On Thu, Oct 20, 2016 at 02:23:14PM +0200, Andrew Jones wrote: > On Fri, Oct 14, 2016 at 08:40:43PM +0800, Peter Xu wrote: > > Signed-off-by: Peter Xu <peterx@xxxxxxxxxx> > > --- > > lib/asm-generic/page.h | 5 +++++ > > 1 file changed, 5 insertions(+) > > > > diff --git a/lib/asm-generic/page.h b/lib/asm-generic/page.h > > index 7b8a08b..cbdc8f6 100644 > > --- a/lib/asm-generic/page.h > > +++ b/lib/asm-generic/page.h Another comment. IS_ALIGNED shouldn't be here, it should be in lib/libcflat.h under the definition of ALIGN there. drew > > @@ -19,6 +19,11 @@ > > > > #define PAGE_ALIGN(addr) ALIGN(addr, PAGE_SIZE) > > > > +#define IS_ALIGNED(x, a) (((x) & ((typeof(x))(a) - 1)) == 0) > > +#define PAGE_ALIGNED_4K(x) IS_ALIGNED((x), (0x1000)) > > +#define PAGE_ALIGNED_2M(x) IS_ALIGNED((x), (0x200000)) > > +#define PAGE_ALIGNED_1G(x) IS_ALIGNED((x), (0x40000000)) > > I like IS_ALIGNED, but not the others. The others are strangely > named because it's half asking if an address is page aligned and > half asking if it's aligned to a given boundary. Why not just > ask the boundary, like ALIGNED_2M(x)? Anyway, my preference would > be to replace them with SZ_4K, SZ_2M, SZ_1G definitions. Users would > then do > > IS_ALIGNED(addr, SZ_2M) > > or whatever, which isn't much more typing. > > Thanks, > drew > -- > To unsubscribe from this list: send the line "unsubscribe kvm" in > the body of a message to majordomo@xxxxxxxxxxxxxxx > More majordomo info at http://vger.kernel.org/majordomo-info.html -- To unsubscribe from this list: send the line "unsubscribe kvm" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
