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 69c7c039b5facc764d44269516137666e1666f34..136b863bc1d459b77ae91574b101d3d59f230739 100644 (file)
--- a/drivers/scsi/ufs/ufshcd.c
+++ b/drivers/scsi/ufs/ufshcd.c
@@ -6013,7 +6013,7 @@ 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: ");