Re: [PATCH v2] firmware: qcom_scm: Mark get_wq_ctx() as atomic call

On Wed, 14 Aug 2024 15:32:44 -0700, Unnathi Chalicheemala wrote:

Currently get_wq_ctx() is wrongly configured as a standard call. When two SMC calls are in sleep and one SMC wakes up, it calls get_wq_ctx() to resume the corresponding sleeping thread. But if get_wq_ctx() is interrupted, goes to sleep and another SMC call is waiting to be allocated a waitq context, it leads to a deadlock.

To avoid this get_wq_ctx() must be an atomic call and can't be a standard SMC call. Hence mark get_wq_ctx() as a fast call.

[...]

Applied, thanks!

[1/1] firmware: qcom_scm: Mark get_wq_ctx() as atomic call commit: 9960085a3a82c58d3323c1c20b991db6045063b0

Best regards,