Greg KH, le mar. 04 août 2020 17:49:52 +0200, a ecrit: > > #define inb(c) ({ u8 __v; __io_pbr(); __v = readb_cpu((void*)(PCI_IOBASE + (c))); __io_par(__v); __v; }) > > > > and thus yes it's arithmetic over a (void*) pointer, the caller cannot > > do anything about it. > > And that's fine, math with pointers, even void ones, is ok. C++ doesn't like it, but in general compilers provide some semantic for it, yes. > I wonder why riscv was complaining about that. It's not nice, but it is > valid C. Strictly C speaking, no, but GNU C yes. > Let's see if any of their developers care about it :) Ok :) In the meanwhile I sent a v2 series that should fix the different link cases, just not the particular riscv warning. Samuel