PCI: pciehp: remove first_slot field

[safe/jmp/linux-2.6] / drivers / pci / rom.c

diff --git a/drivers/pci/rom.c b/drivers/pci/rom.c
index a98b247..36864a9 100644 (file)
--- a/drivers/pci/rom.c
+++ b/drivers/pci/rom.c
@@ -21,7 +21,7 @@
  * between the ROM and other resources, so enabling it may disable access
  * to MMIO registers or other card memory.
  */
-static int pci_enable_rom(struct pci_dev *pdev)
+int pci_enable_rom(struct pci_dev *pdev)
 {
        struct resource *res = pdev->resource + PCI_ROM_RESOURCE;
        struct pci_bus_region region;
@@ -45,7 +45,7 @@ static int pci_enable_rom(struct pci_dev *pdev)
  * Disable ROM decoding on a PCI device by turning off the last bit in the
  * ROM BAR.
  */
-static void pci_disable_rom(struct pci_dev *pdev)
+void pci_disable_rom(struct pci_dev *pdev)
 {
        u32 rom_addr;
        pci_read_config_dword(pdev, pdev->rom_base_reg, &rom_addr);
@@ -55,6 +55,7 @@ static void pci_disable_rom(struct pci_dev *pdev)
 
 /**
  * pci_get_rom_size - obtain the actual size of the ROM image
+ * @pdev: target PCI device
  * @rom: kernel virtual pointer to image of ROM
  * @size: size of PCI window
  *  return: size of actual ROM image
@@ -63,7 +64,7 @@ static void pci_disable_rom(struct pci_dev *pdev)
  * The PCI window size could be much larger than the
  * actual image size.
  */
-size_t pci_get_rom_size(void __iomem *rom, size_t size)
+size_t pci_get_rom_size(struct pci_dev *pdev, void __iomem *rom, size_t size)
 {
        void __iomem *image;
        int last_image;
@@ -72,8 +73,10 @@ size_t pci_get_rom_size(void __iomem *rom, size_t size)
        do {
                void __iomem *pds;
                /* Standard PCI ROMs start out with these bytes 55 AA */
-               if (readb(image) != 0x55)
+               if (readb(image) != 0x55) {
+                       dev_err(&pdev->dev, "Invalid ROM contents\n");
                        break;
+               }
                if (readb(image + 1) != 0xAA)
                        break;
                /* get the PCI data structure and check its signature */
@@ -100,7 +103,8 @@ size_t pci_get_rom_size(void __iomem *rom, size_t size)
  * pci_map_rom - map a PCI ROM to kernel space
  * @pdev: pointer to pci device struct
  * @size: pointer to receive size of pci window over ROM
- * @return: kernel virtual pointer to image of ROM
+ *
+ * Return: kernel virtual pointer to image of ROM
  *
  * Map a PCI ROM into kernel space. If ROM is boot video ROM,
  * the shadow BIOS copy will be returned instead of the
@@ -158,7 +162,7 @@ void __iomem *pci_map_rom(struct pci_dev *pdev, size_t *size)
         * size is much larger than the actual size of the ROM.
         * True size is important if the ROM is going to be copied.
         */
-       *size = pci_get_rom_size(rom, *size);
+       *size = pci_get_rom_size(pdev, rom, *size);
        return rom;
 }
 
@@ -167,7 +171,8 @@ void __iomem *pci_map_rom(struct pci_dev *pdev, size_t *size)
  * pci_map_rom_copy - map a PCI ROM to kernel space, create a copy
  * @pdev: pointer to pci device struct
  * @size: pointer to receive size of pci window over ROM
- * @return: kernel virtual pointer to image of ROM
+ *
+ * Return: kernel virtual pointer to image of ROM
  *
  * Map a PCI ROM into kernel space. If ROM is boot video ROM,
  * the shadow BIOS copy will be returned instead of the
@@ -242,8 +247,7 @@ void pci_remove_rom(struct pci_dev *pdev)
 #endif  /*  0  */
 
 /**
- * pci_cleanup_rom - internal routine for freeing the ROM copy created
- * by pci_map_rom_copy called from remove.c
+ * pci_cleanup_rom - free the ROM copy created by pci_map_rom_copy
  * @pdev: pointer to pci device struct
  *
  * Free the copied ROM if we allocated one.
@@ -261,3 +265,5 @@ void pci_cleanup_rom(struct pci_dev *pdev)
 
 EXPORT_SYMBOL(pci_map_rom);
 EXPORT_SYMBOL(pci_unmap_rom);
+EXPORT_SYMBOL_GPL(pci_enable_rom);
+EXPORT_SYMBOL_GPL(pci_disable_rom);