linux-kernel - [PATCH v14 7/7] PCI: endpoint: pci-epf-vntb: fix sparse build warning at ntb->reg

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Date:   Fri, 28 Oct 2022 11:57:03 -0400
From:   Frank Li <Frank.Li@....com>
To:     frank.li@....com
Cc:     allenbh@...il.com, bhelgaas@...gle.com, dave.jiang@...el.com,
        helgaas@...nel.org, imx@...ts.linux.dev, jdmason@...zu.us,
        kw@...ux.com, linux-kernel@...r.kernel.org,
        linux-pci@...r.kernel.org, lpieralisi@...nel.org, mani@...nel.org,
        ntb@...ts.linux.dev
Subject: [PATCH v14 7/7] PCI: endpoint: pci-epf-vntb: fix sparse build warning at ntb->reg

From: Frank Li <frank.li@....com>

  pci-epf-vntb.c:1128:33: sparse:     expected void [noderef] __iomem *base
  pci-epf-vntb.c:1128:33: sparse:     got struct epf_ntb_ctrl *reg

Add __iomem type convert in vntb_epf_peer_spad_read() and
vntb_epf_peer_spad_write().

Signed-off-by: Frank Li <frank.li@....com>
---
 drivers/pci/endpoint/functions/pci-epf-vntb.c | 8 ++++----
 1 file changed, 4 insertions(+), 4 deletions(-)

diff --git a/drivers/pci/endpoint/functions/pci-epf-vntb.c b/drivers/pci/endpoint/functions/pci-epf-vntb.c
index db3455c1589b..55b7599345c6 100644
--- a/drivers/pci/endpoint/functions/pci-epf-vntb.c
+++ b/drivers/pci/endpoint/functions/pci-epf-vntb.c
@@ -1120,7 +1120,7 @@ static u32 vntb_epf_spad_read(struct ntb_dev *ndev, int idx)
 	struct epf_ntb *ntb = ntb_ndev(ndev);
 	int off = ntb->reg->spad_offset, ct = ntb->reg->spad_count * sizeof(u32);
 	u32 val;
-	void __iomem *base = ntb->reg;
+	void __iomem *base = (void __iomem *)ntb->reg;
 
 	val = readl(base + off + ct + idx * sizeof(u32));
 	return val;
@@ -1131,7 +1131,7 @@ static int vntb_epf_spad_write(struct ntb_dev *ndev, int idx, u32 val)
 	struct epf_ntb *ntb = ntb_ndev(ndev);
 	struct epf_ntb_ctrl *ctrl = ntb->reg;
 	int off = ctrl->spad_offset, ct = ctrl->spad_count * sizeof(u32);
-	void __iomem *base = ntb->reg;
+	void __iomem *base = (void __iomem *)ntb->reg;
 
 	writel(val, base + off + ct + idx * sizeof(u32));
 	return 0;
@@ -1142,7 +1142,7 @@ static u32 vntb_epf_peer_spad_read(struct ntb_dev *ndev, int pidx, int idx)
 	struct epf_ntb *ntb = ntb_ndev(ndev);
 	struct epf_ntb_ctrl *ctrl = ntb->reg;
 	int off = ctrl->spad_offset;
-	void __iomem *base = ntb->reg;
+	void __iomem *base = (void __iomem *)ntb->reg;
 	u32 val;
 
 	val = readl(base + off + idx * sizeof(u32));
@@ -1154,7 +1154,7 @@ static int vntb_epf_peer_spad_write(struct ntb_dev *ndev, int pidx, int idx, u32
 	struct epf_ntb *ntb = ntb_ndev(ndev);
 	struct epf_ntb_ctrl *ctrl = ntb->reg;
 	int off = ctrl->spad_offset;
-	void __iomem *base = ntb->reg;
+	void __iomem *base = (void __iomem *)ntb->reg;
 
 	writel(val, base + off + idx * sizeof(u32));
 	return 0;
-- 
2.34.1