[{"id":3676198,"web_url":"http://patchwork.ozlabs.org/comment/3676198/","msgid":"<20260411-malachite-phoenix-of-discourse-bdf44a@sudeepholla>","list_archive_url":null,"date":"2026-04-11T17:41:21","subject":"Re: [PATCH] mailbox: prefix new constants with MBOX_","submitter":{"id":92699,"url":"http://patchwork.ozlabs.org/api/people/92699/","name":"Sudeep Holla","email":"sudeep.holla@kernel.org"},"content":"On Fri, Apr 10, 2026 at 02:49:12PM +0200, Wolfram Sang wrote:\n> Commit 89e5d7d61600 (\"mailbox: remove superfluous internal header\")\n> moved some constants to a public header but forgot to add a mailbox\n> specific prefix. Add this now to prevent future collisions on a too\n> generic naming.\n> \n> Link: https://sashiko.dev/#/patchset/20260327151112.5202-2-wsa%2Brenesas%40sang-engineering.com\n> Signed-off-by: Wolfram Sang \n> ---\n> \n> This patch improves the above mentioned commit which already sits in\n> -next. It is not really a fix but it probably is still a good idea to\n> apply it before rc1 to avoid confusion.\n> \n\nAgreed and makes sense to have the mailbox namespace for these macro.\n\nReviewed-by: Sudeep Holla ","headers":{"Return-Path":"\n ","X-Original-To":["incoming@patchwork.ozlabs.org","linux-tegra@vger.kernel.org"],"Delivered-To":"patchwork-incoming@legolas.ozlabs.org","Authentication-Results":["legolas.ozlabs.org;\n\tdkim=pass (2048-bit key;\n unprotected) header.d=kernel.org header.i=@kernel.org header.a=rsa-sha256\n header.s=k20201202 header.b=FWMe6+nM;\n\tdkim-atps=neutral","legolas.ozlabs.org;\n spf=pass (sender SPF authorized) smtp.mailfrom=vger.kernel.org\n (client-ip=104.64.211.4; helo=sin.lore.kernel.org;\n envelope-from=linux-tegra+bounces-13709-incoming=patchwork.ozlabs.org@vger.kernel.org;\n receiver=patchwork.ozlabs.org)","smtp.subspace.kernel.org;\n\tdkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org\n header.b=\"FWMe6+nM\"","smtp.subspace.kernel.org;\n arc=none smtp.client-ip=10.30.226.201"],"Received":["from sin.lore.kernel.org (sin.lore.kernel.org [104.64.211.4])\n\t(using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits)\n\t key-exchange x25519 server-signature ECDSA (secp384r1) server-digest SHA384)\n\t(No client certificate requested)\n\tby legolas.ozlabs.org (Postfix) with ESMTPS id 4ftLZN0wZJz1yGb\n\tfor ; Sun, 12 Apr 2026 03:41:32 +1000 (AEST)","from smtp.subspace.kernel.org (conduit.subspace.kernel.org\n [100.90.174.1])\n\tby sin.lore.kernel.org (Postfix) with ESMTP id D8BFA3006206\n\tfor ; Sat, 11 Apr 2026 17:41:28 +0000 (UTC)","from localhost.localdomain (localhost.localdomain [127.0.0.1])\n\tby smtp.subspace.kernel.org (Postfix) with ESMTP id 692CB3B9DA2;\n\tSat, 11 Apr 2026 17:41:27 +0000 (UTC)","from smtp.kernel.org (aws-us-west-2-korg-mail-1.web.codeaurora.org\n [10.30.226.201])\n\t(using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits))\n\t(No client certificate requested)\n\tby smtp.subspace.kernel.org (Postfix) with ESMTPS id 2728C3B9DB3;\n\tSat, 11 Apr 2026 17:41:26 +0000 (UTC)","by smtp.kernel.org (Postfix) with ESMTPSA id 8E5F8C4CEF7;\n\tSat, 11 Apr 2026 17:41:23 +0000 (UTC)"],"ARC-Seal":"i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116;\n\tt=1775929287; cv=none;\n b=uSoAFw7rqREACKMqb7EzgMEtT2MvmwlKjrpHLKIq48zmJ1+zmr6bfYoh6NbiwgyBUbBuqvK37oS8SXG1p/Qo6Wyc+vUcEZuhjIH3sMGaZadFx/dqfjinWaWgECfq92WHLUttK28i8R3QfIn0f3zJqeUInQj7oLsymM0h3/om0/Y=","ARC-Message-Signature":"i=1; a=rsa-sha256; d=subspace.kernel.org;\n\ts=arc-20240116; t=1775929287; c=relaxed/simple;\n\tbh=/DQ7HVNRXx7m8000Zg8l40K+eA6BYCD8ejkHrrjEhvU=;\n\th=Date:From:To:Cc:Subject:Message-ID:References:MIME-Version:\n\t Content-Type:Content-Disposition:In-Reply-To;\n b=qn3LtjL/HbzjNWmF11L60/8e+0f+q+W3Lq/zYVB5T16amBX4oCI61cSmUZ6i+2PHeGM8xWGNeYUwh+AYN/F8oePuk9KVeH3PahFkMg48uWtxo+zSunSWfDYY0r+k0MBOULRkZFisr68Me+9uf1E56jJln5kMaXi1WWYV42uaNjA=","ARC-Authentication-Results":"i=1; smtp.subspace.kernel.org;\n dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org\n header.b=FWMe6+nM; arc=none smtp.client-ip=10.30.226.201","DKIM-Signature":"v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org;\n\ts=k20201202; t=1775929286;\n\tbh=/DQ7HVNRXx7m8000Zg8l40K+eA6BYCD8ejkHrrjEhvU=;\n\th=Date:From:To:Cc:Subject:References:In-Reply-To:From;\n\tb=FWMe6+nMFoOGF2h+dtgHyWlmSQoPQjWvj9zanstYdWqXw2g+jZKO13PFK6frgUTj8\n\t mQOrOgQk4gZm/cxm/6StK2WEHTBgtIwURY1mNPAbtL5LNRZJTPUNEk9IonpglI/YdN\n\t c/zyGX73BjQMt/IZAoOdSkzJxcOUYNJ9UOHb22dyUOod8O3h2i7QNpqvbcjhBqRhWZ\n\t QYHAeRFeL/39EzdU5MfMwebB84NWSl7HE/BRv2JI9vc6juBJejyziW9dMtSSICOJCR\n\t yYdoazp1mDLrtM5PBtOJodUQUjWhtuEfMNu/2h5Z05fbeQ5l+sXd/ULHatW8MpU2p2\n\t qMKm0NSkmAp4g==","Date":"Sat, 11 Apr 2026 18:41:21 +0100","From":"Sudeep Holla ","To":"Wolfram Sang ","Cc":"linux-renesas-soc@vger.kernel.org,\n\tJassi Brar ,\n\tPeter Chen ,\n\tFugang Duan ,\n\tCIX Linux Kernel Upstream Group ,\n\tFrank Li , Sascha Hauer ,\n\tPengutronix Kernel Team ,\n\tFabio Estevam ,\n\tMatthias Brugger ,\n\tAngeloGioacchino Del Regno ,\n\tThierry Reding ,\n\tJonathan Hunter ,\n\tlinux-arm-kernel@lists.infradead.org, imx@lists.linux.dev,\n\tlinux-mediatek@lists.infradead.org, linux-tegra@vger.kernel.org","Subject":"Re: [PATCH] mailbox: prefix new constants with