From mboxrd@z Thu Jan 1 00:00:00 1970 From: Benjamin Tissoires Subject: Re: [RFC PATCH v6 2/5] ACPI: button: Add an optional workaround to fix an event missing issue for old userspace Date: Fri, 23 Jun 2017 16:03:08 +0200 Message-ID: <20170623140308.GP26073@mail.corp.redhat.com> References: <2a779ae8c280c968b3237ac4a3d9580df7262a46.1493951798.git.lv.zheng@intel.com> <14729dcd394f41facb871bd3cd3faf7fbf14231e.1498034513.git.lv.zheng@intel.com> Mime-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: base64 Return-path: Content-Disposition: inline In-Reply-To: <14729dcd394f41facb871bd3cd3faf7fbf14231e.1498034513.git.lv.zheng@intel.com> List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: systemd-devel-bounces@lists.freedesktop.org Sender: "systemd-devel" To: Lv Zheng Cc: Len Brown , systemd-devel@lists.freedesktop.org, "Rafael J . Wysocki" , "Rafael J . Wysocki" , linux-kernel@vger.kernel.org, Lv Zheng , linux-acpi@vger.kernel.org List-Id: linux-acpi@vger.kernel.org T24gSnVuIDIxIDIwMTcgb3IgdGhlcmVhYm91dHMsIEx2IFpoZW5nIHdyb3RlOgo+IFRoZXJlIGFy ZSBwbGF0Zm9ybSB2YXJpYXRpb25zIGltcGxlbWVudGluZyBBQ1BJIGxpZCBkZXZpY2UgaW4gZGlm ZmVyZW50Cj4gd2F5czoKPiAxLiBTb21lIHBsYXRmb3JtcyBzZW5kICJvcGVuIiBldmVudHMgdG8g T1MgYW5kIHRoZSBldmVudHMgYXJyaXZlIGJlZm9yZQo+ICAgIGJ1dHRvbiBkcml2ZXIgaXMgcmVz dW1lZDsKPiAyLiBTb21lIHBsYXRmb3JtcyBzZW5kICJvcGVuIiBldmVudHMgdG8gT1MsIGJ1dCB0 aGUgZXZlbnRzIGFycml2ZSBhZnRlcgo+ICAgIGJ1dHRvbiBkcml2ZXIgaXMgcmVzdW1lZCwgZXgu LCBTYW1zdW5nIE4yMTArOwo+IDMuIFNvbWUgcGxhdGZvcm1zIG5ldmVyIHNlbmQgIm9wZW4iIGV2 ZW50cyB0byBPUywgYnV0IHNlbmQgIm9wZW4iIGV2ZW50cyB0bwo+ICAgIHVwZGF0ZSB0aGUgY2Fj aGVkIF9MSUQgcmV0dXJuIHZhbHVlLCBhbmQgdGhlIHVwZGF0ZSBldmVudHMgYXJyaXZlIGJlZm9y ZQo+ICAgIGJ1dHRvbiBkcml2ZXIgaXMgcmVzdW1lZDsKPiA0LiBTb21lIHBsYXRmb3JtcyBuZXZl ciBzZW5kICJvcGVuIiBldmVudHMgdG8gT1MsIGJ1dCBzZW5kICJvcGVuIiBldmVudHMgdG8KPiAg ICB1cGRhdGUgdGhlIGNhY2hlZCBfTElEIHJldHVybiB2YWx1ZSwgYnV0IHRoZSB1cGRhdGUgZXZl bnRzIGFycml2ZSBhZnRlcgo+ICAgIGJ1dHRvbiBkcml2ZXIgaXMgcmVzdW1lZCwgZXguLCBTdXJm