linux-kernel - [PATCH] usb: ehci-mv: Fix missing iomem in cast

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Message-Id: <20200103164031.4089-1-krzk@kernel.org>
Date:   Fri,  3 Jan 2020 17:40:31 +0100
From:   Krzysztof Kozlowski <krzk@...nel.org>
To:     Alan Stern <stern@...land.harvard.edu>,
        Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        linux-usb@...r.kernel.org, linux-kernel@...r.kernel.org
Cc:     Krzysztof Kozlowski <krzk@...nel.org>
Subject: [PATCH] usb: ehci-mv: Fix missing iomem in cast

Fix missing __iomem in cast to struct ehci_caps.  This fixes the Sparse
warning visible on x86_64 compile test:

   drivers/usb/host/ehci-mv.c:167:23: warning: cast removes address space '<asn:2>' of expression
   drivers/usb/host/ehci-mv.c:167:20: warning: incorrect type in assignment (different address spaces)
   drivers/usb/host/ehci-mv.c:167:20:    expected struct ehci_caps [noderef] <asn:2> *caps
   drivers/usb/host/ehci-mv.c:167:20:    got struct ehci_caps *

Reported-by: kbuild test robot <lkp@...el.com>
Signed-off-by: Krzysztof Kozlowski <krzk@...nel.org>
---
 drivers/usb/host/ehci-mv.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/usb/host/ehci-mv.c b/drivers/usb/host/ehci-mv.c
index 66ec1fdf9fe7..16df3cfbed26 100644
--- a/drivers/usb/host/ehci-mv.c
+++ b/drivers/usb/host/ehci-mv.c
@@ -164,7 +164,7 @@ static int mv_ehci_probe(struct platform_device *pdev)
 	}
 
 	ehci = hcd_to_ehci(hcd);
-	ehci->caps = (struct ehci_caps *) ehci_mv->cap_regs;
+	ehci->caps = (struct ehci_caps __iomem *) ehci_mv->cap_regs;
 
 	if (ehci_mv->mode == MV_USB_MODE_OTG) {
 		ehci_mv->otg = devm_usb_get_phy(&pdev->dev, USB_PHY_TYPE_USB2);
-- 
2.17.1