In preparation to stop storing the full node path in full_name, remove the
dependency on full_name from dlpar_attach_node(). Callers of
dlpar_attach_node() already have the parent device_node, so just pass the
parent node into dlpar_attach_node instead of the path. This avoids doing
a lookup of the parent node by the path.
Signed-off-by: Rob Herring <robh@xxxxxxxxxx>
Cc: Benjamin Herrenschmidt <benh@xxxxxxxxxxxxxxxxxxx>
Cc: Paul Mackerras <paulus@xxxxxxxxx>
Cc: Michael Ellerman <mpe@xxxxxxxxxxxxxx>
Cc: linuxppc-dev@xxxxxxxxxxxxxxxx
---
arch/powerpc/platforms/pseries/dlpar.c | 6 ++----
arch/powerpc/platforms/pseries/hotplug-cpu.c | 2 +-
arch/powerpc/platforms/pseries/mobility.c | 2 +-
arch/powerpc/platforms/pseries/pseries.h | 2 +-
4 files changed, 5 insertions(+), 7 deletions(-)
diff --git a/arch/powerpc/platforms/pseries/dlpar.c b/arch/powerpc/platforms/pseries/dlpar.c
index 80b84c9c8509..783f36364690 100644
--- a/arch/powerpc/platforms/pseries/dlpar.c
+++ b/arch/powerpc/platforms/pseries/dlpar.c
@@ -254,13 +254,11 @@ struct device_node *dlpar_configure_connector(__be32 drc_index,
return first_dn;
}
-int dlpar_attach_node(struct device_node *dn)
+int dlpar_attach_node(struct device_node *dn, struct device_node *parent)
{
int rc;
- dn->parent = pseries_of_derive_parent(dn->full_name);
- if (IS_ERR(dn->parent))
- return PTR_ERR(dn->parent);
+ dn->parent = parent;
rc = of_attach_node(dn);
if (rc) {
diff --git a/arch/powerpc/platforms/pseries/hotplug-cpu.c b/arch/powerpc/platforms/pseries/hotplug-cpu.c
index 0a93093fbcef..b357f1ae0b0a 100644
--- a/arch/powerpc/platforms/pseries/hotplug-cpu.c
+++ b/arch/powerpc/platforms/pseries/hotplug-cpu.c
@@ -463,7 +463,7 @@ static ssize_t dlpar_cpu_add(u32 drc_index)
return -EINVAL;
}
- rc = dlpar_attach_node(dn);
+ rc = dlpar_attach_node(dn, parent);
if (rc) {
saved_rc = rc;
pr_warn("Failed to attach node %s, rc: %d, drc index: %x\n",
diff --git a/arch/powerpc/platforms/pseries/mobility.c b/arch/powerpc/platforms/pseries/mobility.c
index 2da4851eff99..210ce632d63e 100644
--- a/arch/powerpc/platforms/pseries/mobility.c
+++ b/arch/powerpc/platforms/pseries/mobility.c
@@ -229,7 +229,7 @@ static int add_dt_node(__be32 parent_phandle, __be32 drc_index)
if (!dn)
return -ENOENT;
- rc = dlpar_attach_node(dn);
+ rc = dlpar_attach_node(dn, parent_dn);
if (rc)
dlpar_free_cc_nodes(dn);
diff --git a/arch/powerpc/platforms/pseries/pseries.h b/arch/powerpc/platforms/pseries/pseries.h
index 1361a9db534b..4470a3194311 100644
--- a/arch/powerpc/platforms/pseries/pseries.h
+++ b/arch/powerpc/platforms/pseries/pseries.h
@@ -46,7 +46,7 @@ extern void dlpar_free_cc_nodes(struct device_node *);
extern void dlpar_free_cc_property(struct property *);
extern struct device_node *dlpar_configure_connector(__be32,
struct device_node *);
-extern int dlpar_attach_node(struct device_node *);
+extern int dlpar_attach_node(struct device_node *, struct device_node *);
extern int dlpar_detach_node(struct device_node *);
extern int dlpar_acquire_drc(u32 drc_index);
extern int dlpar_release_drc(u32 drc_index);
--
2.11.0
--
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