From: Ralf Baechle <ralf@linux-mips.org>
Date: Tue, 10 Jul 2007 16:33:00 +0000 (+0100)
Subject: [MIPS] PCI: Make dev pointer argument of pcibios_map_irq const.
X-Git-Tag: firefly_0821_release~28349^2~36
X-Git-Url: http://demsky.eecs.uci.edu/git/?a=commitdiff_plain;h=19df0d1169b3ddcc84933794d1401aaafe2f0000;p=firefly-linux-kernel-4.4.55.git

[MIPS] PCI: Make dev pointer argument of pcibios_map_irq const.

This is to break the code of people who think they are supposed to scribble
into the pci device structure - it's off limits.

Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
---

diff --git a/arch/mips/pci/fixup-atlas.c b/arch/mips/pci/fixup-atlas.c
index c6cd6e9cdfbc..45224fd2c7ba 100644
--- a/arch/mips/pci/fixup-atlas.c
+++ b/arch/mips/pci/fixup-atlas.c
@@ -58,7 +58,7 @@ static char irq_tab[][5] __initdata = {
 	{0,	0,	0,	0,	0 }	/* 21: Unused */
 };
 
-int __init pcibios_map_irq(struct pci_dev *dev, u8 slot, u8 pin)
+int __init pcibios_map_irq(const struct pci_dev *dev, u8 slot, u8 pin)
 {
 	return irq_tab[slot][pin];
 }
diff --git a/arch/mips/pci/fixup-au1000.c b/arch/mips/pci/fixup-au1000.c
index c2f8304fe55b..ca0276c8070a 100644
--- a/arch/mips/pci/fixup-au1000.c
+++ b/arch/mips/pci/fixup-au1000.c
@@ -35,7 +35,7 @@
 
 extern char irq_tab_alchemy[][5];
 
-int __init pcibios_map_irq(struct pci_dev *dev, u8 slot, u8 pin)
+int __init pcibios_map_irq(const struct pci_dev *dev, u8 slot, u8 pin)
 {
 	return irq_tab_alchemy[slot][pin];
 }
diff --git a/arch/mips/pci/fixup-capcella.c b/arch/mips/pci/fixup-capcella.c
index 1e530751936c..1416bca6d1a3 100644
--- a/arch/mips/pci/fixup-capcella.c
+++ b/arch/mips/pci/fixup-capcella.c
@@ -38,7 +38,7 @@ static char irq_tab_capcella[][5] __initdata = {
  [14] = { -1, INTA, INTB, INTC, INTD }
 };
 
-int __init pcibios_map_irq(struct pci_dev *dev, u8 slot, u8 pin)
+int __init pcibios_map_irq(const struct pci_dev *dev, u8 slot, u8 pin)
 {
 	return irq_tab_capcella[slot][pin];
 }
diff --git a/arch/mips/pci/fixup-cobalt.c b/arch/mips/pci/fixup-cobalt.c
index d57ffd7242ca..7fc475f7eae5 100644
--- a/arch/mips/pci/fixup-cobalt.c
+++ b/arch/mips/pci/fixup-cobalt.c
@@ -161,7 +161,7 @@ static char irq_tab_raq2[] __initdata = {
   [COBALT_PCICONF_ETH1]    = COBALT_ETH1_IRQ
 };
 
-int __init pcibios_map_irq(struct pci_dev *dev, u8 slot, u8 pin)
+int __init pcibios_map_irq(const struct pci_dev *dev, u8 slot, u8 pin)
 {
 	if (cobalt_board_id < COBALT_BRD_ID_QUBE2)
 		return irq_tab_qube1[slot];
diff --git a/arch/mips/pci/fixup-emma2rh.c b/arch/mips/pci/fixup-emma2rh.c
index 7abcfd175d43..a2705895561d 100644
--- a/arch/mips/pci/fixup-emma2rh.c
+++ b/arch/mips/pci/fixup-emma2rh.c
@@ -89,7 +89,7 @@ static void __devinit emma2rh_pci_host_fixup(struct pci_dev *dev)
 DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_NEC, PCI_DEVICE_ID_NEC_EMMA2RH,
 			 emma2rh_pci_host_fixup);
 
