There are some empty trap_init() in different ARCHs, introduce
a new weak trap_init() function to cleanup them.
Cc: Vineet Gupta<vgupta@xxxxxxxxxx>
Cc: Russell King<linux@xxxxxxxxxxxxxxx>
Cc: Yoshinori Sato<ysato@xxxxxxxxxxxxxxxxxxxx>
Cc: Ley Foon Tan<ley.foon.tan@xxxxxxxxx>
Cc: Jonas Bonn<jonas@xxxxxxxxxxxx>
Cc: Stefan Kristiansson<stefan.kristiansson@xxxxxxxxxxxxx>
Cc: Stafford Horne<shorne@xxxxxxxxx>
Cc: James E.J. Bottomley<James.Bottomley@xxxxxxxxxxxxxxxxxxxxx>
Cc: Helge Deller<deller@xxxxxx>
Cc: Michael Ellerman<mpe@xxxxxxxxxxxxxx>
Cc: Benjamin Herrenschmidt<benh@xxxxxxxxxxxxxxxxxxx>
Cc: Paul Mackerras<paulus@xxxxxxxxx>
Cc: Paul Walmsley<palmerdabbelt@xxxxxxxxxx>
Cc: Jeff Dike<jdike@xxxxxxxxxxx>
Cc: Richard Weinberger<richard@xxxxxx>
Cc: Anton Ivanov<anton.ivanov@xxxxxxxxxxxxxxxxxx>
Cc: Andrew Morton<akpm@xxxxxxxxxxxxxxxxxxxx>
Signed-off-by: Kefeng Wang<wangkefeng.wang@xxxxxxxxxx>
---
arch/arc/kernel/traps.c | 5 -----