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* drivers/gpu/drm/i915/gt/selftest_migrate.c:182 clear() error: uninitialized symbol 'rq'.
@ 2021-12-21 22:16 kernel test robot
  0 siblings, 0 replies; 5+ messages in thread
From: kernel test robot @ 2021-12-21 22:16 UTC (permalink / raw)
  To: kbuild

[-- Attachment #1: Type: text/plain, Size: 6792 bytes --]

CC: kbuild-all(a)lists.01.org
CC: linux-kernel(a)vger.kernel.org
TO: Chris Wilson <chris@chris-wilson.co.uk>
CC: Matthew Auld <matthew.auld@intel.com>
CC: "Thomas Hellström" <thomas.hellstrom@linux.intel.com>

tree:   https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master
head:   1c3e979bf3e225e5b4b810b24712b16254d608b6
commit: 563baae1875cbcac332086cca325cf55a0532b9e drm/i915/gt: Pipelined clear
date:   6 months ago
:::::: branch date: 5 hours ago
:::::: commit date: 6 months ago
config: i386-randconfig-m021-20211207 (https://download.01.org/0day-ci/archive/20211222/202112220618.oxh5I1IC-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 <lkp@intel.com>
Reported-by: Dan Carpenter <dan.carpenter@oracle.com>

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() error: 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_migrate *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_object *obj,
563baae1875cbc Chris Wilson 2021-06-17  136  			   u32 value,
563baae1875cbc Chris Wilson 2021-06-17  137  			   struct i915_request **out),
563baae1875cbc Chris Wilson 2021-06-17  138  		 u32 sz, struct rnd_state *prng)
563baae1875cbc Chris Wilson 2021-06-17  139  {
563baae1875cbc Chris Wilson 2021-06-17  140  	struct drm_i915_private *i915 = migrate->context->engine->i915;
563baae1875cbc Chris Wilson 2021-06-17  141  	struct drm_i915_gem_object *obj;
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 = 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 = create_lmem_or_internal(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, true) {
563baae1875cbc Chris Wilson 2021-06-17  153  		err = 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 = i915_gem_object_pin_map(obj, I915_MAP_WC);
563baae1875cbc Chris Wilson 2021-06-17  158  		if (IS_ERR(vaddr)) {
563baae1875cbc Chris Wilson 2021-06-17  159  			err = 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 = 0; i < sz / sizeof(u32); i++)
563baae1875cbc Chris Wilson 2021-06-17  164  			vaddr[i] = ~i;
563baae1875cbc Chris Wilson 2021-06-17  165  		i915_gem_object_flush_map(obj);
563baae1875cbc Chris Wilson 2021-06-17  166  
563baae1875cbc Chris Wilson 2021-06-17  167  		err = 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 != -EDEADLK && err != -EINTR && err != -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(obj);
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 = -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 = 0; !err && i < sz / PAGE_SIZE; i++) {
563baae1875cbc Chris Wilson 2021-06-17  191  		int x = i * 1024 + i915_prandom_u32_max_state(1024, prng);
563baae1875cbc Chris Wilson 2021-06-17  192  
563baae1875cbc Chris Wilson 2021-06-17 @193  		if (vaddr[x] != 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(u32));
563baae1875cbc Chris Wilson 2021-06-17  196  			igt_hexdump(vaddr + i * 1024, 4096);
563baae1875cbc Chris Wilson 2021-06-17  197  			err = -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

^ permalink raw reply	[flat|nested] 5+ messages in thread

* drivers/gpu/drm/i915/gt/selftest_migrate.c:182 clear() error: uninitialized symbol 'rq'.
@ 2022-02-10 14:28 kernel test robot
  0 siblings, 0 replies; 5+ messages in thread
From: kernel test robot @ 2022-02-10 14:28 UTC (permalink / raw)
  To: kbuild

[-- Attachment #1: Type: text/plain, Size: 6793 bytes --]

CC: kbuild-all(a)lists.01.org
CC: linux-kernel(a)vger.kernel.org
TO: Chris Wilson <chris@chris-wilson.co.uk>
CC: Matthew Auld <matthew.auld@intel.com>
CC: "Thomas Hellström" <thomas.hellstrom@linux.intel.com>

tree:   https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master
head:   f4bc5bbb5fef3cf421ba3485d6d383c27ec473ed
commit: 563baae1875cbcac332086cca325cf55a0532b9e drm/i915/gt: Pipelined clear
date:   8 months ago
:::::: branch date: 20 hours ago
:::::: commit date: 8 months ago
config: i386-randconfig-m031-20220207 (https://download.01.org/0day-ci/archive/20220210/202202102238.LeHWxBo0-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 <lkp@intel.com>
Reported-by: Dan Carpenter <dan.carpenter@oracle.com>

