16 files changed, 72 insertions, 73 deletions

diff --git a/arch/powerpc/platforms/pseries/eeh.c b/arch/powerpc/platforms/pseries/eeh.c
index 32eaddfa5470..5a23ce5e16ff 100644
--- a/arch/powerpc/platforms/pseries/eeh.c
+++ b/arch/powerpc/platforms/pseries/eeh.c
@@ -691,11 +691,11 @@ static void *early_enable_eeh(struct device_node *dn, void *data)
 {
         struct eeh_early_enable_info *info = data;
         int ret;
-        char *status = get_property(dn, "status", NULL);
-        u32 *class_code = (u32 *)get_property(dn, "class-code", NULL);
-        u32 *vendor_id = (u32 *)get_property(dn, "vendor-id", NULL);
-        u32 *device_id = (u32 *)get_property(dn, "device-id", NULL);
-        u32 *regs;
+        const char *status = get_property(dn, "status", NULL);
+        const u32 *class_code = get_property(dn, "class-code", NULL);
+        const u32 *vendor_id = get_property(dn, "vendor-id", NULL);
+        const u32 *device_id = get_property(dn, "device-id", NULL);
+        const u32 *regs;
         int enable;
         struct pci_dn *pdn = PCI_DN(dn);
 
@@ -737,7 +737,7 @@ static void *early_enable_eeh(struct device_node *dn, void *data)
 
         /* Ok... see if this device supports EEH.  Some do, some don't,
          * and the only way to find out is to check each and every one. */
-        regs = (u32 *)get_property(dn, "reg", NULL);
+        regs = get_property(dn, "reg", NULL);
         if (regs) {
                 /* First register entry is addr (00BBSS00)  */
                 /* Try to enable eeh */
diff --git a/arch/powerpc/platforms/pseries/eeh_driver.c b/arch/powerpc/platforms/pseries/eeh_driver.c
index aaad2c0afcbf..3269d2cd428b 100644
--- a/arch/powerpc/platforms/pseries/eeh_driver.c
+++ b/arch/powerpc/platforms/pseries/eeh_driver.c
@@ -268,14 +268,14 @@ struct pci_dn * handle_eeh_events (struct eeh_event *event)
 
         if (!frozen_dn) {
 
-                location = (char *) get_property(event->dn, "ibm,loc-code", NULL);
+                location = get_property(event->dn, "ibm,loc-code", NULL);
                 location = location ? location : "unknown";
                 printk(KERN_ERR "EEH: Error: Cannot find partition endpoint "
                                 "for location=%s pci addr=%s\n",
                         location, pci_name(event->dev));
                 return NULL;
         }
-        location = (char *) get_property(frozen_dn, "ibm,loc-code", NULL);
+        location = get_property(frozen_dn, "ibm,loc-code", NULL);
         location = location ? location : "unknown";
 
         /* There are two different styles for coming up with the PE.
diff --git a/arch/powerpc/platforms/pseries/eeh_event.c b/arch/powerpc/platforms/pseries/eeh_event.c
index 45ccc687e57c..137077451316 100644
--- a/arch/powerpc/platforms/pseries/eeh_event.c
+++ b/arch/powerpc/platforms/pseries/eeh_event.c
@@ -124,11 +124,11 @@ int eeh_send_failure_event (struct device_node *dn,
 {
         unsigned long flags;
         struct eeh_event *event;
-        char *location;
+        const char *location;
 
         if (!mem_init_done) {
                 printk(KERN_ERR "EEH: event during early boot not handled\n");
-                location = (char *) get_property(dn, "ibm,loc-code", NULL);
+                location = get_property(dn, "ibm,loc-code", NULL);
                 printk(KERN_ERR "EEH: device node = %s\n", dn->full_name);
                 printk(KERN_ERR "EEH: PCI location = %s\n", location);
                 return 1;
diff --git a/arch/powerpc/platforms/pseries/firmware.c b/arch/powerpc/platforms/pseries/firmware.c
index c01d8f0cbe6d..1c7b2baa5f73 100644
--- a/arch/powerpc/platforms/pseries/firmware.c
+++ b/arch/powerpc/platforms/pseries/firmware.c
@@ -68,7 +68,7 @@ firmware_features_table[FIRMWARE_MAX_FEATURES] = {
 void __init fw_feature_init(void)
 {
         struct device_node *dn;
-        char *hypertas, *s;
+        const char *hypertas, *s;
         int len, i;
 
