All the code in early_serial_console.c gets compiled out if
!CONFIG_EARLY_PRINTK, but early_serial_console.o itself still gets
compiled in. Eliminate it from the compile entirely in that case.
This does not change the generated code at all, in either case.
Signed-off-by: Josh Triplett <j...@joshtriplett.org>
---
arch/x86/boot/compressed/Makefile | 3 ++-
arch/x86/boot/compressed/early_serial_console.c | 4 ----
2 files changed, 2 insertions(+), 5 deletions(-)
diff --git a/arch/x86/boot/compressed/Makefile
b/arch/x86/boot/compressed/Makefile
index 42e738d..704f58a 100644
--- a/arch/x86/boot/compressed/Makefile
+++ b/arch/x86/boot/compressed/Makefile
@@ -27,9 +27,10 @@ hostprogs-y := mkpiggy
HOST_EXTRACFLAGS += -I$(srctree)/tools/include
vmlinux-objs-y := $(obj)/vmlinux.lds $(obj)/head_$(BITS).o $(obj)/misc.o \
- $(obj)/string.o $(obj)/cmdline.o $(obj)/early_serial_console.o \
+ $(obj)/string.o $(obj)/cmdline.o \
$(obj)/piggy.o $(obj)/cpuflags.o
+vmlinux-objs-$(CONFIG_EARLY_PRINTK) += $(obj)/early_serial_console.o
vmlinux-objs-$(CONFIG_RANDOMIZE_BASE) += $(obj)/aslr.o
$(obj)/eboot.o: KBUILD_CFLAGS += -fshort-wchar -mno-red-zone
diff --git a/arch/x86/boot/compressed/early_serial_console.c
b/arch/x86/boot/compressed/early_serial_console.c
index d3d003c..261e81f 100644
--- a/arch/x86/boot/compressed/early_serial_console.c
+++ b/arch/x86/boot/compressed/early_serial_console.c
@@ -1,9 +1,5 @@
#include "misc.h"
-#ifdef CONFIG_EARLY_PRINTK
-
int early_serial_base;
#include "../early_serial_console.c"
-
-#endif
--
1.9.0
--
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