Return-Path: From: Amitkumar Karwar To: Marcel Holtmann CC: "linux-bluetooth@vger.kernel.org" , "linux-kernel@vger.kernel.org" , Cathy Luo , Nishant Sarmukadam , Ganapathi Bhat Subject: RE: [PATCH] btusb: fix zero BD address problem during stress test Date: Fri, 25 Nov 2016 11:21:19 +0000 Message-ID: References: <1476795449-20592-1-git-send-email-akarwar@marvell.com> <077FBE27-DA84-4F11-BC69-F38184CE6B40@holtmann.org> <3926ae98e84248eaa53999e4d466b189@SC-EXCH04.marvell.com> <0175091F-6B2E-49CE-B099-FC6D35C9C1BF@holtmann.org> Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 List-ID: SGkgTWFyY2VsLA0KDQo+IEZyb206IEFtaXRrdW1hciBLYXJ3YXINCj4gU2VudDogV2VkbmVzZGF5 LCBOb3ZlbWJlciAyMywgMjAxNiAzOjE0IFBNDQo+IFRvOiAnTWFyY2VsIEhvbHRtYW5uJw0KPiBD YzogbGludXgtYmx1ZXRvb3RoQHZnZXIua2VybmVsLm9yZzsgbGludXgta2VybmVsQHZnZXIua2Vy bmVsLm9yZzsNCj4gQ2F0aHkgTHVvOyBOaXNoYW50IFNhcm11a2FkYW07IEdhbmFwYXRoaSBCaGF0 DQo+IFN1YmplY3Q6IFJFOiBbUEFUQ0hdIGJ0dXNiOiBmaXggemVybyBCRCBhZGRyZXNzIHByb2Js ZW0gZHVyaW5nIHN0cmVzcw0KPiB0ZXN0DQo+IA0KPiBIaSBNYXJjZWwsDQo+IA0KPiA+IEZyb206 IE1hcmNlbCBIb2x0bWFubiBbbWFpbHRvOm1hcmNlbEBob2x0bWFubi5vcmddDQo+ID4gU2VudDog V2VkbmVzZGF5LCBOb3ZlbWJlciAyMywgMjAxNiAxOjQ2IFBNDQo+ID4gVG86IEFtaXRrdW1hciBL YXJ3YXINCj4gPiBDYzogbGludXgtYmx1ZXRvb3RoQHZnZXIua2VybmVsLm9yZzsgbGludXgta2Vy bmVsQHZnZXIua2VybmVsLm9yZzsNCj4gPiBDYXRoeSBMdW87IE5pc2hhbnQgU2FybXVrYWRhbTsg R2FuYXBhdGhpIEJoYXQNCj4gPiBTdWJqZWN0OiBSZTogW1BBVENIXSBidHVzYjogZml4IHplcm8g QkQgYWRkcmVzcyBwcm9ibGVtIGR1cmluZyBzdHJlc3MNCj4gPiB0ZXN0DQo+ID4NCj4gPiBIaSBB bWl0a3VtYXIsDQo+ID4NCj4gPiA+Pj4+IEZyb206IEFtaXRrdW1hciBLYXJ3YXIgW21haWx0bzph a2Fyd2FyQG1hcnZlbGwuY29tXQ0KPiA+ID4+Pj4gU2VudDogVHVlc2RheSwgT2N0b2JlciAxOCwg MjAxNiA2OjI3IFBNDQo+ID4gPj4+PiBUbzogbGludXgtYmx1ZXRvb3RoQHZnZXIua2VybmVsLm9y Zw0KPiA+ID4+Pj4gQ2M6IG1hcmNlbEBob2x0bWFubi5vcmc7IGxpbnV4LWtlcm5lbEB2Z2VyLmtl cm5lbC5vcmc7IENhdGh5DQo+IEx1bzsNCj4gPiA+Pj4+IE5pc2hhbnQgU2FybXVrYWRhbTsgR2Fu