Hi Thank you for your review and I found the below commit in linux-next. So, I'll reject this patch. >On 3/02/21 8:53 am, DooHyun Hwang wrote: >> Since the total error history count is unknown because the error >> history records only the number of UFS_EVENT_HIST_LENGTH, add a member >> to count each error history. >> >> Signed-off-by: DooHyun Hwang <dh0421.hwang@xxxxxxxxxxx> > >Hi > >Please note that the following patch is already queued - see linux-next > > >commit b6cacaf2044fd9b82e5ceac88d8d17e04a01982f >Author: Adrian Hunter <adrian.hunter@xxxxxxxxx> >Date: Thu Jan 7 09:25:38 2021 +0200 > > scsi: ufs: ufs-debugfs: Add error counters > > People testing have a need to know how many errors might be occurring >over > time. Add error counters and expose them via debugfs. > > A module initcall is used to create a debugfs root directory for > ufshcd-related items. In the case that modules are built-in, then > initialization is done in link order, so move ufshcd-core to the top of >the > Makefile. > > Link: https://lore.kernel.org/r/20210107072538.21782-1- >adrian.hunter@xxxxxxxxx > Reviewed-by: Avri Altman <avri.altman@xxxxxxx> > Reviewed-by: Bean Huo <beanhuo@xxxxxxxxxx> > Reviewed-by: Can Guo <cang@xxxxxxxxxxxxxx> > Signed-off-by: Adrian Hunter <adrian.hunter@xxxxxxxxx> > Signed-off-by: Martin K. Petersen <martin.petersen@xxxxxxxxxx> > > >> --- >> drivers/scsi/ufs/ufshcd.c | 3 +++ >> drivers/scsi/ufs/ufshcd.h | 1 + >> 2 files changed, 4 insertions(+) >> >> diff --git a/drivers/scsi/ufs/ufshcd.c b/drivers/scsi/ufs/ufshcd.c >> index fb32d122f2e3..7ebc892553fc 100644 >> --- a/drivers/scsi/ufs/ufshcd.c >> +++ b/drivers/scsi/ufs/ufshcd.c >> @@ -437,6 +437,8 @@ static void ufshcd_print_evt(struct ufs_hba *hba, >> u32 id, >> >> if (!found) >> dev_err(hba->dev, "No record of %s\n", err_name); >> + else >> + dev_err(hba->dev, "%s: total count=%u\n", err_name, e->count); >> } >> >> static void ufshcd_print_evt_hist(struct ufs_hba *hba) @@ -4544,6 >> +4546,7 @@ void ufshcd_update_evt_hist(struct ufs_hba *hba, u32 id, u32 >val) >> e->val[e->pos] = val; >> e->tstamp[e->pos] = ktime_get(); >> e->pos = (e->pos + 1) % UFS_EVENT_HIST_LENGTH; >> + e->count++; >> >> ufshcd_vops_event_notify(hba, id, &val); } diff --git >> a/drivers/scsi/ufs/ufshcd.h b/drivers/scsi/ufs/ufshcd.h index >> aa9ea3552323..df28d3fc89a5 100644 >> --- a/drivers/scsi/ufs/ufshcd.h >> +++ b/drivers/scsi/ufs/ufshcd.h >> @@ -450,6 +450,7 @@ struct ufs_event_hist { >> int pos; >> u32 val[UFS_EVENT_HIST_LENGTH]; >> ktime_t tstamp[UFS_EVENT_HIST_LENGTH]; >> + u32 count; >> }; >> >> /** >>
