rust: driver: remove `$module_table_name` from `module_device_table`

Wrap the generated code in a `const _: ()` block to avoid symbol conflict.
This removes the need of creating a new identifier.

Signed-off-by: Gary Guo <gary@garyguo.net>
Reviewed-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Link: https://patch.msgid.link/20260629-id_info-v2-7-56fccbe9c5ef@garyguo.net
[ Consider the serdev code merged in the meantime. - Danilo ]
Signed-off-by: Danilo Krummrich <dakr@kernel.org>

7 files changed, 17 insertions, 24 deletions

diff --git a/rust/kernel/device_id.rs b/rust/kernel/device_id.rs
index 0239f89d5f69..022f0101871f 100644
--- a/rust/kernel/device_id.rs
+++ b/rust/kernel/device_id.rs
@@ -177,7 +177,7 @@ impl<T: RawDeviceId, U, const N: usize> IdTable<T, U> for IdArray<T, U, N> {
 macro_rules! module_device_table {
     (
         $table_type: literal, $device_id_ty: ty,
-        $table_name: ident, $module_table_name: ident, $id_info_type: ty,
+        $table_name: ident, $id_info_type: ty,
         [$(($id: expr, $info:expr $(,)?)),* $(,)?]
     ) => {
         const $table_name: $crate::device_id::IdArray<
@@ -186,13 +186,13 @@ macro_rules! module_device_table {
             { <[$device_id_ty]>::len(&[$($id,)*]) },
         > = $crate::device_id::IdArray::new([$(($id, $info),)*]);
 
-        $crate::module_device_table!($table_type, $module_table_name, $table_name);
+        $crate::module_device_table!($table_type, $table_name);
     };
 
     // Case for no ID info.
     (
         $table_type: literal, $device_id_ty: ty,
-        $table_name: ident, $module_table_name: ident, @none,
+        $table_name: ident, @none,
         [$($id: expr),* $(,)?]
     ) => {
         const $table_name: $crate::device_id::IdArray<
@@ -201,18 +201,20 @@ macro_rules! module_device_table {
             { <[$device_id_ty]>::len(&[$($id,)*]) },
         > = $crate::device_id::IdArray::new_without_index([$($id),*]);
 
-        $crate::module_device_table!($table_type, $module_table_name, $table_name);
+        $crate::module_device_table!($table_type, $table_name);
     };
 
-    ($table_type: literal, $module_table_name: ident, $table_name:ident) => {
-        #[rustfmt::skip]
-        #[export_name =
-            concat!("__mod_device_table__", line!(),
-                    "__kmod_", module_path!(),
-                    "__", $table_type,
-                    "__", stringify!($table_name))
-        ]
-        static $module_table_name: [::core::mem::MaybeUninit<u8>; $table_name.raw_ids().size()] =
-            unsafe { ::core::mem::transmute_copy($table_name.raw_ids()) };
+    ($table_type: literal, $table_name:ident) => {
+        const _: () = {
+            #[rustfmt::skip]
+            #[export_name =
+                concat!("__mod_device_table__", line!(),
+                        "__kmod_", module_path!(),
+                        "__", $table_type,
+                        "__", stringify!($table_name))
+            ]
+            static MOD_DEVICE_TABLE: [::core::mem::MaybeUninit<u8>; $table_name.raw_ids().size()] =
+                unsafe { ::core::mem::transmute_copy($table_name.raw_ids()) };
+        };
     };
 }
diff --git a/rust/kernel/i2c.rs b/rust/kernel/i2c.rs
index a1f968fd873d..6f2dcd467e72 100644
--- a/rust/kernel/i2c.rs
+++ b/rust/kernel/i2c.rs
@@ -261,7 +261,6 @@ macro_rules! module_i2c_driver {
 ///
 /// kernel::acpi_device_table!(
 ///     ACPI_TABLE,
-///     MODULE_ACPI_TABLE,
 ///     <MyDriver as i2c::Driver>::IdInfo,
 ///     [
 ///         (acpi::DeviceId::new(c"LNUXBEEF"), ())
@@ -270,7 +269,6 @@ macro_rules! module_i2c_driver {
 ///
 /// kernel::i2c_device_table!(
 ///     I2C_TABLE,
-///     MODULE_I2C_TABLE,
 ///     <MyDriver as i2c::Driver>::IdInfo,
 ///     [
 ///          (i2c::DeviceId::new(c"rust_driver_i2c"), ())
@@ -279,7 +277,6 @@ macro_rules! module_i2c_driver {
 ///
 /// kernel::of_device_table!(
 ///     OF_TABLE,
-///     MODULE_OF_TABLE,
 ///     <MyDriver as i2c::Driver>::IdInfo,
 ///     [
 ///         (of::DeviceId::new(c"test,device"), ())
diff --git a/rust/kernel/net/phy.rs b/rust/kernel/net/phy.rs
index e25c61c6d8bb..cc7ec436cfca 100644
--- a/rust/kernel/net/phy.rs
+++ b/rust/kernel/net/phy.rs
@@ -867,7 +867,7 @@ macro_rules! module_phy_driver {
     (@device_table [$($dev:expr),+]) => {
         $crate::module_device_table!(
             "mdio", $crate::net::phy::DeviceId,
-            phydev, TABLE, @none, [$($dev),+]
+            TABLE, @none, [$($dev),+]
         );
     };
 
