On 2023/5/17 03:19, Bjorn Helgaas wrote: > On Tue, May 16, 2023 at 09:01:09PM +0800, Shuai Xue wrote: >> ... > >> +#include <linux/pci.h> >> +#include <linux/bitfield.h> >> +#include <linux/bitops.h> >> +#include <linux/cpuhotplug.h> >> +#include <linux/cpumask.h> >> +#include <linux/device.h> >> +#include <linux/errno.h> >> +#include <linux/kernel.h> >> +#include <linux/list.h> >> +#include <linux/perf_event.h> >> +#include <linux/platform_device.h> >> +#include <linux/smp.h> >> +#include <linux/sysfs.h> >> +#include <linux/types.h> > > Typically in alpha order. Got it, I will reorder them. > >> +#define DWC_PCIE_VSEC_RAS_DES_ID 0x02 >> + >> +#define DWC_PCIE_EVENT_CNT_CTL 0x8 > > Add a blank line here. Sure, will add it. > >> +/* >> + * Event Counter Data Select includes two parts: > >> +#define DWC_PCIE_EVENT_CNT_DATA 0xC >> +#define DWC_PCIE_DURATION_4US 0xff > ... > Pick upper-case hex or lower-case hex and use consistently. Will pick upper-case hex for all macros. > >> +#define DWC_PCIE_LANE_EVENT_MAX_PERIOD (GENMASK_ULL(31, 0)) >> +#define DWC_PCIE_TIME_BASED_EVENT_MAX_PERIOD (GENMASK_ULL(63, 0)) > > Unnecessary outer "()". Ok, will remove it. > >> +struct dwc_pcie_pmu { >> + struct pci_dev *pdev; /* Root Port device */ >> + u32 ras_des; /* RAS DES capability offset */ > > u16 is enough to address all of config space. Go it. will fix in next version. Thank you :) Best Regards, Shuai