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kbuild: fix single target build for external module

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commit e07db28eea upstream.

Building a single target in an external module fails due to missing
.tmp_versions directory.

For example,

  $ make -C /lib/modules/$(uname -r)/build M=$PWD foo.o

will fail in the following way:

  CC [M]  /home/masahiro/foo/foo.o
/bin/sh: 1: cannot create /home/masahiro/foo/.tmp_versions/foo.mod: Directory nonexistent

This is because $(cmd_crmodverdir) is executed only before building
/, %/, %.ko single targets of external modules. Create .tmp_versions
in the 'prepare' target.

Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Masahiro Yamada 2018-11-22 08:11:54 +09:00 • committed by Greg Kroah-Hartman
commit 1749c7f289
1 changed files with 3 additions and 8 deletions
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