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KVM: arm64: avoid unused-variable warning

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The 'cpu' variable is only used inside of an #ifdef block and causes
a warning if there is no user:

arch/arm64/kvm/hyp_trace.c: In function 'kvm_hyp_trace_init':
arch/arm64/kvm/hyp_trace.c:422:13: error: unused variable 'cpu' [-Werror=unused-variable]
  422 |         int cpu;
      |             ^~~

Change the #ifdef to an equivalent IS_ENABLED() check to avoid
the warning.

Fixes: b22888917f ("KVM: arm64: Sync boot clock with the nVHE/pKVM hyp")
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Reviewed-by: Vincent Donnefort <vdonnefort@google.com>
Link: https://patch.msgid.link/20260313094925.3749287-1-arnd@kernel.org
Signed-off-by: Marc Zyngier <maz@kernel.org>
This commit is contained in:
Arnd Bergmann
2026-03-13 10:49:16 +01:00
committed by Marc Zyngier
parent 1211907ac0
commit 8510d054b7
1 changed files with 2 additions and 3 deletions
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5
arch/arm64/kvm/hyp_trace.c
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@@ -424,17 +424,16 @@ int __init kvm_hyp_trace_init(void)
if (is_kernel_in_hyp_mode())
return 0;
#ifdef CONFIG_ARM_ARCH_TIMER_OOL_WORKAROUND
for_each_possible_cpu(cpu) {
const struct arch_timer_erratum_workaround *wa =
per_cpu(timer_unstable_counter_workaround, cpu);
if (wa && wa->read_cntvct_el0) {
if (IS_ENABLED(CONFIG_ARM_ARCH_TIMER_OOL_WORKAROUND) &&
wa && wa->read_cntvct_el0) {
pr_warn("hyp trace can't handle CNTVCT workaround '%s'\n", wa->desc);
return -EOPNOTSUPP;
}
}
#endif
hyp_trace_init_events();