YXBhdGhpIEJoYXQ7IEFtaXRrdW1hciBLYXJ3YXINCj4gPiA+Pj4+IFN1YmplY3Q6IFtQQVRDSF0g YnR1c2I6IGZpeCB6ZXJvIEJEIGFkZHJlc3MgcHJvYmxlbSBkdXJpbmcNCj4gc3RyZXNzDQo+ID4g Pj4+PiB0ZXN0DQo+ID4gPj4+Pg0KPiA+ID4+Pj4gRnJvbTogR2FuYXBhdGhpIEJoYXQgPGdiaGF0 QG1hcnZlbGwuY29tPg0KPiA+ID4+Pj4NCj4gPiA+Pj4+IFdlIGNhbWUgYWNyb3NzIGEgY29ybmVy IGNhc2UgaXNzdWUgZHVyaW5nIHJlYm9vdCBzdHJlc3MgdGVzdCBpbg0KPiA+ID4+IHdoaWNoDQo+ ID4gPj4+PiBoY2ljb25maWcgc2hvd3MgQkQgYWRkcmVzcyBpcyBhbGwgemVyby4gUmVhc29uIGlz IHdlIGRvbid0IGdldA0KPiA+ID4+Pj4gcmVzcG9uc2UgZm9yIEhDSSBSRVNFVCBjb21tYW5kIGR1 cmluZyBpbml0aWFsaXphdGlvbg0KPiA+ID4+Pj4NCj4gPiA+Pj4+IFRoZSBpc3N1ZSBpcyB0cmFj a2VkIHRvIGEgcmFjZSB3aGVyZSBVU0Igc3Vic3lzdGVtIGNhbGxzDQo+ID4gPj4+PiBidHVzYl9p bnRyX2NvbXBsZXRlKCkgdG8gZGVsaXZlciBhIGRhdGEoTk9PUCBmcmFtZSkgcmVjZWl2ZWQgb24N Cj4gPiA+Pj4+IGludGVycnVwdCBlbmRwb2ludC4gSENJX1JVTk5JTkcgZmxhZyBpcyBub3QgeWV0 IHNldCBieSBibHVldG9vdGgNCj4gPiA+Pj4+IHN1YnN5c3RlbS4gU28gd2UgaWdub3JlIHRoYXQg ZnJhbWUgYW5kIHJldHVybi4NCj4gPiA+Pj4+DQo+ID4gPj4+PiBBcyB3ZSBtaXNzZWQgdG8gcmVz dWJtaXQgdGhlIGJ1ZmZlciB0byBpbnRlcnJ1cHQgZW5kcG9pbnQgaW4NCj4gdGhpcw0KPiA+ID4+ Pj4gY2FzZSwgd2UgZG9uJ3QgZ2V0IHJlc3BvbnNlIGZvciBCVCByZXNldCBjb21tYW5kIGRvd25s b2FkZWQNCj4gYWZ0ZXINCj4gPiA+PiB0aGlzLg0KPiA+ID4+Pj4NCj4gPiA+Pj4+IFRoaXMgcGF0 Y2ggaGFuZGxlcyB0aGUgY29ybmVyIGNhc2UgdG8gcmVzb2x2ZSB6ZXJvIEJEIGFkZHJlc3MNCj4g PiA+PiBwcm9ibGVtLg0KPiA+ID4+Pj4NCj4gPiA+Pj4+IFNpZ25lZC1vZmYtYnk6IEdhbmFwYXRo aSBCaGF0IDxnYmhhdEBtYXJ2ZWxsLmNvbT4NCj4gPiA+Pj4+IFNpZ25lZC1vZmYtYnk6IEFtaXRr dW1hciBLYXJ3YXIgPGFrYXJ3YXJAbWFydmVsbC5jb20+DQo+ID4gPj4+PiAtLS0NCj4gPiA+Pj4+ IGRyaXZlcnMvYmx1ZXRvb3RoL2J0dXNiLmMgfCA1ICstLS0tDQo+ID4gPj4+PiAxIGZpbGUgY2hh bmdlZCwgMSBpbnNlcnRpb24oKyksIDQgZGVsZXRpb25zKC0pDQo+ID4gPj4+Pg0KPiA+ID4+Pj4g ZGlmZiAtLWdpdCBhL2RyaXZlcnMvYmx1ZXRvb3RoL2J0dXNiLmMNCj4gPiA+Pj4+IGIvZHJpdmVy cy9ibHVldG9vdGgvYnR1c2IuYyBpbmRleCA4MTFmOWI5Li5iNTU5NmFjIDEwMDY0NA0KPiA+ID4+ Pj4gLS0tIGEvZHJpdmVycy9ibHVldG9vdGgvYnR1c2IuYw0KPiA+ID4+Pj4gKysrIGIvZHJpdmVy cy9ibHVldG9vdGgvYnR1c2IuYw0KPiA+ID4+Pj4gQEAgLTYwNywxMCArNjA3LDcgQEAgc3RhdGlj