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 X-Spam-Level: X-Spam-Status: No, score=-8.3 required=3.0 tests=DKIMWL_WL_HIGH,DKIM_SIGNED, DKIM_VALID,HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_PATCH,MAILING_LIST_MULTI, SIGNED_OFF_BY,SPF_HELO_NONE,SPF_PASS,USER_AGENT_SANE_1 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 9C4B9C433E0 for ; Wed, 20 May 2020 11:06:59 +0000 (UTC) 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 mail.kernel.org (Postfix) with ESMTPS id 66D62207C4 for ; Wed, 20 May 2020 11:06:59 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (2048-bit key) header.d=lists.infradead.org header.i=@lists.infradead.org header.b="Lbon4ivK" DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 66D62207C4 Authentication-Results: mail.kernel.org; dmarc=none (p=none dis=none) header.from=arm.com Authentication-Results: mail.kernel.org; spf=none smtp.mailfrom=linux-arm-kernel-bounces+infradead-linux-arm-kernel=archiver.kernel.org@lists.infradead.org DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.20170209; h=Sender: Content-Transfer-Encoding:Content-Type:Cc:List-Subscribe:List-Help:List-Post: List-Archive:List-Unsubscribe:List-Id:In-Reply-To:MIME-Version:References: Message-ID:Subject:To:From:Date:Reply-To:Content-ID:Content-Description: Resent-Date:Resent-From:Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID: List-Owner; bh=Ru1sRI84QbtOnYXnPAWCUvIt+GkOEgl9zV3ItqwjtPk=; b=Lbon4ivKAk5wfv OyP/RCjKqliIjsIctwl4Wc3oTnpepdvH8+ZcQyMlsTjIGrUNMS7FQaNSNF3CR7IJmJOCKKhA902lp IiCg9y+6d5enOp3+DVqvRj+e+ENdrvNYg+JQfvbPHOhQhNiYsp38pIrpio/qS9dBQWhXf3QG+6lQY 2RUSh9VuxylVQkVl4mKNNMlN0CBd2BXMm+O0XS78K1LtGiNvDNJ6bhGZr9dNVtVYsGL7mzx8A9QaA 4BqZHOtkZSlQrnQX+vKHt3zL8d0awcir3yF67N3CbTA4QDDdSaNoyerUAshP4VUdIsINPORdN7DF1 30dU+yTo4X7muMTTt6Fg==; Received: from localhost ([127.0.0.1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.92.3 #3 (Red Hat Linux)) id 1jbMYs-00082s-Vj; Wed, 20 May 2020 11:06:58 +0000 Received: from foss.arm.com ([217.140.110.172]) by bombadil.infradead.org with esmtp (Exim 4.92.3 #3 (Red Hat Linux)) id 1jbMYq-00082Q-Kh for linux-arm-kernel@lists.infradead.org; Wed, 20 May 2020 11:06:58 +0000 Received: from usa-sjc-imap-foss1.foss.arm.com (unknown [10.121.207.14]) by usa-sjc-mx-foss1.foss.arm.com (Postfix) with ESMTP id 0F1C031B; Wed, 20 May 2020 04:06:56 -0700 (PDT) Received: from arm.com (usa-sjc-imap-foss1.foss.arm.com [10.121.207.14]) by usa-sjc-imap-foss1.foss.arm.com (Postfix) with