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: [2/4] usb: dwc3: gadget: check if dep->frame_number is still valid From: Laurent Pinchart Message-Id: <1883692.NamISpHpim@avalon> Date: Mon, 20 Aug 2018 14:28:57 +0300 To: Felipe Balbi Cc: linux-usb@vger.kernel.org, Kieran Bingham List-ID: SGkgRmVsaXBlLAoKKENDJ2luZyBLaWVyYW4pCgpUaGFuayB5b3UgZm9yIHRoZSBwYXRjaC4KCk9u IE1vbmRheSwgMjAgQXVndXN0IDIwMTggMTM6Mjk6NTkgRUVTVCBGZWxpcGUgQmFsYmkgd3JvdGU6 Cj4gR2FkZ2V0IGRyaXZlciBtYXkgdGFrZSBhbiB1bmJvdW5kZWQgYW1vdW50IG9mIHRpbWUgdG8g cXVldWUgcmVxdWVzdHMKPiBhZnRlciBYZmVyTm90UmVhZHkuIFRoaXMgaXMgaW1wb3J0YW50IGZv ciBpc29jaHJvbm91cyBlbmRwb2ludHMgd2hpY2gKPiBuZWVkIHRvIGJlIHN0YXJ0ZWQgZm9yIGEg c3BlY2lmaWMgKG1pY3JvLSlmcmFtZS4KPiAKPiBCZWZvcmUga2lja2luZyB0aGUgdHJhbnNmZXIs IGxldCdzIGNoZWNrIGlmIGN1cnJlbnQgZnJhbWUgbnVtYmVyIGlzCj4gc3RpbGwgbGVzcyB0aGFu IG91ciBhbGlnbmVkIGZyYW1lIG51bWJlciB0aGF0IHdlIGdvdCBmcm9tIHRoZQo+IHByZXZpb3Vz IFhmZXJOb3RSZWFkeS4gSWYgaXQgaXNuJ3QsIHRoZW4gd2UnbGwgaW5jcmVtZW50Cj4gZGVwLT5m cmFtZV9udW1iZXIgdG8gbWFrZSBzdXJlIGl0J3MgYWhlYWQgb2YgY3VycmVudCBmcmFtZSBudW1i ZXIuCj4gCj4gU2lnbmVkLW9mZi1ieTogRmVsaXBlIEJhbGJpIDxmZWxpcGUuYmFsYmlAbGludXgu aW50ZWwuY29tPgo+IC0tLQo+ICBkcml2ZXJzL3VzYi9kd2MzL2NvcmUuaCAgIHwgIDIgKysKPiAg ZHJpdmVycy91c2IvZHdjMy9nYWRnZXQuYyB8IDExICsrKysrKysrKysrCj4gIDIgZmlsZXMgY2hh bmdlZCwgMTMgaW5zZXJ0aW9ucygrKQo+IAo+IGRpZmYgLS1naXQgYS9kcml2ZXJzL3VzYi9kd2Mz L2NvcmUuaCBiL2RyaXZlcnMvdXNiL2R3YzMvY29yZS5oCj4gaW5kZXggMjg1Y2UwZWYzYjkxLi4z YWNmODc4OGE2ODAgMTAwNjQ0Cj4gLS0tIGEvZHJpdmVycy91c2IvZHdjMy9jb3JlLmgKPiArKysg Yi9kcml2ZXJzL3VzYi9kd2MzL2NvcmUuaAo+IEBAIC02ODUsNiArNjg1LDggQEAgc3RydWN0IGR3 YzNfZXAgewo+ICAJdTgJCQl0eXBlOwo+ICAJdTgJCQlyZXNvdXJjZV9pbmRleDsKPiAgCXUzMgkJ CWZyYW1lX251bWJlcjsKPiArI2RlZmluZSBEV0MzX0VQX0ZSQU1FX05VTUJFUl9NQVNLIDB4M2Zm Zgo+ICsKPiAgCXUzMgkJCWludGVydmFsOwo+IAo+ICAJY2hhcgkJCW5hbWVbMjBdOwo+IGRpZmYg