[SPARC64]: Kill pbm->pci_first_slot.

Set but never used.
Signed-off-by: David S. Miller <davem@davemloft.net>

arch/sparc64/kernel/of_device.c

@@ -759,12 +759,6 @@ static unsigned int __init pci_irq_swizzle(struct device_node *dp,
 		 * D: 2-bit slot number, derived from PCI device number as
 		 *    (dev - 1) for bus A, or (dev - 2) for bus B
 		 * L: 2-bit line number
-		 *
-		 * Actually, more "portable" way to calculate the funky
-		 * slot number is to subtract pbm->pci_first_slot from the
-		 * device number, and that's exactly what the pre-OF
-		 * sparc64 code did, but we're building this stuff generically
-		 * using the OBP tree, not in the PCI controller layer.
 		 */
 		if (bus & 0x80) {
 			/* PBM-A */

arch/sparc64/kernel/pci_psycho.c

@@ -1085,13 +1085,10 @@ static void psycho_pbm_init(struct pci_controller_info *p,
 	struct property *prop;
 	struct pci_pbm_info *pbm;
 
-	if (is_pbm_a) {
+	if (is_pbm_a)
 		pbm = &p->pbm_A;
-		pbm->pci_first_slot = 1;
-	} else {
+	else
 		pbm = &p->pbm_B;
-		pbm->pci_first_slot = 2;
-	}
 
 	pbm->chip_type = PBM_CHIP_TYPE_PSYCHO;
 	pbm->chip_version = 0;

arch/sparc64/kernel/pci_sabre.c

@@ -995,7 +995,6 @@ static void sabre_pbm_init(struct pci_controller_info *p, struct device_node *dp
 	pbm->chip_type = PBM_CHIP_TYPE_SABRE;
 	pbm->parent = p;
 	pbm->prom_node = dp;
-	pbm->pci_first_slot = 1;
 	pbm->pci_first_busno = p->pci_first_busno;
 	pbm->pci_last_busno = p->pci_last_busno;
 

arch/sparc64/kernel/pci_schizo.c

@@ -1528,7 +1528,6 @@ static void schizo_pbm_init(struct pci_controller_info *p,
 	pbm->portid = portid;
 	pbm->parent = p;
 	pbm->prom_node = dp;
-	pbm->pci_first_slot = 1;
 
 	pbm->chip_type = chip_type;
 	pbm->chip_version = of_getintprop_default(dp, "version#", 0);

arch/sparc64/kernel/pci_sun4v.c

@@ -1256,7 +1256,6 @@ static void pci_sun4v_pbm_init(struct pci_controller_info *p, struct device_node
 
 	pbm->parent = p;
 	pbm->prom_node = dp;
-	pbm->pci_first_slot = 1;
 
 	pbm->devhandle = devhandle;
 

include/asm-sparc64/pbm.h

@@ -197,9 +197,6 @@ struct pci_pbm_info {
 	/* IOMMU state, potentially shared by both PBM segments. */
 	struct pci_iommu		*iommu;
 
-	/* PCI slot mapping. */
-	unsigned int			pci_first_slot;
-
 	/* Now things for the actual PCI bus probes. */
 	unsigned int			pci_first_busno;
 	unsigned int			pci_last_busno;