         DBG(" -> fw_feature_init()\n");
diff --git a/arch/powerpc/platforms/pseries/iommu.c b/arch/powerpc/platforms/pseries/iommu.c
index d67af2c65754..bbf2e34dc358 100644
--- a/arch/powerpc/platforms/pseries/iommu.c
+++ b/arch/powerpc/platforms/pseries/iommu.c
@@ -267,13 +267,12 @@ static void iommu_table_setparms(struct pci_controller *phb,
                                  struct iommu_table *tbl)
 {
         struct device_node *node;
-        unsigned long *basep;
-        unsigned int *sizep;
+        const unsigned long *basep, *sizep;
 
         node = (struct device_node *)phb->arch_data;
 
-        basep = (unsigned long *)get_property(node, "linux,tce-base", NULL);
-        sizep = (unsigned int *)get_property(node, "linux,tce-size", NULL);
+        basep = get_property(node, "linux,tce-base", NULL);
+        sizep = get_property(node, "linux,tce-size", NULL);
         if (basep == NULL || sizep == NULL) {
                 printk(KERN_ERR "PCI_DMA: iommu_table_setparms: %s has "
                                 "missing tce entries !\n", dn->full_name);
@@ -315,7 +314,7 @@ static void iommu_table_setparms(struct pci_controller *phb,
 static void iommu_table_setparms_lpar(struct pci_controller *phb,
                                       struct device_node *dn,
                                       struct iommu_table *tbl,
-                                      unsigned char *dma_window)
+                                      const void *dma_window)
 {
         unsigned long offset, size;
 
@@ -415,7 +414,7 @@ static void iommu_bus_setup_pSeriesLP(struct pci_bus *bus)
         struct iommu_table *tbl;
         struct device_node *dn, *pdn;
         struct pci_dn *ppci;
-        unsigned char *dma_window = NULL;
+        const void *dma_window = NULL;
 
         DBG("iommu_bus_setup_pSeriesLP, bus %p, bus->self %p\n", bus, bus->self);
 
@@ -519,7 +518,7 @@ static void iommu_dev_setup_pSeriesLP(struct pci_dev *dev)
 {
         struct device_node *pdn, *dn;
         struct iommu_table *tbl;
-        unsigned char *dma_window = NULL;
+        const void *dma_window = NULL;
         struct pci_dn *pci;
 
         DBG("iommu_dev_setup_pSeriesLP, dev %p (%s)\n", dev, pci_name(dev));
diff --git a/arch/powerpc/platforms/pseries/lpar.c b/arch/powerpc/platforms/pseries/lpar.c
index 3aeb40699042..4cb7ff227f72 100644
--- a/arch/powerpc/platforms/pseries/lpar.c
+++ b/arch/powerpc/platforms/pseries/lpar.c
@@ -204,20 +204,20 @@ void __init udbg_init_debug_lpar(void)
 void __init find_udbg_vterm(void)
 {
         struct device_node *stdout_node;
-        u32 *termno;
-        char *name;
+        const u32 *termno;
+        const char *name;
         int add_console;
 
