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: macpaul.lin@mediatek.com Message-Id: <1544671676-23912-1-git-send-email-macpaul.lin@mediatek.com> Date: Thu, 13 Dec 2018 11:27:56 +0800 To: linux-usb@vger.kernel.org, Oliver Neukum , Greg Kroah-Hartman , Johan Hovold , Macpaul Lin Cc: wsd_upstream@mediatek.com List-ID: RnJvbTogTWFjcGF1bCBMaW4gPG1hY3BhdWwubGluQG1lZGlhdGVrLmNvbT4KCk1lZGlhdGVrIFBy ZWxvYWRlciBpcyBhIHByb3ByaWV0YXJ5IGVtYmVkZGVkIGJvb3QgbG9hZGVyIGZvciBsb2FkaW5n CkxpdHRsZSBLZXJuZWwgYW5kIExpbnV4IGludG8gZGV2aWNlIERSQU0uCgpUaGlzIGJvb3QgbG9h ZGVyIGFsc28gaGFuZGxlIGZpcm13YXJlIHVwZGF0aW5nLiBNZWRpYXRlayBQcmVsb2FkZXIgd2ls bCBiZQplbnVtZXJhdGVkIGFzIGEgdmlydHVhbCBDT00gcG9ydCB3aGVuIHRoZSBkZXZpY2UgaXMg Y29ubmVjdGVkIHRvIFdpbmRvd3MKb3IgTGludXggT1MgdmlhIENEQy1BQ00gY2xhc3MgZHJpdmVy LiBXaGVuIHRoZSBlbnVtZXJhdGlvbiBoYXMgYmVlbiBkb25lLApNZWRpYXRlayBQcmVsb2FkZXIg d2lsbCBzZW5kIG91dCBoYW5kc2hha2UgY29tbWFuZCAiUkVBRFkiIHRvIFBDIGFjdGl2ZWx5Cmlu c3RlYWQgb2Ygd2FpdGluZyBjb21tYW5kIGZyb20gdGhlIGRvd25sb2FkIHRvb2wuClNpbmNlIExp bnV4IDQuMTIsIHRoZSBjb21taXQgInR0eTogcmVzZXQgdGVybWlvcyBzdGF0ZSBvbiBkZXZpY2UK cmVnaXN0cmF0aW9uIiAoOTM4NTdlZGQ5ODI5ZTE0NGFjYjZjN2U3MmQ1OTNmNmUwMWFlYWQ2Nikg Y2F1c2VzIE1lZGlhdGVrClByZWxvYWRlciByZWNlaXZpbmcgc29tZSBhYm5vcmFtbCBjb21tYW5k IGxpa2UgIlJFQURZWFgiIGFzIGl0IHNlbmRlZC4KV2hpY2ggd2lsbCBiZSByZWNvZ25pemVkIGFz IGFuIGluY29ycmVjdCByZXNwb25zZS4gVGhpcyBiZWhhdmlvciBjaGFuZ2UKYWxzbyBjYXVzZXMg dGhlIGhhbmRzaGFrZSBmYWlsLgoKQnkgZGlzYWJsaW5nIHRoZSBFQ0hPIHRlcm1pb3MgZmxhZyBj b3VsZCBhdm9pZCB0aGlzIHByb2JsZW0uIEhvd2V2ZXIsIGl0CmNhbm5vdCBiZSBkb25lIGJ5IHVz ZXIgc3BhY2UgY29uZmlndXJhdGlvbiB3aGVuIGRvd25sb2FkIHRvb2wgb3BlbgovZGV2L3R0eUFD TTAuIFRoaXMgaXMgYmVjYXVzZSB0aGUgZGV2aWNlIHJ1bm5pbmcgTWVkaWF0ZWsgUHJlbG9hZGVy IHdpbGwKc2VuZCBoYW5kc2hha2UgY29tbWFuZCAiUkVBRFkiIGltbWVkaWF0ZWx5IG9uY2UgdGhl IENEQy1BQ00gZHJpdmVyIGlzCnJlYWR5LgoKVGhpcyBwYXRjaCB3YW50cyB0byBmaXggYWJvdmUg cHJvYmxlbSBieSBpbnRyb2R1Y2luZyAiRElTQUJMRV9FQ0hPIgpwcm9wZXJ0eSBpbiBkcml2ZXJf aW5mby4gV2hlbiBNZWRpYXRlayBQcmVsb2FkZXIgaXMgY29ubmVjdGVkLCB0aGUKQ0RDLUFDTSBk cml2ZXIgY291bGQgZGlzYWJsZSBFQ0hPIGZsYWcgaW4gdGVybWlvcyB0byBhdm9pZCB0aGUgcHJv YmxlbS4KClNpZ25lZC1vZmYtYnk6IE1hY3BhdWwgTGluIDxtYWNwYXVsLmxpbkBtZWRpYXRlay5j