在 2022/3/28 10:01, Sui Jingfeng 写道: > > On 2022/3/28 16:51, kernel test robot wrote: >> Hi Sui, [...] >> > > Hi,  my driver will not used on microblaze arch, > > what does this warnings means, do i need to fix this? Hi Jingfeng, The problem it discovered is general for all archs. Type of reg_base (MMIO pointer) should be "void __iomem *" instead of "void *" everywhere, including parameter list. __iomem is the attribute for MMIO. Thanks. - Jiaxun