         /* find the boot console from /chosen/stdout */
         if (!of_chosen)
                 return;
-        name = (char *)get_property(of_chosen, "linux,stdout-path", NULL);
+        name = get_property(of_chosen, "linux,stdout-path", NULL);
         if (name == NULL)
                 return;
         stdout_node = of_find_node_by_path(name);
         if (!stdout_node)
                 return;
-        name = (char *)get_property(stdout_node, "name", NULL);
+        name = get_property(stdout_node, "name", NULL);
         if (!name) {
                 printk(KERN_WARNING "stdout node missing 'name' property!\n");
                 goto out;
@@ -228,7 +228,7 @@ void __init find_udbg_vterm(void)
         /* Check if it's a virtual terminal */
         if (strncmp(name, "vty", 3) != 0)
                 goto out;
-        termno = (u32 *)get_property(stdout_node, "reg", NULL);
+        termno = get_property(stdout_node, "reg", NULL);
         if (termno == NULL)
                 goto out;
         vtermno = termno[0];
diff --git a/arch/powerpc/platforms/pseries/nvram.c b/arch/powerpc/platforms/pseries/nvram.c
index 18abfb1f4e24..64163cecdf93 100644
--- a/arch/powerpc/platforms/pseries/nvram.c
+++ b/arch/powerpc/platforms/pseries/nvram.c
@@ -123,13 +123,14 @@ static ssize_t pSeries_nvram_get_size(void)
 int __init pSeries_nvram_init(void)
 {
         struct device_node *nvram;
-        unsigned int *nbytes_p, proplen;
+        const unsigned int *nbytes_p;
+        unsigned int proplen;
 
         nvram = of_find_node_by_type(NULL, "nvram");
         if (nvram == NULL)
                 return -ENODEV;
 
-        nbytes_p = (unsigned int *)get_property(nvram, "#bytes", &proplen);
+        nbytes_p = get_property(nvram, "#bytes", &proplen);
         if (nbytes_p == NULL || proplen != sizeof(unsigned int))
                 return -EIO;
 
diff --git a/arch/powerpc/platforms/pseries/pci.c b/arch/powerpc/platforms/pseries/pci.c
index e97e67f5e079..410a6bcc4ca0 100644
--- a/arch/powerpc/platforms/pseries/pci.c
+++ b/arch/powerpc/platforms/pseries/pci.c
@@ -60,7 +60,7 @@ DECLARE_PCI_FIXUP_HEADER(PCI_ANY_ID, PCI_ANY_ID, pcibios_name_device);
 static void __devinit check_s7a(void)
 {
         struct device_node *root;
-        char *model;
+        const char *model;
 
         s7a_workaround = 0;
         root = of_find_node_by_path("/");
diff --git a/arch/powerpc/platforms/pseries/ras.c b/arch/powerpc/platforms/pseries/ras.c
index 9df783088b61..0e6339ee45a1 100644
--- a/arch/powerpc/platforms/pseries/ras.c
+++ b/arch/powerpc/platforms/pseries/ras.c
@@ -79,7 +79,7 @@ static void request_ras_irqs(struct device_node *np,
 {
         int i, index, count = 0;
         struct of_irq oirq;
-        u32 *opicprop;
+        const u32 *opicprop;
         unsigned int opicplen;
         unsigned int virqs[16];
 
@@ -87,7 +87,7 @@ static void request_ras_irqs(struct device_node *np,
          * map those interrupts using the default interrupt host and default
          * trigger
          */
-        opicprop = (u32 *)get_property(np, "open-pic-interrupt", &opicplen);
+        opicprop = get_property(np, "open-pic-interrupt", &opicplen);
         if (opicprop) {
                 opicplen /= sizeof(u32);
                 for (i = 0; i < opicplen; i++) {
diff --git a/arch/powerpc/platforms/pseries/rtasd.c b/arch/powerpc/platforms/pseries/rtasd.c
index 2e4e04042d85..8ca2612221d6 100644
--- a/arch/powerpc/platforms/pseries/rtasd.c
+++ b/arch/powerpc/platforms/pseries/rtasd.c
@@ -359,11 +359,11 @@ static int enable_surveillance(int timeout)
 static int get_eventscan_parms(void)
 {
         struct device_node *node;
-        int *ip;
+        const int *ip;
 
         node = of_find_node_by_path("/rtas");
 
