linux-kernel - Re: [PATCH] acpi/nfit: Use kobj_to

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Date:   Fri, 14 Aug 2020 17:28:52 +0200
From:   "Rafael J. Wysocki" <rafael@...nel.org>
To:     Wang Qing <wangqing@...o.com>,
        Dan Williams <dan.j.williams@...el.com>
Cc:     Vishal Verma <vishal.l.verma@...el.com>,
        Dave Jiang <dave.jiang@...el.com>,
        Ira Weiny <ira.weiny@...el.com>,
        "Rafael J. Wysocki" <rjw@...ysocki.net>,
        Len Brown <lenb@...nel.org>,
        "linux-nvdimm@...ts.01.org" <linux-nvdimm@...ts.01.org>,
        ACPI Devel Maling List <linux-acpi@...r.kernel.org>,
        Linux Kernel Mailing List <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH] acpi/nfit: Use kobj_to_dev() instead

On Thu, Aug 13, 2020 at 4:54 AM Wang Qing <wangqing@...o.com> wrote:
>
> Use kobj_to_dev() instead of container_of()
>
> Signed-off-by: Wang Qing <wangqing@...o.com>

LGTM

Dan, any objections?

> ---
>  drivers/acpi/nfit/core.c | 4 ++--
>  1 file changed, 2 insertions(+), 2 deletions(-)
>
> diff --git a/drivers/acpi/nfit/core.c b/drivers/acpi/nfit/core.c
> index fa4500f..3bb350b
> --- a/drivers/acpi/nfit/core.c
> +++ b/drivers/acpi/nfit/core.c
> @@ -1382,7 +1382,7 @@ static bool ars_supported(struct nvdimm_bus *nvdimm_bus)
>
>  static umode_t nfit_visible(struct kobject *kobj, struct attribute *a, int n)
>  {
> -       struct device *dev = container_of(kobj, struct device, kobj);
> +       struct device *dev = kobj_to_dev(kobj);
>         struct nvdimm_bus *nvdimm_bus = to_nvdimm_bus(dev);
>
>         if (a == &dev_attr_scrub.attr && !ars_supported(nvdimm_bus))
> @@ -1667,7 +1667,7 @@ static struct attribute *acpi_nfit_dimm_attributes[] = {
>  static umode_t acpi_nfit_dimm_attr_visible(struct kobject *kobj,
>                 struct attribute *a, int n)
>  {
> -       struct device *dev = container_of(kobj, struct device, kobj);
> +       struct device *dev = kobj_to_dev(kobj);
>         struct nvdimm *nvdimm = to_nvdimm(dev);
>         struct nfit_mem *nfit_mem = nvdimm_provider_data(nvdimm);
>
> --
> 2.7.4
>