diff --git a/xen/arch/x86/cpu/amd.c b/xen/arch/x86/cpu/amd.c
index 597b0f073d..32bb5792ca 100644
--- a/xen/arch/x86/cpu/amd.c
+++ b/xen/arch/x86/cpu/amd.c
@@ -913,7 +913,7 @@ void __init detect_zen2_null_seg_behaviour(void)
 
 }
 
-void amd_check_zenbleed(void)
+static void amd_check_zenbleed(void)
 {
 	const struct cpu_signature *sig = &this_cpu(cpu_sig);
 	unsigned int good_rev;
diff --git a/xen/arch/x86/cpu/microcode/amd.c b/xen/arch/x86/cpu/microcode/amd.c
index 0b51796791..995a050e52 100644
--- a/xen/arch/x86/cpu/microcode/amd.c
+++ b/xen/arch/x86/cpu/microcode/amd.c
@@ -373,8 +373,6 @@ static int cf_check apply_microcode(const struct microcode_patch *patch,
            "microcode: CPU%u updated from revision %#x to %#x, date = %04x-%02x-%02x\n",
            cpu, old_rev, rev, patch->year, patch->month, patch->day);
 
-    amd_check_zenbleed();
-
     return 0;
 }
 
diff --git a/xen/arch/x86/include/asm/processor.h b/xen/arch/x86/include/asm/processor.h
index 1aec6691c9..98734f4d3f 100644
--- a/xen/arch/x86/include/asm/processor.h
+++ b/xen/arch/x86/include/asm/processor.h
@@ -504,8 +504,6 @@ enum ap_boot_method {
 };
 extern enum ap_boot_method ap_boot_method;
 
-void amd_check_zenbleed(void);
-
 #endif /* !__ASSEMBLY__ */
 
 #endif /* __ASM_X86_PROCESSOR_H */