Hi Chris, Thank you for the patch! Yet something to improve: [auto build test ERROR on drm-intel/for-linux-next] [cannot apply to v5.3-rc4] [if your patch is applied to the wrong git tree, please drop us a note to help improve the system] url: https://github.com/0day-ci/linux/commits/Chris-Wilson/drm-i915-execlists-Lift-process_csb-out-of-the-irq-off-spinlock/20190812-211057 base: git://anongit.freedesktop.org/drm-intel for-linux-next config: i386-defconfig (attached as .config) compiler: gcc-7 (Debian 7.4.0-10) 7.4.0 reproduce: # save the attached .config to linux build tree make ARCH=i386 If you fix the issue, kindly add following tag Reported-by: kbuild test robot All errors (new ones prefixed by >>): drivers/gpu/drm/i915/gt/uc/intel_guc_submission.c: In function 'schedule_in': >> drivers/gpu/drm/i915/gt/uc/intel_guc_submission.c:541:2: error: implicit declaration of function 'intel_context_inflight_inc'; did you mean 'intel_context_inflight_count'? [-Werror=implicit-function-declaration] intel_context_inflight_inc(rq->hw_context); ^~~~~~~~~~~~~~~~~~~~~~~~~~ intel_context_inflight_count drivers/gpu/drm/i915/gt/uc/intel_guc_submission.c: In function 'schedule_out': >> drivers/gpu/drm/i915/gt/uc/intel_guc_submission.c:551:2: error: implicit declaration of function 'intel_context_inflight_dec'; did you mean 'intel_context_inflight'? [-Werror=implicit-function-declaration] intel_context_inflight_dec(rq->hw_context); ^~~~~~~~~~~~~~~~~~~~~~~~~~ intel_context_inflight cc1: some warnings being treated as errors vim +541 drivers/gpu/drm/i915/gt/uc/intel_guc_submission.c 77f0d0e925e8a0 drivers/gpu/drm/i915/i915_guc_submission.c Chris Wilson 2017-05-17 534 22b7a426bbe1eb drivers/gpu/drm/i915/intel_guc_submission.c Chris Wilson 2019-06-20 535 static struct i915_request *schedule_in(struct i915_request *rq, int idx) 2a694feb93556e drivers/gpu/drm/i915/intel_guc_submission.c Chris Wilson 2018-04-03 536 { 22b7a426bbe1eb drivers/gpu/drm/i915/intel_guc_submission.c Chris Wilson 2019-06-20 537 trace_i915_request_in(rq, idx); 22b7a426bbe1eb drivers/gpu/drm/i915/intel_guc_submission.c Chris Wilson 2019-06-20 538 22b7a426bbe1eb drivers/gpu/drm/i915/intel_guc_submission.c Chris Wilson 2019-06-20 539 if (!rq->hw_context->inflight) 22b7a426bbe1eb drivers/gpu/drm/i915/intel_guc_submission.c Chris Wilson 2019-06-20 540 rq->hw_context->inflight = rq->engine; 22b7a426bbe1eb drivers/gpu/drm/i915/intel_guc_submission.c Chris Wilson 2019-06-20 @541 intel_context_inflight_inc(rq->hw_context); c7302f204490f3 drivers/gpu/drm/i915/gt/uc/intel_guc_submission.c Chris Wilson 2019-08-08 542 intel_gt_pm_get(rq->engine->gt); 22b7a426bbe1eb drivers/gpu/drm/i915/intel_guc_submission.c Chris Wilson 2019-06-20 543 22b7a426bbe1eb drivers/gpu/drm/i915/intel_guc_submission.c Chris Wilson 2019-06-20 544 return i915_request_get(rq); 2a694feb93556e drivers/gpu/drm/i915/intel_guc_submission.c Chris Wilson 2018-04-03 545 } 2a694feb93556e drivers/gpu/drm/i915/intel_guc_submission.c Chris Wilson 2018-04-03 546 22b7a426bbe1eb drivers/gpu/drm/i915/intel_guc_submission.c Chris Wilson 2019-06-20 547 static void schedule_out(struct i915_request *rq) 2a694feb93556e drivers/gpu/drm/i915/intel_guc_submission.c Chris Wilson 2018-04-03 548 { 22b7a426bbe1eb drivers/gpu/drm/i915/intel_guc_submission.c Chris Wilson 2019-06-20 549 trace_i915_request_out(rq); 22b7a426bbe1eb drivers/gpu/drm/i915/intel_guc_submission.c Chris Wilson 2019-06-20 550 22b7a426bbe1eb drivers/gpu/drm/i915/intel_guc_submission.c Chris Wilson 2019-06-20 @551 intel_context_inflight_dec(rq->hw_context); 22b7a426bbe1eb drivers/gpu/drm/i915/intel_guc_submission.c Chris Wilson 2019-06-20 552 if (!intel_context_inflight_count(rq->hw_context)) 22b7a426bbe1eb drivers/gpu/drm/i915/intel_guc_submission.c Chris Wilson 2019-06-20 553 rq->hw_context->inflight = NULL; 22b7a426bbe1eb drivers/gpu/drm/i915/intel_guc_submission.c Chris Wilson 2019-06-20 554 c7302f204490f3 drivers/gpu/drm/i915/gt/uc/intel_guc_submission.c Chris Wilson 2019-08-08 555 intel_gt_pm_put(rq->engine->gt); 22b7a426bbe1eb drivers/gpu/drm/i915/intel_guc_submission.c Chris Wilson 2019-06-20 556 i915_request_put(rq); 2a694feb93556e drivers/gpu/drm/i915/intel_guc_submission.c Chris Wilson 2018-04-03 557 } 2a694feb93556e drivers/gpu/drm/i915/intel_guc_submission.c Chris Wilson 2018-04-03 558 :::::: The code at line 541 was first introduced by commit :::::: 22b7a426bbe1ebe1520f92da4cd1617d1e1b5fc4 drm/i915/execlists: Preempt-to-busy :::::: TO: Chris Wilson :::::: CC: Chris Wilson --- 0-DAY kernel test infrastructure Open Source Technology Center https://lists.01.org/pipermail/kbuild-all Intel Corporation