On Thu, Jun 20, 2019 at 08:56:10PM +0900, Masahiro Yamada wrote: > > The similar question, and the answer is here: > https://lkml.org/lkml/2019/1/17/584 But it doesn't work with O=: $ rm -rf build-compile/fs/cifs $ make O=build-compile fs/cifs make[1]: Entering directory '/home/herbert/src/build/kernel/test/build-compile' make[1]: Nothing to be done for '../fs/cifs'. make[1]: Leaving directory '/home/herbert/src/build/kernel/test/build-compile' $ Cheers, -- Email: Herbert Xu <herbert@xxxxxxxxxxxxxxxxxxx> Home Page: http://gondor.apana.org.au/~herbert/ PGP Key: http://gondor.apana.org.au/~herbert/pubkey.txt