On Tue, May 23, 2017 at 12:48 AM, Solar Designer <solar@xxxxxxxxxxxx> wrote: > For modules_autoload_mode=2, we already seem to have the equivalent of > modprobe=/bin/true (or does it differ subtly, maybe in return values?), > which I already use at startup on a GPU box like this (preloading > modules so that the OpenCL backends wouldn't need the autoloading): > > nvidia-smi > nvidia-modprobe -u -c=0 > #modprobe nvidia_uvm > #modprobe fglrx > > sysctl -w kernel.modprobe=/bin/true > sysctl -w kernel.hotplug=/bin/true > > but it's good to also have this supported more explicitly and more > consistently through modules_autoload_mode=2 while we're at it. So I > support having this mode as well. I just question the need to have it > non-resettable. I agree it's useful to have the explicit =2 state just to avoid confusion when more systems start implementing CONFIG_STATIC_USERMODEHELPER and kernel.modprobe becomes read-only (though the userspace implementation may allow for some way to disable it, etc). I just like avoiding the upcall to modprobe at all. -Kees -- Kees Cook Pixel Security -- To unsubscribe from this list: send the line "unsubscribe linux-api" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
