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Diffstat (limited to 'Documentation/kbuild')
| -rw-r--r-- | Documentation/kbuild/kconfig-language.rst | 12 |
1 files changed, 11 insertions, 1 deletions
diff --git a/Documentation/kbuild/kconfig-language.rst b/Documentation/kbuild/kconfig-language.rst index d0111dd26410..d4d988aea679 100644 --- a/Documentation/kbuild/kconfig-language.rst +++ b/Documentation/kbuild/kconfig-language.rst @@ -173,7 +173,7 @@ applicable everywhere (see syntax). === === ============= ============== n y n N/m/y m y m M/y/n - y y y Y/n + y y y Y/m/n y n * N === === ============= ============== @@ -181,6 +181,16 @@ applicable everywhere (see syntax). ability to hook into a secondary subsystem while allowing the user to configure that subsystem out without also having to unset these drivers. + Note: If the combination of FOO=y and BAR=m causes a link error, + you can guard the function call with IS_REACHABLE():: + + foo_init() + { + if (IS_REACHABLE(CONFIG_BAZ)) + baz_register(&foo); + ... + } + - limiting menu display: "visible if" <expr> This attribute is only applicable to menu blocks, if the condition is |