linux-kernel - Re: [PATCH] Tracepoint: Make skb tracepoint use TRACE

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]

Date:	Thu, 9 Apr 2009 11:05:08 -0400 (EDT)
From:	Steven Rostedt <rostedt@...dmis.org>
To:	Neil Horman <nhorman@...driver.com>
cc:	Ingo Molnar <mingo@...e.hu>, Zhaolei <zhaolei@...fujitsu.com>,
	"David S. Miller" <davem@...emloft.net>,
	Arnaldo Carvalho de Melo <acme@...hat.com>,
	Frederic Weisbecker <fweisbec@...il.com>,
	Tom Zanussi <tzanussi@...il.com>, linux-kernel@...r.kernel.org,
	Peter Zijlstra <a.p.zijlstra@...llo.nl>
Subject: Re: [PATCH] Tracepoint: Make skb tracepoint use TRACE_EVENT macro


On Thu, 9 Apr 2009, Neil Horman wrote:
> 
> I think this seems like a reasonable idea, as long as the sites that register a
> hook for the tracepoint don't need to be updated (and it looks like they dont).
> I do have one nit though: include/trace/skb.h has been emptied and now includes
> include/trace/skb_event_types.h instead.  For the sake of neatness I'd say we
> should either not make that change, and just dump the contents of
> skb_event_types.h into trace/skb.h, or alternatively, remove trace/skb.h
> entirely, and have files that need trace/skb.h include skb_event_types.h
> instead.  Do that and it has my ACK.

Actually that trace/skb.h change is needed. It is not emptied, it still 
has:

 #include <linux/skbuff.h>
 #include <linux/tracepoint.h>

before the include of include/trace/skb_event_types.h

For ftrace to do its magic with the TRACE_EVENT macro, the file that 
contains the TRACE_EVENT can not include tracepoint.h.  ftrace runs the 
skb_event_types.h through a series of redefines of the TRACE_EVENT to 
automate the creation of the directory and files in 
debugfs/tracing/events/*.

We've already changed most of the files in include/trace/ to this format.

I hope we can still have your Ack without making your requested update.

Thanks,

-- Steve

--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@...r.kernel.org
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/