Messages in this thread Patch in this message | | | From | "Enrico Weigelt, metux IT consult" <> | Subject | [PATCH 1/4] mod_devicetable: helper macro for declaring oftree module device table | Date | Sat, 1 Jun 2019 15:52:56 +0200 |
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Little helper macros that declares an oftree module device table, if CONFIG_OF is enabled. Otherwise it's just noop. Helpful for reducing the number of #ifdef's.
Instead of: MODULE_DEVICE_TABLE(of, foo); now use: MODULE_OF_TABLE(foo);
Or declare the whole table via: MODULE_DECLARE_OF_TABLE(foo, { .compatible = "foo" }, { .compatible = "bar" });
Signed-off-by: Enrico Weigelt, metux IT consult <info@metux.net> --- include/linux/mod_devicetable.h | 13 +++++++++++++ 1 file changed, 13 insertions(+)
diff --git a/include/linux/mod_devicetable.h b/include/linux/mod_devicetable.h index 448621c..5f4f2dc8 100644 --- a/include/linux/mod_devicetable.h +++ b/include/linux/mod_devicetable.h @@ -245,6 +245,19 @@ struct of_device_id { const void *data; }; +/* + * macro for adding the of module device table only if CONFIG_OF enabled + */ +#ifdef CONFIG_OF +#define MODULE_OF_TABLE(name) MODULE_DEVICE_TABLE(of,name) +#define MODULE_DECLARE_OF_TABLE(name,entries...) \ +static const struct of_device_id name[] = { entries, {} }; +#else +#define MODULE_OF_TABLE(name) +#define MODULE_DECLARE_OF_TABLE(name,entries...) \ +static const struct of_device_id *name = NULL; +#endif /* CONFIG_OF */ + /* VIO */ struct vio_device_id { char type[32]; -- 1.9.1
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