From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from m16.mail.163.com (m16.mail.163.com [220.197.31.5]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id BD27526560D; Wed, 7 Jan 2026 07:22:42 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=220.197.31.5 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1767770567; cv=none; b=gHjUpNwyAJaymoIrO1xR7fVz9uh7vZEbLc7D3RHVPS0z818KV2bZgHf0wVKo7GKXZxYYbZniA/Aw5M9znSem+duW9bndsb+DJQMt4TmTflCTeaglw/hQ0h4SELOn2VShKO2ZbzdWSSGPd5C1+KEBtBYVt1B1JmG/komBziwxew8= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1767770567; c=relaxed/simple; bh=bfibTL1ji1QmvEFkfxm914aa635piGfHWOJFwEjtWWo=; h=Date:From:To:Cc:Subject:In-Reply-To:References:Content-Type: MIME-Version:Message-ID; b=a6+/kijPbFpoAz8/RoNHHUQ1nspHdSXEWe17st055OViMh9b7h6T7b/HtAis8SrZwpCYI1tOe1LGgAKnyDnUtiPH9ATW0uZih2aGOHYgbitDUw+sVR60ZxHLpp4aZ816DZ7q1C4LDIqCloKnrJtphwbhQlkQsX6+T6wOMq50qpE= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=163.com; spf=pass smtp.mailfrom=163.com; dkim=pass (1024-bit key) header.d=163.com header.i=@163.com header.b=ROroWRh/; arc=none smtp.client-ip=220.197.31.5 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=163.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=163.com Authentication-Results: smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=163.com header.i=@163.com header.b="ROroWRh/" DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=163.com; s=s110527; h=Date:From:To:Subject:Content-Type:MIME-Version: Message-ID; bh=bfibTL1ji1QmvEFkfxm914aa635piGfHWOJFwEjtWWo=; b=R OroWRh/p1KiCUmvUHi5GDByDgXGk0lKvoHG306YhYCJjShF/hqDrEiSt8l2SEIyY 8HKBBgU70whZAxrzgDs9NOlStkJKwEmMhdYr8VL78VMlTmprT6RiqccuKfrVQxTi RVloURTMEgtKka2qB5DGf+ltK6/HM/a2QjUB/zzoCM= Received: from slark_xiao$163.com ( [2408:8459:3860:79dc:e48d:3bf1:6788:3ccb] ) by ajax-webmail-wmsvr-40-127 (Coremail) ; Wed, 