arm64/sve: Make fpsimd_bind_task_to_cpu() static

This function is not referenced outside fpsimd.c so can be static, making
it that little bit easier to follow what is called from where.
Signed-off-by: Mark Brown <broonie@kernel.org>
Link: https://lore.kernel.org/r/20210730165846.18558-1-broonie@kernel.orgReviewed-by: Dave Martin <Dave.Martin@arm.com>
Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>

arch/arm64/include/asm/fpsimd.h

@@ -45,7 +45,6 @@ extern void fpsimd_preserve_current_state(void);
 extern void fpsimd_restore_current_state(void);
 extern void fpsimd_update_current_state(struct user_fpsimd_state const *state);
 
-extern void fpsimd_bind_task_to_cpu(void);
 extern void fpsimd_bind_state_to_cpu(struct user_fpsimd_state *state,
 				     void *sve_state, unsigned int sve_vl);
 

arch/arm64/kernel/fpsimd.c

@@ -162,6 +162,8 @@ extern void __percpu *efi_sve_state;
 DEFINE_PER_CPU(bool, fpsimd_context_busy);
 EXPORT_PER_CPU_SYMBOL(fpsimd_context_busy);
 
+static void fpsimd_bind_task_to_cpu(void);
+
 static void __get_cpu_fpsimd_context(void)
 {
 	bool busy = __this_cpu_xchg(fpsimd_context_busy, true);
@@ -1112,7 +1114,7 @@ void fpsimd_signal_preserve_current_state(void)
  * The caller must have ownership of the cpu FPSIMD context before calling
  * this function.
  */
-void fpsimd_bind_task_to_cpu(void)
+static void fpsimd_bind_task_to_cpu(void)
 {
 	struct fpsimd_last_state_struct *last =
 		this_cpu_ptr(&fpsimd_last_state);