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: usb: dwc2: Fix endless deferral probe From: Mauro Carvalho Chehab Message-Id: <20180112155107.39b9d765@vento.lan> Date: Fri, 12 Jan 2018 15:51:07 -0200 To: Arnd Bergmann Cc: Stefan Wahren , Felipe Balbi , Florian Fainelli , John Youn , Greg Kroah-Hartman , linux-usb@vger.kernel.org, Minas Harutyunyan , Kishon Vijay Abraham I , Eric Anholt , Linux ARM , Hans Verkuil List-ID: RW0gRnJpLCAxMiBKYW4gMjAxOCAxMDoxODo1OSArMDEwMApBcm5kIEJlcmdtYW5uIDxhcm5kQGFy bmRiLmRlPiBlc2NyZXZldToKCj4gT24gRnJpLCBKYW4gMTIsIDIwMTggYXQgOTowNiBBTSwgU3Rl ZmFuIFdhaHJlbiA8c3RlZmFuLndhaHJlbkBpMnNlLmNvbT4gd3JvdGU6Cj4gPiBBbSAxMi4wMS4y MDE4IHVtIDAwOjMyIHNjaHJpZWIgQXJuZCBCZXJnbWFubjogIAo+ID4+IE9uIFdlZCwgSmFuIDEw LCAyMDE4IGF0IDE6MTUgUE0sIFN0ZWZhbiBXYWhyZW4gPHN0ZWZhbi53YWhyZW5AaTJzZS5jb20+ ICAKPiAKPiA+PiBkaWZmIC0tZ2l0IGEvZHJpdmVycy9waHkvcGh5LWNvcmUuYyBiL2RyaXZlcnMv cGh5L3BoeS1jb3JlLmMKPiA+PiBpbmRleCBiNDk2NGIwNjdhZWMuLjkzYjU1ZmI3MWQ1NCAxMDA2 NDQKPiA+PiAtLS0gYS9kcml2ZXJzL3BoeS9waHktY29yZS5jCj4gPj4gKysrIGIvZHJpdmVycy9w aHkvcGh5LWNvcmUuYwo+ID4+IEBAIC00MTAsNiArNDEwLDEwIEBAIHN0YXRpYyBzdHJ1Y3QgcGh5 ICpfb2ZfcGh5X2dldChzdHJ1Y3QgZGV2aWNlX25vZGUKPiA+PiAqbnAsIGludCBpbmRleCkKPiA+ PiAgICAgICAgICBpZiAocmV0KQo+ID4+ICAgICAgICAgICAgICAgICAgcmV0dXJuIEVSUl9QVFIo LUVOT0RFVik7Cj4gPj4KPiA+PiArICAgICAgIC8qIFRoaXMgcGh5IHR5cGUgaGFuZGxlZCBieSB0 aGUgdXNiLXBoeSBzdWJzeXN0ZW0gZm9yIG5vdyAqLwo+ID4+ICsgICAgICAgaWYgKG9mX2Rldmlj ZV9pc19jb21wYXRpYmxlKG5wLCAidXNiLW5vcC14Y2VpdiIpKQo+ID4+ICsgICAgICAgICAgICAg ICByZXR1cm4gRVJSX1BUUigtRU5PREVWKTsKPiA+PiArCj4gPj4gICAgICAgICAgbXV0ZXhfbG9j aygmcGh5X3Byb3ZpZGVyX211dGV4KTsKPiA+PiAgICAgICAgICBwaHlfcHJvdmlkZXIgPSBvZl9w aHlfcHJvdmlkZXJfbG9va3VwKGFyZ3MubnApOwo+ID4+ICAgICAgICAgIGlmIChJU19FUlIocGh5 X3Byb3ZpZGVyKSB8fCAhdHJ5X21vZHVsZV9nZXQocGh5X3Byb3ZpZGVyLT5vd25lcikpCj4gPj4g eyAgCj4gPgo+ID4KPiA+IEkgdHJpZWQgdGhpcywgYnV0IGl0IGRvZXNuJ3Qgd29yay4gIm5wIiBp cyB0aGUgbm9kZSBvZiB0aGUgVVNCIGNvbnRyb2xsZXIsCj4gPiBub3Qgb2YgdGhlIHBoeT8gIAo+ IAo+IENvcnJlY3QsIHRoYXQgd2FzIGEgcmVhbGx5IGR1bWIgbWlzdGFrZSBvbiBteSBlbmQsIEkn bSBnbGFkIEkgYXNrZWQKPiB5b3UgdG8gdHJ5IGl0IGZpcnN0Lgo+IAo+IEknbGwgZml4IGl0IHVw