From mboxrd@z Thu Jan 1 00:00:00 1970 Return-path: Received: from mail2.candelatech.com ([208.74.158.173]) by bombadil.infradead.org with esmtp (Exim 4.89 #1 (Red Hat Linux)) id 1er66S-0004w5-Hm for ath10k@lists.infradead.org; Wed, 28 Feb 2018 18:05:22 +0000 Subject: Re: [RFC] ath10k: Attempt to work around napi_synchronize hang. References: <1519780965-15292-1-git-send-email-greearb@candelatech.com> From: Ben Greear Message-ID: <95ddec98-2613-7e6d-3ec8-d47d1aa527db@candelatech.com> Date: Wed, 28 Feb 2018 10:05:04 -0800 MIME-Version: 1.0 In-Reply-To: List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Content-Transfer-Encoding: base64 Content-Type: text/plain; charset="utf-8"; Format="flowed" Sender: "ath10k" Errors-To: ath10k-bounces+kvalo=adurom.com@lists.infradead.org To: =?UTF-8?Q?Micha=c5=82_Kazior?= Cc: linux-wireless@vger.kernel.org, ath10k@lists.infradead.org T24gMDIvMjgvMjAxOCAwOTozMSBBTSwgTWljaGHFgiBLYXppb3Igd3JvdGU6Cj4gT24gMjggRmVi cnVhcnkgMjAxOCBhdCAwMjoyMiwgIDxncmVlYXJiQGNhbmRlbGF0ZWNoLmNvbT4gd3JvdGU6Cj4g Wy4uLl0KPj4gQEAgLTIwODYsOCArMjA4NywyOCBAQCBzdGF0aWMgdm9pZCBhdGgxMGtfcGNpX2hp Zl9zdG9wKHN0cnVjdCBhdGgxMGsgKmFyKQo+PiAgICAgICAgIGF0aDEwa19wY2lfaXJxX2Rpc2Fi bGUoYXIpOwo+PiAgICAgICAgIGF0aDEwa19wY2lfaXJxX3N5bmMoYXIpOwo+PiAgICAgICAgIGF0 aDEwa19wY2lfZmx1c2goYXIpOwo+PiAtICAgICAgIG5hcGlfc3luY2hyb25pemUoJmFyLT5uYXBp KTsKPj4gLSAgICAgICBuYXBpX2Rpc2FibGUoJmFyLT5uYXBpKTsKPj4gKwo+PiArICAgICAgIC8q IENhbGxpbmcgbmFwaV9kaXNhYmxlIHR3aWNlIGluIGEgcm93ICh3L291dCBzdGFydGluZyBpdCBh bmQvb3Igd2l0aG91dAo+PiArICAgICAgICAqIGhhdmluZyBOQVBJIGFjdGl2ZSBsZWFkcyB0byBk ZWFkbG9jayBiZWNhdXNlIG5hcGlfZGlzYWJsZSBzZXRzCj4+ICsgICAgICAgICogTkFQSV9TVEFU RV9TQ0hFRCBhbmQgTkFQSV9TVEFURV9OUFNWQyB3aGVuIGl0IHJldHVybnMsIGFzIGZhciBhcyBJ Cj4+ICsgICAgICAgICogY2FuIHRlbGwuICBTbywgZ3VhcmQgdGhpcyBjYWxsIHRvIG5hcGlfZGlz YWJsZS4gIEkgYmVsaWV2ZSB0aGUKPj4gKyAgICAgICAgKiBmYWlsdXJlIGNhc2UgaXMgc29tZXRo aW5nIGxpa2UgdGhpczoKPj4gKyAgICAgICAgKiBybW1vZCBhdGgxMGtfcGNpIGF0aDEwa19jb3Jl Cj4+ICsgICAgICAgICogICBGaXJtd2FyZSBjcmFzaGVzIGJlZm9yZSBoaWZfc3RvcCBpcyBjYWxs ZWQgYnkgdGhlIHJtbW9kIHBhdGgKPj4gKyAgICAgICAgKiAgIFRoZSBjcmFzaCBoYW5kbGluZyBs