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: [V6,08/10] usb: dwc3: Correct the logic for checking TRB full in __dwc3_prepare_one_trb() From: Anurag Kumar Vulisha Message-Id: <1539436498-24892-10-git-send-email-anurag.kumar.vulisha@xilinx.com> Date: Sat, 13 Oct 2018 18:44:56 +0530 To: Felipe Balbi , Greg Kroah-Hartman , Alan Stern , Johan Hovold , Jaejoong Kim , Benjamin Herrenschmidt , Roger Quadros Cc: linux-usb@vger.kernel.org, linux-kernel@vger.kernel.org, v.anuragkumar@gmail.com, Thinh Nguyen , Tejas Joglekar , Ajay Yugalkishore Pandey , Anurag Kumar Vulisha List-ID: QXZhaWxhYmlsaXR5IG9mIFRSQidzIGlzIGNhbGN1bGF0ZWQgdXNpbmcgZHdjM19jYWxjX3RyYnNf bGVmdCgpLCB3aGljaApkZXRlcm1pbmVzIHRvdGFsIGF2YWlsYWJsZSBUUkIncyBiYXNlZCBvbiB0 aGUgSFdPIGJpdCBzZXQgaW4gYSBUUkIuCgpJbiB0aGUgcHJlc2VudCBjb2RlLCBfX2R3YzNfcHJl cGFyZV9vbmVfdHJiKCkgaXMgY2FsbGVkIHdpdGggYSBUUkIgd2hpY2gKbmVlZHMgdG8gYmUgcHJl cGFyZWQgZm9yIHRyYW5zZmVyLiBUaGlzIF9fZHdjM19wcmVwYXJlX29uZV90cmIoKSBjYWxscwpk d2MzX2NhbGNfdHJic19sZWZ0KCkgdG8gZGV0ZXJtaW5lIHRvdGFsIGF2YWlsYWJsZSBUUkJzIGFu ZCBzZXQgSU9DIGJpdAppZiB0aGUgdG90YWwgYXZhaWxhYmxlIFRSQnMgYXJlIHplcm8uIFNpbmNl IHRoZSBwcmVzZW50IHdvcmtpbmcgVFJCICh3aGljaAppcyBwYXNzZWQgYXMgYW4gYXJndW1lbnQg dG8gX19kd2MzX3ByZXBhcmVfb25lX3RyYigpICkgIGRvZXNuJ3QgeWV0IGhhdmUKdGhlIEhXTyBi aXQgc2V0IGJlZm9yZSBjYWxsaW5nIGR3YzNfY2FsY190cmJzX2xlZnQoKSwgdGhlcmUgYXJlIGNo YW5jZXMKdGhhdCBkd2MzX2NhbGNfdHJic19sZWZ0KCkgd3JvbmdseSBjYWxjdWxhdGVzIHRoaXMg cHJlc2VudCB3b3JraW5nIFRSQgphcyBmcmVlKHNpbmNlIHRoZSBIV08gYml0IGlzIG5vdCB5ZXQg c2V0KSBhbmQgcmV0dXJucyB0aGUgdG90YWwgYXZhaWxhYmxlClRSQnMgYXMgZ3JlYXRlciB0aGFu IHplcm8gKGluY2x1ZGluZyB0aGUgcHJlc2VudCB3b3JraW5nIFRSQikuIFRoaXMgY291bGQKYmUg YSBwcm9ibGVtLgoKVGhpcyBwYXRjaCBjb3JyZWN0cyB0aGUgYWJvdmUgbWVudGlvbmVkIHByb2Js ZW0gaW4gX19kd2MzX3ByZXBhcmVfb25lX3RyYigpCmJ5IGluY3JlZW1lbnRpbmcgdGhlIGRlcC0+ dHJiX2VucXVldWUgYXQgdGhlIGxhc3QgKGFmdGVyIHByZXBhcmluZyB0aGUgVFJCKQppbnN0ZWFk IG9mIGluY3JlZW1lbnRpbmcgYXQgdGhlIHN0YXJ0IGFuZCBzZXR0aW5nIHRoZSBJT0MgYml0IG9u bHkgaWYgdGhlCnRvdGFsIGF2YWlsYWJsZSBUUkJzIHJldHVybmVkIGJ5IGR3YzNfY2FsY190cmJz X2xlZnQoKSBpcyAxIC4gU2luY2Ugd2UgYXJlCmluY3JlZW1lbnRpbmcgdGhlIGRlcC0+dHJiX2Vu cXVldWUgYXQgdGhlIGxhc3QsIHRoZSBwcmVzZW50IHdvcmtpbmcgVFJCIGlzCmFsc28gY29uc2lk ZXJlZCBhcyBhdmFpbGFibGUgYnkgZHdjM19jYWxjX3RyYnNfbGVmdCgpIGFuZCBub24gemVybyB2 