From: Bart Van Assche <bart.vanassche@wdc.com>
Date: Wed, 11 Oct 2017 10:49:00 -0700
Subject: IB/hns: Annotate iomem pointers correctly
Patch-mainline: v4.15-rc1
Git-commit: cc4ed08bc56ee42a7ade7602c242007c73a7c94b
References: bsc#1104427 FATE#326416

This patch avoids that sparse complains that there is an address
space mismatch.

Signed-off-by: Bart Van Assche <bart.vanassche@wdc.com>
Cc: Lijun Ou <oulijun@huawei.com>
Cc: Wei Hu (Xavier) <xavier.huwei@huawei.com>
Cc: Shaobo Xu <xushaobo2@huawei.com>
Signed-off-by: Doug Ledford <dledford@redhat.com>
Acked-by: Thomas Bogendoerfer <tbogendoerfer@suse.de>
---
 drivers/infiniband/hw/hns/hns_roce_eq.c    |    6 +++---
 drivers/infiniband/hw/hns/hns_roce_hw_v1.c |    9 +++++----
 drivers/infiniband/hw/hns/hns_roce_hw_v2.c |    3 ++-
 3 files changed, 10 insertions(+), 8 deletions(-)

--- a/drivers/infiniband/hw/hns/hns_roce_eq.c
+++ b/drivers/infiniband/hw/hns/hns_roce_eq.c
@@ -558,7 +558,7 @@ static int hns_roce_create_eq(struct hns
 	writel(eqshift_val, eqc);
 
 	/* Configure eq extended address 12~44bit */
-	writel((u32)(eq->buf_list[0].map >> 12), (u8 *)eqc + 4);
+	writel((u32)(eq->buf_list[0].map >> 12), eqc + 4);
 
 	/*
 	 * Configure eq extended address 45~49 bit.
@@ -572,13 +572,13 @@ static int hns_roce_create_eq(struct hns
 	roce_set_field(eqcuridx_val,
 		       ROCEE_CAEP_AEQE_CUR_IDX_CAEP_AEQE_CUR_IDX_M,
 		       ROCEE_CAEP_AEQE_CUR_IDX_CAEP_AEQE_CUR_IDX_S, 0);
-	writel(eqcuridx_val, (u8 *)eqc + 8);
+	writel(eqcuridx_val, eqc + 8);
 
 	/* Configure eq consumer index */
 	roce_set_field(eqconsindx_val,
 		       ROCEE_CAEP_AEQE_CONS_IDX_CAEP_AEQE_CONS_IDX_M,
 		       ROCEE_CAEP_AEQE_CONS_IDX_CAEP_AEQE_CONS_IDX_S, 0);
-	writel(eqconsindx_val, (u8 *)eqc + 0xc);
+	writel(eqconsindx_val, eqc + 0xc);
 
 	return 0;
 
--- a/drivers/infiniband/hw/hns/hns_roce_hw_v1.c
+++ b/drivers/infiniband/hw/hns/hns_roce_hw_v1.c
@@ -1639,7 +1639,7 @@ static int hns_roce_v1_post_mbox(struct
 				 u64 out_param, u32 in_modifier, u8 op_modifier,
 				 u16 op, u16 token, int event)
 {
-	u32 *hcr = (u32 *)(hr_dev->reg_base + ROCEE_MB1_REG);
+	u32 __iomem *hcr = (u32 __iomem *)(hr_dev->reg_base + ROCEE_MB1_REG);
 	unsigned long end;
 	u32 val = 0;
 
@@ -2534,7 +2534,7 @@ static int hns_roce_v1_m_sqp(struct ib_q
 	int rq_pa_start;
 	u32 reg_val;
 	u64 *mtts;
-	u32 *addr;
+	u32 __iomem *addr;
 
 	context = kzalloc(sizeof(*context), GFP_KERNEL);
 	if (!context)
@@ -2616,8 +2616,9 @@ static int hns_roce_v1_m_sqp(struct ib_q
 			       QP1C_BYTES_40_SQ_CUR_IDX_S, 0);
 
 		/* Copy context to QP1C register */
-		addr = (u32 *)(hr_dev->reg_base + ROCEE_QP1C_CFG0_0_REG +
-			hr_qp->phy_port * sizeof(*context));
+		addr = (u32 __iomem *)(hr_dev->reg_base +
+				       ROCEE_QP1C_CFG0_0_REG +
+				       hr_qp->phy_port * sizeof(*context));
 
 		writel(context->qp1c_bytes_4, addr);
 		writel(context->sq_rq_bt_l, addr + 1);
--- a/drivers/infiniband/hw/hns/hns_roce_hw_v2.c
+++ b/drivers/infiniband/hw/hns/hns_roce_hw_v2.c
@@ -976,7 +976,8 @@ static int hns_roce_v2_post_mbox(struct
 				 u16 op, u16 token, int event)
 {
 	struct device *dev = hr_dev->dev;
-	u32 *hcr = (u32 *)(hr_dev->reg_base + ROCEE_VF_MB_CFG0_REG);
+	u32 __iomem *hcr = (u32 __iomem *)(hr_dev->reg_base +
+					   ROCEE_VF_MB_CFG0_REG);
 	unsigned long end;
 	u32 val0 = 0;
 	u32 val1 = 0;