From 586f83e2b4c080073b115c1a0fcc2757f52839b8 Mon Sep 17 00:00:00 2001 From: David Rientjes Date: Tue, 22 Mar 2011 16:34:56 -0700 Subject: pnp: only assign IORESOURCE_DMA if CONFIG_ISA_DMA_API is enabled IORESOURCE_DMA cannot be assigned without utilizing the interface provided by CONFIG_ISA_DMA_API, specifically request_dma() and free_dma(). Thus, there's a strict dependency on the config option and limits IORESOURCE_DMA only to architectures that support ISA-style DMA. ia64 is not one of those architectures, so pnp_check_dma() no longer needs to be special-cased for that architecture. pnp_assign_resources() will now return -EINVAL if IORESOURCE_DMA is attempted on such a kernel. Signed-off-by: David Rientjes Cc: Ingo Molnar Cc: "H. Peter Anvin" Cc: Thomas Gleixner Cc: Bjorn Helgaas Cc: Russell King Cc: "Luck, Tony" Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- drivers/pnp/base.h | 2 ++ 1 file changed, 2 insertions(+) (limited to 'drivers/pnp/base.h') diff --git a/drivers/pnp/base.h b/drivers/pnp/base.h index 19bc73695475..fa4e0a5db3f8 100644 --- a/drivers/pnp/base.h +++ b/drivers/pnp/base.h @@ -142,7 +142,9 @@ void __pnp_remove_device(struct pnp_dev *dev); int pnp_check_port(struct pnp_dev *dev, struct resource *res); int pnp_check_mem(struct pnp_dev *dev, struct resource *res); int pnp_check_irq(struct pnp_dev *dev, struct resource *res); +#ifdef CONFIG_ISA_DMA_API int pnp_check_dma(struct pnp_dev *dev, struct resource *res); +#endif char *pnp_resource_type_name(struct resource *res); void dbg_pnp_show_resources(struct pnp_dev *dev, char *desc); -- cgit v1.2.3-58-ga151