hwtracing: hisi_ptt: Only add the supported devices to the filters list
authorYicong Yang <yangyicong@hisilicon.com>
Thu, 12 Jan 2023 11:22:00 +0000 (19:22 +0800)
committerSuzuki K Poulose <suzuki.poulose@arm.com>
Thu, 19 Jan 2023 10:06:35 +0000 (10:06 +0000)
commitb8d976c7d41a28c0fccf22c7113be9a29dc07e5c
tree010f86c07c83ee9459cdc4ca96a8693bdac96cbe
parent075c7c04a81a326a5a28cc0ef8411ba1c5c34e90
hwtracing: hisi_ptt: Only add the supported devices to the filters list

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: ff0de066b463 ("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
drivers/hwtracing/ptt/hisi_ptt.c