From: Masahiro Yamada <masahiroy@kernel.org>
To: netdev@vger.kernel.org
Cc: Masahiro Yamada <masahiroy@kernel.org>,
Alexei Starovoitov <ast@kernel.org>,
Andrii Nakryiko <andrii@kernel.org>,
Daniel Borkmann <daniel@iogearbox.net>,
"David S. Miller" <davem@davemloft.net>,
Jakub Kicinski <kuba@kernel.org>,
John Fastabend <john.fastabend@gmail.com>,
KP Singh <kpsingh@kernel.org>, Martin KaFai Lau <kafai@fb.com>,
Michal Marek <michal.lkml@markovi.net>,
Song Liu <songliubraving@fb.com>, Yonghong Song <yhs@fb.com>,
bpf@vger.kernel.org, linux-kbuild@vger.kernel.org,
linux-kernel@vger.kernel.org
Subject: [PATCH 1/4] net: move CONFIG_NET guard to top Makefile
Date: Tue, 26 Jan 2021 08:16:55 +0900 [thread overview]
Message-ID: <20210125231659.106201-1-masahiroy@kernel.org> (raw)
When CONFIG_NET is disabled, nothing under the net/ directory is
compiled. Move the CONFIG_NET guard to the top Makefile so the net/
directory is entirely skipped.
When Kbuild visits net/Makefile, CONFIG_NET is obvioulsy 'y' because
CONFIG_NET is a bool option. Clean up net/Makefile.
Signed-off-by: Masahiro Yamada <masahiroy@kernel.org>
---
Makefile | 3 ++-
net/Makefile | 11 ++++-------
2 files changed, 6 insertions(+), 8 deletions(-)
diff --git a/Makefile b/Makefile
index b0e4767735dc..61357f7eb55f 100644
--- a/Makefile
+++ b/Makefile
@@ -649,7 +649,8 @@ ifeq ($(KBUILD_EXTMOD),)
core-y := init/ usr/
drivers-y := drivers/ sound/
drivers-$(CONFIG_SAMPLES) += samples/
-drivers-y += net/ virt/
+drivers-$(CONFIG_NET) += net/
+drivers-y += virt/
libs-y := lib/
endif # KBUILD_EXTMOD
diff --git a/net/Makefile b/net/Makefile
index d96b0aa8f39f..6fa3b2e26cab 100644
--- a/net/Makefile
+++ b/net/Makefile
@@ -6,20 +6,19 @@
# Rewritten to use lists instead of if-statements.
#
-obj-$(CONFIG_NET) := devres.o socket.o core/
+obj-y := devres.o socket.o core/
-tmp-$(CONFIG_COMPAT) := compat.o
-obj-$(CONFIG_NET) += $(tmp-y)
+obj-$(CONFIG_COMPAT) += compat.o
# LLC has to be linked before the files in net/802/
obj-$(CONFIG_LLC) += llc/
-obj-$(CONFIG_NET) += ethernet/ 802/ sched/ netlink/ bpf/ ethtool/
+obj-y += ethernet/ 802/ sched/ netlink/ bpf/ ethtool/
obj-$(CONFIG_NETFILTER) += netfilter/
obj-$(CONFIG_INET) += ipv4/
obj-$(CONFIG_TLS) += tls/
obj-$(CONFIG_XFRM) += xfrm/
obj-$(CONFIG_UNIX_SCM) += unix/
-obj-$(CONFIG_NET) += ipv6/
+obj-y += ipv6/
obj-$(CONFIG_BPFILTER) += bpfilter/
obj-$(CONFIG_PACKET) += packet/
obj-$(CONFIG_NET_KEY) += key/
@@ -63,9 +62,7 @@ obj-$(CONFIG_6LOWPAN) += 6lowpan/
obj-$(CONFIG_IEEE802154) += ieee802154/
obj-$(CONFIG_MAC802154) += mac802154/
-ifeq ($(CONFIG_NET),y)
obj-$(CONFIG_SYSCTL) += sysctl_net.o
-endif
obj-$(CONFIG_DNS_RESOLVER) += dns_resolver/
obj-$(CONFIG_CEPH_LIB) += ceph/
obj-$(CONFIG_BATMAN_ADV) += batman-adv/
--
2.27.0
next reply other threads:[~2021-01-25 23:21 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-01-25 23:16 Masahiro Yamada [this message]
2021-01-28 1:10 ` [PATCH 1/4] net: move CONFIG_NET guard to top Makefile patchwork-bot+netdevbpf
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