Re: arch/arm64/kernel/syscall.c:164:6: warning: no previous prototype for 'do_el0_svc_compat'

[Mark Rutland]

On Thu, Jan 14, 2021 at 10:41:59AM +0800, kernel test robot wrote:
> All warnings (new ones prefixed by >>):
> 
>    arch/arm64/kernel/syscall.c:157:6: warning: no previous prototype for 'do_el0_svc' [-Wmissing-prototypes]
>      157 | void do_el0_svc(struct pt_regs *regs)
>          |      ^~~~~~~~~~
> >> arch/arm64/kernel/syscall.c:164:6: warning: no previous prototype for 'do_el0_svc_compat' [-Wmissing-prototypes]
>      164 | void do_el0_svc_compat(struct pt_regs *regs)
>          |      ^~~~~~~~~~~~~~~~~

Looks like this is down to syscall.c not including <asm/exception.h>,
since do_el0_svc_compat() has a prototype there.

I'll spin a patch...

Mark.