On Fri, Nov 06, 2020 at 03:37:44PM +0000, Sudip Mukherjee wrote: > When CONFIG_MXC_CLK_SCU is configured as 'm' the build fails as it > is unable to find device_is_bound(). The error being: > ERROR: modpost: "device_is_bound" [drivers/clk/imx/clk-imx-scu.ko] > undefined! > > Export the symbol so that the module finds it. > > Signed-off-by: Sudip Mukherjee <sudipm.mukher...@gmail.com> > --- > > drivers/base/dd.c | 1 + > 1 file changed, 1 insertion(+) > > diff --git a/drivers/base/dd.c b/drivers/base/dd.c > index 148e81969e04..a796a57e5efb 100644 > --- a/drivers/base/dd.c > +++ b/drivers/base/dd.c > @@ -353,6 +353,7 @@ bool device_is_bound(struct device *dev) > { > return dev->p && klist_node_attached(&dev->p->knode_driver); > } > +EXPORT_SYMBOL(device_is_bound);
Everything else in this file uses EXPORT_SYMBOL_GPL, so I don't see why this would be special. That being said a good rationale of why it is a good idea to use this in drivers is also required.