This is a note to let you know that I've just added the patch titled MIPS: loongson64: make CPU_LOONGSON64 depends on MIPS_FP_SUPPORT to the 4.14-stable tree which can be found at: http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary The filename of the patch is: mips-loongson64-make-cpu_loongson64-depends-on-mips_.patch and it can be found in the queue-4.14 subdirectory. If you, or anyone else, feels it should not be added to the stable tree, please let <stable@xxxxxxxxxxxxxxx> know about it. commit eb634a878c9605555edeacba4f5c82169ff51155 Author: Jackie Liu <liuyun01@xxxxxxxxxx> Date: Mon Sep 13 14:19:08 2021 +0800 MIPS: loongson64: make CPU_LOONGSON64 depends on MIPS_FP_SUPPORT [ Upstream commit 7f3b3c2bfa9c93ab9b5595543496f570983dc330 ] 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@xxxxxxxxxx> Reviewed-by: Huacai Chen <chenhuacai@xxxxxxxxxx> Reported-by: k2ci robot <kernel-bot@xxxxxxxxxx> Signed-off-by: Jackie Liu <liuyun01@xxxxxxxxxx> Signed-off-by: Thomas Bogendoerfer <tsbogend@xxxxxxxxxxxxxxxx> Signed-off-by: Sasha Levin <sashal@xxxxxxxxxx> diff --git a/arch/mips/Kconfig b/arch/mips/Kconfig index 49c540790fd2d..8e77149d658fc 100644 --- a/arch/mips/Kconfig +++ b/arch/mips/Kconfig @@ -1383,6 +1383,7 @@ config CPU_LOONGSON3 select WEAK_REORDERING_BEYOND_LLSC select MIPS_PGD_C0_CONTEXT select MIPS_L1_CACHE_SHIFT_6 + select MIPS_FP_SUPPORT select GPIOLIB help The Loongson 3 processor implements the MIPS64R2 instruction