From: Jackie Liu <redacted>

mach/loongson64 fails to build when the FPU support is disabled:

arch/mips/loongson64/cop2-ex.c:45:15: error: implicit declaration of function ‘__is_fpu_owner’; did you mean ‘is_fpu_owner’? [-Werror=implicit-function-declaration]
arch/mips/loongson64/cop2-ex.c:98:30: error: ‘struct thread_struct’ has no member named ‘fpu’
arch/mips/loongson64/cop2-ex.c:99:30: error: ‘struct thread_struct’ has no member named ‘fpu’
arch/mips/loongson64/cop2-ex.c:131:43: error: ‘struct thread_struct’ has no member named ‘fpu’
arch/mips/loongson64/cop2-ex.c:137:38: error: ‘struct thread_struct’ has no member named ‘fpu’
arch/mips/loongson64/cop2-ex.c:203:30: error: ‘struct thread_struct’ has no member named ‘fpu’
arch/mips/loongson64/cop2-ex.c:219:30: error: ‘struct thread_struct’ has no member named ‘fpu’
arch/mips/loongson64/cop2-ex.c:283:38: error: ‘struct thread_struct’ has no member named ‘fpu’
arch/mips/loongson64/cop2-ex.c:301:38: error: ‘struct thread_struct’ has no member named ‘fpu’

Fixes: ef2f826c8f2f ("MIPS: Loongson-3: Enable the COP2 usage")
Suggested-by: Huacai Chen <chenhuacai@kernel.org>
Reviewed-by: Huacai Chen <chenhuacai@kernel.org>
Reported-by: k2ci robot <redacted>
Signed-off-by: Jackie Liu <redacted>
---
  v1->v2:
  move MIPS_FP_SUPPORT from MACH_LOONGSON64 to CPU_LOONGSON64

  v2->v3:
  add Huacai Chen [off-list ref]'s suggest label.

  v3->v4:
  update Huacai Chen's email address.

  arch/mips/Kconfig | 1 +
  1 file changed, 1 insertion(+)

diff --git a/arch/mips/Kconfig b/arch/mips/Kconfig
index 24e374266fdc..aea3aa16a38e 100644
--- a/arch/mips/Kconfig
+++ b/arch/mips/Kconfig

@@ -1408,6 +1408,7 @@ config CPU_LOONGSON64
  	select MIPS_ASID_BITS_VARIABLE
  	select MIPS_PGD_C0_CONTEXT
  	select MIPS_L1_CACHE_SHIFT_6
+	select MIPS_FP_SUPPORT
  	select GPIOLIB
  	select SWIOTLB
  	select HAVE_KVM