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[2620:137:e000::1:20]) by mx.google.com with ESMTP id gb24-20020a170907961800b00782ee59ad7fsi10187312ejc.977.2022.10.17.18.43.00; Mon, 17 Oct 2022 18:43:25 -0700 (PDT) Received-SPF: pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 2620:137:e000::1:20 as permitted sender) client-ip=2620:137:e000::1:20; Authentication-Results: mx.google.com; dkim=pass header.i=@intel.com header.s=Intel header.b=FkCoaLIL; spf=pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 2620:137:e000::1:20 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org; dmarc=pass (p=NONE sp=NONE dis=NONE) header.from=intel.com Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S230189AbiJRBcx (ORCPT + 99 others); Mon, 17 Oct 2022 21:32:53 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:60044 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S230094AbiJRBcv (ORCPT ); Mon, 17 Oct 2022 21:32:51 -0400 Received: from mga05.intel.com (mga05.intel.com [192.55.52.43]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id DE51AD88; Mon, 17 Oct 2022 18:32:50 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=intel.com; i=@intel.com; q=dns/txt; s=Intel; t=1666056770; x=1697592770; h=from:to:cc:subject:date:message-id:mime-version: content-transfer-encoding; bh=HU32EIXN4wgKHTDbR87eVWv30iu9Y/xR0IE3CNJy6TU=; b=FkCoaLILXtiWxzkcweXlG4iLlbrBtpyQPYYIUM96XWjTU6aZI6MKtIYN syAPf1spXfqRzq9MB3prPfSUHtx+DFPMqGnbBM+Qw9iDiomehvWNWTnYn MnIhLDrf0Ss0MlDqtX0riqrB1LjwJPky3VQuEfOhJoSz6zs8DQ3ICiuPs 4h84lddVQMD26cbD9X9ehNKOUt0TGwBQR57tTOHa1HpxAygRuc7R5fsYg l023NO8X9S4fzCu9XJU7d3VQ2WCCph8L4QTA52MPpJNYAyB1p/gn5bCRL V1LO/FJGdCHQuVU5w3+sq46nShPRPcZg9kYLwX4vTySuCkVEvhEE3zaaz Q==; X-IronPort-AV: E=McAfee;i="6500,9779,10503"; a="392267428" X-IronPort-AV: E=Sophos;i="5.95,192,1661842800"; d="scan'208";a="392267428" Received: from fmsmga001.fm.intel.com ([10.253.24.23]) by fmsmga105.fm.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 17 Oct 2022 18:32:50 -0700 X-IronPort-AV: E=McAfee;i="6500,9779,10503"; a="770986851" X-IronPort-AV: E=Sophos;i="5.95,192,1661842800"; d="scan'208";a="770986851" Received: from zq-optiplex-7090.bj.intel.com ([10.238.156.129]) by fmsmga001-auth.fm.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 17 Oct 2022 18:32:49 -0700 From: Zqiang To: paulmck@kernel.org, frederic@kernel.org, joel@joelfernandes.org Cc: rcu@vger.kernel.org, linux-kernel@vger.kernel.org Subject: [PATCH] srcu: Export srcu_check_nmi_safety() to modules Date: Tue, 18 Oct 2022 09:39:06 +0800 Message-Id: <20221018013906.3890007-1-qiang1.zhang@intel.com> X-Mailer: git-send-email 2.25.1 MIME-Version: 1.0 X-Spam-Status: No, score=-4.7 required=5.0 tests=BAYES_00,DKIMWL_WL_HIGH, DKIM_SIGNED,DKIM_VALID,DKIM_VALID_AU,DKIM_VALID_EF,RCVD_IN_DNSWL_MED, SPF_HELO_NONE,SPF_NONE autolearn=ham autolearn_force=no version=3.4.6 X-Spam-Checker-Version: SpamAssassin 3.4.6 (2021-04-09) on lindbergh.monkeyblade.net Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org X-getmail-retrieved-from-mailbox: =?utf-8?q?INBOX?= X-GMAIL-THRID: =?utf-8?q?1746987809473884334?= X-GMAIL-MSGID: =?utf-8?q?1746987809473884334?= When enable CONFIG_PROVE_RCU and built modules, the following error appear: ERROR: modpost: "srcu_check_nmi_safety" [kernel/rcu/rcutorture.ko] undefined! ERROR: modpost: "srcu_check_nmi_safety" [kernel/rcu/rcuscale.ko] undefined! This commit fix it by exporting the srcu_check_nmi_safety(). Signed-off-by: Zqiang Acked-by: Joel Fernandes (Google) Reviewed-by: Frederic Weisbecker --- kernel/rcu/srcutree.c | 1 + 1 file changed, 1 insertion(+) diff --git a/kernel/rcu/srcutree.c b/kernel/rcu/srcutree.c index 382236dd5e46..bcd629f5f902 100644 --- a/kernel/rcu/srcutree.c +++ b/kernel/rcu/srcutree.c @@ -651,6 +651,7 @@ void srcu_check_nmi_safety(struct srcu_struct *ssp, bool nmi_safe) } WARN_ONCE(old_nmi_safe_mask != nmi_safe_mask, "CPU %d old state %d new state %d\n", sdp->cpu, old_nmi_safe_mask, nmi_safe_mask); } +EXPORT_SYMBOL_GPL(srcu_check_nmi_safety); #endif /* CONFIG_PROVE_RCU */ /*