powerpc: Fix erroneous lmb->memblock conversions

Oooops... we missed these. We incorrectly converted strings
used when parsing the device-tree on pseries, thus breaking
access to drconf memory and hotplug memory.

While at it, also revert some variable names that represent
something the FW calls "lmb" and thus don't need to be converted
to "memblock".

Signed-off-by: Benjamin Herrenschmidt <[e-mail]>
---

arch/powerpc/kernel/prom.c

···
 	u64 base, size, memblock_size;
 	unsigned int is_kexec_kdump = 0, rngs;
 
-	ls = of_get_flat_dt_prop(node, "ibm,memblock-size", &l);
+	ls = of_get_flat_dt_prop(node, "ibm,lmb-size", &l);
 	if (ls == NULL || l < dt_root_size_cells * sizeof(__be32))
 		return 0;
 	memblock_size = dt_mem_next_cell(dt_root_size_cells, &ls);

arch/powerpc/mm/numa.c

···
 }
 
 /*
- * Retreive and validate the ibm,memblock-size property for drconf memory
+ * Retreive and validate the ibm,lmb-size property for drconf memory
  * from the device tree.
  */
-static u64 of_get_memblock_size(struct device_node *memory)
+static u64 of_get_lmb_size(struct device_node *memory)
 {
 	const u32 *prop;
 	u32 len;
 
-	prop = of_get_property(memory, "ibm,memblock-size", &len);
+	prop = of_get_property(memory, "ibm,lmb-size", &len);
 	if (!prop || len < sizeof(unsigned int))
 		return 0;
 
···
 static inline int __init read_usm_ranges(const u32 **usm)
 {
 	/*
-	 * For each memblock in ibm,dynamic-memory a corresponding
+	 * For each lmb in ibm,dynamic-memory a corresponding
 	 * entry in linux,drconf-usable-memory property contains
 	 * a counter followed by that many (base, size) duple.
 	 * read the counter from linux,drconf-usable-memory
···
 {
 	const u32 *dm, *usm;
 	unsigned int n, rc, ranges, is_kexec_kdump = 0;
-	unsigned long memblock_size, base, size, sz;
+	unsigned long lmb_size, base, size, sz;
 	int nid;
 	struct assoc_arrays aa;
 
···
 	if (!n)
 		return;
 
-	memblock_size = of_get_memblock_size(memory);
-	if (!memblock_size)
+	lmb_size = of_get_lmb_size(memory);
+	if (!lmb_size)
 		return;
 
 	rc = of_get_assoc_arrays(memory, &aa);
···
 			continue;
 
 		base = drmem.base_addr;
-		size = memblock_size;
+		size = lmb_size;
 		ranges = 1;
 
 		if (is_kexec_kdump) {
···
 {
 	const u32 *dm;
 	unsigned int drconf_cell_cnt, rc;
-	unsigned long memblock_size;
+	unsigned long lmb_size;
 	struct assoc_arrays aa;
 	int nid = -1;
 
···
 	if (!drconf_cell_cnt)
 		return -1;
 
-	memblock_size = of_get_memblock_size(memory);
-	if (!memblock_size)
+	lmb_size = of_get_lmb_size(memory);
+	if (!lmb_size)
 		return -1;
 
 	rc = of_get_assoc_arrays(memory, &aa);
···
 			continue;
 
 		if ((scn_addr < drmem.base_addr)
-		    || (scn_addr >= (drmem.base_addr + memblock_size)))
+		    || (scn_addr >= (drmem.base_addr + lmb_size)))
 			continue;
 
 		nid = of_drconf_to_nid_single(&drmem, &aa);

arch/powerpc/platforms/pseries/hotplug-memory.c

···
 	const char *type;
 	const unsigned int *regs;
 	unsigned long base;
-	unsigned int memblock_size;
+	unsigned int lmb_size;
 	int ret = -EINVAL;
 
 	/*
···
 		return ret;
 
 	base = *(unsigned long *)regs;
-	memblock_size = regs[3];
+	lmb_size = regs[3];
 
-	ret = pseries_remove_memblock(base, memblock_size);
+	ret = pseries_remove_memblock(base, lmb_size);
 	return ret;
 }
 
···
 	const char *type;
 	const unsigned int *regs;
 	unsigned long base;
-	unsigned int memblock_size;
+	unsigned int lmb_size;
 	int ret = -EINVAL;
 
 	/*
···
 		return ret;
 
 	base = *(unsigned long *)regs;
-	memblock_size = regs[3];
+	lmb_size = regs[3];
 
 	/*
 	 * Update memory region to represent the memory add
 	 */
-	ret = memblock_add(base, memblock_size);
+	ret = memblock_add(base, lmb_size);
 	return (ret < 0) ? -EINVAL : 0;
 }
 
 static int pseries_drconf_memory(unsigned long *base, unsigned int action)
 {
 	struct device_node *np;
-	const unsigned long *memblock_size;
+	const unsigned long *lmb_size;
 	int rc;
 
 	np = of_find_node_by_path("/ibm,dynamic-reconfiguration-memory");
 	if (!np)
 		return -EINVAL;
 
-	memblock_size = of_get_property(np, "ibm,memblock-size", NULL);
-	if (!memblock_size) {
+	lmb_size = of_get_property(np, "ibm,lmb-size", NULL);
+	if (!lmb_size) {
 		of_node_put(np);
 		return -EINVAL;
 	}
 
 	if (action == PSERIES_DRCONF_MEM_ADD) {
-		rc = memblock_add(*base, *memblock_size);
+		rc = memblock_add(*base, *lmb_size);
 		rc = (rc < 0) ? -EINVAL : 0;
 	} else if (action == PSERIES_DRCONF_MEM_REMOVE) {
-		rc = pseries_remove_memblock(*base, *memblock_size);
+		rc = pseries_remove_memblock(*base, *lmb_size);
 	} else {
 		rc = -EINVAL;
 	}