From mboxrd@z Thu Jan 1 00:00:00 1970 From: Jani Nikula Subject: Re: [PATCH] drm/dp/mst: close deadlock in connector destruction. Date: Mon, 15 Jun 2015 08:53:26 +0300 Message-ID: <87egld7c15.fsf@intel.com> References: <1434328468-21437-1-git-send-email-airlied@gmail.com> Mime-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: base64 Return-path: Received: from mga11.intel.com (mga11.intel.com [192.55.52.93]) by gabe.freedesktop.org (Postfix) with ESMTP id 5669E6E05B for ; Sun, 14 Jun 2015 22:55:17 -0700 (PDT) In-Reply-To: <1434328468-21437-1-git-send-email-airlied@gmail.com> List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: dri-devel-bounces@lists.freedesktop.org Sender: "dri-devel" To: Dave Airlie , dri-devel@lists.freedesktop.org List-Id: dri-devel@lists.freedesktop.org T24gTW9uLCAxNSBKdW4gMjAxNSwgRGF2ZSBBaXJsaWUgPGFpcmxpZWRAZ21haWwuY29tPiB3cm90 ZToKPiBGcm9tOiBEYXZlIEFpcmxpZSA8YWlybGllZEByZWRoYXQuY29tPgo+Cj4gSSd2ZSBvbmx5 IHNlZW4gdGhpcyBvbmNlLCBhbmQgSSBmYWlsZWQgdG8gY2FwdHVyZSB0aGUKPiBsb2NrZGVwIGJh Y2t0cmFjZSwgYnV0IEkgZGlkIHNvbWUgaW52ZXN0aWdhdGlvbnMuCj4KPiBJZiB3ZSBhcmUgY2Fs bGluZyBpbnRvIHRoZSBNU1QgbGF5ZXIgZnJvbSBFRElEIHByb2JpbmcsCj4gd2UgaGF2ZSB0aGUg bW9kZV9jb25maWcgbXV0ZXggaGVsZCwgaWYgZHVyaW5nIHRoYXQgRURJRAo+IHByb2JpbmcsIHRo ZSBNU1QgaHViIGdvZXMgYXdheSwgdGhlbiB3ZSBjYW4gZ2V0IGEgZGVhZGxvY2sKPiB3aGVyZSB0 aGUgY29ubmVjdG9yIGRlc3RydWN0aW9uIGZ1bmN0aW9uIGluIHRoZSBkcml2ZXIKPiB0cmllcyB0 byByZXRha2UgdGhlIG1vZGUgY29uZmlnIG11dGV4Lgo+Cj4gVGhpcyBvZmZsb2FkcyBjb25uZWN0 b3IgZGVzdHJ1Y3Rpb24gdG8gYSB3b3JrcXVldWUsCj4gYW5kIGF2b2lkIHRoZSBzdWJzZXF1ZW5j dCBsb2NrIG9yZGVyaW5nIGlzc3VlLgo+Cj4gU2lnbmVkLW9mZi1ieTogRGF2ZSBBaXJsaWUgPGFp cmxpZWRAcmVkaGF0LmNvbT4KPiAtLS0KPiAgZHJpdmVycy9ncHUvZHJtL2RybV9kcF9tc3RfdG9w b2xvZ3kuYyB8IDQwICsrKysrKysrKysrKysrKysrKysrKysrKysrKysrKysrKy0tCj4gIGluY2x1 ZGUvZHJtL2RybV9jcnRjLmggICAgICAgICAgICAgICAgfCAgMiArKwo+ICBpbmNsdWRlL2RybS9k cm1fZHBfbXN0X2hlbHBlci5oICAgICAgIHwgIDQgKysrKwo+ICAzIGZpbGVzIGNoYW5nZWQsIDQ0 