[ add kbuild robot so they can add this check to their reports ] On Wed, Oct 7, 2020 at 9:47 AM Borislav Petkov <bp@xxxxxxxxx> wrote: > > On Wed, Oct 07, 2020 at 01:14:47PM +0200, Borislav Petkov wrote: > > On Tue, Oct 06, 2020 at 09:57:09AM -0000, tip-bot2 for Dan Williams wrote: > > > + /* Copy successful. Return zero */ > > > +.L_done_memcpy_trap: > > > + xorl %eax, %eax > > > +.L_done: > > > + ret > > > +SYM_FUNC_END(copy_mc_fragile) > > > +EXPORT_SYMBOL_GPL(copy_mc_fragile) > > > > That export together with CONFIG_MODVERSIONS causes > > > > WARNING: modpost: EXPORT symbol "copy_mc_fragile" [vmlinux] version generation failed, symbol will not be versioned. > > > > here. > > > > I don't see why tho... > > It doesn't look like it is toolchain-specific and in both cases, > copy_mc_fragile's checksum is 0. > > SUSE Leap 15.1: > > Name : binutils > Version : 2.32-lp151.3.6.1 > > $ grep -E "(copy_mc_fragile|copy_user_generic_unrolled)" Module.symvers > 0x00000000 copy_mc_fragile vmlinux EXPORT_SYMBOL_GPL > 0xecdcabd2 copy_user_generic_unrolled vmlinux EXPORT_SYMBOL > > debian testing: > > Package: binutils > Version: 2.35-2 > > $ grep -E "(copy_mc_fragile|copy_user_generic_unrolled)" Module.symvers > 0x00000000 copy_mc_fragile vmlinux EXPORT_SYMBOL_GPL > 0xecdcabd2 copy_user_generic_unrolled vmlinux EXPORT_SYMBOL Yes, I'm seeing this too on Fedora, I'll take a look.
