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: [RESEND,V3,1/3] USB: serial: f81232: clear overrun flag From: Oliver Neukum Message-Id: <1554107689.6310.17.camel@suse.com> Date: Mon, 01 Apr 2019 10:34:49 +0200 To: "Ji-Ze Hong \(Peter Hong\)" , peter_hong@fintek.com.tw, johan@kernel.org, gregkh@linuxfoundation.org Cc: "Ji-Ze Hong \(Peter Hong\)" , linux-kernel@vger.kernel.org, linux-usb@vger.kernel.org List-ID: T24gTW8sIDIwMTktMDQtMDEgYXQgMTQ6MDAgKzA4MDAsICBKaS1aZSBIb25nIChQZXRlciBIb25n KSAgd3JvdGU6CgpIaSwKSSBhbSBhZnJhaWQgdGhlcmUgaXMgYSByYWNlIGNvbmRpaW9uIGluIHRo aXMgY29kZS4KCgo+IEBAIC0zMTUsNiArMzE4LDcgQEAgc3RhdGljIHZvaWQgZjgxMjMyX3Byb2Nl c3NfcmVhZF91cmIoc3RydWN0IHVyYiAqdXJiKQo+ICAKPiAgCQkJaWYgKGxzciAmIFVBUlRfTFNS X09FKSB7Cj4gIAkJCQlwb3J0LT5pY291bnQub3ZlcnJ1bisrOwo+ICsJCQkJc2NoZWR1bGVfd29y aygmcHJpdi0+bHNyX3dvcmspOwoKVW5jb25kaXRpb25hbGx5IHNjaGVkdWxlZAoKPiAgCQkJCXR0 eV9pbnNlcnRfZmxpcF9jaGFyKCZwb3J0LT5wb3J0LCAwLAo+ICAJCQkJCQlUVFlfT1ZFUlJVTik7 Cj4gIAkJCX0KClsuLl0gCj4gK3N0YXRpYyBpbnQgZjgxMjMyX3N1c3BlbmQoc3RydWN0IHVzYl9z ZXJpYWwgKnNlcmlhbCwgcG1fbWVzc2FnZV90IG1lc3NhZ2UpCj4gK3sKPiArCXN0cnVjdCBmODEy MzJfcHJpdmF0ZSAqcG9ydF9wcml2Owo+ICsKPiArCXBvcnRfcHJpdiA9IHVzYl9nZXRfc2VyaWFs X3BvcnRfZGF0YShzZXJpYWwtPnBvcnRbMF0pOwo+ICsJZmx1c2hfd29yaygmcG9ydF9wcml2LT5s c3Jfd29yayk7Cj4gKwo+ICsJcmV0dXJuIDA7Cj4gK30KPiArCj4gIHN0YXRpYyBzdHJ1Y3QgdXNi X3NlcmlhbF9kcml2ZXIgZjgxMjMyX2RldmljZSA9IHsKPiAgCS5kcml2ZXIgPSB7Cj4gIAkJLm93 bmVyID0JVEhJU19NT0RVTEUsCj4gQEAgLTY1NSw2ICs2ODgsNyBAQCBzdGF0aWMgc3RydWN0IHVz Yl9zZXJpYWxfZHJpdmVyIGY4MTIzMl9kZXZpY2UgPSB7Cj4gIAkucmVhZF9pbnRfY2FsbGJhY2sg PQlmODEyMzJfcmVhZF9pbnRfY2FsbGJhY2ssCj4gIAkucG9ydF9wcm9iZSA9CQlmODEyMzJfcG9y dF9wcm9iZSwKPiAgCS5wb3J0X3JlbW92ZSA9CQlmODEyMzJfcG9ydF9yZW1vdmUsCj4gKwkuc3Vz cGVuZCA9CQlmODEyMzJfc3VzcGVuZCwKClBsZWFzZSBoYXZlIGEgbG9vayBhdDoKaW50IHVzYl9z ZXJpYWxfc3VzcGVuZChzdHJ1Y3QgdXNiX2ludGVyZmFjZSAqaW50ZiwgcG1fbWVzc2FnZV90IG1l c3NhZ2UpCnsKICAgICAgICBzdHJ1Y3QgdXNiX3NlcmlhbCAqc2VyaWFsID0gdXNiX2dldF9pbnRm ZGF0YShpbnRmKTsKICAgICAgICBpbnQgaSwgciA9IDA7CgoKICAgICAgICBzZXJpYWwtPnN1c3Bl bmRpbmcgPSAxOwoKCiAgICAgICAgLyoKICAgICAgICAgKiBzZXJpYWwtPnR5cGUtPnN1c3BlbmQo KSBNVVNUIHJldHVybiAwIGluIHN5c3RlbSBzbGVlcCBjb250ZXh0LAogICAgICAgICAqIG90aGVy d2lzZSwgdGhlIHJlc3VtZSBjYWxsYmFjayBoYXMgdG8gcmVjb3ZlciBkZXZpY2UgZnJvbQogICAg ICAgICAqIHByZXZpb3VzIHN1c3BlbmQgZmFpbHVyZS4KICAgICAgICAgKi8KICAgICAgICBpZiAo c2VyaWFsLT50eXBlLT5zdXNwZW5kKSB7CiAgICAgICAgICAgICAgICByID0gc2VyaWFsLT50eXBl LT5zdXNwZW5kKHNlcmlhbCwgbWVzc2FnZSk7CiAgICAgICAgICAgICAgICBpZiAociA8IDApIHsK ICAgICAgICAgICAgICAgICAgICAgICAgc2VyaWFsLT5zdXNwZW5kaW5nID0gMDsKICAgICAgICAg ICAgICAgICAgICAgICAgZ290byBlcnJfb3V0OwogICAgICAgICAgICAgICAgfQogICAgICAgIH0K CgogICAgICAgIGZvciAoaSA9IDA7IGkgPCBzZXJpYWwtPm51bV9wb3J0czsgKytpKQogICAgICAg ICAgICAgICAgdXNiX3NlcmlhbF9wb3J0X3BvaXNvbl91cmJzKHNlcmlhbC0+cG9ydFtpXSk7CmVy cl9vdXQ6CiAgICAgICAgcmV0dXJuIHI7Cn0KRVhQT1JUX1NZTUJPTCh1c2Jfc2VyaWFsX3N1c3Bl bmQpOwoKQXMgeW91IGNhbiBzZWUsIHRoZSBzdXNwZW5kIG1ldGhvZCBpcyBjYWxsZWQgZmlyc3Qg YW5kIHRoZW4gdGhlIFVSQnMKYXJlIHBvaXNvbmVkLiBUaGF0IG1lYW5zIHRoYXQgYWZ0ZXIgeW91 IGhhdmUgZmx1c2hlZCB0aGUgd29yaywgaXQgbWF5CmJlIHN1Ym1pdHRlZCBhZ2Fpbi4gVGhlIGZp eCB3b3VsZCBiZSB0byB0ZXN0IHRoZSAnc3VzcGVuZGluZycgZmxhZwpiZWZvcmUgeW91IHNjaGVk dWxlIHdvcmsgKGFuZCByZWNoZWNrIHRoZSBuZWVkIHRvIHNjaGVkdWxlIGl0CmR1cmluZyByZXN1 bWUpCgoJUmVnYXJkcwoJCU9saXZlcgo=