MBOX_","Message-ID":"<20260411-malachite-phoenix-of-discourse-bdf44a@sudeepholla>","References":"<20260410125105.39340-2-wsa+renesas@sang-engineering.com>","Precedence":"bulk","X-Mailing-List":"linux-tegra@vger.kernel.org","List-Id":"","List-Subscribe":"","List-Unsubscribe":"","MIME-Version":"1.0","Content-Type":"text/plain; charset=us-ascii","Content-Disposition":"inline","In-Reply-To":"<20260410125105.39340-2-wsa+renesas@sang-engineering.com>"}},{"id":3676405,"web_url":"http://patchwork.ozlabs.org/comment/3676405/","msgid":"","list_archive_url":null,"date":"2026-04-13T01:42:46","subject":"Re: [PATCH] mailbox: prefix new constants with MBOX_","submitter":{"id":4220,"url":"http://patchwork.ozlabs.org/api/people/4220/","name":"Jassi Brar","email":"jassisinghbrar@gmail.com"},"content":"On Fri, Apr 10, 2026 at 7:51 AM Wolfram Sang\n wrote:\n>\n> Commit 89e5d7d61600 (\"mailbox: remove superfluous internal header\")\n> moved some constants to a public header but forgot to add a mailbox\n> specific prefix. Add this now to prevent future collisions on a too\n> generic naming.\n>\n> Link: https://sashiko.dev/#/patchset/20260327151112.5202-2-wsa%2Brenesas%40sang-engineering.com\n> Signed-off-by: Wolfram Sang \n> ---\n>\n> This patch improves the above mentioned commit which already sits in\n> -next. It is not really a fix but it probably is still a good idea to\n> apply it before rc1 to avoid confusion.\n>\n> drivers/mailbox/cix-mailbox.c | 2 +-\n> drivers/mailbox/imx-mailbox.c | 2 +-\n> drivers/mailbox/mailbox.c | 22 +++++++++++-----------\n> drivers/mailbox/mtk-cmdq-mailbox.c | 2 +-\n> drivers/mailbox/omap-mailbox.c | 2 +-\n> drivers/mailbox/tegra-hsp.c | 2 +-\n> include/linux/mailbox_controller.h | 6 +++---\n> 7 files changed, 19 insertions(+), 19 deletions(-)\n>\n> diff --git a/drivers/mailbox/cix-mailbox.c b/drivers/mailbox/cix-mailbox.c\n> index 8cfaa91b75bd..43c76cdab24a 100644\n> --- a/drivers/mailbox/cix-mailbox.c\n> +++ b/drivers/mailbox/cix-mailbox.c\n> @@ -413,7 +413,7 @@ static int cix_mbox_startup(struct mbox_chan *chan)\n> switch (cp->type) {\n> case CIX_MBOX_TYPE_DB:\n> /* Overwrite txdone_method for DB channel */\n> - chan->txdone_method = TXDONE_BY_ACK;\n> + chan->txdone_method = MBOX_TXDONE_BY_ACK;\n> fallthrough;\n> case CIX_MBOX_TYPE_REG:\n> if (priv->dir == CIX_MBOX_TX) {\n> diff --git a/drivers/mailbox/imx-mailbox.c b/drivers/mailbox/imx-mailbox.c\n> index 22331b579489..246a9a9e3952 100644\n> --- a/drivers/mailbox/imx-mailbox.c\n> +++ b/drivers/mailbox/imx-mailbox.c\n> @@ -732,7 +732,7 @@ static struct mbox_chan * imx_mu_xlate(struct mbox_controller *mbox,\n> p_chan = &mbox->chans[chan];\n>\n> if (type == IMX_MU_TYPE_TXDB_V2)\n> - p_chan->txdone_method = TXDONE_BY_ACK;\n> + p_chan->txdone_method = MBOX_TXDONE_BY_ACK;\n>\n> return p_chan;\n> }\n> diff --git a/drivers/mailbox/mailbox.c b/drivers/mailbox/mailbox.c\n> index 138ffbcd4fde..30eafdf3a91e 100644\n> --- a/drivers/mailbox/mailbox.c\n> +++ b/drivers/mailbox/mailbox.c\n> @@ -72,7 +72,7 @@ static void msg_submit(struct