Hi,
> On Thu, Jul 19, 2012 at 05:15:57PM +0530, Ajay Kumar Gupta wrote:
> > diff --git a/drivers/usb/musb/musb_core.c
> > b/drivers/usb/musb/musb_core.c index 89d1871..3e09984 100644
> > --- a/drivers/usb/musb/musb_core.c
> > +++ b/drivers/usb/musb/musb_core.c
> > @@ -99,6 +99,7 @@
> > #include <linux/prefetch.h>
> > #include <linux/platform_device.h>
> > #include <linux/io.h>
> > +#include <linux/idr.h>
> >
> > #include "musb_core.h"
> >
> > @@ -114,6 +115,7 @@
> >
> > #define MUSB_DRIVER_NAME "musb-hdrc"
> > const char musb_driver_name[] = MUSB_DRIVER_NAME;
> > +static DEFINE_IDA(musb_ida);
> >
> > MODULE_DESCRIPTION(DRIVER_INFO);
> > MODULE_AUTHOR(DRIVER_AUTHOR);
> > @@ -130,6 +132,33 @@ static inline struct musb *dev_to_musb(struct
> > device *dev)
> >
> >
> > /*--------------------------------------------------------------------
> > -----*/
> >
> > +int musb_get_id(struct device *dev, gfp_t gfp_mask) {
> > + int ret;
> > + int id;
> > +
> > + ret = ida_pre_get(&musb_ida, gfp_mask);
> > + if (!ret) {
> > + dev_err(dev, "failed to reserve resource for id\n");
> > + return -ENOMEM;
> > + }
> > +
> > + ret = ida_get_new(&musb_ida, &id);
> > + if (ret < 0) {
> > + dev_err(dev, "failed to allocate a new id\n");
> > + return ret;
> > + }
> > +
> > + return id;
> > +}
> > +
> > +void musb_put_id(struct device *dev, int id) {
> > +
> > + dev_dbg(dev, "removing id %d\n", id);
> > + ida_remove(&musb_ida, id);
> > +}
>
> both of these should be EXPORT_SYMBOL_GPL() for cases when musb and glue are
> compiled as modules.
Sure. I will fix this.
Ajay
>
> --
> balbi
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