From mboxrd@z Thu Jan 1 00:00:00 1970 From: "Gao Feng" Date: Tue, 08 Aug 2017 14:21:58 +0000 Subject: Re:Re: [PATCH net] ppp: fix xmit recursion detection on ppp channels Message-Id: <22bd4c3b.1578c.15dc2394057.Coremail.gfree.wind@vip.163.com> List-Id: References: <5a62fd3f.e0c3.15dc1fd5f1b.Coremail.gfree.wind@vip.163.com> <20170808135827.oszy6ikqi2gw5cs7@alphalink.fr> In-Reply-To: <20170808135827.oszy6ikqi2gw5cs7@alphalink.fr> MIME-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit To: Guillaume Nault Cc: netdev@vger.kernel.org, Liu Jianying , David Miller , linux-ppp@vger.kernel.org, Paul Mackerras CkF0IDIwMTctMDgtMDggMjE6NTg6MjcsICJHdWlsbGF1bWUgTmF1bHQiIDxnLm5hdWx0QGFscGhh bGluay5mcj4gd3JvdGU6Cj5PbiBUdWUsIEF1ZyAwOCwgMjAxNyBhdCAwOToxNjozM1BNICswODAw LCBHYW8gRmVuZyB3cm90ZToKPj4gQXQgMjAxNy0wOC0wOCAxNzo0MzoyNCwgIkd1aWxsYXVtZSBO YXVsdCIgPGcubmF1bHRAYWxwaGFsaW5rLmZyPiB3cm90ZToKPj4gPi0tLSBhL2RyaXZlcnMvbmV0 L3BwcC9wcHBfZ2VuZXJpYy5jCj4+ID4rKysgYi9kcml2ZXJzL25ldC9wcHAvcHBwX2dlbmVyaWMu Ywo+PiA+QEAgLTE5MTUsMjEgKzE5MTUsMjMgQEAgc3RhdGljIHZvaWQgX19wcHBfY2hhbm5lbF9w dXNoKHN0cnVjdCBjaGFubmVsICpwY2gpCj4+ID4gCXNwaW5fdW5sb2NrKCZwY2gtPmRvd25sKTsK Pj4gPiAJLyogc2VlIGlmIHRoZXJlIGlzIGFueXRoaW5nIGZyb20gdGhlIGF0dGFjaGVkIHVuaXQg dG8gYmUgc2VudCAqLwo+PiA+IAlpZiAoc2tiX3F1ZXVlX2VtcHR5KCZwY2gtPmZpbGUueHEpKSB7 Cj4+ID4tCQlyZWFkX2xvY2soJnBjaC0+dXBsKTsKPj4gPiAJCXBwcCA9IHBjaC0+cHBwOwo+PiA+ IAkJaWYgKHBwcCkKPj4gPi0JCQlwcHBfeG1pdF9wcm9jZXNzKHBwcCk7Cj4+ID4tCQlyZWFkX3Vu bG9jaygmcGNoLT51cGwpOwo+PiA+KwkJCV9fcHBwX3htaXRfcHJvY2VzcyhwcHApOwo+PiA+IAl9 Cj4+ID4gfQo+PiA+IAo+PiA+IHN0YXRpYyB2b2lkIHBwcF9jaGFubmVsX3B1c2goc3RydWN0IGNo YW5uZWwgKnBjaCkKPj4gPiB7Cj4+ID4tCWxvY2FsX2JoX2Rpc2FibGUoKTsKPj4gPi0KPj4gPi0J X19wcHBfY2hhbm5lbF9wdXNoKHBjaCk7Cj4+ID4tCj4+ID4tCWxvY2FsX2JoX2VuYWJsZSgpOwo+ PiA+KwlyZWFkX2xvY2tfYmgoJnBjaC0+dXBsKTsKPj4gPisJaWYgKHBjaC0+cHBwKSB7Cj4+ID4r CQkoKnRoaXNfY3B1X3B0cihwY2gtPnBwcC0+eG1pdF9yZWN1cnNpb24pKSsrOwo+PiA+KwkJX19w cHBfY2hhbm5lbF9wdXNoKHBjaCk7Cj4+ID4rCQkoKnRoaXNfY3B1X3B0cihwY2gtPnBwcC0+eG1p dF9yZWN1cnNpb24pKS0tOwo+PiA+Kwl9IGVsc2Ugewo+PiA+KwkJX19wcHBfY2hhbm5lbF9wdXNo KHBjaCk7Cj4+ID4rCX0KPj4gPisJcmVhZF91bmxvY2tfYmgoJnBjaC0+dXBsKTsKPj4gCj4+IElm IGludm9rZWQgcmVhZF9sb2NrX2JoIGluIHBwcF9jaGFubmVsX3B1c2gsIGl0IHdvdWxkIGJlIHVu bmVjZXNzYXJ5IHRvIGludm9rZSByZWFkX2xvY2soJnBjaC0+dXBsKQo+PiBpbiB0aGUgX19wcHBf Y2hhbm5lbF9wdXNoLgo+PiAKPkJ1dCB0aGlzIHBhdGNoIGRvZXMgcmVtb3ZlIHJlYWRfbG9jaygm cGNoLT51cGwpIGZyb20KPl9fcHBwX2NoYW5uZWxfcHVzaCgpLiBPciBoYXZlIEkgbWlzdW5kZXJz dG9vZCB5b3VyIHBvaW50PwoKU29ycnksIGl0J3MgbXkgZmF1bHQuCkkgZm9yZ290IHlvdXIgZm9y bWVyIGNoYW5nZXMgd2hlbiB0aGluayBhYm91dCB0aGUgdXBkYXRlcyBpbiBwcHBfY2hhbm5lbF9w dXNoCgpCZXN0IFJlZ2FyZHMKRmVuZwoK