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RDMA/bnxt_re: Reject GET_TOGGLE_MEM when toggle page was not allocated

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If a user calls BNXT_RE_METHOD_GET_TOGGLE_MEM on a device that does not
support the CQ/SRQ toggle feature, uctx_cq_page or uctx_srq_page will
be NULL.

Add an explicit -EOPNOTSUPP return after capturing the address from
uctx_cq_page / uctx_srq_page if the address is zero.

Fixes: e275919d96 ("RDMA/bnxt_re: Share a page to expose per CQ info with userspace")
Fixes: 181028a0d8 ("RDMA/bnxt_re: Share a page to expose per SRQ info with userspace")
Link: https://patch.msgid.link/r/20260615224751.232802-16-selvin.xavier@broadcom.com
Signed-off-by: Selvin Xavier <selvin.xavier@broadcom.com>
Signed-off-by: Jason Gunthorpe <jgg@nvidia.com>
This commit is contained in:
Selvin Xavier 2026-06-15 15:47:51 -07:00 committed by Jason Gunthorpe
parent a57592c639
commit 33a215f499
1 changed files with 4 additions and 0 deletions
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4
drivers/infiniband/hw/bnxt_re/uapi.c
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@ -277,6 +277,8 @@ static int UVERBS_HANDLER(BNXT_RE_METHOD_GET_TOGGLE_MEM)(struct uverbs_attr_bund
return -EINVAL;
addr = (u64)cq->uctx_cq_page;
if (!addr)
return -EOPNOTSUPP;
break;
case BNXT_RE_SRQ_TOGGLE_MEM:
srq = bnxt_re_search_for_srq(rdev, res_id);
@ -284,6 +286,8 @@ static int UVERBS_HANDLER(BNXT_RE_METHOD_GET_TOGGLE_MEM)(struct uverbs_attr_bund
return -EINVAL;
addr = (u64)srq->uctx_srq_page;
if (!addr)
return -EOPNOTSUPP;
break;
default: