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-rw-r--r--arch/arc/include/asm/entry.h13
1 files changed, 1 insertions, 12 deletions
diff --git a/arch/arc/include/asm/entry.h b/arch/arc/include/asm/entry.h
index 72a7ed47117a..de01bc842a9a 100644
--- a/arch/arc/include/asm/entry.h
+++ b/arch/arc/include/asm/entry.h
@@ -422,18 +422,7 @@
* Save scratch regs for sys calls
*-------------------------------------------------------------*/
.macro SAVE_ALL_TRAP
- /*
- * Setup pt_regs->orig_r8.
- * Encode syscall number (r8) in upper short word of event type (r9)
- * N.B. #1: This is already endian safe (see ptrace.h)
- * #2: Only r9 can be used as scratch as it is already clobbered
- * and it's contents are no longer needed by the latter part
- * of exception prologue
- */
- lsl r9, r8, 16
- or r9, r9, orig_r8_IS_SCALL
-
- SAVE_ALL_EXCEPTION r9
+ SAVE_ALL_EXCEPTION orig_r8_IS_SCALL
.endm
/*--------------------------------------------------------------