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Tue, 13 Apr 2021 10:12:27 -0400 Received: from AcuMS.aculab.com (156.67.243.121 [156.67.243.121]) (Using TLS) by relay.mimecast.com with ESMTP id uk-mta-278-AvhJ3iXtMyqzl2W9G4PAMw-1; Tue, 13 Apr 2021 15:12:05 +0100 X-MC-Unique: AvhJ3iXtMyqzl2W9G4PAMw-1 Received: from AcuMS.Aculab.com (fd9f:af1c:a25b:0:994c:f5c2:35d6:9b65) by AcuMS.aculab.com (fd9f:af1c:a25b:0:994c:f5c2:35d6:9b65) with Microsoft SMTP Server (TLS) id 15.0.1497.2; Tue, 13 Apr 2021 15:12:04 +0100 Received: from AcuMS.Aculab.com ([fe80::994c:f5c2:35d6:9b65]) by AcuMS.aculab.com ([fe80::994c:f5c2:35d6:9b65%12]) with mapi id 15.00.1497.012; Tue, 13 Apr 2021 15:12:03 +0100 From: David Laight To: 'Arnd Bergmann' CC: Niklas Schnelle , Nathan Chancellor , Nick Desaulniers , clang-built-linux , linux-arch , Linux Kernel Mailing List , linux-s390 , "Guo Ren" Subject: RE: [PATCH] asm-generic/io.h: Silence -Wnull-pointer-arithmetic warning on PCI_IOBASE Thread-Topic: [PATCH] asm-generic/io.h: Silence -Wnull-pointer-arithmetic warning on PCI_IOBASE Thread-Index: AQHXMGSVFmL3q8InjEiRDqC8qAyY5Kqyacdg///5xgCAABWwYA== Date: Tue, 13 Apr 2021 14:12:03 +0000 Message-ID: <40d4114fa34043d0841b81d09457c415@AcuMS.aculab.com> References: <20210413115439.1011560-1-schnelle@linux.ibm.com> <84ab737edbe13d390373850bf317920b3a486b87.camel@linux.ibm.com> <11ead5c2c73c42cbbeef32966bc7e5c2@AcuMS.aculab.com> In-Reply-To: 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 Authentication-Results: relay.mimecast.com; auth=pass smtp.auth=C51A453 smtp.mailfrom=david.laight@aculab.com X-Mimecast-Spam-Score: 0 X-Mimecast-Originator: aculab.com Content-Language: en-US Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: base64 Precedence: bulk List-ID: X-Mailing-List: linux-arch@vger.kernel.org RnJvbTogQXJuZCBCZXJnbWFubg0KPiBTZW50OiAxMyBBcHJpbCAyMDIxIDE0OjQwDQo+IA0KPiBP biBUdWUsIEFwciAxMywgMjAyMSBhdCAzOjA2IFBNIERhdmlkIExhaWdodCA8RGF2aWQuTGFpZ2h0 QGFjdWxhYi5jb20+IHdyb3RlOg0KPiA+DQo+ID4gRnJvbTogQXJuZCBCZXJnbWFubg0KPiA+ID4g U2VudDogMTMgQXByaWwgMjAyMSAxMzo1OA0KPiA+IC4uLg0KPiA+ID4gVGhlIHJlbWFpbmluZyBv