Hi Chris, Thank you for the patch! Perhaps something to improve: url: https://github.com/0day-ci/linux/commits/Chris-Wilson/drm-i915-selftests-Verify-whitelist-of-context-registers/20190416-105231 base: git://anongit.freedesktop.org/drm-intel for-linux-next New smatch warnings: drivers/gpu/drm/i915/selftests/intel_workarounds.c:846 scrub_whitelisted_registers() error: uninitialized symbol 'err'. # https://github.com/0day-ci/linux/commit/a9ce77a003ecaa54f530f1e9ff81cbae11380380 git remote add linux-review https://github.com/0day-ci/linux git remote update linux-review git checkout a9ce77a003ecaa54f530f1e9ff81cbae11380380 vim +/PTR_ERR +759 drivers/gpu/drm/i915/selftests/intel_workarounds.c a9ce77a0 Chris Wilson 2019-04-15 794 static int scrub_whitelisted_registers(struct i915_gem_context *ctx, a9ce77a0 Chris Wilson 2019-04-15 795 struct intel_engine_cs *engine) a9ce77a0 Chris Wilson 2019-04-15 796 { a9ce77a0 Chris Wilson 2019-04-15 797 intel_wakeref_t wakeref; a9ce77a0 Chris Wilson 2019-04-15 798 struct i915_request *rq; a9ce77a0 Chris Wilson 2019-04-15 799 struct i915_vma *batch; a9ce77a0 Chris Wilson 2019-04-15 800 int i, err; a9ce77a0 Chris Wilson 2019-04-15 801 u32 *cs; a9ce77a0 Chris Wilson 2019-04-15 802 a9ce77a0 Chris Wilson 2019-04-15 803 batch = create_batch(ctx); a9ce77a0 Chris Wilson 2019-04-15 804 if (IS_ERR(batch)) a9ce77a0 Chris Wilson 2019-04-15 805 return PTR_ERR(batch); a9ce77a0 Chris Wilson 2019-04-15 806 a9ce77a0 Chris Wilson 2019-04-15 807 cs = i915_gem_object_pin_map(batch->obj, I915_MAP_WC); a9ce77a0 Chris Wilson 2019-04-15 808 if (IS_ERR(cs)) { a9ce77a0 Chris Wilson 2019-04-15 809 err = PTR_ERR(cs); a9ce77a0 Chris Wilson 2019-04-15 810 goto err_batch; a9ce77a0 Chris Wilson 2019-04-15 811 } a9ce77a0 Chris Wilson 2019-04-15 812 a9ce77a0 Chris Wilson 2019-04-15 813 *cs++ = MI_LOAD_REGISTER_IMM(engine->whitelist.count); a9ce77a0 Chris Wilson 2019-04-15 814 for (i = 0; i < engine->whitelist.count; i++) { a9ce77a0 Chris Wilson 2019-04-15 815 *cs++ = i915_mmio_reg_offset(engine->whitelist.list[i].reg); a9ce77a0 Chris Wilson 2019-04-15 816 *cs++ = STACK_MAGIC; a9ce77a0 Chris Wilson 2019-04-15 817 } a9ce77a0 Chris Wilson 2019-04-15 818 *cs++ = MI_BATCH_BUFFER_END; a9ce77a0 Chris Wilson 2019-04-15 819 a9ce77a0 Chris Wilson 2019-04-15 820 i915_gem_object_flush_map(batch->obj); a9ce77a0 Chris Wilson 2019-04-15 821 i915_gem_chipset_flush(ctx->i915); a9ce77a0 Chris Wilson 2019-04-15 822 a9ce77a0 Chris Wilson 2019-04-15 823 rq = ERR_PTR(-ENODEV); a9ce77a0 Chris Wilson 2019-04-15 824 with_intel_runtime_pm(engine->i915, wakeref) a9ce77a0 Chris Wilson 2019-04-15 825 rq = i915_request_alloc(engine, ctx); a9ce77a0 Chris Wilson 2019-04-15 826 if (IS_ERR(rq)) a9ce77a0 Chris Wilson 2019-04-15 827 goto err_unpin; ^^^^^^^^^^^^^^ "err" not set. a9ce77a0 Chris Wilson 2019-04-15 828 a9ce77a0 Chris Wilson 2019-04-15 829 if (engine->emit_init_breadcrumb) { /* Be nice if we hang */ a9ce77a0 Chris Wilson 2019-04-15 830 err = engine->emit_init_breadcrumb(rq); a9ce77a0 Chris Wilson 2019-04-15 831 if (err) a9ce77a0 Chris Wilson 2019-04-15 832 goto err_request; a9ce77a0 Chris Wilson 2019-04-15 833 } a9ce77a0 Chris Wilson 2019-04-15 834 a9ce77a0 Chris Wilson 2019-04-15 835 err = engine->emit_bb_start(rq, batch->node.start, 0, 0); a9ce77a0 Chris Wilson 2019-04-15 836 a9ce77a0 Chris Wilson 2019-04-15 837 err_request: a9ce77a0 Chris Wilson 2019-04-15 838 i915_request_add(rq); a9ce77a0 Chris Wilson 2019-04-15 839 if (i915_request_wait(rq, I915_WAIT_LOCKED, HZ / 5) < 0) a9ce77a0 Chris Wilson 2019-04-15 840 err = -EIO; a9ce77a0 Chris Wilson 2019-04-15 841 a9ce77a0 Chris Wilson 2019-04-15 842 err_unpin: a9ce77a0 Chris Wilson 2019-04-15 843 i915_gem_object_unpin_map(batch->obj); a9ce77a0 Chris Wilson 2019-04-15 844 err_batch: a9ce77a0 Chris Wilson 2019-04-15 845 i915_vma_unpin_and_release(&batch, 0); a9ce77a0 Chris Wilson 2019-04-15 @846 return err; a9ce77a0 Chris Wilson 2019-04-15 847 } a9ce77a0 Chris Wilson 2019-04-15 848 --- 0-DAY kernel test infrastructure Open Source Technology Center https://lists.01.org/pipermail/kbuild-all Intel Corporation _______________________________________________ Intel-gfx mailing list Intel-gfx@xxxxxxxxxxxxxxxxxxxxx https://lists.freedesktop.org/mailman/listinfo/intel-gfx
