2022-05-11 23:40:57

by Guo Zhengkui

Subject: [PATCH] selftests: kvm: replace ternary operator with min()

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 <[email protected]>
---
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

2022-05-14 03:23:58

by Paolo Bonzini

Subject: Re: [PATCH] selftests: kvm: replace ternary operator with min()

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 <[email protected]>
> ---
> 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