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Tue, 13 May 2025 16:23:49 +0800 (CST) Date: Tue, 13 May 2025 16:23:49 +0800 (CST) From: "David Wang" <00107082@163.com> To: "Oliver Neukum" Cc: mathias.nyman@intel.com, gregkh@linuxfoundation.org, stern@rowland.harvard.edu, surenb@google.com, kent.overstreet@linux.dev, linux-usb@vger.kernel.org, linux-kernel@vger.kernel.org Subject: Re: [PATCH 1/2] USB: core: add a memory pool to urb for host-controller private data X-Priority: 3 X-Mailer: Coremail Webmail Server Version XT5.0.14 build 20240801(9da12a7b) Copyright (c) 2002-2025 www.mailtech.cn 163com In-Reply-To: <48d5cae9-ff7c-4076-8b71-8c16bcf00443@suse.com> References: <20250512150724.4560-1-00107082@163.com> <20250513055447.5696-1-00107082@163.com> <48d5cae9-ff7c-4076-8b71-8c16bcf00443@suse.com> X-NTES-SC: AL_Qu2fBf2Zu04p7ySdZOkZnEYQheY4XMKyuPkg1YJXOp80vyTg8BgQZm9MAUHHws6uNDKhoAi0TT1A0eZkcIVZfqRklkAzFdBynpW860y7Rrd+ Content-Transfer-Encoding: base64 Content-Type: text/plain; charset=GBK Precedence: bulk X-Mailing-List: linux-usb@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Message-ID: <4006cec4.794d.196c8be2fd1.Coremail.00107082@163.com> X-Coremail-Locale: zh_CN X-CM-TRANSID:bigvCgD3n7eWASNoTlEDAA--.28447W X-CM-SenderInfo: qqqrilqqysqiywtou0bp/xtbB0hdMqmgi-c1uJwADsT X-Coremail-Antispam: 1U5529EdanIXcx71UUUUU7vcSsGvfC2KfnxnUU== CgpBdCAyMDI1LTA1LTEzIDE2OjExOjIwLCAiT2xpdmVyIE5ldWt1bSIgPG9uZXVrdW1Ac3VzZS5j b20+IHdyb3RlOgo+SGksCj4KPk9uIDEzLjA1LjI1IDA3OjU0LCBEYXZpZCBXYW5nIHdyb3RlOgo+ PiBVUkIgb2JqZWN0cyBoYXZlIGxvbmcgbGlmZWN5Y2xlLCBhbiB1cmIgY2FuIGJlIHJldXNlZCBi ZXR3ZWVuCj4+IGVucXVldWUtZGVxdWV1ZSBsb29wczsgVGhlIHByaXZhdGUgZGF0YSBuZWVkZWQg Ynkgc29tZSBob3N0IGNvbnRyb2xsZXIKPj4gaGFzIHZlcnkgc2hvcnQgbGlmZWN5Y2xlLCB0aGUg bWVtb3J5IGlzIGFsbG9jZWQgd2hlbiBlbnF1ZXVlLCBhbmQKPj4gcmVsZWFzZWQgd2hlbiBkZXF1 ZXVlLiBGb3IgZXhhbXBsZSwgb24gYSBzeXN0ZW0gd2l0aCB4aGNpLCBzZXZlcmFsCj4+IG1pbnV0 ZXMgb2YgdXNhZ2Ugb2Ygd2ViY2FtL2tleWJvYXJkL21vdXNlIGhhdmUgbWVtb3J5IGFsbG9jIGNv dW50czoKPj4gICAgZHJpdmVycy91c2IvY29yZS91cmIuYzo3NSBbdXNiY29yZV0gZnVuYzp1c2Jf YWxsb2NfdXJiIDY2MQo+PiAgICBkcml2ZXJzL3VzYi9ob3N0L3hoY2kuYzoxNTU1IFt4aGNpX2hj ZF0gZnVuYzp4aGNpX3VyYl9lbnF1ZXVlIDQyNDg2Mwo+PiBNZW1vcnkgYWxsb2NhdGlvbiBmcmVx dWVuY3kgZm9yIGhvc3QtY29udHJvbGxlciBwcml2YXRlIGRhdGEgY2FuIHJlYWNoCj4+IH4xay9z Lgo+Cj5GaXJzdCBvZiBhbGwsIHRoYW5rIHlvdSBmb3IgdHJ5aW5nIHRvIHRhY2tsZSB0aGlzIGxv bmcgcnVubmluZyBpc3N1ZS4KPgo+PiBAQCAtNzcsNiArNzgsNyBAQCBzdHJ1Y3QgdXJiICp1c2Jf YWxsb2NfdXJiKGludCBpc29fcGFja2V0cywgZ2ZwX3QgbWVtX2ZsYWdzKQo+PiAgIAlpZiAoIXVy YikKPj4gICAJCXJldHVybiBOVUxMOwo+PiAgIAl1c2JfaW5pdF91cmIodXJiKTsKPj4gKwl1cmIt PmhjcHJpdl9tZW1wb29sX2ZsYWdzID0gbWVtX2ZsYWdzOwo+Cj5Oby4gWW91IGNhbm5vdCBkbyB0 aGlzLiBUaGUgZmxhZ3MgeW91IHBhc3MgdG8gdXNiX2FsbG9jX3VyYigpCj5kZXBlbmQgb24gdGhl IGNvbnRleHQgeW91IGNhbGwgaXQgaW4uIEZvciBleGFtcGxlLCBpZiB5b3UgYXJlCj5hbGxvY2F0 aW5nIGl0IHdoaWxlIGhvbGRpbmcgYSBzcGlubG9jaywgb3UgbmVlZCB0byB1c2UgR0ZQX0FUT01J Qwo+Cj5CdXQgdGhhdCBtYXkgb3IgbWF5IG5vdCBiZSB0aGUgc2FtZSBjb250ZXh0IHlvdSBzdWJt aXQgdGhlIFVSQiBpbi4KPlJlY29yZGluZyBtZW1fZmxhZ3MgaGVyZSBtYWtlcyBubyBzZW5zZS4K Pgo+CVJlZ2FyZHMKPgkJT2xpdmVyCgpUaGFua3MgZm9yIHJldmlld2luZyB0aGlzLiAgVGhlIG1l bW9yeSBmbGFnIHRoaW5nIGRvIHJhaXNlIGNvbmNlcm4uIApJIHRoaW5rIEkgY2FuIG1ha2UgYWRq dXN0bWVudDogIHJlYWxsb2MgdGhlIG1lbW9yeSBpZiBmbGFnIGNoYW5nZWQuCgoKVGhhbmtzCkRh dmlkCg==