From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id 444DBC4332F for ; Mon, 14 Nov 2022 11:45:56 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S236603AbiKNLpy (ORCPT ); Mon, 14 Nov 2022 06:45:54 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:41176 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S236069AbiKNLpS (ORCPT ); Mon, 14 Nov 2022 06:45:18 -0500 Received: from dfw.source.kernel.org (dfw.source.kernel.org [139.178.84.217]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id B1C3823158 for ; Mon, 14 Nov 2022 03:44:43 -0800 (PST) Received: from smtp.kernel.org (relay.kernel.org [52.25.139.140]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by dfw.source.kernel.org (Postfix) with ESMTPS id 4A2946106E for ; Mon, 14 Nov 2022 11:44:43 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id 8FE15C433C1; Mon, 14 Nov 2022 11:44:41 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1668426282; bh=EmZ2uX2gI3bbUDmWCTMpWHApcz7gKOlAwlCJ75sHcrw=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=rXbgHJtsiDuv0sPyHOGdWkcq8w522U/y0OQB4TPexKtwC6oYufrIMP+/qxIDlYWk7 y1TlsjFwRaS2LaJ+1uyhtVefA2TVGcMbApsz8lszDYncpAAkdGAAbGwc8xb0gYl+Hi XAgx5aC86ODFPR6LrCi/vGM9Ms8+wdHeOXhQNXiAvhaBBAeaz4yyONF2qErsOLFJZ8 +PWMTtuOxKG/O09KLA3gBJS3DPdhq+ZmNLPI1wccXLRNAxJ/WfNa7F6pVV+DLIEM6m k/gXsKrOGrMh/KX68S47Z2mr1wnI/NN+epgXaNLFiUkewr5enPvFpD4TYT/dWcmP7i xITP5aobDF4Wg== From: "Jiri Slaby (SUSE)" To: linux-kernel@vger.kernel.org Cc: Andi Kleen , Martin Liska , Jiri Slaby Subject: [PATCH 20/46] softirq, lto: Mark irq_enter/exit_rcu() as __visible Date: Mon, 14 Nov 2022 12:43:18 +0100 Message-Id: <20221114114344.18650-21-jirislaby@kernel.org> X-Mailer: git-send-email 2.38.1 In-Reply-To: <20221114114344.18650-1-jirislaby@kernel.org> References: <20221114114344.18650-1-jirislaby@kernel.org> MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org From: Andi Kleen Symbols referenced from assembler (either directly or e.f. from DEFINE_STATIC_KEY()) need to be global and visible in gcc LTO because they could end up in a different object file than the assembler. This can lead to linker errors without this patch. So mark irq_enter_rcu() and irq_exit_rcu() as __visible. Signed-off-by: Andi Kleen Signed-off-by: Martin Liska Signed-off-by: Jiri Slaby --- kernel/softirq.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/kernel/softirq.c b/kernel/softirq.c index c8a6913c067d..9d62e09c9581 100644 --- a/kernel/softirq.c +++ b/kernel/softirq.c @@ -604,7 +604,7 @@ asmlinkage __visible void __softirq_entry __do_softirq(void) /** * irq_enter_rcu - Enter an interrupt context with RCU watching */ -void irq_enter_rcu(void) +__visible void irq_enter_rcu(void) { __irq_enter_raw(); @@ -657,7 +657,7 @@ static inline void __irq_exit_rcu(void) * * Also processes softirqs if needed and possible. */ -void irq_exit_rcu(void) +__visible void irq_exit_rcu(void) { __irq_exit_rcu(); /* must be last! */ -- 2.38.1