x86: constify PCI raw ops structures

As with any other such change, the goal is to prevent inadvertent
writes to these structures (assuming DEBUG_RODATA is enabled), and to
separate data (possibly frequently) written to from such never getting
modified.

Reviewed-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Jan Beulich <jbeulich@novell.com>
Signed-off-by: Jesse Barnes <jbarnes@virtuousgeek.org>
This commit is contained in:
Jan Beulich 2011-09-15 08:58:51 +01:00 committed by Jesse Barnes
parent a94d072b20
commit 72da0b07b1
9 changed files with 15 additions and 15 deletions

View File

@ -99,10 +99,10 @@ struct pci_raw_ops {
int reg, int len, u32 val);
};
extern struct pci_raw_ops *raw_pci_ops;
extern struct pci_raw_ops *raw_pci_ext_ops;
extern const struct pci_raw_ops *raw_pci_ops;
extern const struct pci_raw_ops *raw_pci_ext_ops;
extern struct pci_raw_ops pci_direct_conf1;
extern const struct pci_raw_ops pci_direct_conf1;
extern bool port_cf9_safe;
/* arch_initcall level */

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@ -304,7 +304,7 @@ static int ce4100_conf_write(unsigned int seg, unsigned int bus,
return pci_direct_conf1.write(seg, bus, devfn, reg, len, value);
}
struct pci_raw_ops ce4100_pci_conf = {
static const struct pci_raw_ops ce4100_pci_conf = {
.read = ce4100_conf_read,
.write = ce4100_conf_write,
};

View File

@ -33,8 +33,8 @@ int noioapicreroute = 1;
int pcibios_last_bus = -1;
unsigned long pirq_table_addr;
struct pci_bus *pci_root_bus;
struct pci_raw_ops *raw_pci_ops;
struct pci_raw_ops *raw_pci_ext_ops;
const struct pci_raw_ops *__read_mostly raw_pci_ops;
const struct pci_raw_ops *__read_mostly raw_pci_ext_ops;
int raw_pci_read(unsigned int domain, unsigned int bus, unsigned int devfn,
int reg, int len, u32 *val)

View File

@ -79,7 +79,7 @@ static int pci_conf1_write(unsigned int seg, unsigned int bus,
#undef PCI_CONF1_ADDRESS
struct pci_raw_ops pci_direct_conf1 = {
const struct pci_raw_ops pci_direct_conf1 = {
.read = pci_conf1_read,
.write = pci_conf1_write,
};
@ -175,7 +175,7 @@ static int pci_conf2_write(unsigned int seg, unsigned int bus,
#undef PCI_CONF2_ADDRESS
struct pci_raw_ops pci_direct_conf2 = {
static const struct pci_raw_ops pci_direct_conf2 = {
.read = pci_conf2_read,
.write = pci_conf2_write,
};
@ -191,7 +191,7 @@ struct pci_raw_ops pci_direct_conf2 = {
* This should be close to trivial, but it isn't, because there are buggy
* chipsets (yes, you guessed it, by Intel and Compaq) that have no class ID.
*/
static int __init pci_sanity_check(struct pci_raw_ops *o)
static int __init pci_sanity_check(const struct pci_raw_ops *o)
{
u32 x = 0;
int year, devfn;

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@ -117,7 +117,7 @@ static int pci_mmcfg_write(unsigned int seg, unsigned int bus,
return 0;
}
static struct pci_raw_ops pci_mmcfg = {
static const struct pci_raw_ops pci_mmcfg = {
.read = pci_mmcfg_read,
.write = pci_mmcfg_write,
};

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@ -81,7 +81,7 @@ static int pci_mmcfg_write(unsigned int seg, unsigned int bus,
return 0;
}
static struct pci_raw_ops pci_mmcfg = {
static const struct pci_raw_ops pci_mmcfg = {
.read = pci_mmcfg_read,
.write = pci_mmcfg_write,
};

View File

@ -110,7 +110,7 @@ static int pci_conf1_mq_write(unsigned int seg, unsigned int bus,
#undef PCI_CONF1_MQ_ADDRESS
static struct pci_raw_ops pci_direct_conf1_mq = {
static const struct pci_raw_ops pci_direct_conf1_mq = {
.read = pci_conf1_mq_read,
.write = pci_conf1_mq_write
};

View File

@ -301,7 +301,7 @@ static int pci_olpc_write(unsigned int seg, unsigned int bus,
return 0;
}
static struct pci_raw_ops pci_olpc_conf = {
static const struct pci_raw_ops pci_olpc_conf = {
.read = pci_olpc_read,
.write = pci_olpc_write,
};

View File

@ -303,7 +303,7 @@ static int pci_bios_write(unsigned int seg, unsigned int bus,
* Function table for BIOS32 access
*/
static struct pci_raw_ops pci_bios_access = {
static const struct pci_raw_ops pci_bios_access = {
.read = pci_bios_read,
.write = pci_bios_write
};
@ -312,7 +312,7 @@ static struct pci_raw_ops pci_bios_access = {
* Try to find PCI BIOS.
*/
static struct pci_raw_ops * __devinit pci_find_bios(void)
static const struct pci_raw_ops * __devinit pci_find_bios(void)
{
union bios32 *check;
unsigned char sum;