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SubjectRe: [mac80211] BUG: unable to handle kernel paging request at 6b6b6b8f
On Fri, Jan 24, 2014 at 01:17:50PM +0100, Johannes Berg wrote:
> On Fri, 2014-01-24 at 20:08 +0800, Fengguang Wu wrote:
> > Hi Johannes,
> >
> > The BUG does not show up in linux-next 20140124, is it fixed now?
>
> It isn't in linux-next yet I believe (mac80211-next isn't in there), but
> yeah, I fixed it already, ran into it myself yesterday. Hope it didn't
> cause you too much trouble.

That's great, you are quick hand! It's not problem at all for me. :)

Thanks,
Fengguang

> The problem was that I misplaced some code
> because I didn't notice that the if () condition (see below) had no
> braces.
>
> I replaced that commit with
> commit 091a69f86862454c282d4a64c9d66074e60514ea
> Author: Johannes Berg <johannes.berg@intel.com>
> Date: Wed Jan 22 10:36:59 2014 +0100
>
> mac80211: remove module handling from rate control ops
>
> which now contains this change
>
> list_for_each_entry(alg, &rate_ctrl_algs, list) {
> - if (!strcmp(alg->ops->name, name))
> - if (try_module_get(alg->ops->module)) {
> - ops = alg->ops;
> - break;
> - }
> + if (!strcmp(alg->ops->name, name)) {
> + ops = alg->ops;
> + break;
> + }
> }
>
> (note the new set of braces added around the content of the strcmp if)
>
> Sorry!
>
> johannes
>


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