Re: [PATCH] driver core:Export the symbol device_is_bound

[Greg Kroah-Hartman]

On Wed, Jun 03, 2020 at 12:09:52AM +0530, Sandeep Maheswaram wrote:
> Export the symbol device_is_bound so that it can be used by the modules.

What modules need this?

> This change was suggested to solve the allmodconfig build error on adding
> the patch https://lore.kernel.org/patchwork/patch/1218628/
> 
> Signed-off-by: Sandeep Maheswaram <sanm@xxxxxxxxxxxxxx>
> ---
>  drivers/base/dd.c | 1 +
>  1 file changed, 1 insertion(+)
> 
> diff --git a/drivers/base/dd.c b/drivers/base/dd.c
> index 9a1d940..65d16ce 100644
> --- a/drivers/base/dd.c
> +++ b/drivers/base/dd.c
> @@ -337,6 +337,7 @@ bool device_is_bound(struct device *dev)
>  {
>  	return dev->p && klist_node_attached(&dev->p->knode_driver);
>  }
> +EXPORT_SYMBOL_GPL(device_is_bound);

If a driver needs to use this, something is really wrong with it.  What
happens right after this, the state could have changed?

So, no, sorry, this is not a good idea.

thanks,

greg k-h