scsi: ufs: Fix interrupt error message for shared interrupts

[ Upstream commit 6337f58cec030b34ced435b3d9d7d29d63c96e36 ]

The interrupt might be shared, in which case it is not an error for the
interrupt handler to be called when the interrupt status is zero, so don't
print the message unless there was enabled interrupt status.

Link: https://lore.kernel.org/r/20200811133936.19171-1-adrian.hunter@intel.com
Fixes: 9333d7757348 ("scsi: ufs: Fix irq return code")
Reviewed-by: Avri Altman <avri.altman@wdc.com>
Signed-off-by: Adrian Hunter <adrian.hunter@intel.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>

diff --git a/drivers/scsi/ufs/ufshcd.c b/drivers/scsi/ufs/ufshcd.c
index 7298adbcdec85701d562c6605a74a8fc12245bcb..3b80d692dd2e79b3b7392c87f09e52a4dc39f456 100644 (file)
--- a/drivers/scsi/ufs/ufshcd.c
+++ b/drivers/scsi/ufs/ufshcd.c
@@ -5803,7 +5803,7 @@ static irqreturn_t ufshcd_intr(int irq, void *__hba)
                intr_status = ufshcd_readl(hba, REG_INTERRUPT_STATUS);
        } while (intr_status && --retries);
 
-       if (retval == IRQ_NONE) {
+       if (enabled_intr_status && retval == IRQ_NONE) {
                dev_err(hba->dev, "%s: Unhandled interrupt 0x%08x\n",
                                        __func__, intr_status);
                ufshcd_dump_regs(hba, 0, UFSHCI_REG_SPACE_SIZE, "host_regs: ");