From mboxrd@z Thu Jan 1 00:00:00 1970 Content-Type: multipart/mixed; boundary="===============5601574813298583290==" MIME-Version: 1.0 From: kernel test robot Subject: drivers/gpu/drm/i915/gt/selftest_migrate.c:182 clear() error: uninitialized symbol 'rq'. Date: Sun, 28 Nov 2021 05:19:03 +0800 Message-ID: <202111280537.jaQt4TBM-lkp@intel.com> List-Id: To: kbuild@lists.01.org --===============5601574813298583290== Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable CC: kbuild-all(a)lists.01.org CC: linux-kernel(a)vger.kernel.org TO: Chris Wilson CC: Matthew Auld CC: "Thomas Hellstr=C3=B6m" tree: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git = master head: 86799cdfbcd2308cbad6c1dc983b81595b77b639 commit: 563baae1875cbcac332086cca325cf55a0532b9e drm/i915/gt: Pipelined cle= ar date: 5 months ago :::::: branch date: 2 hours ago :::::: commit date: 5 months ago config: i386-randconfig-m021-20211116 (https://download.01.org/0day-ci/arch= ive/20211128/202111280537.jaQt4TBM-lkp(a)intel.com/config) compiler: gcc-9 (Debian 9.3.0-22) 9.3.0 If you fix the issue, kindly add following tag as appropriate Reported-by: kernel test robot Reported-by: Dan Carpenter New smatch warnings: drivers/gpu/drm/i915/gt/selftest_migrate.c:182 clear() error: uninitialized= symbol 'rq'. drivers/gpu/drm/i915/gt/selftest_migrate.c:193 clear() error: uninitialized= symbol 'vaddr'. Old smatch warnings: drivers/gpu/drm/i915/gt/selftest_migrate.c:102 copy() error: uninitialized = symbol 'rq'. drivers/gpu/drm/i915/gt/selftest_migrate.c:113 copy() error: uninitialized = symbol 'vaddr'. drivers/gpu/drm/i915/gem/i915_gem_object.h:182 __i915_gem_object_lock() err= or: we previously assumed 'ww' could be null (see line 171) vim +/rq +182 drivers/gpu/drm/i915/gt/selftest_migrate.c cf586021642d80 Chris Wilson 2021-06-17 131 = 563baae1875cbc Chris Wilson 2021-06-17 132 static int clear(struct intel_= migrate *migrate, 563baae1875cbc Chris Wilson 2021-06-17 133 int (*fn)(struct intel_migr= ate *migrate, 563baae1875cbc Chris Wilson 2021-06-17 134 struct i915_gem_ww_ctx *= ww, 563baae1875cbc Chris Wilson 2021-06-17 135 struct drm_i915_gem_obje= ct *obj, 563baae1875cbc Chris Wilson 2021-06-17 136 u32 value, 563baae1875cbc Chris Wilson 2021-06-17 137 struct i915_request **ou= t), 563baae1875cbc Chris Wilson 2021-06-17 138 u32 sz, struct rnd_state *p= rng) 563baae1875cbc Chris Wilson 2021-06-17 139 { 563baae1875cbc Chris Wilson 2021-06-17 140 struct drm_i915_private *i915= =3D migrate->context->engine->i915; 563baae1875cbc Chris Wilson 2021-06-17 141 struct drm_i915_gem_object *o= bj; 563baae1875cbc Chris Wilson 2021-06-17 142 struct i915_request *rq; 563baae1875cbc Chris Wilson 2021-06-17 143 struct i915_gem_ww_ctx ww; 563baae1875cbc Chris Wilson 2021-06-17 144 u32 *vaddr; 563baae1875cbc Chris Wilson 2021-06-17 145 int err =3D 0; 563baae1875cbc Chris Wilson 2021-06-17 146 int i; 563baae1875cbc Chris Wilson 2021-06-17 147 = 563baae1875cbc Chris Wilson 2021-06-17 148 obj =3D create_lmem_or_intern= al(i915, sz); 563baae1875cbc Chris Wilson 2021-06-17 149 if (IS_ERR(obj)) 563baae1875cbc Chris Wilson 2021-06-17 150 return 0; 563baae1875cbc Chris Wilson 2021-06-17 151 = 563baae1875cbc Chris Wilson 2021-06-17 152 for_i915_gem_ww(&ww, err, tru= e) { 563baae1875cbc Chris Wilson 2021-06-17 153 err =3D i915_gem_object_lock= (obj, &ww); 563baae1875cbc Chris Wilson 2021-06-17 154 if (err) 563baae1875cbc Chris Wilson 