diff --git a/rust/kernel/pci.rs b/rust/kernel/pci.rs
index 5cc4052991e7..b170cf8fffe1 100644
--- a/rust/kernel/pci.rs
+++ b/rust/kernel/pci.rs
@@ -261,7 +261,6 @@ macro_rules! pci_device_table {
 ///
 /// kernel::pci_device_table!(
 ///     PCI_TABLE,
-///     MODULE_PCI_TABLE,
 ///     <MyDriver as pci::Driver>::IdInfo,
 ///     [
 ///         (
diff --git a/rust/kernel/platform.rs b/rust/kernel/platform.rs
index 9b362e0495d3..210a815925ce 100644
--- a/rust/kernel/platform.rs
+++ b/rust/kernel/platform.rs
@@ -176,7 +176,6 @@ macro_rules! module_platform_driver {
 ///
 /// kernel::of_device_table!(
 ///     OF_TABLE,
-///     MODULE_OF_TABLE,
 ///     <MyDriver as platform::Driver>::IdInfo,
 ///     [
 ///         (of::DeviceId::new(c"test,device"), ())
@@ -185,7 +184,6 @@ macro_rules! module_platform_driver {
 ///
 /// kernel::acpi_device_table!(
 ///     ACPI_TABLE,
-///     MODULE_ACPI_TABLE,
 ///     <MyDriver as platform::Driver>::IdInfo,
 ///     [
 ///         (acpi::DeviceId::new(c"LNUXBEEF"), ())
diff --git a/rust/kernel/serdev.rs b/rust/kernel/serdev.rs
index cf537d9eeeb4..383f62b1b713 100644
--- a/rust/kernel/serdev.rs
+++ b/rust/kernel/serdev.rs
@@ -322,7 +322,6 @@ macro_rules! module_serdev_device_driver {
 ///
 /// kernel::of_device_table!(
 ///     OF_TABLE,
-///     MODULE_OF_TABLE,
 ///     <MyDriver as serdev::Driver>::IdInfo,
 ///     [
 ///         (of::DeviceId::new(c"test,device"), ())
@@ -331,7 +330,6 @@ macro_rules! module_serdev_device_driver {
 ///
 /// kernel::acpi_device_table!(
 ///     ACPI_TABLE,
-///     MODULE_ACPI_TABLE,
 ///     <MyDriver as serdev::Driver>::IdInfo,
 ///     [
 ///         (acpi::DeviceId::new(c"LNUXBEEF"), ())
diff --git a/rust/kernel/usb.rs b/rust/kernel/usb.rs
index 3797f4a79b79..d8cffbe594ff 100644
--- a/rust/kernel/usb.rs
+++ b/rust/kernel/usb.rs
@@ -271,7 +271,6 @@ macro_rules! usb_device_table {
 ///
 /// kernel::usb_device_table!(
 ///     USB_TABLE,
-///     MODULE_USB_TABLE,
 ///     <MyDriver as usb::Driver>::IdInfo,
 ///     [
 ///         (usb::DeviceId::from_id(0x1234, 0x5678), ()),