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dmaengine: idxd: skip clearing device context when device is read-only

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If the device shows up as read-only configuration, skip the clearing of the
state as the context must be preserved for device re-enable after being
disabled.

Fixes: 0dcfe41e9a ("dmanegine: idxd: cleanup all device related bits after disabling device")
Reported-by: Tony Zhu <tony.zhu@intel.com>
Tested-by: Tony Zhu <tony.zhu@intel.com>
Signed-off-by: Dave Jiang <dave.jiang@intel.com>
Link: https://lore.kernel.org/r/164971479479.2200566.13980022473526292759.stgit@djiang5-desk3.ch.intel.com
Signed-off-by: Vinod Koul <vkoul@kernel.org>
This commit is contained in:
Dave Jiang 2022-04-11 15:06:34 -07:00 committed by Vinod Koul
parent 505a2d1032
commit 1cd8e751d9
1 changed files with 3 additions and 0 deletions
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3
drivers/dma/idxd/device.c
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@ -708,6 +708,9 @@ static void idxd_device_wqs_clear_state(struct idxd_device *idxd)
void idxd_device_clear_state(struct idxd_device *idxd)
{
if (!test_bit(IDXD_FLAG_CONFIGURABLE, &idxd->flags))
return;
idxd_groups_clear_state(idxd);
idxd_engines_clear_state(idxd);
idxd_device_wqs_clear_state(idxd);