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[PATCH] must_check attributes for PCI layer. 

Self explanatory really. Some newer gcc's print a warning
if a function is used and we don't check its result.
We do this for a bunch of things in the kernel already,
this extends that to the PCI layer.

Based on a patch originally from Arjan van de Ven.

Signed-off-by: Dave Jones <davej@redhat.com>
Signed-off-by: Arjan van de Ven <arjan@infradead.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
This commit is contained in:
Dave Jones 2005-08-09 00:20:10 -04:00 committed by Greg Kroah-Hartman
parent 7bcf5c0e7f
commit 144a50ea5e
1 changed files with 10 additions and 10 deletions
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20
include/linux/pci.h
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@ -376,32 +376,32 @@ static inline int pci_write_config_dword(struct pci_dev *dev, int where, u32 val
return pci_bus_write_config_dword (dev->bus, dev->devfn, where, val);
}
int pci_enable_device(struct pci_dev *dev);
int pci_enable_device_bars(struct pci_dev *dev, int mask);
int __must_check pci_enable_device(struct pci_dev *dev);
int __must_check pci_enable_device_bars(struct pci_dev *dev, int mask);
void pci_disable_device(struct pci_dev *dev);
void pci_set_master(struct pci_dev *dev);
#define HAVE_PCI_SET_MWI
int pci_set_mwi(struct pci_dev *dev);
int __must_check pci_set_mwi(struct pci_dev *dev);
void pci_clear_mwi(struct pci_dev *dev);
void pci_intx(struct pci_dev *dev, int enable);
int pci_set_dma_mask(struct pci_dev *dev, u64 mask);
int pci_set_consistent_dma_mask(struct pci_dev *dev, u64 mask);
int __must_check pci_set_dma_mask(struct pci_dev *dev, u64 mask);
int __must_check pci_set_consistent_dma_mask(struct pci_dev *dev, u64 mask);
void pci_update_resource(struct pci_dev *dev, struct resource *res, int resno);
int pci_assign_resource(struct pci_dev *dev, int i);
void pci_restore_bars(struct pci_dev *dev);
/* ROM control related routines */
void __iomem *pci_map_rom(struct pci_dev *pdev, size_t *size);
void __iomem *pci_map_rom_copy(struct pci_dev *pdev, size_t *size);
void __iomem __must_check *pci_map_rom(struct pci_dev *pdev, size_t *size);
void __iomem __must_check *pci_map_rom_copy(struct pci_dev *pdev, size_t *size);
void pci_unmap_rom(struct pci_dev *pdev, void __iomem *rom);
void pci_remove_rom(struct pci_dev *pdev);
/* Power management related routines */
int pci_save_state(struct pci_dev *dev);
int pci_restore_state(struct pci_dev *dev);
int pci_set_power_state(struct pci_dev *dev, pci_power_t state);
pci_power_t pci_choose_state(struct pci_dev *dev, pm_message_t state);
int pci_enable_wake(struct pci_dev *dev, pci_power_t state, int enable);
int __must_check pci_set_power_state(struct pci_dev *dev, pci_power_t state);
pci_power_t __must_check pci_choose_state(struct pci_dev *dev, pm_message_t state);
int __must_check pci_enable_wake(struct pci_dev *dev, pci_power_t state, int enable);
/* Helper functions for low-level code (drivers/pci/setup-[bus,res].c) */
void pci_bus_assign_resources(struct pci_bus *bus);