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Subject[PATCH] usb: ohci-omap: avoid unused-variable warning
Date
From: Arnd Bergmann <arnd@arndb.de>

The dead code removal has led to 'need_transceiver' not being
used at all when OTG support is disabled:

drivers/usb/host/ohci-omap.c: In function 'ohci_omap_reset':
drivers/usb/host/ohci-omap.c:99:33: error: unused variable 'need_transceiver' [-Werror=unused-variable]
99 | int need_transceiver = (config->otg != 0);

Change the #ifdef check into an IS_ENABLED() check to make the
code more readable and let the compiler see where it is used.

Fixes: 8825acd7cc8a ("ARM: omap1: remove dead code")
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
---
The patch that caused the issue is in the boardfile-removal branch
of the soc tree. I would just add the patch there.
---
drivers/usb/host/ohci-omap.c | 8 +-------
1 file changed, 1 insertion(+), 7 deletions(-)

diff --git a/drivers/usb/host/ohci-omap.c b/drivers/usb/host/ohci-omap.c
index 3d57b9454a27..78088cd46908 100644
--- a/drivers/usb/host/ohci-omap.c
+++ b/drivers/usb/host/ohci-omap.c
@@ -67,8 +67,6 @@ static void omap_ohci_clock_power(struct ohci_omap_priv *priv, int on)
}
}

-#ifdef CONFIG_USB_OTG
-
static void start_hnp(struct ohci_hcd *ohci)
{
struct usb_hcd *hcd = ohci_to_hcd(ohci);
@@ -87,8 +85,6 @@ static void start_hnp(struct ohci_hcd *ohci)
local_irq_restore(flags);
}

-#endif
-
/*-------------------------------------------------------------------------*/

static int ohci_omap_reset(struct usb_hcd *hcd)
@@ -111,8 +107,7 @@ static int ohci_omap_reset(struct usb_hcd *hcd)
if (config->ocpi_enable)
config->ocpi_enable();

-#ifdef CONFIG_USB_OTG
- if (need_transceiver) {
+ if (IS_ENABLED(CONFIG_USB_OTG) && need_transceiver) {
hcd->usb_phy = usb_get_phy(USB_PHY_TYPE_USB2);
if (!IS_ERR_OR_NULL(hcd->usb_phy)) {
int status = otg_set_host(hcd->usb_phy->otg,
@@ -129,7 +124,6 @@ static int ohci_omap_reset(struct usb_hcd *hcd)
hcd->skip_phy_initialization = 1;
ohci->start_hnp = start_hnp;
}
-#endif

omap_ohci_clock_power(priv, 1);

--
2.39.0
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