From mboxrd@z Thu Jan 1 00:00:00 1970 From: Subject: Re: [PATCH 2/3] net: macb: fix dropped RX frames due to a race Date: Wed, 5 Dec 2018 12:38:00 +0000 Message-ID: <79692da1-c097-5fbf-e564-948fc3bc4b3e@microchip.com> References: <20181130182137.27974-1-anssi.hannula@bitwise.fi> <20181130182137.27974-3-anssi.hannula@bitwise.fi> Mime-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: base64 Cc: To: , , Return-path: Received: from esa2.microchip.iphmx.com ([68.232.149.84]:44113 "EHLO esa2.microchip.iphmx.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726149AbeLEMiH (ORCPT ); Wed, 5 Dec 2018 07:38:07 -0500 In-Reply-To: <20181130182137.27974-3-anssi.hannula@bitwise.fi> Content-Language: en-US Content-ID: <6953DF751507CC4AA21CA7F5C4C6D995@namprd11.prod.outlook.com> Sender: netdev-owner@vger.kernel.org List-ID: DQoNCk9uIDMwLjExLjIwMTggMjA6MjEsIEFuc3NpIEhhbm51bGEgd3JvdGU6DQo+IEJpdCBSWF9V U0VEIHNldCB0byAwIGluIHRoZSBhZGRyZXNzIGZpZWxkIGFsbG93cyB0aGUgY29udHJvbGxlciB0 byB3cml0ZQ0KPiBkYXRhIHRvIHRoZSByZWNlaXZlIGJ1ZmZlciBkZXNjcmlwdG9yLg0KPiANCj4g VGhlIGRyaXZlciBkb2VzIG5vdCBlbnN1cmUgdGhlIGN0cmwgZmllbGQgaXMgcmVhZHkgKGNsZWFy ZWQpIHdoZW4gdGhlDQo+IGNvbnRyb2xsZXIgc2VlcyB0aGUgUlhfVVNFRD0wIHdyaXR0ZW4gYnkg dGhlIGRyaXZlci4gVGhlIGN0cmwgZmllbGQgbWlnaHQNCj4gb25seSBiZSBjbGVhcmVkIGFmdGVy IHRoZSBjb250cm9sbGVyIGhhcyBhbHJlYWR5IHVwZGF0ZWQgaXQgYWNjb3JkaW5nIHRvDQo+IGEg bmV3bHkgcmVjZWl2ZWQgZnJhbWUsIGNhdXNpbmcgdGhlIGZyYW1lIHRvIGJlIGRpc2NhcmRlZCBp biBnZW1fcngoKSBkdWUNCj4gdG8gdW5leHBlY3RlZCBjdHJsIGZpZWxkIGNvbnRlbnRzLg0KPiAN Cj4gQSBtZXNzYWdlIGlzIGxvZ2dlZCB3aGVuIHRoZSBhYm92ZSBzY2VuYXJpbyBvY2N1cnM6DQo+ IA0KPiAgIG1hY2IgZmYwYjAwMDAuZXRoZXJuZXQgZXRoMDogbm90IHdob2xlIGZyYW1lIHBvaW50 ZWQgYnkgZGVzY3JpcHRvcg0KPiA+IEZpeCB0aGUgaXNzdWUgYnkgZW5zdXJpbmcgdGhhdCB3aGVu IHRoZSBjb250cm9sbGVyIHNlZXMgUlhfVVNFRD0wIHRoZQ0KPiBjdHJsIGZpZWxkIGlzIGFscmVh