dmaengine: idxd: fix lockdep warning on device driver removal

mainline inclusion
from mainline-v5.19
commit cf4ac3fe
category: feature
bugzilla: https://gitee.com/openeuler/intel-kernel/issues/I596WO


CVE: NA

Intel-SIG: commit cf4ac3fe dmaengine: idxd: fix lockdep warning on device driver removal.
Incremental backporting patches for DSA/IAA on Intel Xeon platform.

--------------------------------

Jacob reported that with lockdep debug turned on, idxd_device_driver
removal causes kernel splat from lock assert warning for
idxd_device_wqs_clear_state(). Make sure
idxd_device_wqs_clear_state() holds the wq lock for each wq when
cleaning the wq state. Move the call outside of the device spinlock.

Reported-by: Jacob Pan <jacob.jun.pan@intel.com>
Signed-off-by: Dave Jiang <dave.jiang@intel.com>
Link: https://lore.kernel.org/r/165231364426.986304.9294302800482492780.stgit@djiang5-desk3.ch.intel.com


Signed-off-by: Vinod Koul <vkoul@kernel.org>
Signed-off-by: Xiaochen Shen <xiaochen.shen@intel.com>