From mboxrd@z Thu Jan  1 00:00:00 1970
From: Michael Ellerman <mpe@ellerman.id.au>
Date: Mon, 30 Jun 2014 11:36:16 +0000
Subject: Re: [PATCH v4] [BUGFIX] kprobes: Fix "Failed to find blacklist" error on ia64 and ppc64
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List-Id: <linux-ia64.vger.kernel.org>
References: <20140620022307.23075.55858.stgit@kbuild-fedora.novalocal>
	 <53B0D61B.9010104@hitachi.com>
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To: Masami Hiramatsu <masami.hiramatsu.pt@hitachi.com>
Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org>, Paul Mackerras <paulus@samba.org>, Tony Luck <tony.luck@gmail.com>, Jeremy Fitzhardinge <jeremy@goop.org>, linux-ia64@vger.kernel.org, sparse@chrisli.org, "H. Peter Anvin" <hpa@zytor.com>, Ingo Molnar <mingo@kernel.org>, linux-tip-commits@vger.kernel.org, akataria@vmware.com, anil.s.keshavamurthy@intel.com, "Suzuki K. Poulose" <suzuki@in.ibm.com>, Fenghua Yu <fenghua.yu@intel.com>, Arnd Bergmann <arnd@arndb.de>, Rusty Russell <rusty@rustcorp.com.au>, Chris Wright <chrisw@sous-sol.org>, yrl.pp-manager.tt@hitachi.com, Thomas Gleixner <tglx@linutronix.de>, Tony Luck <tony.luck@intel.com>, Kevin Hao <haokexin@gmail.com>, Ananth N Mavinakayanahalli <ananth@in.ibm.com>, linuxppc-dev@lists.ozlabs.org, rdunlap@infradead.org, Linux Kernel Mailing List <linux-kernel@vger.kernel.org>, dl9pf@gmx.de, Andrew Morton <akpm@linux-foundation.org>, Linus Torvalds <torvalds@linux-foundation.org>, "David S. Miller" <davem@davemloft.net>

On Mon, 2014-06-30 at 12:14 +0900, Masami Hiramatsu wrote:
> Ping? :)

Yeah sorry. I started looking at this and got dragged into another mess.

You seem to have duplicated the functionality of arch_deref_entry_point(),
which was also added for kprobes, and for the same reason - ie. because some
arches have strange function pointers. Is there some reason you can't use it?

cheers