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Re: [PATCH 04/65] x86/hypercall: Annotate fnptr targets


  • To: Andrew Cooper <andrew.cooper3@xxxxxxxxxx>
  • From: Jan Beulich <jbeulich@xxxxxxxx>
  • Date: Fri, 26 Nov 2021 15:21:02 +0100
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  • Cc: Stefano Stabellini <sstabellini@xxxxxxxxxx>, Wei Liu <wl@xxxxxxx>, Julien Grall <julien@xxxxxxx>, Roger Pau Monné <roger.pau@xxxxxxxxxx>, Juergen Gross <jgross@xxxxxxxx>, Xen-devel <xen-devel@xxxxxxxxxxxxxxxxxxxx>
  • Delivery-date: Fri, 26 Nov 2021 14:21:26 +0000
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On 26.11.2021 13:33, Andrew Cooper wrote:
> Signed-off-by: Andrew Cooper <andrew.cooper3@xxxxxxxxxx>

I understand there's not much to say here, but the title saying just
"annotate" without any context as to the purpose of the annotation
is too little information imo. I guess this then goes for many more
titles in this series.

> --- a/xen/include/xen/hypercall.h
> +++ b/xen/include/xen/hypercall.h
> @@ -18,12 +18,12 @@
>  #include <asm/hypercall.h>
>  #include <xsm/xsm.h>
>  
> -extern long
> +extern long cf_check
>  do_sched_op(
>      int cmd,
>      XEN_GUEST_HANDLE_PARAM(void) arg);

What purpose does the attribute serve on a declaration? On the surface
I would consider it meaningful only on definitions, like e.g. __init.

Jan




 


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