tree: git://anongit.freedesktop.org/drm-intel drm-intel-gt-next head: ca06f93638362bf83584cdf33897822bf1578cf9 commit: 0eee9977f9d3d8f1e40175dada55b3d00121ac79 [29/30] drm/i915/gem: Roll all of context creation together config: x86_64-randconfig-s022-20210715 (attached as .config) compiler: gcc-10 (Ubuntu 10.3.0-1ubuntu1~20.04) 10.3.0 reproduce: # apt-get install sparse # sparse version: v0.6.3-341-g8af24329-dirty git remote add drm-intel git://anongit.freedesktop.org/drm-intel git fetch --no-tags drm-intel drm-intel-gt-next git checkout 0eee9977f9d3d8f1e40175dada55b3d00121ac79 # save the attached .config to linux build tree make W=1 C=1 CF='-fdiagnostic-prefix -D__CHECK_ENDIAN__' ARCH=x86_64 If you fix the issue, kindly add following tag as appropriate Reported-by: kernel test robot <lkp(a)intel.com&gt; sparse warnings: (new ones prefixed by >>) drivers/gpu/drm/i915/gem/i915_gem_context.c:1412:34: sparse: sparse: incorrect type in argument 1 (different address spaces) @@ expected struct i915_address_space *vm @@ got struct i915_address_space [noderef] __rcu *vm @@ drivers/gpu/drm/i915/gem/i915_gem_context.c:1412:34: sparse: expected struct i915_address_space *vm drivers/gpu/drm/i915/gem/i915_gem_context.c:1412:34: sparse: got struct i915_address_space [noderef] __rcu *vm drivers/gpu/drm/i915/gem/i915_gem_context.c: note: in included file: drivers/gpu/drm/i915/gem/selftests/mock_context.c:43:25: sparse: expected struct i915_address_space [noderef] __rcu *vm drivers/gpu/drm/i915/gem/selftests/mock_context.c:43:25: sparse: got struct i915_address_space * drivers/gpu/drm/i915/gem/selftests/mock_context.c:60:34: sparse: expected struct i915_address_space *vm drivers/gpu/drm/i915/gem/selftests/mock_context.c:60:34: sparse: got struct i915_address_space [noderef] __rcu *vm vim +43 drivers/gpu/drm/i915/gem/selftests/mock_context.c 10 11 struct i915_gem_context * 12 mock_context(struct drm_i915_private *i915, 13 const char *name) 14 { 15 struct i915_gem_context *ctx; 16 struct i915_gem_engines *e; 17 struct intel_sseu null_sseu = {}; 18 19 ctx = kzalloc(sizeof(*ctx), GFP_KERNEL); 20 if (!ctx) 21 return NULL; 22 23 kref_init(&ctx->ref); 24 INIT_LIST_HEAD(&ctx->link); 25 ctx->i915 = i915; 26 27 mutex_init(&ctx->mutex); 28 29 spin_lock_init(&ctx->stale.lock); 30 INIT_LIST_HEAD(&ctx->stale.engines); 31 32 i915_gem_context_set_persistence(ctx); 33 34 if (name) { 35 struct i915_ppgtt *ppgtt; 36 37 strncpy(ctx->name, name, sizeof(ctx->name) - 1); 38 39 ppgtt = mock_ppgtt(i915, name); 40 if (!ppgtt) 41 goto err_free; 42 44 i915_vm_put(&ppgtt->vm); 45 } 46 47 mutex_init(&ctx->engines_mutex); 48 e = default_engines(ctx, null_sseu); 49 if (IS_ERR(e)) 50 goto err_vm; 51 RCU_INIT_POINTER(ctx->engines, e); 52 53 INIT_RADIX_TREE(&ctx->handles_vma, GFP_KERNEL); 54 mutex_init(&ctx->lut_mutex); 55 56 return ctx; 57 58 err_vm: 59 if (ctx->vm) 61 err_free: 62 kfree(ctx); 63 return NULL; 64 } 65 --- 0-DAY CI Kernel Test Service, Intel Corporation https://lists.01.org/hyperkitty/list/kbuild-all@lists.01.org