RE: [PATCH V5 1/9] drivers core: Add support for Wifi band RF mitigations

[Quan, Evan]

[AMD Official Use Only - General]

> -----Original Message-----
> From: Simon Horman <simon.horman@xxxxxxxxxxxx>
> Sent: Friday, June 30, 2023 9:39 PM
> To: Quan, Evan <Evan.Quan@xxxxxxx>
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> Subject: Re: [PATCH V5 1/9] drivers core: Add support for Wifi band RF
> mitigations
>
> On Fri, Jun 30, 2023 at 06:32:32PM +0800, Evan Quan wrote:
>
> ...
>
> > diff --git a/include/linux/wbrf.h b/include/linux/wbrf.h
> > new file mode 100644
> > index 000000000000..3ca95786cef5
> > --- /dev/null
> > +++ b/include/linux/wbrf.h
> > @@ -0,0 +1,65 @@
> > +/* SPDX-License-Identifier: GPL-2.0 */
> > +/*
> > + * Wifi Band Exclusion Interface
> > + * Copyright (C) 2023 Advanced Micro Devices
> > + */
> > +
> > +#ifndef _LINUX_WBRF_H
> > +#define _LINUX_WBRF_H
> > +
> > +#include <linux/device.h>
> > +
> > +/* Maximum number of wbrf ranges */
> > +#define MAX_NUM_OF_WBRF_RANGES             11
> > +
> > +struct exclusion_range {
> > +   /* start and end point of the frequency range in Hz */
> > +   uint64_t        start;
> > +   uint64_t        end;
> > +};
> > +
> > +struct exclusion_range_pool {
> > +   struct exclusion_range  band_list[MAX_NUM_OF_WBRF_RANGES];
> > +   uint64_t
>       ref_counter[MAX_NUM_OF_WBRF_RANGES];
> > +};
> > +
> > +struct wbrf_ranges_in {
> > +   /* valid entry: `start` and `end` filled with non-zero values */
> > +   struct exclusion_range  band_list[MAX_NUM_OF_WBRF_RANGES];
> > +};
> > +
> > +struct wbrf_ranges_out {
> > +   uint32_t                num_of_ranges;
> > +   struct exclusion_range  band_list[MAX_NUM_OF_WBRF_RANGES];
> > +} __packed;
> > +
> > +enum wbrf_notifier_actions {
> > +   WBRF_CHANGED,
> > +};
>
> Hi Evan,
>
> checkpatch suggests that u64 and u32 might be more appropriate types here,
> as they are Kernel types, whereas the ones use are user-space types.
Thanks for pointing this out. Will update them accordingly.

Evan
>
> ...