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[23.128.96.38]) by mx.google.com with ESMTPS id f12-20020a056a001acc00b006be31c8eea5si16644786pfv.61.2023.11.09.07.58.00 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Thu, 09 Nov 2023 07:58:01 -0800 (PST) Received-SPF: pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 23.128.96.38 as permitted sender) client-ip=23.128.96.38; Authentication-Results: mx.google.com; dkim=pass header.i=@tum.de header.s=tu-postout21 header.b="N/TXfWMy"; spf=pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 23.128.96.38 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org; dmarc=pass (p=NONE sp=NONE dis=NONE) header.from=tum.de Received: from out1.vger.email (depot.vger.email [IPv6:2620:137:e000::3:0]) by fry.vger.email (Postfix) with ESMTP id AC4A68020706; Thu, 9 Nov 2023 07:57:58 -0800 (PST) X-Virus-Status: Clean X-Virus-Scanned: clamav-milter 0.103.11 at fry.vger.email Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S234424AbjKIP5r (ORCPT + 31 others); Thu, 9 Nov 2023 10:57:47 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:53154 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S229914AbjKIP5r (ORCPT ); Thu, 9 Nov 2023 10:57:47 -0500 X-Greylist: delayed 382 seconds by postgrey-1.37 at lindbergh.monkeyblade.net; Thu, 09 Nov 2023 07:57:44 PST Received: from postout2.mail.lrz.de (postout2.mail.lrz.de [129.187.255.138]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 035D02736 for ; Thu, 9 Nov 2023 07:57:43 -0800 (PST) Received: from lxmhs52.srv.lrz.de (localhost [127.0.0.1]) by postout2.mail.lrz.de (Postfix) with ESMTP id 4SR5z762ZDzyXQ; Thu, 9 Nov 2023 16:51:15 +0100 (CET) Authentication-Results: postout.lrz.de (amavisd-new); dkim=pass (2048-bit key) reason="pass (just generated, assumed good)" header.d=tum.de DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=tum.de; h= content-transfer-encoding:content-type:content-type:mime-version :x-mailer:message-id:date:date:subject:subject:from:from :received:received; s=tu-postout21; t=1699545075; bh=FLhY3lTuUc3 WtyOcLcUxakIx8PVClCaL3IV9f8Y5L90=; b=N/TXfWMy9zpCCJLzYvbIxaD0dUx WELXUYSKYFnM4U7W/wj7sCYI8VkdTVh2oU//d9j2jKQcrMYMlRyeaENeujdkxQyI 77WlHKChdwbGgtuyusTPax/PEyn5SofxzwRiIwvPOFUJgaXwzmwGYsFboD5HbOxi YYIXff2pDJcunVzbDdRQS9a6Fl6ivPLkczplRnTJoj64uS8g3sT04BvbkaJzPPDM E5pvVfm7p29h0y0bf2r/JdEu9AHl5DoHP9nGbM+6Xrcz1AC6jMzKL6NSC0v4pl/P GMMu9mHNgfzZh4CT5OUM/pBrQVI7JyOkjoZ80MzOvWixtnFqRgC5EOzw6Yw== X-Virus-Scanned: by amavisd-new at lrz.de in lxmhs52.srv.lrz.de X-Spam-Score: -2.885 X-Spam-Level: X-Spam-Status: No, score=-0.9 required=5.0 tests=DKIM_SIGNED,DKIM_VALID, DKIM_VALID_AU,HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI, SPF_HELO_NONE,SPF_PASS,T_SCC_BODY_TEXT_LINE autolearn=unavailable autolearn_force=no version=3.4.6 Received: from postout2.mail.lrz.de ([127.0.0.1]) by lxmhs52.srv.lrz.de (lxmhs52.srv.lrz.de [127.0.0.1]) (amavisd-new, port 20024) with LMTP id JcuZfT6noPOB; Thu, 9 Nov 2023 16:51:15 +0100 (CET) Received: from sienna.cit.tum.de (Monitor.dos.cit.tum.de [131.159.38.165]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature RSA-PSS (2048 bits) server-digest SHA256) (No client certificate requested) by postout2.mail.lrz.de (Postfix) with ESMTPSA id 4SR5z66SBszySZ; Thu, 9 Nov 2023 16:51:14 +0100 (CET) From: =?utf-8?q?Paul_Heidekr=C3=BCger?= To: Andrey Ryabinin , Alexander Potapenko , Andrey Konovalov , Dmitry Vyukov , Vincenzo Frascino , kasan-dev@googlegroups.com, linux-kernel@vger.kernel.org Cc: =?utf-8?q?Paul_Heidekr=C3=BCger?= Subject: [PATCH] kasan: default to inline instrumentation Date: Thu, 9 Nov 2023 15:51:00 +0000 Message-Id: <20231109155101.186028-1-paul.heidekrueger@tum.de> X-Mailer: git-send-email 2.40.1 MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org X-Greylist: Sender passed SPF test, not delayed by milter-greylist-4.6.4 (fry.vger.email [0.0.0.0]); Thu, 09 Nov 2023 07:57:58 -0800 (PST) X-Spam-Checker-Version: SpamAssassin 3.4.6 (2021-04-09) on fry.vger.email X-getmail-retrieved-from-mailbox: INBOX X-GMAIL-THRID: 1782102602177134322 X-GMAIL-MSGID: 1782102602177134322 KASan inline instrumentation can yield up to a 2x performance gain at the cost of a larger binary. Make inline instrumentation the default, as suggested in the bug report below. When an architecture does not support inline instrumentation, it should set ARCH_DISABLE_KASAN_INLINE, as done by PowerPC, for instance. CC: Dmitry Vyukov Reported-by: Andrey Konovalov Closes: https://bugzilla.kernel.org/show_bug.cgi?id=203495 Signed-off-by: Paul Heidekrüger Acked-by: Andrey Konovalov Reviewed-by: Marco Elver Signed-off-by: Andrew Morton --- lib/Kconfig.kasan | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/lib/Kconfig.kasan b/lib/Kconfig.kasan index fdca89c05745..935eda08b1e1 100644 --- a/lib/Kconfig.kasan +++ b/lib/Kconfig.kasan @@ -134,7 +134,7 @@ endchoice choice prompt "Instrumentation type" depends on KASAN_GENERIC || KASAN_SW_TAGS - default KASAN_OUTLINE + default KASAN_INLINE if !ARCH_DISABLE_KASAN_INLINE config KASAN_OUTLINE bool "Outline instrumentation"