Received: by 2002:a05:6a10:22f:0:0:0:0 with SMTP id 15csp1549549pxk; Thu, 10 Sep 2020 19:36:38 -0700 (PDT) X-Google-Smtp-Source: ABdhPJyS2IL6RemVFV+zheDMNvfd+A7ijX/cFjrJDrE+DapXeaJs+feDarLBHg6nCfqd5AcN3nPE X-Received: by 2002:a17:906:b74a:: with SMTP id fx10mr11712875ejb.232.1599791798491; Thu, 10 Sep 2020 19:36:38 -0700 (PDT) ARC-Seal: i=1; a=rsa-sha256; t=1599791798; cv=none; d=google.com; s=arc-20160816; b=j2heYQSGePCnVYTO/+WTuHYY6L900SMpM4QHUsXXLFJULgK18scSAZmAOnyfOnbQ0V fupktBuGzEoyTi2IVL7crvV078kVpbAwy7WbFj+krEQKbZpkEPMbMSZHOp4RHvyY+NJV BCTgQQtkS01BMv+AylIbeFqt4RjywbQeOkFE2lQsmmK0CORiMwmedmySc/Uw+XRA34u8 ecgy8TkEuVGAEjL6chAL4wEK9tdAoiaOyb1F+eFMrXP4iUJwIYWn5n2zRu+acoICDHJA xo42k9BYpGkVK5xiQaAh978WZsWZ+lSVF/hZAYKasM8hlxGtj5JjWHjt/uRkceXj5a5Y XCqA== ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=arc-20160816; h=list-id:precedence:sender:content-transfer-encoding:mime-version :references:in-reply-to:date:cc:to:from:subject:message-id :dkim-signature; bh=7MYSoZ5QxzUzH8hLs5rwGOWaWX5IAIFzofz6EFN77nw=; b=Ap8my6tGCBoTvSYzWf0XgfGCqq3iQ2rd8SAtyUI8ABmdqlFDZKE0TMLEyBGpNP8uuo Rp5WII01ZLxt3WBoryYGTo3hXjQYkbmaoV/VSf7dCX6M9VGPzJdKmOnZjojtqV2BdJbK Ft5fHahFovPopqQfX19gExvontO52g1kOI3SugQpynSTvJ2iegUN0xdjE/Ygxaju8tdS BkYX8Gj8+nGs37UO5CFNXBx6EnmdAZuVCn8AyZItNUwiNWbykDE06yuvC77aDVKwULB9 izDGWcgUmdD3LdpuLFMU/qUWE6KrtH9acgwQ/A9EtaFhbAMotCUexUjYNQX1C0KKwPnG tXJA== ARC-Authentication-Results: i=1; mx.google.com; dkim=pass header.i=@mediatek.com header.s=dk header.b=ibXdIM20; spf=pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 23.128.96.18 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org; dmarc=pass (p=NONE sp=NONE dis=NONE) header.from=mediatek.com Return-Path: Received: from vger.kernel.org (vger.kernel.org. [23.128.96.18]) by mx.google.com with ESMTP id s12si350244ejd.718.2020.09.10.19.36.15; Thu, 10 Sep 2020 19:36:38 -0700 (PDT) Received-SPF: pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 23.128.96.18 as permitted sender) client-ip=23.128.96.18; Authentication-Results: