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Subject[PATCH 0/2] dmaengine: idxd: Fix up re-enabling device workqueues
Date
Currently if a software reset is attempted on an idxd device
the workqueues will not be re-enabled, because it will see
incorrectly see that wq->state is already set to IDXD_WQ_ENABLED.
So set the workqueue state to disabled in idxd_wq_disable_cleanup(),
and use a bitmap to track which workqueues have been enabled so they
can be re-enabled during device re-initialization.

Cc: Fenghua Yu <fenghua.yu@intel.com>
Cc: Dave Jiang <dave.jiang@intel.com>
Cc: Vinod Koul <vkoul@kernel.org>

Jerry Snitselaar (2):
dmaengine: idxd: Set wq state to disabled in idxd_wq_disable_cleanup()
dmaengine: idxd: track enabled workqueues in bitmap

drivers/dma/idxd/device.c | 4 +++-
drivers/dma/idxd/idxd.h | 2 ++
drivers/dma/idxd/init.c | 6 ++++++
drivers/dma/idxd/irq.c | 4 ++--
drivers/dma/idxd/sysfs.c | 1 +
5 files changed, 14 insertions(+), 3 deletions(-)

--
2.37.2

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