summaryrefslogtreecommitdiff
diff options
context:
space:
mode:
authorNeil Armstrong <neil.armstrong@linaro.org>2025-04-07 12:17:03 +0200
committerMartin K. Petersen <martin.petersen@oracle.com>2025-04-11 21:23:12 -0400
commit56f4beffc9a056f70e56f53d01451441106bd4ff (patch)
treea01c204af984c32480d780b8d28e3c77a1b1135d
parent0af2f6be1b4281385b618cb86ad946eded089ac8 (diff)
scsi: ufs: core: Drop last_intr_status/ts stats
In order to prepare introduction of a threaded interrupt handler, drop last_intr_status & last_intr_ts drop the ufs_stats struct, and the associated debug code. Suggested-by: Bart Van Assche <bvanassche@acm.org> Reviewed-by: Bart Van Assche <bvanassche@acm.org> Signed-off-by: Neil Armstrong <neil.armstrong@linaro.org> Link: https://lore.kernel.org/r/20250407-topic-ufs-use-threaded-irq-v3-1-08bee980f71e@linaro.org Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
-rw-r--r--drivers/ufs/core/ufshcd.c11
-rw-r--r--include/ufs/ufshcd.h5
2 files changed, 3 insertions, 13 deletions
diff --git a/drivers/ufs/core/ufshcd.c b/drivers/ufs/core/ufshcd.c
index 0534390c2a35..5e73ac1e0078 100644
--- a/drivers/ufs/core/ufshcd.c
+++ b/drivers/ufs/core/ufshcd.c
@@ -643,9 +643,6 @@ static void ufshcd_print_host_state(struct ufs_hba *hba)
"last_hibern8_exit_tstamp at %lld us, hibern8_exit_cnt=%d\n",
div_u64(hba->ufs_stats.last_hibern8_exit_tstamp, 1000),
hba->ufs_stats.hibern8_exit_cnt);
- dev_err(hba->dev, "last intr at %lld us, last intr status=0x%x\n",
- div_u64(hba->ufs_stats.last_intr_ts, 1000),
- hba->ufs_stats.last_intr_status);
dev_err(hba->dev, "error handling flags=0x%x, req. abort count=%d\n",
hba->eh_flags, hba->req_abort_count);
dev_err(hba->dev, "hba->ufs_version=0x%x, Host capabilities=0x%x, caps=0x%x\n",
@@ -6984,14 +6981,12 @@ static irqreturn_t ufshcd_sl_intr(struct ufs_hba *hba, u32 intr_status)
*/
static irqreturn_t ufshcd_intr(int irq, void *__hba)
{
- u32 intr_status, enabled_intr_status = 0;
+ u32 last_intr_status, intr_status, enabled_intr_status = 0;
irqreturn_t retval = IRQ_NONE;
struct ufs_hba *hba = __hba;
int retries = hba->nutrs;
- intr_status = ufshcd_readl(hba, REG_INTERRUPT_STATUS);
- hba->ufs_stats.last_intr_status = intr_status;
- hba->ufs_stats.last_intr_ts = local_clock();
+ last_intr_status = intr_status = ufshcd_readl(hba, REG_INTERRUPT_STATUS);
/*
* There could be max of hba->nutrs reqs in flight and in worst case
@@ -7015,7 +7010,7 @@ static irqreturn_t ufshcd_intr(int irq, void *__hba)
dev_err(hba->dev, "%s: Unhandled interrupt 0x%08x (0x%08x, 0x%08x)\n",
__func__,
intr_status,
- hba->ufs_stats.last_intr_status,
+ last_intr_status,
enabled_intr_status);
ufshcd_dump_regs(hba, 0, UFSHCI_REG_SPACE_SIZE, "host_regs: ");
}
diff --git a/include/ufs/ufshcd.h b/include/ufs/ufshcd.h
index e3909cc691b2..fffa9cc46543 100644
--- a/include/ufs/ufshcd.h
+++ b/include/ufs/ufshcd.h
@@ -501,8 +501,6 @@ struct ufs_event_hist {
/**
* struct ufs_stats - keeps usage/err statistics
- * @last_intr_status: record the last interrupt status.
- * @last_intr_ts: record the last interrupt timestamp.
* @hibern8_exit_cnt: Counter to keep track of number of exits,
* reset this after link-startup.
* @last_hibern8_exit_tstamp: Set time after the hibern8 exit.
@@ -510,9 +508,6 @@ struct ufs_event_hist {
* @event: array with event history.
*/
struct ufs_stats {
- u32 last_intr_status;
- u64 last_intr_ts;
-
u32 hibern8_exit_cnt;
u64 last_hibern8_exit_tstamp;
struct ufs_event_hist event[UFS_EVT_CNT];