From mboxrd@z Thu Jan 1 00:00:00 1970 Content-Type: multipart/mixed; boundary="===============2154565740150529710==" MIME-Version: 1.0 From: kernel test robot Subject: drivers/gpu/drm/i915/gt/selftest_migrate.c:102 copy() error: uninitialized symbol 'rq'. Date: Thu, 10 Feb 2022 15:39:52 +0800 Message-ID: <202202101512.BQ2yInmB-lkp@intel.com> List-Id: To: kbuild@lists.01.org --===============2154565740150529710== 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: f4bc5bbb5fef3cf421ba3485d6d383c27ec473ed commit: cf586021642d8017cde111b7dd1ba86224e9da51 drm/i915/gt: Pipelined pag= e migration date: 8 months ago :::::: branch date: 14 hours ago :::::: commit date: 8 months ago config: i386-randconfig-m031-20220207 (https://download.01.org/0day-ci/arch= ive/20220210/202202101512.BQ2yInmB-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:102 copy() error: uninitialized = symbol 'rq'. drivers/gpu/drm/i915/gt/selftest_migrate.c:113 copy() error: uninitialized = symbol 'vaddr'. Old smatch warnings: 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 +102 drivers/gpu/drm/i915/gt/selftest_migrate.c cf586021642d80 Chris Wilson 2021-06-17 31 = cf586021642d80 Chris Wilson 2021-06-17 32 static int copy(struct intel_m= igrate *migrate, cf586021642d80 Chris Wilson 2021-06-17 33 int (*fn)(struct intel_migra= te *migrate, cf586021642d80 Chris Wilson 2021-06-17 34 struct i915_gem_ww_ctx *w= w, cf586021642d80 Chris Wilson 2021-06-17 35 struct drm_i915_gem_objec= t *src, cf586021642d80 Chris Wilson 2021-06-17 36 struct drm_i915_gem_objec= t *dst, cf586021642d80 Chris Wilson 2021-06-17 37 struct i915_request **out= ), cf586021642d80 Chris Wilson 2021-06-17 38 u32 sz, struct rnd_state *pr= ng) cf586021642d80 Chris Wilson 2021-06-17 39 { cf586021642d80 Chris Wilson 2021-06-17 40 struct drm_i915_private *i915= =3D migrate->context->engine->i915; cf586021642d80 Chris Wilson 2021-06-17 41 struct drm_i915_gem_object *s= rc, *dst; cf586021642d80 Chris Wilson 2021-06-17 42 struct i915_request *rq; cf586021642d80 Chris Wilson 2021-06-17 43 struct i915_gem_ww_ctx ww; cf586021642d80 Chris Wilson 2021-06-17 44 u32 *vaddr; cf586021642d80 Chris Wilson 2021-06-17 45 int err =3D 0; cf586021642d80 Chris Wilson 2021-06-17 46 int i; cf586021642d80 Chris Wilson 2021-06-17 47 = cf586021642d80 Chris Wilson 2021-06-17 48 src =3D create_lmem_or_intern= al(i915, sz); cf586021642d80 Chris Wilson 2021-06-17 49 if (IS_ERR(src)) cf586021642d80 Chris Wilson 2021-06-17 50 return 0; cf586021642d80 Chris Wilson 2021-06-17 51 = cf586021642d80 Chris Wilson 2021-06-17 52 dst =3D i915_gem_object_creat= e_internal(i915, sz); cf586021642d80 Chris Wilson 2021-06-17 53 if (IS_ERR(dst)) cf586021642d80 Chris Wilson 2021-06-17 54 goto err_free_src; cf586021642d80 Chris Wilson 2021-06-17 55 = cf586021642d80 Chris Wilson 2021-06-17 56 for_i915_gem_ww(&ww, err, tru= e) { cf586021642d80 Chris Wilson 2021-06-17 57 err =3D i915_gem_object_lock= (src, &ww); cf586021642d80 Chris Wilson 2021-06-17 58 if (err) cf586021642d80 Chris Wilson 2021-06-17 59 continue; cf586021642d80 Chris Wilson 2021-06-17 60 = cf586021642d80 Chris Wilson 2021-06-17 61 err =3D i915_gem_object_lock= (dst, &ww); cf586021642d80 Chris Wilson 2021-06-17 62 if (err) cf586021642d80 Chris Wilson 2021-06-17 63 continue; cf586021642d80 Chris Wilson 2021-06-17 64 = cf586021642d80 Chris Wilson 2021-06-17 65 vaddr =3D i915_gem_object_pi= n_map(src, I915_MAP_WC); cf586021642d80 Chris Wilson 2021-06-17 66 if (IS_ERR(vaddr)) { cf586021642d80 Chris Wilson 2021-06-17 67 err =3D PTR_ERR(vaddr); cf586021642d80 Chris Wilson 2021-06-17 68 continue; cf586021642d80 Chris Wilson 2021-06-17 69 } cf586021642d80 Chris Wilson 2021-06-17 70 = cf586021642d80 Chris Wilson 2021-06-17 71 for (i =3D 0; i < sz / sizeo= f(u32); i++) cf586021642d80 Chris Wilson 2021-06-17 72 vaddr[i] =3D i; cf586021642d80 