On Tue, Aug 25, 2015 at 09:34:00PM +0200, Thomas Gleixner wrote: > On Tue, 25 Aug 2015, Huang Shijie wrote: > > > When the dynamic debug is enabled for irq domain, the kernel will print out: > > ------------------------------------------------------ > > irqdomain:__irq_domain_add: irq: Added domain (null) > > ------------------------------------------------------ > > > > It does not print out the irq domain's name, since the @domain->name is > > NULL. > > Keep the log here just makes people nervous. > > Well, it might be NULL in your case, but there are enough cases where > its not NULL and the output valuable. In which case ?
The domain is allocated by kzalloc_node(), so @domain->name is NULL in the function. The @domain->name is set in other function, such as irq_domain_associate(). > > > Aside of that I don't understand what's making one nervous > here. People who enable that debug stuff should know that this can be > NULL and just deal with it. If they get nervous about it they probably > should not try to debug that code in the first place. okay. thanks Huang Shijie -- 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/
