linux-kernel - Re: [REGRESSION][PATCH V4 1/3] bpf jit: Make the filter.c::__load

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Date:	Fri, 30 Mar 2012 20:56:15 +0200
From:	Eric Dumazet <eric.dumazet@...il.com>
To:	Jan Seiffert <kaffeemonster@...glemail.com>
Cc:	netdev@...r.kernel.org, linux-kernel@...r.kernel.org,
	linuxppc-dev@...ts.ozlabs.org, Matt Evans <matt@...abs.org>,
	"David S. Miller" <davem@...emloft.net>
Subject: Re: [REGRESSION][PATCH V4 1/3] bpf jit: Make the
 filter.c::__load_pointer helper non-static  for the jits

On Fri, 2012-03-30 at 17:08 +0200, Jan Seiffert wrote:
> The function is renamed to make it a little more clear what it does.
> It is not added to any .h because it is not for general consumption, only for
> bpf internal use (and so by the jits).
> 
> Signed-of-by: Jan Seiffert <kaffeemonster@...glemail.com>
> 

Missing "---" line separator (check Documentation/SubmittingPatches line
490)

You can check http://patchwork.ozlabs.org/patch/149683/ and see there is
a problem, compared to http://patchwork.ozlabs.org/patch/149441/ for
example

> --- a/net/core/filter.c
> +++ b/net/core/filter.c
> @@ -40,8 +40,12 @@
>  #include <linux/reciprocal_div.h>
>  #include <linux/ratelimit.h>
>  
> -/* No hurry in this branch */
> -static void *__load_pointer(const struct sk_buff *skb, int k, unsigned int size)
> +/*
> + * No hurry in this branch
> + *
> + * Exported for the bpf jit load helper.
> + */

Seems good to me, maybe add a strong warning in the comment to say that
function prototype can NOT change without major surgery in ASM files,
since assembler wont catch the prototype change for us.

Acked-by: Eric Dumazet <eric.dumazet@...il.com>



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