linux-kernel - [PATCH 4.14 147/165] kprobes/arm: Fix %p uses in error messages

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Date:   Mon,  3 Sep 2018 18:57:13 +0200
From:   Greg Kroah-Hartman <gregkh@...uxfoundation.org>
To:     linux-kernel@...r.kernel.org
Cc:     Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        stable@...r.kernel.org, Masami Hiramatsu <mhiramat@...nel.org>,
        Ananth N Mavinakayanahalli <ananth@...ibm.com>,
        Anil S Keshavamurthy <anil.s.keshavamurthy@...el.com>,
        Arnd Bergmann <arnd@...db.de>,
        David Howells <dhowells@...hat.com>,
        "David S . Miller" <davem@...emloft.net>,
        Heiko Carstens <heiko.carstens@...ibm.com>,
        Jon Medhurst <tixy@...aro.org>,
        Linus Torvalds <torvalds@...ux-foundation.org>,
        Peter Zijlstra <peterz@...radead.org>,
        Thomas Gleixner <tglx@...utronix.de>,
        Thomas Richter <tmricht@...ux.ibm.com>,
        "Tobin C . Harding" <me@...in.cc>,
        Will Deacon <will.deacon@....com>, acme@...nel.org,
        akpm@...ux-foundation.org, brueckner@...ux.vnet.ibm.com,
        linux-arch@...r.kernel.org, rostedt@...dmis.org,
        schwidefsky@...ibm.com, Ingo Molnar <mingo@...nel.org>
Subject: [PATCH 4.14 147/165] kprobes/arm: Fix %p uses in error messages

4.14-stable review patch.  If anyone has any objections, please let me know.

------------------

From: Masami Hiramatsu <mhiramat@...nel.org>

commit 75b2f5f5911fe7a2fc82969b2b24dde34e8f820d upstream.

Fix %p uses in error messages by removing it and
using general dumper.

Signed-off-by: Masami Hiramatsu <mhiramat@...nel.org>
Cc: Ananth N Mavinakayanahalli <ananth@...ibm.com>
Cc: Anil S Keshavamurthy <anil.s.keshavamurthy@...el.com>
Cc: Arnd Bergmann <arnd@...db.de>
Cc: David Howells <dhowells@...hat.com>
Cc: David S . Miller <davem@...emloft.net>
Cc: Heiko Carstens <heiko.carstens@...ibm.com>
Cc: Jon Medhurst <tixy@...aro.org>
Cc: Linus Torvalds <torvalds@...ux-foundation.org>
Cc: Peter Zijlstra <peterz@...radead.org>
Cc: Thomas Gleixner <tglx@...utronix.de>
Cc: Thomas Richter <tmricht@...ux.ibm.com>
Cc: Tobin C . Harding <me@...in.cc>
Cc: Will Deacon <will.deacon@....com>
Cc: acme@...nel.org
Cc: akpm@...ux-foundation.org
Cc: brueckner@...ux.vnet.ibm.com
Cc: linux-arch@...r.kernel.org
Cc: rostedt@...dmis.org
Cc: schwidefsky@...ibm.com
Cc: stable@...r.kernel.org
Link: https://lkml.kernel.org/lkml/152491905361.9916.15300852365956231645.stgit@devbox
Signed-off-by: Ingo Molnar <mingo@...nel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@...uxfoundation.org>

---
 arch/arm/probes/kprobes/core.c      |    4 ++--
 arch/arm/probes/kprobes/test-core.c |    1 -
 2 files changed, 2 insertions(+), 3 deletions(-)

--- a/arch/arm/probes/kprobes/core.c
+++ b/arch/arm/probes/kprobes/core.c
@@ -291,8 +291,8 @@ void __kprobes kprobe_handler(struct pt_
 				break;
 			case KPROBE_REENTER:
 				/* A nested probe was hit in FIQ, it is a BUG */
-				pr_warn("Unrecoverable kprobe detected at %p.\n",
-					p->addr);
+				pr_warn("Unrecoverable kprobe detected.\n");
+				dump_kprobe(p);
 				/* fall through */
 			default:
 				/* impossible cases */
--- a/arch/arm/probes/kprobes/test-core.c
+++ b/arch/arm/probes/kprobes/test-core.c
@@ -1517,7 +1517,6 @@ fail:
 	print_registers(&result_regs);

 	if (mem) {
-		pr_err("current_stack=%p\n", current_stack);
 		pr_err("expected_memory:\n");
 		print_memory(expected_memory, mem_size);
 		pr_err("result_memory:\n");