Commit e27bea45 authored by Arnd Bergmann's avatar Arnd Bergmann Committed by Greg Kroah-Hartman
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usb: gadget: avoid unusual inline assembly 



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: default avatarArnd Bergmann <arnd@arndb.de>
Link: https://lore.kernel.org/r/20210927123830.1278953-1-arnd@kernel.org


Signed-off-by: default avatarGreg Kroah-Hartman <gregkh@linuxfoundation.org>
parent fde1fbed

drivers/usb/gadget/udc/pxa25x_udc.c

+1 −1
Original line number Diff line number Diff line
@@ -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;