YWNlIFBybyAzOwo+IDUuIFNvbWUgcGxhdGZvcm1zIG5ldmVyIHNlbmQgIm9wZW4iIGV2ZW50cywg X0xJRCByZXR1cm5zIHZhbHVlIHN0aWNrcyB0bwo+ICAgICJjbG9zZSIsIGV4LiwgU3VyZmFjZSBQ cm8gMS4KPiBDdXJyZW50bHksIGFsbCBjYXNlcyB3b3JrIGZpbmUgd2l0aCBzeXN0ZW1kIDIzMywg YnV0IG9ubHkgY2FzZSAxLDIgd29yawo+IGZpbmUgd2l0aCBzeXN0ZW1kIDIyOS4KPiAKPiBDYXNl IDMsNCBjYW4gYmUgdHJlYXRlZCBhcyBhbiBldmVudCBtaXNzaW5nIGlzc3VlOgo+ICAgIEFmdGVy IHNlZWluZyBhIExJRCAiY2xvc2UiIGV2ZW50LCBzeXN0ZW1kIDIyOSB3aWxsIHdhaXQgc2V2ZXJh bCBzZWNvbmRzCj4gICAgKEhvbGRvZmZUaW1lb3V0U2VjKSBiZWZvcmUgc3VzcGVuZGluZyB0aGUg cGxhdGZvcm0uIFRodXMgb24gY2FzZSA0Cj4gICAgcGxhdGZvcm1zLCBpZiB1c2VycyBjbG9zZSBs aWQsIGFuZCByZS1vcGVuIGl0IGR1cmluZyB0aGUKPiAgICBIb2xkb2ZmVGltZW91dFNlYyBwZXJp b2QsIHRoZXJlIGlzIHN0aWxsIG5vICJvcGVuIiBldmVudHMgc2VlbiBieSB0aGUKPiAgICB1c2Vy c3BhY2UuIFRodXMgc3lzdGVtZCBzdGlsbCBjb25zaWRlcnMgdGhlIGxhc3Qgc3RhdGUgYXMgImNs b3NlIiBhbmQKPiAgICBzdXNwZW5kcyB0aGUgcGxhdGZvcm0gYWZ0ZXIgdGhlIEhvbGRvZmZUaW1l b3V0U2VjIHRpbWVzIG91dC4KPiAKPiBOb3RlIHRoYXQgbm90IG9ubHkgc3lzdGVtZCAyMjksIGRl c2t0b3AgbWFuYWdlcnMgKGV4LiwKPiBnbm9tZS1zZXR0aW5ncy1kYWVtb24pIGFsc28gc3VmZmVy IGZyb20gdGhpcyBpc3N1ZS4KPiAKPiBUaGlzIHBhdGNoIHRyaWVzIHRvIGZpeCB0aGlzIGlzc3Vl IGJ5IHBlcmlvZGljYWxseSBzZW5kaW5nIF9MSUQgcmV0dXJuCj4gdmFsdWUgdG8gdXNlcnNwYWNl LCB3aGljaCBlbnN1cmVzIHRvIHRyaWdnZXIgYSBTV19MSUQgZXZlbnQgd2hlbiB0aGUKPiB1bmRl cmx5aW5nIGhhcmR3YXJlIHN0YXRlIGhhcyBjaGFuZ2VkLiBBcyBhZGRpbmcgYSBwZXJpb2RpYyB0 aW1lciBpcyBub3QgYQo+IHBvd2VyIGZyaWVuZGx5IHdheSwgdGhpcyBwYXRjaCBwcmVwYXJlcyBh biBvcHRpb24gZm9yIHVzZXJzIHRvIGVuYWJsZSBvbgo+IGZhaWx1cmUgcGxhdGZvcm1zIGZvciBv bGQgdXNlcnNwYWNlIHByb2dyYW1zLgo+IAo+IFVzZXJzIGNhbiBjb25maWd1cmUgdXBkYXRlIGlu dGVydmFsIHZpYSBidXR0b24ubGlkX3VwZGF0ZV9pbnRlcnZhbC4KPiBUaGlzIHNob3VsZCBiZSBj b25maWd1cmVkIHRvIGEgc21hbGxlciB2YWx1ZSB0aGFuIEhvbGRvZmZUaW1lb3V0U2VjIGluCj4g L2V0Yy9zeXN0ZW1kL2xvZ2luZC5jb25mLgo+IAo+IENjOiA8c3lzdGVtZC1kZXZlbEBsaXN0cy5m cmVlZGVza3RvcC5vcmc+Cj4gQ2M6IEJlbmphbWluIFRpc3NvaXJlcyA8YmVuamFtaW4udGlzc29p cmVzQHJlZGhhdC5jb20+Cj4gQ2M6IFBldGVyIEh1dHRlcmVyIDxwZXRlci5odXR0ZXJlckB3aG8t dC5uZXQ+Cj4gU2lnbmVkLW9mZi1ieTogTHYgWmhlbmcgPGx2LnpoZW5nQGludGVsLmNvbT4KPiAt