From patchwork Thu Sep 16 15:59:36 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Greg Kroah-Hartman X-Patchwork-Id: 513693 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-19.1 required=3.0 tests=BAYES_00,DKIMWL_WL_HIGH, DKIM_SIGNED,DKIM_VALID,DKIM_VALID_AU,HEADER_FROM_DIFFERENT_DOMAINS, INCLUDES_CR_TRAILER, INCLUDES_PATCH, MAILING_LIST_MULTI, SPF_HELO_NONE, SPF_PASS, USER_AGENT_GIT autolearn=ham autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id EC86EC433F5 for ; Thu, 16 Sep 2021 17:26:53 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id D57C06108F for ; Thu, 16 Sep 2021 17:26:53 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1347709AbhIPR2H (ORCPT ); Thu, 16 Sep 2021 13:28:07 -0400 Received: from mail.kernel.org ([198.145.29.99]:46948 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1348338AbhIPRZw (ORCPT ); Thu, 16 Sep 2021 13:25:52 -0400 Received: by mail.kernel.org (Postfix) with ESMTPSA id A5A2F61BF6; Thu, 16 Sep 2021 16:44:36 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=linuxfoundation.org; s=korg; t=1631810677; bh=uwA0nUERC+utH2fpcqTViMZbqrZcqe6qSSC9TEOQ8Yg=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=BEHVdwvTyh3M8Uy3FJDkqSzEcpIttWifuq520mGrJ4wsRKx/DRoKnUDKyJQvKYD7g //62ErO/hsstsKf7j0Dbjz192nJf7d1nzI9+MSgIsLM9KaxVh7fG7eKYnQEm+SxMwh k12z88mcmlyzd7BnmQHk4ZopCCuXs/IpHB0Qo1hg= From: Greg Kroah-Hartman To: linux-kernel@vger.kernel.org Cc: Greg Kroah-Hartman , stable@vger.kernel.org, Heiko Carstens , Sasha Levin Subject: [PATCH 5.14 227/432] s390/jump_label: print real address in a case of a jump label bug Date: Thu, 16 Sep 2021 17:59:36 +0200 Message-Id: <20210916155818.538921806@linuxfoundation.org> X-Mailer: git-send-email 2.33.0 In-Reply-To: <20210916155810.813340753@linuxfoundation.org> References: <20210916155810.813340753@linuxfoundation.org> User-Agent: quilt/0.66 MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: stable@vger.kernel.org From: Heiko Carstens [ Upstream commit 5492886c14744d239e87f1b0b774b5a341e755cc ] In case of a jump label print the real address of the piece of code where a mismatch was detected. This is right before the system panics, so there is nothing revealed. Signed-off-by: Heiko Carstens Signed-off-by: Sasha Levin --- arch/s390/kernel/jump_label.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/arch/s390/kernel/jump_label.c b/arch/s390/kernel/jump_label.c index ab584e8e3527..9156653b56f6 100644 --- a/arch/s390/kernel/jump_label.c +++ b/arch/s390/kernel/jump_label.c @@ -36,7 +36,7 @@ static void jump_label_bug(struct jump_entry *entry, struct insn *expected, unsigned char *ipe = (unsigned char *)expected; unsigned char *ipn = (unsigned char *)new; - pr_emerg("Jump label code mismatch at %pS [%p]\n", ipc, ipc); + pr_emerg("Jump label code mismatch at %pS [%px]\n", ipc, ipc); pr_emerg("Found: %6ph\n", ipc); pr_emerg("Expected: %6ph\n", ipe); pr_emerg("New: %6ph\n", ipn);