b20+Ci0tLQogZHJpdmVycy91c2IvY2xhc3MvY2RjLWFjbS5jIHwgOSArKysrKysrKy0KIGRyaXZl cnMvdXNiL2NsYXNzL2NkYy1hY20uaCB8IDEgKwogMiBmaWxlcyBjaGFuZ2VkLCA5IGluc2VydGlv bnMoKyksIDEgZGVsZXRpb24oLSkKCmRpZmYgLS1naXQgYS9kcml2ZXJzL3VzYi9jbGFzcy9jZGMt YWNtLmMgYi9kcml2ZXJzL3VzYi9jbGFzcy9jZGMtYWNtLmMKaW5kZXggMWI2OGZlZC4uMmY3NDRi YiAxMDA2NDQKLS0tIGEvZHJpdmVycy91c2IvY2xhc3MvY2RjLWFjbS5jCisrKyBiL2RyaXZlcnMv dXNiL2NsYXNzL2NkYy1hY20uYwpAQCAtMTE1Niw2ICsxMTU2LDEwIEBAIHN0YXRpYyBpbnQgYWNt X3Byb2JlKHN0cnVjdCB1c2JfaW50ZXJmYWNlICppbnRmLAogCQlnb3RvIHNraXBfbm9ybWFsX3By b2JlOwogCX0KIAorCS8qIGhhbmRsZSBhY3RpdmUgaGFuZHNoYWtlIHRyaWdnZXJlZCBieSBkZXZp Y2UgKi8KKwlpZiAocXVpcmtzID09IERJU0FCTEVfRUNITykKKwkJYWNtX3R0eV9kcml2ZXItPmlu aXRfdGVybWlvcy5jX2xmbGFnICY9IH4oRUNITyk7CisKIAkvKiBub3JtYWwgcHJvYmluZyovCiAJ aWYgKCFidWZmZXIpIHsKIAkJZGV2X2VycigmaW50Zi0+ZGV2LCAiV2VpcmQgZGVzY3JpcHRvciBy ZWZlcmVuY2VzXG4iKTsKQEAgLTE2NTUsNyArMTY1OSwxMCBAQCBzdGF0aWMgaW50IGFjbV9wcmVf cmVzZXQoc3RydWN0IHVzYl9pbnRlcmZhY2UgKmludGYpCiAJLmRyaXZlcl9pbmZvID0gTk9fVU5J T05fTk9STUFMLCAvKiBoYXMgbm8gdW5pb24gZGVzY3JpcHRvciAqLwogCX0sCiAJeyBVU0JfREVW SUNFKDB4MGU4ZCwgMHgwMDAzKSwgLyogRklSRUZMWSwgTWVkaWFUZWsgSW5jOyBhbmRyZXkuYXJh cG92QGdtYWlsLmNvbSAqLwotCS5kcml2ZXJfaW5mbyA9IE5PX1VOSU9OX05PUk1BTCwgLyogaGFz IG5vIHVuaW9uIGRlc2NyaXB0b3IgKi8KKwkuZHJpdmVyX2luZm8gPSBESVNBQkxFX0VDSE8sIC8q IERJU0FCTEUgRUNITyBpbiB0ZXJtaW9zIGZsYWcgKi8KKwl9LAorCXsgVVNCX0RFVklDRSgweDBl OGQsIDB4MjAwMCksIC8qIEZJUkVGTFksIE1lZGlhVGVrIEluYzsgUHJlbG9hZGVyICovCisJLmRy aXZlcl9pbmZvID0gRElTQUJMRV9FQ0hPLCAvKiBESVNBQkxFIEVDSE8gaW4gdGVybWlvcyBmbGFn ICovCiAJfSwKIAl7IFVTQl9ERVZJQ0UoMHgwZThkLCAweDMzMjkpLCAvKiBNZWRpYVRlayBJbmMg R1BTICovCiAJLmRyaXZlcl9pbmZvID0gTk9fVU5JT05fTk9STUFMLCAvKiBoYXMgbm8gdW5pb24g ZGVzY3JpcHRvciAqLwpkaWZmIC0tZ2l0IGEvZHJpdmVycy91c2IvY2xhc3MvY2RjLWFjbS5oIGIv ZHJpdmVycy91c2IvY2xhc3MvY2RjLWFjbS5oCmluZGV4IGNhMDZiMjAuLjUxNWFhZDAgMTAwNjQ0 Ci0tLSBhL2RyaXZlcnMvdXNiL2NsYXNzL2NkYy1hY20uaAorKysgYi9kcml2ZXJzL3VzYi9jbGFz cy9jZGMtYWNtLmgKQEAgLTE0MCwzICsxNDAsNCBAQCBzdHJ1Y3QgYWNtIHsKICNkZWZpbmUgUVVJ UktfQ09OVFJPTF9MSU5FX1NUQVRFCUJJVCg2KQogI2RlZmluZSBDTEVBUl9IQUxUX0NPTkRJVElP TlMJCUJJVCg3KQogI2RlZmluZSBTRU5EX1pFUk9fUEFDS0VUCQlCSVQoOCkKKyNkZWZpbmUgRElT QUJMRV9FQ0hPCQkJQklUKDkpCg==