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rust: hpet: fix fw_cfg handling

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HPET ids for fw_cfg are not assigned correctly, because there
is a read but no write.  This is caught by nightly Rust as
an unused-assignments warning, so fix it.

Reviewed-by: Zhao Liu <zhao1.liu@intel.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
This commit is contained in:
Paolo Bonzini
2025-10-13 16:49:12 +02:00
parent ceda1563d6
commit 414ac7e057
1 changed files with 2 additions and 2 deletions
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rust/hw/timer/hpet/src/fw_cfg.rs
+2 -2
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@@ -40,7 +40,7 @@ impl HPETFwConfig {
assert!(bql::is_locked());
// SAFETY: all accesses go through these methods, which guarantee
// that the accesses are protected by the BQL.
let mut fw_cfg = unsafe { *addr_of_mut!(hpet_fw_cfg) };
let fw_cfg = unsafe { &mut *addr_of_mut!(hpet_fw_cfg) };
if fw_cfg.count == u8::MAX {
// first instance
@@ -60,7 +60,7 @@ impl HPETFwConfig {
assert!(bql::is_locked());
// SAFETY: all accesses go through these methods, which guarantee
// that the accesses are protected by the BQL.
let mut fw_cfg = unsafe { *addr_of_mut!(hpet_fw_cfg) };
let fw_cfg = unsafe { &mut *addr_of_mut!(hpet_fw_cfg) };
fw_cfg.hpet[hpet_id].event_timer_block_id = timer_block_id;
fw_cfg.hpet[hpet_id].address = address;