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Date: Wed, 29 May 2019 18:04:35 +0300 From: Jani Nikula <jani.nikula@...ux.intel.com> To: Colin King <colin.king@...onical.com>, Joonas Lahtinen <joonas.lahtinen@...ux.intel.com>, Rodrigo Vivi <rodrigo.vivi@...el.com>, David Airlie <airlied@...ux.ie>, Daniel Vetter <daniel@...ll.ch>, intel-gfx@...ts.freedesktop.org, dri-devel@...ts.freedesktop.org Cc: kernel-janitors@...r.kernel.org, linux-kernel@...r.kernel.org, Stuart Summers <stuart.summers@...el.com>, Daniele Ceraolo Spurio <daniele.ceraolospurio@...el.com> Subject: Re: [PATCH][next] drm/i915: fix uninitialized variable 'subslice_mask' On Wed, 29 May 2019, Colin King <colin.king@...onical.com> wrote: > From: Colin Ian King <colin.king@...onical.com> > > Currently subslice_mask is not initialized and so data is being > bit-wise or'd into a garbage value. Fix this by inintializing > subslice_mask to zero. > > Addresses-Coverity: ("Uninitialized scalar variable") > Fixes: 1ac159e23c2c ("drm/i915: Expand subslice mask") This was already reverted for other reasons. Need to be fixed on the next round. For future reference, please Cc: author and reviewers of the referenced commit. BR, Jani. > Signed-off-by: Colin Ian King <colin.king@...onical.com> > --- > drivers/gpu/drm/i915/intel_device_info.c | 2 +- > 1 file changed, 1 insertion(+), 1 deletion(-) > > diff --git a/drivers/gpu/drm/i915/intel_device_info.c b/drivers/gpu/drm/i915/intel_device_info.c > index 3625f777f3a3..d395a09b994f 100644 > --- a/drivers/gpu/drm/i915/intel_device_info.c > +++ b/drivers/gpu/drm/i915/intel_device_info.c > @@ -298,7 +298,7 @@ static void cherryview_sseu_info_init(struct drm_i915_private *dev_priv) > { > struct sseu_dev_info *sseu = &RUNTIME_INFO(dev_priv)->sseu; > u32 fuse; > - u8 subslice_mask; > + u8 subslice_mask = 0; > > fuse = I915_READ(CHV_FUSE_GT); -- Jani Nikula, Intel Open Source Graphics Center
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