On Thu, 03 Jul 2014 15:35:07 +0100 "Jan Beulich" <[email protected]> wrote:
> Relying on static functions used just once to get inlined (and > subsequently have dead code paths eliminated) is wrong: Compilers are > free to decide whether they do this, regardless of optimization level. > With this not happening for vdso_addr() (observed with gcc 4.1.x), an > unresolved reference to align_vdso_addr() causes the build to fail. > > Signed-off-by: Jan Beulich <[email protected]> > Cc: Andy Lutomirski <[email protected]> > --- > arch/x86/vdso/vma.c | 4 ++++ > 1 file changed, 4 insertions(+) > > --- 3.16-rc3/arch/x86/vdso/vma.c > +++ 3.16-rc3-x86-vdso-build/arch/x86/vdso/vma.c > @@ -62,6 +62,9 @@ struct linux_binprm; > Only used for the 64-bit and x32 vdsos. */ > static unsigned long vdso_addr(unsigned long start, unsigned len) > { > +#ifdef CONFIG_X86_32 > + return 0; > +#else > unsigned long addr, end; > unsigned offset; > end = (start + PMD_SIZE - 1) & PMD_MASK; > @@ -83,6 +86,7 @@ static unsigned long vdso_addr(unsigned > addr = align_vdso_addr(addr); > > return addr; > +#endif > } > > static int map_vdso(const struct vdso_image *image, bool calculate_addr) Tested-by: Andrew Morton <[email protected]> -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to [email protected] More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
