From: Ingo Molnar <mingo@xxxxxxx> Date: Thu, 15 Apr 2010 08:49:40 +0200 > Btw., WARN_ON trapping on PowerPC is clearly a PowerPC bug - there's a good > reason we have WARN_ON versus BUG_ON - it should be fixed. I disagree, an implementation should be allowed to use the most efficient implementation possible for both interfaces. I would be using traps for both on sparc64 if that were really feasible on sparc64 (and actually with gcc-4.5's "asm goto" it might actually be now) The WARN and BUG macros, when implemented without traps, have serious implications for overall code size and register pressure. -- To unsubscribe from this list: send the line "unsubscribe linux-next" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html