6.6-stable review patch. If anyone has any objections, please let me know.
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From: Sankararaman Jayaraman sankararaman.jayaraman@broadcom.com
commit 0dd765fae295832934bf28e45dd5a355e0891ed4 upstream.
vmxnet3 does not unregister xdp rxq info in the vmxnet3_reset_work() code path as vmxnet3_rq_destroy() is not invoked in this code path. So, we get below message with a backtrace.
Missing unregister, handled but fix driver WARNING: CPU:48 PID: 500 at net/core/xdp.c:182 __xdp_rxq_info_reg+0x93/0xf0
This patch fixes the problem by moving the unregister code of XDP from vmxnet3_rq_destroy() to vmxnet3_rq_cleanup().
Fixes: 54f00cce1178 ("vmxnet3: Add XDP support.") Signed-off-by: Sankararaman Jayaraman sankararaman.jayaraman@broadcom.com Signed-off-by: Ronak Doshi ronak.doshi@broadcom.com Link: https://patch.msgid.link/20250320045522.57892-1-sankararaman.jayaraman@broad... Signed-off-by: Jakub Kicinski kuba@kernel.org [ Ajay: Modified to apply on v6.6, v6.12 ] Signed-off-by: Ajay Kaher ajay.kaher@broadcom.com Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org --- drivers/net/vmxnet3/vmxnet3_drv.c | 10 +++++----- 1 file changed, 5 insertions(+), 5 deletions(-)
--- a/drivers/net/vmxnet3/vmxnet3_drv.c +++ b/drivers/net/vmxnet3/vmxnet3_drv.c @@ -1981,6 +1981,11 @@ vmxnet3_rq_cleanup(struct vmxnet3_rx_que
rq->comp_ring.gen = VMXNET3_INIT_GEN; rq->comp_ring.next2proc = 0; + + if (xdp_rxq_info_is_reg(&rq->xdp_rxq)) + xdp_rxq_info_unreg(&rq->xdp_rxq); + page_pool_destroy(rq->page_pool); + rq->page_pool = NULL; }
@@ -2021,11 +2026,6 @@ static void vmxnet3_rq_destroy(struct vm } }
- if (xdp_rxq_info_is_reg(&rq->xdp_rxq)) - xdp_rxq_info_unreg(&rq->xdp_rxq); - page_pool_destroy(rq->page_pool); - rq->page_pool = NULL; - if (rq->data_ring.base) { dma_free_coherent(&adapter->pdev->dev, rq->rx_ring[0].size * rq->data_ring.desc_size,