MIPS: Set trap_no field in thread_struct on exception.
This reverts commit 7281cd22973008a782860e48ed8d85d00204168c and adds
actual functionality to use the field.
diff --git a/arch/mips/kernel/asm-offsets.c b/arch/mips/kernel/asm-offsets.c
index 3706091b..154e203 100644
--- a/arch/mips/kernel/asm-offsets.c
+++ b/arch/mips/kernel/asm-offsets.c
@@ -128,6 +128,7 @@
thread.cp0_baduaddr);
OFFSET(THREAD_ECODE, task_struct, \
thread.error_code);
+ OFFSET(THREAD_TRAPNO, task_struct, thread.trap_nr);
BLANK();
}