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() error: 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_migrate *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_object *obj,
563baae1875cbc Chris Wilson 2021-06-17  136  			   u32 value,
563baae1875cbc Chris Wilson 2021-06-17  137  			   struct i915_request **out),
563baae1875cbc Chris Wilson 2021-06-17  138  		 u32 sz, struct rnd_state *prng)
563baae1875cbc Chris Wilson 2021-06-17  139  {
563baae1875cbc Chris Wilson 2021-06-17  140  	struct drm_i915_private *i915 = migrate->context->engine->i915;
563baae1875cbc Chris Wilson 2021-06-17  141  	struct drm_i915_gem_object *obj;
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 = 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 = create_lmem_or_internal(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, true) {
563baae1875cbc Chris Wilson 2021-06-17  153  		err = 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 = i915_gem_object_pin_map(obj, I915_MAP_WC);
563baae1875cbc Chris Wilson 2021-06-17  158  		if (IS_ERR(vaddr)) {
563baae1875cbc Chris Wilson 2021-06-17  159  			err = 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 = 0; i < sz / sizeof(u32); i++)
563baae1875cbc Chris Wilson 2021-06-17  164  			vaddr[i] = ~i;
563baae1875cbc Chris Wilson 2021-06-17  165  		i915_gem_object_flush_map(obj);
563baae1875cbc Chris Wilson 2021-06-17  166  
563baae1875cbc Chris Wilson 2021-06-17  167  		err = 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 != -EDEADLK && err != -EINTR && err != -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(obj);
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 = -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 = 0; !err && i < sz / PAGE_SIZE; i++) {
563baae1875cbc Chris Wilson 2021-06-17  191  		int x = i * 1024 + i915_prandom_u32_max_state(1024, prng);
563baae1875cbc Chris Wilson 2021-06-17  192  
563baae1875cbc Chris Wilson 2021-06-17 @193  		if (vaddr[x] != 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(u32));
563baae1875cbc Chris Wilson 2021-06-17  196  			igt_hexdump(vaddr + i * 1024, 4096);
563baae1875cbc Chris Wilson 2021-06-17  197  			err = -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

^ permalink raw reply	[flat|nested] 5+ messages in thread

* drivers/gpu/drm/i915/gt/selftest_migrate.c:182 clear() error: uninitialized symbol 'rq'.
@ 2021-12-18  0:37 kernel test robot
  0 siblings, 0 replies; 5+ messages in thread
From: kernel test robot @ 2021-12-18  0:37 UTC (permalink / raw)
  To: kbuild

[-- Attachment #1: Type: text/plain, Size: 6793 bytes --]

CC: kbuild-all(a)lists.01.org
CC: linux-kernel(a)vger.kernel.org
TO: Chris Wilson <chris@chris-wilson.co.uk>
CC: Matthew Auld <matthew.auld@intel.com>
CC: "Thomas Hellström" <thomas.hellstrom@linux.intel.com>

tree:   https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master
head:   6441998e2e37131b0a4c310af9156d79d3351c16
commit: 563baae1875cbcac332086cca325cf55a0532b9e drm/i915/gt: Pipelined clear
date:   6 months ago
:::::: branch date: 25 hours ago
:::::: commit date: 6 months ago
config: i386-randconfig-m021-20211207 (https://download.01.org/0day-ci/archive/20211218/202112180857.ODI140kE-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 <lkp@intel.com>
Reported-by: Dan Carpenter <dan.carpenter@oracle.com>

