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Date: Tue, 21 Jul 2020 10:34:06 -0700 From: Florian Fainelli <f.fainelli@...il.com> To: Al Cooper <alcooperx@...il.com>, linux-kernel@...r.kernel.org Cc: devicetree@...r.kernel.org, Felipe Balbi <balbi@...nel.org>, Greg Kroah-Hartman <gregkh@...uxfoundation.org>, linux-usb@...r.kernel.org, Rob Herring <robh+dt@...nel.org>, Sasi Kumar <sasi.kumar@...adcom.com> Subject: Re: [PATCH v2 5/7] usb: bdc: driver runs out of buffer descriptors on large ADB transfers On 7/21/20 7:43 AM, Al Cooper wrote: > Version v1.0.40 of the Android host ADB software increased maximum > transfer sizes from 256K to 1M. Since the STB ADB gadget driver > requests only 16K at a time, the BDC driver ran out of buffer > descriptors (BDs) if the queuing happens faster than the incoming > 16K transfers. This issue is fixed by doubling the number of BDs > that can be queued so that the entire 1M request can be queued > without running out of buffers. > > Signed-off-by: Al Cooper <alcooperx@...il.com> Acked-by: Florian Fainelli <f.fainelli@...il.com> -- Florian
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