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 C2574380; Mon, 10 Mar 2025 08:56:36 +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=1741596996; cv=none; b=el34XrQfVrx6LG3Zke2qUf1fl/7/q09J2UpjMMTo7Jma6cP3s0czXVhtKYeNfIiH0HrBFZbreYZt3pLvKyGyPwrXfMG6Gexn40WyYFCVNGItKC7U13tpg1TNEm3JCcXVJ8DzGkPGtlcaVxeNHGKeBiadSkSlLa2FonO8o5bNZAg= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1741596996; c=relaxed/simple; bh=C12mkxyY7Tuz4k36lFMWBiBskfY3UsSgTUDwu4ymK5A=; h=Date:From:To:Cc:Subject:Message-ID:References:MIME-Version: Content-Type:Content-Disposition:In-Reply-To; b=uSdV37EQfykIFegLlGDNdaPot1IpV2QWO8UZuTT5+uMhYRHAhRSPKi+t0yFkUu4J7wwPhFxg2spYksg/eJJDRdZirs0fLdsyPKOVaohb6pRvtTsmYrShPug0T3uI0qRyEYC7b2frzIeyU2cK96YoFEi9DOMkNo1XZXNM3Y2Zxck= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b=VS2GD8mC; 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="VS2GD8mC" Received: by smtp.kernel.org (Postfix) with ESMTPSA id AF69EC4CEEC; Mon, 10 Mar 2025 08:56:29 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1741596996; bh=C12mkxyY7Tuz4k36lFMWBiBskfY3UsSgTUDwu4ymK5A=; h=Date:From:To:Cc:Subject:References:In-Reply-To:From; b=VS2GD8mC3KF67GsqwrZolL2PJC5nV8QLxQyAj07n3f39prZtkH1iJvEM60yAG3gQD V6plRwhAVbOW7QKUgyQAJHRX8KqkzSNYtqJVSaCbMIZFHBfrzwotEzdTyBf7nahb1F ulw5xmNt1ZS0/aH3skbKsPmqAglFS17CXESwCPnsNYfVvt5TieC74ADPeUyUBP34F1 pDsXpTVlIpEGb5v1s3vkFszlbLMYeyG2K7k5dPXep0ShufS8ewpYY5j+8DCkBkiobB dcRrEG7RKtdyu/gY2i+79yqPKgi/ec7BtqCYNCz/r78UnJa0FdyBemgkAxkJvqs9vk pVW7xYFBa9f3g== Date: Mon, 10 Mar 2025 14:26:26 +0530 From: Sumit Garg To: Jens Wiklander Cc: linux-kernel@vger.kernel.org, linux-media@vger.kernel.org, dri-devel@lists.freedesktop.org, linaro-mm-sig@lists.linaro.org, op-tee@lists.trustedfirmware.org, linux-arm-kernel@lists.infradead.org, Olivier Masse , Thierry Reding , Yong Wu , Sumit Semwal , Benjamin Gaignard , Brian Starkey , John Stultz , "T . J . Mercier" , Christian =?iso-8859-1?Q?K=F6nig?= , Matthias Brugger , AngeloGioacchino Del Regno , azarrabi@qti.qualcomm.com, Simona Vetter , Daniel Stone Subject: Re: [PATCH v6 01/10] tee: tee_device_alloc(): copy dma_mask from parent device Message-ID: References: <20250305130634.1850178-1-jens.wiklander@linaro.org> <20250305130634.1850178-2-jens.wiklander@linaro.org> Precedence: bulk X-Mailing-List: linux-media@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: <20250305130634.1850178-2-jens.wiklander@linaro.org> On Wed, Mar 05, 2025 at 02:04:07PM +0100, Jens Wiklander wrote: > If a parent device is supplied to tee_device_alloc(), copy the dma_mask > field into the new device. This avoids future warnings when mapping a > DMA-buf for the device. > > Signed-off-by: Jens Wiklander > --- > drivers/tee/tee_core.c | 2 ++ > 1 file changed, 2 insertions(+) > Reviewed-by: Sumit Garg -Sumit > diff --git a/drivers/tee/tee_core.c b/drivers/tee/tee_core.c > index d113679b1e2d..685afcaa3ea1 100644 > --- a/drivers/tee/tee_core.c > +++ b/drivers/tee/tee_core.c > @@ -922,6 +922,8 @@ struct tee_device *tee_device_alloc(const struct tee_desc *teedesc, > teedev->dev.class = &tee_class; > teedev->dev.release = tee_release_device; > teedev->dev.parent = dev; > + if (dev) > + teedev->dev.dma_mask = dev->dma_mask; > > teedev->dev.devt = MKDEV(MAJOR(tee_devt), teedev->id); > > -- > 2.43.0 >