2021-06-17 155 continue; 563baae1875cbc Chris Wilson 2021-06-17 156 = 563baae1875cbc Chris Wilson 2021-06-17 157 vaddr =3D i915_gem_object_pi= n_map(obj, I915_MAP_WC); 563baae1875cbc Chris Wilson 2021-06-17 158 if (IS_ERR(vaddr)) { 563baae1875cbc Chris Wilson 2021-06-17 159 err =3D PTR_ERR(vaddr); 563baae1875cbc Chris Wilson 2021-06-17 160 continue; 563baae1875cbc Chris Wilson 2021-06-17 161 } 563baae1875cbc Chris Wilson 2021-06-17 162 = 563baae1875cbc Chris Wilson 2021-06-17 163 for (i =3D 0; i < sz / sizeo= f(u32); i++) 563baae1875cbc Chris Wilson 2021-06-17 164 vaddr[i] =3D ~i; 563baae1875cbc Chris Wilson 2021-06-17 165 i915_gem_object_flush_map(ob= j); 563baae1875cbc Chris Wilson 2021-06-17 166 = 563baae1875cbc Chris Wilson 2021-06-17 167 err =3D fn(migrate, &ww, obj= , sz, &rq); 563baae1875cbc Chris Wilson 2021-06-17 168 if (!err) 563baae1875cbc Chris Wilson 2021-06-17 169 continue; 563baae1875cbc Chris Wilson 2021-06-17 170 = 563baae1875cbc Chris Wilson 2021-06-17 171 if (err !=3D -EDEADLK && err= !=3D -EINTR && err !=3D -ERESTARTSYS) 563baae1875cbc Chris Wilson 2021-06-17 172 pr_err("%ps failed, size: %= u\n", fn, sz); 563baae1875cbc Chris Wilson 2021-06-17 173 if (rq) { 563baae1875cbc Chris Wilson 2021-06-17 174 i915_request_wait(rq, 0, HZ= ); 563baae1875cbc Chris Wilson 2021-06-17 175 i915_request_put(rq); 563baae1875cbc Chris Wilson 2021-06-17 176 } 563baae1875cbc Chris Wilson 2021-06-17 177 i915_gem_object_unpin_map(ob= j); 563baae1875cbc Chris Wilson 2021-06-17 178 } 563baae1875cbc Chris Wilson 2021-06-17 179 if (err) 563baae1875cbc Chris Wilson 2021-06-17 180 goto err_out; 563baae1875cbc Chris Wilson 2021-06-17 181 = 563baae1875cbc Chris Wilson 2021-06-17 @182 if (rq) { 563baae1875cbc Chris Wilson 2021-06-17 183 if (i915_request_wait(rq, 0,= HZ) < 0) { 563baae1875cbc Chris Wilson 2021-06-17 184 pr_err("%ps timed out, size= : %u\n", fn, sz); 563baae1875cbc Chris Wilson 2021-06-17 185 err =3D -ETIME; 563baae1875cbc Chris Wilson 2021-06-17 186 } 563baae1875cbc Chris Wilson 2021-06-17 187 i915_request_put(rq); 563baae1875cbc Chris Wilson 2021-06-17 188 } 563baae1875cbc Chris Wilson 2021-06-17 189 = 563baae1875cbc Chris Wilson 2021-06-17 190 for (i =3D 0; !err && i < sz = / PAGE_SIZE; i++) { 563baae1875cbc Chris Wilson 2021-06-17 191 int x =3D i * 1024 + i915_pr= andom_u32_max_state(1024, prng); 563baae1875cbc Chris Wilson 2021-06-17 192 = 563baae1875cbc Chris Wilson 2021-06-17 @193 if (vaddr[x] !=3D sz) { 563baae1875cbc Chris Wilson 2021-06-17 194 pr_err("%ps failed, size: %= u, offset: %zu\n", 563baae1875cbc Chris Wilson 2021-06-17 195 fn, sz, x * sizeof(u= 32)); 563baae1875cbc Chris Wilson 2021-06-17 196 igt_hexdump(vaddr + i * 102= 4, 4096); 563baae1875cbc Chris Wilson 2021-06-17 197 err =3D -EINVAL; 563baae1875cbc Chris Wilson 2021-06-17 198 } 563baae1875cbc Chris Wilson 2021-06-17 199 } 563baae1875cbc Chris Wilson 2021-06-17 200 = 563baae1875cbc Chris Wilson 2021-06-17 201 i915_gem_object_unpin_map(obj= ); 563baae1875cbc Chris Wilson 2021-06-17 202 err_out: 563baae1875cbc Chris Wilson 2021-06-17 203 i915_gem_object_put(obj); 563baae1875cbc Chris Wilson 2021-06-17 204 = 563baae1875cbc Chris Wilson 2021-06-17 205 return err; 563baae1875cbc Chris Wilson 2021-06-17 206 } 563baae1875cbc Chris Wilson 2021-06-17 207 = --- 0-DAY CI Kernel Test Service, Intel Corporation https://lists.01.org/hyperkitty/list/kbuild-all@lists.01.org --===============5601574813298583290==--