diff --git a/gcc/config/aarch64/aarch64-opts.h b/gcc/config/aarch64/aarch64-opts.h
index 831e28ab52a..1abae1442b5 100644
--- a/gcc/config/aarch64/aarch64-opts.h
+++ b/gcc/config/aarch64/aarch64-opts.h
@@ -103,9 +103,9 @@ enum stack_protector_guard {
 };
 
 /* The key type that -msign-return-address should use.  */
-enum aarch64_key_type {
-  AARCH64_KEY_A,
-  AARCH64_KEY_B
+enum aarch_key_type {
+  AARCH_KEY_A,
+  AARCH_KEY_B
 };
 
 /* An enum specifying how to handle load and store pairs using
diff --git a/gcc/config/aarch64/aarch64.cc b/gcc/config/aarch64/aarch64.cc
index 4f7f707b675..9739223831f 100644
--- a/gcc/config/aarch64/aarch64.cc
+++ b/gcc/config/aarch64/aarch64.cc
@@ -18620,6 +18620,61 @@ aarch64_set_asm_isa_flags (aarch64_feature_flags flags)
   aarch64_set_asm_isa_flags (&global_options, flags);
 }
 
+static void
+aarch_handle_no_branch_protection (void)
+{
+  aarch_ra_sign_scope = AARCH_FUNCTION_NONE;
+  aarch_enable_bti = 0;
+}
+
+static void
+aarch_handle_standard_branch_protection (void)
+{
+  aarch_ra_sign_scope = AARCH_FUNCTION_NON_LEAF;
+  aarch_ra_sign_key = AARCH_KEY_A;
+  aarch_enable_bti = 1;
+}
+
+static void
+aarch_handle_pac_ret_protection (void)
+{
+  aarch_ra_sign_scope = AARCH_FUNCTION_NON_LEAF;
+  aarch_ra_sign_key = AARCH_KEY_A;
+}
+
+static void
+aarch_handle_pac_ret_leaf (void)
+{
+  aarch_ra_sign_scope = AARCH_FUNCTION_ALL;
+}
+
+static void
+aarch_handle_pac_ret_b_key (void)
+{
+  aarch_ra_sign_key = AARCH_KEY_B;
+}
+
+static void
+aarch_handle_bti_protection (void)
+{
+  aarch_enable_bti = 1;
+}
+
+static const struct aarch_branch_protect_type aarch_pac_ret_subtypes[] = {
+  { "leaf", false, aarch_handle_pac_ret_leaf, NULL, 0 },
+  { "b-key", false, aarch_handle_pac_ret_b_key, NULL, 0 },
+  { NULL, false, NULL, NULL, 0 }
+};
+
+const struct aarch_branch_protect_type aarch_branch_protect_types[] = {
+  { "none", true, aarch_handle_no_branch_protection, NULL, 0 },
+  { "standard", true, aarch_handle_standard_branch_protection, NULL, 0 },
+  { "pac-ret", false, aarch_handle_pac_ret_protection, aarch_pac_ret_subtypes,
+    ARRAY_SIZE (aarch_pac_ret_subtypes) },
+  { "bti", false, aarch_handle_bti_protection, NULL, 0 },
+  { NULL, false, NULL, NULL, 0 }
+};
+
 /* Implement TARGET_OPTION_OVERRIDE.  This is called once in the beginning
    and is used to parse the -m{cpu,tune,arch} strings and setup the initial
    tuning structs.  In particular it must set selected_tune and
diff --git a/gcc/config/arm/aarch-common.cc b/gcc/config/arm/aarch-common.cc
index 159c61b786c..92e1248f83f 100644
--- a/gcc/config/arm/aarch-common.cc
+++ b/gcc/config/arm/aarch-common.cc
@@ -659,61 +659,6 @@ arm_md_asm_adjust (vec<rtx> &outputs, vec<rtx> & /*inputs*/,
   return saw_asm_flag ? seq : NULL;
 }
 
-static void
-aarch_handle_no_branch_protection (void)
-{
-  aarch_ra_sign_scope = AARCH_FUNCTION_NONE;
-  aarch_enable_bti = 0;
-}
-
-static void
-aarch_handle_standard_branch_protection (void)
-{
-  aarch_ra_sign_scope = AARCH_FUNCTION_NON_LEAF;
-  aarch_ra_sign_key = AARCH_KEY_A;
-  aarch_enable_bti = 1;
-}
-
-static void
-aarch_handle_pac_ret_protection (void)
-{
-  aarch_ra_sign_scope = AARCH_FUNCTION_NON_LEAF;
-  aarch_ra_sign_key = AARCH_KEY_A;
-}
-
-static void
-aarch_handle_pac_ret_leaf (void)
-{
-  aarch_ra_sign_scope = AARCH_FUNCTION_ALL;
-}
-
-static void
-aarch_handle_pac_ret_b_key (void)
-{
-  aarch_ra_sign_key = AARCH_KEY_B;
-}
-
-static void
-aarch_handle_bti_protection (void)
-{
-  aarch_enable_bti = 1;
-}
-
-static const struct aarch_branch_protect_type aarch_pac_ret_subtypes[] = {
-  { "leaf", false, aarch_handle_pac_ret_leaf, NULL, 0 },
-  { "b-key", false, aarch_handle_pac_ret_b_key, NULL, 0 },
-  { NULL, false, NULL, NULL, 0 }
-};
-
-static const struct aarch_branch_protect_type aarch_branch_protect_types[] = {
-  { "none", true, aarch_handle_no_branch_protection, NULL, 0 },
-  { "standard", true, aarch_handle_standard_branch_protection, NULL, 0 },
-  { "pac-ret", false, aarch_handle_pac_ret_protection, aarch_pac_ret_subtypes,
-    ARRAY_SIZE (aarch_pac_ret_subtypes) },
-  { "bti", false, aarch_handle_bti_protection, NULL, 0 },
-  { NULL, false, NULL, NULL, 0 }
-};
-
 /* In-place split *str at delim, return *str and set *str to the tail
    of the string or NULL if the end is reached.  */
 
diff --git a/gcc/config/arm/aarch-common.h b/gcc/config/arm/aarch-common.h
index f72e21127fc..90d2112408f 100644
--- a/gcc/config/arm/aarch-common.h
+++ b/gcc/config/arm/aarch-common.h
@@ -44,12 +44,7 @@ enum aarch_function_type {
   AARCH_FUNCTION_ALL
 };
 
