[drm-intel:drm-intel-next-queued 23/59] drivers/gpu/drm/i915/selftests/i915_gem_request.c:280: error: 'request' may be used uninitialized in this function

[kbuild test robot]

tree:   git://anongit.freedesktop.org/drm-intel drm-intel-next-queued
head:   d892e9398ecf6defc7972a62227b77dad6be20bd
commit: b348090d6758cc391dc91f8a8233b18f0acc8458 [23/59] drm/i915: Simple selftest to exercise live requests
config: x86_64-randconfig-s2-02141638 (attached as .config)
compiler: gcc-4.4 (Debian 4.4.7-8) 4.4.7
reproduce:
        git checkout b348090d6758cc391dc91f8a8233b18f0acc8458
        # save the attached .config to linux build tree
        make ARCH=x86_64 

Note: it may well be a FALSE warning. FWIW you are at least aware of it now.
http://gcc.gnu.org/wiki/Better_Uninitialized_Warnings

All errors (new ones prefixed by >>):

   cc1: warnings being treated as errors
   In file included from drivers/gpu/drm/i915/i915_gem_request.c:1204:
   drivers/gpu/drm/i915/selftests/i915_gem_request.c: In function 'live_nop_request':
>> drivers/gpu/drm/i915/selftests/i915_gem_request.c:280: error: 'request' may be used uninitialized in this function

vim +/request +280 drivers/gpu/drm/i915/selftests/i915_gem_request.c

   274		 */
   275	
   276		mutex_lock(&i915->drm.struct_mutex);
   277	
   278		for_each_engine(engine, i915, id) {
   279			IGT_TIMEOUT(end_time);
 > 280			struct drm_i915_gem_request *request;
   281			unsigned long n, prime;
   282			ktime_t times[2] = {};
   283	

---
0-DAY kernel test infrastructure                Open Source Technology Center
https://lists.01.org/pipermail/kbuild-all                   Intel Corporation
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