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-rw-r--r--arch/xtensa/kernel/coprocessor.S24
1 files changed, 0 insertions, 24 deletions
diff --git a/arch/xtensa/kernel/coprocessor.S b/arch/xtensa/kernel/coprocessor.S
index 6911e384f608..3a98503ad11a 100644
--- a/arch/xtensa/kernel/coprocessor.S
+++ b/arch/xtensa/kernel/coprocessor.S
@@ -26,30 +26,6 @@
#include <asm/signal.h>
#include <asm/tlbflush.h>
-/*
- * Entry condition:
- *
- * a0: trashed, original value saved on stack (PT_AREG0)
- * a1: a1
- * a2: new stack pointer, original in DEPC
- * a3: a3
- * depc: a2, original value saved on stack (PT_DEPC)
- * excsave_1: dispatch table
- *
- * PT_DEPC >= VALID_DOUBLE_EXCEPTION_ADDRESS: double exception, DEPC
- * < VALID_DOUBLE_EXCEPTION_ADDRESS: regular exception
- */
-
-/* IO protection is currently unsupported. */
-
-ENTRY(fast_io_protect)
-
- wsr a0, excsave1
- movi a0, unrecoverable_exception
- callx0 a0
-
-ENDPROC(fast_io_protect)
-
#if XTENSA_HAVE_COPROCESSORS
/*