7 Jan 2026 15:21:36 +0800 (CST) Date: Wed, 7 Jan 2026 15:21:36 +0800 (CST) From: "Slark Xiao" To: "Sai Krishna Gajula" Cc: "loic.poulain@oss.qualcomm.com" , "ryazanov.s.a@gmail.com" , "johannes@sipsolutions.net" , "andrew+netdev@lunn.ch" , "davem@davemloft.net" , "edumazet@google.com" , "kuba@kernel.org" , "pabeni@redhat.com" , "mani@kernel.org" , "netdev@vger.kernel.org" , "linux-kernel@vger.kernel.org" Subject: Re:RE: [net-next v4 2/8] net: wwan: core: split port creation and registration X-Priority: 3 X-Mailer: Coremail Webmail Server Version 2023.4-cmXT build 20250723(a044bf12) Copyright (c) 2002-2026 www.mailtech.cn 163com In-Reply-To: References: <20260105102018.62731-1-slark_xiao@163.com> <20260105102018.62731-3-slark_xiao@163.com> X-NTES-SC: AL_Qu2dBfucv0wi4CKYbOkfmk8Sg+84W8K3v/0v1YVQOpF8jA/p8D8rXnZKEETb8uSdCjyerB63dQJQxMhbR6tAWYkJN/tAhSi1vA9F6tRMsVCUvg== Content-Transfer-Encoding: base64 Content-Type: text/plain; charset=UTF-8 Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Message-ID: <65a926ef.5e4a.19b97551cdb.Coremail.slark_xiao@163.com> X-Coremail-Locale: zh_CN X-CM-TRANSID:fygvCgCHxLeACV5pnN5RAA--.17344W X-CM-SenderInfo: xvod2y5b0lt0i6rwjhhfrp/xtbCvwBUuGleCYAluQAA3x X-Coremail-Antispam: 1U5529EdanIXcx71UUUUU7vcSsGvfC2KfnxnUU== CgpBdCAyMDI2LTAxLTA3IDAwOjQ5OjUwLCAiU2FpIEtyaXNobmEgR2FqdWxhIiA8c2Fpa3Jpc2hu YWdAbWFydmVsbC5jb20+IHdyb3RlOgo+Cj4+IC0tLS0tT3JpZ2luYWwgTWVzc2FnZS0tLS0tCj4+ IEZyb206IFNsYXJrIFhpYW8gPHNsYXJrX3hpYW9AMTYzLmNvbT4KPj4gU2VudDogTW9uZGF5LCBK YW51YXJ5IDUsIDIwMjYgMzo1MCBQTQo+PiBUbzogbG9pYy5wb3VsYWluQG9zcy5xdWFsY29tbS5j b207IHJ5YXphbm92LnMuYUBnbWFpbC5jb207Cj4+IGpvaGFubmVzQHNpcHNvbHV0aW9ucy5uZXQ7 IGFuZHJldytuZXRkZXZAbHVubi5jaDsKPj4gZGF2ZW1AZGF2ZW1sb2Z0Lm5ldDsgZWR1bWF6ZXRA Z29vZ2xlLmNvbTsga3ViYUBrZXJuZWwub3JnOwo+PiBwYWJlbmlAcmVkaGF0LmNvbTsgbWFuaUBr ZXJuZWwub3JnCj4+IENjOiBuZXRkZXZAdmdlci5rZXJuZWwub3JnOyBsaW51eC1rZXJuZWxAdmdl