On Mon, Apr 20, 2015 at 04:30:35PM -0700, Luis R. Rodriguez wrote:
> /**
> + * module_param_config_on_off - bool parameter with run time override
> + * @name: a valid C identifier which is the parameter name.
> + * @value: the actual lvalue to alter.
> + * @perm: visibility in sysfs.
> + * @config: kernel parameter which will enable this option if this
> + * kernel configuration option has been enabled.
> + *
> + * This lets you define a bool module paramter which by default will be
> + * set to true if the config option has been set on your kernel's
> + * configuration, otherwise it is set to false.
> + */
> +#define module_param_config_on_off(name, var, perm, config) \
> + static bool var = IS_ENABLED(config); \
> + module_param_named(name, var, bool, perm);
Maybe we want to make @config just a boolean initializer?
e.g. something like
#define module_param_config_on_off(name, var, perm, on_off) \
static bool var = on_off; \
module_param_named(name, var, bool, perm);
so that the caller does IS_ENABLED() or whatever that's necessary? It
just seems a bit too restricted.
Thanks.
--
tejun
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