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: [4.19,014/110] usb: xhci: Prevent bus suspend if a port connect change or polling state is detected From: Thomas Zeitlhofer Message-Id: <20181213205357.GA5012@x1> Date: Thu, 13 Dec 2018 21:53:57 +0100 To: Mathias Nyman Cc: Greg Kroah-Hartman , linux-kernel@vger.kernel.org, stable@vger.kernel.org, linux-usb@vger.kernel.org List-ID: T24gVGh1LCBEZWMgMTMsIDIwMTggYXQgMDI6MjQ6MTRQTSArMDIwMCwgTWF0aGlhcyBOeW1hbiB3 cm90ZToKPiBPbiAxMy4xMi4yMDE4IDA5OjM2LCBHcmVnIEtyb2FoLUhhcnRtYW4gd3JvdGU6Cj4g PiBPbiBXZWQsIERlYyAxMiwgMjAxOCBhdCAxMTo1MzozNFBNICswMTAwLCBUaG9tYXMgWmVpdGxo b2ZlciB3cm90ZToKPiA+ID4gSGVsbG8sCj4gPiA+IAo+ID4gPiBPbiBUaHUsIE5vdiAyOSwgMjAx OCBhdCAwMzoxMTo0NVBNICswMTAwLCBHcmVnIEtyb2FoLUhhcnRtYW4gd3JvdGU6Cj4gPiA+ID4g NC4xOS1zdGFibGUgcmV2aWV3IHBhdGNoLiAgSWYgYW55b25lIGhhcyBhbnkgb2JqZWN0aW9ucywg cGxlYXNlIGxldCBtZQo+ID4gPiA+IGtub3cuCj4gPiA+ID4gCj4gPiA+ID4gLS0tLS0tLS0tLS0t LS0tLS0tCj4gPiA+ID4gCj4gPiA+ID4gRnJvbTogTWF0aGlhcyBOeW1hbiA8bWF0aGlhcy5ueW1h bkBsaW51eC5pbnRlbC5jb20+Cj4gPiA+ID4gCj4gPiA+ID4gY29tbWl0IDJmMzFhNjdmMDFhOGJl YjIyY2FlNzU0YzUzNTIyY2I2MWEwMDU3NTAgdXBzdHJlYW0uCj4gPiA+IFsuLi5dCj4gPiA+IAo+ ID4gPiBvbiBhIGN1cnJlbnQgVGhpbmtwYWQgWDEgWW9nYSwgdGhpcyBicmVha3MgcmVzdW1lIGZy b20gaGliZXJuYXRlIHN1Y2gKPiA+ID4gdGhhdCBvcGVuaW5nIHRoZSBsaWQgaGFzIChpbiB0aGUg cmVndWxhciB1c2UgY2FzZSwgc2VlIGJlbG93KSBubyBlZmZlY3QKPiA+ID4gYW55IG1vcmU6Cj4g PiA+IAo+ID4gPiBUaGUgc3lzdGVtIGlzIGNvbmZpZ3VyZWQgdG8gaGliZXJuYXRlIHdoZW4gdGhl IGxpZCBpcyBjbG9zZWQuIFNvLCB0aGUKPiA+ID4gZXhwZWN0ZWQgYmVoYXZpb3IsIHdoaWNoIGlz IHJlc3RvcmVkIGJ5IHJldmVydGluZyB0aGlzIHBhdGNoLCBpczoKPiA+ID4gCj4gPiA+IAljbG9z ZSBsaWQgPT4gc3lzdGVtIGhpYmVybmF0ZXMKPiA+ID4gCW9wZW4gbGlkID0+IHN5c3RlbSByZXN1 bWVzCj4gPiA+IAo+ID4gPiBXaXRoIHRoaXMgcGF0Y2gsIHRoZSBmb2xsb3dpbmcgdHdvIGNhc2Vz IGFyZSBvYnNlcnZlZDoKPiA+ID4gCj4gPiA+IAkxKQo+ID4gPiAJCWNsb3NlIGxpZCA9PiBzeXN0 