mbox_chan *chan)\n> }\n> }\n>\n> - if (!err && (chan->txdone_method & TXDONE_BY_POLL)) {\n> + if (!err && (chan->txdone_method & MBOX_TXDONE_BY_POLL)) {\n> /* kick start the timer immediately to avoid delays */\n> scoped_guard(spinlock_irqsave, &chan->mbox->poll_hrt_lock)\n> hrtimer_start(&chan->mbox->poll_hrt, 0, HRTIMER_MODE_REL);\n> @@ -162,7 +162,7 @@ EXPORT_SYMBOL_GPL(mbox_chan_received_data);\n> */\n> void mbox_chan_txdone(struct mbox_chan *chan, int r)\n> {\n> - if (unlikely(!(chan->txdone_method & TXDONE_BY_IRQ))) {\n> + if (unlikely(!(chan->txdone_method & MBOX_TXDONE_BY_IRQ))) {\n> dev_err(chan->mbox->dev,\n> \"Controller can't run the TX ticker\\n\");\n> return;\n> @@ -183,7 +183,7 @@ EXPORT_SYMBOL_GPL(mbox_chan_txdone);\n> */\n> void mbox_client_txdone(struct mbox_chan *chan, int r)\n> {\n> - if (unlikely(!(chan->txdone_method & TXDONE_BY_ACK))) {\n> + if (unlikely(!(chan->txdone_method & MBOX_TXDONE_BY_ACK))) {\n> dev_err(chan->mbox->dev, \"Client can't run the TX ticker\\n\");\n> return;\n> }\n> @@ -344,8 +344,8 @@ static int __mbox_bind_client(struct mbox_chan *chan, struct mbox_client *cl)\n> chan->cl = cl;\n> init_completion(&chan->tx_complete);\n>\n> - if (chan->txdone_method == TXDONE_BY_POLL && cl->knows_txdone)\n> - chan->txdone_method = TXDONE_BY_ACK;\n> + if (chan->txdone_method == MBOX_TXDONE_BY_POLL && cl->knows_txdone)\n> + chan->txdone_method = MBOX_TXDONE_BY_ACK;\n> }\n>\n> if (chan->mbox->ops->startup) {\n> @@ -499,8 +499,8 @@ void mbox_free_channel(struct mbox_chan *chan)\n> scoped_guard(spinlock_irqsave, &chan->lock) {\n> chan->cl = NULL;\n> chan->active_req = MBOX_NO_MSG;\n> - if (chan->txdone_method == TXDONE_BY_ACK)\n> - chan->txdone_method = TXDONE_BY_POLL;\n> + if (chan->txdone_method == MBOX_TXDONE_BY_ACK)\n> + chan->txdone_method = MBOX_TXDONE_BY_POLL;\n> }\n>\n> module_put(chan->mbox->dev->driver->owner);\n> @@ -531,13 +531,13 @@ int mbox_controller_register(struct mbox_controller *mbox)\n> return -EINVAL;\n>\n> if (mbox->txdone_irq)\n> - txdone = TXDONE_BY_IRQ;\n> + txdone = MBOX_TXDONE_BY_IRQ;\n> else if (mbox->txdone_poll)\n> - txdone = TXDONE_BY_POLL;\n> + txdone = MBOX_TXDONE_BY_POLL;\n> else /* It has to be ACK then */\n> - txdone = TXDONE_BY_ACK;\n> + txdone = MBOX_TXDONE_BY_ACK;\n>\n> - if (txdone == TXDONE_BY_POLL) {\n> + if (txdone == MBOX_TXDONE_BY_POLL) {\n>\n> if (!mbox->ops->last_tx_done) {\n> dev_err(mbox->dev, \"last_tx_done method is absent\\n\");\n> diff --git a/drivers/mailbox/mtk-cmdq-mailbox.c b/drivers/mailbox/mtk-cmdq-mailbox.c\n> index 547a10a8fad3..e523c84b4808 100644\n> --- a/drivers/mailbox/mtk-cmdq-mailbox.c\n> +++ b/drivers/mailbox/mtk-cmdq-mailbox.c\n> @@ -728,7 +728,7 @@ static int cmdq_probe(struct platform_device *pdev)\n> cmdq->mbox.ops = &cmdq_mbox_chan_ops;\n> cmdq->mbox.of_xlate = cmdq_xlate;\n>\n> - /* make use of TXDONE_BY_ACK */\n> + /* make use of MBOX_TXDONE_BY_ACK */\n> cmdq->mbox.txdone_irq = false;\n> cmdq->mbox.txdone_poll = false;\n>\n> diff --git a/drivers/mailbox/omap-mailbox.c b/drivers/mailbox/omap-mailbox.c\n> index 5772c6b9886a..535ca8020877 100644\n> --- a/drivers/mailbox/omap-mailbox.c\n> +++ b/drivers/mailbox/omap-mailbox.c\n> @@ -238,7 +238,7 @@ static int omap_mbox_startup(struct omap_mbox *mbox)\n> }\n>\n> if (mbox->send_no_irq)\n> - mbox->chan->txdone_method = TXDONE_BY_ACK;\n> + mbox->chan->txdone_method = MBOX_TXDONE_BY_ACK;\n>\n> omap_mbox_enable_irq(mbox, IRQ_RX);\n>\n> diff --git a/drivers/mailbox/tegra-hsp.c b/drivers/mailbox/tegra-hsp.c\n> index 7b1e1b83ea29..500fa77c7d53 100644\n> --- a/drivers/mailbox/tegra-hsp.c\n> +++ b/drivers/mailbox/tegra-hsp.c\n> @@ -514,7 +514,7 @@ static int tegra_hsp_mailbox_startup(struct mbox_chan *chan)\n> struct tegra_hsp *hsp = mb->channel.hsp;\n> unsigned long flags;\n>\n> - chan->txdone_method = TXDONE_BY_IRQ;\n> + chan->txdone_method = MBOX_TXDONE_BY_IRQ;\n>\n> /*\n> * Shared mailboxes start out as consumers by default. FULL and EMPTY\n> diff --git a/include/linux/mailbox_controller.h b/include/linux/mailbox_controller.h\n> index e3896b08f22e..a49ee687d4cf 100644\n> --- a/include/linux/mailbox_controller.h\n> +++ b/include/linux/mailbox_controller.h\n> @@ -15,9 +15,9 @@ struct mbox_chan;\n> /* Sentinel value distinguishing \"no active request\" from \"NULL message data\" */\n> #define MBOX_NO_MSG ((void *)-1)\n>\n> -#define TXDONE_BY_IRQ BIT(0) /* controller has remote RTR irq */\n> -#define TXDONE_BY_POLL BIT(1) /* controller can read status of last TX */\n> -#define TXDONE_BY_ACK BIT(2) /* S/W ACK received by Client ticks the TX */\n> +#define MBOX_TXDONE_BY_IRQ BIT(0) /* controller has remote RTR irq */\n> +#define MBOX_TXDONE_BY_POLL BIT(1) /* controller can read status of last TX */\n> +#define MBOX_TXDONE_BY_ACK BIT(2) /* S/W ACK received by Client ticks the TX */\n>\n> /**\n> * struct mbox_chan_ops - methods to control mailbox channels\n> --\n> 2.51.0\n>\nApplied to mailbox/for-next\nThanks\nJassi","headers":{"Return-Path":"\n ","X-Original-To":["incoming@patchwork.ozlabs.org","linux-tegra@vger.kernel.org"],"Delivered-To":"patchwork-incoming@legolas.ozlabs.org","Authentication-Results":["legolas.ozlabs.org;\n\tdkim=pass (2048-bit key;\n unprotected) header.d=gmail.com header.i=@gmail.com header.a=rsa-sha256\n header.s=20251104 header.b=MAp2hMTp;\n\tdkim-atps=neutral","legolas.ozlabs.org;\n spf=pass (sender SPF authorized) smtp.mailfrom=vger.kernel.org\n (client-ip=2600:3c09:e001:a7::12fc:5321; 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