lkml.org 
[lkml]   [2014]   [Mar]   [19]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
/
Date
From
SubjectRe: [PATCH 2/2] UBI: block: Implement kernel_param_ops->get()
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
--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@vger.kernel.org
More majordomo info at http://vger.kernel.org/majordomo-info.html
Please read the FAQ at http://www.tux.org/lkml/

\
 
 \ /
  Last update: 2014-03-19 15:02    [W:1.864 / U:2.660 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site