Messages in this thread Patch in this message | | | Date | Mon, 10 Mar 2014 13:33:44 -0700 | From | Josh Triplett <> | Subject | [PATCH 3/3] x86, boot: Don't compile early_serial_console.c when !CONFIG_EARLY_PRINTK |
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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 <josh@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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