style: fix clippy errors from 2024-11-28

src/arch/x86_64/mod.rs

@@ -32,7 +32,7 @@ pub fn detect_freq_from_cpuid(
 
 	let has_invariant_tsc = cpuid
 		.get_advanced_power_mgmt_info()
-		.map_or(false, |apm_info| apm_info.has_invariant_tsc());
+		.is_some_and(|apm_info| apm_info.has_invariant_tsc());
 	if !has_invariant_tsc {
 		warn!("TSC frequency varies with speed-stepping")
 	}
@@ -268,12 +268,11 @@ mod tests {
 	fn test_detect_freq_from_cpuid() {
 		let cpuid = raw_cpuid::CpuId::new();
 		let has_tsc = cpuid
-			.get_feature_info()
-			.map_or(false, |finfo| finfo.has_tsc());
+			.get_feature_info().is_some_and(|finfo| finfo.has_tsc());
 
 		let has_invariant_tsc = cpuid
 			.get_advanced_power_mgmt_info()
-			.map_or(false, |apm_info| apm_info.has_invariant_tsc());
+			.is_some_and(|apm_info| apm_info.has_invariant_tsc());
 
 		let tsc_frequency_hz = cpuid.get_tsc_info().map(|tinfo| {
 			if tinfo.tsc_frequency().is_some() {

src/hypercall.rs

@@ -206,7 +206,7 @@ pub fn copy_argv(path: &OsStr, argv: &[String], syscmdval: &CmdvalParams, mem: &
 
 	// Copy the application arguments into the vm memory
 	for (counter, argument) in argv.iter().enumerate() {
-		let len = argument.as_bytes().len();
+		let len = argument.len();
 		let arg_dest = unsafe {
 			mem.slice_at_mut(arg_addrs[counter], len + 1)
 				.expect("Systemcall parameters for Cmdval are invalid")

src/virtqueue.rs

@@ -78,7 +78,7 @@ pub struct AvailIter<'a> {
 	queue_size: u16,
 }
 
-impl<'a> Iterator for AvailIter<'a> {
+impl Iterator for AvailIter<'_> {
 	type Item = u16;
 
 	fn next(&mut self) -> Option<Self::Item> {

uhyve-interface/src/lib.rs

@@ -124,7 +124,7 @@ pub enum Hypercall<'a> {
 	/// Write a buffer to the terminal.
 	SerialWriteBuffer(&'a SerialWriteBufferParams),
 }
-impl<'a> Hypercall<'a> {
+impl Hypercall<'_> {
 	// TODO: Remove this in the next major version
 	/// Get a hypercall's port address.
 	pub fn port(&self) -> u16 {