* Clang warning in drivers/gpu/drm/i915/i915_debugfs.c
@ 2019-01-08 19:13 Nathan Chancellor
2019-01-15 10:53 ` Jani Nikula
0 siblings, 1 reply; 2+ messages in thread
From: Nathan Chancellor @ 2019-01-08 19:13 UTC (permalink / raw)
To: Manasi Navare, Rodrigo Vivi; +Cc: intel-gfx, linux-kernel, dri-devel
Hi all,
Commit e845f099f1c6 ("drm/i915/dsc: Add Per connector debugfs node for
DSC support/enable") causes a Clang warning:
drivers/gpu/drm/i915/i915_debugfs.c:4961:17: warning: address of array 'intel_dp->dsc_dpcd' will always evaluate to 'true' [-Wpointer-bool-conversion]
if (intel_dp->dsc_dpcd)
~~ ~~~~~~~~~~^~~~~~~~
1 warning generated.
Did you mean to dereference it or should that print statement just
always show? I normally would send a patch myself but since I'm not
familiar with this code, I'd rather not shoot in the dark :) especially
since it's for a trivial logging statement.
Thanks,
Nathan
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^ permalink raw reply [flat|nested] 2+ messages in thread
* Re: Clang warning in drivers/gpu/drm/i915/i915_debugfs.c
2019-01-08 19:13 Clang warning in drivers/gpu/drm/i915/i915_debugfs.c Nathan Chancellor
@ 2019-01-15 10:53 ` Jani Nikula
0 siblings, 0 replies; 2+ messages in thread
From: Jani Nikula @ 2019-01-15 10:53 UTC (permalink / raw)
To: Nathan Chancellor, Manasi Navare, Rodrigo Vivi
Cc: intel-gfx, linux-kernel, dri-devel
On Tue, 08 Jan 2019, Nathan Chancellor <natechancellor@gmail.com> wrote:
> Hi all,
>
> Commit e845f099f1c6 ("drm/i915/dsc: Add Per connector debugfs node for
> DSC support/enable") causes a Clang warning:
>
> drivers/gpu/drm/i915/i915_debugfs.c:4961:17: warning: address of array 'intel_dp->dsc_dpcd' will always evaluate to 'true' [-Wpointer-bool-conversion]
> if (intel_dp->dsc_dpcd)
> ~~ ~~~~~~~~~~^~~~~~~~
> 1 warning generated.
>
> Did you mean to dereference it or should that print statement just
> always show? I normally would send a patch myself but since I'm not
> familiar with this code, I'd rather not shoot in the dark :) especially
> since it's for a trivial logging statement.
Fixed by fed85691b408 ("drm/i915: Fix the static code analysis warning
in debugfs"), thanks for the report & review on that one.
BR,
Jani.
--
Jani Nikula, Intel Open Source Graphics Center
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https://lists.freedesktop.org/mailman/listinfo/intel-gfx
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