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: [v4] USB: Don't enable LPM if it's already enabled From: Greg Kroah-Hartman Message-Id: <20190111091207.GE15610@kroah.com> Date: Fri, 11 Jan 2019 10:12:07 +0100 To: Alan Stern Cc: Kai Heng Feng , linux-usb@vger.kernel.org, linux-kernel@vger.kernel.org List-ID: T24gVHVlLCBKYW4gMDgsIDIwMTkgYXQgMTI6MzQ6MTdQTSAtMDUwMCwgQWxhbiBTdGVybiB3cm90 ZToKPiBPbiBXZWQsIDkgSmFuIDIwMTksIEthaSBIZW5nIEZlbmcgd3JvdGU6Cj4gCj4gPiA+IE9u IEphbiA4LCAyMDE5LCBhdCAxMTo0MSBQTSwgR3JlZyBLSCA8Z3JlZ2toQGxpbnV4Zm91bmRhdGlv bi5vcmc+IHdyb3RlOgo+ID4gPiAKPiA+ID4gT24gTW9uLCBEZWMgMDMsIDIwMTggYXQgMDY6MjY6 NDNQTSArMDgwMCwgS2FpLUhlbmcgRmVuZyB3cm90ZToKPiA+ID4+IFVTQiBCbHVldG9vdGggY29u dHJvbGxlciBRQ0EgUk9NRSAoMGNmMzplMDA3KSBzb21ldGltZXMgc3RvcHMgd29ya2luZwo+ID4g Pj4gYWZ0ZXIgUzM6Cj4gPiA+PiBbIDE2NS4xMTA3NDJdIEJsdWV0b290aDogaGNpMDogdXNpbmcg TlZNIGZpbGU6IHFjYS9udm1fdXNiXzAwMDAwMzAyLmJpbgo+ID4gPj4gWyAxNjguNDMyMDY1XSBC bHVldG9vdGg6IGhjaTA6IEZhaWxlZCB0byBzZW5kIGJvZHkgYXQgNCBvZiAxOTUzICgtMTEwKQo+ ID4gPj4gCj4gPiA+PiBBZnRlciBzb21lIGV4cGVyaW1lbnRzLCBJIGZvdW5kIHRoYXQgZGlzYWJs aW5nIExQTSBjYW4gd29ya2Fyb3VuZCB0aGUKPiA+ID4+IGlzc3VlLgo+ID4gPj4gCj4gPiA+PiBP biBzb21lIHBsYXRmb3JtcywgdGhlIFVTQiBwb3dlciBpcyBjdXQgZHVyaW5nIFMzLCBzbyB0aGUg ZHJpdmVyIHVzZXMKPiA+ID4+IHJlc2V0LXJlc3VtZSB0byByZXN1bWUgdGhlIGRldmljZS4gRHVy aW5nIHBvcnQgcmVzdW1lLCBMUE0gZ2V0cyBlbmFibGVkCj4gPiA+PiB0d2ljZSwgYnkgdXNiX3Jl c2V0X2FuZF92ZXJpZnlfZGV2aWNlKCkgYW5kIHVzYl9wb3J0X3Jlc3VtZSgpLgo+ID4gPj4gCj4g PiA+PiBTbyBsZXQncyBlbmFibGUgTFBNIGZvciBqdXN0IG9uY2UsIGFzIHRoaXMgc29sdmVzIHRo ZSBpc3N1ZSBmb3IgdGhlCj4gPiA+PiBkZXZpY2UgaW4gcXVlc3Rpb24uCj4gPiA+PiAKPiA+ID4+ IEFsc28gY29uc29saWRhdGUgVVNCMiBMUE0gZnVuY3Rpb25zIHRvIHVzYl9lbmFibGVfdXNiMl9o YXJkd2FyZV9scG0oKQo+ID4gPj4gYW5kIHVzYl9kaXNhYmxlX3VzYjJfaGFyZHdhcmVfbHBtKCku