linux-kernel - Re: [PATCH v1 1/1] ACPI: scan: Utilize match

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Date:   Mon, 12 Apr 2021 19:35:09 +0200
From:   "Rafael J. Wysocki" <rafael@...nel.org>
To:     Andy Shevchenko <andy.shevchenko@...il.com>
Cc:     "Rafael J. Wysocki" <rafael.j.wysocki@...el.com>,
        ACPI Devel Maling List <linux-acpi@...r.kernel.org>,
        Linux Kernel Mailing List <linux-kernel@...r.kernel.org>,
        "Rafael J. Wysocki" <rjw@...ysocki.net>,
        Len Brown <lenb@...nel.org>
Subject: Re: [PATCH v1 1/1] ACPI: scan: Utilize match_string() API

On Sat, Apr 10, 2021 at 4:02 PM Andy Shevchenko
<andy.shevchenko@...il.com> wrote:
>
> We have already an API to match a string in the array of strings.
> Utilize it instead of open coded analogues.
>
> Signed-off-by: Andy Shevchenko <andy.shevchenko@...il.com>
> ---
>  drivers/acpi/scan.c | 22 ++++++++++------------
>  1 file changed, 10 insertions(+), 12 deletions(-)
>
> diff --git a/drivers/acpi/scan.c b/drivers/acpi/scan.c
> index b1d1f1a8ce69..bba6b529cf6c 100644
> --- a/drivers/acpi/scan.c
> +++ b/drivers/acpi/scan.c
> @@ -756,27 +756,25 @@ static bool acpi_info_matches_ids(struct acpi_device_info *info,
>                                   const char * const ids[])
>  {
>         struct acpi_pnp_device_id_list *cid_list = NULL;
> -       int i;
> +       int i, index;
>
>         if (!(info->valid & ACPI_VALID_HID))
>                 return false;
>
> +       index = match_string(ids, -1, info->hardware_id.string);
> +       if (index >= 0)
> +               return true;
> +
>         if (info->valid & ACPI_VALID_CID)
>                 cid_list = &info->compatible_id_list;
>
> -       for (i = 0; ids[i]; i++) {
> -               int j;
> +       if (!cid_list)
> +               return false;
>
> -               if (!strcmp(info->hardware_id.string, ids[i]))
> +       for (i = 0; i < cid_list->count; i++) {
> +               index = match_string(ids, -1, cid_list->ids[i].string);
> +               if (index >= 0)
>                         return true;
> -
> -               if (!cid_list)
> -                       continue;
> -
> -               for (j = 0; j < cid_list->count; j++) {
> -                       if (!strcmp(cid_list->ids[j].string, ids[i]))
> -                               return true;
> -               }
>         }
>
>         return false;
> --

Applied as 5.13 material, thanks!