15 Dec
2023
15 Dec
'23
6:23 p.m.
On 12/10/2023 11:42 PM, Qiang Yu wrote:
From: Bhaumik Bhatt bbhatt@codeaurora.org
Protect WP accesses such that multiple threads queueing buffers for incoming data do not race.
Meanwhile, if CONFIG_TRACE_IRQFLAGS is enabled, irq will be enabled once __local_bh_enable_ip is called as part of write_unlock_bh. Hence, let's take irqsave lock after TRE is generated to avoid running write_unlock_bh when irqsave lock is held.
Cc: stable@vger.kernel.org Fixes: 189ff97cca53 ("bus: mhi: core: Add support for data transfer") Signed-off-by: Bhaumik Bhatt bbhatt@codeaurora.org Signed-off-by: Qiang Yu quic_qianyu@quicinc.com
Seems to work fine for AIC100
Reviewed-by: Jeffrey Hugo quic_jhugo@quicinc.com Tested-by: Jeffrey Hugo quic_jhugo@quicinc.com