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kbuild: doc: remove documentation about copying Module.symvers around 

This is a left-over of commit 39808e451f ("kbuild: do not read
$(KBUILD_EXTMOD)/Module.symvers").

Kbuild no longer supports this way.

Signed-off-by: Masahiro Yamada <masahiroy@kernel.org>
This commit is contained in:
Masahiro Yamada 2020-05-21 13:31:17 +09:00
parent 8451791d1f
commit 9504bbe91e
1 changed files with 0 additions and 12 deletions
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12
Documentation/kbuild/modules.rst
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@ -528,18 +528,6 @@ build.
will then do the expected and compile both modules with
full knowledge of symbols from either module.
Use an extra Module.symvers file
When an external module is built, a Module.symvers file
is generated containing all exported symbols which are
not defined in the kernel. To get access to symbols
from bar.ko, copy the Module.symvers file from the
compilation of bar.ko to the directory where foo.ko is
built. During the module build, kbuild will read the
Module.symvers file in the directory of the external
module, and when the build is finished, a new
Module.symvers file is created containing the sum of
all symbols defined and not part of the kernel.
Use "make" variable KBUILD_EXTRA_SYMBOLS
If it is impractical to add a top-level kbuild file,
you can assign a space separated list