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arch: x86_64: Fix clippy (needless_late_init) issue

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warning: unneeded late initalization
   --> arch/src/x86_64/mod.rs:318:17
    |
318 |                 let reg_val: u32;
    |                 ^^^^^^^^^^^^^^^^^
    |
    = note: `#[warn(clippy::needless_late_init)]` on by default
    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_late_init
help: declare `reg_val` here
    |
319 |                 let reg_val: u32 = match reg {
    |                 ++++++++++++++++++
help: remove the assignments from the `match` arms
    |
321 ~                         entry.eax
322 |                     }
323 |                     CpuidReg::EBX => {
324 ~                         entry.ebx
325 |                     }
326 |                     CpuidReg::ECX => {
  ...
help: add a semicolon after the `match` expression
    |
332 |                 };
    |                  +

warning: unneeded late initalization
   --> arch/src/x86_64/mod.rs:525:13
    |
525 |             let entry_compatible;
    |             ^^^^^^^^^^^^^^^^^^^^^
    |
    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_late_init
help: declare `entry_compatible` here
    |
526 |             let entry_compatible = match entry.compatible_check {
    |             ++++++++++++++++++++++
help: remove the assignments from the `match` arms
    |
530 ~                     src_vm_feature_bits_only == 0
531 |                 }
532 |                 CpuidCompatibleCheck::Equal => {
533 ~                     src_vm_feature == dest_vm_feature
534 |                 }
535 |                 CpuidCompatibleCheck::NumNotGreater => {

Signed-off-by: Rob Bradford <robert.bradford@intel.com>
This commit is contained in:
Rob Bradford 2022-01-07 10:20:13 +00:00 committed by Bo Chen
parent 2563b08ff0
commit 3baebc1af0
1 changed files with 10 additions and 24 deletions
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34
arch/src/x86_64/mod.rs
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@ -315,21 +315,12 @@ impl CpuidPatch {
for entry in entries.iter() {
if entry.function == function && entry.index == index {
let reg_val: u32;
match reg {
CpuidReg::EAX => {
reg_val = entry.eax;
}
CpuidReg::EBX => {
reg_val = entry.ebx;
}
CpuidReg::ECX => {
reg_val = entry.ecx;
}
CpuidReg::EDX => {
reg_val = entry.edx;
}
}
let reg_val = match reg {
CpuidReg::EAX => entry.eax,
CpuidReg::EBX => entry.ebx,
CpuidReg::ECX => entry.ecx,
CpuidReg::EDX => entry.edx,
};
return (reg_val & mask) == mask;
}
@ -522,19 +513,14 @@ impl CpuidFeatureEntry {
.enumerate()
{
let entry = &feature_entry_list[i];
let entry_compatible;
match entry.compatible_check {
let entry_compatible = match entry.compatible_check {
CpuidCompatibleCheck::BitwiseSubset => {
let different_feature_bits = src_vm_feature ^ dest_vm_feature;
let src_vm_feature_bits_only = different_feature_bits & src_vm_feature;
entry_compatible = src_vm_feature_bits_only == 0;
}
CpuidCompatibleCheck::Equal => {
entry_compatible = src_vm_feature == dest_vm_feature;
}
CpuidCompatibleCheck::NumNotGreater => {
entry_compatible = src_vm_feature <= dest_vm_feature;
src_vm_feature_bits_only == 0
}
CpuidCompatibleCheck::Equal => src_vm_feature == dest_vm_feature,
CpuidCompatibleCheck::NumNotGreater => src_vm_feature <= dest_vm_feature,
};
if !entry_compatible {
error!(