LS1naXQgYS9kcml2ZXJzL3VzYi9kd2MzL2dhZGdldC5jIGIvZHJpdmVycy91c2IvZHdjMy9nYWRn ZXQuYwo+IGluZGV4IGY2MWE0MjUwYzg4My4uMGJhYzliMDJmMjhiIDEwMDY0NAo+IC0tLSBhL2Ry aXZlcnMvdXNiL2R3YzMvZ2FkZ2V0LmMKPiArKysgYi9kcml2ZXJzL3VzYi9kd2MzL2dhZGdldC5j Cj4gQEAgLTEyNTcsNiArMTI1Nyw5IEBAIHN0YXRpYyBpbnQgX19kd2MzX2dhZGdldF9nZXRfZnJh bWUoc3RydWN0IGR3YzMgKmR3YykKPiAKPiAgc3RhdGljIGludCBfX2R3YzNfZ2FkZ2V0X3N0YXJ0 X2lzb2Moc3RydWN0IGR3YzNfZXAgKmRlcCkKPiAgewo+ICsJdTE2IGN1cnJlbnRfZnJhbWVfbnVt YmVyOwo+ICsJdTE2IGZyYW1lX251bWJlcjsKPiArCj4gIAlpZiAobGlzdF9lbXB0eSgmZGVwLT5w ZW5kaW5nX2xpc3QpKSB7Cj4gIAkJZGV2X2luZm8oZGVwLT5kd2MtPmRldiwgIiVzOiByYW4gb3V0 IG9mIHJlcXVlc3RzXG4iLAo+ICAJCQkJZGVwLT5uYW1lKTsKPiBAQCAtMTI2NSw2ICsxMjY4LDE0 IEBAIHN0YXRpYyBpbnQgX19kd2MzX2dhZGdldF9zdGFydF9pc29jKHN0cnVjdCBkd2MzX2VwCj4g KmRlcCkgfQo+IAo+ICAJZGVwLT5mcmFtZV9udW1iZXIgPSBEV0MzX0FMSUdOX0ZSQU1FKGRlcCk7 Cj4gKwljdXJyZW50X2ZyYW1lX251bWJlciA9IF9fZHdjM19nYWRnZXRfZ2V0X2ZyYW1lKGRlcC0+ ZHdjKTsKPiArCWZyYW1lX251bWJlciA9IGRlcC0+ZnJhbWVfbnVtYmVyICYgRFdDM19FUF9GUkFN RV9OVU1CRVJfTUFTSzsKPiArCj4gKwlpZiAoZnJhbWVfbnVtYmVyIDw9IGN1cnJlbnRfZnJhbWVf bnVtYmVyKSB7Cj4gKwkJZGVwLT5mcmFtZV9udW1iZXIgKz0gY3VycmVudF9mcmFtZV9udW1iZXIg LSBmcmFtZV9udW1iZXI7Cj4gKwkJZGVwLT5mcmFtZV9udW1iZXIgPSBEV0MzX0FMSUdOX0ZSQU1F KGRlcCk7Cj4gKwl9Cj4gKwoKVGhpcyBncmVhdGx5IGltcHJvdmVzIHRoZSBzaXR1YXRpb24gd2l0 aCB0aGUgVVZDIGZ1bmN0aW9uIGRyaXZlci4gSG93ZXZlciwgCndlJ3JlIHN0aWxsIHJlY2Vpdmlu ZyBlcnJvcnMgZnJvbSB0aW1lIHRvIHRpbWUgcmVsYXRlZCB0byBtaXNzZWQgdHJhbnNmZXIgCmlu dGVydmFscywgYW5kIHRob3NlIGVycm9ycyB0ZW5kIHRvIG9jY3VyIGluIGJ1cnN0cy4gS2llcmFu IHNob3VsZCBiZSBhYmxlIHRvIApwcm92aWRlIHlvdSB3aXRoIG1vcmUgaW5mb3JtYXRpb24uIEJl Zm9yZSBhY2tpbmcgdGhpcyBwYXRjaCBJIHdvdWxkIHRodXMgbGlrZSAKdG8gbWFrZSBzdXJlIHRo YXQgd2UncmUgbm90IG1pc3NpbmcgcGFydCBvZiB0aGUgcHJvYmxlbS4KCj4gIAlyZXR1cm4gX19k d2MzX2dhZGdldF9raWNrX3RyYW5zZmVyKGRlcCk7Cj4gIH0K