mx.google.com; dkim=pass header.i=@mediatek.com header.s=dk header.b=ibXdIM20; spf=pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 23.128.96.18 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org; dmarc=pass (p=NONE sp=NONE dis=NONE) header.from=mediatek.com Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1725779AbgIKCf2 (ORCPT + 99 others); Thu, 10 Sep 2020 22:35:28 -0400 Received: from Mailgw01.mediatek.com ([1.203.163.78]:41913 "EHLO mailgw01.mediatek.com" rhost-flags-OK-FAIL-OK-FAIL) by vger.kernel.org with ESMTP id S1725300AbgIKCf0 (ORCPT ); Thu, 10 Sep 2020 22:35:26 -0400 X-UUID: c52ce2491d904385a2e9bf67c644ec12-20200911 DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=mediatek.com; s=dk; h=Content-Transfer-Encoding:MIME-Version:Content-Type:References:In-Reply-To:Date:CC:To:From:Subject:Message-ID; bh=7MYSoZ5QxzUzH8hLs5rwGOWaWX5IAIFzofz6EFN77nw=; b=ibXdIM20AUuJL2p9ifojfLSaYFPXfaicGvwMuHr+bsVD8ndq8a4jlwQhlRpxhjD/ECPPdWT3k/hMMKALsXy9B+d/hFlMuX00mNFpQiLkZ8VvFuvuac8DX9XNA9PdbC67AIlBVlbzkPBjCV9dUmfyf1P+Zze7XMOrM15/EYHlRm8=; X-UUID: c52ce2491d904385a2e9bf67c644ec12-20200911 Received: from mtkcas34.mediatek.inc [(172.27.4.253)] by mailgw01.mediatek.com (envelope-from ) (mailgw01.mediatek.com ESMTP with TLSv1.2 ECDHE-RSA-AES256-SHA384 256/256) with ESMTP id 51367424; Fri, 11 Sep 2020 10:35:19 +0800 Received: from MTKCAS36.mediatek.inc (172.27.4.186) by MTKMBS33N2.mediatek.inc (172.27.4.76) with Microsoft SMTP Server (TLS) id 15.0.1497.2; Fri, 11 Sep 2020 10:35:16 +0800 Received: from [10.17.3.153] (10.17.3.153) by MTKCAS36.mediatek.inc (172.27.4.170) with Microsoft SMTP Server id 15.0.1497.2 via Frontend Transport; Fri, 11 Sep 2020 10:35:13 +0800 Message-ID: <1599791601.24609.5.camel@mhfsdcap03> Subject: Re: [PATCH RESEND v3 04/11] usb: xhci-rcar: convert to readl_poll_timeout_atomic() From: Chunfeng Yun To: Daniel Thompson , Yoshihiro Shimoda CC: Greg Kroah-Hartman , Mathias Nyman , Felipe Balbi , "Matthias Brugger" , Douglas