Re: [PATCH] request_firmware: skip timeout if userspace was not notified

From: Kay Sievers
Date: Tue Aug 07 2007 - 08:32:01 EST


On 8/7/07, Cornelia Huck <cornelia.huck@xxxxxxxxxx> wrote:
> On Tue, 7 Aug 2007 13:46:55 +0200,
> "Kay Sievers" <kay.sievers@xxxxxxxx> wrote:
>
> > > - Use an extra parameter in which successful delivery can be indicated.
> > > Make this
> > > int kobject_uevent_env_check(struct kobject *kobject,
> > > enum kobject_action action,
> > > char *envp[], int delivered);
> > > so existing callers that don't care don't have to be changed.
> >
> > How do you check if events have been "handled"? None of the recent
> > distros uses /sbin/hotplug anymore. Netlink events are broadcasted,
> > but no failure in delivery doesn't mean anything like "handled", or
> > delivered to the right instance. Even if you check that the netlink
> > socket has listeners, that wouldn't be sufficient to tell that is is
> > handled.
>
> You can't check if it's been handled, yes; but you can certainly check
> if you delivered it.

The broadcast returns a failure when nobody received the message?

Kay
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