| Date | Mon, 9 Sep 2019 14:15:55 +0200 | From | Pavel Machek <> | Subject | Re: [PATCH 4.19 19/57] Bluetooth: hidp: Let hidp_send_message return number of queued bytes |
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Hi!
> [ Upstream commit 48d9cc9d85dde37c87abb7ac9bbec6598ba44b56 ] > > Let hidp_send_message return the number of successfully queued bytes > instead of an unconditional 0. > > With the return value fixed to 0, other drivers relying on hidp, such as > hidraw, can not return meaningful values from their respective > implementations of write(). In particular, with the current behavior, a > hidraw device's write() will have different return values depending on > whether the device is connected via USB or Bluetooth, which makes it > harder to abstract away the transport layer.
So, does this change any actual behaviour?
Is it fixing a bug, or is it just preparation for a patch that is not going to make it to stable? Pavel
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