diff options
Diffstat (limited to 'drivers/pci/msi.c')
| -rw-r--r-- | drivers/pci/msi.c | 44 |
1 files changed, 4 insertions, 40 deletions
diff --git a/drivers/pci/msi.c b/drivers/pci/msi.c index a2002e7dc18..762bff18187 100644 --- a/drivers/pci/msi.c +++ b/drivers/pci/msi.c @@ -24,20 +24,8 @@ #include "pci.h" #include "msi.h" -static struct kmem_cache* msi_cachep; - static int pci_msi_enable = 1; -static int msi_cache_init(void) -{ - msi_cachep = kmem_cache_create("msi_cache", sizeof(struct msi_desc), - 0, SLAB_HWCACHE_ALIGN, NULL, NULL); - if (!msi_cachep) - return -ENOMEM; - - return 0; -} - static void msi_set_enable(struct pci_dev *dev, int enable) { int pos; @@ -221,28 +209,12 @@ void unmask_msi_irq(unsigned int irq) static int msi_free_irq(struct pci_dev* dev, int irq); -static int msi_init(void) -{ - static int status = -ENOMEM; - - if (!status) - return status; - - status = msi_cache_init(); - if (status < 0) { - pci_msi_enable = 0; - printk(KERN_WARNING "PCI: MSI cache init failed\n"); - return status; - } - - return status; -} static struct msi_desc* alloc_msi_entry(void) { struct msi_desc *entry; - entry = kmem_cache_zalloc(msi_cachep, GFP_KERNEL); + entry = kzalloc(sizeof(struct msi_desc), GFP_KERNEL); if (!entry) return NULL; @@ -368,7 +340,7 @@ static int msi_capability_init(struct pci_dev *dev) /* Configure MSI capability structure */ irq = arch_setup_msi_irq(dev, entry); if (irq < 0) { - kmem_cache_free(msi_cachep, entry); + kfree(entry); return irq; } entry->link.head = irq; @@ -441,7 +413,7 @@ static int msix_capability_init(struct pci_dev *dev, /* Configure MSI-X capability structure */ irq = arch_setup_msi_irq(dev, entry); if (irq < 0) { - kmem_cache_free(msi_cachep, entry); + kfree(entry); break; } entries[i].vector = irq; @@ -530,10 +502,6 @@ int pci_enable_msi(struct pci_dev* dev) if (pci_msi_supported(dev) < 0) return -EINVAL; - status = msi_init(); - if (status < 0) - return status; - pos = pci_find_capability(dev, PCI_CAP_ID_MSI); if (!pos) return -EINVAL; @@ -604,7 +572,7 @@ static int msi_free_irq(struct pci_dev* dev, int irq) get_irq_msi(entry->link.tail)->link.head = entry->link.head; arch_teardown_msi_irq(irq); - kmem_cache_free(msi_cachep, entry); + kfree(entry); if (type == PCI_CAP_ID_MSIX) { writel(1, base + entry_nr * PCI_MSIX_ENTRY_SIZE + @@ -641,10 +609,6 @@ int pci_enable_msix(struct pci_dev* dev, struct msix_entry *entries, int nvec) if (!entries || pci_msi_supported(dev) < 0) return -EINVAL; - status = msi_init(); - if (status < 0) - return status; - pos = pci_find_capability(dev, PCI_CAP_ID_MSIX); if (!pos) return -EINVAL; |