Cj4gPiA+IAo+ID4gPiBJIHRob3VnaHQgSSBhc2tlZCBmb3IgdGhpcyB0byBiZSB0d28gZGlmZmVy ZW50IHBhdGNoZXMuICBPbmUgdGhhdCBkb2VzCj4gPiA+IHRoZSAiY29uc29saWRhdGlvbiIsIGFu ZCB0aGVuIG9uZSB0aGF0IGZpeGVzIHRoZSBidWcuICBZb3UgYXJlIG1peGluZwo+ID4gPiB0d28g ZGlmZmVyZW50IHRoaW5ncyBoZXJlIHRvZ2V0aGVyLCBtYWtpbmcgaXQgaGFyZGVyIHRvIHJldmll dy4KPiA+ID4gCj4gPiA+IENhbiB5b3UgcGxlYXNlIGJyZWFrIHRoaXMgdXAgYW5kIHNlbmQgYSBw YXRjaCBzZXJpZXMsIHdpdGggdGhlIGNvcnJlY3QKPiA+ID4gIkZpeGVzOiIgdGFnIGFkZGVkIHRv IHRoZSBzZWNvbmQgcGF0Y2ggdGhhdCBhY3R1YWxseSBmaXhlcyB0aGUgaXNzdWU/Cj4gPiAKPiA+ IFRoZSBjb25zb2xpZGF0aW9uIGl0c2VsZiBpcyB0aGUgZml4LCBzbyBJIGFtIG5vdCBzdXJlIGhv dyB0byBicmVhayB0aGlzIHVwLgo+ID4gCj4gPiBJbiByZXNldC1yZXN1bWUgY2FzZSwgTFBNIGdl dHMgZW5hYmxlZCB0d2ljZSwgYnkKPiA+IHVzYl9yZXNldF9hbmRfdmVyaWZ5X2RldmljZSgpIGFu ZCB1c2JfcG9ydF9yZXN1bWUoKS4KPiA+IAo+ID4gSWYgaXTigJlzIGEgbm9ybWFsIHJlc3VtZSwg TFBNIG9ubHkgZ2V0cyBlbmFibGVkIG9uY2UsIGJ5Cj4gPiB1c2JfcG9ydF9yZXN1bWUoKS4KPiA+ IAo+ID4gU2luY2UgYWxsIHRocmVlIGNoZWNrcyAoY2FwYWJsZSwgYWxsb3dlZCBhbmQgZW5hYmxl ZCkgYXJlIG1lcmdlZCB0bwo+ID4gYSBzaW5nbGUgcGxhY2UsIGVuYWJsaW5nIExQTSB0d2ljZSBj YW4gYmUgYXZvaWRlZCwgaGVuY2UgZml4aW5nIHRoZQo+ID4gaXNzdWUuCj4gCj4gT25lIGFwcHJv YWNoIHdvdWxkIGJlIHRvIGhhdmUgdGhlIGZpcnN0IHBhdGNoIGFkZCB0aGUgbmV3IGZ1bmN0aW9u cyBhbmQKPiBjaGFuZ2UgdGhlIGNvZGUgdG8gY2FsbCB0aGVtIGluc3RlYWQgb2YgdGhlIG9yaWdp bmFsIGZ1bmN0aW9uLCBidXQKPiBsZWF2ZXMgdGhlIGNoZWNrcyB0aGUgd2F5IHRoZXkgYXJlIG5v dy4gIFRoZW4gdGhlIHNlY29uZCBwYXRjaCBjb3VsZAo+IGFkZCB0aGUgY2hlY2tzIHRvIHRoZSBu ZXcgZnVuY3Rpb25zIGFuZCByZW1vdmUgdGhlbSBmcm9tIHRoZSBjYWxsCj4gc2l0ZXMuCgpZZXMs IHRoYXQgaXMgd2hhdCBJIHdhcyBsb29raW5nIGZvci4gIFRoYXQgd2F5LCBpZiB0aGUgImNoYW5n ZSIgcmVhbGx5CmRvZXMgY2F1c2UgcHJvYmxlbXMsIGl0IGlzIGVhc2llciB0byByZXZlcnQvZml4 LgoKdGhhbmtzLAoKZ3JlZyBrLWgK