ZW0gaGliZXJuYXRlcwo+ID4gPiAJCW9wZW4gbGlkID0+IHN5c3RlbSBzdGF5cyBvZmYKPiA+ID4g CQlwcmVzcyBwb3dlciBidXR0b24gPT4gc3lzdGVtIGJvb3RzIGFuZCByZXN1bWVzCj4gPiA+IAo+ ID4gPiAJMikKPiA+ID4gCQkjIHN5c3RlbWN0bCBoaWJlcm5hdGUgPT4gc3lzdGVtIGhpYmVybmF0 ZXMKPiA+ID4gCQljbG9zZSBsaWQKPiA+ID4gCQlvcGVuIGxpZCA9PiBzeXN0ZW0gcmVzdW1lcwo+ ID4gPiAKPiA+IAo+ID4gU28gdGhpcyBpcyBhIHByb2JsZW0gaW4gTGludXMncyB0cmVlPyAgSWYg c28sIGxldCdzIHdvcmsgdG8gZ2V0IHRoaXMKPiA+IGZpeGVkIHRoZXJlIGZpcnN0Lgo+ID4gCj4g PiBJZiBub3QsIHRoZW4gd2UgaGF2ZSBvdGhlciBpc3N1ZXMgOikKPiA+IAo+IAo+IFRoYXQgcGF0 Y2ggaW5jb3JyZWN0bHkgcmVhY3RzIHRvIFVTQjIgcG9sbGluZyBzdGF0ZXMgYXMgd2VsbCwKPiB3 aGljaCBjb3VsZCBjYXVzZSBpc3N1ZXMgbGlrZSB0aGlzLgo+IAo+IERvZXMgYXBwbHlpbmcgdGhl IGJlbG93IGNvZGUgaGVscD8KPiAKPiBkaWZmIC0tZ2l0IGEvZHJpdmVycy91c2IvaG9zdC94aGNp LWh1Yi5jIGIvZHJpdmVycy91c2IvaG9zdC94aGNpLWh1Yi5jCj4gaW5kZXggOTRhY2ExYi4uMDFi NTgxOCAxMDA2NDQKPiAtLS0gYS9kcml2ZXJzL3VzYi9ob3N0L3hoY2ktaHViLmMKPiArKysgYi9k cml2ZXJzL3VzYi9ob3N0L3hoY2ktaHViLmMKPiBAQCAtMTUwNyw3ICsxNTA3LDggQEAgaW50IHho Y2lfYnVzX3N1c3BlbmQoc3RydWN0IHVzYl9oY2QgKmhjZCkKPiAgICAgICAgICAgICAgICAgcG9y dHNjX2J1Zltwb3J0X2luZGV4XSA9IDA7Cj4gICAgICAgICAgICAgICAgIC8qIEJhaWwgb3V0IGlm IGEgVVNCMyBwb3J0IGhhcyBhIG5ldyBkZXZpY2UgaW4gbGluayB0cmFpbmluZyAqLwo+IC0gICAg ICAgICAgICAgICBpZiAoKHQxICYgUE9SVF9QTFNfTUFTSykgPT0gWERFVl9QT0xMSU5HKSB7Cj4g KyAgICAgICAgICAgICAgIGlmICgoaGNkLT5zcGVlZCA+PSBIQ0RfVVNCMykgJiYKPiArICAgICAg ICAgICAgICAgICAgICh0MSAmIFBPUlRfUExTX01BU0spID09IFhERVZfUE9MTElORykgewo+ICAg ICAgICAgICAgICAgICAgICAgICAgIGJ1c19zdGF0ZS0+YnVzX3N1c3BlbmRlZCA9IDA7Cj4gICAg ICAgICAgICAgICAgICAgICAgICAgc3Bpbl91bmxvY2tfaXJxcmVzdG9yZSgmeGhjaS0+bG9jaywg ZmxhZ3MpOwo+ICAgICAgICAgICAgICAgICAgICAgICAgIHhoY2lfZGJnKHhoY2ksICJCdXMgc3Vz cGVuZCBiYWlsb3V0LCBwb3J0IGluIHBvbGxpbmdcbiIpOwoKWWVzLCB0aGlzIGZpeGVzIHRoZSBw cm9ibGVtLgoKVGhhbmtzLAoKVGhvbWFzCg==