modprobe_path & hotplug_path

modprobe_path & hotplug_path

[Vadim Lobanov]

Hi,

Just wanted to inquire about something curious that I saw in the kernel 
subtree...

Currently modprobe_path and hotplug_path are declared as "char ...[256]", 
though it seems to me (unless I've missed something), that they only ever 
hold "/sbin/modprobe" and "/sbin/hotplug", respectively. Any reason why we 
couldn't simply declare them "char ...[]", and let them be sized 
appropriately?

Let me know if I've missed something.

Thanks,
Vadim Lobanov

(no subject)

[Scott C. Batura]

unsubscribe linux-kernel

Re: modprobe_path & hotplug_path

[Brian Gerst]

Vadim Lobanov wrote:
> Hi,
> 
> Just wanted to inquire about something curious that I saw in the kernel 
> subtree...
> 
> Currently modprobe_path and hotplug_path are declared as "char ...[256]", 
> though it seems to me (unless I've missed something), that they only ever 
> hold "/sbin/modprobe" and "/sbin/hotplug", respectively. Any reason why we 
> couldn't simply declare them "char ...[]", and let them be sized 
> appropriately?
> 
> Let me know if I've missed something.
> 
> Thanks,
> Vadim Lobanov

Because userspace can change them.

--
				Brian Gerst

Re: modprobe_path & hotplug_path

[Horst von Brand]

Vadim Lobanov <vadim@cs.washington.edu> said:
> Currently modprobe_path and hotplug_path are declared as "char ...[256]", 
> though it seems to me (unless I've missed something), that they only ever 
> hold "/sbin/modprobe" and "/sbin/hotplug", respectively. Any reason why we 
> couldn't simply declare them "char ...[]", and let them be sized 
> appropriately?

They can be modified by writing into appropiate /proc files.
-- 
Dr. Horst H. von Brand                   User #22616 counter.li.org
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