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[POWERPC] Use const qualifiers for prom parsing utilites 

The of_bus callbacks map and get_flags can be constified, as they don't
alter the range or addr arguments. of_dump_addr and of_read_addr can
also be constified.

Built for 32- and 64-bit powerpc

Signed-off-by: Jeremy Kerr <jk@ozlabs.org>
Signed-off-by: Paul Mackerras <paulus@samba.org>
This commit is contained in:
Jeremy Kerr 2006-07-04 16:46:44 +10:00 committed by Paul Mackerras
parent 980ffd3258
commit b5a1a9abe1
2 changed files with 13 additions and 11 deletions
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22
arch/powerpc/kernel/prom_parse.c
View File

@ -27,7 +27,7 @@
/* Debug utility */
#ifdef DEBUG
static void of_dump_addr(const char *s, u32 *addr, int na)
static void of_dump_addr(const char *s, const u32 *addr, int na)
{
printk("%s", s);
while(na--)
@ -35,7 +35,7 @@ static void of_dump_addr(const char *s, u32 *addr, int na)
printk("\n");
}
#else
static void of_dump_addr(const char *s, u32 *addr, int na) { }
static void of_dump_addr(const char *s, const u32 *addr, int na) { }
#endif
@ -46,9 +46,10 @@ struct of_bus {
int (*match)(struct device_node *parent);
void (*count_cells)(struct device_node *child,
int *addrc, int *sizec);
u64 (*map)(u32 *addr, u32 *range, int na, int ns, int pna);
u64 (*map)(u32 *addr, const u32 *range,
int na, int ns, int pna);
int (*translate)(u32 *addr, u64 offset, int na);
unsigned int (*get_flags)(u32 *addr);
unsigned int (*get_flags)(const u32 *addr);
};
@ -65,7 +66,8 @@ static void of_bus_default_count_cells(struct device_node *dev,
*sizec = prom_n_size_cells(dev);
}
static u64 of_bus_default_map(u32 *addr, u32 *range, int na, int ns, int pna)
static u64 of_bus_default_map(u32 *addr, const u32 *range,
int na, int ns, int pna)
{
u64 cp, s, da;
@ -93,7 +95,7 @@ static int of_bus_default_translate(u32 *addr, u64 offset, int na)
return 0;
}
static unsigned int of_bus_default_get_flags(u32 *addr)
static unsigned int of_bus_default_get_flags(const u32 *addr)
{
return IORESOURCE_MEM;
}
@ -118,7 +120,7 @@ static void of_bus_pci_count_cells(struct device_node *np,
*sizec = 2;
}
static u64 of_bus_pci_map(u32 *addr, u32 *range, int na, int ns, int pna)
static u64 of_bus_pci_map(u32 *addr, const u32 *range, int na, int ns, int pna)
{
u64 cp, s, da;
@ -143,7 +145,7 @@ static int of_bus_pci_translate(u32 *addr, u64 offset, int na)
return of_bus_default_translate(addr + 1, offset, na - 1);
}
static unsigned int of_bus_pci_get_flags(u32 *addr)
static unsigned int of_bus_pci_get_flags(const u32 *addr)
{
unsigned int flags = 0;
u32 w = addr[0];
@ -178,7 +180,7 @@ static void of_bus_isa_count_cells(struct device_node *child,
*sizec = 1;
}
static u64 of_bus_isa_map(u32 *addr, u32 *range, int na, int ns, int pna)
static u64 of_bus_isa_map(u32 *addr, const u32 *range, int na, int ns, int pna)
{
u64 cp, s, da;
@ -203,7 +205,7 @@ static int of_bus_isa_translate(u32 *addr, u64 offset, int na)
return of_bus_default_translate(addr + 1, offset, na - 1);
}
static unsigned int of_bus_isa_get_flags(u32 *addr)
static unsigned int of_bus_isa_get_flags(const u32 *addr)
{
unsigned int flags = 0;
u32 w = addr[0];

2
include/asm-powerpc/prom.h
View File

@ -198,7 +198,7 @@ extern int release_OF_resource(struct device_node* node, int index);
/* Helper to read a big number */
static inline u64 of_read_number(u32 *cell, int size)
static inline u64 of_read_number(const u32 *cell, int size)
{
u64 r = 0;
while (size--)