On Sun, 11 Jul 2021 02:55:02 +0000, Vincent Pelletier <plr.vincent@xxxxxxxxx> wrote: > On Sat, 10 Jul 2021 09:08:13 -0700, Guenter Roeck <linux@xxxxxxxxxxxx> wrote: > > Unnecessary include. > [...] > > I don't immediately see where this include is needed. Is this a > > leftover ? > [...] > > Same here. > > Are there ways to systematically tell which includes are useless > besides commenting them out all and uncommenting until it compiles ? > (if that is even a good idea) I tried this, just to get a baseline: the module compiles with just linux/hwmon.h linux/mfd/da9063/core.h linux/module.h linux/platform_device.h linux/regmap.h Beyond what you suggested this also gets rid of: - seems reasonable: - linux/delay.h - linux/init.h - linux/slab.h - looks suspicious to me: - linux/err.h, which means the error constants are indirectly imported. Removing it feels brittle. - linux/kernel.h, although to my surprise a lot of c files do not include it. By default I'll drop the former and keep the latter in the next version, please let me know if another combination is preferred. -- Vincent Pelletier GPG fingerprint 983A E8B7 3B91 1598 7A92 3845 CAC9 3691 4257 B0C1