Messages in this thread Patch in this message | | | From | Arnd Bergmann <> | Subject | [PATCH] [RFC] usb: gadget: avoid unusual inline assembly | Date | Mon, 27 Sep 2021 14:38:20 +0200 |
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From: Arnd Bergmann <arnd@arndb.de>
clang does not understand the "mrc%?" syntax:
drivers/usb/gadget/udc/pxa25x_udc.c:2330:11: error: invalid % escape in inline assembly string
I don't understand it either, but removing the %? here gets it to build. This is probably wrong and someone else should do a proper patch.
Any suggestions?
Signed-off-by: Arnd Bergmann <arnd@arndb.de> --- drivers/usb/gadget/udc/pxa25x_udc.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/drivers/usb/gadget/udc/pxa25x_udc.c b/drivers/usb/gadget/udc/pxa25x_udc.c index a09ec1d826b2..52cdfd8212d6 100644 --- a/drivers/usb/gadget/udc/pxa25x_udc.c +++ b/drivers/usb/gadget/udc/pxa25x_udc.c @@ -2325,7 +2325,7 @@ static int pxa25x_udc_probe(struct platform_device *pdev) pr_info("%s: version %s\n", driver_name, DRIVER_VERSION); /* insist on Intel/ARM/XScale */ - asm("mrc%? p15, 0, %0, c0, c0" : "=r" (chiprev)); + asm("mrc p15, 0, %0, c0, c0" : "=r" (chiprev)); if ((chiprev & CP15R0_VENDOR_MASK) != CP15R0_XSCALE_VALUE) { pr_err("%s: not XScale!\n", driver_name); return -ENODEV; -- 2.29.2
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