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authorJiri Kosina <jkosina@suse.cz>2010-04-23 02:08:44 +0200
committerJiri Kosina <jkosina@suse.cz>2010-04-23 02:08:44 +0200
commit6c9468e9eb1252eaefd94ce7f06e1be9b0b641b1 (patch)
tree797676a336b050bfa1ef879377c07e541b9075d6 /drivers/pci/pci.c
parent4cb3ca7cd7e2cae8d1daf5345ec99a1e8502cf3f (diff)
parentc81eddb0e3728661d1585fbc564449c94165cc36 (diff)
downloadlinux-6c9468e9eb1252eaefd94ce7f06e1be9b0b641b1.tar.bz2
Merge branch 'master' into for-next
Diffstat (limited to 'drivers/pci/pci.c')
-rw-r--r--drivers/pci/pci.c45
1 files changed, 21 insertions, 24 deletions
diff --git a/drivers/pci/pci.c b/drivers/pci/pci.c
index ddd55dc927f7..9a3d3309f896 100644
--- a/drivers/pci/pci.c
+++ b/drivers/pci/pci.c
@@ -12,6 +12,7 @@
#include <linux/init.h>
#include <linux/pci.h>
#include <linux/pm.h>
+#include <linux/slab.h>
#include <linux/module.h>
#include <linux/spinlock.h>
#include <linux/string.h>
@@ -2576,18 +2577,17 @@ EXPORT_SYMBOL_GPL(pci_reset_function);
*/
int pcix_get_max_mmrbc(struct pci_dev *dev)
{
- int err, cap;
+ int cap;
u32 stat;
cap = pci_find_capability(dev, PCI_CAP_ID_PCIX);
if (!cap)
return -EINVAL;
- err = pci_read_config_dword(dev, cap + PCI_X_STATUS, &stat);
- if (err)
+ if (pci_read_config_dword(dev, cap + PCI_X_STATUS, &stat))
return -EINVAL;
- return (stat & PCI_X_STATUS_MAX_READ) >> 12;
+ return 512 << ((stat & PCI_X_STATUS_MAX_READ) >> 21);
}
EXPORT_SYMBOL(pcix_get_max_mmrbc);
@@ -2600,18 +2600,17 @@ EXPORT_SYMBOL(pcix_get_max_mmrbc);
*/
int pcix_get_mmrbc(struct pci_dev *dev)
{
- int ret, cap;
- u32 cmd;
+ int cap;
+ u16 cmd;
cap = pci_find_capability(dev, PCI_CAP_ID_PCIX);
if (!cap)
return -EINVAL;
- ret = pci_read_config_dword(dev, cap + PCI_X_CMD, &cmd);
- if (!ret)
- ret = 512 << ((cmd & PCI_X_CMD_MAX_READ) >> 2);
+ if (pci_read_config_word(dev, cap + PCI_X_CMD, &cmd))
+ return -EINVAL;
- return ret;
+ return 512 << ((cmd & PCI_X_CMD_MAX_READ) >> 2);
}
EXPORT_SYMBOL(pcix_get_mmrbc);
@@ -2626,28 +2625,27 @@ EXPORT_SYMBOL(pcix_get_mmrbc);
*/
int pcix_set_mmrbc(struct pci_dev *dev, int mmrbc)
{
- int cap, err = -EINVAL;
- u32 stat, cmd, v, o;
+ int cap;
+ u32 stat, v, o;
+ u16 cmd;
if (mmrbc < 512 || mmrbc > 4096 || !is_power_of_2(mmrbc))
- goto out;
+ return -EINVAL;
v = ffs(mmrbc) - 10;
cap = pci_find_capability(dev, PCI_CAP_ID_PCIX);
if (!cap)
- goto out;
+ return -EINVAL;
- err = pci_read_config_dword(dev, cap + PCI_X_STATUS, &stat);
- if (err)
- goto out;
+ if (pci_read_config_dword(dev, cap + PCI_X_STATUS, &stat))
+ return -EINVAL;
if (v > (stat & PCI_X_STATUS_MAX_READ) >> 21)
return -E2BIG;
- err = pci_read_config_dword(dev, cap + PCI_X_CMD, &cmd);
- if (err)
- goto out;
+ if (pci_read_config_word(dev, cap + PCI_X_CMD, &cmd))
+ return -EINVAL;
o = (cmd & PCI_X_CMD_MAX_READ) >> 2;
if (o != v) {
@@ -2657,10 +2655,10 @@ int pcix_set_mmrbc(struct pci_dev *dev, int mmrbc)
cmd &= ~PCI_X_CMD_MAX_READ;
cmd |= v << 2;
- err = pci_write_config_dword(dev, cap + PCI_X_CMD, cmd);
+ if (pci_write_config_word(dev, cap + PCI_X_CMD, cmd))
+ return -EIO;
}
-out:
- return err;
+ return 0;
}
EXPORT_SYMBOL(pcix_set_mmrbc);
@@ -3023,7 +3021,6 @@ EXPORT_SYMBOL(pcim_pin_device);
EXPORT_SYMBOL(pci_disable_device);
EXPORT_SYMBOL(pci_find_capability);
EXPORT_SYMBOL(pci_bus_find_capability);
-EXPORT_SYMBOL(pci_register_set_vga_state);
EXPORT_SYMBOL(pci_release_regions);
EXPORT_SYMBOL(pci_request_regions);
EXPORT_SYMBOL(pci_request_regions_exclusive);