IGluc2VydGlvbnMoKyksIDIgZGVsZXRpb25zKC0pCj4KPiBkaWZmIC0tZ2l0IGEvZHJpdmVycy9n cHUvZHJtL2RybV9kcF9tc3RfdG9wb2xvZ3kuYyBiL2RyaXZlcnMvZ3B1L2RybS9kcm1fZHBfbXN0 X3RvcG9sb2d5LmMKPiBpbmRleCBhODhhZTUxLi5jOThjOTZkIDEwMDY0NAo+IC0tLSBhL2RyaXZl cnMvZ3B1L2RybS9kcm1fZHBfbXN0X3RvcG9sb2d5LmMKPiArKysgYi9kcml2ZXJzL2dwdS9kcm0v ZHJtX2RwX21zdF90b3BvbG9neS5jCj4gQEAgLTg3MSw4ICs4NzEsMTYgQEAgc3RhdGljIHZvaWQg ZHJtX2RwX2Rlc3Ryb3lfcG9ydChzdHJ1Y3Qga3JlZiAqa3JlZikKPiAgCQlwb3J0LT52Y3BpLm51 bV9zbG90cyA9IDA7Cj4gIAo+ICAJCWtmcmVlKHBvcnQtPmNhY2hlZF9lZGlkKTsKPiAtCQlpZiAo cG9ydC0+Y29ubmVjdG9yKQo+IC0JCQkoKnBvcnQtPm1nci0+Y2JzLT5kZXN0cm95X2Nvbm5lY3Rv cikobWdyLCBwb3J0LT5jb25uZWN0b3IpOwo+ICsKPiArCQkvKiB3ZSBjYW4gZGVzdHJveSB0aGUg Y29ubmVjdG9yIGhlcmUsIGFzCgp3ZSAqY2FuJ3QqID8KCkJSLApKYW5pLgoKPiArCQkgICB3ZSBt aWdodCBiZSBob2xkaW5nIHRoZSBtb2RlX2NvbmZpZy5tdXRleAo+ICsJCSAgIGZyb20gYW4gRURJ RCByZXRyaWV2YWwgKi8KPiArCQlpZiAocG9ydC0+Y29ubmVjdG9yKSB7Cj4gKwkJCW11dGV4X2xv Y2soJm1nci0+ZGVzdHJveV9jb25uZWN0b3JfbG9jayk7Cj4gKwkJCWxpc3RfYWRkKCZwb3J0LT5j b25uZWN0b3ItPmRlc3Ryb3lfbGlzdCwgJm1nci0+ZGVzdHJveV9jb25uZWN0b3JfbGlzdCk7Cj4g KwkJCW11dGV4X3VubG9jaygmbWdyLT5kZXN0cm95X2Nvbm5lY3Rvcl9sb2NrKTsKPiArCQkJc2No ZWR1bGVfd29yaygmbWdyLT5kZXN0cm95X2Nvbm5lY3Rvcl93b3JrKTsKPiArCQl9Cj4gIAkJZHJt X2RwX3BvcnRfdGVhcmRvd25fcGR0KHBvcnQsIHBvcnQtPnBkdCk7Cj4gIAo+ICAJCWlmICghcG9y dC0+aW5wdXQgJiYgcG9ydC0+dmNwaS52Y3BpID4gMCkKPiBAQCAtMjY1Miw2ICsyNjYwLDMwIEBA IHN0YXRpYyB2b2lkIGRybV9kcF90eF93b3JrKHN0cnVjdCB3b3JrX3N0cnVjdCAqd29yaykKPiAg CW11dGV4X3VubG9jaygmbWdyLT5xbG9jayk7Cj4gIH0KPiAgCj4gK3N0YXRpYyB2b2lkIGRybV9k cF9kZXN0cm95X2Nvbm5lY3Rvcl93b3JrKHN0cnVjdCB3b3JrX3N0cnVjdCAqd29yaykKPiArewo+ ICsJc3RydWN0IGRybV9kcF9tc3RfdG9wb2xvZ3lfbWdyICptZ3IgPSBjb250YWluZXJfb2Yod29y aywgc3RydWN0IGRybV9kcF9tc3RfdG9wb2xvZ3lfbWdyLCBkZXN0cm95X2Nvbm5lY3Rvcl93b3Jr KTsKPiArCXN0cnVjdCBkcm1fY29ubmVjdG9yICpjb25uZWN0b3I7Cj4gKwo+ICsJLyoKPiArCSAq IE5vdCBhIHJlZ3VsYXIgbGlzdCB0cmF2ZXJzZSBhcyB3ZSBoYXZlIHRvIGRyb3AgdGhlIGRlc3Ry b3kKPiArCSAqIGNvbm5lY3RvciBsb2NrIGJlZm9yZSBkZXN0cm95aW5nIHRoZSBjb25uZWN0b3Is