On Fri, Jan 18, 2013 at 02:17:09PM +0200, Roger Quadros wrote: > +/* only PHY and UNUSED modes don't need TLL */ > +#define omap_usb_mode_needs_tll(x) ((x != OMAP_USBHS_PORT_MODE_UNUSED) &&\ > + (x != OMAP_EHCI_PORT_MODE_PHY)) Growl. These parens do not make anything safer at all - they just obfuscate. The safe version of the above macro would have been: #define omap_usb_mode_needs_tll(x) ((x) != OMAP_USBHS_PORT_MODE_UNUSED &&\ (x) != OMAP_EHCI_PORT_MODE_PHY) If you're going to use a macro argument in an expression, it needs parens. Simple expressions like a != b && c != d do _not_ need parens. -- To unsubscribe from this list: send the line "unsubscribe linux-usb" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html