On Thu, Jun 11, 2009 at 07:26:04AM +0530, Subrata Modak wrote:
> On Thu, 2009-06-11 at 11:05 +1000, Stephen Rothwell wrote:
> > Hi Subrata,
> >
> > On Wed, 10 Jun 2009 23:13:23 +0530 Subrata Modak <subrata@xxxxxxxxxxxxxxxxxx> wrote:
> > >
> > > /* Find the TBI PHY. If it's not there, we don't support SGMII */
> > > - ph = of_get_property(np, "tbi-handle", NULL);
> > > + ph = (phandle *)of_get_property(np, "tbi-handle", NULL);
> >
> > You don't need this cast because of_get_property() returns "void *".
>
> Stephen,
>
> True. But without this gcc complains:
>
> CC [M] drivers/net/ucc_geth.o
> drivers/net/ucc_geth.c: In function ‘ucc_geth_probe’:
> drivers/net/ucc_geth.c:3824: warning: assignment discards qualifiers
> from pointer target type
>
> Else gcc just builds fine:
>
> CC [M] drivers/net/ucc_geth.o
>
> This is an just an extra caution to fix both the build and warning
> regression(s).
ph needs to be const.
I think the following untested (and hence un-signed-off-by) patch is closer,
however I also think that the whole SGMII setup code could use the various OF
helper functions better :)
diff --git a/drivers/net/ucc_geth.c b/drivers/net/ucc_geth.c
index e2f2e91..796253d 100644
--- a/drivers/net/ucc_geth.c
+++ b/drivers/net/ucc_geth.c
@@ -3603,6 +3603,7 @@ static int ucc_geth_probe(struct of_device* ofdev, const struct of_device_id *ma
struct resource res;
struct device_node *phy;
int err, ucc_num, max_speed = 0;
+ const phandle *ph;
const u32 *fixed_link;
const unsigned int *prop;
const char *sprop;
@@ -3821,7 +3822,7 @@ static int ucc_geth_probe(struct of_device* ofdev, const struct of_device_id *ma
/* Find the TBI PHY. If it's not there, we don't support SGMII */
ph = of_get_property(np, "tbi-handle", NULL);
if (ph) {
- struct device_node *tbi = of_find_node_by_phandle(*ph);
+ struct device_node *tbi = of_find_node_by_phandle(*ph), *mdio;
struct of_device *ofdev;
struct mii_bus *bus;
const unsigned int *id;
Yours Tony
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