IHRvIGF2b2lkIEFCLT5CQQo+ICsJICogb3JkZXJpbmcgYmV0d2VlbiB0aGlzIGxvY2sgYW5kIHRo ZSBjb25maWcgbXV0ZXguCj4gKwkgKi8KPiArCWZvciAoOzspIHsKPiArCQltdXRleF9sb2NrKCZt Z3ItPmRlc3Ryb3lfY29ubmVjdG9yX2xvY2spOwo+ICsJCWNvbm5lY3RvciA9IGxpc3RfZmlyc3Rf ZW50cnlfb3JfbnVsbCgmbWdyLT5kZXN0cm95X2Nvbm5lY3Rvcl9saXN0LCBzdHJ1Y3QgZHJtX2Nv bm5lY3RvciwgZGVzdHJveV9saXN0KTsKPiArCQlpZiAoIWNvbm5lY3Rvcikgewo+ICsJCQltdXRl eF91bmxvY2soJm1nci0+ZGVzdHJveV9jb25uZWN0b3JfbG9jayk7Cj4gKwkJCWJyZWFrOwo+ICsJ CX0KPiArCQlsaXN0X2RlbCgmY29ubmVjdG9yLT5kZXN0cm95X2xpc3QpOwo+ICsJCW11dGV4X3Vu bG9jaygmbWdyLT5kZXN0cm95X2Nvbm5lY3Rvcl9sb2NrKTsKPiArCj4gKwkJbWdyLT5jYnMtPmRl c3Ryb3lfY29ubmVjdG9yKG1nciwgY29ubmVjdG9yKTsKPiArCX0KPiArfQo+ICsKPiAgLyoqCj4g ICAqIGRybV9kcF9tc3RfdG9wb2xvZ3lfbWdyX2luaXQgLSBpbml0aWFsaXNlIGEgdG9wb2xvZ3kg bWFuYWdlcgo+ICAgKiBAbWdyOiBtYW5hZ2VyIHN0cnVjdCB0byBpbml0aWFsaXNlCj4gQEAgLTI2 NzEsMTAgKzI3MDMsMTMgQEAgaW50IGRybV9kcF9tc3RfdG9wb2xvZ3lfbWdyX2luaXQoc3RydWN0 IGRybV9kcF9tc3RfdG9wb2xvZ3lfbWdyICptZ3IsCj4gIAltdXRleF9pbml0KCZtZ3ItPmxvY2sp Owo+ICAJbXV0ZXhfaW5pdCgmbWdyLT5xbG9jayk7Cj4gIAltdXRleF9pbml0KCZtZ3ItPnBheWxv YWRfbG9jayk7Cj4gKwltdXRleF9pbml0KCZtZ3ItPmRlc3Ryb3lfY29ubmVjdG9yX2xvY2spOwo+ ICAJSU5JVF9MSVNUX0hFQUQoJm1nci0+dHhfbXNnX3VwcSk7Cj4gIAlJTklUX0xJU1RfSEVBRCgm bWdyLT50eF9tc2dfZG93bnEpOwo+ICsJSU5JVF9MSVNUX0hFQUQoJm1nci0+ZGVzdHJveV9jb25u ZWN0b3JfbGlzdCk7Cj4gIAlJTklUX1dPUksoJm1nci0+d29yaywgZHJtX2RwX21zdF9saW5rX3By b2JlX3dvcmspOwo+ICAJSU5JVF9XT1JLKCZtZ3ItPnR4X3dvcmssIGRybV9kcF90eF93b3JrKTsK PiArCUlOSVRfV09SSygmbWdyLT5kZXN0cm95X2Nvbm5lY3Rvcl93b3JrLCBkcm1fZHBfZGVzdHJv eV9jb25uZWN0b3Jfd29yayk7Cj4gIAlpbml0X3dhaXRxdWV1ZV9oZWFkKCZtZ3ItPnR4X3dhaXRx KTsKPiAgCW1nci0+ZGV2ID0gZGV2Owo+ICAJbWdyLT5hdXggPSBhdXg7Cj4gQEAgLTI2OTksNiAr MjczNCw3IEBAIEVYUE9SVF9TWU1CT0woZHJtX2RwX21zdF90b3BvbG9neV9tZ3JfaW5pdCk7Cj4g ICAqLwo+ICB2b2lkIGRybV9kcF9tc3RfdG9wb2xvZ3lfbWdyX2Rlc3Ryb3koc3RydWN0IGRybV9k cF9tc3RfdG9wb2xvZ3lfbWdyICptZ3IpCj4gIHsKPiArCWZsdXNoX3dvcmsoJm1nci0+ZGVzdHJv eV9jb25uZWN0b3Jfd29yayk7Cj4gIAltdXRleF9sb2NrKCZtZ3ItPnBheWxvYWRfbG9jayk7Cj4g