Messages in this thread | | | From | Qiang Yu <> | Subject | [PATCH 0/2] Add lock to avoid race when ringing channel DB | Date | Mon, 11 Sep 2023 17:54:27 +0800 |
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1. We need a write lock in mhi_gen_tre otherwise there is race of the WP used for ringing channel DB between mhi_queue and M0 transition. 2. We can not invoke local_bh_enable() when irqs are disabled, so move read_lock_irqsave() under the mhi_gen_tre() since we add write_lock_bh() in mhi_gen_tre().
Bhaumik Bhatt (1): bus: mhi: host: Add spinlock to protect WP access when queueing TREs
Hemant Kumar (1): bus: mhi: host: Take irqsave lock after TRE is generated
drivers/bus/mhi/host/main.c | 20 ++++++++++++-------- 1 file changed, 12 insertions(+), 8 deletions(-)
-- 2.7.4
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