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: [4/4] usb: dwc3: gadget: check if dep->frame_number is still valid From: Felipe Balbi Message-Id: <8736s4ja68.fsf@linux.intel.com> Date: Wed, 14 Nov 2018 11:11:27 +0200 To: Thinh Nguyen Thinh Nguyen , Linux USB List-ID: SGksCgpUaGluaCBOZ3V5ZW4gPHRoaW5oLm5ndXllbkBzeW5vcHN5cy5jb20+IHdyaXRlczoKPj4+ IElmIGl0IGZhaWxzIGZvciBvdmVyIDUgdGltZXMgaW4gYSByb3csIHRoZW4gd2Ugc2hvdWxkIHBy b2JhYmx5IHdhaXQgZm9yCj4+PiB0aGUgbmV4dCBYZmVyTm90UmVhZHkgdG8gZ2V0IHRoZSBmcmFt ZV9udW1iZXIgYWdhaW4uIEFsc28gNSBpcyBhbgo+Pj4gYXJiaXRyYXJ5IG51bWJlciBJIGNhbWUg dXAgd2l0aG91dCBhbnkgdGVzdGluZywgd2UgY2FuIHByb2JhYmx5IGRlY2lkZQo+Pj4gb24gYSBi ZXR0ZXIgbnVtYmVyLiBXaGF0IGRvIHlvdSB0aGluaz8KPj4gSSBoYXZlIHRoaXMgbm93Ogo+Pgo+ PiBkaWZmIC0tZ2l0IGEvZHJpdmVycy91c2IvZHdjMy9jb3JlLmggYi9kcml2ZXJzL3VzYi9kd2Mz L2NvcmUuaAo+PiBpbmRleCAxMzEwMjg1MDE3NTIuLjMzOTBmYTQ2ZWEzMCAxMDA2NDQKPj4gLS0t IGEvZHJpdmVycy91c2IvZHdjMy9jb3JlLmgKPj4gKysrIGIvZHJpdmVycy91c2IvZHdjMy9jb3Jl LmgKPj4gQEAgLTM3LDYgKzM3LDcgQEAKPj4gICNkZWZpbmUgRFdDM19FUDBfU0VUVVBfU0laRSAg ICA1MTIKPj4gICNkZWZpbmUgRFdDM19FTkRQT0lOVFNfTlVNICAgICAzMgo+PiAgI2RlZmluZSBE V0MzX1hIQ0lfUkVTT1VSQ0VTX05VTSAgICAgICAgMgo+PiArI2RlZmluZSBEV0MzX0lTT0NfTUFY X1JFVFJJRVMgIDUKPj4gIAo+PiAgI2RlZmluZSBEV0MzX1NDUkFUQ0hCVUZfU0laRSAgIDQwOTYg ICAgLyogZWFjaCBidWZmZXIgaXMgYXNzdW1lZCB0byBiZSA0S2lCICovCj4+ICAjZGVmaW5lIERX QzNfRVZFTlRfQlVGRkVSU19TSVpFICAgICAgICA0MDk2Cj4+IGRpZmYgLS1naXQgYS9kcml2ZXJz L3VzYi9kd2MzL2dhZGdldC5jIGIvZHJpdmVycy91c2IvZHdjMy9nYWRnZXQuYwo+PiBpbmRleCBk OGM3YWQwYzIyZTguLjE1OTA1MTY3MzVjYiAxMDA2NDQKPj4gLS0tIGEvZHJpdmVycy91c2IvZHdj My9nYWRnZXQuYwo+PiArKysgYi9kcml2ZXJzL3VzYi9kd2MzL2dhZGdldC5jCj4+IEBAIC0yNyw3 ICsyNyw3IEBACj4+ICAjaW5jbHVkZSAiZ2FkZ2V0LmgiCj4+ICAjaW5jbHVkZSAiaW8uaCIKPj4g IAo+PiAtI2RlZmluZSBEV0MzX0FMSUdOX0ZSQU1FKGQpICAgICgoKGQpLT5mcmFtZV9udW1iZXIg KyAoZCktPmludGVydmFsKSBcCj4+ICsjZGVmaW5lIERXQzNfQUxJR05fRlJBTUUoZCwgbikgKCgo ZCktPmZyYW1lX251bWJlciArICgoZCktPmludGVydmFsICogKG4pKSkgXAo+PiAgICAgICAgICAg ICAgICAgICAgICAgICAgICAgICAgICAgICAgICAgJiB+KChkKS0+aW50ZXJ2YWwgLSAxKSkKPj4g IAo+PiAgLyoqCj4+IEBAIC0xMjY4LDEzICsxMjY4LDI0IEBAIHN0YXRpYyBpbnQgX19kd2MzX2dh