IAlrZnJlZShtZ3ItPnBheWxvYWRzKTsKPiAgCW1nci0+cGF5bG9hZHMgPSBOVUxMOwo+IGRpZmYg LS1naXQgYS9pbmNsdWRlL2RybS9kcm1fY3J0Yy5oIGIvaW5jbHVkZS9kcm0vZHJtX2NydGMuaAo+ IGluZGV4IGNhNzFjMDMuLjU0MjMzNTggMTAwNjQ0Cj4gLS0tIGEvaW5jbHVkZS9kcm0vZHJtX2Ny dGMuaAo+ICsrKyBiL2luY2x1ZGUvZHJtL2RybV9jcnRjLmgKPiBAQCAtNzMxLDYgKzczMSw4IEBA IHN0cnVjdCBkcm1fY29ubmVjdG9yIHsKPiAgCXVpbnQ4X3QgbnVtX2hfdGlsZSwgbnVtX3ZfdGls ZTsKPiAgCXVpbnQ4X3QgdGlsZV9oX2xvYywgdGlsZV92X2xvYzsKPiAgCXVpbnQxNl90IHRpbGVf aF9zaXplLCB0aWxlX3Zfc2l6ZTsKPiArCj4gKwlzdHJ1Y3QgbGlzdF9oZWFkIGRlc3Ryb3lfbGlz dDsKPiAgfTsKPiAgCj4gIC8qKgo+IGRpZmYgLS1naXQgYS9pbmNsdWRlL2RybS9kcm1fZHBfbXN0 X2hlbHBlci5oIGIvaW5jbHVkZS9kcm0vZHJtX2RwX21zdF9oZWxwZXIuaAo+IGluZGV4IDA0ZTY2 OGEuLjQ3ODY5MTkgMTAwNjQ0Cj4gLS0tIGEvaW5jbHVkZS9kcm0vZHJtX2RwX21zdF9oZWxwZXIu aAo+ICsrKyBiL2luY2x1ZGUvZHJtL2RybV9kcF9tc3RfaGVscGVyLmgKPiBAQCAtNDY0LDYgKzQ2 NCwxMCBAQCBzdHJ1Y3QgZHJtX2RwX21zdF90b3BvbG9neV9tZ3Igewo+ICAJc3RydWN0IHdvcmtf c3RydWN0IHdvcms7Cj4gIAo+ICAJc3RydWN0IHdvcmtfc3RydWN0IHR4X3dvcms7Cj4gKwo+ICsJ c3RydWN0IGxpc3RfaGVhZCBkZXN0cm95X2Nvbm5lY3Rvcl9saXN0Owo+ICsJc3RydWN0IG11dGV4 IGRlc3Ryb3lfY29ubmVjdG9yX2xvY2s7Cj4gKwlzdHJ1Y3Qgd29ya19zdHJ1Y3QgZGVzdHJveV9j b25uZWN0b3Jfd29yazsKPiAgfTsKPiAgCj4gIGludCBkcm1fZHBfbXN0X3RvcG9sb2d5X21ncl9p bml0KHN0cnVjdCBkcm1fZHBfbXN0X3RvcG9sb2d5X21nciAqbWdyLCBzdHJ1Y3QgZGV2aWNlICpk ZXYsIHN0cnVjdCBkcm1fZHBfYXV4ICphdXgsIGludCBtYXhfZHBjZF90cmFuc2FjdGlvbl9ieXRl cywgaW50IG1heF9wYXlsb2FkcywgaW50IGNvbm5fYmFzZV9pZCk7Cj4gLS0gCj4gMi40LjEKPgo+ IF9fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fCj4gZHJpLWRl dmVsIG1haWxpbmcgbGlzdAo+IGRyaS1kZXZlbEBsaXN0cy5mcmVlZGVza3RvcC5vcmcKPiBodHRw Oi8vbGlzdHMuZnJlZWRlc2t0b3Aub3JnL21haWxtYW4vbGlzdGluZm8vZHJpLWRldmVsCgotLSAK SmFuaSBOaWt1bGEsIEludGVsIE9wZW4gU291cmNlIFRlY2hub2xvZ3kgQ2VudGVyCl9fX19fX19f X19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fCmRyaS1kZXZlbCBtYWlsaW5n IGxpc3QKZHJpLWRldmVsQGxpc3RzLmZyZWVkZXNrdG9wLm9yZwpodHRwOi8vbGlzdHMuZnJlZWRl c2t0b3Aub3JnL21haWxtYW4vbGlzdGluZm8vZHJpLWRldmVsCg==