linux-kernel - Re: [PATCH v8 3/4] fpga: dfl: add basic support for DFHv1

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Date:   Mon, 2 Jan 2023 19:28:25 +0200
From:   Andy Shevchenko <andriy.shevchenko@...ux.intel.com>
To:     matthew.gerlach@...ux.intel.com
Cc:     Tom Rix <trix@...hat.com>, hao.wu@...el.com, yilun.xu@...el.com,
        russell.h.weight@...el.com, basheer.ahmed.muddebihal@...el.com,
        mdf@...nel.org, linux-fpga@...r.kernel.org,
        linux-doc@...r.kernel.org, linux-kernel@...r.kernel.org,
        tianfei.zhang@...el.com, corbet@....net,
        gregkh@...uxfoundation.org, linux-serial@...r.kernel.org,
        jirislaby@...nel.org, geert+renesas@...der.be,
        niklas.soderlund+renesas@...natech.se, macro@...am.me.uk,
        johan@...nel.org, lukas@...ner.de, ilpo.jarvinen@...ux.intel.com,
        marpagan@...hat.com, bagasdotme@...il.com
Subject: Re: [PATCH v8 3/4] fpga: dfl: add basic support for DFHv1

On Mon, Jan 02, 2023 at 07:27:06PM +0200, Andy Shevchenko wrote:
> On Mon, Jan 02, 2023 at 08:54:48AM -0800, matthew.gerlach@...ux.intel.com wrote:
> > On Thu, 29 Dec 2022, Andy Shevchenko wrote:
> > > On Thu, Dec 29, 2022 at 08:18:03AM -0800, Tom Rix wrote:
> > > > On 12/28/22 10:16 AM, matthew.gerlach@...ux.intel.com wrote:

...

> > > > > +	u64 params[];
> > > > u64 *params
> 
> > > This will break the overflow.h macros, no?
> > > Besides that it will break the code for sure as it's not an equivalent.
> 
> > I don't understand how this will break the overflow.h macros. The definition
> > of struct dfl_feature_info and all of its uses are in a single file, dfl.c.
> 
> Hint: __must_be_array()
> 
> As I said, the proposed change is not acceptable since it's not an equivalent.

Ah, you meant that there is no use of macros from overflow in the dfl.c?
IIRC we discussed that some of the code may make use of them, or am I
mistaken?

-- 
With Best Regards,
Andy Shevchenko