b2dpYyBjYWxscyBoaWZfc3RvcAo+PiArICAgICAgICAgKiAgIFRoZW4gcm1tb2QgZ2V0cyBhcm91 bmQgdG8gY2FsbGluZyBoaWZfc3RvcCwgYnV0IHNwaW5zIGVuZGxlc3NseQo+PiArICAgICAgICAq ICAgaW4gbmFwaV9zeW5jaHJvbml6ZS4KPj4gKyAgICAgICAgKgo+PiArICAgICAgICAqICBJIHRo aW5rIG9uZSB3YXkgdGhpcyBjb3VsZCBoYXBwZW4gaXMgdGhhdCBhdGgxMGtfc3RvcCBjaGVja3MK Pj4gKyAgICAgICAgKiAgZm9yIHN0YXRlICE9IEFUSDEwS19TVEFURV9PRkYsIGJ1dCBTVEFURV9S RVNUQVJUSU5HIGlzIGFsc28KPj4gKyAgICAgICAgKiAgYSBwb3NzaWJpbGl0eS4gIFRoYXQgbWln aHQgYmUgaG93IHdlIGNhbiBoYXZlIGhpZl9zdG9wIGNhbGxlZCB0d2ljZQo+PiArICAgICAgICAq ICB3aXRob3V0IGEgaGlmX3N0YXJ0IGluIGJldHdlZW4uIC0tQmVuCj4+ICsgICAgICAgICovCj4+ ICsgICAgICAgaWYgKGFyLT5uYXBpX2VuYWJsZWQpIHsKPj4gKyAgICAgICAgICAgICAgIG5hcGlf c3luY2hyb25pemUoJmFyLT5uYXBpKTsKPj4gKyAgICAgICAgICAgICAgIG5hcGlfZGlzYWJsZSgm YXItPm5hcGkpOwo+PiArICAgICAgICAgICAgICAgYXItPm5hcGlfZW5hYmxlZCA9IGZhbHNlOwo+ PiArICAgICAgIH0KPgo+IExvb2tpbmcgYXQgdGhlIGNvZGUgYW5kIHlvdXIgY29tbWVudCB0aGUg ZGVzY3JpYmVkIGZhaWwgY2FzZSBzZWVtcwo+IGxlZ2l0LiBJIHdvdWxkIGNvbnNpZGVyIHR1bmlu ZyBhdGgxMGtfc3RvcCgpIHNvIHRoYXQgaXQgY2FsbHMKPiBhdGgxMGtfaGFsdCgpIG9ubHkgaWYg YXItPnN0YXRlICE9IE9GRiAmIGFyLT5zdGF0ZSAhPSBSRVNUQVJUSU5HCj4gdGhvdWdoLiBPciBk aWQgeW91IHRyeSBhbHJlYWR5PwoKSSBkaWQgbm90IHRyeSB0dW5pbmcgYXRoMTBrX3N0b3AoKS4g IFRoZSBjb2RlIGluIHRoaXMgYXJlYSBpcyBxdWl0ZSBjb21wbGV4LAphbmQgaW4gbXkgb3Bpbmlv biB0cnlpbmcgdG8ga2VlcCB0aGUgc3RhcnQvc3RvcCBjYWxscyBleGFjdGx5IG1hdGNoZWQgd2l0 aG91dAppbmRpdmlkdWFsICdoYXNfc3RhcnRlZCcgZmxhZ3Mgc2VlbXMgcmlwZSBmb3IgYnVncy4K Cj4gV2hpbGUgeW91ciBhcHByb2FjaCB3aWxsIHByb2JhYmx5IHdvcmsgaXQgd29uJ3QgcHJldmVu dCBvdGhlciBub24tTkFQSQo+IGJhZCB0aGluZ3MgZnJvbSBoYXBwZW5pbmcuIEV2ZW4gaWYgdGhl cmUncyBub3RoaW5nIHRvZGF5IGl0IG1pZ2h0Cj4gY3JlZXAgdXAgaW4gdGhlIGZ1dHVyZS4gQW5k IHlvdSdkIG5lZWQgdG8gdXBkYXRlIGFoYi5jIHRvby4KCkknbGwgdXBkYXRlIGFoYi5jIHRvIG1h dGNoLgoKVGhhbmtzLApCZW4KCj4KPgo+IE1pY2hhxYIKPgoKCi0tIApCZW4gR3JlZWFyIDxncmVl YXJiQGNhbmRlbGF0ZWNoLmNvbT4KQ2FuZGVsYSBUZWNobm9sb2dpZXMgSW5jICBodHRwOi8vd3d3 LmNhbmRlbGF0ZWNoLmNvbQoKCl9fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19f X19fX19fX19fCmF0aDEwayBtYWlsaW5nIGxpc3QKYXRoMTBrQGxpc3RzLmluZnJhZGVhZC5vcmcK aHR0cDovL2xpc3RzLmluZnJhZGVhZC5vcmcvbWFpbG1hbi9saXN0aW5mby9hdGgxMGsK