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() error: 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_migrate *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_object *obj,
563baae1875cbc Chris Wilson 2021-06-17  136  			   u32 value,
563baae1875cbc Chris Wilson 2021-06-17  137  			   struct i915_request **out),
563baae1875cbc Chris Wilson 2021-06-17  138  		 u32 sz, struct rnd_state *prng)
563baae1875cbc Chris Wilson 2021-06-17  139  {
563baae1875cbc Chris Wilson 2021-06-17  140  	struct drm_i915_private *i915 = migrate->context->engine->i915;
563baae1875cbc Chris Wilson 2021-06-17  141  	struct drm_i915_gem_object *obj;
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 = 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 = create_lmem_or_internal(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, true) {
563baae1875cbc Chris Wilson 2021-06-17  153  		err = 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 = i915_gem_object_pin_map(obj, I915_MAP_WC);
563baae1875cbc Chris Wilson 2021-06-17  158  		if (IS_ERR(vaddr)) {
563baae1875cbc Chris Wilson 2021-06-17  159  			err = 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 = 0; i < sz / sizeof(u32); i++)
563baae1875cbc Chris Wilson 2021-06-17  164  			vaddr[i] = ~i;
563baae1875cbc Chris Wilson 2021-06-17  165  		i915_gem_object_flush_map(obj);
563baae1875cbc Chris Wilson 2021-06-17  166  
563baae1875cbc Chris Wilson 2021-06-17  167  		err = 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 != -EDEADLK && err != -EINTR && err != -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(obj);
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 = -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 = 0; !err && i < sz / PAGE_SIZE; i++) {
563baae1875cbc Chris Wilson 2021-06-17  191  		int x = i * 1024 + i915_prandom_u32_max_state(1024, prng);
563baae1875cbc Chris Wilson 2021-06-17  192  
563baae1875cbc Chris Wilson 2021-06-17 @193  		if (vaddr[x] != 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(u32));
563baae1875cbc Chris Wilson 2021-06-17  196  			igt_hexdump(vaddr + i * 1024, 4096);
563baae1875cbc Chris Wilson 2021-06-17  197  			err = -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

^ permalink raw reply	[flat|nested] 5+ messages in thread

* drivers/gpu/drm/i915/gt/selftest_migrate.c:182 clear() error: uninitialized symbol 'rq'.
@ 2021-11-27 21:19 kernel test robot
  0 siblings, 0 replies; 5+ messages in thread
From: kernel test robot @ 2021-11-27 21:19 UTC (permalink / raw)
  To: kbuild

[-- Attachment #1: Type: text/plain, Size: 6792 bytes --]

CC: kbuild-all(a)lists.01.org
CC: linux-kernel(a)vger.kernel.org
TO: Chris Wilson <chris@chris-wilson.co.uk>
CC: Matthew Auld <matthew.auld@intel.com>
CC: "Thomas Hellström" <thomas.hellstrom@linux.intel.com>

tree:   https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master
head:   86799cdfbcd2308cbad6c1dc983b81595b77b639
commit: 563baae1875cbcac332086cca325cf55a0532b9e drm/i915/gt: Pipelined clear
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/archive/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 <lkp@intel.com>
Reported-by: Dan Carpenter <dan.carpenter@oracle.com>

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() error: 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_migrate *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_object *obj,
563baae1875cbc Chris Wilson 2021-06-17  136  			   u32 value,
563baae1875cbc Chris Wilson 2021-06-17  137  			   struct i915_request **out),
563baae1875cbc Chris Wilson 2021-06-17  138  		 u32 sz, struct rnd_state *prng)
563baae1875cbc Chris Wilson 2021-06-17  139  {
563baae1875cbc Chris Wilson 2021-06-17  140  	struct drm_i915_private *i915 = migrate->context->engine->i915;
563baae1875cbc Chris Wilson 2021-06-17  141  	struct drm_i915_gem_object *obj;
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 = 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 = create_lmem_or_internal(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, true) {
563baae1875cbc Chris Wilson 2021-06-17  153  		err = 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 = i915_gem_object_pin_map(obj, I915_MAP_WC);
563baae1875cbc Chris Wilson 2021-06-17  158  		if (IS_ERR(vaddr)) {
563baae1875cbc Chris Wilson 2021-06-17  159  			err = 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 = 0; i < sz / sizeof(u32); i++)
563baae1875cbc Chris Wilson 2021-06-17  164  			vaddr[i] = ~i;
563baae1875cbc Chris Wilson 2021-06-17  165  		i915_gem_object_flush_map(obj);
563baae1875cbc Chris Wilson 2021-06-17  166  
563baae1875cbc Chris Wilson 2021-06-17  167  		err = 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 != -EDEADLK && err != -EINTR && err != -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(obj);
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 = -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 = 0; !err && i < sz / PAGE_SIZE; i++) {
563baae1875cbc Chris Wilson 2021-06-17  191  		int x = i * 1024 + i915_prandom_u32_max_state(1024, prng);
563baae1875cbc Chris Wilson 2021-06-17  192  
563baae1875cbc Chris Wilson 2021-06-17 @193  		if (vaddr[x] != 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(u32));
563baae1875cbc Chris Wilson 2021-06-17  196  			igt_hexdump(vaddr + i * 1024, 4096);
563baae1875cbc Chris Wilson 2021-06-17  197  			err = -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