-        ip = (int *)get_property(node, "rtas-event-scan-rate", NULL);
+        ip = get_property(node, "rtas-event-scan-rate", NULL);
         if (ip == NULL) {
                 printk(KERN_ERR "rtasd: no rtas-event-scan-rate\n");
                 of_node_put(node);
diff --git a/arch/powerpc/platforms/pseries/setup.c b/arch/powerpc/platforms/pseries/setup.c
index 54a52437265c..927e0a423b87 100644
--- a/arch/powerpc/platforms/pseries/setup.c
+++ b/arch/powerpc/platforms/pseries/setup.c
@@ -133,9 +133,9 @@ void pseries_8259_cascade(unsigned int irq, struct irq_desc *desc,
 static void __init pseries_mpic_init_IRQ(void)
 {
         struct device_node *np, *old, *cascade = NULL;
-        unsigned int *addrp;
+        const unsigned int *addrp;
         unsigned long intack = 0;
-        unsigned int *opprop;
+        const unsigned int *opprop;
         unsigned long openpic_addr = 0;
         unsigned int cascade_irq;
         int naddr, n, i, opplen;
@@ -143,7 +143,7 @@ static void __init pseries_mpic_init_IRQ(void)
 
         np = of_find_node_by_path("/");
         naddr = prom_n_addr_cells(np);
-        opprop = (unsigned int *) get_property(np, "platform-open-pic", &opplen);
+        opprop = get_property(np, "platform-open-pic", &opplen);
         if (opprop != 0) {
                 openpic_addr = of_read_number(opprop, naddr);
                 printk(KERN_DEBUG "OpenPIC addr: %lx\n", openpic_addr);
@@ -192,7 +192,7 @@ static void __init pseries_mpic_init_IRQ(void)
                         break;
                 if (strcmp(np->name, "pci") != 0)
                         continue;
-                addrp = (u32 *)get_property(np, "8259-interrupt-acknowledge",
+                addrp = get_property(np, "8259-interrupt-acknowledge",
                                             NULL);
                 if (addrp == NULL)
                         continue;
@@ -249,11 +249,11 @@ static void pseries_kexec_cpu_down_xics(int crash_shutdown, int secondary)
 static void __init pseries_discover_pic(void)
 {
         struct device_node *np;
-        char *typep;
+        const char *typep;
 
         for (np = NULL; (np = of_find_node_by_name(np,
                                                    "interrupt-controller"));) {
-                typep = (char *)get_property(np, "compatible", NULL);
+                typep = get_property(np, "compatible", NULL);
                 if (strstr(typep, "open-pic")) {
                         pSeries_mpic_node = of_node_get(np);
                         ppc_md.init_IRQ       = pseries_mpic_init_IRQ;
diff --git a/arch/powerpc/platforms/pseries/smp.c b/arch/powerpc/platforms/pseries/smp.c
index ac61098ff401..f39dad8b99e0 100644
--- a/arch/powerpc/platforms/pseries/smp.c
+++ b/arch/powerpc/platforms/pseries/smp.c
@@ -145,9 +145,9 @@ static int pSeries_add_processor(struct device_node *np)
         unsigned int cpu;
         cpumask_t candidate_map, tmp = CPU_MASK_NONE;
         int err = -ENOSPC, len, nthreads, i;
-        u32 *intserv;
+        const u32 *intserv;
 
-        intserv = (u32 *)get_property(np, "ibm,ppc-interrupt-server#s", &len);
+        intserv = get_property(np, "ibm,ppc-interrupt-server#s", &len);
         if (!intserv)
                 return 0;
 
@@ -205,9 +205,9 @@ static void pSeries_remove_processor(struct device_node *np)
 {
         unsigned int cpu;
         int len, nthreads, i;
-        u32 *intserv;
+        const u32 *intserv;
 
-        intserv = (u32 *)get_property(np, "ibm,ppc-interrupt-server#s", &len);
+        intserv = get_property(np, "ibm,ppc-interrupt-server#s", &len);
         if (!intserv)
                 return;
 
diff --git a/arch/powerpc/platforms/pseries/xics.c b/arch/powerpc/platforms/pseries/xics.c
index 716972aa9777..756421049441 100644
--- a/arch/powerpc/platforms/pseries/xics.c
+++ b/arch/powerpc/platforms/pseries/xics.c
@@ -604,14 +604,14 @@ static void __init xics_init_one_node(struct device_node *np,
                                       unsigned int *indx)
 {
         unsigned int ilen;
-        u32 *ireg;
+        const u32 *ireg;
 
