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authorTiezhu Yang <yangtiezhu@loongson.cn>2024-08-26 23:11:32 +0800
committerHuacai Chen <chenhuacai@loongson.cn>2024-08-26 23:11:32 +0800
commit80376323e2b6a4559f86b2b4d864848ac25cb054 (patch)
tree1ae955b9ef6e9e8de5bf061dd14d70b638b317d1 /arch
parent274ea3563e5ab9f468c15bfb9d2492803a66d9be (diff)
downloadlwn-80376323e2b6a4559f86b2b4d864848ac25cb054.tar.gz
lwn-80376323e2b6a4559f86b2b4d864848ac25cb054.zip
LoongArch: Add ifdefs to fix LSX and LASX related warnings
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: cb8a2ef0848c ("LoongArch: Add ORC stack unwinder support") Reported-by: kernel test robot <lkp@intel.com> Closes: https://lore.kernel.org/oe-kbuild-all/202408120955.qls5oNQY-lkp@intel.com/ Signed-off-by: Tiezhu Yang <yangtiezhu@loongson.cn> Signed-off-by: Huacai Chen <chenhuacai@loongson.cn>
Diffstat (limited to 'arch')
-rw-r--r--arch/loongarch/kernel/fpu.S4
-rw-r--r--arch/loongarch/kvm/switch.S4
2 files changed, 8 insertions, 0 deletions
diff --git a/arch/loongarch/kernel/fpu.S b/arch/loongarch/kernel/fpu.S
index 69a85f2479fb..6ab640101457 100644
--- a/arch/loongarch/kernel/fpu.S
+++ b/arch/loongarch/kernel/fpu.S
@@ -530,6 +530,10 @@ SYM_FUNC_END(_restore_lasx_context)
#ifdef CONFIG_CPU_HAS_LBT
STACK_FRAME_NON_STANDARD _restore_fp
+#ifdef CONFIG_CPU_HAS_LSX
STACK_FRAME_NON_STANDARD _restore_lsx
+#endif
+#ifdef CONFIG_CPU_HAS_LASX
STACK_FRAME_NON_STANDARD _restore_lasx
#endif
+#endif
diff --git a/arch/loongarch/kvm/switch.S b/arch/loongarch/kvm/switch.S
index 80e988985a6a..0c292f818492 100644
--- a/arch/loongarch/kvm/switch.S
+++ b/arch/loongarch/kvm/switch.S
@@ -277,6 +277,10 @@ SYM_DATA(kvm_enter_guest_size, .quad kvm_enter_guest_end - kvm_enter_guest)
#ifdef CONFIG_CPU_HAS_LBT
STACK_FRAME_NON_STANDARD kvm_restore_fpu
+#ifdef CONFIG_CPU_HAS_LSX
STACK_FRAME_NON_STANDARD kvm_restore_lsx
+#endif
+#ifdef CONFIG_CPU_HAS_LASX
STACK_FRAME_NON_STANDARD kvm_restore_lasx
#endif
+#endif