From: Sergei Shtylyov Date: Sat, 26 Apr 2008 15:36:31 +0000 (+0200) Subject: ide: make ide_pci_check_iomem() actually work X-Git-Url: http://git.lede-project.org./?a=commitdiff_plain;h=1baccff8a5823b51d7bf2740ef3ef17e06bfa7e2;p=openwrt%2Fstaging%2Fblogic.git ide: make ide_pci_check_iomem() actually work This function didn't actually check if a given BAR is in I/O space because of using the bogus PCI_BASE_ADDRESS_IO_MASK (which equals ~3) to test the resource flags instead of IORESOURCE_IO -- fix this, make ide_hwif_configure() check the results failing if necessary, and move the printk() call to the failure path. Signed-off-by: Sergei Shtylyov Signed-off-by: Bartlomiej Zolnierkiewicz --- diff --git a/drivers/ide/setup-pci.c b/drivers/ide/setup-pci.c index f7ede0e42881..2dc3835478ec 100644 --- a/drivers/ide/setup-pci.c +++ b/drivers/ide/setup-pci.c @@ -301,11 +301,12 @@ static int ide_pci_configure(struct pci_dev *dev, const struct ide_port_info *d) * @d: IDE port info * @bar: BAR number * - * Checks if a BAR is configured and points to MMIO space. If so - * print an error and return an error code. Otherwise return 0 + * Checks if a BAR is configured and points to MMIO space. If so, + * return an error code. Otherwise return 0 */ -static int ide_pci_check_iomem(struct pci_dev *dev, const struct ide_port_info *d, int bar) +static int ide_pci_check_iomem(struct pci_dev *dev, const struct ide_port_info *d, + int bar) { ulong flags = pci_resource_flags(dev, bar); @@ -313,14 +314,11 @@ static int ide_pci_check_iomem(struct pci_dev *dev, const struct ide_port_info * if (!flags || pci_resource_len(dev, bar) == 0) return 0; - /* I/O space */ - if(flags & PCI_BASE_ADDRESS_IO_MASK) + /* I/O space */ + if (flags & IORESOURCE_IO) return 0; /* Bad */ - printk(KERN_ERR "%s: IO baseregs (BIOS) are reported " - "as MEM, report to " - ".\n", d->name); return -EINVAL; } @@ -348,9 +346,12 @@ static ide_hwif_t *ide_hwif_configure(struct pci_dev *dev, struct hw_regs_s hw; if ((d->host_flags & IDE_HFLAG_ISA_PORTS) == 0) { - /* Possibly we should fail if these checks report true */ - ide_pci_check_iomem(dev, d, 2*port); - ide_pci_check_iomem(dev, d, 2*port+1); + if (ide_pci_check_iomem(dev, d, 2 * port) || + ide_pci_check_iomem(dev, d, 2 * port + 1)) { + printk(KERN_ERR "%s: I/O baseregs (BIOS) are reported " + "as MEM for port %d!\n", d->name, port); + return NULL; + } ctl = pci_resource_start(dev, 2*port+1); base = pci_resource_start(dev, 2*port);