ci5rZXJuZWwub3JnCj4+IFN1YmplY3Q6IFtuZXQtbmV4dCB2NCAyLzhdIG5ldDogd3dhbjogY29y ZTogc3BsaXQgcG9ydCBjcmVhdGlvbiBhbmQKPj4gcmVnaXN0cmF0aW9uCj4+IAo+PiBGcm9tOiBT ZXJnZXkgUnlhemFub3YgPHJ5YXphbm92LuKAinMu4oCKYUDigIpnbWFpbC7igIpjb20+IFVwY29t aW5nIEdOU1MgKE5NRUEpCj4+IHBvcnQgdHlwZSBzdXBwb3J0IHJlcXVpcmVzIGV4cG9ydGluZyBp dCB2aWEgdGhlIEdOU1Mgc3Vic3lzdGVtLiBPbiBhbm90aGVyCj4+IGhhbmQsIHdlIHN0aWxsIG5l ZWQgdG8gZG8gYmFzaWMgV1dBTiBjb3JlIHdvcms6IGZpbmQgb3IgYWxsb2NhdGUgdGhlIFdXQU4K Pj4gZGV2aWNlLCBtYWtlIGl0IHRoZSAKPj4gRnJvbTogU2VyZ2V5IFJ5YXphbm92IDxyeWF6YW5v di5zLmFAZ21haWwuY29tPgo+PiAKPj4gVXBjb21pbmcgR05TUyAoTk1FQSkgcG9ydCB0eXBlIHN1 cHBvcnQgcmVxdWlyZXMgZXhwb3J0aW5nIGl0IHZpYSB0aGUgR05TUwo+PiBzdWJzeXN0ZW0uIE9u IGFub3RoZXIgaGFuZCwgd2Ugc3RpbGwgbmVlZCB0byBkbyBiYXNpYyBXV0FOIGNvcmUKPj4gd29y azogZmluZCBvciBhbGxvY2F0ZSB0aGUgV1dBTiBkZXZpY2UsIG1ha2UgaXQgdGhlIHBvcnQgcGFy ZW50LCBldGMuIFRvIHJldXNlCj4+IGFzIG11Y2ggY29kZSBhcyBwb3NzaWJsZSwgc3BsaXQgdGhl IHBvcnQgY3JlYXRpb24gZnVuY3Rpb24gaW50byB0aGUgcmVnaXN0cmF0aW9uCj4+IG9mIGEgcmVn dWxhciBXV0FOIHBvcnQgZGV2aWNlLCBhbmQgYmFzaWMgcG9ydCBzdHJ1Y3QgaW5pdGlhbGl6YXRp b24uCj4+IAo+PiBUbyBiZSBhYmxlIHRvIHVzZSBwdXRfZGV2aWNlKCkgdW5pZm9ybWx5LCBicmVh ayB0aGUgZGV2aWNlX3JlZ2lzdGVyKCkgY2FsbCBpbnRvCj4+IGRldmljZV9pbml0aWFsaXplKCkg YW5kIGRldmljZV9hZGQoKSBhbmQgY2FsbCBkZXZpY2UgaW5pdGlhbGl6YXRpb24gZWFybGllci4K Pj4gCj4+IFNpZ25lZC1vZmYtYnk6IFNlcmdleSBSeWF6YW5vdiA8cnlhemFub3Yucy5hQGdtYWls LmNvbT4KPj4gLS0tCj4+ICBkcml2ZXJzL25ldC93d2FuL3d3YW5fY29yZS5jIHwgNjYgKysrKysr KysrKysrKysrKysrKysrKy0tLS0tLS0tLS0tLS0tCj4+ICAxIGZpbGUgY2hhbmdlZCwgNDAgaW5z ZXJ0aW9ucygrKSwgMjYgZGVsZXRpb25zKC0pCj4+IAo+PiBkaWZmIC0tZ2l0IGEvZHJpdmVycy9u ZXQvd3dhbi93d2FuX2NvcmUuYyBiL2RyaXZlcnMvbmV0L3d3YW4vd3dhbl9jb3JlLmMKPj4gaW5k ZXggYWRlOGJiZmZjOTNlLi5lZGVlNWZmNDhmMjggMTAwNjQ0Cj4+IC0tLSBhL2RyaXZlcnMvbmV0 L3d3YW4vd3dhbl9jb3JlLmMKPj4gKysrIGIvZHJpdmVycy9uZXQvd3dhbi93d2FuX2NvcmUuYwo+ PiBAQCAtMzYxLDcgKzM2MSw4IEBAIHN0YXRpYyB2b2lkIHd3YW5fcG9ydF9kZXN0cm95KHN0cnVj dCBkZXZpY2UgKmRldikgIHsKPj4gIAlzdHJ1Y3Qgd3dhbl9wb3J0ICpwb3J0ID0gdG9fd3dhbl9w b3J0KGRldik7Cj4+IAo+PiAtCWlkYV9mcmVlKCZtaW5vcnMsIE1JTk9SKHBvcnQtPmRldi5kZXZ0 KSk7Cj4+ICsJaWYgKGRldi0+Y2xhc3MgPT0gJnd3YW5fY2xhc3MpCj4+ICsJCWlkYV9mcmVlKCZt aW5vcnMsIE1JTk9SKGRldi0+ZGV2dCkpOwo+PiAgCW11dGV4X2Rlc3Ryb3koJnBvcnQtPmRhdGFf bG9jayk7Cj4+ICAJbXV0ZXhfZGVzdHJveSgmcG9ydC0+b3BzX2xvY2spOwo+PiAgCWtmcmVlKHBv cnQpOwo+PiBAQCAtNDQwLDYgKzQ0MSw0MSBAQCBzdGF0aWMgaW50IF9fd3dhbl9wb3J0X2Rldl9h c3NpZ25fbmFtZShzdHJ1Y3QKPj4gd3dhbl9wb3J0ICpwb3J0LCBjb25zdCBjaGFyICpmbXQpCj4+ ICAJcmV0dXJuIGRldl9zZXRfbmFtZSgmcG9ydC0+ZGV2LCAiJXMiLCBidWYpOyAgfQo+PiAKPj4g Ky8qIFJlZ2lzdGVyIGEgcmVndWxhciBXV0FOIHBvcnQgZGV2aWNlIChlLmcuIEFULCBNQklNLCBl dGMuKSAqLyBzdGF0aWMKPj4gK2ludCB3d2FuX3BvcnRfcmVnaXN0ZXJfd3dhbihzdHJ1Y3Qgd3dh bl9wb3J0ICpwb3J0KSB7Cj4KPkFzIHBlciBrZXJuZWwgc3R5bGUsIGJyYWNlcyBuZWVkIHRvIGJl IG9uIG5leHQgbGluZSAKPmludCB3d2FuX3BvcnRfcmVnaXN0ZXJfd3dhbihzdHJ1Y3Qgd3dhbl9w b3J0ICpwb3J0KSAKPnsKPi4uLgo+fQo+Cj4+ICsJc3RydWN0IHd3YW5fZGV2aWNlICp3d2FuZGV2 ID0gdG9fd3dhbl9kZXYocG9ydC0+ZGV2LnBhcmVudCk7Cj4+ICsJY2hhciBuYW1lZm10WzB4MjBd Owo+PiArCWludCBtaW5vciwgZXJyOwo+PiArCj4+ICsJLyogQSBwb3J0IGlzIGV4cG9zZWQgYXMg Y2hhcmFjdGVyIGRldmljZSwgZ2V0IGEgbWlub3IgKi8KPj4gKwltaW5vciA9IGlkYV9hbGxvY19y YW5nZSgmbWlub3JzLCAwLCBXV0FOX01BWF9NSU5PUlMgLSAxLAo+PiBHRlBfS0VSTkVMKTsKPj4g KwlpZiAobWlub3IgPCAwKQo+PiArCQlyZXR1cm4gbWlub3I7Cj4+ICsKPj4gKwlwb3J0LT5kZXYu Y2xhc3MgPSAmd3dhbl9jbGFzczsKPj4gKwlwb3J0LT5kZXYuZGV2dCA9IE1LREVWKHd3YW5fbWFq b3IsIG1pbm9yKTsKPj4gKwo+PiArCS8qIGFsbG9jYXRlIHVuaXF1ZSBuYW1lIGJhc2VkIG9uIHd3 YW4gZGV2aWNlIGlkLCBwb3J0IHR5cGUgYW5kCj4+IG51bWJlciAqLwo+PiArCXNucHJpbnRmKG5h bWVmbXQsIHNpemVvZihuYW1lZm10KSwgInd3YW4ldSVzJSVkIiwgd3dhbmRldi0KPj4gPmlkLAo+ PiArCQkgd3dhbl9wb3J0X3R5cGVzW3BvcnQtPnR5cGVdLmRldnN1Zik7Cj4+ICsKPj4gKwkvKiBT