ESMTPSA id 2AF153F68F; Wed, 20 May 2020 04:06:55 -0700 (PDT) Date: Wed, 20 May 2020 12:06:53 +0100 From: Dave Martin To: Will Deacon Subject: Re: [PATCH v2 2/2] arm64: vdso: Fix CFI directives in sigreturn trampoline Message-ID: <20200520110652.GO5031@arm.com> References: <20200519162821.16857-1-will@kernel.org> <20200519162821.16857-3-will@kernel.org> <20200520104803.GA25694@willie-the-truck> MIME-Version: 1.0 Content-Disposition: inline In-Reply-To: <20200520104803.GA25694@willie-the-truck> User-Agent: Mutt/1.5.23 (2014-03-12) X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20200520_040656_719937_DBC347E3 X-CRM114-Status: GOOD ( 23.88 ) X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: Tamas Zsoldos , Mark Brown , kernel-team@android.com, linux-arm-kernel@lists.infradead.org, Daniel Kiss Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: base64 Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+infradead-linux-arm-kernel=archiver.kernel.org@lists.infradead.org T24gV2VkLCBNYXkgMjAsIDIwMjAgYXQgMTE6NDg6MDNBTSArMDEwMCwgV2lsbCBEZWFjb24gd3Jv dGU6Cj4gT24gVHVlLCBNYXkgMTksIDIwMjAgYXQgMDU6Mjg6MjFQTSArMDEwMCwgV2lsbCBEZWFj b24gd3JvdGU6Cj4gPiBEYW5pZWwgcmVwb3J0cyB0aGF0IHRoZSAuY2ZpX3N0YXJ0cHJvYyBpcyBt aXNwbGFjZWQgZm9yIHRoZSBzaWdyZXR1cm4KPiA+IHRyYW1wb2xpbmUsIHdoaWNoIGNhdXNlcyBM TFZNJ3MgdW53aW5kZXIgdG8gbWlzYmVoYXZlOgo+ID4gCj4gPiAgIHwgSSBydW4gaW50byB0aGlz IHdpdGggTExWTeKAmXMgdW53aW5kZXIuCj4gPiAgIHwgVGhpcyBjb21iaW5hdGlvbiB3YXMgYWx3 YXlzIGJyb2tlbi4KPiA+IAo+ID4gVGhpcyBwcm9tcHRlZCBEYXZlIHRvIHF1ZXN0aW9uIG91ciB1 c2Ugb2YgQ0ZJIGRpcmVjdGl2ZXMgbW9yZSBnZW5lcmFsbHksCj4gPiBhbmQgSSBlbmRlZCB1cCBn b2luZyBkb3duIGEgcmFiYml0IGhvbGUgdHJ5aW5nIHRvIGZpZ3VyZSBvdXQgaG93IHRoaXMKPiA+ IHZlcnkgcG9vcmx5IGRvY3VtZW50ZWQgc3R1ZmYgZ2V0cyB1c2VkLgo+ID4gCj4gPiBNb3ZlIHRo ZSBDRkkgZGlyZWN0aXZlcyBzbyB0aGF0IHRoZSAibXlzdGVyaW91cyBOT1AiIGlzIGluY2x1ZGVk IGluCj4gPiB0aGUgLmNmaV97c3RhcnQsZW5kfXByb2MgYmxvY2sgYW5kIGFkZCBhIGJ1bmNoIG9m IGNvbW1lbnRzIHNvIHRoYXQgSQo+ID4gY2FuIHNhdmUgbXlzZWxmIGFub3RoZXIgaGVhZGFjaGUg aW4gZnV0dXJlLgo+ID4gCj4gPiBDYzogVGFtYXMgWnNvbGRvcyA8dGFtYXMuenNvbGRvc0Bhcm0u Y29tPgo+ID4gUmVwb3J0ZWQtYnk6IERhdmUgTWFydGluIDxkYXZlLm1hcnRpbkBhcm0uY29tPgo+ ID4gUmVwb3J0ZWQtYnk6IERhbmllbCBLaXNzIDxkYW5pZWwua2lzc0Bhcm0uY29tPgo+ID4gU2ln bmVkLW9mZi1ieTogV2lsbCBEZWFjb24gPHdpbGxAa2VybmVsLm9yZz4KPiA+IC0tLQo+ID4gIGFy Y2gvYXJtNjQva2VybmVsL3Zkc28vc2lncmV0dXJuLlMgfCA0MCArKysrKysrKysrKysrKysrKysr KysrKystLS0tLS0KPiA+ICAxIGZpbGUgY2hhbmdlZCwgMzMgaW5zZXJ0aW9ucygrKSwgNyBkZWxl