-int __init pcibios_map_irq(struct pci_dev *dev, u8 slot, u8 pin)
+int __init pcibios_map_irq(const struct pci_dev *dev, u8 slot, u8 pin)
 {
 	return irq_map[slot][pin];
 }
diff --git a/arch/mips/pci/fixup-excite.c b/arch/mips/pci/fixup-excite.c
index 1da696d43f00..cd64d9f177c4 100644
--- a/arch/mips/pci/fixup-excite.c
+++ b/arch/mips/pci/fixup-excite.c
@@ -21,7 +21,7 @@
 #include <linux/pci.h>
 #include <excite.h>
 
-int __init pcibios_map_irq(struct pci_dev *dev, u8 slot, u8 pin)
+int __init pcibios_map_irq(const struct pci_dev *dev, u8 slot, u8 pin)
 {
 	if (pin == 0)
 		return -1;
diff --git a/arch/mips/pci/fixup-ip32.c b/arch/mips/pci/fixup-ip32.c
index 3e66b0aa63ca..190fffd08d3e 100644
--- a/arch/mips/pci/fixup-ip32.c
+++ b/arch/mips/pci/fixup-ip32.c
@@ -39,7 +39,7 @@ static char irq_tab_mace[][5] __initdata = {
  * irqs.  I suppose a device without a pin A will thank us for doing it
  * right if there exists such a broken piece of crap.
  */
-int __init pcibios_map_irq(struct pci_dev *dev, u8 slot, u8 pin)
+int __init pcibios_map_irq(const struct pci_dev *dev, u8 slot, u8 pin)
 {
 	return irq_tab_mace[slot][pin];
 }
diff --git a/arch/mips/pci/fixup-jmr3927.c b/arch/mips/pci/fixup-jmr3927.c
index 73d18503517c..e974394be7bc 100644
--- a/arch/mips/pci/fixup-jmr3927.c
+++ b/arch/mips/pci/fixup-jmr3927.c
@@ -33,7 +33,7 @@
 
 #include <asm/jmr3927/jmr3927.h>
 
-int __init pcibios_map_irq(struct pci_dev *dev, u8 slot, u8 pin)
+int __init pcibios_map_irq(const struct pci_dev *dev, u8 slot, u8 pin)
 {
 	unsigned char irq = pin;
 
diff --git a/arch/mips/pci/fixup-malta.c b/arch/mips/pci/fixup-malta.c
index bf2c41d1e9c5..0f48498bc231 100644
--- a/arch/mips/pci/fixup-malta.c
+++ b/arch/mips/pci/fixup-malta.c
@@ -36,7 +36,7 @@ static char irq_tab[][5] __initdata = {
 	{0,	PCID,	PCIA,	PCIB,	PCIC }	/* 21: PCI Slot 4 */
 };
 
-int __init pcibios_map_irq(struct pci_dev *dev, u8 slot, u8 pin)
+int __init pcibios_map_irq(const struct pci_dev *dev, u8 slot, u8 pin)
 {
 	int virq;
 	virq = irq_tab[slot][pin];
diff --git a/arch/mips/pci/fixup-mpc30x.c b/arch/mips/pci/fixup-mpc30x.c
index 3c9ae41f7517..591159625722 100644
--- a/arch/mips/pci/fixup-mpc30x.c
+++ b/arch/mips/pci/fixup-mpc30x.c
@@ -34,7 +34,7 @@ static const int irq_tab_mpc30x[] __initdata = {
  [29] = MQ200_IRQ,
 };
 
-int __init pcibios_map_irq(struct pci_dev *dev, u8 slot, u8 pin)
+int __init pcibios_map_irq(const struct pci_dev *dev, u8 slot, u8 pin)
 {
 	if (slot == 30)
 		return internal_func_irqs[PCI_FUNC(dev->devfn)];
diff --git a/arch/mips/pci/fixup-ocelot-c.c b/arch/mips/pci/fixup-ocelot-c.c
index d45494807a33..6616648712c2 100644
--- a/arch/mips/pci/fixup-ocelot-c.c
+++ b/arch/mips/pci/fixup-ocelot-c.c
@@ -19,7 +19,7 @@
 #include <linux/kernel.h>
 #include <linux/init.h>
 
