Re: [PATCH 0/2] Fix objtool warnings if LTO is enabled for LoongArch

[Tiezhu Yang]

On 2025/8/16 下午10:59, Huacai Chen wrote:
> On Fri, Aug 15, 2025 at 7:01 AM Nathan Chancellor <nathan@xxxxxxxxxx> wrote:
> > On Tue, Aug 12, 2025 at 09:27:14PM +0800, Tiezhu Yang wrote:
> > > The patch #1 should be a preparation for patch #2, that is to say,
> > > the patch #2 is dependent on the patch #1, otherwise there is build
> > > error if LTO is enabled after only applying patch #2.
> >
> > Thanks, these two patches do indeed resolve most of the warnings that I
> > see.
> >
> > Tested-by: Nathan Chancellor <nathan@xxxxxxxxxx>
> >
> > > With this series, most of warnings have been silenced, only remains
> > > the following warning by now, it needs more analysis:
> > >
> > >    vmlinux.o: warning: objtool: __efistub_efi_boot_kernel() falls through
> > >    to next function __efistub_exit_boot_func()
> >
> > Yes, I do see this one too. Odd, as efi_boot_kernel() ends in a
> > __noreturn function...
> But this one only exists for LTO?

Yes, this is true.

I have fixed this warning and the other new warnings locally,
will do more testing before sending patches.

Thanks,
Tiezhu