Am 09.09.2012 15:11, schrieb Peter Hüwe: >>>> Maybe some parts of the I2C sub-system can also just depend on >>>> GENERIC_IO instead of HAS_IOMEM. >>>> An arch has GENERIC_IO=y if it supports everything defined in >>>> generic-asm/io.h which is more than enough for most stub drivers. >>> >>> The only thing which seems to be missing on UML is the ioremap function >>> family ;/ >> >> Why do you need ioremap() in a stub driver? >> This sounds strange. > > > This was a misunderstanding - the main part of the I2C subsystem doesn't > depend at all on HAS_IOMEM, only the main part of the i2c/busses section. > And almost all of those drivers use ioremap.
Sure. They need real hardware. :-) > For my stub driver I don't need any of that, I'd be fine with the move of > HAS_IOMEM as proposed by Jean. IMHO you should replace the HAS_IOMEM with GENERIC_IO. Otherwise you may break the build on s390. Thanks, //richard
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