From: Pavel Skripkin <paskripkin@gmail•com>
To: Greg KH <gregkh@linuxfoundation•org>
Cc: davem@davemloft•net, kuba@kernel•org, tanghui20@huawei•com,
andrew@lunn•ch, oneukum@suse•com, arnd@arndb•de,
linux-usb@vger•kernel.org, netdev@vger•kernel.org,
linux-kernel@vger•kernel.org,
syzbot+003c0a286b9af5412510@syzkaller•appspotmail.com
Subject: Re: [PATCH] net: mcs7830: handle usb read errors properly
Date: Fri, 7 Jan 2022 13:18:27 +0300 [thread overview]
Message-ID: <d36007da-58a3-da8d-dcad-e41b1c5cffa8@gmail.com> (raw)
In-Reply-To: <YdgQuavHA/T8tlHi@kroah.com>
Hi Greg,
On 1/7/22 13:06, Greg KH wrote:
>
> We have a usb core function that handles these "short reads are an
> error" issue. Perhaps usbnet_read_cmd() should be converted to use it
> instead?
>
I thought about it. I am not sure, that there are no callers, that
expect various length data. I remember, that I met such problem in atusb
driver, but it uses plain usb API.
I believe, we can provide new usbnet API, that will use
usb_control_msg_{recv,send} and сarefully convert drivers to use it.
When there won't be any callers of the old one we can just rename it.
I might be missing something about usbnet, so, please, correct me if I
am wrong here :)
With regards,
Pavel Skripkin
next prev parent reply other threads:[~2022-01-07 10:18 UTC|newest]
Thread overview: 5+ messages / expand[flat|nested] mbox.gz Atom feed top
2022-01-06 22:57 [PATCH] net: mcs7830: handle usb read errors properly Pavel Skripkin
2022-01-07 2:31 ` Arnd Bergmann
2022-01-07 10:06 ` Greg KH
2022-01-07 10:18 ` Pavel Skripkin [this message]
2022-01-10 1:00 ` patchwork-bot+netdevbpf
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