Re: [PATCH] efi/libstub: refactor cmd_stubcopy

From: Masahiro Yamada
Date: Fri Feb 15 2019 - 21:08:40 EST


On Sat, Feb 16, 2019 at 12:38 AM Ard Biesheuvel
<ard.biesheuvel@xxxxxxxxxx> wrote:
>
> On Fri, 15 Feb 2019 at 06:49, Masahiro Yamada
> <yamada.masahiro@xxxxxxxxxxxxx> wrote:
> >
> > On Tue, Feb 12, 2019 at 4:26 PM Ard Biesheuvel
> > <ard.biesheuvel@xxxxxxxxxx> wrote:
> > >
> > > On Tue, 12 Feb 2019 at 04:45, Masahiro Yamada
> > > <yamada.masahiro@xxxxxxxxxxxxx> wrote:
> > > >
> > > > It took me a while to understand what is going on in the nested
> > > > if-blocks.
> > > >
> > > > Simplify it by removing unneeded code.
> > > >
> > > > - if_changed automatically adds 'set -e', so any failure in the
> > > > series of commands makes it immediately fail as a whole.
> > > > So, the outer if block is entirely redundant.
> > > >
> > > > - Since commit 9c2af1c7377a ("kbuild: add .DELETE_ON_ERROR special
> > > > target"), GNU Make automatically deletes the target on any failure
> > > > in its recipe. The explicit 'rm -f $@' is redundant.
> > > >
> > > > - surrounding commands with ( ) will spawn a subshell to execute them
> > > > in it, but it is rarely useful to do so.
> > > >
> > > > Signed-off-by: Masahiro Yamada <yamada.masahiro@xxxxxxxxxxxxx>
> > >
> > > Assuming that it still works as expected:
> > >
> > > Acked-by: Ard Biesheuvel <ard.biesheuvel@xxxxxxxxxx>
> > >
> > > You can test this by adding a statically initialized global function
> > > pointer to any of the libstub source files that get built for ARM.
> > >
> > > Thanks!
> >
> >
> > I tried that, and it failed as expected.
> >
>
> Great, thanks for double checking.
>
> Are you taking this directly, or do you want me to take it via the EFI
> tree? Either is fine with me
>
>

Could you apply it to your EFI tree?
Thanks.



--
Best Regards
Masahiro Yamada