From: Xiaofei Tan <tanxiaofei@huawei.com>
Date: Wed, 2 May 2018 23:56:32 +0800
Subject: scsi: hisi_sas: remove redundant handling to event95 for v3
Git-commit: bf081d5da4fa3a0d0ef640868de1b9f644f633e0
Patch-mainline: v4.18-rc1
References: FATE#326253
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@huawei.com>
Signed-off-by: John Garry <john.garry@huawei.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Acked-by: Johannes Thumshirn <jthumshirn@suse.de>
---
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 026faeee5ead..d6e705ff9dad 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;
}