sh: about the warnings for "overflow in branch to syscall_exit_work"

Hello Maintainers:

I find some warnings for sh, can they cause real world issue ?

It is also found by Geert Uytterhoeven, please ref:
http://lkml.indiana.edu/hypermail/linux/kernel/1301.3/02181.html

The related warnings (with allmodconfig):

AS arch/sh/kernel/cpu/sh2/entry.o
arch/sh/kernel/cpu/sh2/../../entry-common.S: Assembler messages:
arch/sh/kernel/cpu/sh2/../../entry-common.S:89: Warning: overflow in branch to __restore_all; converted into longer instruction sequence arch/sh/kernel/cpu/sh2/../../entry-common.S:210: Warning: overflow in branch to syscall_call; converted into longer instruction sequence arch/sh/kernel/cpu/sh2/../../entry-common.S:349: Warning: overflow in branch to syscall_trace_entry; converted into longer instruction sequence arch/sh/kernel/cpu/sh2/../../entry-common.S:351: Warning: overflow in branch to syscall_trace_entry; converted into longer instruction sequence arch/sh/kernel/cpu/sh2/../../entry-common.S:375: Warning: overflow in branch to syscall_exit_work; converted into longer instruction sequence arch/sh/kernel/cpu/sh2/../../entry-common.S:378: Warning: overflow in branch to syscall_exit_work; converted into longer instruction sequence

For me, I guess it can cause real world issue (and it seems a "long time existence" issue)

Welcome any members suggestions or completions.

Thanks.
--
Chen Gang.