linux-kernel - Re: [PATCH] Drivers: hv: vmbus: Drop error message when 'No request id available'

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Date:   Wed, 3 Mar 2021 11:52:13 +0000
From:   Wei Liu <wei.liu@...nel.org>
To:     "Andrea Parri (Microsoft)" <parri.andrea@...il.com>
Cc:     linux-kernel@...r.kernel.org, kys@...rosoft.com,
        haiyangz@...rosoft.com, sthemmin@...rosoft.com, wei.liu@...nel.org,
        linux-hyperv@...r.kernel.org, mikelley@...rosoft.com
Subject: Re: [PATCH] Drivers: hv: vmbus: Drop error message when 'No request
 id available'

On Mon, Mar 01, 2021 at 08:13:48PM +0100, Andrea Parri (Microsoft) wrote:
> Running out of request IDs on a channel essentially produces the same
> effect as running out of space in the ring buffer, in that -EAGAIN is
> returned.  The error message in hv_ringbuffer_write() should either be
> dropped (since we don't output a message when the ring buffer is full)
> or be made conditional/debug-only.
> 
> Suggested-by: Michael Kelley <mikelley@...rosoft.com>
> Signed-off-by: Andrea Parri (Microsoft) <parri.andrea@...il.com>
> Fixes: e8b7db38449ac ("Drivers: hv: vmbus: Add vmbus_requestor data structure for VMBus hardening")

Applied to hyperv-fixes.

Wei.