linux-kernel - Re: [PATCH] driver/i2c/mux: Add register based mux i2c-mux-reg

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]

Date:	Thu, 18 Jun 2015 10:08:21 +0200
From:	Paul Bolle <pebolle@...cali.nl>
To:	Alexander Sverdlin <alexander.sverdlin@...ia.com>
Cc:	York Sun <yorksun@...escale.com>, wsa@...-dreams.de,
	linux-kernel@...r.kernel.org, linux-i2c@...r.kernel.org,
	Peter Korsgaard <peter.korsgaard@...co.com>
Subject: Re: [PATCH] driver/i2c/mux: Add register based mux i2c-mux-reg

Hi Alexander,

On Thu, 2015-06-18 at 09:40 +0200, Alexander Sverdlin wrote:
> On 17/06/15 18:03, ext Paul Bolle wrote:
> >> You do not see the platform_device, because there are no users yet, put
> >> > this MODULE_ALIAS() is perfectly fine, it will allow automatic module loading
> >> > in non-DT case.
> > Do you mean that it will allow automatic module loading once the patch
> > that adds a struct platform_device with a "i2c-mux-reg" name lands?
> 
> Any platform code which will register the platform_device will trigger uevent and
> udevd will be able to find the module with this macro. This is a legacy alternative
> to device-tree approach.

That means I've correctly figured out the purpose of this
MODULE_ALIAS("platform:" stuff. Because it might actually be documented
somewhere but I managed to not stumble on that documentation.

With that out of the way: am I right in thinking there's currently no
platform code that triggers that uevent for
"MODALIAS=platform:i2c-mux-reg"? Because if there's no struct
platform_device taking care of that I think this MODULE_ALIAS() should
not be added, not yet.

Thanks,


Paul Bolle

--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@...r.kernel.org
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/