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libpayload/usb: Add format string checking to usb_debug 

This turns on the compiler's printf style format string checker.

BUG=b:167517417
TEST=enabled all USB controllers on volteer and fixed resulting
	compiler errors when USB_DEBUG is enabled.

Change-Id: Ic94ebcbafdde8a5f79278b5635111b99af40f892
Signed-off-by: Caveh Jalali <caveh@chromium.org>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/45025
Reviewed-by: Tim Wawrzynczak <twawrzynczak@chromium.org>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
This commit is contained in:
Caveh Jalali 2020-08-28 17:14:51 -07:00 committed by Patrick Georgi
parent 8079a6a558
commit 6de5bf6698
1 changed files with 1 additions and 1 deletions
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2
payloads/libpayload/include/usb/usb.h
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@ -334,7 +334,7 @@ int usb_interface_check(u16 vendor, u16 device);
#define USB_QUIRK_TEST (1 << 31)
#define USB_QUIRK_NONE 0
static inline void usb_debug(const char *fmt, ...)
static inline void __attribute__((format(printf, 1, 2))) usb_debug(const char *fmt, ...)
{
#ifdef USB_DEBUG
va_list ap;