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 49F77C433EF for ; Mon, 20 Jun 2022 03:00:45 +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-Type: Content-Transfer-Encoding:List-Subscribe:List-Help:List-Post:List-Archive: List-Unsubscribe:List-Id:In-Reply-To:From:References:CC:To:Subject: MIME-Version:Date:Message-ID:Reply-To:Content-ID:Content-Description: Resent-Date:Resent-From:Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID: List-Owner; bh=e62MWrsq13Q14Sd3aYT2CfexVSfBWEp516NDrzz7B3o=; b=znDM+ABlQKp0ou zcGYwvPIy99lEo/T5rpmUaxKVk2f/KvAvAk1rc33GC+QFTB/vaIqIT1Me8EpCtYoTTAQVtxtMETv2 UErAQzxu+Y+lsnC8MLp2KnRe1CyfTgtSzK8R5nlYDApSN3B/eV6g7MPMBTlVqYdpQtB3jY+8RUB3I E2T5J6bvwnEkrjk7VLmUb9rpulRupan6QmYSiT130jTwJ22mhNP/bjTc2ZlKjdHioaWAYVNd6+lut RfcCDfJKABLf3qdROO6GscEfrFzWB43HLpAtDL9jS9b0F08yCZRhv8GBMFDQWwqxYI5cikc3IBHfF U8TOv8miI/Pd348ApcNQ==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.94.2 #2 (Red Hat Linux)) id 1o37dM-00Ftli-Ly; Mon, 20 Jun 2022 02:59:24 +0000 Received: from szxga01-in.huawei.com ([45.249.212.187]) by bombadil.infradead.org with esmtps (Exim 4.94.2 #2 (Red Hat Linux)) id 1o37dI-00FtjV-Fa for linux-arm-kernel@lists.infradead.org; Mon, 20 Jun 2022 02:59:22 +0000 Received: from dggemv704-chm.china.huawei.com (unknown [172.30.72.56]) by szxga01-in.huawei.com (SkyGuard) with ESMTP id 4LRDq03r7NzkWYp; Mon, 20 Jun 2022 10:58:04 +0800 (CST) Received: from kwepemm600017.china.huawei.com (7.193.23.234) by dggemv704-chm.china.huawei.com (10.3.19.47) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256) id 15.1.2375.24; Mon, 20 Jun 2022 10:59:14 +0800 Received: from [10.174.179.234] (10.174.179.234) by kwepemm600017.china.huawei.com (7.193.23.234) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256) id 15.1.2375.24; Mon, 20 Jun 2022 10:59:12 +0800 Message-ID: <684f0362-6e58-753d-32e1-112c6ffe6d12@huawei.com> Date: Mon, 20 Jun 2022 10:59:12 +0800 MIME-Version: 1.0 User-Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:91.0) Gecko/20100101 Thunderbird/91.8.0 Subject: Re: [PATCH -next v5 2/8] arm64: extable: make uaaccess helper use extable type EX_TYPE_UACCESS_ERR_ZERO To: Mark Rutland CC: James Morse , Andrew Morton , Thomas Gleixner , "Ingo Molnar" , Borislav Petkov , Robin Murphy , Dave Hansen , "Catalin Marinas" , Will Deacon , "Alexander Viro" , Michael Ellerman , Benjamin Herrenschmidt , Paul Mackerras , , "H . Peter Anvin" , , , , , Kefeng Wang , Xie XiuQi , Guohanjun References: <20220528065056.1034168-1-tongtiangen@huawei.com> <20220528065056.1034168-3-tongtiangen@huawei.com> <4371a7c9-8766-9fee-2558-e6f43f06ad19@huawei.com> <0da734f3-5743-3df3-3f90-d92e5bd585ce@huawei.com> From: Tong Tiangen In-Reply-To: X-Originating-IP: [10.174.179.234] X-ClientProxiedBy: dggems704-chm.china.huawei.com (10.3.19.181) To kwepemm600017.china.huawei.com (7.193.23.234) X-CFilter-Loop: Reflected X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20220619_195920_918295_51AB712A X-CRM114-Status: GOOD ( 12.66 ) 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-Transfer-Encoding: base64 Content-Type: text/plain; charset="utf-8"; Format="flowed" Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.org CgrlnKggMjAyMi82LzE4IDIwOjQwLCBNYXJrIFJ1dGxhbmQg5YaZ6YGTOgo+IE9uIFNhdCwgSnVu IDE4LCAyMDIyIGF0IDA0OjQyOjA2UE0gKzA4MDAsIFRvbmcgVGlhbmdlbiB3cm90ZToKPj4+Pj4g ZGlmZiAtLWdpdCBhL2FyY2gvYXJtNjQvaW5jbHVkZS9hc20vYXNtLWV4dGFibGUuaAo+Pj4+PiBi L2FyY2gvYXJtNjQvaW5jbHVkZS9hc20vYXNtLWV4dGFibGUuaAo+Pj4+PiBpbmRleCA1NmViZTE4 M2U3OGIuLjljOTRhYzFmMDgyYyAxMDA2NDQKPj4+Pj4gLS0tIGEvYXJjaC9hcm02NC9pbmNsdWRl L2FzbS9hc20tZXh0YWJsZS5oCj4+Pj4+ICsrKyBiL2FyY2gvYXJtNjQvaW5jbHVkZS9hc20vYXNt LWV4dGFibGUuaAo+Pj4+PiBAQCAtMjgsNiArMjgsMTQgQEAKPj4+Pj4gIMKgwqDCoMKgwqAgX19B U01fRVhUQUJMRV9SQVcoXGluc24sIFxmaXh1cCwgRVhfVFlQRV9GSVhVUCwgMCkKPj4+Pj4gIMKg wqDCoMKgwqAgLmVuZG0KPj4+Pj4gKy8qCj4+Pj4+ICsgKiBDcmVhdGUgYW4gZXhjZXB0aW9uIHRh YmxlIGVudHJ5IGZvciB1YWNjZXNzIGBpbnNuYCwgd2hpY2gKPj4+Pj4gd2lsbCBicmFuY2ggdG8g YGZpeHVwYAo+Pj4+PiArICogd2hlbiBhbiB1bmhhbmRsZWQgZmF1bHQgaXMgdGFrZW4uCj4+Pj4+ ICsgKiBleC0+ZGF0YSA9IH4wIG1lYW5zIGJvdGggcmVnX2VyciBhbmQgcmVnX3plcm8gaXMgc2V0 IHRvIHd6cih4MzEpLgo+Pj4+PiArICovCj4+Pj4+ICvCoMKgwqAgLm1hY3JvwqDCoMKgwqDCoMKg wqDCoMKgIF9hc21fZXh0YWJsZV91YWNjZXNzLCBpbnNuLCBmaXh1cAo+Pj4+PiArwqDCoMKgIF9f QVNNX0VYVEFCTEVfUkFXKFxpbnNuLCBcZml4dXAsIEVYX1RZUEVfVUFDQ0VTU19FUlJfWkVSTywg