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Message-Id: <1510072307-16819-3-git-send-email-yamada.masahiro@socionext.com>
Date: Wed, 8 Nov 2017 01:31:47 +0900
From: Masahiro Yamada <yamada.masahiro@...ionext.com>
To: linux-kbuild@...r.kernel.org, Sam Ravnborg <sam@...nborg.org>
Cc: Rob Herring <robh+dt@...nel.org>,
Mark Rutland <mark.rutland@....com>,
Pantelis Antoniou <pantelis.antoniou@...sulko.com>,
devicetree@...r.kernel.org, Arnd Bergmann <arnd@...db.de>,
linux-mips@...ux-mips.org, linux-kernel@...r.kernel.org,
Michal Marek <michal.lkml@...kovi.net>,
Masahiro Yamada <yamada.masahiro@...ionext.com>,
Ralf Baechle <ralf@...ux-mips.org>,
Alexei Starovoitov <ast@...nel.org>, netdev@...r.kernel.org,
Russell King <linux@...linux.org.uk>,
Daniel Borkmann <daniel@...earbox.net>,
linux-arm-kernel@...ts.infradead.org
Subject: [PATCH 2/2] kbuild: remove all dummy assignments to obj-
Now kbuild core scripts create empty built-in.o where necessary.
Remove "obj- := dummy.o" tricks.
Signed-off-by: Masahiro Yamada <yamada.masahiro@...ionext.com>
---
arch/arm/mach-uniphier/Makefile | 1 -
arch/mips/boot/dts/brcm/Makefile | 3 ---
arch/mips/boot/dts/cavium-octeon/Makefile | 3 ---
arch/mips/boot/dts/img/Makefile | 3 ---
arch/mips/boot/dts/ingenic/Makefile | 3 ---
arch/mips/boot/dts/lantiq/Makefile | 3 ---
arch/mips/boot/dts/mti/Makefile | 3 ---
arch/mips/boot/dts/netlogic/Makefile | 3 ---
arch/mips/boot/dts/ni/Makefile | 3 ---
arch/mips/boot/dts/pic32/Makefile | 3 ---
arch/mips/boot/dts/qca/Makefile | 3 ---
arch/mips/boot/dts/ralink/Makefile | 3 ---
arch/mips/boot/dts/xilfpga/Makefile | 3 ---
firmware/Makefile | 3 ---
samples/bpf/Makefile | 3 ---
samples/hidraw/Makefile | 3 ---
samples/seccomp/Makefile | 3 ---
samples/sockmap/Makefile | 3 ---
samples/statx/Makefile | 3 ---
samples/uhid/Makefile | 3 ---
20 files changed, 58 deletions(-)
diff --git a/arch/arm/mach-uniphier/Makefile b/arch/arm/mach-uniphier/Makefile
index 6bea3d3..e69de29 100644
--- a/arch/arm/mach-uniphier/Makefile
+++ b/arch/arm/mach-uniphier/Makefile
@@ -1 +0,0 @@
-obj- += dummy.o
diff --git a/arch/mips/boot/dts/brcm/Makefile b/arch/mips/boot/dts/brcm/Makefile
index bacb131..fcf68a2 100644
--- a/arch/mips/boot/dts/brcm/Makefile
+++ b/arch/mips/boot/dts/brcm/Makefile
@@ -34,6 +34,3 @@ dtb-$(CONFIG_DT_NONE) += \
bcm97435svmb.dtb
obj-y += $(patsubst %.dtb, %.dtb.o, $(dtb-y))
-
-# Force kbuild to make empty built-in.o if necessary
-obj- += dummy.o
diff --git a/arch/mips/boot/dts/cavium-octeon/Makefile b/arch/mips/boot/dts/cavium-octeon/Makefile
index e9592a9..a857b4c 100644
--- a/arch/mips/boot/dts/cavium-octeon/Makefile
+++ b/arch/mips/boot/dts/cavium-octeon/Makefile
@@ -1,6 +1,3 @@
dtb-$(CONFIG_CAVIUM_OCTEON_SOC) += octeon_3xxx.dtb octeon_68xx.dtb
obj-y += $(patsubst %.dtb, %.dtb.o, $(dtb-y))
-
-# Force kbuild to make empty built-in.o if necessary
-obj- += dummy.o
diff --git a/arch/mips/boot/dts/img/Makefile b/arch/mips/boot/dts/img/Makefile
index a46d773..17dedb7 100644
--- a/arch/mips/boot/dts/img/Makefile
+++ b/arch/mips/boot/dts/img/Makefile
@@ -2,6 +2,3 @@ dtb-$(CONFIG_FIT_IMAGE_FDT_BOSTON) += boston.dtb
