• Tiezhu Yang's avatar
    LoongArch: Add ifdefs to fix LSX and LASX related warnings · 80376323
    Tiezhu Yang authored
    There exist some warnings when building kernel if CONFIG_CPU_HAS_LBT is
    set but CONFIG_CPU_HAS_LSX and CONFIG_CPU_HAS_LASX are not set. In this
    case, there are no definitions of _restore_lsx & _restore_lasx and there
    are also no definitions of kvm_restore_lsx & kvm_restore_lasx in fpu.S
    and switch.S respectively, just add some ifdefs to fix these warnings.
    
      AS      arch/loongarch/kernel/fpu.o
    arch/loongarch/kernel/fpu.o: warning: objtool: unexpected relocation symbol type in .rela.discard.func_stack_frame_non_standard: 0
    arch/loongarch/kernel/fpu.o: warning: objtool: unexpected relocation symbol type in .rela.discard.func_stack_frame_non_standard: 0
    
      AS [M]  arch/loongarch/kvm/switch.o
    arch/loongarch/kvm/switch.o: warning: objtool: unexpected relocation symbol type in .rela.discard.func_stack_frame_non_standard: 0
    arch/loongarch/kvm/switch.o: warning: objtool: unexpected relocation symbol type in .rela.discard.func_stack_frame_non_standard: 0
    
      MODPOST Module.symvers
    ERROR: modpost: "kvm_restore_lsx" [arch/loongarch/kvm/kvm.ko] undefined!
    ERROR: modpost: "kvm_restore_lasx" [arch/loongarch/kvm/kvm.ko] undefined!
    
    Cc: stable@vger.kernel.org # 6.9+
    Fixes: cb8a2ef0 ("LoongArch: Add ORC stack unwinder support")
    Reported-by: default avatarkernel test robot <lkp@intel.com>
    Closes: https://lore.kernel.org/oe-kbuild-all/202408120955.qls5oNQY-lkp@intel.com/Signed-off-by: default avatarTiezhu Yang <yangtiezhu@loongson.cn>
    Signed-off-by: default avatarHuacai Chen <chenhuacai@loongson.cn>
    80376323
switch.S 7.15 KB