On Thu, Apr 25, 2019 at 11:25 PM Johannes Berg
wrote:
> On Thu, 2019-04-25 at 17:55 +0200, Arnd Bergmann wrote:
> > On Thu, Apr 25, 2019 at 5:35 PM Al Viro wrote:
> > >
> > > On Thu, Apr 25, 2019 at 12:21:53PM -0300, Mauro Carvalho Chehab wrote:
> > >
> > > > If I understand your patch descriptio
On Thu, 2019-04-25 at 17:55 +0200, Arnd Bergmann wrote:
> On Thu, Apr 25, 2019 at 5:35 PM Al Viro wrote:
> >
> > On Thu, Apr 25, 2019 at 12:21:53PM -0300, Mauro Carvalho Chehab wrote:
> >
> > > If I understand your patch description well, using compat_ptr_ioctl
> > > only works if the driver is
On Thu, Apr 25, 2019 at 05:55:23PM +0200, Arnd Bergmann wrote:
> On Thu, Apr 25, 2019 at 5:35 PM Al Viro wrote:
> >
> > On Thu, Apr 25, 2019 at 12:21:53PM -0300, Mauro Carvalho Chehab wrote:
> >
> > > If I understand your patch description well, using compat_ptr_ioctl
> > > only works if the drive
On Thu, Apr 25, 2019 at 12:21:53PM -0300, Mauro Carvalho Chehab wrote:
> If I understand your patch description well, using compat_ptr_ioctl
> only works if the driver is not for s390, right?
No; s390 is where "oh, just set ->compat_ioctl same as ->unlocked_ioctl
and be done with that; compat_ptr
On Thu, Apr 25, 2019 at 5:35 PM Al Viro wrote:
>
> On Thu, Apr 25, 2019 at 12:21:53PM -0300, Mauro Carvalho Chehab wrote:
>
> > If I understand your patch description well, using compat_ptr_ioctl
> > only works if the driver is not for s390, right?
>
> No; s390 is where "oh, just set ->compat_ioct
Em Thu, 25 Apr 2019 16:35:34 +0100
Al Viro escreveu:
> On Thu, Apr 25, 2019 at 12:21:53PM -0300, Mauro Carvalho Chehab wrote:
>
> > If I understand your patch description well, using compat_ptr_ioctl
> > only works if the driver is not for s390, right?
>
> No; s390 is where "oh, just set ->co
Em Tue, 16 Apr 2019 22:25:33 +0200
Arnd Bergmann escreveu:
> The .ioctl and .compat_ioctl file operations have the same prototype so
> they can both point to the same function, which works great almost all
> the time when all the commands are compatible.
>
> One exception is the s390 architectur
On Thu, Apr 25, 2019 at 5:22 PM Mauro Carvalho Chehab
wrote:
> Em Tue, 16 Apr 2019 22:25:33 +0200 Arnd Bergmann escreveu:
>
> If I understand your patch description well, using compat_ptr_ioctl
> only works if the driver is not for s390, right?
No, the purpose of compat_ptr_ioctl() is to make su
