diff --git a/arch/powerpc/platforms/powermac/pci.c b/arch/powerpc/platforms/powermac/pci.c
index afb147e6b89f301d73f247ff9c45d93219fdb52d..34dfe1e9706f18b99a591c469ba667dabc319a87 100644
--- a/arch/powerpc/platforms/powermac/pci.c
+++ b/arch/powerpc/platforms/powermac/pci.c
@@ -608,7 +608,7 @@ static inline void grackle_set_loop_snoop(struct pci_controller *bp, int enable)
 static int __init
 setup_uninorth(struct pci_controller* hose, struct reg_property* addr)
 {
-	pci_assign_all_busses = 1;
+	pci_assign_all_buses = 1;
 	has_uninorth = 1;
 	hose->ops = &macrisc_pci_ops;
 	hose->cfg_addr = ioremap(addr->address + 0x800000, 0x1000);
@@ -640,7 +640,7 @@ static void __init setup_u3_agp(struct pci_controller* hose)
 {
 	/* On G5, we move AGP up to high bus number so we don't need
 	 * to reassign bus numbers for HT. If we ever have P2P bridges
-	 * on AGP, we'll have to move pci_assign_all_busses to the
+	 * on AGP, we'll have to move pci_assign_all_buses to the
 	 * pci_controller structure so we enable it for AGP and not for
 	 * HT childs.
 	 * We hard code the address because of the different size of
@@ -1007,7 +1007,7 @@ void __init pmac_find_bridges(void)
 	 * some offset between bus number and domains for now when we
 	 * assign all busses should help for now
 	 */
-	if (pci_assign_all_busses)
+	if (pci_assign_all_buses)
 		pcibios_assign_bus_offset = 0x10;
 
 }
diff --git a/arch/ppc/kernel/pci.c b/arch/ppc/kernel/pci.c
index 163276be7cc54fce185ec9de7d1e936ea813fce2..ad4ef2aaa6ab9c4c2f070e10d5fa12971013bced 100644
--- a/arch/ppc/kernel/pci.c
+++ b/arch/ppc/kernel/pci.c
@@ -54,7 +54,7 @@ static u8* pci_to_OF_bus_map;
 /* By default, we don't re-assign bus numbers. We do this only on
  * some pmacs
  */
-int pci_assign_all_busses;
+int pci_assign_all_buses;
 
 struct pci_controller* hose_head;
 struct pci_controller** hose_tail = &hose_head;
@@ -827,7 +827,7 @@ EXPORT_SYMBOL(pci_device_to_OF_node);
  * PCI bus numbers have not yet been assigned, and you need to
  * issue PCI config cycles to an OF device.
  * It could also be used to "fix" RTAS config cycles if you want
- * to set pci_assign_all_busses to 1 and still use RTAS for PCI
+ * to set pci_assign_all_buses to 1 and still use RTAS for PCI
  * config cycles.
  */
 struct pci_controller*
@@ -1270,12 +1270,12 @@ pcibios_init(void)
 
 	/* Scan all of the recorded PCI controllers.  */
 	for (next_busno = 0, hose = hose_head; hose; hose = hose->next) {
-		if (pci_assign_all_busses)
+		if (pci_assign_all_buses)
 			hose->first_busno = next_busno;
 		hose->last_busno = 0xff;
 		bus = pci_scan_bus(hose->first_busno, hose->ops, hose);
 		hose->last_busno = bus->subordinate;
-		if (pci_assign_all_busses || next_busno <= hose->last_busno)
+		if (pci_assign_all_buses || next_busno <= hose->last_busno)
 			next_busno = hose->last_busno + pcibios_assign_bus_offset;
 	}
 	pci_bus_count = next_busno;
@@ -1284,7 +1284,7 @@ pcibios_init(void)
 	 * numbers vs. kernel bus numbers since we may have to
 	 * remap them.
 	 */
-	if (pci_assign_all_busses && have_of)
+	if (pci_assign_all_buses && have_of)
 		pcibios_make_OF_bus_map();
 
 	/* Do machine dependent PCI interrupt routing */
diff --git a/arch/ppc/platforms/chrp_pci.c b/arch/ppc/platforms/chrp_pci.c
index f12192cc4d425d9bdd0486f507e784e6b4592f92..bd047aac01b1fbd5945eb6cf38201a943f605c87 100644
--- a/arch/ppc/platforms/chrp_pci.c
+++ b/arch/ppc/platforms/chrp_pci.c
@@ -203,7 +203,7 @@ static void __init setup_peg2(struct pci_controller *hose, struct device_node *d
 		printk ("RTAS supporting Pegasos OF not found, please upgrade"
 			" your firmware\n");
 	}
-	pci_assign_all_busses = 1;
+	pci_assign_all_buses = 1;
 }
 
 void __init
diff --git a/arch/ppc/platforms/pmac_pci.c b/arch/ppc/platforms/pmac_pci.c
index 1dc638f722393a626072da2797d4c2b8bf9d3d40..786295b6ddd0047d00485b55c16b98a56d482a7a 100644
--- a/arch/ppc/platforms/pmac_pci.c
+++ b/arch/ppc/platforms/pmac_pci.c
@@ -575,7 +575,7 @@ pmac_find_bridges(void)
 	 * some offset between bus number and domains for now when we
 	 * assign all busses should help for now
 	 */
-	if (pci_assign_all_busses)
+	if (pci_assign_all_buses)
 		pcibios_assign_bus_offset = 0x10;
 