YWx1ZSBpcwpyZXR1cm5lZCAuIFNvLCBhY2NvcmRpbmcgdG8gdGhlIG1vZGlmaWVkIGxvZ2ljLCB3 aGVuIHRoZSB0b3RhbCBhdmFpbGFibGUKVFJCcyBpcyBlcXVhbCB0byAxIHRoYXQgbWVhbnMgdGhl IHRvdGFsIGF2YWlsYWJsZSBUUkJzIGluIHRoZSBwb29sIGFyZSAwLgoKU2lnbmVkLW9mZi1ieTog QW51cmFnIEt1bWFyIFZ1bGlzaGEgPGFudXJhZy5rdW1hci52dWxpc2hhQHhpbGlueC5jb20+ClJl dmlld2VkLWJ5OiBUaGluaCBOZ3V5ZW4gPHRoaW5obkBzeW5vcHN5cy5jb20+ClRlc3RlZC1CeTog VGVqYXMgSm9nbGVrYXIgPHRlamFzLmpvZ2xla2FyQHN5bm9wc3lzLmNvbT4KLS0tCiBDaGFuZ2Vz IGluIHY2OgoJMS4gTm9uZQoKIENoYW5nZXMgaW4gdjU6CgkxLiBOb25lCgogQ2hhbmdlcyBpbiB2 NDoKCTEuIENvcnJlY3RlZCB0aGUgY29tbWl0IG1lc3NhZ2UgYXMgc3VnZ2VzdGVkIGJ5ICJUaGlu aCBOZ3V5ZW4iCgogQ2hhbmdlcyBpbiB2MzoKCTEuIENvcnJlY3RlZCB0aGUgbG9naWMgZm9yIHNl dHRpbmcgSFdPIGJpdCBhcyBzdWdnZXN0ZWQgYnkgIlRoaW5oIE5ndXllbiIKCiBDaGFuZ2VzIGlu IHYyOgoJMS4gQ2hhbmdlZCB0aGUgY29tbWl0IG1lc3NhZ2UKLS0tCiBkcml2ZXJzL3VzYi9kd2Mz L2dhZGdldC5jIHwgNiArKystLS0KIDEgZmlsZSBjaGFuZ2VkLCAzIGluc2VydGlvbnMoKyksIDMg ZGVsZXRpb25zKC0pCgpkaWZmIC0tZ2l0IGEvZHJpdmVycy91c2IvZHdjMy9nYWRnZXQuYyBiL2Ry aXZlcnMvdXNiL2R3YzMvZ2FkZ2V0LmMKaW5kZXggOWJmMTY4OC4uMmQ0YjE4NCAxMDA2NDQKLS0t IGEvZHJpdmVycy91c2IvZHdjMy9nYWRnZXQuYworKysgYi9kcml2ZXJzL3VzYi9kd2MzL2dhZGdl dC5jCkBAIC05MTMsOCArOTEzLDYgQEAgc3RhdGljIHZvaWQgX19kd2MzX3ByZXBhcmVfb25lX3Ry YihzdHJ1Y3QgZHdjM19lcCAqZGVwLCBzdHJ1Y3QgZHdjM190cmIgKnRyYiwKIAlzdHJ1Y3QgdXNi X2dhZGdldAkqZ2FkZ2V0ID0gJmR3Yy0+Z2FkZ2V0OwogCWVudW0gdXNiX2RldmljZV9zcGVlZAlz cGVlZCA9IGdhZGdldC0+c3BlZWQ7CiAKLQlkd2MzX2VwX2luY19lbnEoZGVwKTsKLQogCXRyYi0+ c2l6ZSA9IERXQzNfVFJCX1NJWkVfTEVOR1RIKGxlbmd0aCk7CiAJdHJiLT5icGwgPSBsb3dlcl8z Ml9iaXRzKGRtYSk7CiAJdHJiLT5icGggPSB1cHBlcl8zMl9iaXRzKGRtYSk7CkBAIC05OTMsNyAr OTkxLDcgQEAgc3RhdGljIHZvaWQgX19kd2MzX3ByZXBhcmVfb25lX3RyYihzdHJ1Y3QgZHdjM19l cCAqZGVwLCBzdHJ1Y3QgZHdjM190cmIgKnRyYiwKIAl9CiAKIAlpZiAoKCFub19pbnRlcnJ1cHQg JiYgIWNoYWluKSB8fAotCQkJKGR3YzNfY2FsY190cmJzX2xlZnQoZGVwKSA9PSAwKSkKKwkJCShk d2MzX2NhbGNfdHJic19sZWZ0KGRlcCkgPT0gMSkpCiAJCXRyYi0+Y3RybCB8PSBEV0MzX1RSQl9D VFJMX0lPQzsKIAogCWlmIChjaGFpbikKQEAgLTEwMTQsNiArMTAxMiw4IEBAIHN0YXRpYyB2b2lk IF9fZHdjM19wcmVwYXJlX29uZV90cmIoc3RydWN0IGR3YzNfZXAgKmRlcCwgc3RydWN0IGR3YzNf dHJiICp0cmIsCiAKIAl0cmItPmN0cmwgfD0gRFdDM19UUkJfQ1RSTF9IV087CiAKKwlkd2MzX2Vw X2luY19lbnEoZGVwKTsKKwogCXRyYWNlX2R3YzNfcHJlcGFyZV90cmIoZGVwLCB0cmIpOwogfQog Cg==