crypto: qat - ignore subsequent state up commands

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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: 1bdc85550a ("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>

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Giovanni Cabiddu 2023-09-14 10:55:47 +01:00 • committed by Herbert Xu

parent c362a58e8d

commit 9c20cb8b18

1 changed files with 3 additions and 1 deletions

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drivers/crypto/intel/qat/qat_common/adf_sysfs.c

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