diff options
| author |   Dave Jiang <dave.jiang@intel.com> | 2022-04-11 15:06:34 -0700 |
|---|---|---|
| committer |   Vinod Koul <vkoul@kernel.org> | 2022-04-20 17:24:43 +0530 |
| commit | 1cd8e751d96c43ece3f6842ac2244a37d9332c3a (patch) | |
| tree | 1e8944c70b1c1a7b91c29a87d63fda0b3caf4979 /drivers/dma | |
| parent | dmaengine: idxd: add RO check for wq max_transfer_size write (diff) | |
| download | linux-dev-1cd8e751d96c43ece3f6842ac2244a37d9332c3a.tar.xz linux-dev-1cd8e751d96c43ece3f6842ac2244a37d9332c3a.zip | |
dmaengine: idxd: skip clearing device context when device is read-only
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: 0dcfe41e9a4c ("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>
Diffstat (limited to 'drivers/dma')
| -rw-r--r-- | drivers/dma/idxd/device.c | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/drivers/dma/idxd/device.c b/drivers/dma/idxd/device.c index 5a0535a0f850..f652da6ab47d 100644 --- a/drivers/dma/idxd/device.c +++ b/drivers/dma/idxd/device.c @@ -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); |