-/* The key type that -msign-return-address should use.  */
-enum aarch_key_type {
-  AARCH_KEY_A,
-  AARCH_KEY_B
-};
-
+/* Specifies a -mbranch-protection= argument.  */
 struct aarch_branch_protect_type
 {
   /* The type's name that the user passes to the branch-protection option
@@ -64,4 +59,8 @@ struct aarch_branch_protect_type
   unsigned int num_subtypes;
 };
 
+/* Target specific data and callbacks for parsing -mbranch-protection=.
+   The first item is used to reset the branch-protection settings.  */
+extern const struct aarch_branch_protect_type aarch_branch_protect_types[];
+
 #endif /* GCC_AARCH_COMMON_H */
diff --git a/gcc/config/arm/arm-c.cc b/gcc/config/arm/arm-c.cc
index d3d93ceba00..204403b3ff4 100644
--- a/gcc/config/arm/arm-c.cc
+++ b/gcc/config/arm/arm-c.cc
@@ -248,8 +248,6 @@ arm_cpu_builtins (struct cpp_reader* pfile)
   {
     unsigned int pac = 1;
 
-    gcc_assert (aarch_ra_sign_key == AARCH_KEY_A);
-
     if (aarch_ra_sign_scope == AARCH_FUNCTION_ALL)
       pac |= 0x4;
 
diff --git a/gcc/config/arm/arm.cc b/gcc/config/arm/arm.cc
index 5681073a948..5cb0f2858b7 100644
--- a/gcc/config/arm/arm.cc
+++ b/gcc/config/arm/arm.cc
@@ -3250,6 +3250,52 @@ static sbitmap isa_all_fpubits_internal;
 static sbitmap isa_all_fpbits;
 static sbitmap isa_quirkbits;
 
+static void
+aarch_handle_no_branch_protection (void)
+{
+  aarch_ra_sign_scope = AARCH_FUNCTION_NONE;
+  aarch_enable_bti = 0;
+}
+
+static void
+aarch_handle_standard_branch_protection (void)
+{
+  aarch_ra_sign_scope = AARCH_FUNCTION_NON_LEAF;
+  aarch_enable_bti = 1;
+}
+
+static void
+aarch_handle_pac_ret_protection (void)
+{
+  aarch_ra_sign_scope = AARCH_FUNCTION_NON_LEAF;
+}
+
+static void
+aarch_handle_pac_ret_leaf (void)
+{
+  aarch_ra_sign_scope = AARCH_FUNCTION_ALL;
+}
+
+static void
+aarch_handle_bti_protection (void)
+{
+  aarch_enable_bti = 1;
+}
+
+static const struct aarch_branch_protect_type aarch_pac_ret_subtypes[] = {
+  { "leaf", false, aarch_handle_pac_ret_leaf, NULL, 0 },
+  { NULL, false, NULL, NULL, 0 }
+};
+
+const struct aarch_branch_protect_type aarch_branch_protect_types[] = {
+  { "none", true, aarch_handle_no_branch_protection, NULL, 0 },
+  { "standard", true, aarch_handle_standard_branch_protection, NULL, 0 },
+  { "pac-ret", false, aarch_handle_pac_ret_protection, aarch_pac_ret_subtypes,
+    ARRAY_SIZE (aarch_pac_ret_subtypes) },
+  { "bti", false, aarch_handle_bti_protection, NULL, 0 },
+  { NULL, false, NULL, NULL, 0 }
+};
+
 /* Configure a build target TARGET from the user-specified options OPTS and
    OPTS_SET.  If WARN_COMPATIBLE, emit a diagnostic if both the CPU and
    architecture have been specified, but the two are not identical.  */
@@ -3299,12 +3345,6 @@ arm_configure_build_target (struct arm_build_target *target,
     {
       aarch_validate_mbranch_protection (opts->x_arm_branch_protection_string,
 					 "-mbranch-protection=");
-
-      if (aarch_ra_sign_key != AARCH_KEY_A)
-	{
-	  warning (0, "invalid key type for %<-mbranch-protection=%>");
-	  aarch_ra_sign_key = AARCH_KEY_A;
-	}
     }
 
   if (arm_selected_arch)
diff --git a/gcc/config/arm/arm.opt b/gcc/config/arm/arm.opt
index 88299dabc3a..bd8bb00d035 100644
--- a/gcc/config/arm/arm.opt
+++ b/gcc/config/arm/arm.opt
@@ -30,9 +30,6 @@ enum aarch_function_type aarch_ra_sign_scope = AARCH_FUNCTION_NONE
 TargetVariable
 unsigned aarch_enable_bti = 0
 
-TargetVariable
-enum aarch_key_type aarch_ra_sign_key = AARCH_KEY_A
-
 Enum
 Name(tls_type) Type(enum arm_tls_type)
 TLS dialect to use:
