On Fri, Dec 04, 2015 at 03:15:45PM +0100, Vlastimil Babka wrote: > On 12/03/2015 07:38 PM, yalin wang wrote: > >that’s all, see cpumask_pr_args(masks) macro, > >it also use macro and %*pb to print cpu mask . > >i think this method is not very complex to use . > > Well, one also has to write the appropriate translation tables. > > >search source code , > >there is lots of printk to print flag into hex number : > >$ grep -n -r 'printk.*flag.*%x’ . > >it will be great if this flag string print is generic. > > I think it can always be done later, this is an internal API. For now we > just have 3 quite generic flags, so let's not over-engineer things right > now. >
As long as it is never used in the TP_printk() part of a tracepoint. As soon as it is, trace-cmd and perf will update parse-events to handle that parameter, and as soon as that is done, it becomes a userspace ABI. Just be warned. -- Steve -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/