diff --git a/ash/src/extensions/experimental/amd.rs b/ash/src/extensions/experimental/amd.rs
index c39c5a777..9ec927f8b 100644
--- a/ash/src/extensions/experimental/amd.rs
+++ b/ash/src/extensions/experimental/amd.rs
@@ -409,8 +409,8 @@ impl AmdGpaInterfaceFn {
                         stringify!(create_gpa_session_amd)
                     ))
                 }
-                let raw_name = stringify!(vkCreateGpaSessionAMD);
-                let cname = ::std::ffi::CString::new(raw_name).unwrap();
+                let cname =
+                    ::std::ffi::CStr::from_bytes_with_nul_unchecked(b"vkCreateGpaSessionAMD\0");
                 let val = _f(&cname);
                 if val.is_null() {
                     create_gpa_session_amd
@@ -429,8 +429,8 @@ impl AmdGpaInterfaceFn {
                         stringify!(destroy_gpa_session_amd)
                     ))
                 }
-                let raw_name = stringify!(vkDestroyGpaSessionAMD);
-                let cname = ::std::ffi::CString::new(raw_name).unwrap();
+                let cname =
+                    ::std::ffi::CStr::from_bytes_with_nul_unchecked(b"vkDestroyGpaSessionAMD\0");
                 let val = _f(&cname);
                 if val.is_null() {
                     destroy_gpa_session_amd
@@ -448,8 +448,9 @@ impl AmdGpaInterfaceFn {
                         stringify!(set_gpa_device_clock_mode_amd)
                     ))
                 }
-                let raw_name = stringify!(vkSetGpaDeviceClockModeAMD);
-                let cname = ::std::ffi::CString::new(raw_name).unwrap();
+                let cname = ::std::ffi::CStr::from_bytes_with_nul_unchecked(
+                    b"vkSetGpaDeviceClockModeAMD\0",
+                );
                 let val = _f(&cname);
                 if val.is_null() {
                     set_gpa_device_clock_mode_amd
@@ -467,8 +468,8 @@ impl AmdGpaInterfaceFn {
                         stringify!(cmd_begin_gpa_session_amd)
                     ))
                 }
-                let raw_name = stringify!(vkCmdBeginGpaSessionAMD);
-                let cname = ::std::ffi::CString::new(raw_name).unwrap();
+                let cname =
+                    ::std::ffi::CStr::from_bytes_with_nul_unchecked(b"vkCmdBeginGpaSessionAMD\0");
                 let val = _f(&cname);
                 if val.is_null() {
                     cmd_begin_gpa_session_amd
@@ -486,8 +487,8 @@ impl AmdGpaInterfaceFn {
                         stringify!(cmd_end_gpa_session_amd)
                     ))
                 }
-                let raw_name = stringify!(vkCmdEndGpaSessionAMD);
-                let cname = ::std::ffi::CString::new(raw_name).unwrap();
+                let cname =
+                    ::std::ffi::CStr::from_bytes_with_nul_unchecked(b"vkCmdEndGpaSessionAMD\0");
                 let val = _f(&cname);
                 if val.is_null() {
                     cmd_end_gpa_session_amd
@@ -507,8 +508,8 @@ impl AmdGpaInterfaceFn {
                         stringify!(cmd_begin_gpa_sample_amd)
                     ))
                 }
-                let raw_name = stringify!(vkCmdBeginGpaSampleAMD);
-                let cname = ::std::ffi::CString::new(raw_name).unwrap();
+                let cname =
+                    ::std::ffi::CStr::from_bytes_with_nul_unchecked(b"vkCmdBeginGpaSampleAMD\0");
                 let val = _f(&cname);
                 if val.is_null() {
                     cmd_begin_gpa_sample_amd
@@ -527,8 +528,8 @@ impl AmdGpaInterfaceFn {
                         stringify!(cmd_end_gpa_sample_amd)
                     ))
                 }
-                let raw_name = stringify!(vkCmdEndGpaSampleAMD);
-                let cname = ::std::ffi::CString::new(raw_name).unwrap();
+                let cname =
+                    ::std::ffi::CStr::from_bytes_with_nul_unchecked(b"vkCmdEndGpaSampleAMD\0");
                 let val = _f(&cname);
                 if val.is_null() {
                     cmd_end_gpa_sample_amd
@@ -546,8 +547,8 @@ impl AmdGpaInterfaceFn {
                         stringify!(get_gpa_session_status_amd)
                     ))
                 }
-                let raw_name = stringify!(vkGetGpaSessionStatusAMD);
-                let cname = ::std::ffi::CString::new(raw_name).unwrap();
+                let cname =
+                    ::std::ffi::CStr::from_bytes_with_nul_unchecked(b"vkGetGpaSessionStatusAMD\0");
                 let val = _f(&cname);
                 if val.is_null() {
                     get_gpa_session_status_amd
@@ -568,8 +569,8 @@ impl AmdGpaInterfaceFn {
                         stringify!(get_gpa_session_results_amd)
                     ))
                 }
-                let raw_name = stringify!(vkGetGpaSessionResultsAMD);
-                let cname = ::std::ffi::CString::new(raw_name).unwrap();
+                let cname =
+                    ::std::ffi::CStr::from_bytes_with_nul_unchecked(b"vkGetGpaSessionResultsAMD\0");
                 let val = _f(&cname);
                 if val.is_null() {
                     get_gpa_session_results_amd
@@ -587,8 +588,8 @@ impl AmdGpaInterfaceFn {
                         stringify!(reset_gpa_session_amd)
                     ))
                 }
-                let raw_name = stringify!(vkCmdEndGpaSampleAMD);
-                let cname = ::std::ffi::CString::new(raw_name).unwrap();
+                let cname =
+                    ::std::ffi::CStr::from_bytes_with_nul_unchecked(b"vkCmdEndGpaSampleAMD\0");
                 let val = _f(&cname);
                 if val.is_null() {
                     reset_gpa_session_amd
@@ -606,8 +607,9 @@ impl AmdGpaInterfaceFn {
                         stringify!(cmd_copy_gpa_session_results_amd)
                     ))
                 }
-                let raw_name = stringify!(vkCmdCopyGpaSessionResultsAMD);
-                let cname = ::std::ffi::CString::new(raw_name).unwrap();
+                let cname = ::std::ffi::CStr::from_bytes_with_nul_unchecked(
+                    b"vkCmdCopyGpaSessionResultsAMD\0",
+                );
                 let val = _f(&cname);
                 if val.is_null() {
                     cmd_copy_gpa_session_results_amd