* Re: [PATCH] selftests: kvm: replace ternary operator with min()
2022-05-11 12:05 [PATCH] selftests: kvm: replace ternary operator with min() Guo Zhengkui
@ 2022-05-11 14:06 ` Claudio Imbrenda
2022-05-11 14:12 ` Anup Patel
2022-05-12 14:04 ` Paolo Bonzini
2 siblings, 0 replies; 4+ messages in thread
From: Claudio Imbrenda @ 2022-05-11 14:06 UTC (permalink / raw)
To: Guo Zhengkui
Cc: Marc Zyngier, James Morse, Alexandru Elisei, Suzuki K Poulose,
Paolo Bonzini, Shuah Khan, Paul Walmsley, Palmer Dabbelt,
Albert Ou, Christian Borntraeger, Janosch Frank,
David Hildenbrand, Anup Patel,
moderated list:KERNEL VIRTUAL MACHINE FOR ARM64 (KVM/arm64),
moderated list:KERNEL VIRTUAL MACHINE FOR ARM64 (KVM/arm64),
open list:KERNEL VIRTUAL MACHINE (KVM),
open list:KERNEL SELFTEST FRAMEWORK, open list,
open list:RISC-V ARCHITECTURE, zhengkui_guo
On Wed, 11 May 2022 20:05:55 +0800
Guo Zhengkui <guozhengkui@vivo.com> wrote:
> Fix the following coccicheck warnings:
>
> tools/testing/selftests/kvm/lib/s390x/ucall.c:25:15-17: WARNING
> opportunity for min()
> tools/testing/selftests/kvm/lib/x86_64/ucall.c:27:15-17: WARNING
> opportunity for min()
> tools/testing/selftests/kvm/lib/riscv/ucall.c:56:15-17: WARNING
> opportunity for min()
> tools/testing/selftests/kvm/lib/aarch64/ucall.c:82:15-17: WARNING
> opportunity for min()
> tools/testing/selftests/kvm/lib/aarch64/ucall.c:55:20-21: WARNING
> opportunity for min()
>
> min() is defined in tools/include/linux/kernel.h.
>
> Signed-off-by: Guo Zhengkui <guozhengkui@vivo.com>
Acked-by: Claudio Imbrenda <imbrenda@linux.ibm.com>
> ---
> tools/testing/selftests/kvm/lib/aarch64/ucall.c | 4 ++--
> tools/testing/selftests/kvm/lib/riscv/ucall.c | 2 +-
> tools/testing/selftests/kvm/lib/s390x/ucall.c | 2 +-
> tools/testing/selftests/kvm/lib/x86_64/ucall.c | 2 +-
> 4 files changed, 5 insertions(+), 5 deletions(-)
>
> diff --git a/tools/testing/selftests/kvm/lib/aarch64/ucall.c b/tools/testing/selftests/kvm/lib/aarch64/ucall.c
> index e0b0164e9af8..00be3ef195ca 100644
> --- a/tools/testing/selftests/kvm/lib/aarch64/ucall.c
> +++ b/tools/testing/selftests/kvm/lib/aarch64/ucall.c
> @@ -52,7 +52,7 @@ void ucall_init(struct kvm_vm *vm, void *arg)
> * lower and won't match physical addresses.
> */
> bits = vm->va_bits - 1;
> - bits = vm->pa_bits < bits ? vm->pa_bits : bits;
> + bits = min(vm->pa_bits, bits);
> end = 1ul << bits;
> start = end * 5 / 8;
> step = end / 16;
> @@ -79,7 +79,7 @@ void ucall(uint64_t cmd, int nargs, ...)
> va_list va;
> int i;
>
> - nargs = nargs <= UCALL_MAX_ARGS ? nargs : UCALL_MAX_ARGS;
> + nargs = min(nargs, UCALL_MAX_ARGS);
>
> va_start(va, nargs);
> for (i = 0; i < nargs; ++i)
> diff --git a/tools/testing/selftests/kvm/lib/riscv/ucall.c b/tools/testing/selftests/kvm/lib/riscv/ucall.c
> index 9e42d8248fa6..34f16fe70ce8 100644
> --- a/tools/testing/selftests/kvm/lib/riscv/ucall.c
> +++ b/tools/testing/selftests/kvm/lib/riscv/ucall.c
> @@ -53,7 +53,7 @@ void ucall(uint64_t cmd, int nargs, ...)
