linux.git/include/rdma, branch v7.1-rc5

RDMA/core: Do not read wild stack memory in uverbs_get_handler_fn()

2026-05-19T22:32:48+00:00

Sashiko points out the legacy write path in ib_uverbs_write() does
allocate a struct uverbs_attr_bundle, but it doesn't wrap it in a
bundle_priv so downcasting here isn't safe.

Instead lift the method_elm out of the bundle_priv and use it for the
debug function. The legacy write path will leave it set as NULL since the
write method_elm uses a different type.

Cc: stable@vger.kernel.org
Fixes: 1de9287ece44 ("RDMA: Add ib_copy_validate_udata_in()")
Signed-off-by: Jason Gunthorpe 
Signed-off-by: Leon Romanovsky

RDMA/umem: Use consistent DMA attributes when unmapping entries

2026-03-30T17:47:45+00:00

The DMA API expects that mapping and unmapping use the same DMA
attributes. The RDMA umem code did not meet this requirement, so fix
the mismatch.

Fixes: f03d9fadfe13 ("RDMA/core: Add weak ordering dma attr to dma mapping")
Signed-off-by: Leon Romanovsky

RDMA: Properly propagate the number of CQEs as unsigned int

2026-03-30T17:47:44+00:00

Instead of checking whether the number of CQEs is negative or zero, fix the
.resize_user_cq() declaration to use unsigned int. This better reflects the
expected value range. The sanity check is then handled correctly in ib_uvbers.

Link: https://patch.msgid.link/20260319-resize_cq-cqe-v1-1-b78c6efc1def@nvidia.com
Reviewed-by: Zhu Yanjun 
Signed-off-by: Leon Romanovsky

RDMA: Clarify that CQ resize is a user‑space verb

2026-03-30T17:47:44+00:00

The CQ resize operation is used only by uverbs. Make this explicit.

Link: https://patch.msgid.link/20260318-resize_cq-type-v1-2-b2846ed18846@nvidia.com
Signed-off-by: Leon Romanovsky

RDMA/core: Remove unused ib_resize_cq() implementation

2026-03-30T17:47:43+00:00

There are no in-kernel users of the CQ resize functionality, so drop it.

Link: https://patch.msgid.link/20260318-resize_cq-type-v1-1-b2846ed18846@nvidia.com
Signed-off-by: Leon Romanovsky

RDMA/nldev: Add dellink function pointer

2026-03-30T17:47:43+00:00

Add a dellink function pointer to rdma_link_ops to
allow drivers to clean up resources created during
newlink.

Reviewed-by: David Ahern 
Signed-off-by: Zhu Yanjun 
Link: https://patch.msgid.link/20260313023058.13020-2-yanjun.zhu@linux.dev
Signed-off-by: Leon Romanovsky

RDMA/rdmavt: Add driver mmap callback

2026-03-11T19:17:28+00:00

Add a reserved range and a driver callback to allow the driver to
have custom mmaps.

Generated mmap offsets are cookies and are not related to the size of
the mmap.  Advance the mmap offset by the minimum, PAGE_SIZE, rather
than the size of the mmap.

Signed-off-by: Dean Luick 
Signed-off-by: Dennis Dalessandro 
Link: https://patch.msgid.link/177308909972.1279894.15543003811821875042.stgit@awdrv-04.cornelisnetworks.com
Signed-off-by: Leon Romanovsky

RDMA/rdmavt: Add ucontext alloc/dealloc passthrough

2026-03-11T19:17:28+00:00

Add a private data pointer to the ucontext structure and add
per-client pass-throughs.

Signed-off-by: Dean Luick 
Signed-off-by: Dennis Dalessandro 
Link: https://patch.msgid.link/177325008318.52243.7367786996925601681.stgit@awdrv-04.cornelisnetworks.com
Signed-off-by: Leon Romanovsky

RDMA/OPA: Update OPA link speed list

2026-03-11T19:17:28+00:00

Update the list of available link speeds.  Fix comments.

Signed-off-by: Dean Luick 
Signed-off-by: Dennis Dalessandro 
Link: https://patch.msgid.link/177308908456.1279894.16723781060261360236.stgit@awdrv-04.cornelisnetworks.com
Signed-off-by: Leon Romanovsky

RDMA/hfi1: Remove opa_vnic

2026-03-10T11:51:30+00:00

OPA Vnic has been abandoned and left to rot. Time to excise.

Signed-off-by: Dennis Dalessandro 
Link: https://patch.msgid.link/177308912950.1280237.15051663328388849915.stgit@awdrv-04.cornelisnetworks.com
Signed-off-by: Leon Romanovsky