^ permalink raw reply	[flat|nested] 5+ messages in thread

* drivers/gpu/drm/i915/gt/selftest_migrate.c:182 clear() error: uninitialized symbol 'rq'.
@ 2021-11-26  4:22 kernel test robot
  0 siblings, 0 replies; 5+ messages in thread
From: kernel test robot @ 2021-11-26  4:22 UTC (permalink / raw)
  To: kbuild

[-- Attachment #1: Type: text/plain, Size: 6869 bytes --]

CC: kbuild-all(a)lists.01.org
CC: linux-kernel(a)vger.kernel.org
TO: Chris Wilson <chris@chris-wilson.co.uk>
CC: Matthew Auld <matthew.auld@intel.com>
CC: "Thomas Hellström" <thomas.hellstrom@linux.intel.com>

tree:   https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master
head:   a4849f6000e29235a2707f22e39da6b897bb9543
commit: 563baae1875cbcac332086cca325cf55a0532b9e drm/i915/gt: Pipelined clear
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/archive/20211126/202111261224.QO81VI8l-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 <lkp@intel.com>
Reported-by: Dan Carpenter <dan.carpenter@oracle.com>

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() error: we previously assumed 'ww' could be null (see line 171)

vim +/rq +182 drivers/gpu/drm/i915/gt/selftest_migrate.c

cf586021642d801 Chris Wilson 2021-06-17  131  
563baae1875cbca Chris Wilson 2021-06-17  132  static int clear(struct intel_migrate *migrate,
563baae1875cbca Chris Wilson 2021-06-17  133  		 int (*fn)(struct intel_migrate *migrate,
563baae1875cbca Chris Wilson 2021-06-17  134  			   struct i915_gem_ww_ctx *ww,
563baae1875cbca Chris Wilson 2021-06-17  135  			   struct drm_i915_gem_object *obj,
563baae1875cbca Chris Wilson 2021-06-17  136  			   u32 value,
563baae1875cbca Chris Wilson 2021-06-17  137  			   struct i915_request **out),
563baae1875cbca Chris Wilson 2021-06-17  138  		 u32 sz, struct rnd_state *prng)
563baae1875cbca Chris Wilson 2021-06-17  139  {
563baae1875cbca Chris Wilson 2021-06-17  140  	struct drm_i915_private *i915 = migrate->context->engine->i915;
563baae1875cbca Chris Wilson 2021-06-17  141  	struct drm_i915_gem_object *obj;
563baae1875cbca Chris Wilson 2021-06-17  142  	struct i915_request *rq;
563baae1875cbca Chris Wilson 2021-06-17  143  	struct i915_gem_ww_ctx ww;
563baae1875cbca Chris Wilson 2021-06-17  144  	u32 *vaddr;
563baae1875cbca Chris Wilson 2021-06-17  145  	int err = 0;
563baae1875cbca Chris Wilson 2021-06-17  146  	int i;
563baae1875cbca Chris Wilson 2021-06-17  147  
563baae1875cbca Chris Wilson 2021-06-17  148  	obj = create_lmem_or_internal(i915, sz);
563baae1875cbca Chris Wilson 2021-06-17  149  	if (IS_ERR(obj))
563baae1875cbca Chris Wilson 2021-06-17  150  		return 0;
563baae1875cbca Chris Wilson 2021-06-17  151  
563baae1875cbca Chris Wilson 2021-06-17  152  	for_i915_gem_ww(&ww, err, true) {
563baae1875cbca Chris Wilson 2021-06-17  153  		err = i915_gem_object_lock(obj, &ww);
563baae1875cbca Chris Wilson 2021-06-17  154  		if (err)
563baae1875cbca Chris Wilson 2021-06-17  155  			continue;
563baae1875cbca Chris Wilson 2021-06-17  156  
563baae1875cbca Chris Wilson 2021-06-17  157  		vaddr = i915_gem_object_pin_map(obj, I915_MAP_WC);
563baae1875cbca Chris Wilson 2021-06-17  158  		if (IS_ERR(vaddr)) {
563baae1875cbca Chris Wilson 2021-06-17  159  			err = PTR_ERR(vaddr);
563baae1875cbca Chris Wilson 2021-06-17  160  			continue;
563baae1875cbca Chris Wilson 2021-06-17  161  		}
563baae1875cbca Chris Wilson 2021-06-17  162  
563baae1875cbca Chris Wilson 2021-06-17  163  		for (i = 0; i < sz / sizeof(u32); i++)