> va_list va;
> int i;
>
> - nargs = nargs <= UCALL_MAX_ARGS ? nargs : UCALL_MAX_ARGS;
> + nargs = min(nargs, UCALL_MAX_ARGS);
>
> va_start(va, nargs);
> for (i = 0; i < nargs; ++i)
> diff --git a/tools/testing/selftests/kvm/lib/s390x/ucall.c b/tools/testing/selftests/kvm/lib/s390x/ucall.c
> index 9d3b0f15249a..665267c1135d 100644
> --- a/tools/testing/selftests/kvm/lib/s390x/ucall.c
> +++ b/tools/testing/selftests/kvm/lib/s390x/ucall.c
> @@ -22,7 +22,7 @@ void ucall(uint64_t cmd, int nargs, ...)
> va_list va;
> int i;
>
> - nargs = nargs <= UCALL_MAX_ARGS ? nargs : UCALL_MAX_ARGS;
> + nargs = min(nargs, UCALL_MAX_ARGS);
>
> va_start(va, nargs);
> for (i = 0; i < nargs; ++i)
> diff --git a/tools/testing/selftests/kvm/lib/x86_64/ucall.c b/tools/testing/selftests/kvm/lib/x86_64/ucall.c
> index a3489973e290..2ea31a0ebe30 100644
> --- a/tools/testing/selftests/kvm/lib/x86_64/ucall.c
> +++ b/tools/testing/selftests/kvm/lib/x86_64/ucall.c
> @@ -24,7 +24,7 @@ void ucall(uint64_t cmd, int nargs, ...)
> va_list va;
> int i;
>
> - nargs = nargs <= UCALL_MAX_ARGS ? nargs : UCALL_MAX_ARGS;
> + nargs = min(nargs, UCALL_MAX_ARGS);
>
> va_start(va, nargs);
> for (i = 0; i < nargs; ++i)
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http://lists.infradead.org/mailman/listinfo/linux-arm-kernel
^ permalink raw reply [flat|nested] 4+ messages in thread
* Re: [PATCH] selftests: kvm: replace ternary operator with min()
2022-05-11 12:05 [PATCH] selftests: kvm: replace ternary operator with min() Guo Zhengkui
2022-05-11 14:06 ` Claudio Imbrenda
@ 2022-05-11 14:12 ` Anup Patel
2022-05-12 14:04 ` Paolo Bonzini
2 siblings, 0 replies; 4+ messages in thread
From: Anup Patel @ 2022-05-11 14:12 UTC (permalink / raw)
To: Guo Zhengkui
Cc: Marc Zyngier, James Morse, Alexandru Elisei, Suzuki K Poulose,
Paolo Bonzini, Shuah Khan, Paul Walmsley, Palmer Dabbelt,
Albert Ou, Christian Borntraeger, Janosch Frank, Claudio Imbrenda,
David Hildenbrand,
moderated list:KERNEL VIRTUAL MACHINE FOR ARM64 (KVM/arm64),
moderated list:KERNEL VIRTUAL MACHINE FOR ARM64 (KVM/arm64),
open list:KERNEL VIRTUAL MACHINE (KVM),
open list:KERNEL SELFTEST FRAMEWORK, open list,
open list:RISC-V ARCHITECTURE, zhengkui_guo
On Wed, May 11, 2022 at 5:38 PM Guo Zhengkui <guozhengkui@vivo.com> wrote:
>
> Fix the following coccicheck warnings:
>
> tools/testing/selftests/kvm/lib/s390x/ucall.c:25:15-17: WARNING
> opportunity for min()
> tools/testing/selftests/kvm/lib/x86_64/ucall.c:27:15-17: WARNING
> opportunity for min()
> tools/testing/selftests/kvm/lib/riscv/ucall.c:56:15-17: WARNING
> opportunity for min()
> tools/testing/selftests/kvm/lib/aarch64/ucall.c:82:15-17: WARNING
> opportunity for min()
> tools/testing/selftests/kvm/lib/aarch64/ucall.c:55:20-21: WARNING
> opportunity for min()
>
> min() is defined in tools/include/linux/kernel.h.
>
> Signed-off-by: Guo Zhengkui <guozhengkui@vivo.com>
For KVM RISC-V:
Acked-by: Anup Patel <anup@brainfault.org>
Thanks,
Anup
> ---
> tools/testing/selftests/kvm/lib/aarch64/ucall.c | 4 ++--
> tools/testing/selftests/kvm/lib/riscv/ucall.c | 2 +-
> tools/testing/selftests/kvm/lib/s390x/ucall.c | 2 +-
> tools/testing/selftests/kvm/lib/x86_64/ucall.c | 2 +-
> 4 files changed, 5 insertions(+), 5 deletions(-)
>
> diff --git a/tools/testing/selftests/kvm/lib/aarch64/ucall.c b/tools/testing/selftests/kvm/lib/aarch64/ucall.c
> index e0b0164e9af8..00be3ef195ca 100644
> --- a/tools/testing/selftests/kvm/lib/aarch64/ucall.c
> +++ b/tools/testing/selftests/kvm/lib/aarch64/ucall.c
> @@ -52,7 +52,7 @@ void ucall_init(struct kvm_vm *vm, void *arg)
> * lower and won't match physical addresses.
