From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from smtp.kernel.org (aws-us-west-2-korg-mail-1.web.codeaurora.org [10.30.226.201]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id A77592D0C99 for ; Tue, 17 Feb 2026 10:11:10 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=10.30.226.201 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1771323070; cv=none; b=MAj6V9Fl2+uxIUyhrsiSzGkcgz5hDk0UiQ4vfVtcOFhgsh7GVCNAYFmqdYvAslqZZLHNI5acylQiQnwG0bjNNgLRSvGuB/uTQG6GdOF+esGzLliG+fIWAxVwm7S2USgqBlHwwbJ91SDTWs75qJQW1G38p5J2hUHPiM9cQfufuR4= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1771323070; c=relaxed/simple; bh=9Sl/+tosaFtcqvCBF97su2K4gi86mH8pdd6wkRJK08c=; h=From:To:Cc:Subject:In-Reply-To:References:Date:Message-ID: MIME-Version:Content-Type; b=bSpV2tllBOXHSGIG18l1yBRr2dwMEhdkQSmmdSHEtKJkL3i2DtnQbJjHxKTCO+zTkz6XJGk/JWIric+c1CkCSfs4DsBTptDxXjqHuwB/zc3fuXe7Ua4+cnjKseBZkD019Y8FTiJtZpF0l9MxDlMsm7oZ6KS52Wexlpv6Z59yClo= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b=J6iqxYBj; arc=none smtp.client-ip=10.30.226.201 Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b="J6iqxYBj" Received: by smtp.kernel.org (Postfix) with ESMTPSA id B661AC19424; Tue, 17 Feb 2026 10:11:09 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1771323070; bh=9Sl/+tosaFtcqvCBF97su2K4gi86mH8pdd6wkRJK08c=; h=From:To:Cc:Subject:In-Reply-To:References:Date:From; b=J6iqxYBjjDPBGVD206Q8Jc95q2q77CvUyDTkGriMH6wPgbD7UJSd/2SixLDFpm+aA YZn7UMjvjCIAiQLLONYez2DFdRGwl+QH1xOv8/eiQJX2IlcFwW0NBCR8t5nUkdZ9WZ Nq4WpdH0KWz04fuS3PNeAoxk9A657X+O20OKa1ej7v70T3Z/gRaU6OPy0GgTEthoK9 IlU3RXmJibfo6jCPkQ4lKVtbJDV16vx9ITxz063enHf+6GuSXbFw+oiEHS/BV+xije 7O5nh2l5bs+BZWotJwjenTwLTSjd6soLzBZCsWuRrZOGk9RNaIN9YJYhhcP+EHUMbH LVIgCcd9Z07Qw== From: Thomas Gleixner To: Douglas Anderson , jassisinghbrar@gmail.com Cc: Douglas Anderson , linux-kernel@vger.kernel.org Subject: Re: [PATCH v3 06/15] irqchip/qcom-mpm: Use mbox_ring_doorbell() instead of NULL message In-Reply-To: <20260216100943.v3.6.I59d887fd641f70e40950b7545ed31f193cd1c270@changeid> References: <20260216181002.3475421-1-dianders@chromium.org> <20260216100943.v3.6.I59d887fd641f70e40950b7545ed31f193cd1c270@changeid> Date: Tue, 17 Feb 2026 11:11:06 +0100 Message-ID: <87v7fvel39.ffs@tglx> Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain On Mon, Feb 16 2026 at 10:09, Douglas Anderson wrote: > As per the patch ("mailbox: Deprecate NULL mbox messages; Introduce > mbox_ring_doorbell()"), we want to switch all users of NULL mailbox > messages to use mbox_ring_doorbell(). > > This client only ever sent NULL messages, so the transition is > straightforward. > > This client didn't previously call mbox_client_txdone() and it appears > that the mailboxes it hooks up with (qcom-apcs-ipc-mailbox.c or > qcom-ipcc.c) have both `txdone_irq` and `txdone_poll` as > false. Presumably this means the client was relying the mailbox core's > quirky behavior when sending NULL messages. > > Signed-off-by: Douglas Anderson Acked-by: Thomas Gleixner