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[98.128.140.123]) by smtp.gmail.com with ESMTPSA id 4fb4d7f45d1cf-5f087f0a0f3sm2567450a12.43.2025.04.04.07.32.24 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Fri, 04 Apr 2025 07:32:25 -0700 (PDT) From: Jens Wiklander To: 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 Cc: Olivier Masse , Thierry Reding , Yong Wu , Sumit Semwal , Benjamin Gaignard , Brian Starkey , John Stultz , "T . J . Mercier" , =?UTF-8?q?Christian=20K=C3=B6nig?= , Sumit Garg , Matthias Brugger , AngeloGioacchino Del Regno , azarrabi@qti.qualcomm.com, Simona Vetter , Daniel Stone , Jens Wiklander Subject: [PATCH v7 01/11] tee: tee_device_alloc(): copy dma_mask from parent device Date: Fri, 4 Apr 2025 16:31:24 +0200 Message-ID: <20250404143215.2281034-2-jens.wiklander@linaro.org> X-Mailer: git-send-email 2.43.0 In-Reply-To: <20250404143215.2281034-1-jens.wiklander@linaro.org> References: <20250404143215.2281034-1-jens.wiklander@linaro.org> Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable Content-Type: text/plain; charset="utf-8" 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 Reviewed-by: Sumit Garg --- drivers/tee/tee_core.c | 2 ++ 1 file changed, 2 insertions(+) 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_de= sc *teedesc, teedev->dev.class =3D &tee_class; teedev->dev.release =3D tee_release_device; teedev->dev.parent =3D dev; + if (dev) + teedev->dev.dma_mask =3D dev->dma_mask; =20 teedev->dev.devt =3D MKDEV(MAJOR(tee_devt), teedev->id); =20 --=20 2.43.0