-int __init pcibios_map_irq(struct pci_dev *dev, u8 slot, u8 pin)
+int __init pcibios_map_irq(const struct pci_dev *dev, u8 slot, u8 pin)
 {
 	int bus = dev->bus->number;
 
diff --git a/arch/mips/pci/fixup-ocelot3.c b/arch/mips/pci/fixup-ocelot3.c
index ececc03ec620..702f997b8673 100644
--- a/arch/mips/pci/fixup-ocelot3.c
+++ b/arch/mips/pci/fixup-ocelot3.c
@@ -23,7 +23,7 @@ int pcibios_plat_dev_init(struct pci_dev *dev)
 	return 0;
 }
 
-int __init pcibios_map_irq(struct pci_dev *dev, u8 slot, u8 pin)
+int __init pcibios_map_irq(const struct pci_dev *dev, u8 slot, u8 pin)
 {
 	int bus = dev->bus->number;
 
diff --git a/arch/mips/pci/fixup-pnx8550.c b/arch/mips/pci/fixup-pnx8550.c
index 50546dab6689..96857ac63bf5 100644
--- a/arch/mips/pci/fixup-pnx8550.c
+++ b/arch/mips/pci/fixup-pnx8550.c
@@ -45,7 +45,7 @@ void __init pcibios_fixup(void)
 	/* nothing to do here */
 }
 
-int __init pcibios_map_irq(struct pci_dev *dev, u8 slot, u8 pin)
+int __init pcibios_map_irq(const struct pci_dev *dev, u8 slot, u8 pin)
 {
 	return pnx8550_irq_tab[slot][pin];
 }
diff --git a/arch/mips/pci/fixup-rbtx4927.c b/arch/mips/pci/fixup-rbtx4927.c
index ceeb1860895a..3cdbecb8e714 100644
--- a/arch/mips/pci/fixup-rbtx4927.c
+++ b/arch/mips/pci/fixup-rbtx4927.c
@@ -119,7 +119,7 @@ int pci_get_irq(struct pci_dev *dev, int pin)
 	return irq;
 }
 
-int __init pcibios_map_irq(struct pci_dev *dev, u8 slot, u8 pin)
+int __init pcibios_map_irq(const struct pci_dev *dev, u8 slot, u8 pin)
 {
 	unsigned char irq;
 
diff --git a/arch/mips/pci/fixup-sni.c b/arch/mips/pci/fixup-sni.c
index 36e5fb1b3786..a45bedd17233 100644
--- a/arch/mips/pci/fixup-sni.c
+++ b/arch/mips/pci/fixup-sni.c
@@ -120,7 +120,7 @@ static inline int is_rm300_revd(void)
 	return (csmsr & 0xa0) == 0x20;
 }
 
-int __init pcibios_map_irq(struct pci_dev *dev, u8 slot, u8 pin)
+int __init pcibios_map_irq(const struct pci_dev *dev, u8 slot, u8 pin)
 {
 	switch (sni_brd_type) {
 	case SNI_BRD_PCI_TOWER:
diff --git a/arch/mips/pci/fixup-tb0219.c b/arch/mips/pci/fixup-tb0219.c
index 734f2b71e164..720a2b720c5c 100644
--- a/arch/mips/pci/fixup-tb0219.c
+++ b/arch/mips/pci/fixup-tb0219.c
@@ -23,7 +23,7 @@
 
 #include <asm/vr41xx/tb0219.h>
 
-int __init pcibios_map_irq(struct pci_dev *dev, u8 slot, u8 pin)
+int __init pcibios_map_irq(const struct pci_dev *dev, u8 slot, u8 pin)
 {
 	int irq = -1;
 
diff --git a/arch/mips/pci/fixup-tb0226.c b/arch/mips/pci/fixup-tb0226.c
index c9e7cb4361a1..e3eedf4bf9bd 100644
--- a/arch/mips/pci/fixup-tb0226.c
+++ b/arch/mips/pci/fixup-tb0226.c
@@ -23,7 +23,7 @@
 #include <asm/vr41xx/giu.h>
 #include <asm/vr41xx/tb0226.h>
 
