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| /openbmc/linux/drivers/crypto/intel/qat/qat_common/ |
| H A D | adf_sysfs.c | a44d2b83 Thu Sep 14 04:55:47 CDT 2023 Giovanni Cabiddu <giovanni.cabiddu@intel.com> crypto: qat - ignore subsequent state up commands
[ Upstream commit 9c20cb8b1847dedddec3d5163079290542bf00bf ]
If the device is already in the up state, a subsequent write of `up` to
the sysfs attribute /sys/bus/pci/devices/<BDF>/qat/state brings the
device down.
Fix this behaviour by ignoring subsequent `up` commands if the device is
already in the up state.
Fixes: 1bdc85550a2b ("crypto: qat - fix concurrency issue when device state changes")
Signed-off-by: Giovanni Cabiddu <giovanni.cabiddu@intel.com>
Reviewed-by: Adam Guerin <adam.guerin@intel.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Signed-off-by: Sasha Levin <sashal@kernel.org>
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