[PATCH 09/11] scsi: hisi_sas: remove redundant handling to event95 for v3

From: John Garry
Date: Wed May 02 2018 - 11:57:54 EST


From: Xiaofei Tan <tanxiaofei@xxxxxxxxxx>

Event95 is used for DFX purpose. The relevant bit for this
interrupt in the ENT_INT_SRC_MSK3 register has been disabled,
so remove the processing.

Signed-off-by: Xiaofei Tan <tanxiaofei@xxxxxxxxxx>
Signed-off-by: John Garry <john.garry@xxxxxxxxxx>
---
drivers/scsi/hisi_sas/hisi_sas_v3_hw.c | 9 +--------
1 file changed, 1 insertion(+), 8 deletions(-)

diff --git a/drivers/scsi/hisi_sas/hisi_sas_v3_hw.c b/drivers/scsi/hisi_sas/hisi_sas_v3_hw.c
index 026faee..d6e705f 100644
--- a/drivers/scsi/hisi_sas/hisi_sas_v3_hw.c
+++ b/drivers/scsi/hisi_sas/hisi_sas_v3_hw.c
@@ -1331,14 +1331,9 @@ static irqreturn_t int_chnl_int_v3_hw(int irq_no, void *p)
{
struct hisi_hba *hisi_hba = p;
struct device *dev = hisi_hba->dev;
- u32 ent_msk, ent_tmp, irq_msk;
+ u32 irq_msk;
int phy_no = 0;

- ent_msk = hisi_sas_read32(hisi_hba, ENT_INT_SRC_MSK3);
- ent_tmp = ent_msk;
- ent_msk |= ENT_INT_SRC_MSK3_ENT95_MSK_MSK;
- hisi_sas_write32(hisi_hba, ENT_INT_SRC_MSK3, ent_msk);
-
irq_msk = hisi_sas_read32(hisi_hba, CHNL_INT_STATUS)
& 0xeeeeeeee;

@@ -1415,8 +1410,6 @@ static irqreturn_t int_chnl_int_v3_hw(int irq_no, void *p)
phy_no++;
}

- hisi_sas_write32(hisi_hba, ENT_INT_SRC_MSK3, ent_tmp);
-
return IRQ_HANDLED;
}

--
1.9.1