linux-kernel - Re: [PATCH 01/10] certs: use $@ to simplify the key generation rule

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Message-ID: <CAK7LNAQxvQ2U3y_eJi8EeO3SNbzVHWBmaAyEN_1rq-TMPfyLHw@mail.gmail.com>
Date:   Tue, 14 Dec 2021 10:45:20 +0900
From:   Masahiro Yamada <masahiroy@...nel.org>
To:     Nicolas Schier <n.schier@....de>
Cc:     Linux Kbuild mailing list <linux-kbuild@...r.kernel.org>,
        Michal Simek <michal.simek@...inx.com>,
        linux-arch <linux-arch@...r.kernel.org>,
        Linux Kernel Mailing List <linux-kernel@...r.kernel.org>,
        David Howells <dhowells@...hat.com>,
        David Woodhouse <dwmw2@...radead.org>,
        keyrings@...r.kernel.org, Richard Weinberger <richard@....at>
Subject: Re: [PATCH 01/10] certs: use $@ to simplify the key generation rule

On Mon, Dec 13, 2021 at 10:30 PM Nicolas Schier <n.schier@....de> wrote:
>
> On Mon, Dec 13, 2021 at 04:29:32AM +0900, Masahiro Yamada wrote:
> > Do not repeat $(obj)/signing_key.pem
> >
> > Signed-off-by: Masahiro Yamada <masahiroy@...nel.org>
> > ---
> >
> >  certs/Makefile | 3 +--
> >  1 file changed, 1 insertion(+), 2 deletions(-)
> >
> > diff --git a/certs/Makefile b/certs/Makefile
> > index a702b70f3cb9..97fd6cc02972 100644
> > --- a/certs/Makefile
> > +++ b/certs/Makefile
> > @@ -61,8 +61,7 @@ keytype-$(CONFIG_MODULE_SIG_KEY_TYPE_ECDSA) := -newkey ec -pkeyopt ec_paramgen_c
> >  quiet_cmd_gen_key = GENKEY  $@
> >        cmd_gen_key = openssl req -new -nodes -utf8 -$(CONFIG_MODULE_SIG_HASH) -days 36500 \
> >               -batch -x509 -config $(obj)/x509.genkey \
>
> Don't you want to replace $< too?

Ah, goot catch! Thanks.

I will change it as well.




> Reviewed-by: Nicolas Schier <n.schier@....de>
>
> > -             -outform PEM -out $(obj)/signing_key.pem \
> > -             -keyout $(obj)/signing_key.pem $(keytype-y) 2>&1
> > +             -outform PEM -out $@ -keyout $@ $(keytype-y) 2>&1
> >
> >  $(obj)/signing_key.pem: $(obj)/x509.genkey FORCE
> >       $(call if_changed,gen_key)
> > --
> > 2.32.0
> >



--
Best Regards
Masahiro Yamada