ZHkgY2xlYXJlZC4NCj4gDQo+IFRoaXMgaXNzdWUgd2FzIG9ic2VydmVkIG9uIGEgWnlucU1QIGJh c2VkIHN5c3RlbS4NCj4gDQo+IFNpZ25lZC1vZmYtYnk6IEFuc3NpIEhhbm51bGEgPGFuc3NpLmhh bm51bGFAYml0d2lzZS5maT4NCj4gRml4ZXM6IDRkZjk1MTMxZWE4MCAoIm5ldC9tYWNiOiBjaGFu Z2UgUlggcGF0aCBmb3IgR0VNIikNCj4gQ2M6IE5pY29sYXMgRmVycmUgPG5pY29sYXMuZmVycmVA bWljcm9jaGlwLmNvbT4NCj4gLS0tDQo+ICBkcml2ZXJzL25ldC9ldGhlcm5ldC9jYWRlbmNlL21h Y2JfbWFpbi5jIHwgOSArKysrKysrLS0NCj4gIDEgZmlsZSBjaGFuZ2VkLCA3IGluc2VydGlvbnMo KyksIDIgZGVsZXRpb25zKC0pDQo+IA0KPiBkaWZmIC0tZ2l0IGEvZHJpdmVycy9uZXQvZXRoZXJu ZXQvY2FkZW5jZS9tYWNiX21haW4uYyBiL2RyaXZlcnMvbmV0L2V0aGVybmV0L2NhZGVuY2UvbWFj Yl9tYWluLmMNCj4gaW5kZXggMGJjMmFhYjdiZTQwLi40MzBiN2EwZjU0MzYgMTAwNjQ0DQo+IC0t LSBhL2RyaXZlcnMvbmV0L2V0aGVybmV0L2NhZGVuY2UvbWFjYl9tYWluLmMNCj4gKysrIGIvZHJp dmVycy9uZXQvZXRoZXJuZXQvY2FkZW5jZS9tYWNiX21haW4uYw0KPiBAQCAtOTM1LDE0ICs5MzUs MTkgQEAgc3RhdGljIHZvaWQgZ2VtX3J4X3JlZmlsbChzdHJ1Y3QgbWFjYl9xdWV1ZSAqcXVldWUp DQo+ICANCj4gIAkJCWlmIChlbnRyeSA9PSBicC0+cnhfcmluZ19zaXplIC0gMSkNCj4gIAkJCQlw YWRkciB8PSBNQUNCX0JJVChSWF9XUkFQKTsNCj4gLQkJCW1hY2Jfc2V0X2FkZHIoYnAsIGRlc2Ms IHBhZGRyKTsNCj4gIAkJCWRlc2MtPmN0cmwgPSAwOw0KPiArCQkJLyogU2V0dGluZyBhZGRyIGNs ZWFycyBSWF9VU0VEIGFuZCBhbGxvd3MgcmVjZXB0aW9uLA0KPiArCQkJICogbWFrZSBzdXJlIGN0 cmwgaXMgY2xlYXJlZCBmaXJzdCB0byBhdm9pZCBhIHJhY2UuDQo+ICsJCQkgKi8NCj4gKwkJCWRt YV93bWIoKTsNCg0KU2FtZSBoZXJlIGFzIGluIHBhdGNoIDEvMSB3aXRoIHJlZ2FyZHMgdG8gbWVt b3J5IGJhcnJpZXIuDQoNCj4gKwkJCW1hY2Jfc2V0X2FkZHIoYnAsIGRlc2MsIHBhZGRyKTsNCj4g IA0KPiAgCQkJLyogcHJvcGVybHkgYWxpZ24gRXRoZXJuZXQgaGVhZGVyICovDQo+ICAJCQlza2Jf cmVzZXJ2ZShza2IsIE5FVF9JUF9BTElHTik7DQo+ICAJCX0gZWxzZSB7DQo+IC0JCQlkZXNjLT5h ZGRyICY9IH5NQUNCX0JJVChSWF9VU0VEKTsNCj4gIAkJCWRlc2MtPmN0cmwgPSAwOw0KPiArCQkJ ZG1hX3dtYigpOw0KDQpEaXR0bw0KDQo+ICsJCQlkZXNjLT5hZGRyICY9IH5NQUNCX0JJVChSWF9V U0VEKTsNCj4gIAkJfQ0KPiAgCX0NCj4gIA0KPiANCg==