ZXJpYWxpemUgcG9ydHMgcmVnaXN0cmF0aW9uICovCj4+ICsJbXV0ZXhfbG9jaygmd3dhbl9yZWdp c3Rlcl9sb2NrKTsKPj4gKwo+PiArCV9fd3dhbl9wb3J0X2Rldl9hc3NpZ25fbmFtZShwb3J0LCBu YW1lZm10KTsKPj4gKwllcnIgPSBkZXZpY2VfYWRkKCZwb3J0LT5kZXYpOwo+PiArCj4+ICsJbXV0 ZXhfdW5sb2NrKCZ3d2FuX3JlZ2lzdGVyX2xvY2spOwo+PiArCj4+ICsJaWYgKGVycikKPj4gKwkJ cmV0dXJuIGVycjsKPlBsZWFzZSBjaGVjaywgaWYgZnJlZWluZyB3aXRoIGlkYV9mcmVlIGlzIHJl cXVpcmVkIGJlZm9yZSByZXR1cm5pbmcgZXJyLgo+aWYgKGVycikgewo+ICAgIGlkYV9mcmVlKCZt aW5vcnMsIG1pbm9yKTsKPiAgICByZXR1cm4gZXJyOwo+fQpZZXMsIHlvdSBhcmUgcmlnaHQuCkFu ZCBwYXRjaCA3LzggbW9kaWZpZXMgdGhpcyBmaWxlIGFzIHdlbGwuIFdlIG5lZWQgdG8gYWxpZ24g d2l0aCB0aGF0IGNoYW5nZXMKc2luY2UgdGhlcmUgYXJlIHNvbWUgaXNzdWVzKHdlIHN0aWxsIGFs bG9jYXRlcyB0aGUgbWlub3IgZXZlbiB0aGUgY2RldiBpcwpmYWxzZSkuIFRoaXMgd291bGQgbGVh ZCB0byB0aGUgcmVsZWFzZSBmdW5jdGlvbiBjYW4ndCByZWxlYXNlIHRoZSBjb3JyZWN0CmRldnQu Cj4+ICsKPj4gKwlkZXZfaW5mbygmd3dhbmRldi0+ZGV2LCAicG9ydCAlcyBhdHRhY2hlZFxuIiwg ZGV2X25hbWUoJnBvcnQtCj4+ID5kZXYpKTsKPj4gKwo+PiArCXJldHVybiAwOwo+PiArfQo+PiAr Cj4+ICBzdHJ1Y3Qgd3dhbl9wb3J0ICp3d2FuX2NyZWF0ZV9wb3J0KHN0cnVjdCBkZXZpY2UgKnBh cmVudCwKPj4gIAkJCQkgICBlbnVtIHd3YW5fcG9ydF90eXBlIHR5cGUsCj4+ICAJCQkJICAgY29u c3Qgc3RydWN0IHd3YW5fcG9ydF9vcHMgKm9wcywgQEAgLQo+PiA0NDgsOCArNDg0LDcgQEAgc3Ry dWN0IHd3YW5fcG9ydCAqd3dhbl9jcmVhdGVfcG9ydChzdHJ1Y3QgZGV2aWNlCj4+ICpwYXJlbnQs ICB7Cj4+ICAJc3RydWN0IHd3YW5fZGV2aWNlICp3d2FuZGV2Owo+PiAgCXN0cnVjdCB3d2FuX3Bv cnQgKnBvcnQ7Cj4+IC0JY2hhciBuYW1lZm10WzB4MjBdOwo+PiAtCWludCBtaW5vciwgZXJyOwo+ PiArCWludCBlcnI7Cj4+IAo+PiAgCWlmICh0eXBlID4gV1dBTl9QT1JUX01BWCB8fCAhb3BzKQo+ PiAgCQlyZXR1cm4gRVJSX1BUUigtRUlOVkFMKTsKPj4gQEAgLTQ2MSwxNyArNDk2LDkgQEAgc3Ry dWN0IHd3YW5fcG9ydCAqd3dhbl9jcmVhdGVfcG9ydChzdHJ1Y3QgZGV2aWNlCj4+ICpwYXJlbnQs Cj4+ICAJaWYgKElTX0VSUih3d2FuZGV2KSkKPj4gIAkJcmV0dXJuIEVSUl9DQVNUKHd3YW5kZXYp Owo+PiAKPj4gLQkvKiBBIHBvcnQgaXMgZXhwb3NlZCBhcyBjaGFyYWN0ZXIgZGV2aWNlLCBnZXQg