dmaengine: idxd: add a device to represent the file opened

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Embed a struct device for the user file context in order to export sysfs
attributes related with the opened file. Tie the lifetime of the file
context to the device. The sysfs entry will be added under the char device.

Tested-by: Tony Zhu <tony.zhu@intel.com>
Signed-off-by: Dave Jiang <dave.jiang@intel.com>
Co-developed-by: Fenghua Yu <fenghua.yu@intel.com>
Signed-off-by: Fenghua Yu <fenghua.yu@intel.com>
Link: https://lore.kernel.org/r/20230407203143.2189681-14-fenghua.yu@intel.com
Signed-off-by: Vinod Koul <vkoul@kernel.org>

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Dave Jiang 2023-04-07 13:31:40 -07:00 • committed by Vinod Koul

parent fecae134ee

commit e6fd6d7e5f

2 changed files with 97 additions and 24 deletions

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119

drivers/dma/idxd/cdev.c

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2

drivers/dma/idxd/idxd.h

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