linux-kernel - Re: [RFC PATCH -tip 0/5] kprobes: Abolish jprobe APIs

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Message-ID: <20171020151751.drjmkxkt2orbteag@gmail.com>
Date:   Fri, 20 Oct 2017 17:17:51 +0200
From:   Ingo Molnar <mingo@...nel.org>
To:     Kees Cook <keescook@...omium.org>,
        Greg Kroah-Hartman <gregkh@...uxfoundation.org>
Cc:     Masami Hiramatsu <mhiramat@...nel.org>,
        Linus Torvalds <torvalds@...ux-foundation.org>,
        Peter Zijlstra <peterz@...radead.org>,
        Alexei Starovoitov <ast@...nel.org>,
        Ananth N Mavinakayanahalli <ananth@...ux.vnet.ibm.com>,
        "Paul E . McKenney" <paulmck@...ux.vnet.ibm.com>,
        Steven Rostedt <rostedt@...dmis.org>,
        Thomas Gleixner <tglx@...utronix.de>,
        LKML <linux-kernel@...r.kernel.org>,
        "H . Peter Anvin" <hpa@...or.com>,
        Anil S Keshavamurthy <anil.s.keshavamurthy@...el.com>,
        "David S . Miller" <davem@...emloft.net>,
        Ian McDonald <ian.mcdonald@...di.co.nz>,
        Vlad Yasevich <vyasevich@...il.com>,
        Stephen Hemminger <stephen@...workplumber.org>
Subject: Re: [RFC PATCH -tip 0/5] kprobes: Abolish jprobe APIs


* Kees Cook <keescook@...omium.org> wrote:

> On Fri, Oct 20, 2017 at 5:22 AM, Ingo Molnar <mingo@...nel.org> wrote:
> >
> > Ok, could we now also fix these:
> >
> > net/dccp/probe.c:166:2: warning: ‘register_jprobe’ is deprecated [-Wdeprecated-declarations]
> > net/dccp/probe.c:170:4: warning: ‘register_jprobe’ is deprecated [-Wdeprecated-declarations]
> > net/dccp/probe.c:190:2: warning: ‘unregister_jprobe’ is deprecated [-Wdeprecated-declarations]
> > drivers/misc/lkdtm_core.c:317:3: warning: ‘unregister_jprobe’ is deprecated [-Wdeprecated-declarations]
> > drivers/misc/lkdtm_core.c:322:2: warning: ‘register_jprobe’ is deprecated [-Wdeprecated-declarations]
> > drivers/misc/lkdtm_core.c:560:3: warning: ‘unregister_jprobe’ is deprecated [-Wdeprecated-declarations]
> > net/sctp/probe.c:189:2: warning: ‘register_jprobe’ is deprecated [-Wdeprecated-declarations]
> > net/sctp/probe.c:194:3: warning: ‘register_jprobe’ is deprecated [-Wdeprecated-declarations]
> > net/sctp/probe.c:240:2: warning: ‘unregister_jprobe’ is deprecated [-Wdeprecated-declarations]
> > net/ipv4/tcp_probe.c:280:2: warning: ‘register_jprobe’ is deprecated [-Wdeprecated-declarations]
> > net/ipv4/tcp_probe.c:298:2: warning: ‘unregister_jprobe’ is deprecated [-Wdeprecated-declarations]
> >
> > I'd suggest removing the networking ones and Cc:-ing it to the networking folks -
> > I strongly doubt anyone is using that functionality for real.
> >
> > The LKDTM one Kees had some ideas (patches?) for?
> 
> Oops, yes, I've sent this patch to Greg now. I had let it sit for a
> few days of 0-day testing and promptly forgot about it. ;)

Could we, as a special exception, carry this patch in -tip, so that the probes 
related changes stay togher - or is it too distruptive to the flow of other 
in-flight LKDTM patches, creating conflicts, etc.?

Thanks,

	Ingo