         /* This code does the theorically broken assumption that the interrupt
          * server numbers are the same as the hard CPU numbers.
          * This happens to be the case so far but we are playing with fire...
          * should be fixed one of these days. -BenH.
          */
-        ireg = (u32 *)get_property(np, "ibm,interrupt-server-ranges", NULL);
+        ireg = get_property(np, "ibm,interrupt-server-ranges", NULL);
 
         /* Do that ever happen ? we'll know soon enough... but even good'old
          * f80 does have that property ..
@@ -623,7 +623,7 @@ static void __init xics_init_one_node(struct device_node *np,
                  */
                 *indx = *ireg;
         }
-        ireg = (u32 *)get_property(np, "reg", &ilen);
+        ireg = get_property(np, "reg", &ilen);
         if (!ireg)
                 panic("xics_init_IRQ: can't find interrupt reg property");
 
@@ -649,7 +649,7 @@ static void __init xics_setup_8259_cascade(void)
 {
         struct device_node *np, *old, *found = NULL;
         int cascade, naddr;
-        u32 *addrp;
+        const u32 *addrp;
         unsigned long intack = 0;
 
         for_each_node_by_type(np, "interrupt-controller")
@@ -675,7 +675,7 @@ static void __init xics_setup_8259_cascade(void)
                         break;
                 if (strcmp(np->name, "pci") != 0)
                         continue;
-                addrp = (u32 *)get_property(np, "8259-interrupt-acknowledge", NULL);
+                addrp = get_property(np, "8259-interrupt-acknowledge", NULL);
                 if (addrp == NULL)
                         continue;
                 naddr = prom_n_addr_cells(np);
@@ -694,7 +694,8 @@ void __init xics_init_IRQ(void)
 {
         int i;
         struct device_node *np;
-        u32 *ireg, ilen, indx = 0;
+        u32 ilen, indx = 0;
+        const u32 *ireg;
         int found = 0;
 
         ppc64_boot_msg(0x20, "XICS Init");
@@ -719,18 +720,17 @@ void __init xics_init_IRQ(void)
         for (np = of_find_node_by_type(NULL, "cpu");
              np;
              np = of_find_node_by_type(np, "cpu")) {
-                ireg = (u32 *)get_property(np, "reg", &ilen);
+                ireg = get_property(np, "reg", &ilen);
                 if (ireg && ireg[0] == get_hard_smp_processor_id(boot_cpuid)) {
-                        ireg = (u32 *)get_property(np,
-                                                  "ibm,ppc-interrupt-gserver#s",
-                                                   &ilen);
+                        ireg = get_property(np,
+                                        "ibm,ppc-interrupt-gserver#s", &ilen);
                         i = ilen / sizeof(int);
                         if (ireg && i > 0) {
                                 default_server = ireg[0];
                                 /* take last element */
                                 default_distrib_server = ireg[i-1];
                         }
-                        ireg = (u32 *)get_property(np,
+                        ireg = get_property(np,
                                         "ibm,interrupt-server#-size", NULL);
                         if (ireg)
                                 interrupt_server_size = *ireg;
diff --git a/drivers/char/hvc_vio.c b/drivers/char/hvc_vio.c
index 651e5d25f58b..cc95941148fb 100644
--- a/drivers/char/hvc_vio.c
+++ b/drivers/char/hvc_vio.c
@@ -141,7 +141,7 @@ static int hvc_find_vtys(void)
 
         for (vty = of_find_node_by_name(NULL, "vty"); vty != NULL;
                         vty = of_find_node_by_name(vty, "vty")) {
-                uint32_t *vtermno;
+                const uint32_t *vtermno;
 
                 /* We have statically defined space for only a certain number
                  * of console adapters.
@@ -149,7 +149,7 @@ static int hvc_find_vtys(void)
                 if (num_found >= MAX_NR_HVC_CONSOLES)
                         break;
 