IHZvaWQgYnR1c2JfaW50cl9jb21wbGV0ZShzdHJ1Y3QgdXJiDQo+ID4gPj4gKnVyYikNCj4gPiA+ Pj4+IAlCVF9EQkcoIiVzIHVyYiAlcCBzdGF0dXMgJWQgY291bnQgJWQiLCBoZGV2LT5uYW1lLCB1 cmIsDQo+IHVyYi0NCj4gPiA+Pj4+PiBzdGF0dXMsDQo+ID4gPj4+PiAJICAgICAgIHVyYi0+YWN0 dWFsX2xlbmd0aCk7DQo+ID4gPj4+Pg0KPiA+ID4+Pj4gLQlpZiAoIXRlc3RfYml0KEhDSV9SVU5O SU5HLCAmaGRldi0+ZmxhZ3MpKQ0KPiA+ID4+Pj4gLQkJcmV0dXJuOw0KPiA+ID4+Pj4gLQ0KPiA+ ID4+Pj4gLQlpZiAodXJiLT5zdGF0dXMgPT0gMCkgew0KPiA+ID4+Pj4gKwlpZiAodXJiLT5zdGF0 dXMgPT0gMCAmJiB0ZXN0X2JpdChIQ0lfUlVOTklORywgJmhkZXYtDQo+ID4gPmZsYWdzKSkgew0K PiA+ID4+Pj4gCQloZGV2LT5zdGF0LmJ5dGVfcnggKz0gdXJiLT5hY3R1YWxfbGVuZ3RoOw0KPiA+ ID4+Pj4NCj4gPiA+Pj4+IAkJaWYgKGJ0dXNiX3JlY3ZfaW50cihkYXRhLCB1cmItPnRyYW5zZmVy X2J1ZmZlciwNCj4gPiA+Pj4NCj4gPiA+Pj4gRGlkIHlvdSBnZXQgYSBjaGFuY2UgdG8gY2hlY2sg dGhpcz8NCj4gPiA+Pj4gUGxlYXNlIGxldCB1cyBrbm93IGlmIHlvdSBoYXZlIGFueSByZXZpZXcg Y29tbWVudHMuDQo+ID4gPj4NCj4gPiA+PiBjYW4geW91IGV4cGxhaW4gaG93IHRoaXMgaXMgY29y cmVjdCBhbmQgc2hvdyBtZSB0aGUgSENJIHRyYWNlcyBmb3INCj4gPiA+PiB0aGlzLg0KPiA+ID4+ DQo+ID4gPg0KPiA+ID4gSSBzdXBwb3NlIEhDSSB0cmFjZSBtZWFucyBoY2lkdW1wIGxvZ3MgaGVy ZS4gQXMgZGV2aWNlIGhhc24ndCB5ZXQNCj4gPiBpbml0aWFsaXplZCwgaGNpZHVtcCB3b24ndCBz aG93IGFueXRoaW5nLg0KPiA+ID4gV2UgaGFkIGFkZGVkIGRlYnVnIGluZm8gaW4gYnR1c2IgZHJp dmVyIHRvIHRyYWNlIHRoZSBkYXRhIHJlY2VpdmVkDQo+ID4gPiBvbg0KPiA+IGFsbCBVU0IgZW5k cG9pbnRzIGFuZCBhbHNvIGNoZWNrZWQgdXNibW9uIGxvZ3MuDQo+ID4NCj4gPiB1c2UgYnRtb24g YW5kIGl0IHdpbGwgc2hvdyBpdC4NCj4gPg0KPiA+ID4gSGVyZSBpcyB0aGUgc2VxdWVuY2Ugb2Yg ZXZlbnRzIHdlIG9ic2VydmVkIGluIGEgY29ybmVyIGNhc2Ugd2hpbGUNCj4gPiBydW5uaW5nIHN0 cmVzcyB0ZXN0Lg0KPiA+ID4gMSkgSW5zaWRlIGJ0dXNiX29wZW4oKSBjYWxsIC0tLS0tLSBUaHJl YWQgMQ0KPiA+ID4gMikgYnR1c2Jfc3VibWl0X2ludHJfdXJiKCkgc3VibWl0cyB0aGUgVVJCIGZv ciByZWNlaXZpbmcgZGF0YSBvbg0KPiA+ID4gaW50ZXJydXB0IGVuZHBvaW50IC0tLS0gVGhyZWFk IDENCj4gPiA+IDMpIGJ0dXNiX2ludHJfY29tcGxldGUoKSBnZXRzIGNhbGxlZCB0byBkZWxpdmVy IE5PUCBmcmFtZSBmcm9tIEhDSQ0KPiA+ID4gY29udHJvbGxlciAtLS0tIFRocmVhZCAyDQo+ID4g