Linux RDMA and InfiniBand development
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From: Jacob Moroni <jmoroni@google.com>
To: tatyana.e.nikolova@intel.com, jgg@ziepe.ca, leon@kernel.org
Cc: linux-rdma@vger.kernel.org, Jacob Moroni <jmoroni@google.com>
Subject: [PATCH rdma-next 2/2] RDMA/irdma: Drop unused SRQ table from resource memory
Date: Mon,  9 Nov 2026 20:25:25 +0000	[thread overview]
Message-ID: <20261109202525.2937295-2-jmoroni@google.com> (raw)
In-Reply-To: <20261109202525.2937295-1-jmoroni@google.com>

irdma_calc_mem_rsrc_size() reserves room for max_srq SRQ pointers at
the end of rf->mem_rsrc, but irdma_set_hw_rsrc() never sets up an SRQ
table there and nothing uses that memory. SRQs are looked up through
rf->srq_xa instead.

Remove the reservation so the allocation only covers what
irdma_set_hw_rsrc() actually carves out.

Signed-off-by: Jacob Moroni <jmoroni@google.com>
---
 drivers/infiniband/hw/irdma/hw.c | 1 -
 1 file changed, 1 deletion(-)

diff --git a/drivers/infiniband/hw/irdma/hw.c b/drivers/infiniband/hw/irdma/hw.c
index 3d755cca243f..db741afc80d5 100644
--- a/drivers/infiniband/hw/irdma/hw.c
+++ b/drivers/infiniband/hw/irdma/hw.c
@@ -2154,7 +2154,6 @@ static u32 irdma_calc_mem_rsrc_size(struct irdma_pci_f *rf)
 	rsrc_size += sizeof(unsigned long) * BITS_TO_LONGS(rf->max_mcg);
 	rsrc_size += sizeof(struct irdma_qp **) * rf->max_qp;
 	rsrc_size += sizeof(struct irdma_cq **) * rf->max_cq;
-	rsrc_size += sizeof(struct irdma_srq **) * rf->max_srq;
 
 	return rsrc_size;
 }
-- 
2.56.0.542.g3ef89b7020-goog


  reply	other threads:[~2026-11-09 20:25 UTC|newest]

Thread overview: 5+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2026-11-09 20:25 [PATCH rdma-next 1/2] RDMA/irdma: Fix potential UAF during SRQ limit AE handling Jacob Moroni
2026-11-09 20:25 ` Jacob Moroni [this message]
2026-11-09 20:30   ` [PATCH rdma-next 2/2] RDMA/irdma: Drop unused SRQ table from resource memory sashiko-bot
2026-11-09 20:35 ` [PATCH rdma-next 1/2] RDMA/irdma: Fix potential UAF during SRQ limit AE handling sashiko-bot
2026-11-09 20:37   ` Jacob Moroni

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