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

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Date:   Mon, 13 Dec 2021 04:29:32 +0900
From:   Masahiro Yamada <masahiroy@...nel.org>
To:     linux-kbuild@...r.kernel.org
Cc:     Michal Simek <michal.simek@...inx.com>, linux-arch@...r.kernel.org,
        linux-kernel@...r.kernel.org, David Howells <dhowells@...hat.com>,
        David Woodhouse <dwmw2@...radead.org>,
        keyrings@...r.kernel.org, Richard Weinberger <richard@....at>,
        Masahiro Yamada <masahiroy@...nel.org>
Subject: [PATCH 01/10] certs: use $@ to simplify the key generation rule

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 \
-		-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