This is a note to let you know that I've just added the patch titled
perf/dwc_pcie: Always register for PCIe bus notifier
to the 6.10-stable tree which can be found at:
http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary
The filename of the patch is:
perf-dwc_pcie-always-register-for-pcie-bus-notifier.patch
and it can be found in the queue-6.10 subdirectory.
If you, or anyone else, feels it should not be added to the stable tree,
please let <stable@xxxxxxxxxxxxxxx> know about it.
commit 0953602d34668120a05aa2e2f28cce56497a3e01
Author: Krishna chaitanya chundru <quic_krichai@xxxxxxxxxxx>
Date: Fri Aug 16 20:47:22 2024 +0530
perf/dwc_pcie: Always register for PCIe bus notifier
[ Upstream commit b94b05478fb6a09033bf70c6edd03f8930a0fe24 ]
When the PCIe devices are discovered late, the driver can't find
the PCIe devices and returns in the init without registering with
the bus notifier. Due to that the devices which are discovered late
the driver can't register for this.
Register for bus notifier & driver even if the device is not found
as part of init.
Fixes: af9597adc2f1 ("drivers/perf: add DesignWare PCIe PMU driver")
Signed-off-by: Krishna chaitanya chundru <quic_krichai@xxxxxxxxxxx>
Reviewed-by: Yicong Yang <yangyicong@xxxxxxxxxxxxx>
Link: https://lore.kernel.org/r/20240816-dwc_pmu_fix-v2-3-198b8ab1077c@xxxxxxxxxxx
Signed-off-by: Will Deacon <will@xxxxxxxxxx>
Signed-off-by: Sasha Levin <sashal@xxxxxxxxxx>
diff --git a/drivers/perf/dwc_pcie_pmu.c b/drivers/perf/dwc_pcie_pmu.c
index 85a5155d60180..f205ecad2e4c0 100644
--- a/drivers/perf/dwc_pcie_pmu.c
+++ b/drivers/perf/dwc_pcie_pmu.c
@@ -726,7 +726,6 @@ static struct platform_driver dwc_pcie_pmu_driver = {
static int __init dwc_pcie_pmu_init(void)
{
struct pci_dev *pdev = NULL;
- bool found = false;
int ret;
for_each_pci_dev(pdev) {
@@ -738,11 +737,7 @@ static int __init dwc_pcie_pmu_init(void)
pci_dev_put(pdev);
return ret;
}
-
- found = true;
}
- if (!found)
- return -ENODEV;
ret = cpuhp_setup_state_multi(CPUHP_AP_ONLINE_DYN,
"perf/dwc_pcie_pmu:online",