ZGdldF9nZXRfZnJhbWUoc3RydWN0IGR3YzMgKmR3YykKPj4gIAo+PiAgc3RhdGljIGludCBfX2R3 YzNfZ2FkZ2V0X3N0YXJ0X2lzb2Moc3RydWN0IGR3YzNfZXAgKmRlcCkKPj4gIHsKPj4gKyAgICAg ICBpbnQgcmV0cmllczsKPj4gKyAgICAgICBpbnQgcmV0Owo+PiArICAgICAgIGludCBpOwo+PiAr Cj4+ICAgICAgICAgaWYgKGxpc3RfZW1wdHkoJmRlcC0+cGVuZGluZ19saXN0KSkgewo+PiAgICAg ICAgICAgICAgICAgZGVwLT5mbGFncyB8PSBEV0MzX0VQX1BFTkRJTkdfUkVRVUVTVDsKPj4gICAg ICAgICAgICAgICAgIHJldHVybiAtRUFHQUlOOwo+PiAgICAgICAgIH0KPj4gIAo+PiAtICAgICAg IGRlcC0+ZnJhbWVfbnVtYmVyID0gRFdDM19BTElHTl9GUkFNRShkZXApOwo+PiAtICAgICAgIHJl dHVybiBfX2R3YzNfZ2FkZ2V0X2tpY2tfdHJhbnNmZXIoZGVwKTsKPj4gKyAgICAgICBmb3IgKGkg PSAwOyBpIDwgRFdDM19JU09DX01BWF9SRVRSSUVTOyBpKyspIHsKPj4gKyAgICAgICAgICAgICAg IGRlcC0+ZnJhbWVfbnVtYmVyID0gRFdDM19BTElHTl9GUkFNRShkZXAsIGkpOwo+ICAKPiBTaG91 bGRuJ3QgdGhpcyBiZSBsaWtlIHRoaXM/Cj4gZGVwLT5mcmFtZV9udW1iZXIgPSBEV0MzX0FMSUdO X0ZSQU1FKGRlcCwgaSArIDEpOwoKZ29vZCBjYXRjaCwgSSdsbCBmaXguCgo+PiArCj4+ICsgICAg ICAgICAgICAgICByZXQgPSBfX2R3YzNfZ2FkZ2V0X2tpY2tfdHJhbnNmZXIoZGVwKTsKPj4gKyAg ICAgICAgICAgICAgIGlmIChyZXQgIT0gLUVBR0FJTikKPj4gKyAgICAgICAgICAgICAgICAgICAg ICAgYnJlYWs7Cj4+ICsgICAgICAgfQo+PiArCj4+ICsgICAgICAgcmV0dXJuIHJldDsKPj4gIH0K Pj4gIAo+PiAgc3RhdGljIGludCBfX2R3YzNfZ2FkZ2V0X2VwX3F1ZXVlKHN0cnVjdCBkd2MzX2Vw ICpkZXAsIHN0cnVjdCBkd2MzX3JlcXVlc3QgKnJlcSkKPj4KPj4gVGhpcyBtZWFucyB3ZSB3aWxs IGluY3JlbWVudCBpbiBmdWxsIGludGVydmFscywgdXAgdG8gNSBpbnRlcnZhbHMgaW4gdGhlCj4+ IGZ1dHVyZS4gSWYgaXQgc3RpbGwgZmFpbHMsIHRoZW4gdGhlcmUncyBub3QgbXVjaCB3ZSBjYW4g ZG8uCj4+Cj4gSSBhZ3JlZS4gQWxzbywgZGVwZW5kaW5nIG9uIHRoZSBhcHBsaWNhdGlvbiByZXF1 aXJlbWVudCwgd2UgbWF5IHdhbnQgdG8KPiBnaXZlYmFjay9jbGVhbnVwIHJlcXVlc3QocykgZXZl cnkgdGltZSB3ZSBmYWlsIHNvIHRoYXQgdGhlIGRhdGEgd29uJ3QgYmUKPiBwdXNoZWQgYmFjay9k ZWxheWVkIGZvciB0b28gbG9uZy4KPiBXZSBjb3VsZCBleHBlcmltZW50IGFuZCBkZWNpZGUgb24g dGhlIG1heGltdW0gZGVsYXkgdGltZSAoYmFzZSBvbiB0aGUKPiBzZXJ2aWNlIGludGVydmFsIGxl bmd0aCBhbmQgbnVtYmVyIG9mIHJldHJpZXMpIHRvIGJlIGNvbnNpZGVyZWQKPiBhY2NlcHRhYmxl IHRvIHN0YXJ0IGdpdmViYWNrIHN0YWxlIHJlcXVlc3RzLgoKVGhhdCdzIHNvbWV0aGluZyB3ZSBj YW4gY29uc2lkZXIgaW4gdGhlIGZ1dHVyZS4gSSdkIHNheSB0aGF0IHRoZSBnYWRnZXQKZHJpdmVy IHNob3VsZCwgdGhlbiwgdGVsbCB1cyBob3cgbXVjaCBzbGFjayB0byBnaXZlLgo=