PiA0KSBIQ0lfUlVOTklORyBpc24ndCBzZXQgeWV0LiBTbyB3ZSByZXR1cm4gZnJvbQ0KPiA+ID4g YnR1c2JfaW50cl9jb21wbGV0ZSgpIHdpdGhvdXQgcmVzdWJtaXR0aW5nIHRoZSBidWZmZXIgLS0t IFRocmVhZCAyDQo+ID4gPiA1KSBFeGl0IGJ0dXNiX29wZW4oKSAtLS0tIFRocmVhZCAxDQo+ID4g PiA2KSAic2V0X2JpdChIQ0lfUlVOTklORywgJmhkZXYtPmZsYWdzKSIgZG9uZSBieSBibHVldG9v dGggY29yZSAtLS0tDQo+ID4gPiBUaHJlYWQgMQ0KPiA+ID4NCj4gPiA+IExhdGVyIEhDSV9SRVNF VCBjb21tYW5kIGdldHMgdGltZWRvdXQsIGFzIHdlIGhhdmVuJ3QgcmUtc3VibWl0dGVkDQo+ID4g YnVmZmVyIGZvciBpbnRlcnJ1cHQgZW5kcG9pbnQgaW4gc3RlcCAoNCkgYWJvdmUuDQo+ID4gPg0K PiA+ID4gUGxlYXNlIGZpbmQgYXR0YWNoZWQgbG9ncy4gdXNibW9uIGxvZyBzaG93cyBmaXJzdCBm cmFtZSByZWNlaXZlZCBvbg0KPiA+IGludGVycnVwdCBlbmRwb2ludCBpcyBOT1AoU2VhcmNoIGZv ciBNYXJ2ZWxsIGluIGxvZykuDQo+ID4gPg0KPiA+ID4gSGVyZSBpcyB3aGF0IGJsdWV0b290aCBz cGVjIHNheXMgYWJvdXQgTk9QIGZyYW1lLg0KPiA+ID4NCj4gPiA+ICJUbyBpbmRpY2F0ZSB0byB0 aGUgSG9zdCB0aGF0IHRoZSBDb250cm9sbGVyIGlzIHJlYWR5IHRvIHJlY2VpdmUNCj4gSENJDQo+ ID4gPiBjb21tYW5kIHBhY2tldHMsIHRoZSBDb250cm9sbGVyIGdlbmVyYXRlcyBhIENvbW1hbmQg U3RhdHVzIGV2ZW50DQo+ID4gPiB3aXRoIFN0YXR1cyAweDAwIGFuZCBDb21tYW5kX09wY29kZSAw eDAwMDAsIGFuZCB0aGUNCj4gPiBOdW1fSENJX0NvbW1hbmRfUGFja2V0cw0KPiA+ID4gZXZlbnQg cGFyYW1ldGVyIGlzIHNldCB0byAxIG9yIG1vcmUuIENvbW1hbmRfT3Bjb2RlLCAweDAwMDAgaXMg YQ0KPiBOT1ANCj4gPiAoTm8gT3BlcmF0aW9uKeKAnQ0KPiA+DQo+ID4gU28gSSB3b25kZXIgaWYg d2UgbmVlZCB0byByZW1vdmUgdGhlIEhDSV9SVU5OSU5HIGxvZ2ljIGZyb20gdGhlDQo+ID4gZHJp dmVycy4gSXQgaXMgb25seSBsZWZ0IGluIGEgZmV3IFVTQiBkcml2ZXJzIGFuZCBJIHJlbW92ZWQg dGhlIHJlc3QNCj4gPiBhbmQgbW92ZWQgaXQgaW50byB0aGUgY29yZS4gSSBhbSBub3QgaW4gZmF2 b3VyIG9mIHBhcGVyaW5nIG92ZXIgdGhpcw0KPiA+IGlzc3VlLiBJIG5lZWQgdG8gdW5kZXJzdGFu ZCB3aGF0IGlzIHdyb25nLiBBbmQgYWN0dWFsbHkgSENJX1JVTk5JTkcNCj4gPiBuZWVkcyB0byBi ZSB0YWtlbiBhd2F5IGZyb20gdGhlIGRyaXZlcnMuIFNvIHRoZSBxdWVzdGlvbiBpcyBpZg0KPiBi dHVzYi5jDQo+ID4gc3RpbGwgbmVlZHMgaXQgb3IgaWYgdGhhdCBpcyBqdXN0IGEgbGVmdG92ZXIu IE1lYW5pbmcgaXMgaXQNCj4gcHJvdGVjdGluZw0KPiA+IGFueXRoaW5nPw0KPiA+DQo+IA0KPiBJ IGNhbiBzZWUgSENJX1JVTk5JTkcgY2hlY2sgYmVpbmcgdXNlZCBhdCBiZWxvdyBwbGFjZXMgaW4g YnR1c2IuYw0KPiANCj4gMSkgYnR1c2JfaW50cl9jb21wbGV0ZQ0KPiAyKSBidHVzYl9idWxrX2Nv bXBsZXRlDQo+IDMpIGJ0dXNiX2lzb2NfY29tcGxldGUNCj4gNCkgYnR1c2JfdHhfY29tcGxldGUN Cj4gNSkgYnR1c2JfaXNvY190eF9jb21wbGV0ZQ0KPiA2KSBidHVzYl9iY21fc2V0X2RpYWcNCj4g NykgYnR1c2JfcmVzdW1lDQo+IA0KPiBJIHRoaW5rLCBpdCBjYW4gYmUgcmVtb3ZlZCBmcm9tICgx KSwgKDIpIGFuZCAoMyksIGFzIHdlIGFscmVhZHkgaGF2ZQ0KPiBiZWxvdyBjaGVjayBpbnNpZGUg aGNpX3JlY3ZfZnJhbWUoKQ0KPiANCj4gICAgICAgICBpZiAoIWhkZXYgfHwgKCF0ZXN0X2JpdChI Q0lfVVAsICZoZGV2LT5mbGFncykNCj4gICAgICAgICAgICAgICAgICAgICAgICYmICF0ZXN0X2Jp dChIQ0lfSU5JVCwgJmhkZXYtPmZsYWdzKSkpIHsNCj4gICAgICAgICAgICAgICAgIGtmcmVlX3Nr Yihza2IpOw0KPiAgICAgICAgICAgICAgICAgcmV0dXJuIC1FTlhJTzsNCj4gICAgICAgICB9DQo+ IA0KPiBGb3IgKDQpIGFuZCAoNSksIGl0J3MganVzdCB1c2VkIHRvIGRlY2lkZSBpZiB3ZSBzaG91 bGQgdXBkYXRlICJoZGV2LQ0KPiA+c3RhdCIgb3Igbm90Lg0KPiANCg0KUGxlYXNlIGd1aWRlIG9u IGhvdyBzaG91bGQgd2UgZml4IHRoaXMgaXNzdWUuIFdlIG9ic2VydmUgdGltZW91dCBmb3IgSENJ X1JFU0VUIGNvbW1hbmQgc29tZXRpbWVzIHdoZW4gc3lzdGVtIGlzIGJvb3RlZC4gVGhpcyBoYXBw ZW5zIGR1ZSB0byBtaXNzaW5nIHVyYl9zdWJtaXR0KCkgd2hlbiBmaXJzdCBmcmFtZShOT1ApIHJl Y2VpdmVkIG9uIElOVCBlbmRwb2ludCBpcyBpZ25vcmVkLiBCZWxvdyBjaGFuZ2Ugd291bGQgYWxz byBoZWxwLg0KDQotLS0gYS9uZXQvYmx1ZXRvb3RoL2hjaV9jb3JlLmMNCisrKyBiL25ldC9ibHVl dG9vdGgvaGNpX2NvcmUuYw0KQEAgLTEzMTgsMTIgKzEzMTgsMTMgQEAgc3RhdGljIGludCBoY2lf ZGV2X2RvX29wZW4oc3RydWN0IGhjaV9kZXYgKmhkZXYpDQogICAgICAgICAgICAgICAgZ290byBk b25lOw0KICAgICAgICB9DQoNCisgICAgICAgc2V0X2JpdChIQ0lfUlVOTklORywgJmhkZXYtPmZs YWdzKTsNCiAgICAgICAgaWYgKGhkZXYtPm9wZW4oaGRldikpIHsNCisgICAgICAgICAgICAgICBj bGVhcl9iaXQoSENJX1JVTk5JTkcsICZoZGV2LT5mbGFncyk7DQogICAgICAgICAgICAgICAgcmV0 ID0gLUVJTzsNCiAgICAgICAgICAgICAgICBnb3RvIGRvbmU7DQogICAgICAgIH0NCg0KLSAgICAg ICBzZXRfYml0KEhDSV9SVU5OSU5HLCAmaGRldi0+ZmxhZ3MpOw0KICAgICAgICBoY2lfc29ja19k ZXZfZXZlbnQoaGRldiwgSENJX0RFVl9PUEVOKTsNCg0KUmVnYXJkcywNCkFtaXRrdW1hcg0K