dtb-$(CONFIG_MACH_PISTACHIO) += pistachio_marduk.dtb
obj-$(CONFIG_MACH_PISTACHIO) += pistachio_marduk.dtb.o
-
-# Force kbuild to make empty built-in.o if necessary
-obj- += dummy.o
diff --git a/arch/mips/boot/dts/ingenic/Makefile b/arch/mips/boot/dts/ingenic/Makefile
index ddd0faf..f2e516c 100644
--- a/arch/mips/boot/dts/ingenic/Makefile
+++ b/arch/mips/boot/dts/ingenic/Makefile
@@ -2,6 +2,3 @@ dtb-$(CONFIG_JZ4740_QI_LB60) += qi_lb60.dtb
dtb-$(CONFIG_JZ4780_CI20) += ci20.dtb
obj-y += $(patsubst %.dtb, %.dtb.o, $(dtb-y))
-
-# Force kbuild to make empty built-in.o if necessary
-obj- += dummy.o
diff --git a/arch/mips/boot/dts/lantiq/Makefile b/arch/mips/boot/dts/lantiq/Makefile
index 586b1c9..fed59e0 100644
--- a/arch/mips/boot/dts/lantiq/Makefile
+++ b/arch/mips/boot/dts/lantiq/Makefile
@@ -1,6 +1,3 @@
dtb-$(CONFIG_DT_EASY50712) += easy50712.dtb
obj-y += $(patsubst %.dtb, %.dtb.o, $(dtb-y))
-
-# Force kbuild to make empty built-in.o if necessary
-obj- += dummy.o
diff --git a/arch/mips/boot/dts/mti/Makefile b/arch/mips/boot/dts/mti/Makefile
index faf7ac4..35cf12b 100644
--- a/arch/mips/boot/dts/mti/Makefile
+++ b/arch/mips/boot/dts/mti/Makefile
@@ -2,6 +2,3 @@ dtb-$(CONFIG_MIPS_MALTA) += malta.dtb
dtb-$(CONFIG_LEGACY_BOARD_SEAD3) += sead3.dtb
obj-y += $(patsubst %.dtb, %.dtb.o, $(dtb-y))
-
-# Force kbuild to make empty built-in.o if necessary
-obj- += dummy.o
diff --git a/arch/mips/boot/dts/netlogic/Makefile b/arch/mips/boot/dts/netlogic/Makefile
index 77ffb30..84a38eb 100644
--- a/arch/mips/boot/dts/netlogic/Makefile
+++ b/arch/mips/boot/dts/netlogic/Makefile
@@ -5,6 +5,3 @@ dtb-$(CONFIG_DT_XLP_GVP) += xlp_gvp.dtb
dtb-$(CONFIG_DT_XLP_RVP) += xlp_rvp.dtb
obj-y += $(patsubst %.dtb, %.dtb.o, $(dtb-y))
-
-# Force kbuild to make empty built-in.o if necessary
-obj- += dummy.o
diff --git a/arch/mips/boot/dts/ni/Makefile b/arch/mips/boot/dts/ni/Makefile
index 6cd9c60..9e2c9fa 100644
--- a/arch/mips/boot/dts/ni/Makefile
+++ b/arch/mips/boot/dts/ni/Makefile
@@ -1,4 +1 @@
dtb-$(CONFIG_FIT_IMAGE_FDT_NI169445) += 169445.dtb
-
-# Force kbuild to make empty built-in.o if necessary
-obj- += dummy.o
diff --git a/arch/mips/boot/dts/pic32/Makefile b/arch/mips/boot/dts/pic32/Makefile
index 5a08e48..6ecc249 100644
--- a/arch/mips/boot/dts/pic32/Makefile
+++ b/arch/mips/boot/dts/pic32/Makefile
@@ -4,6 +4,3 @@ dtb-$(CONFIG_DTB_PIC32_NONE) += \
pic32mzda_sk.dtb
obj-y += $(patsubst %.dtb, %.dtb.o, $(dtb-y))
-
-# Force kbuild to make empty built-in.o if necessary
-obj- += dummy.o
diff --git a/arch/mips/boot/dts/qca/Makefile b/arch/mips/boot/dts/qca/Makefile
index 181db5d..ad6429b 100644
--- a/arch/mips/boot/dts/qca/Makefile
+++ b/arch/mips/boot/dts/qca/Makefile
@@ -4,6 +4,3 @@ dtb-$(CONFIG_ATH79) += ar9331_dpt_module.dtb
dtb-$(CONFIG_ATH79) += ar9331_dragino_ms14.dtb
dtb-$(CONFIG_ATH79) += ar9331_omega.dtb
dtb-$(CONFIG_ATH79) += ar9331_tl_mr3020.dtb
-
-# Force kbuild to make empty built-in.o if necessary
-obj- += dummy.o
diff --git a/arch/mips/boot/dts/ralink/Makefile b/arch/mips/boot/dts/ralink/Makefile
index 7b64654..baaea4a 100644
