On Thu, Apr 10, 2025 at 09:12:11PM +0800, Zijun Hu wrote: > From: Zijun Hu <quic_zijuhu@xxxxxxxxxxx> > > ERR_CAST() is normally used to cast an error-valued pointer type to > another different type, But the first ERR_CAST() is to cast away the > const in fwnode_create_software_node(). > > Add comment for this unusual ERR_CAST() usage. ... > + /* Only cast away the const by ERR_CAST() */ > if (IS_ERR(parent)) > return ERR_CAST(parent); TBH, I don't see the value of this comment. And looking into the code, I would rather drop this part. The current users do not rely on the any specific code to be returned and also they check parent to be valid beforehand. But let's hear others first. -- With Best Regards, Andy Shevchenko