lkml.org 
[lkml]   [2019]   [Apr]   [18]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
/
Date
From
SubjectRe: [PATCH v3 02/26] compat_ioctl: move simple ppp command handling into driver
On Thu, Apr 18, 2019 at 12:53:00AM +0100, Al Viro wrote:

> Why would you want to duplicate large chunks of anything?
> The above is not even compile-tested, but... I can put
> together a patch if you wish. Or am I missing something
> here?

Actually, there's another broken part - pppox. And that one
is nastier - you've just lost everything outside of protocol
family ioctls on those sockets. Try e.g. SIOCGIFMTU in 32bit
process on those.

We really can't reuse native ->ioctl() there - proto family
->compat_ioctl() *must* return -ENOIOCTLCMD on everything it
doesn't handle.

\
 
 \ /
  Last update: 2019-04-18 07:58    [W:0.074 / U:0.664 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site