linux-kernel - Re: [PATCH] hwmon: (asus-ec-sensors) do not print from .probe()

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Message-ID: <CAB95QATVnZMQLCU_eTr7=ASVmJ+aYayQGJ0xZ=OtowdhPZQKSw@mail.gmail.com>
Date:   Thu, 17 Feb 2022 20:49:39 +0100
From:   Eugene Shalygin <eugene.shalygin@...il.com>
To:     Guenter Roeck <linux@...ck-us.net>
Cc:     Jean Delvare <jdelvare@...e.com>, linux-hwmon@...r.kernel.org,
        Linux Kernel Mailing List <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH] hwmon: (asus-ec-sensors) do not print from .probe()

On Thu, 17 Feb 2022 at 20:33, Guenter Roeck <linux@...ck-us.net> wrote:
>
> On 2/17/22 10:43, Eugene Shalygin wrote:
> > On Thu, 17 Feb 2022 at 19:26, Guenter Roeck <linux@...ck-us.net> wrote:
> >> Looks like you did not run checkpatch.
> >
> > I did (0 errors/warnings/checks). What needs to be corrected?
> >
>
> Interesting. It appears that the continuation line in the declaration
> confuses it. Otherwise you would get:
>
> WARNING: Missing a blank line after declarations

Added in v2, thank you!

> >> Either case, I think you should just drop this function In probe:
> >
> > Yes, currently that function is tiny, but some tests with motherboards
> > from other families are done by users and if I add other families, the
> > information required for each board model will grow and in that case
> > I'd switch from dmi_system_id array to a custom struct to define all
> > the board-related data at at the same place, and to save some space in
> > the module binary, as unused parts of the dmi_system_id array already
> > take a quarter of the total binary size. So, the function will likely
> > get some more code soon.
> >
>
> Hmm, ok. Wouldn't you still need some kind of dmi match ?

Of course, just not via dmi_first_match():
https://github.com/zeule/asus-ec-sensors/blob/feature/prime-x470-pro-no-dmi/asus-ec-sensors.c#L787

Regards,
Eugene