On Wed, Nov 23, 2005 at 01:40:38PM +1100, Paul Mackerras wrote: > Marcelo Tosatti writes: > > > Paul, you're OK with the following definitions on asm-ppc/io.h? > > > > +/* access ports */ > > +#define setbits32(_addr, _v) out_be32(&(_addr), in_be32(&(_addr)) | (_v)) > > +#define clrbits32(_addr, _v) out_be32(&(_addr), in_be32(&(_addr)) & ~(_v)) > > + > > +#define setbits16(_addr, _v) out_be16(&(_addr), in_be16(&(_addr)) | (_v)) > > +#define clrbits16(_addr, _v) out_be16(&(_addr), in_be16(&(_addr)) & ~(_v)) > > I guess so... how many drivers need these things?
Many. Check for instance git-diff-tree -p e37b0c9670fed2264661ade1beb5c228dec29c96