563baae1875cbca Chris Wilson 2021-06-17  164  			vaddr[i] = ~i;
563baae1875cbca Chris Wilson 2021-06-17  165  		i915_gem_object_flush_map(obj);
563baae1875cbca Chris Wilson 2021-06-17  166  
563baae1875cbca Chris Wilson 2021-06-17  167  		err = fn(migrate, &ww, obj, sz, &rq);
563baae1875cbca Chris Wilson 2021-06-17  168  		if (!err)
563baae1875cbca Chris Wilson 2021-06-17  169  			continue;
563baae1875cbca Chris Wilson 2021-06-17  170  
563baae1875cbca Chris Wilson 2021-06-17  171  		if (err != -EDEADLK && err != -EINTR && err != -ERESTARTSYS)
563baae1875cbca Chris Wilson 2021-06-17  172  			pr_err("%ps failed, size: %u\n", fn, sz);
563baae1875cbca Chris Wilson 2021-06-17  173  		if (rq) {
563baae1875cbca Chris Wilson 2021-06-17  174  			i915_request_wait(rq, 0, HZ);
563baae1875cbca Chris Wilson 2021-06-17  175  			i915_request_put(rq);
563baae1875cbca Chris Wilson 2021-06-17  176  		}
563baae1875cbca Chris Wilson 2021-06-17  177  		i915_gem_object_unpin_map(obj);
563baae1875cbca Chris Wilson 2021-06-17  178  	}
563baae1875cbca Chris Wilson 2021-06-17  179  	if (err)
563baae1875cbca Chris Wilson 2021-06-17  180  		goto err_out;
563baae1875cbca Chris Wilson 2021-06-17  181  
563baae1875cbca Chris Wilson 2021-06-17 @182  	if (rq) {
563baae1875cbca Chris Wilson 2021-06-17  183  		if (i915_request_wait(rq, 0, HZ) < 0) {
563baae1875cbca Chris Wilson 2021-06-17  184  			pr_err("%ps timed out, size: %u\n", fn, sz);
563baae1875cbca Chris Wilson 2021-06-17  185  			err = -ETIME;
563baae1875cbca Chris Wilson 2021-06-17  186  		}
563baae1875cbca Chris Wilson 2021-06-17  187  		i915_request_put(rq);
563baae1875cbca Chris Wilson 2021-06-17  188  	}
563baae1875cbca Chris Wilson 2021-06-17  189  
563baae1875cbca Chris Wilson 2021-06-17  190  	for (i = 0; !err && i < sz / PAGE_SIZE; i++) {
563baae1875cbca Chris Wilson 2021-06-17  191  		int x = i * 1024 + i915_prandom_u32_max_state(1024, prng);
563baae1875cbca Chris Wilson 2021-06-17  192  
563baae1875cbca Chris Wilson 2021-06-17 @193  		if (vaddr[x] != sz) {
563baae1875cbca Chris Wilson 2021-06-17  194  			pr_err("%ps failed, size: %u, offset: %zu\n",
563baae1875cbca Chris Wilson 2021-06-17  195  			       fn, sz, x * sizeof(u32));
563baae1875cbca Chris Wilson 2021-06-17  196  			igt_hexdump(vaddr + i * 1024, 4096);
563baae1875cbca Chris Wilson 2021-06-17  197  			err = -EINVAL;
563baae1875cbca Chris Wilson 2021-06-17  198  		}
563baae1875cbca Chris Wilson 2021-06-17  199  	}
563baae1875cbca Chris Wilson 2021-06-17  200  
563baae1875cbca Chris Wilson 2021-06-17  201  	i915_gem_object_unpin_map(obj);
563baae1875cbca Chris Wilson 2021-06-17  202  err_out:
563baae1875cbca Chris Wilson 2021-06-17  203  	i915_gem_object_put(obj);
563baae1875cbca Chris Wilson 2021-06-17  204  
563baae1875cbca Chris Wilson 2021-06-17  205  	return err;
563baae1875cbca Chris Wilson 2021-06-17  206  }
563baae1875cbca 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

^ permalink raw reply	[flat|nested] 5+ messages in thread

end of thread, other threads:[~2022-02-10 14:28 UTC | newest]

Thread overview: 5+ messages (download: mbox.gz / follow: Atom feed)
-- links below jump to the message on this page --
2021-12-21 22:16 drivers/gpu/drm/i915/gt/selftest_migrate.c:182 clear() error: uninitialized symbol 'rq' kernel test robot
  -- strict thread matches above, loose matches on Subject: below --
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