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usb: fix yellow in eb69211791

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Bootloaders with HAVE_USBSTACK but without HAVE_BOOTLOADER_USB_MODE end
up with USB_NUM_DRIVERS of 0 which leads to a warning due to a signed
number being checked to see if it's >= 0.

Work around this temporarily; the proper fix is to not build usb_core
and its class drivers when BOOTLOADER & !HAVE_BOOTLOADER_USB_MODE

Change-Id: I1b41140d31ba9df6b4c760478c4265d4e5584963
This commit is contained in:
Solomon Peachy 2026-01-27 15:19:55 -05:00
parent eb69211791
commit b349eea2c9
1 changed files with 6 additions and 2 deletions
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8
firmware/usbstack/usb_core.c
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@ -1182,8 +1182,12 @@ void usb_core_handle_notify(long id, intptr_t data)
#endif
break;
case USB_NOTIFY_CLASS_DRIVER: {
uint8_t index = data >> 24;
if(index >= USB_NUM_DRIVERS) {
/* HACK: index is uint8 but promoted to int to avoid a compiler
warning when USB_NUM_DRIVERS is 0, mainly in bootloaders.
This hack can be removed once usb_core is no longer built
for BOOTLOADER && !HAVE_BOOTLOADER_USB_MODE */
int index = data >> 24;
if(index < 0 || index >= USB_NUM_DRIVERS) {
logf("usb_core: invalid notification destination index=%u", index);
return;
}