From bce7698e2e6565bb765bd0522337f29f5f312624 Mon Sep 17 00:00:00 2001 From: Haojie Li Date: Tue, 25 Aug 2026 18:08:45 +0800 Subject: drm/mediatek: Add missing IS_ERR check for ovl_adaptor platform device platform_device_register_data() can fail and return an ERR_PTR, but the return value is used without checking, leading to an invalid pointer being stored in ddp_comp[].dev and passed to component_match_add() and mtk_ddp_comp_init(), which could result in a kernel crash. Add an IS_ERR() check to jump to the error handling path on failure. Fixes: 0d9eee9118b7 ("drm/mediatek: Add drm ovl_adaptor sub driver for MT8195") Cc: stable@vger.kernel.org Signed-off-by: Haojie Li Reviewed-by: CK Hu Link: https://patchwork.kernel.org/project/linux-mediatek/patch/20260825100845.438893-1-lihaojie@kylinos.cn/ Signed-off-by: Chun-Kuang Hu --- include/uapi/rdma/irdma-abi.h | 135 ++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 135 insertions(+) create mode 100644 include/uapi/rdma/irdma-abi.h (limited to 'include/uapi/rdma/irdma-abi.h') diff --git a/include/uapi/rdma/irdma-abi.h b/include/uapi/rdma/irdma-abi.h new file mode 100644 index 000000000..38155affc --- /dev/null +++ b/include/uapi/rdma/irdma-abi.h @@ -0,0 +1,135 @@ +/* SPDX-License-Identifier: (GPL-2.0 WITH Linux-syscall-note) OR Linux-OpenIB */ +/* + * Copyright (c) 2006 - 2021 Intel Corporation. All rights reserved. + * Copyright (c) 2005 Topspin Communications. All rights reserved. + * Copyright (c) 2005 Cisco Systems. All rights reserved. + * Copyright (c) 2005 Open Grid Computing, Inc. All rights reserved. + */ + +#ifndef IRDMA_ABI_H +#define IRDMA_ABI_H + +#include + +/* irdma must support legacy GEN_1 i40iw kernel + * and user-space whose last ABI ver is 5 + */ +#define IRDMA_ABI_VER 5 + +enum irdma_memreg_type { + IRDMA_MEMREG_TYPE_MEM = 0, + IRDMA_MEMREG_TYPE_QP = 1, + IRDMA_MEMREG_TYPE_CQ = 2, + IRDMA_MEMREG_TYPE_SRQ = 3, +}; + +enum { + IRDMA_ALLOC_UCTX_USE_RAW_ATTR = 1 << 0, + IRDMA_ALLOC_UCTX_MIN_HW_WQ_SIZE = 1 << 1, + IRDMA_ALLOC_UCTX_MAX_HW_SRQ_QUANTA = 1 << 2, + IRDMA_SUPPORT_WQE_FORMAT_V2 = 1 << 3, +}; + +struct irdma_alloc_ucontext_req { + __u32 rsvd32; + __u8 userspace_ver; + __u8 rsvd8[3]; + __aligned_u64 comp_mask; +}; + +struct irdma_alloc_ucontext_resp { + __u32 max_pds; + __u32 max_qps; + __u32 wq_size; /* size of the WQs (SQ+RQ) in the mmaped area */ + __u8 kernel_ver; + __u8 rsvd[3]; + __aligned_u64 feature_flags; + __aligned_u64 db_mmap_key; + __u32 max_hw_wq_frags; + __u32 max_hw_read_sges; + __u32 max_hw_inline; + __u32 max_hw_rq_quanta; + __u32 max_hw_wq_quanta; + __u32 min_hw_cq_size; + __u32 max_hw_cq_size; + __u16 max_hw_sq_chunk; + __u8 hw_rev; + __u8 rsvd2; + __aligned_u64 comp_mask; + __u16 min_hw_wq_size; + __u8 revd3[2]; + __u32 max_hw_srq_quanta; +}; + +struct irdma_alloc_pd_resp { + __u32 pd_id; + __u8 rsvd[4]; +}; + +struct irdma_resize_cq_req { + __aligned_u64 user_cq_buffer; +}; + +struct irdma_create_cq_req { + __aligned_u64 user_cq_buf; + __aligned_u64 user_shadow_area; +}; + +struct irdma_create_srq_req { + __aligned_u64 user_srq_buf; + __aligned_u64 user_shadow_area; +}; + +struct irdma_create_srq_resp { + __u32 srq_id; + __u32 srq_size; +}; + +struct irdma_create_qp_req { + __aligned_u64 user_wqe_bufs; + __aligned_u64 user_compl_ctx; + __aligned_u64 legacy_dontuse[2]; +}; + +struct irdma_mem_reg_req { + __u16 reg_type; /* enum irdma_memreg_type */ + __u16 cq_pages; + __u16 rq_pages; + __u16 sq_pages; +}; + +struct irdma_modify_qp_req { + __u8 sq_flush; + __u8 rq_flush; + __u8 rsvd[6]; +}; + +struct irdma_create_cq_resp { + __u32 cq_id; + __u32 cq_size; +}; + +struct irdma_create_qp_resp { + __u32 qp_id; + __u32 actual_sq_size; + __u32 actual_rq_size; + __u32 irdma_drv_opt; + __u16 push_idx; + __u8 lsmm; + __u8 rsvd; + __u32 qp_caps; +}; + +struct irdma_modify_qp_resp { + __aligned_u64 push_wqe_mmap_key; + __aligned_u64 push_db_mmap_key; + __u16 push_offset; + __u8 push_valid; + __u8 rsvd[5]; +}; + +struct irdma_create_ah_resp { + __u32 ah_id; + __u8 rsvd[4]; +}; +#endif /* IRDMA_ABI_H */ -- cgit v1.3.1