Re: [PATCH] watchdog: Get rid of MODULE_ALIAS_MISCDEV statements
From: Wim Van Sebroeck
Date: Tue Oct 29 2013 - 03:54:48 EST
Hi Jean,
> I just can't find any value in MODULE_ALIAS_MISCDEV(WATCHDOG_MINOR)
> and MODULE_ALIAS_MISCDEV(TEMP_MINOR) statements.
>
> Either the device is enumerated and the driver already has a module
> alias (e.g. PCI, USB etc.) that will get the right driver loaded
> automatically.
>
> Or the device is not enumerated and loading its driver will lead to
> more or less intrusive hardware poking. Such hardware poking should be
> limited to a bare minimum, so the user should really decide which
> drivers should be tried and in what order. Trying them all in
> arbitrary order can't do any good.
>
> On top of that, loading that many drivers at once bloats the kernel
> log. Also many drivers will stay loaded afterward, bloating the output
> of "lsmod" and wasting memory. Some modules (cs5535_mfgpt which gets
> loaded as a dependency) can't even be unloaded!
>
> If defining char-major-10-130 is needed then it should happen in
> user-space.
>
> Signed-off-by: Jean Delvare <jdelvare@xxxxxxx>
> Cc: Wim Van Sebroeck <wim@xxxxxxxxx>
> Cc: Stephen Warren <swarren@xxxxxxxxxxxxx>
> Cc: Mike Frysinger <vapier.adi@xxxxxxxxx>
> Cc: Wan ZongShun <mcuos.com@xxxxxxxxx>
> Cc: Ben Dooks <ben-linux@xxxxxxxxx>
> Cc: Kukjin Kim <kgene.kim@xxxxxxxxxxx>
> Cc: Zwane Mwaikambo <zwane@xxxxxxxxxxxxxxxx>
> Cc: Jim Cromie <jim.cromie@xxxxxxxxx>
> Cc: Guenter Roeck <linux@xxxxxxxxxxxx>
This patch has been added to linux-watchdog-next.
I also added the removal part for the new rt2880_wdt.c driver to it.
Kind regards,
Wim.
--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at http://vger.kernel.org/majordomo-info.html
Please read the FAQ at http://www.tux.org/lkml/