dGlvbnMoLSkKPiA+IAo+ID4gZGlmZiAtLWdpdCBhL2FyY2gvYXJtNjQva2VybmVsL3Zkc28vc2ln cmV0dXJuLlMgYi9hcmNoL2FybTY0L2tlcm5lbC92ZHNvL3NpZ3JldHVybi5TCj4gPiBpbmRleCAw YzkyMTEzMDAwMmEuLmNiNDdkZmIzYmQ1YSAxMDA2NDQKPiA+IC0tLSBhL2FyY2gvYXJtNjQva2Vy bmVsL3Zkc28vc2lncmV0dXJuLlMKPiA+ICsrKyBiL2FyY2gvYXJtNjQva2VybmVsL3Zkc28vc2ln cmV0dXJuLlMKPiA+IEBAIC0xLDcgKzEsMTEgQEAKPiA+ICAvKiBTUERYLUxpY2Vuc2UtSWRlbnRp ZmllcjogR1BMLTIuMC1vbmx5ICovCj4gPiAgLyoKPiA+ICAgKiBTaWdyZXR1cm4gdHJhbXBvbGlu ZSBmb3IgcmV0dXJuaW5nIGZyb20gYSBzaWduYWwgd2hlbiB0aGUgU0FfUkVTVE9SRVIKPiA+IC0g KiBmbGFnIGlzIG5vdCBzZXQuCj4gPiArICogZmxhZyBpcyBub3Qgc2V0LiBJdCBzZXJ2ZXMgcHJp bWFyaWx5IGFzIGEgaGFsbCBvZiBzaGFtZSBmb3IgY3JhcHB5Cj4gPiArICogdW53aW5kZXJzIGFu ZCBmZWF0dXJlcyBhbiBleGNpdGluZyBidXQgbXlzdGVyaW91cyBOT1AgaW5zdHJ1Y3Rpb24uCj4g PiArICoKPiA+ICsgKiBJdCdzIGFsc28gZnJhZ2lsZSBhcyBoZWxsLCBzbyBwbGVhc2UgdGhpbmsg dHdpY2UgYmVmb3JlIGNoYW5naW5nIGFueXRoaW5nCj4gPiArICogaW4gaGVyZS4KPiA+ICAgKgo+ ID4gICAqIENvcHlyaWdodCAoQykgMjAxMiBBUk0gTGltaXRlZAo+ID4gICAqCj4gPiBAQCAtMTQs NyArMTgsMzQgQEAKPiA+ICAKPiA+ICAJLnRleHQKPiA+ICAKPiA+IC0Jbm9wCj4gPiArLyogRW5z dXJlIHRoYXQgdGhlIG15c3RlcmlvdXMgTk9QIGNhbiBiZSBhc3NvY2lhdGVkIHdpdGggYSBmdW5j dGlvbi4gKi8KPiA+ICsJLmNmaV9zdGFydHByb2MKPiA+ICsKPiA+ICsvKgo+ID4gKyAqIC5jZmlf c2lnbmFsX2ZyYW1lIGNhdXNlcyB0aGUgY29ycmVzcG9uZGluZyBGcmFtZSBEZXNjcmlwdGlvbiBF bnRyeSBpbiB0aGUKPiA+ICsgKiAuZWhfZnJhbWUgc2VjdGlvbiB0byBiZSBhbm5vdGF0ZWQgYXMg YSBzaWduYWwgZnJhbWUuIFRoaXMgYWxsb3dzIERXQVJGCj4gPiArICogdW53aW5kZXJzIChlLmcu IGxpYnN0ZGMrKykgdG8gaW1wbGVtZW50IF9VbndpbmRfR2V0SVBJbmZvKCksIHdoaWNoIHBlcm1p dHMKPiA+ICsgKiB1bndpbmRpbmcgb3V0IG9mIHRoZSBzaWduYWwgdHJhbXBvbGluZSB3aXRob3V0 IHRoZSBuZWVkIGZvciB0aGUgbXlzdGVyaW91cwo+ID4gKyAqIE5PUC4KPiA+ICsgKi8KPiA+ICsJ LmNmaV9zaWduYWxfZnJhbWUKPiA+ICsKPiA+ICsvKgo+ID4gKyAqIFRlbGwgdGhlIHVud2luZGVy IHdoZXJlIHRvIGxvY2F0ZSB0aGUgZnJhbWUgcmVjb3JkIGxpbmtpbmcgYmFjayB0byB0aGUKPiA+ ICsgKiBpbnRlcnJ1cHRlZCBjb250ZXh0Lgo+ID4gKyAqLwo+ID4gKwkuY2ZpX2RlZl9jZmEgICAg eDI5LCAwCj4gPiArCS5jZmlfb2Zmc2V0ICAgICB4MjksIDAgKiA4Cj4gPiArCS5jZmlfb2Zmc2V0 ICAgICB4MjksIDEgKiA4Cj4gCj4gT29wcywganVzdCBzcG90dGVkIHRoaXMgYnVnOiBzZWNvbmQg ZW50cnkgc2hvdWxkIGJlIHgzMC4KCkRhbmcsIGRpZG4ndCBzcG90IHRoYXQuICBZZXMuCgpNdXN0 IGhhdmUgYmVlbiBtb21vcnkgY29ycnVwdGlvbiBpbiB5b3VyIGVkaXRvci4uLgoKQ2hlZXJzCi0t LURhdmUKCl9fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fCmxp bnV4LWFybS1rZXJuZWwgbWFpbGluZyBsaXN0CmxpbnV4LWFybS1rZXJuZWxAbGlzdHMuaW5mcmFk ZWFkLm9yZwpodHRwOi8vbGlzdHMuaW5mcmFkZWFkLm9yZy9tYWlsbWFuL2xpc3RpbmZvL2xpbnV4 LWFybS1rZXJuZWwK