On (23/08/19 15:54), Jesse T wrote: > > We recently were hit (unnecessarily hard) when after kernel uprev we > > figured that something wasn't working. The root cause was a rename of > > the CONFIG_FOO option between kernel releases, which make oldconfig > > doesn't warn/notify about. > > > > Would it be possible to add either a new --listunknown mode to conf or > > to somehow make it conf_warning("unknown symbol: %s\n", line) when it > > reads a line from oldconf that it cannot sym_find()? > > This makes sense and I brought up this scenario a couple of days ago > on a recent patch. > I can make a patch for this if needed. I posted an RFC patch a couple of days ago https://lore.kernel.org/all/20230817012007.131868-1-senozhatsky@xxxxxxxxxxxx/T/#u