-int __init pcibios_map_irq(struct pci_dev *dev, u8 slot, u8 pin)
+int __init pcibios_map_irq(const struct pci_dev *dev, u8 slot, u8 pin)
 {
 	int irq = -1;
 
diff --git a/arch/mips/pci/fixup-tb0287.c b/arch/mips/pci/fixup-tb0287.c
index fbe6bcb28199..267ab3dc3d42 100644
--- a/arch/mips/pci/fixup-tb0287.c
+++ b/arch/mips/pci/fixup-tb0287.c
@@ -22,7 +22,7 @@
 
 #include <asm/vr41xx/tb0287.h>
 
-int __init pcibios_map_irq(struct pci_dev *dev, u8 slot, u8 pin)
+int __init pcibios_map_irq(const struct pci_dev *dev, u8 slot, u8 pin)
 {
 	unsigned char bus;
 	int irq = -1;
diff --git a/arch/mips/pci/fixup-tx4938.c b/arch/mips/pci/fixup-tx4938.c
index f455520ada88..2485f47dfe6f 100644
--- a/arch/mips/pci/fixup-tx4938.c
+++ b/arch/mips/pci/fixup-tx4938.c
@@ -69,7 +69,7 @@ int pci_get_irq(struct pci_dev *dev, int pin)
 	return irq;
 }
 
-int __init pcibios_map_irq(struct pci_dev *dev, u8 slot, u8 pin)
+int __init pcibios_map_irq(const struct pci_dev *dev, u8 slot, u8 pin)
 {
 	unsigned char irq = 0;
 
diff --git a/arch/mips/pci/fixup-vr4133.c b/arch/mips/pci/fixup-vr4133.c
index a8d9d22b13df..de5e5f6bbf4c 100644
--- a/arch/mips/pci/fixup-vr4133.c
+++ b/arch/mips/pci/fixup-vr4133.c
@@ -169,7 +169,7 @@ void i8259_init(void)
 }
 #endif
 
-int __init pcibios_map_irq(struct pci_dev *dev, u8 slot, u8 pin)
+int __init pcibios_map_irq(const struct pci_dev *dev, u8 slot, u8 pin)
 {
 	extern int pci_probe_only;
 	pci_probe_only = 1;
diff --git a/arch/mips/pci/fixup-wrppmc.c b/arch/mips/pci/fixup-wrppmc.c
index 3357c1300bb1..3d277549d5df 100644
--- a/arch/mips/pci/fixup-wrppmc.c
+++ b/arch/mips/pci/fixup-wrppmc.c
@@ -25,7 +25,7 @@ static char pci_irq_tab[PCI_SLOT_MAXNR][5] __initdata = {
 	[6] = {0, WRPPMC_PCI_INTA_IRQ, 0, 0, 0},
 };
 
-int __init pcibios_map_irq(struct pci_dev *dev, u8 slot, u8 pin)
+int __init pcibios_map_irq(const struct pci_dev *dev, u8 slot, u8 pin)
 {
 	return pci_irq_tab[slot][pin];
 }
diff --git a/arch/mips/pci/fixup-yosemite.c b/arch/mips/pci/fixup-yosemite.c
index 81d77a587a51..fdafb13a793b 100644
--- a/arch/mips/pci/fixup-yosemite.c
+++ b/arch/mips/pci/fixup-yosemite.c
@@ -26,7 +26,7 @@
 #include <linux/init.h>
 #include <linux/pci.h>
 
-int __init pcibios_map_irq(struct pci_dev *dev, u8 slot, u8 pin)
+int __init pcibios_map_irq(const struct pci_dev *dev, u8 slot, u8 pin)
 {
 	if (pin == 0)
 		return -1;
diff --git a/arch/mips/pci/pci-bcm1480.c b/arch/mips/pci/pci-bcm1480.c
index d7b9e1349f6d..2b4e30c7d105 100644
--- a/arch/mips/pci/pci-bcm1480.c
+++ b/arch/mips/pci/pci-bcm1480.c
@@ -74,8 +74,9 @@ static inline void WRITECFG32(u32 addr, u32 data)
 	*(u32 *)(cfg_space + (addr & ~3)) = data;
 }
 
