Public bug reported:
SRU Justification:
[Impact]
Exclusion is being handled around arm_smccc_smc() only in the store functions.
It should be implemented in the show functions also as this call might not be
thread-safe.
[Fix]
Add mutex_lock/unlock around arm_smccc_smc calls in the show functions.
[Test Case]
Multiple simultaneous accesses to a sysfs entry exposed by the driver are
successful.
[Regression Potential]
Can be considered minimum
** Affects: linux-bluefield (Ubuntu)
Importance: Undecided
Status: New
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https://bugs.launchpad.net/bugs/1933642
Title:
mlx-bootctl: Fix exclusion issues around arm_smccc_smc
Status in linux-bluefield package in Ubuntu:
New
Bug description:
SRU Justification:
[Impact]
Exclusion is being handled around arm_smccc_smc() only in the store
functions. It should be implemented in the show functions also as this call
might not be thread-safe.
[Fix]
Add mutex_lock/unlock around arm_smccc_smc calls in the show functions.
[Test Case]
Multiple simultaneous accesses to a sysfs entry exposed by the driver are
successful.
[Regression Potential]
Can be considered minimum
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https://bugs.launchpad.net/ubuntu/+source/linux-bluefield/+bug/1933642/+subscriptions
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