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Fri, 03 Jul 2020 10:16:33 -0700 (PDT) Date: Fri, 3 Jul 2020 18:16:26 +0100 From: Lee Jones To: Minas Harutyunyan Subject: Re: [PATCH 11/30] usb: dwc2: gadget: Avoid pointless read of EP control register Message-ID: <20200703171626.GC2743379@dell> References: <20200702144625.2533530-1-lee.jones@linaro.org> <20200702144625.2533530-12-lee.jones@linaro.org> <20200703072926.GA2322133@kroah.com> MIME-Version: 1.0 Content-Disposition: inline In-Reply-To: X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20200703_131636_225604_C19B90A0 X-CRM114-Status: GOOD ( 17.98 ) X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: Ben Dooks , Greg KH , "linux-usb@vger.kernel.org" , "linux-kernel@vger.kernel.org" , "linux-arm-kernel@lists.infradead.org" Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: base64 Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.org T24gRnJpLCAwMyBKdWwgMjAyMCwgTWluYXMgSGFydXR5dW55YW4gd3JvdGU6Cgo+IEhpLAo+IAo+ IE9uIDcvMy8yMDIwIDExOjI5IEFNLCBHcmVnIEtIIHdyb3RlOgo+ID4gT24gVGh1LCBKdWwgMDIs IDIwMjAgYXQgMDM6NDY6MDZQTSArMDEwMCwgTGVlIEpvbmVzIHdyb3RlOgo+ID4+IENvbW1pdCBl YzFmOWQ5ZjAxMzg0ICgidXNiOiBkd2MyOiBnYWRnZXQ6IHBhcml0eSBmaXggaW4gaXNvY2hyb25v dXMgbW9kZSIpIG1vdmVkCj4gPj4gdGhlc2UgY2hlY2tzIHRvIGR3YzJfaHNvdGdfY2hhbmdlX2Vw X2lzb19wYXJpdHkoKSBiYWNrIGluIDIwMTUuICBUaGUgYXNzaWduZWQKPiA+PiB2YWx1ZSBoYXNu J3QgYmVlbiByZWFkIGJhY2sgc2luY2UuICBMZXQncyByZW1vdmUgdGhlIHVubmVjZXNzYXJ5IEgv VyByZWFkLgo+ID4+Cj4gPj4gRml4ZXMgdGhlIGZvbGxvd2luZyBXPTEgd2FybmluZzoKPiA+Pgo+ ID4+ICAgZHJpdmVycy91c2IvZHdjMi9nYWRnZXQuYzogSW4gZnVuY3Rpb24g4oCYZHdjMl9oc290 Z19lcGludOKAmToKPiA+PiAgIGRyaXZlcnMvdXNiL2R3YzIvZ2FkZ2V0LmM6Mjk4MTo2OiB3YXJu aW5nOiB2YXJpYWJsZSDigJhjdHJs4oCZIHNldCBidXQgbm90IHVzZWQgWy1XdW51c2VkLWJ1dC1z ZXQtdmFyaWFibGVdCj4gPj4gICAyOTgxIHwgdTMyIGN0cmw7Cj4gPj4gICB8IF5+fn4KPiA+Pgo+ ID4+IENjOiBNaW5hcyBIYXJ1dHl1bnlhbiA8aG1pbmFzQHN5bm9wc3lzLmNvbT4KPiA+PiBDYzog