fjApCj4+Pj4+ICvCoMKgwqAgLmVuZG0KPj4+Pgo+Pj4+IEknbSBub3QgdG9vIGtlZW4gb24gdXNp bmcgYH4wYCBoZXJlLCBzaW5jZSB0aGF0IGFsc28gc2V0cyBvdGhlciBiaXRzCj4+Pj4gaW4gdGhl Cj4+Pj4gZGF0YSBmaWVsZCwgYW5kIGl0cyBzb21ld2hhdCBvcGFxdWUuCj4+Pj4KPj4+PiBIb3cg cGFpbmZ1bCBpcyBpdCB0byBnZW5lcmF0ZSB0aGUgZGF0YSBmaWVsZHMgYXMgd2l0aCB0aGUgQyB2 ZXJzaW9uCj4+Pj4gb2YgdGhpcwo+Pj4+IG1hY3JvLCBzbyB0aGF0IHdlIGNhbiBwYXNzIGluIHd6 ciBleHBsY2lpdGx5IGZvciB0aGUgdHdvIHN1Yi1maWVsZHM/Cj4+Pj4KPj4+PiBPdGhlciB0aGFu IHRoYXQsIHRoaXMgbG9va3MgZ29vZCB0byBtZS4KPj4+Pgo+Pj4+IFRoYW5rcywKPj4+PiBNYXJr Lgo+Pj4KPj4+IG9rLCB3aWxsIGZpeCBuZXh0IHZlcnNpb24uCj4+Pgo+Pj4gVGhhbmtzLAo+Pj4g VG9uZy4KPj4KPj4gSSB0cmllZCB0byB1c2luZyBkYXRhIGZpbGVsZHMgYXMgd2l0aCBDIHZlcnNp b24sIGJ1dCBoZXJlIGFzc2VtYmx5IGNvZGUgd2UKPj4gY2FuIG5vdCB1c2luZyBvcGVyYXRvciBz dWNoIGFzIDw8IGFuZCB8LCBpZiB3ZSB1c2UgbHNsIGFuZCBvcnIgaW5zdHJ1Y3Rpb25zLAo+PiB0 aGUgZ3ByIHdpbGwgYmUgb2NjdXBpZWQuCj4+Cj4+IFNvIGhvdyBhYm91dCB1c2luZyAweDNmZiBk aXJlY3RseSBoZXJlPyBpdCBtZWFucyBlcnIgcmVnaXN0ZXIgYW5kIHplcm8KPj4gcmVnaXN0ZXIg Ym90aCBzZXQgdG8geDMxLgo+IAo+IEkgaGFkIGEgZ28gYXQgaW1wbGVtZW50aW5nIHRoaXMsIGFu ZCBpdCBzZWVtcyBzaW1wbGUgZW5vdWdoLiBQbGVhc2Ugc2VlOgo+IAo+ICAgIGh0dHBzOi8vZ2l0 Lmtlcm5lbC5vcmcvcHViL3NjbS9saW51eC9rZXJuZWwvZ2l0L21hcmsvbGludXguZ2l0L2xvZy8/ aD1hcm02NC9leHRhYmxlL2FzbS11YWNjZXNzCj4gCgpJIG1hZGUgdGhlIGZvbGxvd2luZyBtb2Rp ZmljYXRpb25zLCBhbmQgdGhlIG90aGVyIHBhcnRzIGFyZSBiYXNlZCBvbiAKeW91ciBpbXBsZW1l bnRhdGlvbjoKCmFyY2gvYXJtNjQvaW5jbHVkZS9hc20vYXNtLWV4dGFibGUuaApbLi4uXQoubWFj cm8gICAgICAgICAgX2FzbV9leHRhYmxlX3VhY2Nlc3MsIGluc24sIGZpeHVwCl9BU01fRVhUQUJM RV9VQUNDRVNTKFxpbnNuLCBcZml4dXApCi5lbmRtClsuLi5dCgoKVGhlIGZvbGxvd2luZyBlcnJv cnMgYXJlIHJlcG9ydGVkIGR1cmluZyBjb21waWxhdGlvbjoKWy4uLl0KYXJjaC9hcm02NC9saWIv Y2xlYXJfdXNlci5TOjQ1OiBFcnJvcjogaW52YWxpZCBvcGVyYW5kcyAoKkFCUyogYW5kICpVTkQq IApzZWN0aW9ucykgZm9yIGA8PCcKWy4uLl0KCiI8PCIgaXMgaW52YWxpZCBvcGVyYW5kcyBpbiBh c3NlbWJseSwgaXMgdGhlcmUgc29tZXRoaW5nIHdyb25nIHdpdGggbWU/CgpUaGFua3MsClRvbmcu Cj4gTWFyay4KPiAKPiAuCgpfX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19f X19fX19fXwpsaW51eC1hcm0ta2VybmVsIG1haWxpbmcgbGlzdApsaW51eC1hcm0ta2VybmVsQGxp c3RzLmluZnJhZGVhZC5vcmcKaHR0cDovL2xpc3RzLmluZnJhZGVhZC5vcmcvbWFpbG1hbi9saXN0 aW5mby9saW51eC1hcm0ta2VybmVsCg==