arm64: Set UTS_MACHINE in the Makefile

The make rpm target depends on proper UTS_MACHINE definition.  Also, use
the variable in arch/arm64/kernel/setup.c, so that it's not accidentally
removed in the future.

Reported-and-tested-by: Fabian Vogt <fvogt@suse.com>
Signed-off-by: Michal Marek <mmarek@suse.com>
Signed-off-by: Will Deacon <will.deacon@arm.com>

3 files changed, 5 insertions, 1 deletions

diff --git a/arch/arm64/Makefile b/arch/arm64/Makefile
index 0b53c752f23f..ab51aed6b6c1 100644
--- a/arch/arm64/Makefile
+++ b/arch/arm64/Makefile
@@ -46,10 +46,12 @@ ifeq ($(CONFIG_CPU_BIG_ENDIAN), y)
 KBUILD_CPPFLAGS += -mbig-endian
 AS              += -EB
 LD              += -EB
+UTS_MACHINE     := aarch64_be
 else
 KBUILD_CPPFLAGS += -mlittle-endian
 AS              += -EL
 LD              += -EL
+UTS_MACHINE     := aarch64
 endif
 
 CHECKFLAGS      += -D__aarch64__
diff --git a/arch/arm64/kernel/Makefile b/arch/arm64/kernel/Makefile
index 14f7b651c787..7d66bbaafc0c 100644
--- a/arch/arm64/kernel/Makefile
+++ b/arch/arm64/kernel/Makefile
@@ -10,6 +10,8 @@ CFLAGS_REMOVE_ftrace.o = -pg
 CFLAGS_REMOVE_insn.o = -pg
 CFLAGS_REMOVE_return_address.o = -pg
 
+CFLAGS_setup.o = -DUTS_MACHINE='"$(UTS_MACHINE)"'
+
 # Object file lists.
 arm64-obj-y             := debug-monitors.o entry.o irq.o fpsimd.o              \
                            entry-fpsimd.o process.o ptrace.o setup.o signal.o   \
diff --git a/arch/arm64/kernel/setup.c b/arch/arm64/kernel/setup.c
index 514b4e3ba029..f534f492a268 100644
--- a/arch/arm64/kernel/setup.c
+++ b/arch/arm64/kernel/setup.c
@@ -233,7 +233,7 @@ void __init setup_arch(char **cmdline_p)
 {
         pr_info("Boot CPU: AArch64 Processor [%08x]\n", read_cpuid_id());
 
-        sprintf(init_utsname()->machine, ELF_PLATFORM);
+        sprintf(init_utsname()->machine, UTS_MACHINE);
         init_mm.start_code = (unsigned long) _text;
         init_mm.end_code   = (unsigned long) _etext;
         init_mm.end_data   = (unsigned long) _edata;