[PATCH net] octeontx2-af: Fix BPID leak in nix_bp_enable()
From: <hidden>
Date: 2026-09-01 10:25:21
Also in:
lkml
Subsystem:
marvell octeontx2 rvu admin function driver, networking drivers, the rest · Maintainers:
Sunil Goutham, Ratheesh Kannoth, Geetha sowjanya, Subbaraya Sundeep, Andrew Lunn, "David S. Miller", Eric Dumazet, Jakub Kicinski, Paolo Abeni, Linus Torvalds
From: Rakesh Kudurumalla <redacted>
Avoid calling rvu_nix_get_bpid() after the last channel is programmed.
For LBK interfaces, each call allocates a BPID, so the extra final call
can leak one BPID.
Fixes: 27150bc4286c ("octeontx2-af: Interface backpressure configuration")
Signed-off-by: Nitin Shetty J <redacted>
Signed-off-by: Rakesh Kudurumalla <redacted>
---
drivers/net/ethernet/marvell/octeontx2/af/rvu_nix.c | 3 ++-
1 file changed, 2 insertions(+), 1 deletion(-)
diff --git a/drivers/net/ethernet/marvell/octeontx2/af/rvu_nix.c b/drivers/net/ethernet/marvell/octeontx2/af/rvu_nix.c
index b81c47ea023b..c6164da4caa6 100644
--- a/drivers/net/ethernet/marvell/octeontx2/af/rvu_nix.c
+++ b/drivers/net/ethernet/marvell/octeontx2/af/rvu_nix.c@@ -784,7 +784,8 @@ static int nix_bp_enable(struct rvu *rvu, rvu_write64(rvu, blkaddr, NIX_AF_RX_CHANX_CFG(chan_v), cfg | (bpid & GENMASK_ULL(8, 0)) | BIT_ULL(16)); chan_id++; - bpid = rvu_nix_get_bpid(rvu, req, type, chan_id); + if (chan_id < req->chan_cnt) + bpid = rvu_nix_get_bpid(rvu, req, type, chan_id); } for (chan = 0; chan < req->chan_cnt; chan++) {
--
2.48.1