[PATCH 01/10] ARM: fix incorrect use of get_kernel_nofault()

[Ard Biesheuvel]

On Tue, 21 Sept 2021 at 16:02, Russell King (Oracle)
<linux at armlinux.org.uk> wrote:
>
> On Tue, Sep 21, 2021 at 11:53:59AM +0200, Ard Biesheuvel wrote:
> > Commit 344179fc7ef4 ("ARM: 9106/1: traps: use get_kernel_nofault instead
> > of set_fs()") replaced an occurrence of __get_user() with
> > get_kernel_nofault(), but inverted the sense of the conditional in the
> > process, resulting in no values to be printed at all.
> >
> > I.e., every exception stack now looks like this:
> >
> > Exception stack(0xc18d1fb0 to 0xc18d1ff8)
> > 1fa0:                                     ???????? ???????? ???????? ????????
> > 1fc0: ???????? ???????? ???????? ???????? ???????? ???????? ???????? ????????
> > 1fe0: ???????? ???????? ???????? ???????? ???????? ????????
> >
> > which is rather unhelpful.
> >
> > Fixes: 344179fc7ef4 ("ARM: 9106/1: traps: use get_kernel_nofault instead of set_fs()")
> > Signed-off-by: Ard Biesheuvel <ardb at kernel.org>
>
> This is definitely a bug fix to one of the previous series, and should
> be independent of the rest of the series.
>
> Please put it in the patch system, thanks.
>

Queued up as 9125/1

-- 
Ard.