Re: [PATCH] ACPICA: Use swap() instead of open coding it

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On Fri, Feb 2, 2024 at 9:15 AM Jiapeng Chong
<jiapeng.chong@xxxxxxxxxxxxxxxxx> wrote:
>
> Swap is a function interface that provides exchange function. To avoid
> code duplication, we can use swap function.
>
> ./drivers/acpi/acpica/nsrepair2.c:896:33-34: WARNING opportunity for swap().

In order to modify the ACPICA code in the Linux kernel, you need to
submit a corresponding pull request to the upstream ACPICA project on
GitHub.  Once that pull request has been merged, please send the Linux
patch with a Link: tag pointing to the upstream ACPICA pull request
corresponding to it.

Thanks!

> Reported-by: Abaci Robot <abaci@xxxxxxxxxxxxxxxxx>
> Closes: https://bugzilla.openanolis.cn/show_bug.cgi?id=8168
> Signed-off-by: Jiapeng Chong <jiapeng.chong@xxxxxxxxxxxxxxxxx>
> ---
>  drivers/acpi/acpica/nsrepair2.c | 5 +----
>  1 file changed, 1 insertion(+), 4 deletions(-)
>
> diff --git a/drivers/acpi/acpica/nsrepair2.c b/drivers/acpi/acpica/nsrepair2.c
> index 1bb7b71f07f1..ccd89a82a4e6 100644
> --- a/drivers/acpi/acpica/nsrepair2.c
> +++ b/drivers/acpi/acpica/nsrepair2.c
> @@ -875,7 +875,6 @@ acpi_ns_sort_list(union acpi_operand_object **elements,
>  {
>         union acpi_operand_object *obj_desc1;
>         union acpi_operand_object *obj_desc2;
> -       union acpi_operand_object *temp_obj;
>         u32 i;
>         u32 j;
>
> @@ -892,9 +891,7 @@ acpi_ns_sort_list(union acpi_operand_object **elements,
>                             || ((sort_direction == ACPI_SORT_DESCENDING)
>                                 && (obj_desc1->integer.value <
>                                     obj_desc2->integer.value))) {
> -                               temp_obj = elements[j - 1];
> -                               elements[j - 1] = elements[j];
> -                               elements[j] = temp_obj;
> +                               swap(elements[j], elements[j - 1]);
>                         }
>                 }
>         }
> --
> 2.20.1.7.g153144c
>
>





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