From: Steven Rostedt <rostedt@goodmis.org>
To: "Naveen N. Rao" <naveen.n.rao@linux.vnet.ibm.com>
Cc: linux-kernel@vger.kernel.org, linuxppc-dev@lists.ozlabs.org,
Masami Hiramatsu <mhiramat@kernel.org>,
Ingo Molnar <mingo@kernel.org>,
Michael Ellerman <mpe@ellerman.id.au>,
Nicholas Piggin <npiggin@gmail.com>
Subject: Re: [PATCH 5/7] powerpc/ftrace: Update ftrace_location() for powerpc -mprofile-kernel
Date: Wed, 19 Jun 2019 05:28:00 -0400 [thread overview]
Message-ID: <20190619052800.434ff6f0@oasis.local.home> (raw)
In-Reply-To: <1560930937.j2vguryjp3.naveen@linux.ibm.com>
On Wed, 19 Jun 2019 13:26:37 +0530
"Naveen N. Rao" <naveen.n.rao@linux.vnet.ibm.com> wrote:
> > In include/ftrace.h:
> >
> > #ifndef FTRACE_IP_EXTENSION
> > # define FTRACE_IP_EXTENSION 0
> > #endif
> >
> >
> > In arch/powerpc/include/asm/ftrace.h
> >
> > #define FTRACE_IP_EXTENSION MCOUNT_INSN_SIZE
> >
> >
> > Then we can just have:
> >
> > unsigned long ftrace_location(unsigned long ip)
> > {
> > return ftrace_location_range(ip, ip + FTRACE_IP_EXTENSION);
> > }
>
> Thanks, that's indeed nice. I hope you don't mind me adding your SOB for
> that.
Actually, it's best not to put a SOB by anyone other than yourself. It
actually has legal meaning.
In this case, please add:
Suggested-by: Steven Rostedt (VMware) <rostedt@goodmis.org>
Thanks!
-- Steve
next prev parent reply other threads:[~2019-06-19 9:28 UTC|newest]
Thread overview: 23+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-06-18 14:46 [PATCH 0/7] powerpc/ftrace: Patch out -mprofile-kernel instructions Naveen N. Rao
2019-06-18 14:47 ` [PATCH 1/7] ftrace: Expose flags used for ftrace_replace_code() Naveen N. Rao
2019-06-18 14:47 ` [PATCH 2/7] x86/ftrace: Fix use of flags in ftrace_replace_code() Naveen N. Rao
2019-06-18 14:47 ` [PATCH 3/7] ftrace: Expose __ftrace_replace_code() Naveen N. Rao
2019-06-18 14:47 ` [PATCH 4/7] powerpc/ftrace: Additionally nop out the preceding mflr with -mprofile-kernel Naveen N. Rao
2019-06-19 5:14 ` Michael Ellerman
2019-06-19 7:10 ` Nicholas Piggin
2019-06-19 9:53 ` Naveen N. Rao
2019-06-19 10:41 ` Nicholas Piggin
2019-06-19 17:14 ` Naveen N. Rao
2019-06-18 14:47 ` [PATCH 5/7] powerpc/ftrace: Update ftrace_location() for powerpc -mprofile-kernel Naveen N. Rao
2019-06-18 15:45 ` Steven Rostedt
2019-06-18 18:11 ` Naveen N. Rao
2019-06-18 18:23 ` Naveen N. Rao
2019-06-18 18:32 ` Steven Rostedt
2019-06-19 7:56 ` Naveen N. Rao
2019-06-19 9:28 ` Steven Rostedt [this message]
2019-06-18 14:47 ` [PATCH 6/7] kprobes/ftrace: Use ftrace_location() when [dis]arming probes Naveen N. Rao
2019-06-21 14:41 ` Masami Hiramatsu
2019-06-18 14:47 ` [PATCH 7/7] powerpc/kprobes: Allow probing on any ftrace address Naveen N. Rao
2019-06-21 14:50 ` Masami Hiramatsu
2019-06-22 3:49 ` Joe Perches
2019-06-26 9:39 ` Naveen N. Rao
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