linux-kernel - Re: [PATCH v5 02/12] KVM: arm64: selftests: Data type cleanup for arch

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Date: Mon, 22 Jan 2024 13:21:33 +0100
From: Andrew Jones <ajones@...tanamicro.com>
To: Haibo Xu <haibo1.xu@...el.com>
Cc: xiaobo55x@...il.com, Paul Walmsley <paul.walmsley@...ive.com>, 
	Palmer Dabbelt <palmer@...belt.com>, Albert Ou <aou@...s.berkeley.edu>, 
	Paolo Bonzini <pbonzini@...hat.com>, Shuah Khan <shuah@...nel.org>, Marc Zyngier <maz@...nel.org>, 
	Oliver Upton <oliver.upton@...ux.dev>, James Morse <james.morse@....com>, 
	Suzuki K Poulose <suzuki.poulose@....com>, Zenghui Yu <yuzenghui@...wei.com>, 
	Anup Patel <anup@...infault.org>, Atish Patra <atishp@...shpatra.org>, Guo Ren <guoren@...nel.org>, 
	Conor Dooley <conor.dooley@...rochip.com>, Mayuresh Chitale <mchitale@...tanamicro.com>, 
	wchen <waylingii@...il.com>, Daniel Henrique Barboza <dbarboza@...tanamicro.com>, 
	Samuel Holland <samuel@...lland.org>, Jisheng Zhang <jszhang@...nel.org>, 
	Minda Chen <minda.chen@...rfivetech.com>, Sean Christopherson <seanjc@...gle.com>, 
	Peter Xu <peterx@...hat.com>, Like Xu <likexu@...cent.com>, Vipin Sharma <vipinsh@...gle.com>, 
	Aaron Lewis <aaronlewis@...gle.com>, Thomas Huth <thuth@...hat.com>, 
	Maciej Wieczor-Retman <maciej.wieczor-retman@...el.com>, linux-kernel@...r.kernel.org, linux-riscv@...ts.infradead.org, 
	kvm@...r.kernel.org, linux-kselftest@...r.kernel.org, 
	linux-arm-kernel@...ts.infradead.org, kvmarm@...ts.linux.dev, kvm-riscv@...ts.infradead.org
Subject: Re: [PATCH v5 02/12] KVM: arm64: selftests: Data type cleanup for
 arch_timer test

On Mon, Jan 22, 2024 at 05:58:32PM +0800, Haibo Xu wrote:
> Change signed type to unsigned in test_args struct which
> only make sense for unsigned value.
> 
> Suggested-by: Andrew Jones <ajones@...tanamicro.com>
> Signed-off-by: Haibo Xu <haibo1.xu@...el.com>
> ---
>  tools/testing/selftests/kvm/aarch64/arch_timer.c | 12 ++++++------
>  1 file changed, 6 insertions(+), 6 deletions(-)
> 
> diff --git a/tools/testing/selftests/kvm/aarch64/arch_timer.c b/tools/testing/selftests/kvm/aarch64/arch_timer.c
> index 274b8465b42a..3260fefcc1b3 100644
> --- a/tools/testing/selftests/kvm/aarch64/arch_timer.c
> +++ b/tools/testing/selftests/kvm/aarch64/arch_timer.c
> @@ -42,10 +42,10 @@
>  #define TIMER_TEST_MIGRATION_FREQ_MS	2
>  
>  struct test_args {
> -	int nr_vcpus;
> -	int nr_iter;
> -	int timer_period_ms;
> -	int migration_freq_ms;
> +	uint32_t nr_vcpus;
> +	uint32_t nr_iter;
> +	uint32_t timer_period_ms;
> +	uint32_t migration_freq_ms;
>  	struct kvm_arm_counter_offset offset;
>  };
>  
> @@ -57,7 +57,7 @@ static struct test_args test_args = {
>  	.offset = { .reserved = 1 },
>  };
>  
> -#define msecs_to_usecs(msec)		((msec) * 1000LL)
> +#define msecs_to_usecs(msec)		((msec) * 1000ULL)
>  
>  #define GICD_BASE_GPA			0x8000000ULL
>  #define GICR_BASE_GPA			0x80A0000ULL
> @@ -72,7 +72,7 @@ enum guest_stage {
>  
>  /* Shared variables between host and guest */
>  struct test_vcpu_shared_data {
> -	int nr_iter;
> +	uint32_t nr_iter;
>  	enum guest_stage guest_stage;
>  	uint64_t xcnt;
>  };
> -- 
> 2.34.1
>

Reviewed-by: Andrew Jones <ajones@...tanamicro.com>