powerpc: pseries: only store the device node basename in full_name

With dependencies on full_name containing the entire device node path
removed, stop storing the full_name in nodes created by
dlpar_configure_connector() and pSeries_reconfig_add_node().

Signed-off-by: Rob Herring <robh@kernel.org>
Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Michael Ellerman <mpe@ellerman.id.au>
Cc: linuxppc-dev@lists.ozlabs.org

diff --git a/arch/powerpc/platforms/pseries/dlpar.c b/arch/powerpc/platforms/pseries/dlpar.c
index 783f363..2e2efb1 100644 (file)
--- a/arch/powerpc/platforms/pseries/dlpar.c
+++ b/arch/powerpc/platforms/pseries/dlpar.c
@@ -75,24 +75,17 @@ static struct property *dlpar_parse_cc_property(struct cc_workarea *ccwa)
        return prop;
 }
 
-static struct device_node *dlpar_parse_cc_node(struct cc_workarea *ccwa,
-                                              const char *path)
+static struct device_node *dlpar_parse_cc_node(struct cc_workarea *ccwa)
 {
        struct device_node *dn;
-       char *name;
-
-       /* If parent node path is "/" advance path to NULL terminator to
-        * prevent double leading slashs in full_name.
-        */
-       if (!path[1])
-               path++;
+       const char *name;
 
        dn = kzalloc(sizeof(*dn), GFP_KERNEL);
        if (!dn)
                return NULL;
 
-       name = (char *)ccwa + be32_to_cpu(ccwa->name_offset);
-       dn->full_name = kasprintf(GFP_KERNEL, "%s/%s", path, name);
+       name = (const char *)ccwa + be32_to_cpu(ccwa->name_offset);
+       dn->full_name = kstrdup(name, GFP_KERNEL);
        if (!dn->full_name) {
                kfree(dn);
                return NULL;
@@ -148,7 +141,6 @@ struct device_node *dlpar_configure_connector(__be32 drc_index,
        struct property *last_property = NULL;
        struct cc_workarea *ccwa;
        char *data_buf;
-       const char *parent_path = parent->full_name;
        int cc_token;
        int rc = -1;
 
@@ -182,7 +174,7 @@ struct device_node *dlpar_configure_connector(__be32 drc_index,
                        break;
 
                case NEXT_SIBLING:
-                       dn = dlpar_parse_cc_node(ccwa, parent_path);
+                       dn = dlpar_parse_cc_node(ccwa);
                        if (!dn)
                                goto cc_error;
 
@@ -192,10 +184,7 @@ struct device_node *dlpar_configure_connector(__be32 drc_index,
                        break;
 
                case NEXT_CHILD:
-                       if (first_dn)
-                               parent_path = last_dn->full_name;
-
-                       dn = dlpar_parse_cc_node(ccwa, parent_path);
+                       dn = dlpar_parse_cc_node(ccwa);
                        if (!dn)
                                goto cc_error;
 
@@ -226,7 +215,6 @@ struct device_node *dlpar_configure_connector(__be32 drc_index,
 
                case PREV_PARENT:
                        last_dn = last_dn->parent;
-                       parent_path = last_dn->parent->full_name;
                        break;
 
                case CALL_AGAIN:

diff --git a/arch/powerpc/platforms/pseries/reconfig.c b/arch/powerpc/platforms/pseries/reconfig.c
index 296c188..f24d815 100644 (file)
--- a/arch/powerpc/platforms/pseries/reconfig.c
+++ b/arch/powerpc/platforms/pseries/reconfig.c
@@ -33,7 +33,7 @@ static int pSeries_reconfig_add_node(const char *path, struct property *proplist
        if (!np)
                goto out_err;
 
-       np->full_name = kstrdup(path, GFP_KERNEL);
+       np->full_name = kstrdup(kbasename(path), GFP_KERNEL);
        if (!np->full_name)
                goto out_err;