 #ifdef CONFIG_POWER4 
@@ -643,7 +643,7 @@ static inline void grackle_set_loop_snoop(struct pci_controller *bp, int enable)
 static int __init
 setup_uninorth(struct pci_controller* hose, struct reg_property* addr)
 {
-	pci_assign_all_busses = 1;
+	pci_assign_all_buses = 1;
 	has_uninorth = 1;
 	hose->ops = &macrisc_pci_ops;
 	hose->cfg_addr = ioremap(addr->address + 0x800000, 0x1000);
@@ -677,7 +677,7 @@ setup_u3_agp(struct pci_controller* hose, struct reg_property* addr)
 {
 	/* On G5, we move AGP up to high bus number so we don't need
 	 * to reassign bus numbers for HT. If we ever have P2P bridges
-	 * on AGP, we'll have to move pci_assign_all_busses to the
+	 * on AGP, we'll have to move pci_assign_all_buses to the
 	 * pci_controller structure so we enable it for AGP and not for
 	 * HT childs.
 	 * We hard code the address because of the different size of
diff --git a/arch/ppc/syslib/m82xx_pci.c b/arch/ppc/syslib/m82xx_pci.c
index 9db58c587b469b0ae6107fb6fb042d78fb473638..5cce123789f13669949f41556222184cbee8ba5b 100644
--- a/arch/ppc/syslib/m82xx_pci.c
+++ b/arch/ppc/syslib/m82xx_pci.c
@@ -302,7 +302,7 @@ pq2ads_setup_pci(struct pci_controller *hose)
 
 void __init pq2_find_bridges(void)
 {
-	extern int pci_assign_all_busses;
+	extern int pci_assign_all_buses;
 	struct pci_controller * hose;
 	int host_bridge;
 
diff --git a/arch/ppc/syslib/mpc52xx_pci.c b/arch/ppc/syslib/mpc52xx_pci.c
index 02edff8befd0c585d6dacaec6a2c2d22fd9b9556..4ac19080eb85f804538ab53e0cff985b997fbf57 100644
--- a/arch/ppc/syslib/mpc52xx_pci.c
+++ b/arch/ppc/syslib/mpc52xx_pci.c
@@ -182,7 +182,7 @@ mpc52xx_find_bridges(void)
 	struct mpc52xx_pci __iomem *pci_regs;
 	struct pci_controller *hose;
 
-	pci_assign_all_busses = 1;
+	pci_assign_all_buses = 1;
 
 	pci_regs = ioremap(MPC52xx_PA(MPC52xx_PCI_OFFSET), MPC52xx_PCI_SIZE);
 	if (!pci_regs)
diff --git a/arch/ppc64/kernel/maple_pci.c b/arch/ppc64/kernel/maple_pci.c
index 0937649f4961b5baf87b02720e36ead384b9e801..b901470f55cc43dfe09d3bd6edc5c2acd8b4d575 100644
--- a/arch/ppc64/kernel/maple_pci.c
+++ b/arch/ppc64/kernel/maple_pci.c
@@ -275,7 +275,7 @@ static void __init setup_u3_agp(struct pci_controller* hose)
 {
 	/* On G5, we move AGP up to high bus number so we don't need
 	 * to reassign bus numbers for HT. If we ever have P2P bridges
-	 * on AGP, we'll have to move pci_assign_all_busses to the
+	 * on AGP, we'll have to move pci_assign_all_buses to the
 	 * pci_controller structure so we enable it for AGP and not for
 	 * HT childs.
 	 * We hard code the address because of the different size of
diff --git a/arch/ppc64/kernel/pmac_pci.c b/arch/ppc64/kernel/pmac_pci.c
index f139fc0341997feec3dc4c820975b9512ed29994..7a81c827594025571fec92c7f4354f104f4a101e 100644
--- a/arch/ppc64/kernel/pmac_pci.c
+++ b/arch/ppc64/kernel/pmac_pci.c
@@ -381,7 +381,7 @@ static void __init setup_u3_agp(struct pci_controller* hose)
 {
 	/* On G5, we move AGP up to high bus number so we don't need
 	 * to reassign bus numbers for HT. If we ever have P2P bridges
-	 * on AGP, we'll have to move pci_assign_all_busses to the
+	 * on AGP, we'll have to move pci_assign_all_buses to the
 	 * pci_controller structure so we enable it for AGP and not for
 	 * HT childs.
 	 * We hard code the address because of the different size of
diff --git a/include/asm-ppc/pci.h b/include/asm-ppc/pci.h
index 9dd06cd40096aad23eec026983b41b7ed11664bd..643740dd727be9f8d38518a99269ec38d2002e88 100644
--- a/include/asm-ppc/pci.h
+++ b/include/asm-ppc/pci.h
@@ -24,9 +24,9 @@ struct pci_dev;
  * Set this to 1 if you want the kernel to re-assign all PCI
  * bus numbers
  */
-extern int pci_assign_all_busses;
+extern int pci_assign_all_buses;
 
-#define pcibios_assign_all_busses()	(pci_assign_all_busses)
+#define pcibios_assign_all_busses()	(pci_assign_all_buses)
 #define pcibios_scan_all_fns(a, b)	0
 
 #define PCIBIOS_MIN_IO		0x1000