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Miller" , Udit Tiwari , Md Sadre Alam , Dmitry Baryshkov , Manivannan Sadhasivam , Stephan Gerhold , Bjorn Andersson , Peter Ujfalusi , Michal Simek , Frank Li Cc: dmaengine@vger.kernel.org, linux-doc@vger.kernel.org, linux-kernel@vger.kernel.org, linux-arm-msm@vger.kernel.org, linux-crypto@vger.kernel.org, linux-arm-kernel@lists.infradead.org, brgl@kernel.org, Bartosz Golaszewski , Bartosz Golaszewski X-Mailer: b4 0.14.2 X-Developer-Signature: v=1; a=openpgp-sha256; l=2295; i=bartosz.golaszewski@oss.qualcomm.com; h=from:subject:message-id; bh=V/kExSnp4gLekFUspVMuJp40Wa32cu/zESSu6vck61c=; b=owEBbQKS/ZANAwAKAQWdLsv/NoTDAcsmYgBpuV7wh7HuGH5/DCVeb0SkWUTqB0AF86dPpu7g/ 72XbdlMm+yJAjMEAAEKAB0WIQSR5RMt5bVGHXuiZfwFnS7L/zaEwwUCable8AAKCRAFnS7L/zaE w9XrD/9DdkZCvQqumSRBF+lrFXBsxZxYUgEXfN+mreAzhSLJYbs41bwA6vMJqx2u/xa74pIHcRI E6X2kn+0sMgaqUZUFnbGghcb8lvX6u0/D3PPxuDpMbrRK41KGkpWrVqK66I2pMLSGbGAGqrb3Jm riFP3OW34JDf85ETjMlsvsSkhvH1vQlbhjrb5zKwExnzF3ZhyFsp/Z6ykcJfudt7pgsz1e3Qnrs CxaJXHaW8VVAg700d6BOQcZJLJwiz8WZvl19u6ls+uZpp80IbSC0N+b9W3KzYGGpPJ7oC/UQeGj Rm3VYVFcUVta9/EolEJKIDs+GKNzfWUYN6/Xh6bRzLzhIWcU/QvdjfzCY73ViQd3x62jGrfst98 SiHa74zHS1wdck0v9ZVzg3z5qbhjH53km5ewIJS9LWxG/h4ttLL1HKFpunJMxnSa2p94VfYrwVc IloeSDr51fePrw3ldchplm+0St42EqZzB05sgomDRO+jcnCc3IqYuffFALsoFTEbOztegE1k8Bd KNWHtxAyws1j8ykk0purkFy/LdSOKOUiBw1G+wcFznNp4NrFZF7GhGcUYYfsjcuIpBsDc+aDk5W 3SAKF385mi9hge5rDMti7WMIqSN3jU/WMTo/z3CDmfJRSFJ8fRaNxrTssIqdHVODlc22dJWP9/N UtxRbRqtQMgBn9Q== X-Developer-Key: i=bartosz.golaszewski@oss.qualcomm.com; a=openpgp; fpr=169DEB6C0BC3C46013D2C79F11A72EA01471D772 X-Authority-Analysis: v=2.4 cv=fJ00HJae c=1 sm=1 tr=0 ts=69b95f01 cx=c_pps a=5HAIKLe1ejAbszaTRHs9Ug==:117 a=xqWC_Br6kY4A:10 a=IkcTkHD0fZMA:10 a=Yq5XynenixoA:10 a=s4-Qcg_JpJYA:10 a=VkNPw1HP01LnGYTKEx00:22 a=u7WPNUs3qKkmUXheDGA7:22 a=rJkE3RaqiGZ5pbrm-msn:22 a=VwQbUJbxAAAA:8 a=EUspDBNiAAAA:8 a=XeVHrwws4l7kqE2Ex6IA:9 a=QEXdDO2ut3YA:10 a=gYDTvv6II1OnSo0itH1n:22 X-Proofpoint-Spam-Details-Enc: AW1haW4tMjYwMzE3MDEyNCBTYWx0ZWRfXz5R1ZPimZI2Q GR0IPRvXdN8FHB/uWwXuUfaO0R6CnFTi+WeNVMmR7FfDb1pI6BMXwcl2rP9NePVIAKozV7lnc52 0qLhjvR6PDgryeyzvyXK+9r3fvK+/mJZEEsdyytTYUGColXgjOpQnZnc0LcjJwU8WXC2eqYHfsv 8DHW0tnZLX2WG/qu8IQ3GroupV8HokkTWlv927dPotx0vpdNUut99bZ4T/IpdSsO5hzJptzQgsb 5HbUs5kURX5vlkACGjKNSE8ovldb/wQ4UgAABGTrr6q50rYRuXjbkIvX3loM7Ivl4sUzD+CIvvm ZYZ3jcjYd7l6ILXUOQtNgzf0RnfjHRmR6CAXLsQZTpFMLMRCVzICuP7F03Ml5T06GVACaeYU0vk R3PqMAuNaSBBS7IE1nOrCEMNGff9QmbGdE5QQZ5J00SXI3ax+ATgRSRU2P6M08tlNtymacNFvxO 5AjdkYfP177Y5m8z8QA== X-Proofpoint-GUID: eO0mOZiVpb5gnc7K0H-11ayyV2tjvA8K X-Proofpoint-ORIG-GUID: eO0mOZiVpb5gnc7K0H-11ayyV2tjvA8K X-Proofpoint-Virus-Version: vendor=baseguard engine=ICAP:2.0.293,Aquarius:18.0.1143,Hydra:6.1.51,FMLib:17.12.100.49 definitions=2026-03-17_01,2026-03-17_01,2025-10-01_01 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 spamscore=0 clxscore=1015 malwarescore=0 suspectscore=0 phishscore=0 lowpriorityscore=0 priorityscore=1501 impostorscore=0 adultscore=0 bulkscore=0 classifier=typeunknown authscore=0 authtc= authcc= route=outbound adjust=0 reason=mlx scancount=1 engine=8.22.0-2603050001 definitions=main-2603170124 There's no reason for the instances of this struct to be modifiable. Constify the pointer in struct dma_async_tx_descriptor and all drivers currently using it. Reviewed-by: Manivannan Sadhasivam Signed-off-by: Bartosz Golaszewski --- drivers/dma/ti/k3-udma.c | 2 +- drivers/dma/xilinx/xilinx_dma.c | 2 +- include/linux/dmaengine.h | 2 +- 3 files changed, 3 insertions(+), 3 deletions(-) diff --git a/drivers/dma/ti/k3-udma.c b/drivers/dma/ti/k3-udma.c index c964ebfcf3b68d86e4bbc9b62bad2212f0ce3ee9..8a2f235b669aaf084a6f7b3e6b2= 3d06b04768608 100644 --- a/drivers/dma/ti/k3-udma.c +++ b/drivers/dma/ti/k3-udma.c @@ -3408,7 +3408,7 @@ static int udma_set_metadata_len(struct dma_async_tx_= descriptor *desc, return 0; } =20 -static struct dma_descriptor_metadata_ops metadata_ops =3D { +static const struct dma_descriptor_metadata_ops metadata_ops =3D { .attach =3D udma_attach_metadata, .get_ptr =3D udma_get_metadata_ptr, .set_len =3D udma_set_metadata_len, diff --git a/drivers/dma/xilinx/xilinx_dma.c b/drivers/dma/xilinx/xilinx_dm= a.c index b53292e02448fe528f1ae9ba33b4bcf408f89fd6..97b934ca54101ea699e3ab28d41= 9bed1b45dee4a 100644 --- a/drivers/dma/xilinx/xilinx_dma.c +++ b/drivers/dma/xilinx/xilinx_dma.c @@ -653,7 +653,7 @@ static void *xilinx_dma_get_metadata_ptr(struct dma_asy= nc_tx_descriptor *tx, return seg->hw.app; } =20 -static struct dma_descriptor_metadata_ops xilinx_dma_metadata_ops =3D { +static const struct dma_descriptor_metadata_ops xilinx_dma_metadata_ops = =3D { .get_ptr =3D xilinx_dma_get_metadata_ptr, }; =20 diff --git a/include/linux/dmaengine.h b/include/linux/dmaengine.h index 99efe2b9b4ea9844ca6161208362ef18ef111d96..92566c4c100e98f48750de21249= ae3b5de06c763 100644 --- a/include/linux/dmaengine.h +++ b/include/linux/dmaengine.h @@ -623,7 +623,7 @@ struct dma_async_tx_descriptor { void *callback_param; struct dmaengine_unmap_data *unmap; enum dma_desc_metadata_mode desc_metadata_mode; - struct dma_descriptor_metadata_ops *metadata_ops; + const struct dma_descriptor_metadata_ops *metadata_ops; #ifdef CONFIG_ASYNC_TX_ENABLE_CHANNEL_SWITCH struct dma_async_tx_descriptor *next; struct dma_async_tx_descriptor *parent; --=20 2.47.3