From: Krishna chaitanya chundru Date: Fri, 16 Aug 2024 15:17:22 +0000 (+0530) Subject: perf/dwc_pcie: Always register for PCIe bus notifier X-Git-Tag: v6.12-rc1~221^2~4^2~20 X-Git-Url: http://git.ipfire.org/?a=commitdiff_plain;h=b94b05478fb6a09033bf70c6edd03f8930a0fe24;p=thirdparty%2Flinux.git perf/dwc_pcie: Always register for PCIe bus notifier 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 Reviewed-by: Yicong Yang Link: https://lore.kernel.org/r/20240816-dwc_pmu_fix-v2-3-198b8ab1077c@quicinc.com Signed-off-by: Will Deacon --- 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",