Hi Richard,
On Mar 19, Richard Weinberger wrote:
> The ->get() function is not optional.
>
[..]
> static struct kernel_param_ops ubiblock_param_ops = {
> .set = ubiblock_set_param,
> + .get = param_get_charp,
> };
> module_param_cb(block, &ubiblock_param_ops, NULL, 0);
The comment for the function says they are both optional:
/**
* module_param_cb - general callback for a module/cmdline parameter
* @name: a valid C identifier which is the parameter name.
* @ops: the set & get operations for this parameter.
* @perm: visibility in sysfs.
*
* The ops can have NULL set or get functions.
*/
This has no visibility in sysfs, so I can't see how having a NULL
get() is a problem. What's the issue you're trying to fix here?
Maybe I'm missing something?
--
Ezequiel García, Free Electrons
Embedded Linux, Kernel and Android Engineering
http://free-electrons.com
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