Anderson , "Eric W. Biederman" , Lee Jones , Sumit Garg , Jann Horn , Arnd Bergmann , Jason Yan , Chuhong Yuan , "Gustavo A. R. Silva" , Ben Dooks , Saurav Girepunje , , , , , Mathias Nyman , Yoshihiro Shimoda Date: Fri, 11 Sep 2020 10:33:21 +0800 In-Reply-To: <20200910131212.wm7zskxvcesl652c@holly.lan> References: <1599726112-4439-1-git-send-email-chunfeng.yun@mediatek.com> <1599726112-4439-4-git-send-email-chunfeng.yun@mediatek.com> <20200910131212.wm7zskxvcesl652c@holly.lan> Content-Type: text/plain; charset="UTF-8" X-Mailer: Evolution 3.10.4-0ubuntu2 MIME-Version: 1.0 X-TM-SNTS-SMTP: 0656D636ED552509600E962FFCC7659B588E3C6D24BA40A07694E3B2815115EF2000:8 X-MTK: N Content-Transfer-Encoding: base64 Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org T24gVGh1LCAyMDIwLTA5LTEwIGF0IDE0OjEyICswMTAwLCBEYW5pZWwgVGhvbXBzb24gd3JvdGU6 DQo+IE9uIFRodSwgU2VwIDEwLCAyMDIwIGF0IDA0OjIxOjQ1UE0gKzA4MDAsIENodW5mZW5nIFl1 biB3cm90ZToNCj4gPiBVc2UgcmVhZGxfcG9sbF90aW1lb3V0X2F0b21pYygpIHRvIHNpbXBsaWZ5 IGNvZGUNCj4gPiANCj4gPiBDYzogTWF0aGlhcyBOeW1hbiA8bWF0aGlhcy5ueW1hbkBsaW51eC5p bnRlbC5jb20+DQo+ID4gQ2M6IFlvc2hpaGlybyBTaGltb2RhIDx5b3NoaWhpcm8uc2hpbW9kYS51 aEByZW5lc2FzLmNvbT4NCj4gPiBTaWduZWQtb2ZmLWJ5OiBDaHVuZmVuZyBZdW4gPGNodW5mZW5n Lnl1bkBtZWRpYXRlay5jb20+DQo+ID4gLS0tDQo+ID4gdjJ+djM6IG5vIGNoYW5nZXMNCj4gPiAt LS0NCj4gPiAgZHJpdmVycy91c2IvaG9zdC94aGNpLXJjYXIuYyB8IDQzICsrKysrKysrKysrKy0t LS0tLS0tLS0tLS0tLS0tLS0tLS0tLS0tLS0tLS0NCj4gPiAgMSBmaWxlIGNoYW5nZWQsIDEyIGlu c2VydGlvbnMoKyksIDMxIGRlbGV0aW9ucygtKQ0KPiA+IA0KPiA+IGRpZmYgLS1naXQgYS9kcml2 ZXJzL3VzYi9ob3N0L3hoY2ktcmNhci5jIGIvZHJpdmVycy91c2IvaG9zdC94aGNpLXJjYXIuYw0K PiA+IGluZGV4IGMxMDI1ZDMuLjc0ZjgzNmYgMTAwNjQ0DQo+ID4gLS0tIGEvZHJpdmVycy91c2Iv aG9zdC94aGNpLXJjYXIuYw0KPiA+ICsrKyBiL2RyaXZlcnMvdXNiL2hvc3QveGhjaS1yY2FyLmMN Cj4gPiBAQCAtNiw2ICs2LDcgQEANCj4gPiAgICovDQo+ID4gIA0KPiA+ICAjaW5jbHVkZSA8bGlu dXgvZmlybXdhcmUuaD4NCj4gPiArI2luY2x1ZGUgPGxpbnV4L2lvcG9sbC5oPg0KPiA+ICAjaW5j bHVkZSA8bGludXgvbW9kdWxlLmg+DQo+ID4gICNpbmNsdWRlIDxsaW51eC9wbGF0Zm9ybV9kZXZp