RDMA/hns: Compute HEM index in 64-bit in hns_roce_v2_set_hem()

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In hns_roce_v2_set_hem() the HEM address indices are computed from
i, j and k (the base-chunk_ba_num decomposition of the 32-bit
table_idx) in 32-bit arithmetic and then assigned to u64 fields.
The recombined value always equals table_idx and cannot exceed
U32_MAX, so this is not a reachable overflow and has no user-visible
impact. Declare i, j and k as u64 so the calculation is done in
64-bit and the pattern no longer trips static analyzers.

No functional change intended.

Found by Linux Verification Center (linuxtesting.org) with SVACE.

Suggested-by: David Laight <david.laight.linux@gmail.com>
Signed-off-by: Alexander Chesnokov <Alexander.Chesnokov@kaspersky.com>
Link: https://patch.msgid.link/20260709050327.3547237-1-Alexander.Chesnokov@kaspersky.com
Signed-off-by: Leon Romanovsky <leon@kernel.org>

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Alexander Chesnokov 2026-07-09 08:03:27 +03:00 • committed by Leon Romanovsky

parent 234895fa8b

commit 923e1cb4e5

1 changed files with 1 additions and 1 deletions

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drivers/infiniband/hw/hns/hns_roce_hw_v2.c

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