On 07/22/2014 06:32 PM, Arnd Bergmann wrote: > On Sunday 20 July 2014 17:45:40 Chen Gang wrote: >>> >>> Next, I shall: >>> >>> - Remove HAS_IOMEM and NO_IOMEM from kernel, firstly. >>> >>> - Try to make dummy IOMEM functions for score architecture. >>> >>> - Continue discussing with UML for it. >>> >> >> Oh, sorry, I forgot, after remove IOMEM from kernel, also s390 and tile >> need implement dummy IOMEM if !PCI. >> >> If possible, I shall try to implement the dummy IOMEM in 'asm-generic', >> and let uml, score, s390 and tile use them when they need. > > Sorry for going round in circles, but looking back at the original patches, > adding the extra 'depends on HAS_IOMEM' does seem much better than the > other suggestions that came afterwards. > > In particular, removing HAS_IOMEM and NO_IOMEM sounds like an awful idea > to me. I'd rather add a HAS_IOPORT in addition to also catch architectures > that have no support for PC-style PIO. > Welcome any other members (especially driver members) ideas and suggestions -- driver members and architecture members have different tastes and different roles. For me, if no additional reply, I prefer to keep current status, and still add 'depends on HAS_IOMEM' for each driver which need it, but I am not sure whether driver members can bear it. Thanks. -- Chen Gang Open, share, and attitude like air, water, and life which God blessed -- To unsubscribe from this list: send the line "unsubscribe linux-iio" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