-                vtermno = (uint32_t *)get_property(vty, "reg", NULL);
+                vtermno = get_property(vty, "reg", NULL);
                 if (!vtermno)
                         continue;
 
diff --git a/drivers/char/hvsi.c b/drivers/char/hvsi.c
index 56612a2dca6b..542de0e51f35 100644
--- a/drivers/char/hvsi.c
+++ b/drivers/char/hvsi.c
@@ -1276,11 +1276,10 @@ static int __init hvsi_console_init(void)
                         vty != NULL;
                         vty = of_find_compatible_node(vty, "serial", "hvterm-protocol")) {
                 struct hvsi_struct *hp;
-                uint32_t *vtermno;
-                uint32_t *irq;
+                const uint32_t *vtermno, *irq;
 
-                vtermno = (uint32_t *)get_property(vty, "reg", NULL);
-                irq = (uint32_t *)get_property(vty, "interrupts", NULL);
+                vtermno = get_property(vty, "reg", NULL);
+                irq = get_property(vty, "interrupts", NULL);
                 if (!vtermno || !irq)
                         continue;
 
diff --git a/drivers/pci/hotplug/rpaphp_core.c b/drivers/pci/hotplug/rpaphp_core.c
index 076bd6dcafae..7288a3eccfb3 100644
--- a/drivers/pci/hotplug/rpaphp_core.c
+++ b/drivers/pci/hotplug/rpaphp_core.c
@@ -176,16 +176,16 @@ static int get_max_bus_speed(struct hotplug_slot *hotplug_slot, enum pci_bus_spe
         return 0;
 }
 
-static int get_children_props(struct device_node *dn, int **drc_indexes,
-                int **drc_names, int **drc_types, int **drc_power_domains)
+static int get_children_props(struct device_node *dn, const int **drc_indexes,
+                const int **drc_names, const int **drc_types,
+                const int **drc_power_domains)
 {
-        int *indexes, *names;
-        int *types, *domains;
+        const int *indexes, *names, *types, *domains;
 
-        indexes = (int *) get_property(dn, "ibm,drc-indexes", NULL);
-        names = (int *) get_property(dn, "ibm,drc-names", NULL);
-        types = (int *) get_property(dn, "ibm,drc-types", NULL);
-        domains = (int *) get_property(dn, "ibm,drc-power-domains", NULL);
+        indexes = get_property(dn, "ibm,drc-indexes", NULL);
+        names = get_property(dn, "ibm,drc-names", NULL);
+        types = get_property(dn, "ibm,drc-types", NULL);
+        domains = get_property(dn, "ibm,drc-power-domains", NULL);
 
         if (!indexes || !names || !types || !domains) {
                 /* Slot does not have dynamically-removable children */
@@ -212,13 +212,13 @@ static int get_children_props(struct device_node *dn, int **drc_indexes,
 int rpaphp_get_drc_props(struct device_node *dn, int *drc_index,
                 char **drc_name, char **drc_type, int *drc_power_domain)
 {
-        int *indexes, *names;
-        int *types, *domains;
-        unsigned int *my_index;
+        const int *indexes, *names;
+        const int *types, *domains;
+        const unsigned int *my_index;
         char *name_tmp, *type_tmp;
         int i, rc;
 
-        my_index = (int *) get_property(dn, "ibm,my-drc-index", NULL);
+        my_index = get_property(dn, "ibm,my-drc-index", NULL);
         if (!my_index) {
                 /* Node isn't DLPAR/hotplug capable */
                 return -EINVAL;
@@ -265,10 +265,10 @@ static int is_php_type(char *drc_type)
         return 1;
 }
 
-static int is_php_dn(struct device_node *dn, int **indexes, int **names,
-                int **types, int **power_domains)
+static int is_php_dn(struct device_node *dn, const int **indexes,
+                const int **names, const int **types, const int **power_domains)
 {
-        int *drc_types;
+        const int *drc_types;
         int rc;
 
         rc = get_children_props(dn, indexes, names, &drc_types, power_domains);
@@ -296,7 +296,7 @@ int rpaphp_add_slot(struct device_node *dn)
         struct slot *slot;
         int retval = 0;
         int i;
-        int *indexes, *names, *types, *power_domains;
+        const int *indexes, *names, *types, *power_domains;
         char *name, *type;
 
         dbg("Entry %s: dn->full_name=%s\n", __FUNCTION__, dn->full_name);