--- a/arch/mips/boot/dts/ralink/Makefile
+++ b/arch/mips/boot/dts/ralink/Makefile
@@ -6,6 +6,3 @@ dtb-$(CONFIG_DTB_OMEGA2P) += omega2p.dtb
dtb-$(CONFIG_DTB_VOCORE2) += vocore2.dtb
obj-y += $(patsubst %.dtb, %.dtb.o, $(dtb-y))
-
-# Force kbuild to make empty built-in.o if necessary
-obj- += dummy.o
diff --git a/arch/mips/boot/dts/xilfpga/Makefile b/arch/mips/boot/dts/xilfpga/Makefile
index 77c8096..53f755f 100644
--- a/arch/mips/boot/dts/xilfpga/Makefile
+++ b/arch/mips/boot/dts/xilfpga/Makefile
@@ -1,6 +1,3 @@
dtb-$(CONFIG_XILFPGA_NEXYS4DDR) += nexys4ddr.dtb
obj-y += $(patsubst %.dtb, %.dtb.o, $(dtb-y))
-
-# Force kbuild to make empty built-in.o if necessary
-obj- += dummy.o
diff --git a/firmware/Makefile b/firmware/Makefile
index fa08088..6524be1 100644
--- a/firmware/Makefile
+++ b/firmware/Makefile
@@ -58,6 +58,3 @@ endif
targets := $(patsubst $(obj)/%,%, \
$(shell find $(obj) -name \*.gen.S 2>/dev/null))
-# Without this, built-in.o won't be created when it's empty, and the
-# final vmlinux link will fail.
-obj- := dummy
diff --git a/samples/bpf/Makefile b/samples/bpf/Makefile
index cf17c79..4ea6f75 100644
--- a/samples/bpf/Makefile
+++ b/samples/bpf/Makefile
@@ -1,6 +1,3 @@
-# kbuild trick to avoid linker error. Can be omitted if a module is built.
-obj- := dummy.o
-
# List of programs to build
hostprogs-y := test_lru_dist
hostprogs-y += sock_example
diff --git a/samples/hidraw/Makefile b/samples/hidraw/Makefile
index a9ab961..329da9c 100644
--- a/samples/hidraw/Makefile
+++ b/samples/hidraw/Makefile
@@ -1,6 +1,3 @@
-# kbuild trick to avoid linker error. Can be omitted if a module is built.
-obj- := dummy.o
-
# List of programs to build
hostprogs-y := hid-example
diff --git a/samples/seccomp/Makefile b/samples/seccomp/Makefile
index bf7cc6b..5c6baac 100644
--- a/samples/seccomp/Makefile
+++ b/samples/seccomp/Makefile
@@ -1,6 +1,3 @@
-# kbuild trick to avoid linker error. Can be omitted if a module is built.
-obj- := dummy.o
-
hostprogs-$(CONFIG_SAMPLE_SECCOMP) := bpf-fancy dropper bpf-direct
HOSTCFLAGS_bpf-fancy.o += -I$(objtree)/usr/include
diff --git a/samples/sockmap/Makefile b/samples/sockmap/Makefile
index 9291ab8..73f1da4 100644
--- a/samples/sockmap/Makefile
+++ b/samples/sockmap/Makefile
@@ -1,6 +1,3 @@
-# kbuild trick to avoid linker error. Can be omitted if a module is built.
-obj- := dummy.o
-
# List of programs to build
hostprogs-y := sockmap
diff --git a/samples/statx/Makefile b/samples/statx/Makefile
index 1f80a3d..59df7c2 100644
--- a/samples/statx/Makefile
+++ b/samples/statx/Makefile
@@ -1,6 +1,3 @@
-# kbuild trick to avoid linker error. Can be omitted if a module is built.
-obj- := dummy.o
-
# List of programs to build
hostprogs-$(CONFIG_SAMPLE_STATX) := test-statx
diff --git a/samples/uhid/Makefile b/samples/uhid/Makefile
index c95a696..8d7fd61 100644
--- a/samples/uhid/Makefile
+++ b/samples/uhid/Makefile
@@ -1,6 +1,3 @@
-# kbuild trick to avoid linker error. Can be omitted if a module is built.
-obj- := dummy.o
-
# List of programs to build
hostprogs-y := uhid-example
--
2.7.4
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