From nobody Mon Feb 9 08:54:59 2026 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 EA7D4274B42; Sun, 4 Jan 2026 13:52:01 +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=1767534722; cv=none; b=ck6N4a5ngPakEItb1PqKL1+qHmlcO7hcHvp5JGB3IfvYeIyiWkN+9rM6SEv3kOixKDxB6C2I+do9ib6TG2EuYF0pnhxZAtNQMOLfSNOlp9J5KLsP4YQaCYqcfZlyL1BIJe5IBtq+dMlDEz6D1CSCTcRB3wz9/jLAgNxEi5HmRLA= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1767534722; c=relaxed/simple; bh=08SYnLgqHKSF/4Y/EkzfgqxzPfpsQUrQNyDNPrDhd9k=; h=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version:Content-Type; b=dT2U6BWqP5LDBmPp4Uci4w1n6xN/MrqWvBCPLrMdv8IWVTeKOCXCYjupYMwvCU7mJHA4j4OrfWaX8RcHgL9jCcTPVG4nlg5lyO+vJQ+2XXiijetqoiI26ENShSlEuw2MnQaEt+JTbT5JwFGtnL5LetilOHoDdmXk4/HK1sjnvKg= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b=ZWX5g01G; 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="ZWX5g01G" Received: by smtp.kernel.org (Postfix) with ESMTPSA id F3E25C19423; Sun, 4 Jan 2026 13:52:00 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1767534721; bh=08SYnLgqHKSF/4Y/EkzfgqxzPfpsQUrQNyDNPrDhd9k=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=ZWX5g01GzZsZeTb4mzKUQknxgOFFfsmbOsnkfXfhiJCuG+uPsGrRvTSbcEt87TGnz 0Q4KESys5m8DQvWCPZXDY9gKTweR5+oY+8eUVEN7hAL1byODTTO/Vdb3DjC+ac92B8 9f2UAVW4aFnvYQDKH1oy6CXxfq9VglpEPwWmQYeoQydVzuGMvTFXgSPc5L75JvFooG z2VKEJgcXHU3WE6jy0T9LYXza4Cr8FuOG1ctxUmAM046Xw7wiZvKfTI2i6YYnKeQTn Hofxt9ObHeXWf7mH542LmEVIUhzSjFOayrB0HeS/F0ewZaOfHoyGsp7IHOJFmpCO8s NvcdjjLdLp1hw== From: Leon Romanovsky To: Jason Gunthorpe , Leon Romanovsky , Yishai Hadas , Chiara Meiohas , Michal Kalderon , Selvin Xavier Cc: linux-rdma@vger.kernel.org, linux-kernel@vger.kernel.org Subject: [PATCH rdma-next 4/6] RDMA/mlx5: Avoid direct access to DMA device pointer Date: Sun, 4 Jan 2026 15:51:36 +0200 Message-ID: <20260104-ib-core-misc-v1-4-00367f77f3a8@nvidia.com> X-Mailer: git-send-email 2.52.0 In-Reply-To: <20260104-ib-core-misc-v1-0-00367f77f3a8@nvidia.com> References: <20260104-ib-core-misc-v1-0-00367f77f3a8@nvidia.com> Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" X-Mailer: b4 0.15-dev-a6db3 Content-Transfer-Encoding: quoted-printable From: Leon Romanovsky The dma_device field is marked as internal and must not be accessed by drivers or ULPs. Remove all direct mlx5 references to this field. Signed-off-by: Leon Romanovsky Reviewed-by: Kalesh AP --- drivers/infiniband/hw/mlx5/mr.c | 11 ++++++----- 1 file changed, 6 insertions(+), 5 deletions(-) diff --git a/drivers/infiniband/hw/mlx5/mr.c b/drivers/infiniband/hw/mlx5/m= r.c index 325fa04cbe8a..a7b37e3df072 100644 --- a/drivers/infiniband/hw/mlx5/mr.c +++ b/drivers/infiniband/hw/mlx5/mr.c @@ -1646,10 +1646,13 @@ reg_user_mr_dmabuf(struct ib_pd *pd, struct device = *dma_device, offset, length, fd, access_flags, &mlx5_ib_dmabuf_attach_ops); - else + else if (dma_device) umem_dmabuf =3D ib_umem_dmabuf_get_pinned_with_dma_device(&dev->ib_dev, dma_device, offset, length, fd, access_flags); + else + umem_dmabuf =3D ib_umem_dmabuf_get_pinned( + &dev->ib_dev, offset, length, fd, access_flags); =20 if (IS_ERR(umem_dmabuf)) { mlx5_ib_dbg(dev, "umem_dmabuf get failed (%pe)\n", umem_dmabuf); @@ -1782,10 +1785,8 @@ struct ib_mr *mlx5_ib_reg_user_mr_dmabuf(struct ib_p= d *pd, u64 offset, return reg_user_mr_dmabuf_by_data_direct(pd, offset, length, virt_addr, fd, access_flags); =20 - return reg_user_mr_dmabuf(pd, pd->device->dma_device, - offset, length, virt_addr, - fd, access_flags, MLX5_MKC_ACCESS_MODE_MTT, - dmah); + return reg_user_mr_dmabuf(pd, NULL, offset, length, virt_addr, fd, + access_flags, MLX5_MKC_ACCESS_MODE_MTT, dmah); } =20 /* --=20 2.52.0