Y2UuaD4NCj4gPiAgI2luY2x1ZGUgPGxpbnV4L29mLmg+DQo+ID4gQEAgLTEyNyw4ICsxMjgsNyBA QCBzdGF0aWMgaW50IHhoY2lfcmNhcl9kb3dubG9hZF9maXJtd2FyZShzdHJ1Y3QgdXNiX2hjZCAq aGNkKQ0KPiA+ICAJdm9pZCBfX2lvbWVtICpyZWdzID0gaGNkLT5yZWdzOw0KPiA+ICAJc3RydWN0 IHhoY2lfcGxhdF9wcml2ICpwcml2ID0gaGNkX3RvX3hoY2lfcHJpdihoY2QpOw0KPiA+ICAJY29u c3Qgc3RydWN0IGZpcm13YXJlICpmdzsNCj4gPiAtCWludCByZXR2YWwsIGluZGV4LCBqLCB0aW1l Ow0KPiA+IC0JaW50IHRpbWVvdXQgPSAxMDAwMDsNCj4gPiArCWludCByZXR2YWwsIGluZGV4LCBq Ow0KPiA+ICAJdTMyIGRhdGEsIHZhbCwgdGVtcDsNCj4gPiAgCXUzMiBxdWlya3MgPSAwOw0KPiA+ ICAJY29uc3Qgc3RydWN0IHNvY19kZXZpY2VfYXR0cmlidXRlICphdHRyOw0KPiA+IEBAIC0xNjYs MzIgKzE2NiwxOSBAQCBzdGF0aWMgaW50IHhoY2lfcmNhcl9kb3dubG9hZF9maXJtd2FyZShzdHJ1 Y3QgdXNiX2hjZCAqaGNkKQ0KPiA+ICAJCXRlbXAgfD0gUkNBUl9VU0IzX0RMX0NUUkxfRldfU0VU X0RBVEEwOw0KPiA+ICAJCXdyaXRlbCh0ZW1wLCByZWdzICsgUkNBUl9VU0IzX0RMX0NUUkwpOw0K PiA+ICANCj4gPiAtCQlmb3IgKHRpbWUgPSAwOyB0aW1lIDwgdGltZW91dDsgdGltZSsrKSB7DQo+ ID4gLQkJCXZhbCA9IHJlYWRsKHJlZ3MgKyBSQ0FSX1VTQjNfRExfQ1RSTCk7DQo+ID4gLQkJCWlm ICgodmFsICYgUkNBUl9VU0IzX0RMX0NUUkxfRldfU0VUX0RBVEEwKSA9PSAwKQ0KPiA+IC0JCQkJ YnJlYWs7DQo+ID4gLQkJCXVkZWxheSgxKTsNCj4gPiAtCQl9DQo+ID4gLQkJaWYgKHRpbWUgPT0g dGltZW91dCkgew0KPiA+IC0JCQlyZXR2YWwgPSAtRVRJTUVET1VUOw0KPiA+ICsJCXJldHZhbCA9 IHJlYWRsX3BvbGxfdGltZW91dF9hdG9taWMocmVncyArIFJDQVJfVVNCM19ETF9DVFJMLA0KPiA+ ICsJCQkJdmFsLCAhKHZhbCAmIFJDQVJfVVNCM19ETF9DVFJMX0ZXX1NFVF9EQVRBMCksDQo+ID4g KwkJCQkxLCAxMDAwMCk7DQo+ID4gKwkJaWYgKHJldHZhbCA8IDApDQo+ID4gIAkJCWJyZWFrOw0K PiA+IC0JCX0NCj4gPiAgCX0NCj4gPiAgDQo+ID4gIAl0ZW1wID0gcmVhZGwocmVncyArIFJDQVJf VVNCM19ETF9DVFJMKTsNCj4gPiAgCXRlbXAgJj0gflJDQVJfVVNCM19ETF9DVFJMX0VOQUJMRTsN Cj4gPiAgCXdyaXRlbCh0ZW1wLCByZWdzICsgUkNBUl9VU0IzX0RMX0NUUkwpOw0KPiA+ICANCj4g PiAtCWZvciAodGltZSA9IDA7IHRpbWUgPCB0aW1lb3V0OyB0aW1lKyspIHsNCj4gPiAtCQl2YWwg PSByZWFkbChyZWdzICsgUkNBUl9VU0IzX0RMX0NUUkwpOw0KPiA+IC0JCWlmICh2YWwgJiBSQ0FS X1VTQjNfRExfQ1RSTF9GV19TVUNDRVNTKSB7DQo+ID4gLQkJCXJldHZhbCA9IDA7DQo+ID4gLQkJ CWJyZWFrOw0KPiA+IC0JCX0NCj4gPiAtCQl1ZGVsYXkoMSk7DQo+ID4gLQl9DQo+ID4gLQlpZiAo