linux-stable.git/drivers/base/test, branch linux-5.15.y

driver core: test_async: fix an error code

2023-09-19T10:22:45+00:00

[ Upstream commit 22d2381bbd70a5853c2ee77522f4965139672db9 ]

The test_platform_device_register_node() function should return error
pointers instead of NULL.  That is what the callers are expecting.

Fixes: 57ea974fb871 ("driver core: Rewrite test_async_driver_probe to cover serialization and NUMA affinity")
Signed-off-by: Dan Carpenter 
Link: https://lore.kernel.org/r/1e11ed19-e1f6-43d8-b352-474134b7c008@moroto.mountain
Signed-off-by: Greg Kroah-Hartman 
Signed-off-by: Sasha Levin

driver core: Fix test_async_probe_init saves device in wrong array

2023-02-01T07:27:14+00:00

[ Upstream commit 9be182da0a7526f1b9a3777a336f83baa2e64d23 ]

In test_async_probe_init, second set of asynchronous devices are saved
in sync_dev[sync_id], which should be async_dev[async_id].
This makes these devices not unregistered when exit.

> modprobe test_async_driver_probe && \
> modprobe -r test_async_driver_probe && \
> modprobe test_async_driver_probe
 ...
> sysfs: cannot create duplicate filename '/devices/platform/test_async_driver.4'
> kobject_add_internal failed for test_async_driver.4 with -EEXIST,
  don't try to register things with the same name in the same directory.

Fixes: 57ea974fb871 ("driver core: Rewrite test_async_driver_probe to cover serialization and NUMA affinity")
Signed-off-by: Chen Zhongjin 
Link: https://lore.kernel.org/r/20221125063541.241328-1-chenzhongjin@huawei.com
Signed-off-by: Greg Kroah-Hartman 
Signed-off-by: Sasha Levin

device property: build kunit tests without structleak plugin

2021-10-06T23:53:42+00:00

The structleak plugin causes the stack frame size to grow immensely when
used with KUnit:

../drivers/base/test/property-entry-test.c:492:1: warning: the frame size of 2832 bytes is larger than 2048 bytes [-Wframe-larger-than=]
../drivers/base/test/property-entry-test.c:322:1: warning: the frame size of 2080 bytes is larger than 2048 bytes [-Wframe-larger-than=]
../drivers/base/test/property-entry-test.c:250:1: warning: the frame size of 4976 bytes is larger than 2048 bytes [-Wframe-larger-than=]
../drivers/base/test/property-entry-test.c:115:1: warning: the frame size of 3280 bytes is larger than 2048 bytes [-Wframe-larger-than=]

Turn it off in this file.

Signed-off-by: Brendan Higgins 
Suggested-by: Arnd Bergmann 
Reviewed-by: Kees Cook 
Signed-off-by: Shuah Khan

device property: Remove some casts in property-entry-test

2021-06-23T22:37:21+00:00

With some of the stricter type checking in KUnit's EXPECT macros
removed, several casts in property-entry-test are no longer required.

Remove the unnecessary casts, making the conditions clearer.

Signed-off-by: David Gow 
Acked-by: Greg Kroah-Hartman 
Reviewed-by: Brendan Higgins 
Signed-off-by: Shuah Khan

kunit: software node: adhear to KUNIT formatting standard

2021-04-15T06:56:27+00:00

Change CONFIG_KUNIT_DRIVER_PE_TEST to CONFIG_DRIVER_PE_KUNIT_TEST inorder
to adhear to the KUNIT *_KUNIT_TEST config name format.

Fixes: aa811e3cecec (software node: introduce CONFIG_KUNIT_DRIVER_PE_TEST)
Signed-off-by: Nico Pache 
Link: https://lore.kernel.org/r/ef06f65f4a622cf83cce5ba2ba5a060d2aa2e1b9.1618388989.git.npache@redhat.com
Signed-off-by: Greg Kroah-Hartman

software node: Introduce SOFTWARE_NODE_REFERENCE() helper macro

2021-04-05T11:18:22+00:00

This is useful to assign software node reference with arguments
in a common way. Moreover, we have already couple of users that
may be converted. And by the fact, one of them is moved right here
to use the helper.

