Fix some clippy warnings

src/boot/elf.rs

@@ -108,7 +108,7 @@ impl From<OurElfLoader> for Vec<Allocation> {
     // Gets the allocated memory.
     fn from(loader: OurElfLoader) -> Vec<Allocation> {
         // using .values() would just borrow the values from the hash map
-        loader.allocations.into_iter().map(|(_k, v)| v).collect()
+        loader.allocations.into_values().collect()
     }
 }
 
@@ -133,7 +133,7 @@ pub(super) fn symbols(
 
     // copy the symbols
     // only copy sections that are not already loaded
-    for mut section in binary.section_headers.iter_mut().filter(
+    for section in binary.section_headers.iter_mut().filter(
         |s| s.sh_addr == 0 && s.file_range().is_some()
     ) {
         let index = memory.len();

src/boot/mod.rs

@@ -22,7 +22,7 @@ use uefi::table::cfg::ConfigTableEntry;
 
 use log::{debug, info, error, warn};
 
-use multiboot12::header::{Header, Addresses as MultibootAddresses};
+use multiboot12::header::Header;
 use multiboot12::information::{
     Module, InfoBuilder, Symbols
 };
@@ -93,7 +93,7 @@ impl LoadedKernel {
         // drop the old vector
         core::mem::drop(kernel_vec);
 
-        let entry_point = get_kernel_uefi_entry(header, &quirks)
+        let entry_point = get_kernel_uefi_entry(header, quirks)
             .or(header.get_entry_address().map(
                 |e| EntryPoint::Multiboot(e as usize)
             ))
@@ -123,7 +123,7 @@ impl LoadedKernel {
             Status::LOAD_ERROR
         })?;
         let symbols = Some(elf::symbols(header, &mut binary, kernel_vec.as_slice()));
-        let entry_point = get_kernel_uefi_entry(header, &quirks)
+        let entry_point = get_kernel_uefi_entry(header, quirks)
             .or(header.get_entry_address().map(
                 |e| EntryPoint::Multiboot(e as usize)
             ))
@@ -355,7 +355,7 @@ impl<'a> PreparedEntry<'a> {
         // the returned memory map (including the version!),
         // we might want to pass that instead.
         let mut mb_efi_mmap_vec = self.multiboot_information
-            .allocate_efi_memory_map_vec(estimated_count.try_into().unwrap());
+            .allocate_efi_memory_map_vec(estimated_count);
         let mut mb_mmap_vec = self.multiboot_information
             .allocate_memory_map_vec(estimated_count);
         self.multiboot_information.set_memory_bounds(Some((0, 0)));

src/mem.rs

@@ -175,7 +175,7 @@ fn dump_memory_map() {
 ///
 /// This needs to have a buffer to write to because we can't allocate memory anymore.
 /// (The buffer may be too large.)
-pub(super) fn prepare_information<'a>(
+pub(super) fn prepare_information(
     info_bytes: &mut [u8],
     mut update_memory_info: Box<dyn FnMut(
         &mut [u8], u32, u32, &[multiboot12::information::MemoryEntry],