dGltZSA9PSB0aW1lb3V0KQ0KPiA+IC0JCXJldHZhbCA9IC1FVElNRURPVVQ7DQo+ID4gKwlyZXR2 YWwgPSByZWFkbF9wb2xsX3RpbWVvdXRfYXRvbWljKChyZWdzICsgUkNBUl9VU0IzX0RMX0NUUkwp LA0KPiA+ICsJCQl2YWwsICh2YWwgJiBSQ0FSX1VTQjNfRExfQ1RSTF9GV19TVUNDRVNTKSwgMSwg MTAwMDApOw0KPiANCj4gRGlyZWN0bHkgYXNzaWduaW5nIHRvIHJldHZhbCBhdCB0aGlzIHBvaW50 IHdpbGwgY2xvYmJlciBhIHByZXZpb3VzDQo+IC1FVElNRURPVVQgZXJyb3IuDQo+IA0KPiBJbiBv dGhlciB3b3JkcyBpZiB0aGVyZSBpcyBhIHRpbWVvdXQgd2FpdGluZyBmb3IgRldfU0VUX0RBVEEw LCBidXQgbm90IGZvcg0KPiBEV19TVUNDRVNTLCB0aGVuIHdlIHdpbGwgcmV0dXJuIHRoZSB3cm9u ZyByZXR1cm4gdmFsdWUuDQpZZXMsIGFncmVlIHdpdGggeW91LCBidXQgc2VlbXMgSSBrZWVwIGl0 cyBvcmlnaW5hbCBsb2dpYyB1bmNoYW5nZWQuDQoNCkhpIFlvc2hpaGlybywNCg0KICBXaGF0IGRv IHRoaW5rIGFib3V0IERhbmllbCdzIHN1Z2dlc3Rpb24/IHNob3VsZCBJIGZpeCBpdCB1cD8NCg0K PiANCj4gDQo+IERhbmllbC4NCj4gDQo+IA0KPiA+ICANCj4gPiAgCXJlbGVhc2VfZmlybXdhcmUo ZncpOw0KPiA+ICANCj4gPiBAQCAtMjAwLDE4ICsxODcsMTIgQEAgc3RhdGljIGludCB4aGNpX3Jj YXJfZG93bmxvYWRfZmlybXdhcmUoc3RydWN0IHVzYl9oY2QgKmhjZCkNCj4gPiAgDQo+ID4gIHN0 YXRpYyBib29sIHhoY2lfcmNhcl93YWl0X2Zvcl9wbGxfYWN0aXZlKHN0cnVjdCB1c2JfaGNkICpo Y2QpDQo+ID4gIHsNCj4gPiAtCWludCB0aW1lb3V0ID0gMTAwMDsNCj4gPiArCWludCByZXR2YWw7 DQo+ID4gIAl1MzIgdmFsLCBtYXNrID0gUkNBUl9VU0IzX0FYSF9TVEFfUExMX0FDVElWRV9NQVNL Ow0KPiA+ICANCj4gPiAtCXdoaWxlICh0aW1lb3V0ID4gMCkgew0KPiA+IC0JCXZhbCA9IHJlYWRs KGhjZC0+cmVncyArIFJDQVJfVVNCM19BWEhfU1RBKTsNCj4gPiAtCQlpZiAoKHZhbCAmIG1hc2sp ID09IG1hc2spDQo+ID4gLQkJCXJldHVybiB0cnVlOw0KPiA+IC0JCXVkZWxheSgxKTsNCj4gPiAt CQl0aW1lb3V0LS07DQo+ID4gLQl9DQo+ID4gLQ0KPiA+IC0JcmV0dXJuIGZhbHNlOw0KPiA+ICsJ cmV0dmFsID0gcmVhZGxfcG9sbF90aW1lb3V0X2F0b21pYyhoY2QtPnJlZ3MgKyBSQ0FSX1VTQjNf QVhIX1NUQSwNCj4gPiArCQkJdmFsLCAoKHZhbCAmIG1hc2spID09IG1hc2spLCAxLCAxMDAwKTsN Cj4gPiArCXJldHVybiAhIXJldHZhbDsNCj4gDQo+IFRoaXMgZnVuY3Rpb24gcmV0dXJucyBhIGJv b2wgc28gISEgaXMgZWl0aGVyIHdyb25nIG9yIHJlZHVuZGFudC4uLiBJDQo+IHRoaW5rIGluIHRo aXMgY2FzZSBpdCBpcyB3cm9uZyBhbmQgc2hvdWxkIGJlIGEgc2luZ2xlICEgLg0KWWVzLCB3aWxs IGZpeCBpdA0KDQpUaGFua3MgYSBsb3QNCj4gDQo+IA0KPiBEYW5pZWwuDQoNCg==