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Date: Thu, 18 Sep 2014 02:30:16 +0100 From: Liviu Dudau <Liviu.Dudau@....com> To: Bjorn Helgaas <bhelgaas@...gle.com>, Arnd Bergmann <arnd@...db.de>, Rob Herring <robh+dt@...nel.org>, Jason Gunthorpe <jgunthorpe@...idianresearch.com>, Benjamin Herrenschmidt <benh@...nel.crashing.org>, Catalin Marinas <catalin.marinas@....com>, Will Deacon <Will.Deacon@....com>, Russell King <linux@....linux.org.uk>, linux-pci <linux-pci@...r.kernel.org>, Linus Walleij <linus.walleij@...aro.org> Cc: Tanmay Inamdar <tinamdar@....com>, Grant Likely <grant.likely@...retlab.ca>, Sinan Kaya <okaya@...eaurora.org>, Jingoo Han <jg1.han@...sung.com>, Kukjin Kim <kgene.kim@...sung.com>, Suravee Suthikulanit <suravee.suthikulpanit@....com>, linux-arch <linux-arch@...r.kernel.org>, LKML <linux-kernel@...r.kernel.org>, Device Tree ML <devicetree@...r.kernel.org>, LAKML <linux-arm-kernel@...ts.infradead.org> Subject: [PATCH v11 01/10] Fix ioport_map() for !CONFIG_GENERIC_IOMAP cases. The inline version of ioport_map() that gets used when !CONFIG_GENERIC_IOMAP is wrong. It returns a mapped (i.e. virtual) address that can start from zero and completely ignores the PCI_IOBASE and IO_SPACE_LIMIT that most architectures that use !CONFIG_GENERIC_MAP define. Signed-off-by: Liviu Dudau <Liviu.Dudau@....com> Reviewed-by: Catalin Marinas <catalin.marinas@....com> Acked-by: Arnd Bergmann <arnd@...db.de> Tested-by: Tanmay Inamdar <tinamdar@....com> --- include/asm-generic/io.h | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/include/asm-generic/io.h b/include/asm-generic/io.h index 975e1cc..2e2161b 100644 --- a/include/asm-generic/io.h +++ b/include/asm-generic/io.h @@ -331,7 +331,7 @@ static inline void iounmap(void __iomem *addr) #ifndef CONFIG_GENERIC_IOMAP static inline void __iomem *ioport_map(unsigned long port, unsigned int nr) { - return (void __iomem *) port; + return (void __iomem *)(PCI_IOBASE + (port & IO_SPACE_LIMIT)); } static inline void ioport_unmap(void __iomem *p) -- 2.1.0 -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@...r.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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