diff --git a/arch/arm64/include/asm/debug-monitors.h b/arch/arm64/include/asm/debug-monitors.h
index e28b1ddf22b9..6a17fb8a16d1 100644
--- a/arch/arm64/include/asm/debug-monitors.h
+++ b/arch/arm64/include/asm/debug-monitors.h
@@ -66,25 +66,10 @@
  */
 #define AARCH64_BREAK_FAULT	(AARCH64_BREAK_MON | (FAULT_BRK_IMM << 5))
 
-/*
- * Extract byte from BRK instruction
- */
-#define KGDB_DYN_DBG_BRK_INS_BYTE(x) \
-	((((AARCH64_BREAK_MON) & 0xffe0001f) >> (x * 8)) & 0xff)
-
-/*
- * Extract byte from BRK #imm16
- */
-#define KGBD_DYN_DBG_BRK_IMM_BYTE(x) \
-	(((((KGDB_DYN_DBG_BRK_IMM) & 0xffff) << 5) >> (x * 8)) & 0xff)
-
-#define KGDB_DYN_DBG_BRK_BYTE(x) \
-	(KGDB_DYN_DBG_BRK_INS_BYTE(x) | KGBD_DYN_DBG_BRK_IMM_BYTE(x))
-
-#define  KGDB_DYN_BRK_INS_BYTE0  KGDB_DYN_DBG_BRK_BYTE(0)
-#define  KGDB_DYN_BRK_INS_BYTE1  KGDB_DYN_DBG_BRK_BYTE(1)
-#define  KGDB_DYN_BRK_INS_BYTE2  KGDB_DYN_DBG_BRK_BYTE(2)
-#define  KGDB_DYN_BRK_INS_BYTE3  KGDB_DYN_DBG_BRK_BYTE(3)
+#define AARCH64_BREAK_KGDB_DYN_DBG	\
+	(AARCH64_BREAK_MON | (KGDB_DYN_DBG_BRK_IMM << 5))
+#define KGDB_DYN_BRK_INS_BYTE(x)	\
+	((AARCH64_BREAK_KGDB_DYN_DBG >> (8 * (x))) & 0xff)
 
 #define CACHE_FLUSH_IS_SAFE		1
 
diff --git a/arch/arm64/kernel/kgdb.c b/arch/arm64/kernel/kgdb.c
index a5a838e72c5e..bcac81e600b9 100644
--- a/arch/arm64/kernel/kgdb.c
+++ b/arch/arm64/kernel/kgdb.c
@@ -235,13 +235,13 @@ static int kgdb_step_brk_fn(struct pt_regs *regs, unsigned int esr)
 
 static struct break_hook kgdb_brkpt_hook = {
 	.esr_mask	= 0xffffffff,
-	.esr_val	= ESR_ELx_VAL_BRK64(KGDB_DYN_DBG_BRK_IMM),
+	.esr_val	= (u32)ESR_ELx_VAL_BRK64(KGDB_DYN_DBG_BRK_IMM),
 	.fn		= kgdb_brk_fn
 };
 
 static struct break_hook kgdb_compiled_brkpt_hook = {
 	.esr_mask	= 0xffffffff,
-	.esr_val	= ESR_ELx_VAL_BRK64(KGDB_COMPILED_DBG_BRK_IMM),
+	.esr_val	= (u32)ESR_ELx_VAL_BRK64(KGDB_COMPILED_DBG_BRK_IMM),
 	.fn		= kgdb_compiled_brk_fn
 };
 
@@ -328,9 +328,9 @@ void kgdb_arch_exit(void)
  */
 struct kgdb_arch arch_kgdb_ops = {
 	.gdb_bpt_instr = {
-		KGDB_DYN_BRK_INS_BYTE0,
-		KGDB_DYN_BRK_INS_BYTE1,
-		KGDB_DYN_BRK_INS_BYTE2,
-		KGDB_DYN_BRK_INS_BYTE3,
+		KGDB_DYN_BRK_INS_BYTE(0),
+		KGDB_DYN_BRK_INS_BYTE(1),
+		KGDB_DYN_BRK_INS_BYTE(2),
+		KGDB_DYN_BRK_INS_BYTE(3),
 	}
 };