YSBtaW5vciAqLwo+PiAtCW1pbm9yID0gaWRhX2FsbG9jX3JhbmdlKCZtaW5vcnMsIDAsIFdXQU5f TUFYX01JTk9SUyAtIDEsCj4+IEdGUF9LRVJORUwpOwo+PiAtCWlmIChtaW5vciA8IDApIHsKPj4g LQkJZXJyID0gbWlub3I7Cj4+IC0JCWdvdG8gZXJyb3Jfd3dhbmRldl9yZW1vdmU7Cj4+IC0JfQo+ PiAtCj4+ICAJcG9ydCA9IGt6YWxsb2Moc2l6ZW9mKCpwb3J0KSwgR0ZQX0tFUk5FTCk7Cj4+ICAJ aWYgKCFwb3J0KSB7Cj4+ICAJCWVyciA9IC1FTk9NRU07Cj4+IC0JCWlkYV9mcmVlKCZtaW5vcnMs IG1pbm9yKTsKPj4gIAkJZ290byBlcnJvcl93d2FuZGV2X3JlbW92ZTsKPj4gIAl9Cj4+IAo+PiBA QCAtNDg1LDI3ICs1MTIsMTQgQEAgc3RydWN0IHd3YW5fcG9ydCAqd3dhbl9jcmVhdGVfcG9ydChz dHJ1Y3QgZGV2aWNlCj4+ICpwYXJlbnQsCj4+ICAJbXV0ZXhfaW5pdCgmcG9ydC0+ZGF0YV9sb2Nr KTsKPj4gCj4+ICAJcG9ydC0+ZGV2LnBhcmVudCA9ICZ3d2FuZGV2LT5kZXY7Cj4+IC0JcG9ydC0+ ZGV2LmNsYXNzID0gJnd3YW5fY2xhc3M7Cj4+ICAJcG9ydC0+ZGV2LnR5cGUgPSAmd3dhbl9wb3J0 X2Rldl90eXBlOwo+PiAtCXBvcnQtPmRldi5kZXZ0ID0gTUtERVYod3dhbl9tYWpvciwgbWlub3Ip Owo+PiAgCWRldl9zZXRfZHJ2ZGF0YSgmcG9ydC0+ZGV2LCBkcnZkYXRhKTsKPj4gKwlkZXZpY2Vf aW5pdGlhbGl6ZSgmcG9ydC0+ZGV2KTsKPj4gCj4+IC0JLyogYWxsb2NhdGUgdW5pcXVlIG5hbWUg YmFzZWQgb24gd3dhbiBkZXZpY2UgaWQsIHBvcnQgdHlwZSBhbmQKPj4gbnVtYmVyICovCj4+IC0J c25wcmludGYobmFtZWZtdCwgc2l6ZW9mKG5hbWVmbXQpLCAid3dhbiV1JXMlJWQiLCB3d2FuZGV2 LQo+PiA+aWQsCj4+IC0JCSB3d2FuX3BvcnRfdHlwZXNbcG9ydC0+dHlwZV0uZGV2c3VmKTsKPj4g LQo+PiAtCS8qIFNlcmlhbGl6ZSBwb3J0cyByZWdpc3RyYXRpb24gKi8KPj4gLQltdXRleF9sb2Nr KCZ3d2FuX3JlZ2lzdGVyX2xvY2spOwo+PiAtCj4+IC0JX193d2FuX3BvcnRfZGV2X2Fzc2lnbl9u YW1lKHBvcnQsIG5hbWVmbXQpOwo+PiAtCWVyciA9IGRldmljZV9yZWdpc3RlcigmcG9ydC0+ZGV2 KTsKPj4gLQo+PiAtCW11dGV4X3VubG9jaygmd3dhbl9yZWdpc3Rlcl9sb2NrKTsKPj4gLQo+PiAr CWVyciA9IHd3YW5fcG9ydF9yZWdpc3Rlcl93d2FuKHBvcnQpOwo+PiAgCWlmIChlcnIpCj4+ICAJ CWdvdG8gZXJyb3JfcHV0X2RldmljZTsKPj4gCj4+IC0JZGV2X2luZm8oJnd3YW5kZXYtPmRldiwg InBvcnQgJXMgYXR0YWNoZWRcbiIsIGRldl9uYW1lKCZwb3J0LQo+PiA+ZGV2KSk7Cj4+ICAJcmV0 dXJuIHBvcnQ7Cj4+IAo+PiAgZXJyb3JfcHV0X2RldmljZToKPj4gLS0KPj4gMi4yNS4xCj4+IAo+ Cg==