From mboxrd@z Thu Jan  1 00:00:00 1970
From: David Miller <davem@davemloft.net>
Subject: Re: [PATCH v2] include/linux: printk is needed in filter.h when
 CONFIG_BPF_JIT is defined
Date: Fri, 29 Mar 2013 15:34:47 -0400 (EDT)
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From: Chen Gang <gang.chen@asianux.com>
Date: Fri, 29 Mar 2013 09:24:53 +0800

> 
>   for make V=1 EXTRA_CFLAGS=-W ARCH=arm allmodconfig
>     printk is need when CONFIG_BPF_JIT is defined
>     or it will report pr_err and print_hex_dump are implicit declaration
> 
> Signed-off-by: Chen Gang <gang.chen@asianux.com>

There are no references to pr_err nor print_hex_dump in this
filter.h header file.

I think the issue is more like that the ARM bpf jit code uses
those routines, and therefore the ARM bpf jit code is what needs
to add these includes.

I'm not applying this patch, it isn't correct.