LS0KCk5BQ0s6IHdoYXQgaXMgdGhlIHBvaW50IGlmIHlvdSBqdXN0IHdhbnQgdG8gcHJvdmlkZSBh biBldmVudCB0byB1c2VyCnNwYWNlPyBXZSBhbHJlYWR5IGV4cGxhaW5lZCB0byB5b3UgdGhhdCB0 aGUgZXZlbnRzIGRvIG5vdCBtYXR0ZXIsIG9ubHkKdGhlIHN0YXRlIGlzLiBJZiB1c2VyIHNwYWNl IGhhcyBhbiBpc3N1ZSB3aXRoIGEgc3RhdGUgbm90IGJlaW5nIGluIHN5bmMsCml0J3MgYSB1c2Vy IHNwYWNlIGJ1ZyBhbmQgaXQgaGFzIHRvIGJlIGZpeGVkIGluIHVzZXIgc3BhY2UuCgpUaGlzIHBh dGNoIGNvdWxkIGJlIHVzZWZ1bCBpZiB0aGUgcHVycG9zZSB3YXMgdG8gbW9uaXRvciB0aGUgY2hh bmdlcwp3aGlsZSB0aGUgc3RhdGUgaXMgdW5yZWxpYWJsZSAoaW4gY2FzZSA0KToKLSBpZiBfTElE IHJldHVybnMgYSBkaWZmZXJlbnQgdmFsdWUgdGhhbiByaWdodCBhZnRlciBzdXNwZW5kLCBpdCBp cwogIGV4cGVjdGVkIHRvIGJlIHNvbWV0aGluZyByZWxpYWJsZSwgYW5kIHNvIHdlIGNvdWxkIHRo ZW4gcmUtY3JlYXRlIHRoZQogIGlucHV0IG5vZGUgYW5kIHByZXNlbnQgaXQgdG8gdXNlciBzcGFj ZQotIGlmIF9MSUQgc3RpbGwgcmV0dXJucyB0aGUgc2FtZSB2YWx1ZSBhZnRlciBhIHNvbWV3aGF0 IGxvbmcgZGVsYXkKICAoMTAtMjAgc2Vjb25kcyksIHRoZW4gd2UgY2FuIGNvbnNpZGVyIHRoZSB2 YWx1ZSB0byBiZSBjb3JyZWN0IGFuZAogIHJlLWNyZWF0ZSB0aGUgaW5wdXQgbm9kZS4KClBvbGxp bmcgZm9yIHBvbGxpbmcgYW5kIGhvcGluZyB1c2VyIHNwYWNlIHdpbGwgaGF2ZSBtb3JlIGNoYW5j ZXMgb2YKc2VlaW5nIGFuIGV2ZW50IGZvciBhbiBFVl9TVyBpcyBtb290LgoKQ2hlZXJzLApCZW5q YW1pbgoKPiAgZHJpdmVycy9hY3BpL2J1dHRvbi5jIHwgMTcgKysrKysrKysrKysrKysrLS0KPiAg MSBmaWxlIGNoYW5nZWQsIDE1IGluc2VydGlvbnMoKyksIDIgZGVsZXRpb25zKC0pCj4gCj4gZGlm ZiAtLWdpdCBhL2RyaXZlcnMvYWNwaS9idXR0b24uYyBiL2RyaXZlcnMvYWNwaS9idXR0b24uYwo+ IGluZGV4IDY3YTBkNzguLmE4YjExOWUgMTAwNjQ0Cj4gLS0tIGEvZHJpdmVycy9hY3BpL2J1dHRv bi5jCj4gKysrIGIvZHJpdmVycy9hY3BpL2J1dHRvbi5jCj4gQEAgLTEyNiw2ICsxMjYsMTQgQEAg c3RhdGljIHVuc2lnbmVkIGxvbmcgbGlkX25vdGlmeV90aW1lb3V0IF9fcmVhZF9tb3N0bHkgPSAx MDsKPiAgbW9kdWxlX3BhcmFtKGxpZF9ub3RpZnlfdGltZW91dCwgdWxvbmcsIDA2NDQpOwo+ICBN T0RVTEVfUEFSTV9ERVNDKGxpZF9ub3RpZnlfdGltZW91dCwgIlRpbWVvdXQgKHMpIGJlZm9yZSBy ZWNlaXZpbmcgbGlkIG5vdGlmaWNhdGlvbiIpOwo+ICAKPiArc3RhdGljIGJvb2wgbGlkX3Blcmlv ZGljX3VwZGF0ZSBfX3JlYWRfbW9zdGx5ID0gZmFsc2U7Cj4gK21vZHVsZV9wYXJhbShsaWRfcGVy aW9kaWNfdXBkYXRlLCBib29sLCAwNjQ0KTsKPiArTU9EVUxFX1BBUk1fREVTQyhsaWRfcGVyaW9k