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Sat, 17 May 2025 17:09:34 +0800 (CST) Date: Sat, 17 May 2025 17:09:34 +0800 (CST) From: "David Wang" <00107082@163.com> To: "Oliver Neukum" , "Greg KH" Cc: mathias.nyman@intel.com, stern@rowland.harvard.edu, linux-kernel@vger.kernel.org, linux-usb@vger.kernel.org Subject: Re: [PATCH v2 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: References: <20250513113817.11962-1-00107082@163.com> <20250514064455.5488-1-00107082@163.com> <2025051405-glare-crazily-a9fa@gregkh> X-NTES-SC: AL_Qu2fBficvUEs4iWRYOkXn0oTju85XMCzuv8j3YJeN500qCTp5i0rZ25sIEvQ0fmoFSSmoQmbWyhi+uN1ZJN5YJ65a+evgfq1KzBe38IqD3dI 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: <274d13bb.2736.196dd818307.Coremail.00107082@163.com> X-Coremail-Locale: zh_CN X-CM-TRANSID:digvCgDnTzFPUihoUtUGAA--.43916W X-CM-SenderInfo: qqqrilqqysqiywtou0bp/1tbiqA5QqmgoQ9C8gAAHs0 X-Coremail-Antispam: 1U5529EdanIXcx71UUUUU7vcSsGvfC2KfnxnUU== CkF0IDIwMjUtMDUtMTQgMTc6MzQ6MjEsICJPbGl2ZXIgTmV1a3VtIiA8b25ldWt1bUBzdXNlLmNv bT4gd3JvdGU6Cj5PbiAxNC4wNS4yNSAwOToyOSwgR3JlZyBLSCB3cm90ZToKPiAgCj4+IE5vLCB0 aGlzIGlzbid0IG5lY2Vzc2FyaWx5IHRydWUgYXQgYWxsLiAgQWxsb2NhdGlvbnMgYXJlIGZhc3Qs IGFuZCBpZiB3ZQo+PiBmcmVlL2FsbG9jYXRlIHRoaW5ncyBxdWlja2x5LCBpdCdzIGV2ZW4gZmFz dGVyLiAgVVNCIGlzIGxpbWl0ZWQgYnkgdGhlCj4+IGhhcmR3YXJlIHRocm91Z2hwdXQsIHdoaWNo IGlzIF92ZXJ5XyBzbG93IGNvbXBhcmVkIHRvIG1lbW9yeSBhY2Nlc3NlcyBvZgo+PiB0aGUgYWxs b2NhdG9yLgo+Cj5JZiBhbmQgb25seSBpZiB3ZSBkbyBub3QgdHJpZ2dlciBkaXNrIElPLiBJZiB5 b3UgcmVhbGx5IHdhbnQgdG8gZ2l2ZSB0aGlzIHBhdGNoCj5hIGdvb2QgcGVyZm9ybWFuY2UgdGVz dGluZyB5b3UnZCBoYXZlIHRvIGRvIGl0IHVuZGVyIG1lbW9yeSBwcmVzc3VyZS4KPgo+CVJlZ2Fy ZHMKPgkJT2xpdmVyCgoKSGksIEkgbWFkZSBzb21lIHRlc3Q6CgpVc2luZyBGUFMgZm9yIHdlYmNh bSBhbmQgYml0cmF0ZSBmb3IgYXVkaW8gbWljIGZvciBtZWFzdXJlbWVudC4KV2hlbiBzeXN0ZW0g aXMgdW5kZXIgbm8gbWVtb3J5IHByZXNzdXJlLCBubyBzaWduaWZpY2FudCBkaWZmZXJlbmNlIGNv dWxkIGJlIG9ic2VydmVkIHcvbyB0aGlzIHBhdGNoLgpXaGVuIHN5c3RlbSBpcyB1bmRlciBoZWF2 eSBtZW1vcnkgcHJlc3N1cmUsIGJpdHJhdGUgd291bGQgZHJvcCBmcm9tIH43NjAuM2tiaXRzL3Mg dG8gfjUyNC4za2JpdHMvcywKYnV0IHRoaXMgcGF0Y2ggZG9zZSBub3QgbWFrZSBhbnkgc2lnbmlm aWNhbnQgZGlmZmVyZW5jZSwgYml0cmF0ZSBkcm9wcyBhcmUgYWxtb3N0IHRoZSBzYW1lIHcvbyB0 aGlzLiAKV2hlbiB1bmRlciBoZWF2eSBtZW1vcnkgcHJlc3N1cmUsIG15IHdob2xlIHN5c3RlbSBn ZXRzIHNsb3cuLi4uCgpCdXQgSSB0aGluaywgaW4gYmV0d2VlbiBubyBtZW1vcnkgcHJlc3N1cmUg YW5kIGhlYXZ5IG1lbW9yeSBwcmVzc3VyZSwgdGhlcmUgd291bGQgYmUgYSBwb2ludCB3aGVyZQph biBleHRyYSAxay9zIHdvdWxkIGtpY2sgc3RhcnQgYSBjaGFpbi1vZi1lZmZlY3QgbGFuZGluZyBh IHZlcnkgYmFkIHBlcmZvcm1hbmNlLCBpdCBpcyBqdXN0IHZlcnkgaGFyZAp0byBwaW5wb2ludC4K ClVzaW5nIG15IHdlYmNhbSB3b3VsZCBoYXZlIH4yNTAvcyBtZW1vcnkgYWxsb2NhdGlvbiByYXRl LCBhbmQgbXkgbWljIH4xay9zLiBJIGFtIGltYWdpbmcgYSBzeXN0ZW0gd2l0aApzZXZlcmFsIHVz YiB3ZWJjYW0vbWljIGNvbm5lY3RlZC4gVGhlcmUgd291bGQgYmUgeCoxay9zIGFsbG9jYXRpb24g aWYgdGhvc2UgZGV2aWNlcyBhcmUgdXNlZAphdCB0aGUgc2FtZSB0aW1lLiAoTm90IHN1cmUgd2hl dGhlciBhbGwgYWxsY3RhdGlvbiBjb3VsZCBiZSBhdm9pZGVkIHVuZGVyIGhlYXZ5IHVzYWdlIG9m IHVzYiBkZXZpY2VzLApidXQgSSB0aGluayBnb29kIHBhcnQgb2YgdGhlIGFsbG9jYXRpb25zIGNh biBiZSByZXVzZWQuKQoKU3RpbGwgdGhpbmsgdGhpcyBjaGFuZ2UgYmVuZWZpdHMgZXZlbiB3aXRo b3V0IGEgc29saWQgZXZpZGVuY2UgeWV0LgooSSBoYXZlIHNlbmQgb3V0IGFub3RoZXIgdmVyc2lv biBhZGRyZXNzaW5nIE9saXZlcidzIGNvbW1lbnRzIGFib3V0IHVyYiBtYW5hZ2VkIGJ5IGRyaXZl cnMpCgoKVGhhbmtzCkRhdmlk