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Wed, 24 Aug 2022 09:16:54 +0100 From: David Laight To: 'Christophe Leroy' , Baoquan He CC: "linux-kernel@vger.kernel.org" , "linux-mm@kvack.org" , "akpm@linux-foundation.org" , "hch@infradead.org" , "agordeev@linux.ibm.com" , "wangkefeng.wang@huawei.com" , "linux-arm-kernel@lists.infradead.org" Subject: RE: [PATCH v2 01/11] mm/ioremap: change the return value of io[re|un]map_allowed and rename Thread-Topic: [PATCH v2 01/11] mm/ioremap: change the return value of io[re|un]map_allowed and rename Thread-Index: AQHYtCxluEXLt15y9kSkQpSsai/RVK26d60AgAEsPgCAAFTlgIAApOwAgAADPgCAARm6UA== Date: Wed, 24 Aug 2022 08:16:54 +0000 Message-ID: References: <20220820003125.353570-1-bhe@redhat.com> <20220820003125.353570-2-bhe@redhat.com> <429cb367-923f-bb3d-ccf0-57dce0c7f35b@csgroup.eu> In-Reply-To: <429cb367-923f-bb3d-ccf0-57dce0c7f35b@csgroup.eu> Accept-Language: en-GB, en-US X-MS-Has-Attach: X-MS-TNEF-Correlator: x-ms-exchange-transport-fromentityheader: Hosted x-originating-ip: [10.202.205.107] MIME-Version: 1.0 X-Mimecast-Spam-Score: 0 X-Mimecast-Originator: aculab.com Content-Language: en-US X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20220824_011706_756540_91122AEE X-CRM114-Status: GOOD ( 25.73 ) 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="utf-8" Content-Transfer-Encoding: base64 Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.org RnJvbTogQ2hyaXN0b3BoZSBMZXJveQ0KPiBTZW50OiAyMyBBdWd1c3QgMjAyMiAxNjoyNg0KPiAN Cj4gTGUgMjMvMDgvMjAyMiDDoCAxNzoxNCwgQmFvcXVhbiBIZSBhIMOpY3JpdMKgOg0KPiA+IE9u IDA4LzIzLzIyIGF0IDA1OjI0YW0sIENocmlzdG9waGUgTGVyb3kgd3JvdGU6DQo+ID4+DQo+ID4+ DQo+ID4+IExlIDIzLzA4LzIwMjIgw6AgMDI6MjAsIEJhb3F1YW4gSGUgYSDDqWNyaXTCoDoNCj4g Pj4+IE9uIDA4LzIyLzIyIGF0IDA2OjI1YW0sIENocmlzdG9waGUgTGVyb3kgd3JvdGU6DQo+ID4+ Pj4NCj4gPj4+Pg0KPiA+Pj4+IExlIDIwLzA4LzIwMjIgw6AgMDI6MzEsIEJhb3F1YW4gSGUgYSDD qWNyaXTCoDoNCj4gPj4+Pj4gSW4gc29tZSBhcmNoaXRlY3R1cmVzLCB0aGVyZSBhcmUgQVJDSCBz cGVjaWZpY2kgaW8gYWRkcmVzcyBtYXBwaW5nDQo+ID4+Pj4+IGhhbmRsaW5nIHdoZW4gY2FsbGlu ZyBpb3JlbWFwKCkgb3IgaW9yZW1hcF9wcm90KCksIGUuZywgYXJjLCBpYTY0LA0KPiA+Pj4+PiBv cGVucmlzYywgczM5MCwgc2guDQo+ID4+Pj4+DQo+ID4+Pj4+IEluIG9kZXIgdG8gY29udmVydCB0 aGVtIHRvIHRha2UgR0VORVJJQ19JT1JFTUFQIG1ldGhvZCwgd2UgbmVlZCBjaGFuZ2UNCj4gPj4+ Pj4gdGhlIHJldHVybiB2YWx1ZSBvZiBob29rIGlvcmVtYXBfYWxsb3dlZCgpIGFuZCBpb3VubWFw X2FsbG93ZWQoKS4NCj4gPj4+Pj4gTWVhbndoaWxlLCByZW5hbWUgdGhlbSB0byBhcmNoX2lvcmVt YXAoKSBhbmQgYXJjaF9pb3VubWFwKCkgdG8gcmVmbGVjdA0KPiA+Pj4+PiB0aGVpciBjdXJyZW50 IGJlaGF2aW91ci4NCj4gPj4+DQo+ID4+PiBUaGFua3MgZm9yIHJldmlld2luZy4NCj4gPj4+DQo+ ID4+Pj4NCj4gPj4+PiBQbGVhc2UgZG9uJ3QganVzdCBzYXkgeW91IG5lZWQgdG8gY2hhbmdlIHRo