bmVzIChjc2t5LCBtNjhrLCBzcGFyYzMyKSBuZWVkIHRvIGJlIGluc3BlY3RlZA0KPiA+ID4gbWFu dWFsbHkgdG8gc2VlIGlmIHRoZXkgY3VycmVudGx5IHN1cHBvcnQgUENJIEkvTyBzcGFjZSBidXQg aW4NCj4gPiA+IGZhY3QgdXNlIGFkZHJlc3MgemVybyBhcyB0aGUgYmFzZSAod2l0aCBsYXJnZSBy ZXNvdXJjZXMpIG9yIHRoZXkNCj4gPiA+IHNob3VsZCBhbHNvIHR1cm4gdGhlIG9wZXJhdGlvbnMg aW50byBhIE5PUC4NCj4gPg0KPiA+IEknZCBleHBlY3Qgc3BhcmMzMiB0byB1c2UgYW4gQVNJIHRv IGFjY2VzcyBQQ0kgSU8gc3BhY2UuDQo+ID4gSSBjYW4ndCBxdWl0ZSByZW1lbWJlciB3aGV0aGVy IElPIHNwYWNlIHdhcyBzdXBwb3J0ZWQgYXQgYWxsLg0KPiANCj4gSSBzZWUgdGhpcyBiaXQgaW4g YXJjaC9zcGFyYy9rZXJuZWwvbGVvbl9wY2kuYw0KPiANCj4gICogUENJIE1lbW9yeSBhbmQgUHJl ZmV0Y2hhYmxlIE1lbW9yeSBpcyBkaXJlY3QtbWFwcGVkLiBIb3dldmVyIEkvTyBTcGFjZSBpcw0K PiAgKiBhY2Nlc3NlZCB0aHJvdWdoIGEgV2luZG93IHdoaWNoIGlzIHRyYW5zbGF0ZWQgdG8gbG93 IDY0S0IgaW4gUENJIHNwYWNlLCB0aGUNCj4gICogZmlyc3QgNEtCIGlzIG5vdCB1c2VkIHNvIDYw S0IgaXMgYXZhaWxhYmxlLg0KPiAuLi4NCj4gICAgICAgICBwY2lfYWRkX3Jlc291cmNlX29mZnNl dCgmcmVzb3VyY2VzLCAmaW5mby0+aW9fc3BhY2UsDQo+ICAgICAgICAgICAgICAgICAgICAgICAg ICAgICAgICAgaW5mby0+aW9fc3BhY2Uuc3RhcnQgLSAweDEwMDApOw0KPiANCj4gd2hpY2ggbWVh bnMgdGhhdCB0aGVyZSBpcyBJL08gc3BhY2UsIHdoaWNoIGdldHMgYWNjZXNzZWQgdGhyb3VnaCB3 aGljaGV2ZXINCj4gbWV0aG9kIHJlYWRiKCkgdXNlcy4gSGF2aW5nIHRoZSBvZmZzZXQgZXF1YWwg dG8gdGhlIHJlc291cmNlIG1lYW5zIHRoYXQNCj4gdGhlICcodm9pZCAqKTAnIHN0YXJ0IGlzIGNv cnJlY3QuDQoNCkl0IG11c3QgaGF2ZSBiZWVuIHRoZSBWTUVidXMgKGFuZCBtYXliZSBzQnVzKSBz cGFyYyB0aGF0IHVzZWQgYW4gQVNJLg0KDQpJIGRvIHJlbWVtYmVyIGlzc3VlcyB3aXRoIFNvbGFy aXMgb2Ygc29tZSBQQ0kgY2FyZHMgbm90IGxpa2luZw0KYmVpbmcgYXNzaWduZWQgYSBCQVIgYWRk cmVzcyBvZiB6ZXJvLg0KVGhhdCBtYXkgYmUgd2h5IHRoZSBsb3cgNGsgSU8gc3BhY2UgaXNuJ3Qg YXNzaWduZWQgaGVyZS4NCihJJ3ZlIG5ldmVyIHJ1biBMaW51eCBvbiBzcGFyYywganVzdCBTVlI0 IGFuZCBTb2xhcmlzLikNCg0KSSBndWVzcyBzZXR0aW5nIFBDSV9JT0JBU0UgdG8gemVybyBpcyBz YWZlciB3aGVuIHlvdSBjYW4ndCB0cnVzdA0KZHJpdmVycyBub3QgdG8gdXNlIGluYigpIGluc3Rl YWQgb2YgcmVhZGIoKS4NCk9yIHdoYXRldmVyIGlvX3JlYWQoKSBlbmRzIHVwIGJlaW5nLg0KDQoJ RGF2aWQNCg0KLQ0KUmVnaXN0ZXJlZCBBZGRyZXNzIExha2VzaWRlLCBCcmFtbGV5IFJvYWQsIE1v dW50IEZhcm0sIE1pbHRvbiBLZXluZXMsIE1LMSAxUFQsIFVLDQpSZWdpc3RyYXRpb24gTm86IDEz OTczODYgKFdhbGVzKQ0K