-int pcibios_map_irq(struct pci_dev *dev, u8 slot, u8 pin)
+int pcibios_map_irq(const struct pci_dev *dev, u8 slot, u8 pin)
 {
+	This is b0rked.
 	return dev->irq;
 }
 
diff --git a/arch/mips/pci/pci-ddb5477.c b/arch/mips/pci/pci-ddb5477.c
index d071bc375b11..7363e1877842 100644
--- a/arch/mips/pci/pci-ddb5477.c
+++ b/arch/mips/pci/pci-ddb5477.c
@@ -131,7 +131,7 @@ static unsigned char rockhopperII_irq_map[MAX_SLOT_NUM] = {
 	/* SLOT: 20, AD:31 */ VRC5477_IRQ_IOPCI_INTA, /* vrc5477 usb host */
 };
 
-int __init pcibios_map_irq(struct pci_dev *dev, u8 slot, u8 pin)
+int __init pcibios_map_irq(const struct pci_dev *dev, u8 slot, u8 pin)
 {
 	int slot_num;
 	unsigned char *slot_irq_map;
diff --git a/arch/mips/pci/pci-ip27.c b/arch/mips/pci/pci-ip27.c
index 405ce0152739..a322543ac34e 100644
--- a/arch/mips/pci/pci-ip27.c
+++ b/arch/mips/pci/pci-ip27.c
@@ -134,7 +134,7 @@ int __init bridge_probe(nasid_t nasid, int widget_id, int masterwid)
  * A given PCI device, in general, should be able to intr any of the cpus
  * on any one of the hubs connected to its xbow.
  */
-int __devinit pcibios_map_irq(struct pci_dev *dev, u8 slot, u8 pin)
+int __devinit pcibios_map_irq(const struct pci_dev *dev, u8 slot, u8 pin)
 {
 	struct bridge_controller *bc = BRIDGE_CONTROLLER(dev->bus);
 	int irq = bc->pci_int[slot];
diff --git a/arch/mips/pci/pci-lasat.c b/arch/mips/pci/pci-lasat.c
index 985784a3e6f8..c5045ff3ad8c 100644
--- a/arch/mips/pci/pci-lasat.c
+++ b/arch/mips/pci/pci-lasat.c
@@ -64,7 +64,7 @@ arch_initcall(lasat_pci_setup);
 #define LASATINT_PCIC   7
 #define LASATINT_PCID   8
 
-int __init pcibios_map_irq(struct pci_dev *dev, u8 slot, u8 pin)
+int __init pcibios_map_irq(const struct pci_dev *dev, u8 slot, u8 pin)
 {
 	switch (slot) {
 	case 1:
diff --git a/arch/mips/pci/pci-sb1250.c b/arch/mips/pci/pci-sb1250.c
index 75c1246ced5f..c1ac6493155e 100644
--- a/arch/mips/pci/pci-sb1250.c
+++ b/arch/mips/pci/pci-sb1250.c
@@ -84,7 +84,7 @@ static inline void WRITECFG32(u32 addr, u32 data)
 	*(u32 *) (cfg_space + (addr & ~3)) = data;
 }
 
-int pcibios_map_irq(struct pci_dev *dev, u8 slot, u8 pin)
+int pcibios_map_irq(const struct pci_dev *dev, u8 slot, u8 pin)
 {
 	return dev->irq;
 }
diff --git a/include/asm-mips/pci.h b/include/asm-mips/pci.h
index 3eea3ba0fca5..a59d54749eef 100644
--- a/include/asm-mips/pci.h
+++ b/include/asm-mips/pci.h
@@ -56,7 +56,7 @@ extern void register_pci_controller(struct pci_controller *hose);
 /*
  * board supplied pci irq fixup routine
  */
-extern int pcibios_map_irq(struct pci_dev *dev, u8 slot, u8 pin);
+extern int pcibios_map_irq(const struct pci_dev *dev, u8 slot, u8 pin);
 
 
 /* Can be used to override the logic in pci_scan_bus for skipping