QmVuIERvb2tzIDxiZW5Ac2ltdGVjLmNvLnVrPgo+ID4+IFNpZ25lZC1vZmYtYnk6IExlZSBKb25l cyA8bGVlLmpvbmVzQGxpbmFyby5vcmc+Cj4gPj4gLS0tCj4gPj4gICBkcml2ZXJzL3VzYi9kd2My L2dhZGdldC5jIHwgMiAtLQo+ID4+ICAgMSBmaWxlIGNoYW5nZWQsIDIgZGVsZXRpb25zKC0pCj4g Pj4KPiA+PiBkaWZmIC0tZ2l0IGEvZHJpdmVycy91c2IvZHdjMi9nYWRnZXQuYyBiL2RyaXZlcnMv dXNiL2R3YzIvZ2FkZ2V0LmMKPiA+PiBpbmRleCAxMTZlNjE3NWM3YTQ4Li5mYTA3ZTNmY2I4ODQx IDEwMDY0NAo+ID4+IC0tLSBhL2RyaXZlcnMvdXNiL2R3YzIvZ2FkZ2V0LmMKPiA+PiArKysgYi9k cml2ZXJzL3VzYi9kd2MyL2dhZGdldC5jCj4gPj4gQEAgLTI5NzUsMTAgKzI5NzUsOCBAQCBzdGF0 aWMgdm9pZCBkd2MyX2hzb3RnX2VwaW50KHN0cnVjdCBkd2MyX2hzb3RnICpoc290ZywgdW5zaWdu ZWQgaW50IGlkeCwKPiA+PiAgIAl1MzIgZXBjdGxfcmVnID0gZGlyX2luID8gRElFUENUTChpZHgp IDogRE9FUENUTChpZHgpOwo+ID4+ICAgCXUzMiBlcHNpel9yZWcgPSBkaXJfaW4gPyBESUVQVFNJ WihpZHgpIDogRE9FUFRTSVooaWR4KTsKPiA+PiAgIAl1MzIgaW50czsKPiA+PiAtCXUzMiBjdHJs Owo+ID4+ICAgCj4gPj4gICAJaW50cyA9IGR3YzJfZ2FkZ2V0X3JlYWRfZXBfaW50ZXJydXB0cyho c290ZywgaWR4LCBkaXJfaW4pOwo+ID4+IC0JY3RybCA9IGR3YzJfcmVhZGwoaHNvdGcsIGVwY3Rs X3JlZyk7Cj4gPiAKPiA+IEFzIHlvdSBrbm93LCBsb3RzIG9mIGhhcmR3YXJlIHJlcXVpcmVzIHJl YWRzIHRvIGhhcHBlbiB0byBkbyB0aGluZ3MsIHNvCj4gPiBhcmUgeW91IHN1cmUgaXQgaXMgc2Fm ZSB0byByZW1vdmUgdGhpcyByZWFkIGNhbGw/Cj4gPiAKPiAKPiBHcmVnLCB5ZXMsIGl0J3MgT2sg dG8gcmVtb3ZlIHRoaXMgdW5uZWNlc3NhcnkgcmVhZCB3aGljaCByZW1haW5lZCBmcm9tIAo+IHBy ZXZpb3VzIGltcGxlbWVudGF0aW9ucy4KPiAKPiBMZWUsIHBsZWFzZSBhZGQgIkZpeGVzOiIgdGFn IGFuZCByZXN1Ym1pdCB2Mi4KCklzIHRoaXMgc3VpdGFibGUgZm9yIFN0YWJsZSBHcmVnPwoKLS0g CkxlZSBKb25lcyBb5p2O55C85pavXQpTZW5pb3IgVGVjaG5pY2FsIExlYWQgLSBEZXZlbG9wZXIg U2VydmljZXMKTGluYXJvLm9yZyDilIIgT3BlbiBzb3VyY2Ugc29mdHdhcmUgZm9yIEFybSBTb0Nz CkZvbGxvdyBMaW5hcm86IEZhY2Vib29rIHwgVHdpdHRlciB8IEJsb2cKCl9fX19fX19fX19fX19f X19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fCmxpbnV4LWFybS1rZXJuZWwgbWFpbGlu ZyBsaXN0CmxpbnV4LWFybS1rZXJuZWxAbGlzdHMuaW5mcmFkZWFkLm9yZwpodHRwOi8vbGlzdHMu aW5mcmFkZWFkLm9yZy9tYWlsbWFuL2xpc3RpbmZvL2xpbnV4LWFybS1rZXJuZWwK