aWNfdXBkYXRlLCAiUGVyaW9kaWNhbGx5IHNlbmRpbmcgbGlkIHN0YXRlIHVwZGF0ZXMiKTsKPiAr Cj4gK3N0YXRpYyB1bnNpZ25lZCBsb25nIGxpZF91cGRhdGVfaW50ZXJ2YWwgX19yZWFkX21vc3Rs eSA9IDEgKiBNU0VDX1BFUl9TRUM7Cj4gK21vZHVsZV9wYXJhbShsaWRfdXBkYXRlX2ludGVydmFs LCB1bG9uZywgMDY0NCk7Cj4gK01PRFVMRV9QQVJNX0RFU0MobGlkX3VwZGF0ZV9pbnRlcnZhbCwg IkludGVydmFsIChtcykgYmV0d2VlbiBsaWQgcGVyaW9kaWMgdXBkYXRlcyIpOwo+ICsKPiAgLyog LS0tLS0tLS0tLS0tLS0tLS0tLS0tLS0tLS0tLS0tLS0tLS0tLS0tLS0tLS0tLS0tLS0tLS0tLS0t LS0tLS0tLS0tLS0tLS0tLS0KPiAgICAgICAgICAgICAgICAgICAgICAgICAgICAgICAgRlMgSW50 ZXJmYWNlICgvcHJvYykKPiAgICAgLS0tLS0tLS0tLS0tLS0tLS0tLS0tLS0tLS0tLS0tLS0tLS0t LS0tLS0tLS0tLS0tLS0tLS0tLS0tLS0tLS0tLS0tLS0tLS0tLS0gKi8KPiBAQCAtMzk1LDYgKzQw Myw4IEBAIHN0YXRpYyB2b2lkIGFjcGlfbGlkX2luaXRpYWxpemVfc3RhdGUoc3RydWN0IGFjcGlf ZGV2aWNlICpkZXZpY2UpCj4gIAkJYnJlYWs7Cj4gIAljYXNlIEFDUElfQlVUVE9OX0xJRF9JTklU X01FVEhPRDoKPiAgCQkodm9pZClhY3BpX2xpZF91cGRhdGVfc3RhdGUoZGV2aWNlKTsKPiArCQlp ZiAobGlkX3BlcmlvZGljX3VwZGF0ZSkKPiArCQkJYWNwaV9saWRfc3RhcnRfdGltZXIoZGV2aWNl LCBsaWRfdXBkYXRlX2ludGVydmFsKTsKPiAgCQlicmVhazsKPiAgCWNhc2UgQUNQSV9CVVRUT05f TElEX0lOSVRfSUdOT1JFOgo+ICAJZGVmYXVsdDoKPiBAQCAtNTYwLDggKzU3MCwxMSBAQCBzdGF0 aWMgaW50IGFjcGlfYnV0dG9uX2FkZChzdHJ1Y3QgYWNwaV9kZXZpY2UgKmRldmljZSkKPiAgCQkg KiBtb3JlIHdlIG9ubHkgY2FyZSBhYm91dCB0aGUgbGFzdCBvbmUuLi4KPiAgCQkgKi8KPiAgCQls aWRfZGV2aWNlID0gZGV2aWNlOwo+IC0JCWFjcGlfbGlkX3N0YXJ0X3RpbWVyKGRldmljZSwKPiAt CQkJbGlkX25vdGlmeV90aW1lb3V0ICogTVNFQ19QRVJfU0VDKTsKPiArCQlpZiAobGlkX3Blcmlv ZGljX3VwZGF0ZSkKPiArCQkJYWNwaV9saWRfaW5pdGlhbGl6ZV9zdGF0ZShkZXZpY2UpOwo+ICsJ CWVsc2UKPiArCQkJYWNwaV9saWRfc3RhcnRfdGltZXIoZGV2aWNlLAo+ICsJCQkJbGlkX25vdGlm eV90aW1lb3V0ICogTVNFQ19QRVJfU0VDKTsKPiAgCX0KPiAgCj4gIAlwcmludGsoS0VSTl9JTkZP IFBSRUZJWCAiJXMgWyVzXVxuIiwgbmFtZSwgYWNwaV9kZXZpY2VfYmlkKGRldmljZSkpOwo+IC0t IAo+IDIuNy40Cj4gCl9fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19f X19fCnN5c3RlbWQtZGV2ZWwgbWFpbGluZyBsaXN0CnN5c3RlbWQtZGV2ZWxAbGlzdHMuZnJlZWRl c2t0b3Aub3JnCmh0dHBzOi8vbGlzdHMuZnJlZWRlc2t0b3Aub3JnL21haWxtYW4vbGlzdGluZm8v c3lzdGVtZC1kZXZlbAo=