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-rw-r--r--arch/powerpc/math-emu/stfd.c21
1 files changed, 21 insertions, 0 deletions
diff --git a/arch/powerpc/math-emu/stfd.c b/arch/powerpc/math-emu/stfd.c
new file mode 100644
index 0000000000..463d2f0832
--- /dev/null
+++ b/arch/powerpc/math-emu/stfd.c
@@ -0,0 +1,21 @@
+// SPDX-License-Identifier: GPL-2.0
+#include <linux/types.h>
+#include <linux/errno.h>
+#include <linux/uaccess.h>
+
+int
+stfd(void *frS, void *ea)
+{
+#if 0
+#ifdef DEBUG
+ printk("%s: S %p, ea %p: ", __func__, frS, ea);
+ dump_double(frS);
+ printk("\n");
+#endif
+#endif
+
+ if (copy_to_user(ea, frS, sizeof(double)))
+ return -EFAULT;
+
+ return 0;
+}