drm/i915: Avoid compiler warning for maybe unused gu_misc_iir
/kisskb/src/drivers/gpu/drm/i915/i915_irq.c: warning: 'gu_misc_iir' may be used uninitialized in this function [-Wuninitialized]: => 3120:10 Silence the compiler warning by ensuring that the local variable is initialised and removing the guard that is confusing the older gcc. Reported-by: NGeert Uytterhoeven <geert@linux-m68k.org> Fixes: df0d28c1 ("drm/i915/icl: GSE interrupt moves from DE_MISC to GU_MISC") Signed-off-by: NChris Wilson <chris@chris-wilson.co.uk> Cc: Mika Kuoppala <mika.kuoppala@linux.intel.com> Cc: Paulo Zanoni <paulo.r.zanoni@intel.com> Reviewed-by: NMika Kuoppala <mika.kuoppala@linux.intel.com> Link: https://patchwork.freedesktop.org/patch/msgid/20180926104718.17462-1-chris@chris-wilson.co.uk (cherry picked from commit 7a90938332d80faf973fbcffdf6e674e7b8f0914) Signed-off-by: NRodrigo Vivi <rodrigo.vivi@intel.com>
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