Tested-by: Daniel Scally 
Reviewed-by: Daniel Scally 
Signed-off-by: Andy Shevchenko 
Link: https://lore.kernel.org/r/20210329151207.36619-5-andriy.shevchenko@linux.intel.com
Signed-off-by: Greg Kroah-Hartman

device property: Add test cases for fwnode_property_count_*() APIs

2021-03-23T14:04:06+00:00

Add test cases for fwnode_property_count_*() APIs.

While at it, modify the arrays of integers to be size of non-power-of-2
for better test coverage and decreasing stack usage.

Signed-off-by: Andy Shevchenko 
Link: https://lore.kernel.org/r/20210212162539.86850-1-andriy.shevchenko@linux.intel.com
Signed-off-by: Greg Kroah-Hartman

drivers/base: build kunit tests without structleak plugin

2021-01-27T13:35:18+00:00

The structleak plugin causes the stack frame size to grow immensely:

drivers/base/test/property-entry-test.c: In function 'pe_test_reference':
drivers/base/test/property-entry-test.c:481:1: error: the frame size of 2640 bytes is larger than 2048 bytes [-Werror=frame-larger-than=]
  481 | }
      | ^
drivers/base/test/property-entry-test.c: In function 'pe_test_uints':
drivers/base/test/property-entry-test.c:99:1: error: the frame size of 2592 bytes is larger than 2048 bytes [-Werror=frame-larger-than=]

Turn it off in this file.

Signed-off-by: Arnd Bergmann 
Link: https://lore.kernel.org/r/20210125124533.101339-3-arnd@kernel.org
Signed-off-by: Greg Kroah-Hartman

drivers: base: default KUNIT_* fragments to KUNIT_ALL_TESTS

2020-06-01T20:24:25+00:00

This makes it easier to enable all KUnit fragments.

Adding 'if !KUNIT_ALL_TESTS' so individual tests can not be turned off.
Therefore if KUNIT_ALL_TESTS is enabled that will hide the prompt in
menuconfig.

Reviewed-by: David Gow 
Signed-off-by: Anders Roxell 
Signed-off-by: Shuah Khan

Merge tag 'driver-core-5.6-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core

2020-01-29T18:18:20+00:00

Pull driver core updates from Greg KH:
 "Here is a small set of changes for 5.6-rc1 for the driver core and
  some firmware subsystem changes.

  Included in here are:
   - device.h splitup like you asked for months ago
   - devtmpfs minor cleanups
   - firmware core minor changes
   - debugfs fix for lockdown mode
   - kernfs cleanup fix
   - cpu topology minor fix

  All of these have been in linux-next for a while with no reported
  issues"

* tag 'driver-core-5.6-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core: (22 commits)
  firmware: Rename FW_OPT_NOFALLBACK to FW_OPT_NOFALLBACK_SYSFS
  devtmpfs: factor out common tail of devtmpfs_{create,delete}_node
  devtmpfs: initify a bit
  devtmpfs: simplify initialization of mount_dev
  devtmpfs: factor out setup part of devtmpfsd()
  devtmpfs: fix theoretical stale pointer deref in devtmpfsd()
  driver core: platform: fix u32 greater or equal to zero comparison
  cpu-topology: Don't error on more than CONFIG_NR_CPUS CPUs in device tree
  debugfs: Return -EPERM when locked down
  driver core: Print device when resources present in really_probe()
  driver core: Fix test_async_driver_probe if NUMA is disabled
  driver core: platform: Prevent resouce overflow from causing infinite loops
  fs/kernfs/dir.c: Clean code by removing always true condition
  component: do not dereference opaque pointer in debugfs
  drivers/component: remove modular code
  debugfs: Fix warnings when building documentation
  device.h: move 'struct driver' stuff out to device/driver.h
  device.h: move 'struct class' stuff out to device/class.h
  device.h: move 'struct bus' stuff out to device/bus.h
  device.h: move dev_printk()-like functions to dev_printk.h
  ...