ZSByZXR1cm4gdmFsdWUuIEV4cGxhaW4gd2h5Lg0KPiA+Pj4NCj4gPj4+IFRoZSAxc3QgcGFyYWdy YXBoIGFuZCB0aGUgc2VudGVuY2UgJ0luIG9kZXIgdG8gY29udmVydCB0aGVtIHRvIHRha2UNCj4g Pj4+IEdFTkVSSUNfSU9SRU1BUCBtZXRob2QnIHRlbGwgdGhlIHJlYXNvbiwgbm8/DQo+ID4+DQo+ ID4+IFdoYXQgSSB3b3VsZCBsaWtlIHRvIHJlYWQgaXMgX3doeV8geW91IG5lZWQgdG8gY2hhbmdl IHRoZSByZXR1cm4gdmFsdWUNCj4gPj4gaW4gb3JkZXIgdG8gY29udmVydCB0byBHRU5FUklDX0lP UkVNQVANCj4gPg0KPiA+IEkgcmVwaHJhc2UgdGhlIGxvZyBhcyBiZWxvdywgaXQncyBPSyB0byB5 b3U/IE9yIHBsZWFzZSBoZWxwIGNoZWNrIGFuZA0KPiA+IHRlbGwgd2hhdCBJIG5lZWQgdG8gaW1w cm92ZSB0byBiZXR0ZXIgZXhwbGFpbiB0aGUgcmVhc29uLg0KPiA+DQo+ID4gPT09PQ0KPiA+IFRo ZSBjdXJyZW50IGlvW3JlfHVuXW1hcF9hbGxvd2VkKCkgaG9va3MgYXJlIHVzZWQgdG8gY2hlY2sg aWYgdGhlDQo+ID4gaW9bcmV8dW5dbWFwKCkgYWN0aW9ucyBhcmUgcXVhbGlmaWVkIHRvIHByb2Nl ZWQgd2hlbiB0YWtpbmcNCj4gPiBHRU5FUklDX0lPUkVNQVAgd2F5IHRvIGRvIGlvcmVtYXAoKS9p b3VubWFwKCkuIE90aGVyd2lzZSBpb1tyZXx1bl1tYXAoKQ0KPiA+IHdpbGwgcmV0dXJuIE5VTEwu DQo+ID4NCj4gPiBPbiBzb21lIGFyY2hpdGVjdHVyZXMgbGlrZSBhcmMsIGlhNjQsIG9wZW5yaXMs IHMzOTAsIHNoLCB0aGVyZSBhcmUNCj4gPiBBUkNIIHNwZWNpZmljIGlvIGFkZHJlc3MgbWFwcGlu ZyB0byB0cmFuc2xhdGUgdGhlIHBhc3NlZCBpbiBwaHlzaWNhbA0KPiA+IGFkZHJlc3MgdG8gaW8g YWRkcmVzcyB3aGVuIGNhbGxpbmcgaW9yZW1hcCgpLiBJbiBvcmRlciB0byBjb252ZXJ0DQo+ID4g dGhlc2UgYXJjaGl0ZWN0dXJlcyB0byB0YWtlIEdFTkVSSUNfSU9SRU1BUCB3YXkgdG8gaW9yZW1h cCgpLCB3ZSBuZWVkDQo+ID4gY2hhbmdlIHRoZSByZXR1cm4gdmFsdWUgb2YgaG9vayBpb3JlbWFw X2FsbG93ZWQoKSBhbmQgaW91bm1hcF9hbGxvd2VkKCkuDQo+ID4gV2l0aCB0aGUgY2hhbmdlLCB3 ZSBjYW4gbW92ZSB0aGUgYXJjaGl0ZWN0dXJlIHNwZWNpZmljIGlvIGFkZHJlc3MNCj4gPiBtYXBw aW5nIGludG8gaW9yZW1hcF9hbGxvd2VkKCkgaG9vaywgYW5kIGdpdmUgdGhlIG1hcHBlZCBpbyBh ZGRyZXNzDQo+ID4gb3V0IHRvIGxldCBpb3JlbWFwX3Byb3QoKSByZXR1cm4gaXQuIFdoaWxlIGF0 IGl0LCByZW5hbWUgdGhlIGhvb2tzIHRvDQo+ID4gYXJjaF9pb3JlbWFwKCkgYW5kIGFyY2hfaW91 bm1hcCgpIHRvIHJlZmxlY3QgdGhlaXIgbmV3IGJlaGF2aW91ci4NCj4gPiA9PT09DQo+ID4NCj4g DQo+IFRoYXQgbG9va3MgbW9yZSBpbiBsaW5lIHdpdGggdGhlIHR5cGUgb2YgZXhwbGFuYXRpb24g SSBmb3Jlc2VlIGluIHRoZQ0KPiBjb21taXQgbWVzc2FnZSwgdGhhbmtzLg0KDQpJIHRoaW5rIHlv dSBhbHNvIG5lZWQgdG8gc3VtbWFyaXNlIHRoZSBjaGFuZ2UgaXRzZWxmLg0KSWYgdGhlIHN1Y2Nl c3MvZmFpbCByZXR1cm4gYWN0dWFsbHkgY2hhbmdlcyB0aGVuIHlvdSByZWFsbHkNCm5lZWQgdG8g Y2hhbmdlIHNvbWV0aGluZyBzbyB0aGUgY29tcGlsZXIgZXJyb3JzIHVuY2hhbmdlZCBjb2RlLg0K T3RoZXJ3aXNlIGl0IGlzIGEgY29tcGxldGUgcmVjaXBlIGZvciBkaXNhc3Rlci4NCg0KCURhdmlk DQoNCi0NClJlZ2lzdGVyZWQgQWRkcmVzcyBMYWtlc2lkZSwgQnJhbWxleSBSb2FkLCBNb3VudCBG YXJtLCBNaWx0b24gS2V5bmVzLCBNSzEgMVBULCBVSw0KUmVnaXN0cmF0aW9uIE5vOiAxMzk3Mzg2 IChXYWxlcykNCl9fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19f CmxpbnV4LWFybS1rZXJuZWwgbWFpbGluZyBsaXN0CmxpbnV4LWFybS1rZXJuZWxAbGlzdHMuaW5m cmFkZWFkLm9yZwpodHRwOi8vbGlzdHMuaW5mcmFkZWFkLm9yZy9tYWlsbWFuL2xpc3RpbmZvL2xp bnV4LWFybS1rZXJuZWwK