derive Eq for structs that derive PartialEq

This solves the clippy warnings generated from switching to a newer
Rust version.

Signed-off-by: Andreea Florescu <fandree@amazon.com>

Author: andreeaflorescu

src/cmdline/mod.rs

@@ -14,7 +14,7 @@ use std::result;
 use vm_memory::{Address, GuestAddress, GuestUsize};
 
 /// The error type for command line building operations.
-#[derive(Debug, PartialEq)]
+#[derive(Debug, PartialEq, Eq)]
 pub enum Error {
     /// Operation would have resulted in a non-printable ASCII character.
     InvalidAscii,

src/configurator/aarch64/fdt.rs

@@ -11,7 +11,7 @@ use std::fmt;
 use crate::configurator::{BootConfigurator, BootParams, Error as BootConfiguratorError, Result};
 
 /// Errors specific to the device tree boot protocol configuration.
-#[derive(Debug, PartialEq)]
+#[derive(Debug, PartialEq, Eq)]
 pub enum Error {
     /// FDT does not fit in guest memory.
     FDTPastRamEnd,

src/configurator/mod.rs

@@ -35,7 +35,7 @@ use std::cmp::max;
 use std::mem::size_of;
 
 /// Errors specific to boot protocol configuration.
-#[derive(Debug, PartialEq)]
+#[derive(Debug, PartialEq, Eq)]
 pub enum Error {
     /// Errors specific to the Linux boot protocol configuration.
     #[cfg(any(target_arch = "x86", target_arch = "x86_64"))]
@@ -433,28 +433,28 @@ mod tests {
 
     unsafe impl ByteValued for Foobar {}
 
-    #[derive(Clone, Copy, Debug, Default, PartialEq)]
+    #[derive(Clone, Copy, Debug, Default, PartialEq, Eq)]
     struct DummyHeader {
         _dummy: u64,
     }
 
     unsafe impl ByteValued for DummyHeader {}
 
-    #[derive(Clone, Copy, Debug, Default, PartialEq)]
+    #[derive(Clone, Copy, Debug, Default, PartialEq, Eq)]
     struct DummySection {
         _dummy: u64,
     }
 
     unsafe impl ByteValued for DummySection {}
 
-    #[derive(Clone, Copy, Debug, Default, PartialEq)]
+    #[derive(Clone, Copy, Debug, Default, PartialEq, Eq)]
     struct DummyModule {
         _dummy: u64,
     }
 
     unsafe impl ByteValued for DummyModule {}
 
-    #[derive(Clone, Copy, Debug, Default, PartialEq)]
+    #[derive(Clone, Copy, Debug, Default, PartialEq, Eq)]
     struct OtherDummyModule {
         _dummy: u64,
     }

src/configurator/x86_64/linux.rs

@@ -22,7 +22,7 @@ use std::fmt;
 pub struct LinuxBootConfigurator {}
 
 /// Errors specific to the Linux boot protocol configuration.
-#[derive(Debug, PartialEq)]
+#[derive(Debug, PartialEq, Eq)]
 pub enum Error {
     /// The zero page extends past the end of guest memory.
     ZeroPagePastRamEnd,

src/configurator/x86_64/pvh.rs

@@ -25,7 +25,7 @@ use std::fmt;
 pub struct PvhBootConfigurator {}
 
 /// Errors specific to the PVH boot protocol configuration.
-#[derive(Debug, PartialEq)]
+#[derive(Debug, PartialEq, Eq)]
 pub enum Error {
     /// The starting address for the memory map wasn't passed to the boot configurator.
     MemmapTableAddressMissing,

src/loader/aarch64/pe/mod.rs

@@ -25,7 +25,7 @@ pub struct PE;
 
 unsafe impl ByteValued for arm64_image_header {}
 
-#[derive(Debug, PartialEq)]
+#[derive(Debug, PartialEq, Eq)]
 /// PE kernel loader errors.
 pub enum Error {
     /// Unable to seek to Image end.

src/loader/mod.rs

@@ -41,7 +41,7 @@ mod aarch64;
 #[cfg(target_arch = "aarch64")]
 pub use aarch64::*;
 
-#[derive(Debug, PartialEq)]
+#[derive(Debug, PartialEq, Eq)]
 /// Kernel loader errors.
 pub enum Error {
     /// Failed to load bzimage.

src/loader/x86_64/bzimage/mod.rs

@@ -21,7 +21,7 @@ use super::super::{
     bootparam, Error as KernelLoaderError, KernelLoader, KernelLoaderResult, Result,
 };
 
-#[derive(Debug, PartialEq)]
+#[derive(Debug, PartialEq, Eq)]
 /// Bzimage kernel loader errors.
 pub enum Error {
     /// Invalid bzImage binary.

src/loader/x86_64/elf/mod.rs

@@ -27,7 +27,7 @@ unsafe impl ByteValued for elf::Elf64_Ehdr {}
 unsafe impl ByteValued for elf::Elf64_Nhdr {}
 unsafe impl ByteValued for elf::Elf64_Phdr {}
 
-#[derive(Debug, PartialEq)]
+#[derive(Debug, PartialEq, Eq)]
 /// Elf kernel loader errors.
 pub enum Error {
     /// Invalid alignment.
@@ -96,7 +96,7 @@ impl fmt::Display for Error {
 
 impl std::error::Error for Error {}
 
-#[derive(Clone, Copy, Debug, PartialEq)]
+#[derive(Clone, Copy, Debug, PartialEq, Eq)]
 /// Availability of PVH entry point in the kernel, which allows the VMM
 /// to use the PVH boot protocol to start guests.
 pub enum PvhBootCapability {