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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/NoTDAcsmYgBpwVl6QfTigBEi1Zc5gOSQ9IftU0OPPEl1W3ef7 b6wcRCD/YSJAjMEAAEKAB0WIQSR5RMt5bVGHXuiZfwFnS7L/zaEwwUCacFZegAKCRAFnS7L/zaE w7Y2D/0QKbhZRYhcMhr69xVe85Z4XZd02OV9nYgjGvsH6bUYJa1RxEGRohMY8QLlrjoi8dFTyZw y7SqGmySgWNrbtzUjCRF/rJbr+0z8tlL1uE0fXfSCld0aYhvT93+BeMEhlk+tckz0LWuW0uaee/ mKusUzi/sh2bEJpAjpij6K+bwblInYCOFdR6p/RG+1HVPJ0weGr76HH8rrgOycsWu3gtMD2xpSY zxJnT+ReClDG02MzCZfNv+Q5jD7SFU0yjFwFa0Nd8fudUegf2ILPprAU9+Kx/vshFlFxtSivu+u oOnQlwXYPqnwDCt2/52K/AVSb+QhONewfHIyllbjitznnPIv50Rv2MfSUtTxFuEI8LJFz0afL+l cVNRXJnIdt52impuo1GsO8S3/tyL8NTHjmnIPkmGK02GUfN53nWfK0pDgkDKsRg0ISUCkO8gCsh PQ+7Tc1nSxwQC1yE0N1jJbVbp2er9B1MURyjzb3GqzHya/HK521+qtDiS/+7N2rxxvezdGvrbFj 4zxOaacXAnRs93zIFxwUM5Z1IRbPVtF59BJVaAK+KBK+mUaqU+9bTkc2/Z3hHyS5DN6zC/NQCpe xmXWa4AXrXh6bGJW8geiOsq/lgT91X27oOYCn/cqA//2OSdafTRgI00nDZqmoGy21SVj3vo+2kH 9CbBw4h43fR+nyw== X-Developer-Key: i=bartosz.golaszewski@oss.qualcomm.com; a=openpgp; fpr=169DEB6C0BC3C46013D2C79F11A72EA01471D772 X-Proofpoint-Spam-Details-Enc: AW1haW4tMjYwMzIzMDExOCBTYWx0ZWRfX24bmPbicT/zA DgX/4xXIGsS23RtkB28NxKk6lppixH7yZMRuNrtodPTRG7AM052j/mgwVaT7MEtB1copUQBQNuV L/p3Uv7LEx2uxjMV3svHe8u2wuSorZGyiyZN4wvxUmHVhCTgEZAp1/tou9fe5+rifksArBSFbx2 /dKqpjB/sUW1/oKvFTD6DOy72azxCzrZHYt0GxwxIr9ehlVm2AGfB2oOvUwGsfuh7mL8M22maxb Pw47wTl+rN9fBYgrftp5WFzCuVXTFJ9sW/4ryfJVvidGNpFSLUPM3+N3TUwxsEzyE/PeZegd1lD 8IOmBO9ey3MMkc+HpyM8KJzHcPwi9sYupuI+PrXXDd/F8B7mKTB4fgd/paj0olhpJ5wFeeKgem1 3vDQtqjQKQ4DiDoJwt92DVyAqcjm4w+nL3GupKy/p9TGmgNzYAhhBji23HuuA1jziHgWCofWRy2 EhLF0iaNuk3/Sz8f2NQ== X-Authority-Analysis: v=2.4 cv=eMoeTXp1 c=1 sm=1 tr=0 ts=69c1598a cx=c_pps a=R6oCqFB+Yf/t2GF8e0/dFg==:117 a=xqWC_Br6kY4A:10 a=IkcTkHD0fZMA:10 a=Yq5XynenixoA:10 a=s4-Qcg_JpJYA:10 a=VkNPw1HP01LnGYTKEx00:22 a=u7WPNUs3qKkmUXheDGA7:22 a=_glEPmIy2e8OvE2BGh3C:22 a=VwQbUJbxAAAA:8 a=EUspDBNiAAAA:8 a=XeVHrwws4l7kqE2Ex6IA:9 a=QEXdDO2ut3YA:10 a=TD8TdBvy0hsOASGTdmB-:22 X-Proofpoint-GUID: eSl17Xo5ycJeEsyoOHtrcKP7Ie4Ekmbq X-Proofpoint-ORIG-GUID: eSl17Xo5ycJeEsyoOHtrcKP7Ie4Ekmbq 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=2026-03-23_04,2026-03-23_01,2025-10-01_01 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 malwarescore=0 suspectscore=0 adultscore=0 lowpriorityscore=0 impostorscore=0 bulkscore=0 phishscore=0 spamscore=0 clxscore=1015 priorityscore=1501 classifier=typeunknown authscore=0 authtc= authcc= route=outbound adjust=0 reason=mlx scancount=1 engine=8.22.0-2603050001 definitions=main-2603230118 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