linux-kernel - Re: [PATCH][next] drm/amdgpu: Fix masking binary not operator on two mask operations

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Message-ID: <CADnq5_PgXRv5LKO=yhx6NnYE4Et_PHa45JArAjorJ6W-GiDG2A@mail.gmail.com>
Date:   Mon, 25 Jan 2021 10:06:58 -0500
From:   Alex Deucher <alexdeucher@...il.com>
To:     Huang Rui <ray.huang@....com>
Cc:     Colin King <colin.king@...onical.com>,
        David Airlie <airlied@...ux.ie>,
        "kernel-janitors@...r.kernel.org" <kernel-janitors@...r.kernel.org>,
        "Liu, Aaron" <Aaron.Liu@....com>,
        "amd-gfx@...ts.freedesktop.org" <amd-gfx@...ts.freedesktop.org>,
        "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
        "dri-devel@...ts.freedesktop.org" <dri-devel@...ts.freedesktop.org>,
        Daniel Vetter <daniel@...ll.ch>,
        "Deucher, Alexander" <Alexander.Deucher@....com>,
        "Koenig, Christian" <Christian.Koenig@....com>
Subject: Re: [PATCH][next] drm/amdgpu: Fix masking binary not operator on two
 mask operations

Applied.  Thanks!

Alex

On Sun, Jan 24, 2021 at 11:36 PM Huang Rui <ray.huang@....com> wrote:
>
> On Fri, Jan 22, 2021 at 11:00:22PM +0800, Colin King wrote:
> > From: Colin Ian King <colin.king@...onical.com>
> >
> > Currently the ! operator is incorrectly being used to flip bits on
> > mask values. Fix this by using the bit-wise ~ operator instead.
> >
> > Addresses-Coverity: ("Logical vs. bitwise operator")
> > Fixes: 3c9a7b7d6e75 ("drm/amdgpu: update mmhub mgcg&ls for mmhub_v2_3")
> > Signed-off-by: Colin Ian King <colin.king@...onical.com>
>
> Thanks.
>
> Reviewed-by: Huang Rui <ray.huang@....com>
>
> > ---
> >  drivers/gpu/drm/amd/amdgpu/mmhub_v2_3.c | 4 ++--
> >  1 file changed, 2 insertions(+), 2 deletions(-)
> >
> > diff --git a/drivers/gpu/drm/amd/amdgpu/mmhub_v2_3.c b/drivers/gpu/drm/amd/amdgpu/mmhub_v2_3.c
> > index 1961745e89c7..ab9be5ad5a5f 100644
> > --- a/drivers/gpu/drm/amd/amdgpu/mmhub_v2_3.c
> > +++ b/drivers/gpu/drm/amd/amdgpu/mmhub_v2_3.c
> > @@ -531,12 +531,12 @@ mmhub_v2_3_update_medium_grain_light_sleep(struct amdgpu_device *adev,
> >
> >       if (enable && (adev->cg_flags & AMD_CG_SUPPORT_MC_LS)) {
> >               data &= ~MM_ATC_L2_CGTT_CLK_CTRL__MGLS_OVERRIDE_MASK;
> > -             data1 &= !(DAGB0_WR_CGTT_CLK_CTRL__LS_OVERRIDE_MASK |
> > +             data1 &= ~(DAGB0_WR_CGTT_CLK_CTRL__LS_OVERRIDE_MASK |
> >                       DAGB0_WR_CGTT_CLK_CTRL__LS_OVERRIDE_WRITE_MASK |
> >                       DAGB0_WR_CGTT_CLK_CTRL__LS_OVERRIDE_READ_MASK |
> >                       DAGB0_WR_CGTT_CLK_CTRL__LS_OVERRIDE_RETURN_MASK |
> >                       DAGB0_WR_CGTT_CLK_CTRL__LS_OVERRIDE_REGISTER_MASK);
> > -             data2 &= !(DAGB0_RD_CGTT_CLK_CTRL__LS_OVERRIDE_MASK |
> > +             data2 &= ~(DAGB0_RD_CGTT_CLK_CTRL__LS_OVERRIDE_MASK |
> >                       DAGB0_RD_CGTT_CLK_CTRL__LS_OVERRIDE_WRITE_MASK |
> >                       DAGB0_RD_CGTT_CLK_CTRL__LS_OVERRIDE_READ_MASK |
> >                       DAGB0_RD_CGTT_CLK_CTRL__LS_OVERRIDE_RETURN_MASK |
> > --
> > 2.29.2
> >
> _______________________________________________
> amd-gfx mailing list
> amd-gfx@...ts.freedesktop.org
> https://lists.freedesktop.org/mailman/listinfo/amd-gfx

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