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 bombadil.infradead.org (bombadil.infradead.org [198.137.202.133]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.lore.kernel.org (Postfix) with ESMTPS id 33E80C433EF for ; Thu, 3 Feb 2022 08:29:50 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.20210309; h=Sender: Content-Transfer-Encoding:Content-Type:List-Subscribe:List-Help:List-Post: List-Archive:List-Unsubscribe:List-Id:MIME-Version:References:In-Reply-To: Message-Id:Date:Subject:Cc:To:From:Reply-To:Content-ID:Content-Description: Resent-Date:Resent-From:Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID: List-Owner; bh=q3YlzGTco9XeWtR0mwxzatIZ2JsSROir96/y8SG9Cls=; b=4v8+eJNm0ZZ1yq YkSQNYrQfSnVoYNe2QdUbLf/RDA6lKbgzjz9VbXrksKyW37a1oJvRbkhGI2olTqSVXdF7CyH4oKet x9945DgLRjd6Cdt/g4g+oqH4w8AfGLNeHR+d9xMXMpbcF2RPg3Z6TH2/ifIJzWdzO/KxNmyBH1Ogj m6eyQqFhL4G09UEP6blvLe7FfDo3XHkpnFB4sCkW5O3TvUfdWwbZA4NeMD9bgcfE7UzAleyGXkIpd geKslV32DKLOfyelSxPKC2WF10ER/1Kj86PegJFhJj49myxsmGOZhpBv9X3XK902QH/nWJORUW+Ok O1czxpxzw3ZwStcuFbTA==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.94.2 #2 (Red Hat Linux)) id 1nFXTR-000LkI-Jk; Thu, 03 Feb 2022 08:28:15 +0000 Received: from dfw.source.kernel.org ([2604:1380:4641:c500::1]) by bombadil.infradead.org with esmtps (Exim 4.94.2 #2 (Red Hat Linux)) id 1nFXOB-000JOR-HY for linux-arm-kernel@lists.infradead.org; Thu, 03 Feb 2022 08:22:49 +0000 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 1CCA061847; Thu, 3 Feb 2022 08:22:47 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id 3A0E9C340F0; Thu, 3 Feb 2022 08:22:44 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1643876566; bh=Zn3vtHBrMJMZdmGf7kyBTViyVsnvxuswU+CgmY1vxP0=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=i28bkHTJeOHzx8GppXKWnjjDdUEXl0UE+ZW3r99ZBWAMEFNecNhHKsMlvycaon5+i 4HhY9Frtk9/IM8YyEHS4+Clv7ZaZjCDvSp4ceHYAkuPPGxAj3Ie/wm/Nkem2KKM6Ah 83MwMW2rnr0sNou6ptIJSCzAITKbSSOq7gU39ON3tlTI2ReslABt+V/7gnF2I279Kh zqSNUb2lTA1seyh/eCzEGs7XG2uIhvYM9uCgHj8xYlQOdNgUakNiHkKpAMTI8l6FDq TUie0bW0FiWd7UXSkvDyP42CKi5BEXG5DSuG/imHUvv1gRriubxAI1ZkC7CFJqhsVj ryFcIY5E7UYLg== From: Ard Biesheuvel To: linux@armlinux.org.uk Cc: linux-arm-kernel@lists.infradead.org, Ard Biesheuvel , Steven Rostedt , Sudeep Holla , Cristian Marussi , Nathan Chancellor , Nick Desaulniers , Arnd Bergmann , Linus Walleij , Masami Hiramatsu Subject: [PATCH v3 12/13] ARM: mach-bcm: disable ftrace in SMC invocation routines Date: Thu, 3 Feb 2022 09:22:03 +0100 Message-Id: <20220203082204.1176734-13-ardb@kernel.org> X-Mailer: git-send-email 2.30.2 In-Reply-To: <20220203082204.1176734-1-ardb@kernel.org> References: <20220203082204.1176734-1-ardb@kernel.org> MIME-Version: 1.0 X-Developer-Signature: v=1; a=openpgp-sha256; l=870; h=from:subject; bh=Zn3vtHBrMJMZdmGf7kyBTViyVsnvxuswU+CgmY1vxP0=; b=owEB7QES/pANAwAKAcNPIjmS2Y8kAcsmYgBh+5CpaNdubvtb+wTxgDCGjNG2VXaDIS8C8oNfABBg UCtsxo+JAbMEAAEKAB0WIQT72WJ8QGnJQhU3VynDTyI5ktmPJAUCYfuQqQAKCRDDTyI5ktmPJMhuC/ 9bHC48BhmoZpJipW3qAKY/Q/T19UsXHL/q7D7JC0JycH3BE22gIHa/dwsyyxuB3eTZU80/z2d0KIsT xv+B7XnpqKOSx8LDrsMdwG/0WYZQlBlBM88Kl8iF46RKtixg8hIOD37qwCcXzkz0dnjnNBce201krG pl23sm8FARaS4V0ImJ4cTDGkCGC6q0/SksMLum6VEs5exYv/eyi31Yg5SicIwKFS6pE2gXMV+g1c5B 0m4/rfKfG6xB98lAfU/kPCpUDmBtCyI8pUZeDuOFC1rrgBy7Tar4irkIsg5MEhJNkz1ojEv+svmuic 3Q9E8w40WBRpFbyCScD/+gtSLQhPq0zB4Pv/tEdCyTUzH7aUUzXrRf32stPmphc9WXem/6OO05xA17 D8Ob0CmOZqn7C/0cSrCgINKMKjfvFMKxIdANgkrUi7mNtH/5lHUgMVVliQ557VvCE3Sx30o/t+EoWv k+k/0D/L5c+G5/RvAUllqN2KHYUme8VYLmclCRcWm3izs= X-Developer-Key: i=ardb@kernel.org; a=openpgp; fpr=F43D03328115A198C90016883D200E9CA6329909 X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20220203_002247_645517_11F6F354 X-CRM114-Status: GOOD ( 11.12 ) X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.org The SMC calling convention uses R7 as an argument register, which conflicts with its use as a frame pointer when building in Thumb2 mode. Given that Clang with ftrace does not permit frame pointers to be enabled, let's omit this compilation unit from ftrace instrumentation. Signed-off-by: Ard Biesheuvel --- arch/arm/mach-bcm/Makefile | 1 + 1 file changed, 1 insertion(+) diff --git a/arch/arm/mach-bcm/Makefile b/arch/arm/mach-bcm/Makefile index 7baa8c9427d5..b2394ddb0558 100644 --- a/arch/arm/mach-bcm/Makefile +++ b/arch/arm/mach-bcm/Makefile @@ -40,6 +40,7 @@ obj-$(CONFIG_ARCH_BCM_MOBILE_L2_CACHE) += kona_l2_cache.o # Support for secure monitor traps obj-$(CONFIG_ARCH_BCM_MOBILE_SMC) += bcm_kona_smc.o +CFLAGS_REMOVE_bcm_kona_smc.o += $(CC_FLAGS_FTRACE) # BCM2835 ifeq ($(CONFIG_ARCH_BCM2835),y) -- 2.30.2 _______________________________________________ linux-arm-kernel mailing list linux-arm-kernel@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-arm-kernel