linux-stable/drivers/hwtracing/ptt
Yicong Yang 8a9232f56e hwtracing: hisi_ptt: Only add the supported devices to the filters list
[ Upstream commit b8d976c7d4 ]

The PTT device can only support the devices on the same PCIe core,
within BDF range [lower_bdf, upper_bdf]. It's not correct to assume
the devices on the root bus are from the same PCIe core, there are
cases that root ports from different PCIe core are sharing the same
bus. So check when initializing the filters list.

Fixes: ff0de066b4 ("hwtracing: hisi_ptt: Add trace function support for HiSilicon PCIe Tune and Trace device")
Signed-off-by: Yicong Yang <yangyicong@hisilicon.com>
Reviewed-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
Signed-off-by: Suzuki K Poulose <suzuki.poulose@arm.com>
Link: https://lore.kernel.org/r/20230112112201.16283-1-yangyicong@huawei.com
Signed-off-by: Sasha Levin <sashal@kernel.org>
2023-03-10 09:28:49 +01:00
..
Kconfig
Makefile
hisi_ptt.c hwtracing: hisi_ptt: Only add the supported devices to the filters list 2023-03-10 09:28:49 +01:00
hisi_ptt.h