IGFuZCBzZW5kIHRoZSByaWdodCB2ZXJzaW9uIHdpdGggYSBwcm9wZXIgY2hhbmdlbG9nIHJpZ2h0 IGF3YXkuCgpJIHN1c3BlY3QgeW91IG1lYW50IHRvIGRvLCBpbnN0ZWFkOgoKCgoKKGUuIGcuIGFy Z3MubnAsIGluc3RlYWQgb2YgbnApLgoKVGhlIGFib3ZlIHdvcmtzIGZvciBtZSBvbiBSUGkzOgoK JCB1bmFtZSAtYQpMaW51eCByYXNwYmVycnlwaSA0LjE1LjAtcmM3LW1jYysgIzI4IFNNUCBGcmkg SmFuIDEyIDEyOjM1OjE5IEVTVCAyMDE4IGFybXY3bCBHTlUvTGludXgKCiQgbHN1c2IKQnVzIDAw MSBEZXZpY2UgMDA1OiBJRCAwNDVlOjA3NTAgTWljcm9zb2Z0IENvcnAuIFdpcmVkIEtleWJvYXJk IDYwMApCdXMgMDAxIERldmljZSAwMDQ6IElEIDA1NzI6OTYwYyBDb25leGFudCBTeXN0ZW1zIChS b2Nrd2VsbCksIEluYy4gRFZCU2t5IFM5NjBDIERWQi1TMiB0dW5lcgpCdXMgMDAxIERldmljZSAw MDM6IElEIDA0MjQ6ZWMwMCBTdGFuZGFyZCBNaWNyb3N5c3RlbXMgQ29ycC4gU01TQzk1MTIvOTUx NCBGYXN0IEV0aGVybmV0IEFkYXB0ZXIKQnVzIDAwMSBEZXZpY2UgMDAyOiBJRCAwNDI0Ojk1MTQg U3RhbmRhcmQgTWljcm9zeXN0ZW1zIENvcnAuIFNNQzk1MTQgSHViCkJ1cyAwMDEgRGV2aWNlIDAw MTogSUQgMWQ2YjowMDAyIExpbnV4IEZvdW5kYXRpb24gMi4wIHJvb3QgaHViCgpTbywgaWYgeW91 IGNoYW5nZSBucCAtPiBhcmdzLm5wLCBmZWVsIGZyZWUgdG8gYWRkIG15OgoKVGVzdGVkLWJ5OiBN YXVybyBDYXJ2YWxobyBDaGVoYWIgPG1jaGVoYWJAcy1vcGVuc291cmNlLmNvbT4KClJlZ2FyZHMs Ck1hdXJvCi0tLQpUbyB1bnN1YnNjcmliZSBmcm9tIHRoaXMgbGlzdDogc2VuZCB0aGUgbGluZSAi dW5zdWJzY3JpYmUgbGludXgtdXNiIiBpbgp0aGUgYm9keSBvZiBhIG1lc3NhZ2UgdG8gbWFqb3Jk b21vQHZnZXIua2VybmVsLm9yZwpNb3JlIG1ham9yZG9tbyBpbmZvIGF0ICBodHRwOi8vdmdlci5r ZXJuZWwub3JnL21ham9yZG9tby1pbmZvLmh0bWwKCmRpZmYgLS1naXQgYS9kcml2ZXJzL3BoeS9w aHktY29yZS5jIGIvZHJpdmVycy9waHkvcGh5LWNvcmUuYwppbmRleCBiNDk2NGIwNjdhZWMuLjU4 NGNjMTQ2OWY3ZCAxMDA2NDQKLS0tIGEvZHJpdmVycy9waHkvcGh5LWNvcmUuYworKysgYi9kcml2 ZXJzL3BoeS9waHktY29yZS5jCkBAIC00MTAsNiArNDEwLDEwIEBAIHN0YXRpYyBzdHJ1Y3QgcGh5 ICpfb2ZfcGh5X2dldChzdHJ1Y3QgZGV2aWNlX25vZGUgKm5wLCBpbnQgaW5kZXgpCiAJaWYgKHJl dCkKIAkJcmV0dXJuIEVSUl9QVFIoLUVOT0RFVik7CiAKKyAgICAgICAvKiBUaGlzIHBoeSB0eXBl IGhhbmRsZWQgYnkgdGhlIHVzYi1waHkgc3Vic3lzdGVtIGZvciBub3cgKi8KKyAgICAgICBpZiAo b2ZfZGV2aWNlX2lzX2NvbXBhdGlibGUoYXJncy5ucCwgInVzYi1ub3AteGNlaXYiKSkKKwkJcmV0 dXJuIEVSUl9QVFIoLUVOT0RFVik7CisKIAltdXRleF9sb2NrKCZwaHlfcHJvdmlkZXJfbXV0ZXgp OwogCXBoeV9wcm92aWRlciA9IG9mX3BoeV9wcm92aWRlcl9sb29rdXAoYXJncy5ucCk7CiAJaWYg KElTX0VSUihwaHlfcHJvdmlkZXIpIHx8ICF0cnlfbW9kdWxlX2dldChwaHlfcHJvdmlkZXItPm93 bmVyKSkgewo=