Chris Wilson 2021-06-17 73 i915_gem_object_flush_map(sr= c); cf586021642d80 Chris Wilson 2021-06-17 74 = cf586021642d80 Chris Wilson 2021-06-17 75 vaddr =3D i915_gem_object_pi= n_map(dst, I915_MAP_WC); cf586021642d80 Chris Wilson 2021-06-17 76 if (IS_ERR(vaddr)) { cf586021642d80 Chris Wilson 2021-06-17 77 err =3D PTR_ERR(vaddr); cf586021642d80 Chris Wilson 2021-06-17 78 goto unpin_src; cf586021642d80 Chris Wilson 2021-06-17 79 } cf586021642d80 Chris Wilson 2021-06-17 80 = cf586021642d80 Chris Wilson 2021-06-17 81 for (i =3D 0; i < sz / sizeo= f(u32); i++) cf586021642d80 Chris Wilson 2021-06-17 82 vaddr[i] =3D ~i; cf586021642d80 Chris Wilson 2021-06-17 83 i915_gem_object_flush_map(ds= t); cf586021642d80 Chris Wilson 2021-06-17 84 = cf586021642d80 Chris Wilson 2021-06-17 85 err =3D fn(migrate, &ww, src= , dst, &rq); cf586021642d80 Chris Wilson 2021-06-17 86 if (!err) cf586021642d80 Chris Wilson 2021-06-17 87 continue; cf586021642d80 Chris Wilson 2021-06-17 88 = cf586021642d80 Chris Wilson 2021-06-17 89 if (err !=3D -EDEADLK && err= !=3D -EINTR && err !=3D -ERESTARTSYS) cf586021642d80 Chris Wilson 2021-06-17 90 pr_err("%ps failed, size: %= u\n", fn, sz); cf586021642d80 Chris Wilson 2021-06-17 91 if (rq) { cf586021642d80 Chris Wilson 2021-06-17 92 i915_request_wait(rq, 0, HZ= ); cf586021642d80 Chris Wilson 2021-06-17 93 i915_request_put(rq); cf586021642d80 Chris Wilson 2021-06-17 94 } cf586021642d80 Chris Wilson 2021-06-17 95 i915_gem_object_unpin_map(ds= t); cf586021642d80 Chris Wilson 2021-06-17 96 unpin_src: cf586021642d80 Chris Wilson 2021-06-17 97 i915_gem_object_unpin_map(sr= c); cf586021642d80 Chris Wilson 2021-06-17 98 } cf586021642d80 Chris Wilson 2021-06-17 99 if (err) cf586021642d80 Chris Wilson 2021-06-17 100 goto err_out; cf586021642d80 Chris Wilson 2021-06-17 101 = cf586021642d80 Chris Wilson 2021-06-17 @102 if (rq) { cf586021642d80 Chris Wilson 2021-06-17 103 if (i915_request_wait(rq, 0,= HZ) < 0) { cf586021642d80 Chris Wilson 2021-06-17 104 pr_err("%ps timed out, size= : %u\n", fn, sz); cf586021642d80 Chris Wilson 2021-06-17 105 err =3D -ETIME; cf586021642d80 Chris Wilson 2021-06-17 106 } cf586021642d80 Chris Wilson 2021-06-17 107 i915_request_put(rq); cf586021642d80 Chris Wilson 2021-06-17 108 } cf586021642d80 Chris Wilson 2021-06-17 109 = cf586021642d80 Chris Wilson 2021-06-17 110 for (i =3D 0; !err && i < sz = / PAGE_SIZE; i++) { cf586021642d80 Chris Wilson 2021-06-17 111 int x =3D i * 1024 + i915_pr= andom_u32_max_state(1024, prng); cf586021642d80 Chris Wilson 2021-06-17 112 = cf586021642d80 Chris Wilson 2021-06-17 @113 if (vaddr[x] !=3D x) { cf586021642d80 Chris Wilson 2021-06-17 114 pr_err("%ps failed, size: %= u, offset: %zu\n", cf586021642d80 Chris Wilson 2021-06-17 115 fn, sz, x * sizeof(u= 32)); cf586021642d80 Chris Wilson 2021-06-17 116 igt_hexdump(vaddr + i * 102= 4, 4096); cf586021642d80 Chris Wilson 2021-06-17 117 err =3D -EINVAL; cf586021642d80 Chris Wilson 2021-06-17 118 } cf586021642d80 Chris Wilson 2021-06-17 119 } cf586021642d80 Chris Wilson 2021-06-17 120 = cf586021642d80 Chris Wilson 2021-06-17 121 i915_gem_object_unpin_map(dst= ); cf586021642d80 Chris Wilson 2021-06-17 122 i915_gem_object_unpin_map(src= ); cf586021642d80 Chris Wilson 2021-06-17 123 = cf586021642d80 Chris Wilson 2021-06-17 124 err_out: cf586021642d80 Chris Wilson 2021-06-17 125 i915_gem_object_put(dst); cf586021642d80 Chris Wilson 2021-06-17 126 err_free_src: cf586021642d80 Chris Wilson 2021-06-17 127 i915_gem_object_put(src); cf586021642d80 Chris Wilson 2021-06-17 128 = cf586021642d80 Chris Wilson 2021-06-17 129 return err; cf586021642d80 Chris Wilson 2021-06-17 130 } cf586021642d80 Chris Wilson 2021-06-17 131 = --- 0-DAY CI Kernel Test Service, Intel Corporation https://lists.01.org/hyperkitty/list/kbuild-all@lists.01.org --===============2154565740150529710==--