CHK     include/linux/version.h
  CHK     include/generated/utsrelease.h
make[1]: 'include/generated/mach-types.h' is up to date.
  CALL    scripts/checksyscalls.sh
  CHK     include/generated/compile.h
  CC      arch/arm/mm/dma-mapping.o
  LD      arch/arm/common/built-in.o
  LD      arch/arm/net/built-in.o
  CC      arch/arm/kernel/return_address.o
  LD      init/mounts.o
init/do_mounts_rd.o: In function `return_address':
/home/alex/git/linux-sunxi/arch/arm/include/asm/ftrace.h:51: multiple definition of `return_address'
init/do_mounts.o:/home/alex/git/linux-sunxi/arch/arm/include/asm/ftrace.h:51: first defined here
init/do_mounts_initrd.o: In function `return_address':
/home/alex/git/linux-sunxi/arch/arm/include/asm/ftrace.h:51: multiple definition of `return_address'
init/do_mounts.o:/home/alex/git/linux-sunxi/arch/arm/include/asm/ftrace.h:51: first defined here
  CC      arch/arm/mach-sun5i/clock/ccmu/ccm_mod_clk.o
scripts/Makefile.build:429: recipe for target 'init/mounts.o' failed
make[1]: *** [init/mounts.o] Error 1
Makefile:947: recipe for target 'init' failed
make: *** [init] Error 2
make: *** Waiting for unfinished jobs....
  CC      arch/arm/mach-sun5i/clock/clock.o
arch/arm/kernel/return_address.c:62:2: warning: #warning "TODO: return_address should use unwind tables" [-Wcpp]
 #warning "TODO: return_address should use unwind tables"
  ^
arch/arm/kernel/return_address.c:65:7: error: redefinition of ‘return_address’
 void *return_address(unsigned int level)
       ^
In file included from include/linux/ftrace.h:19:0,
                 from arch/arm/kernel/return_address.c:12:
/home/alex/git/linux-sunxi/arch/arm/include/asm/ftrace.h:48:21: note: previous definition of ‘return_address’ was here
 extern inline void *return_address(unsigned int level)
                     ^
scripts/Makefile.build:307: recipe for target 'arch/arm/kernel/return_address.o' failed
make[1]: *** [arch/arm/kernel/return_address.o] Error 1
Makefile:947: recipe for target 'arch/arm/kernel' failed
make: *** [arch/arm/kernel] Error 2
  CC      arch/arm/mach-sun5i/clock/ccmu/ccm_sys_clk.o
  CC      arch/arm/mm/extable.o
  CC      arch/arm/mm/fault.o
  CC      arch/arm/mach-sun5i/clock/ccmu/ccm.o
  CC      arch/arm/mach-sun5i/clock/ccmu/pll_cfg_tbl.o
  CC      arch/arm/mm/init.o
  CC      arch/arm/mach-sun5i/clock/ccmu/ccu_dbg.o
  CC      arch/arm/mm/iomap.o
  CC      arch/arm/mm/fault-armv.o
  CC      arch/arm/mm/flush.o
  CC      arch/arm/mm/idmap.o
  CC      arch/arm/mm/ioremap.o
  CC      arch/arm/mm/mmap.o
  LD      arch/arm/mach-sun5i/clock/ccmu/built-in.o
  LD      arch/arm/mach-sun5i/clock/built-in.o
  LD      arch/arm/mach-sun5i/built-in.o
  CC      arch/arm/mm/pgd.o
  CC      arch/arm/mm/mmu.o
  CC      arch/arm/mm/vmregion.o
  CC      arch/arm/mm/proc-syms.o
  CC      arch/arm/mm/alignment.o
  CC      arch/arm/mm/highmem.o
arch/arm/mm/alignment.c: In function ‘do_alignment’:
arch/arm/mm/alignment.c:327:15: warning: ‘offset.un’ may be used uninitialized in this function [-Wmaybe-uninitialized]
   offset.un = -offset.un;
               ^
arch/arm/mm/alignment.c:749:21: note: ‘offset.un’ was declared here
  union offset_union offset;
                     ^
  AS      arch/arm/mm/abort-ev7.o
  AS      arch/arm/mm/pabort-v7.o
  AS      arch/arm/mm/cache-v7.o
  CC      arch/arm/mm/copypage-v6.o
  CC      arch/arm/mm/context.o
  AS      arch/arm/mm/tlb-v7.o
  AS      arch/arm/mm/proc-v7.o
  LD      arch/arm/mm/built-in.o