> */
> bits = vm->va_bits - 1;
> - bits = vm->pa_bits < bits ? vm->pa_bits : bits;
> + bits = min(vm->pa_bits, bits);
> end = 1ul << bits;
> start = end * 5 / 8;
> step = end / 16;
> @@ -79,7 +79,7 @@ void ucall(uint64_t cmd, int nargs, ...)
> va_list va;
> int i;
>
> - nargs = nargs <= UCALL_MAX_ARGS ? nargs : UCALL_MAX_ARGS;
> + nargs = min(nargs, UCALL_MAX_ARGS);
>
> va_start(va, nargs);
> for (i = 0; i < nargs; ++i)
> diff --git a/tools/testing/selftests/kvm/lib/riscv/ucall.c b/tools/testing/selftests/kvm/lib/riscv/ucall.c
> index 9e42d8248fa6..34f16fe70ce8 100644
> --- a/tools/testing/selftests/kvm/lib/riscv/ucall.c
> +++ b/tools/testing/selftests/kvm/lib/riscv/ucall.c
> @@ -53,7 +53,7 @@ void ucall(uint64_t cmd, int nargs, ...)
> va_list va;
> int i;
>
> - nargs = nargs <= UCALL_MAX_ARGS ? nargs : UCALL_MAX_ARGS;
> + nargs = min(nargs, UCALL_MAX_ARGS);
>
> va_start(va, nargs);
> for (i = 0; i < nargs; ++i)
> diff --git a/tools/testing/selftests/kvm/lib/s390x/ucall.c b/tools/testing/selftests/kvm/lib/s390x/ucall.c
> index 9d3b0f15249a..665267c1135d 100644
> --- a/tools/testing/selftests/kvm/lib/s390x/ucall.c
> +++ b/tools/testing/selftests/kvm/lib/s390x/ucall.c
> @@ -22,7 +22,7 @@ void ucall(uint64_t cmd, int nargs, ...)
> va_list va;
> int i;
>
> - nargs = nargs <= UCALL_MAX_ARGS ? nargs : UCALL_MAX_ARGS;
> + nargs = min(nargs, UCALL_MAX_ARGS);
>
> va_start(va, nargs);
> for (i = 0; i < nargs; ++i)
> diff --git a/tools/testing/selftests/kvm/lib/x86_64/ucall.c b/tools/testing/selftests/kvm/lib/x86_64/ucall.c
> index a3489973e290..2ea31a0ebe30 100644
> --- a/tools/testing/selftests/kvm/lib/x86_64/ucall.c
> +++ b/tools/testing/selftests/kvm/lib/x86_64/ucall.c
> @@ -24,7 +24,7 @@ void ucall(uint64_t cmd, int nargs, ...)
> va_list va;
> int i;
>
> - nargs = nargs <= UCALL_MAX_ARGS ? nargs : UCALL_MAX_ARGS;
> + nargs = min(nargs, UCALL_MAX_ARGS);
>
> va_start(va, nargs);
> for (i = 0; i < nargs; ++i)
> --
> 2.20.1
>
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http://lists.infradead.org/mailman/listinfo/linux-arm-kernel
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* Re: [PATCH] selftests: kvm: replace ternary operator with min()
2022-05-11 12:05 [PATCH] selftests: kvm: replace ternary operator with min() Guo Zhengkui
2022-05-11 14:06 ` Claudio Imbrenda
2022-05-11 14:12 ` Anup Patel
@ 2022-05-12 14:04 ` Paolo Bonzini
2 siblings, 0 replies; 4+ messages in thread
From: Paolo Bonzini @ 2022-05-12 14:04 UTC (permalink / raw)
To: Guo Zhengkui, Marc Zyngier, James Morse, Alexandru Elisei,
Suzuki K Poulose, Shuah Khan, Paul Walmsley, Palmer Dabbelt,
Albert Ou, Christian Borntraeger, Janosch Frank, Claudio Imbrenda,
David Hildenbrand, Anup Patel,
moderated list:KERNEL VIRTUAL MACHINE FOR ARM64 (KVM/arm64),
moderated list:KERNEL VIRTUAL MACHINE FOR ARM64 (KVM/arm64),
open list:KERNEL VIRTUAL MACHINE (KVM),
open list:KERNEL SELFTEST FRAMEWORK, open list,
open list:RISC-V ARCHITECTURE
Cc: zhengkui_guo
On 5/11/22 14:05, Guo Zhengkui wrote:
> Fix the following coccicheck warnings:
>
> tools/testing/selftests/kvm/lib/s390x/ucall.c:25:15-17: WARNING
> opportunity for min()
> tools/testing/selftests/kvm/lib/x86_64/ucall.c:27:15-17: WARNING
> opportunity for min()
> tools/testing/selftests/kvm/lib/riscv/ucall.c:56:15-17: WARNING
> opportunity for min()
> tools/testing/selftests/kvm/lib/aarch64/ucall.c:82:15-17: WARNING
> opportunity for min()
> tools/testing/selftests/kvm/lib/aarch64/ucall.c:55:20-21: WARNING
> opportunity for min()
>
> min() is defined in tools/include/linux/kernel.h.
