a86a5e..af74fd3130cf4 100644
--- a/arch/x86/include/asm/stackprotector.h
+++ b/arch/x86/include/asm/stackprotector.h
@@ -72,9 +72,9 @@ static __always_inline void boot_init_stack_canary(void)
 	 * 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));
+	canary = get_random_u64();
 	tsc = rdtsc();
-	canary += tsc + (tsc << 32UL);
+	canary += tsc + (tsc << 32);
 	canary &= CANARY_MASK;
 
 	current->stack_canary = canary;
diff --git a/arch/xtensa/include/asm/stackprotector.h b/arch/xtensa/include/asm/stackprotector.h
index e368f94fd2af3..9807fd80e5a8e 100644
--- a/arch/xtensa/include/asm/stackprotector.h
+++ b/arch/xtensa/include/asm/stackprotector.h
@@ -27,14 +27,11 @@ 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;
+	__stack_chk_guard = canary;
 }
 
 #endif	/* _ASM_STACKPROTECTOR_H */
