netdev - Re: [PATCH] rtl8xxxu: disable interrupt_in transfer for 8188cu and 8192cu

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Message-ID: <d32690a6-f679-c676-1461-10b47ae3428b@gmail.com>
Date:   Tue, 6 Jul 2021 13:35:56 -0400
From:   Jes Sorensen <jes.sorensen@...il.com>
To:     chris.chiu@...onical.com, kvalo@...eaurora.org,
        davem@...emloft.net, kuba@...nel.org, code@...o-schneider.ch
Cc:     linux-wireless@...r.kernel.org, netdev@...r.kernel.org,
        linux-kernel@...r.kernel.org
Subject: Re: [PATCH] rtl8xxxu: disable interrupt_in transfer for 8188cu and
 8192cu

On 7/1/21 12:33 PM, chris.chiu@...onical.com wrote:
> From: Chris Chiu <chris.chiu@...onical.com>
> 
> There will be crazy numbers of interrupts triggered by 8188cu and
> 8192cu module, around 8000~10000 interrupts per second, on the usb
> host controller. Compare with the vendor driver source code, it's
> mapping to the configuration CONFIG_USB_INTERRUPT_IN_PIPE and it is
> disabled by default.
> 
> Since the interrupt transfer is neither used for TX/RX nor H2C
> commands. Disable it to avoid the confusing interrupts for the
> 8188cu and 8192cu module which I only have for verification.
> 
> Signed-off-by: Chris Chiu <chris.chiu@...onical.com>

I remember noticing this earlier but never had a chance to dig into it.

Thanks for fixing this!

Acked-by: Jes Sorensen <Jes.Sorensen@...il.com>

Jes