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| author | Arnd Bergmann <arnd@arndb.de> | 2016-06-10 10:51:04 +0200 |
|---|---|---|
| committer | Arnd Bergmann <arnd@arndb.de> | 2017-07-27 22:57:53 +0200 |
| commit | c4caa8db4c90a6d0e2258e34a203961e07903c05 (patch) | |
| tree | c032969f77fe05ab371ff83d3ce14c410a63c87c /arch/arm | |
| parent | cd5bad4135e8e72144a19429d359c36fd4172a88 (diff) | |
| download | linux-c4caa8db4c90a6d0e2258e34a203961e07903c05.tar.gz | |
ARM: ixp4xx: fix ioport_unmap definition
An empty macro definition can cause unexpected behavior, in case of the ixp4xx ioport_unmap, we get two warnings: drivers/net/wireless/marvell/libertas/if_cs.c: In function 'if_cs_release': drivers/net/wireless/marvell/libertas/if_cs.c:826:3: error: suggest braces around empty body in an 'if' statement [-Werror=empty-body] ioport_unmap(card->iobase); drivers/vfio/pci/vfio_pci_rdwr.c: In function 'vfio_pci_vga_rw': drivers/vfio/pci/vfio_pci_rdwr.c:230:15: error: the omitted middle operand in ?: will always be 'true', suggest explicit middle operand [-Werror=parentheses] is_ioport ? ioport_unmap(iomem) : iounmap(iomem); This uses an inline function to define the macro in a safer way. Signed-off-by: Arnd Bergmann <arnd@arndb.de> Acked-by: Krzysztof Halasa <khalasa@piap.pl>
Diffstat (limited to 'arch/arm')
| -rw-r--r-- | arch/arm/mach-ixp4xx/include/mach/io.h | 11 |
1 files changed, 9 insertions, 2 deletions
diff --git a/arch/arm/mach-ixp4xx/include/mach/io.h b/arch/arm/mach-ixp4xx/include/mach/io.h index d04d3ec97ac0..844e8ac593e2 100644 --- a/arch/arm/mach-ixp4xx/include/mach/io.h +++ b/arch/arm/mach-ixp4xx/include/mach/io.h @@ -534,8 +534,15 @@ static inline void iowrite32_rep(void __iomem *addr, const void *vaddr, #endif } -#define ioport_map(port, nr) ((void __iomem*)(port + PIO_OFFSET)) -#define ioport_unmap(addr) +#define ioport_map(port, nr) ioport_map(port, nr) +static inline void __iomem *ioport_map(unsigned long port, unsigned int nr) +{ + return ((void __iomem*)((port) + PIO_OFFSET)); +} +#define ioport_unmap(addr) ioport_unmap(addr) +static inline void ioport_unmap(void __iomem *addr) +{ +} #endif /* CONFIG_PCI */ #endif /* __ASM_ARM_ARCH_IO_H */ |