Re: [PATCH 3/4] power: Add Qualcomm SMBB driver

From: Paul Bolle
Date: Fri Jun 19 2015 - 13:01:45 EST


On Thu, 2015-06-18 at 14:13 -0700, Bjorn Andersson wrote:
> --- /dev/null
> +++ b/drivers/power/qcom_smbb.c

> +MODULE_ALIAS("platform:qcom_smbb");

(The day before yesterday and yesterday I had a, well, lively
conversation regarding this macro. The interesting bits start at
https://lkml.org/lkml/2015/6/17/383 .

But in a converstaion today things were rather silent. See
https://lkml.org/lkml/2015/6/19/68 and the reply, of sorts, in
https://lkml.org/lkml/2015/6/19/117. Let's see what happens here.)

As I understand it, this alias is only useful if there's a corresponding
struct platform_device, somewhere. Ie, this alias implies a
platform_device that will fire of a "MODALIAS=platform:qcom_smbb" uevent
when it's created. That would be a platform_device using a "qcom_smbb"
name.

If that's correct, then I think this MODULE_ALIAS macro isn't needed
here, as I couldn't find a platform_device using that name. (But perhaps
a patch that adds it is pending, somewhere.)

Thanks,


Paul Bolle

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