From 575e3348cb80c3265278756778d5091d5ca4efbf Mon Sep 17 00:00:00 2001 From: Michael Ellerman Date: Tue, 8 May 2007 12:03:07 +1000 Subject: PCI: Use a weak symbol for the empty version of pcibios_add_platform_entries() I'm not sure if this is going to fly, weak symbols work on the compilers I'm using, but whether they work for all of the affected architectures I can't say. I've cc'ed as many arch maintainers/lists as I could find. But assuming they do, we can use a weak empty definition of pcibios_add_platform_entries() to avoid having an empty definition on every arch. Signed-off-by: Michael Ellerman Signed-off-by: Greg Kroah-Hartman --- drivers/pci/pci-sysfs.c | 5 +++++ 1 file changed, 5 insertions(+) (limited to 'drivers/pci/pci-sysfs.c') diff --git a/drivers/pci/pci-sysfs.c b/drivers/pci/pci-sysfs.c index 284e83a527f..e5737f0b399 100644 --- a/drivers/pci/pci-sysfs.c +++ b/drivers/pci/pci-sysfs.c @@ -600,6 +600,11 @@ static struct bin_attribute pcie_config_attr = { .write = pci_write_config, }; +void __attribute__ ((weak)) pcibios_add_platform_entries(struct pci_dev *dev) +{ + return; +} + int __must_check pci_create_sysfs_dev_files (struct pci_dev *pdev) { struct bin_attribute *rom_attr = NULL; -- cgit v1.2.3-70-g09d2 From a2cd52ca904f5913651e71764755e712894ccc2f Mon Sep 17 00:00:00 2001 From: Michael Ellerman Date: Tue, 8 May 2007 12:03:08 +1000 Subject: PCI: Make pcibios_add_platform_entries() return errors Currently pcibios_add_platform_entries() returns void, but could fail, so instead have it return an int and propagate errors up to pci_create_sysfs_dev_files(). Fixes: arch/powerpc/kernel/pci_64.c: In function 'pcibios_add_platform_entries': arch/powerpc/kernel/pci_64.c:878: warning: ignoring return value of 'device_create_file', declared with attribute warn_unused_result arch/powerpc/kernel/pci_32.c: In function 'pcibios_add_platform_entries': arch/powerpc/kernel/pci_32.c:1043: warning: ignoring return value of 'device_create_file', declared with attribute warn_unused_result Signed-off-by: Michael Ellerman Signed-off-by: Greg Kroah-Hartman --- arch/powerpc/kernel/pci_32.c | 4 ++-- arch/powerpc/kernel/pci_64.c | 4 ++-- drivers/pci/pci-sysfs.c | 10 +++++++--- include/linux/pci.h | 2 +- 4 files changed, 12 insertions(+), 8 deletions(-) (limited to 'drivers/pci/pci-sysfs.c') diff --git a/arch/powerpc/kernel/pci_32.c b/arch/powerpc/kernel/pci_32.c index e66064b5093..86982112b0d 100644 --- a/arch/powerpc/kernel/pci_32.c +++ b/arch/powerpc/kernel/pci_32.c @@ -1047,10 +1047,10 @@ void pcibios_make_OF_bus_map(void) #endif /* CONFIG_PPC_OF */ /* Add sysfs properties */ -void pcibios_add_platform_entries(struct pci_dev *pdev) +int pcibios_add_platform_entries(struct pci_dev *pdev) { #ifdef CONFIG_PPC_OF - device_create_file(&pdev->dev, &dev_attr_devspec); + return device_create_file(&pdev->dev, &dev_attr_devspec); #endif /* CONFIG_PPC_OF */ } diff --git a/arch/powerpc/kernel/pci_64.c b/arch/powerpc/kernel/pci_64.c index 249cca27a9b..96d393c2da0 100644 --- a/arch/powerpc/kernel/pci_64.c +++ b/arch/powerpc/kernel/pci_64.c @@ -876,9 +876,9 @@ static ssize_t pci_show_devspec(struct device *dev, } static DEVICE_ATTR(devspec, S_IRUGO, pci_show_devspec, NULL); -void pcibios_add_platform_entries(struct pci_dev *pdev) +int pcibios_add_platform_entries(struct pci_dev *pdev) { - device_create_file(&pdev->dev, &dev_attr_devspec); + return device_create_file(&pdev->dev, &dev_attr_devspec); } #define ISA_SPACE_MASK 0x1 diff --git a/drivers/pci/pci-sysfs.c b/drivers/pci/pci-sysfs.c index e5737f0b399..9c4a123eacd 100644 --- a/drivers/pci/pci-sysfs.c +++ b/drivers/pci/pci-sysfs.c @@ -600,9 +600,9 @@ static struct bin_attribute pcie_config_attr = { .write = pci_write_config, }; -void __attribute__ ((weak)) pcibios_add_platform_entries(struct pci_dev *dev) +int __attribute__ ((weak)) pcibios_add_platform_entries(struct pci_dev *dev) { - return; + return 0; } int __must_check pci_create_sysfs_dev_files (struct pci_dev *pdev) @@ -645,10 +645,14 @@ int __must_check pci_create_sysfs_dev_files (struct pci_dev *pdev) } } /* add platform-specific attributes */ - pcibios_add_platform_entries(pdev); + if (pcibios_add_platform_entries(pdev)) + goto err_rom_file; return 0; +err_rom_file: + if (pci_resource_len(pdev, PCI_ROM_RESOURCE)) + sysfs_remove_bin_file(&pdev->dev.kobj, rom_attr); err_rom: kfree(rom_attr); err_resource_files: diff --git a/include/linux/pci.h b/include/linux/pci.h index 18319aba1a5..483db814770 100644 --- a/include/linux/pci.h +++ b/include/linux/pci.h @@ -881,7 +881,7 @@ extern int pci_pci_problems; extern unsigned long pci_cardbus_io_size; extern unsigned long pci_cardbus_mem_size; -extern void pcibios_add_platform_entries(struct pci_dev *dev); +extern int pcibios_add_platform_entries(struct pci_dev *dev); #endif /* __KERNEL__ */ #endif /* LINUX_PCI_H */ -- cgit v1.2.3-70-g09d2