On 05/21/15 10:57, Dale wrote: > walt wrote: >> I just wasted some time figuring out this mess: >> >> I just updated google-chrome, which printed this confusing warning message: >> >> "CONFIG_USED_NS not seen when it should be" >> >> First, there's a typo: it should read "CONFIG_USER_NS" >> ^ >> >> Then, after I figured out that CONFIG_USER_NS is a kernel config item, >> requiring reinstallation of my kernel, I wasted more time figuring out >> (for the n'th time) that you shouldn't just change a single kernel config >> item and do "make" because that shortcut can break important things. >> >> No, you should do "make clean" first, and then do "make" etc. > Doesn't "make clean" clear out your config? I've changed one thing > before and just run "make" and it work just fine. > > Dale > > :-) :-) >
No, "make clean" does not clear your config. It depends on what you change - I guess their Makefiles/Kconfig doesn't specify all the dependencies for CONFIG_USER_NS. If you're on a decent machine, the kernel builds pretty quick anyways, and a clean build will always be correct. Alec
