linux-kernel - Re: [PATCH 03/12] drm: aspeed_gfx: Fix misuse of GENMASK macro

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]

Date:   Thu, 25 Jul 2019 07:37:14 -0700
From:   Joe Perches <joe@...ches.com>
To:     Joel Stanley <joel@....id.au>
Cc:     Andrew Jeffery <andrew@...id.au>,
        Andrew Morton <akpm@...ux-foundation.org>,
        David Airlie <airlied@...ux.ie>,
        Daniel Vetter <daniel@...ll.ch>, linux-aspeed@...ts.ozlabs.org,
        dri-devel@...ts.freedesktop.org,
        Linux ARM <linux-arm-kernel@...ts.infradead.org>,
        Linux Kernel Mailing List <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH 03/12] drm: aspeed_gfx: Fix misuse of GENMASK macro

On Thu, 2019-07-25 at 02:52 +0000, Joel Stanley wrote:
> On Thu, 25 Jul 2019 at 01:18, Joe Perches <joe@...ches.com> wrote:
> > On Thu, 2019-07-25 at 10:40 +0930, Andrew Jeffery wrote:
> > > On Thu, 25 Jul 2019, at 02:46, Joe Perches wrote:
> > > > On Tue, 2019-07-09 at 22:04 -0700, Joe Perches wrote:
> > > > > Arguments are supposed to be ordered high then low.
> > > > > 
> > > > > Signed-off-by: Joe Perches <joe@...ches.com>
> > > > > ---
> > > > >  drivers/gpu/drm/aspeed/aspeed_gfx.h | 2 +-
> > > > >  1 file changed, 1 insertion(+), 1 deletion(-)
> > > > > 
> > > > > diff --git a/drivers/gpu/drm/aspeed/aspeed_gfx.h b/drivers/gpu/drm/aspeed/aspeed_gfx.h
> > > > > index a10358bb61ec..095ea03e5833 100644
> > > > > --- a/drivers/gpu/drm/aspeed/aspeed_gfx.h
> > > > > +++ b/drivers/gpu/drm/aspeed/aspeed_gfx.h
> > > > > @@ -74,7 +74,7 @@ int aspeed_gfx_create_output(struct drm_device *drm);
> > > > >  /* CTRL2 */
> > > > >  #define CRT_CTRL_DAC_EN                  BIT(0)
> > > > >  #define CRT_CTRL_VBLANK_LINE(x)          (((x) << 20) & CRT_CTRL_VBLANK_LINE_MASK)
> > > > > -#define CRT_CTRL_VBLANK_LINE_MASK        GENMASK(20, 31)
> > > > > +#define CRT_CTRL_VBLANK_LINE_MASK        GENMASK(31, 20)
> > > 
> > > Reviewed-by: Andrew Jeffery <andrew@...id.au>
> > 
> > This hardly needs a review, it needs to be applied.
> > There's a nominal git tree for aspeed here:
> > 
> > T:      git git://git.kernel.org/pub/scm/linux/kernel/git/joel/aspeed.git
> > 
> > But who's going to do apply this?
> 
> This is a DRM patch, so it goes through the DRM tree. I am a
> co-maintainer there and can apply it once I remember how to drive the
> tools.
> 
> (FYI, this macro is not used by the current driver).

Then perhaps CRT_CTRL_VBLANK and _MASK defines
should be removed instead.

cheers, Joe