acpi: fix misc clippy warnings

Author: 00xc

acpi/src/lib.rs

@@ -28,7 +28,7 @@
 //! * Use `AcpiTables::from_rsdp` if you have the physical address of the RSDP
 //! * Use `AcpiTables::from_rsdt` if you have the physical address of the RSDT/XSDT
 //! * Use `AcpiTables::search_for_rsdp_bios` if you don't have the address of either, but **you know you are
-//! running on BIOS, not UEFI**
+//!   running on BIOS, not UEFI**
 //!
 //! `AcpiTables` stores the addresses of all of the tables detected on a platform. The SDTs are parsed by this
 //! library, or can be accessed directly with `from_sdt`, while the `DSDT` and any `SSDTs` should be parsed with

acpi/src/madt.rs

@@ -53,11 +53,8 @@ unsafe impl AcpiTable for Madt {
 impl Madt {
     pub fn get_mpwk_mailbox_addr(&self) -> Result<u64, AcpiError> {
         for entry in self.entries() {
-            match entry {
-                MadtEntry::MultiprocessorWakeup(entry) => {
-                    return Ok(entry.mailbox_address);
-                }
-                _ => {}
+            if let MadtEntry::MultiprocessorWakeup(entry) = entry {
+                return Ok(entry.mailbox_address);
             }
         }
         Err(AcpiError::InvalidMadt(MadtError::UnexpectedEntry))