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author | Adrian Bunk <bunk@kernel.org> | 2008-05-03 23:15:35 (GMT) |
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committer | Sam Ravnborg <sam@ravnborg.org> | 2008-05-04 19:05:56 (GMT) |
commit | 2cb1e1257fb4d4d52c97e763ab262c2295aea4a8 (patch) | |
tree | c55192507c53bcbe5016cc5810e8f22f11b4fbc5 /Documentation/kbuild | |
parent | c4143a83031aef7ba87a62cf654d6d8fb4d8e76e (diff) | |
download | linux-fsl-qoriq-2cb1e1257fb4d4d52c97e763ab262c2295aea4a8.tar.xz |
kconfig-language.txt: remove bogus hint
For the use case the hint describe a simple dependency is
enough.
Signed-off-by: Adrian Bunk <bunk@kernel.org>
Acked-by: Randy Dunlap <randy.dunlap@oracle.com>
Diffstat (limited to 'Documentation/kbuild')
-rw-r--r-- | Documentation/kbuild/kconfig-language.txt | 24 |
1 files changed, 0 insertions, 24 deletions
diff --git a/Documentation/kbuild/kconfig-language.txt b/Documentation/kbuild/kconfig-language.txt index 00b950d..c412c24 100644 --- a/Documentation/kbuild/kconfig-language.txt +++ b/Documentation/kbuild/kconfig-language.txt @@ -377,27 +377,3 @@ config FOO limits FOO to module (=m) or disabled (=n). - -Build limited by a third config symbol which may be =y or =m -~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ -A common idiom that we see (and sometimes have problems with) is this: - -When option C in B (module or subsystem) uses interfaces from A (module -or subsystem), and both A and B are tristate (could be =y or =m if they -were independent of each other, but they aren't), then we need to limit -C such that it cannot be built statically if A is built as a loadable -module. (C already depends on B, so there is no dependency issue to -take care of here.) - -If A is linked statically into the kernel image, C can be built -statically or as loadable module(s). However, if A is built as loadable -module(s), then C must be restricted to loadable module(s) also. This -can be expressed in kconfig language as: - -config C - depends on A = y || A = B - -or for real examples, use this command in a kernel tree: - -$ find . -name Kconfig\* | xargs grep -ns "depends on.*=.*||.*=" | grep -v orig - |