>
> Signed-off-by: Guo Zhengkui <guozhengkui@vivo.com>
> ---
> tools/testing/selftests/kvm/lib/aarch64/ucall.c | 4 ++--
> tools/testing/selftests/kvm/lib/riscv/ucall.c | 2 +-
> tools/testing/selftests/kvm/lib/s390x/ucall.c | 2 +-
> tools/testing/selftests/kvm/lib/x86_64/ucall.c | 2 +-
> 4 files changed, 5 insertions(+), 5 deletions(-)
>
> diff --git a/tools/testing/selftests/kvm/lib/aarch64/ucall.c b/tools/testing/selftests/kvm/lib/aarch64/ucall.c
> index e0b0164e9af8..00be3ef195ca 100644
> --- a/tools/testing/selftests/kvm/lib/aarch64/ucall.c
> +++ b/tools/testing/selftests/kvm/lib/aarch64/ucall.c
> @@ -52,7 +52,7 @@ void ucall_init(struct kvm_vm *vm, void *arg)
> * lower and won't match physical addresses.
> */
> bits = vm->va_bits - 1;
> - bits = vm->pa_bits < bits ? vm->pa_bits : bits;
> + bits = min(vm->pa_bits, bits);
> end = 1ul << bits;
> start = end * 5 / 8;
> step = end / 16;
> @@ -79,7 +79,7 @@ void ucall(uint64_t cmd, int nargs, ...)
> va_list va;
> int i;
>
> - nargs = nargs <= UCALL_MAX_ARGS ? nargs : UCALL_MAX_ARGS;
> + nargs = min(nargs, UCALL_MAX_ARGS);
>
> va_start(va, nargs);
> for (i = 0; i < nargs; ++i)
> diff --git a/tools/testing/selftests/kvm/lib/riscv/ucall.c b/tools/testing/selftests/kvm/lib/riscv/ucall.c
> index 9e42d8248fa6..34f16fe70ce8 100644
> --- a/tools/testing/selftests/kvm/lib/riscv/ucall.c
> +++ b/tools/testing/selftests/kvm/lib/riscv/ucall.c
> @@ -53,7 +53,7 @@ void ucall(uint64_t cmd, int nargs, ...)
> va_list va;
> int i;
>
> - nargs = nargs <= UCALL_MAX_ARGS ? nargs : UCALL_MAX_ARGS;
> + nargs = min(nargs, UCALL_MAX_ARGS);
>
> va_start(va, nargs);
> for (i = 0; i < nargs; ++i)
> diff --git a/tools/testing/selftests/kvm/lib/s390x/ucall.c b/tools/testing/selftests/kvm/lib/s390x/ucall.c
> index 9d3b0f15249a..665267c1135d 100644
> --- a/tools/testing/selftests/kvm/lib/s390x/ucall.c
> +++ b/tools/testing/selftests/kvm/lib/s390x/ucall.c
> @@ -22,7 +22,7 @@ void ucall(uint64_t cmd, int nargs, ...)
> va_list va;
> int i;
>
> - nargs = nargs <= UCALL_MAX_ARGS ? nargs : UCALL_MAX_ARGS;
> + nargs = min(nargs, UCALL_MAX_ARGS);
>
> va_start(va, nargs);
> for (i = 0; i < nargs; ++i)
> diff --git a/tools/testing/selftests/kvm/lib/x86_64/ucall.c b/tools/testing/selftests/kvm/lib/x86_64/ucall.c
> index a3489973e290..2ea31a0ebe30 100644
> --- a/tools/testing/selftests/kvm/lib/x86_64/ucall.c
> +++ b/tools/testing/selftests/kvm/lib/x86_64/ucall.c
> @@ -24,7 +24,7 @@ void ucall(uint64_t cmd, int nargs, ...)
> va_list va;
> int i;
>
> - nargs = nargs <= UCALL_MAX_ARGS ? nargs : UCALL_MAX_ARGS;
> + nargs = min(nargs, UCALL_MAX_ARGS);
>
> va_start(va, nargs);
> for (i = 0; i < nargs; ++i)
Queued, thanks.
Paolo
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