[LEDE-DEV] Difference between AutoLoad vs. AutoProbe for kernel modules?
baptiste at bitsofnetworks.org
Tue Jan 10 00:17:00 PST 2017
On Tue, Jan 10, 2017 at 07:56:36AM +0100, John Crispin wrote:
> >> While investigating an issue with module loading order¹, I discovered
> >> that
> >> some kernel packages use AutoProbe, like this:
> >> AUTOLOAD:=$(call AutoProbe,xt_hashlimit)
> >> while some kernel packages use the AutoLoad helper I was used to, with a
> >> priority:
> >> AUTOLOAD:=$(call AutoLoad,28,raid0)
> >> Judging from this commit² and `include/kernel.mk`, it seems the only
> >> difference is that AutoProbe does not include a priority.
> >> Is the loading order determined automatically for AutoProbe? If so,
> >> where
> >> is the magic, and why is AutoLoad still needed in some cases?
> > I opened the issue, so using autoload the modules will get a priority
> > specified by the number, for wireguard above 90 would issue only one
> > warning and using autoprobe the module would be loaded by the order of
> > the name ? so setting the xt_hashlimit with a lower number (autoload)
> > will start wireguard without complaining
> autoload is like insmod while autoproe is more liek modprobe. kmodloader
> will first load all numbered modules in the given order and then probe
> the remaining ones.
So, with AutoProbe, there is dependency resolution, similarly to modprobe?
But without using depmod?
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