From: Catalin Marinas <catalin.marinas@arm.com>
Date: Mon, 7 Aug 2017 12:36:35 +0100
Subject: arm64: neon: Export kernel_neon_busy to loadable modules
Git-commit: 11cefd5ac25f242349994140a3bce3a20db0c751
Patch-mainline: v4.14-rc1
References: fate#325866
may_use_simd() can be invoked from loadable modules and it accesses
kernel_neon_busy. Make sure that the latter is exported.
Fixes: cb84d11e1625 ("arm64: neon: Remove support for nested or hardirq kernel-mode NEON")
Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
Signed-off-by: Mian Yousaf Kaukab <yousaf.kaukab@suse.com>
---
arch/arm64/kernel/fpsimd.c | 1 +
1 file changed, 1 insertion(+)
diff --git a/arch/arm64/kernel/fpsimd.c b/arch/arm64/kernel/fpsimd.c
index 138fcfaeadc1..9da4e636b328 100644
--- a/arch/arm64/kernel/fpsimd.c
+++ b/arch/arm64/kernel/fpsimd.c
@@ -255,6 +255,7 @@ void fpsimd_flush_task_state(struct task_struct *t)
#ifdef CONFIG_KERNEL_MODE_NEON
DEFINE_PER_CPU(bool, kernel_neon_busy);
+EXPORT_PER_CPU_SYMBOL(kernel_neon_busy);
/*
* Kernel-side NEON support functions
--
2.11.0