From mboxrd@z Thu Jan 1 00:00:00 1970 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: base64 Subject: cdc-acm: fix abnormal DATA RX issue for Mediatek Preloader. From: Oliver Neukum Message-Id: <1544693037.11160.3.camel@suse.com> Date: Thu, 13 Dec 2018 10:23:57 +0100 To: macpaul.lin@mediatek.com, Johan Hovold , Greg Kroah-Hartman , linux-usb@vger.kernel.org Cc: wsd_upstream@mediatek.com List-ID: T24gRG8sIDIwMTgtMTItMTMgYXQgMTE6MjcgKzA4MDAsIG1hY3BhdWwubGluQG1lZGlhdGVrLmNv bSB3cm90ZToKPiBGcm9tOiBNYWNwYXVsIExpbiA8bWFjcGF1bC5saW5AbWVkaWF0ZWsuY29tPgo+ IAo+IE1lZGlhdGVrIFByZWxvYWRlciBpcyBhIHByb3ByaWV0YXJ5IGVtYmVkZGVkIGJvb3QgbG9h ZGVyIGZvciBsb2FkaW5nCj4gTGl0dGxlIEtlcm5lbCBhbmQgTGludXggaW50byBkZXZpY2UgRFJB TS4KPiAKPiBUaGlzIGJvb3QgbG9hZGVyIGFsc28gaGFuZGxlIGZpcm13YXJlIHVwZGF0aW5nLiBN ZWRpYXRlayBQcmVsb2FkZXIgd2lsbCBiZQo+IGVudW1lcmF0ZWQgYXMgYSB2aXJ0dWFsIENPTSBw b3J0IHdoZW4gdGhlIGRldmljZSBpcyBjb25uZWN0ZWQgdG8gV2luZG93cwo+IG9yIExpbnV4IE9T IHZpYSBDREMtQUNNIGNsYXNzIGRyaXZlci4gV2hlbiB0aGUgZW51bWVyYXRpb24gaGFzIGJlZW4g ZG9uZSwKPiBNZWRpYXRlayBQcmVsb2FkZXIgd2lsbCBzZW5kIG91dCBoYW5kc2hha2UgY29tbWFu ZCAiUkVBRFkiIHRvIFBDIGFjdGl2ZWx5Cj4gaW5zdGVhZCBvZiB3YWl0aW5nIGNvbW1hbmQgZnJv bSB0aGUgZG93bmxvYWQgdG9vbC4KPiBTaW5jZSBMaW51eCA0LjEyLCB0aGUgY29tbWl0ICJ0dHk6 IHJlc2V0IHRlcm1pb3Mgc3RhdGUgb24gZGV2aWNlCj4gcmVnaXN0cmF0aW9uIiAoOTM4NTdlZGQ5 ODI5ZTE0NGFjYjZjN2U3MmQ1OTNmNmUwMWFlYWQ2NikgY2F1c2VzIE1lZGlhdGVrCj4gUHJlbG9h ZGVyIHJlY2VpdmluZyBzb21lIGFibm9yYW1sIGNvbW1hbmQgbGlrZSAiUkVBRFlYWCIgYXMgaXQg c2VuZGVkLgo+IFdoaWNoIHdpbGwgYmUgcmVjb2duaXplZCBhcyBhbiBpbmNvcnJlY3QgcmVzcG9u c2UuIFRoaXMgYmVoYXZpb3IgY2hhbmdlCj4gYWxzbyBjYXVzZXMgdGhlIGhhbmRzaGFrZSBmYWls LgoKVGhhbmsgeW91IGZvciBtYWtpbmcgdGhpcyBwYXRjaC4gSG93ZXZlciwgSSBhbSBhZnJhaWQg SSBoYXZlIHRvIGFzawpmb3IgdHdvIGxpdHRsZSBhbHRlcmF0aW9ucyBiZWZvcmUgaXQgY2FuIGdv IHVwc3RyZWFtCgoxLiBJZiBJIHVuZGVyc3RhbmQgeW91IGNvcnJlY3RseSBpdCBvbmx5IHdvcmtl ZCBieSBhY2NpZGVudCB1c3VhbGx5Cm9uIHRoZSBvbGQga2VybmVscy4gUGxlYXNlIENDIHRoZSBw YXRjaCB0byBzdGFibGUuCjIuIERvIG5vdCBjaGVjayBmb3IgZXhhY3QgbWF0Y2ggb24geW91ciBx dWlyay4gVGhhdCB3aWxsIHByZXZlbnQKY29tYmluaW5nIHF1aXJrcy4gUGxlYXNlIHRlc3QgZm9y IHRoZSBzcGVjaWZpYyBiaXQgYmVpbmcgc2V0LgoKPiAKPiAgCj4gKwkvKiBoYW5kbGUgYWN0aXZl IGhhbmRzaGFrZSB0cmlnZ2VyZWQgYnkgZGV2aWNlICovCj4gKwlpZiAocXVpcmtzID09IERJU0FC TEVfRUNITykKClRoaXMgdGVzdCBpcyB0b28gc3BlY2lmaWMuCgo+ICsJCWFjbV90dHlfZHJpdmVy LT5pbml0X3Rlcm1pb3MuY19sZmxhZyAmPSB+KEVDSE8pOwo+ICsKCglSZWdhcmRzCgkJT2xpdmVy Cg==