Hi Arnd, FYI, the error/warning still remains.
tree: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master head: 0dad3a3014a0b9e72521ff44f17e0054f43dcdea commit: a76bcf557ef408b368cf26f52a60865bfc27b632 Kbuild: enable -Wmaybe-uninitialized warning for "make W=1" date: 7 weeks ago config: x86_64-randconfig-s0-12271426 (attached as .config) compiler: gcc-4.4 (Debian 4.4.7-8) 4.4.7 reproduce: git checkout a76bcf557ef408b368cf26f52a60865bfc27b632 # save the attached .config to linux build tree make ARCH=x86_64 All errors (new ones prefixed by >>): cc1: warnings being treated as errors drivers/gpu/drm/i915/i915_gem_gtt.c: In function 'gen8_ggtt_insert_entries': drivers/gpu/drm/i915/i915_gem_gtt.c:2341: error: 'gtt_entry' may be used uninitialized in this function drivers/gpu/drm/i915/i915_gem_gtt.c: In function 'gen6_ggtt_insert_entries': drivers/gpu/drm/i915/i915_gem_gtt.c:2438: error: 'gtt_entry' may be used uninitialized in this function At top level: >> cc1: error: unrecognized command line option "-Wno-maybe-uninitialized" -- cc1: warnings being treated as errors drivers/gpu/drm/i915/i915_gem.c: In function 'i915_gem_object_map': drivers/gpu/drm/i915/i915_gem.c:2382: error: 'pgprot.pgprot' may be used uninitialized in this function At top level: >> cc1: error: unrecognized command line option "-Wno-maybe-uninitialized" -- cc1: warnings being treated as errors drivers/gpu/drm/i915/intel_ringbuffer.c: In function 'intel_ring_setup_status_page': drivers/gpu/drm/i915/intel_ringbuffer.c:438: error: 'mmio.reg' may be used uninitialized in this function At top level: >> cc1: error: unrecognized command line option "-Wno-maybe-uninitialized" --- 0-DAY kernel test infrastructure Open Source Technology Center https://lists.01.org/pipermail/kbuild-all Intel Corporation
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