This is a note to let you know that I've just added the patch titled
ionic: no rx flush in deinit
to the 5.9-stable tree which can be found at:
http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary
The filename of the patch is:
ionic-no-rx-flush-in-deinit.patch
and it can be found in the queue-5.9 subdirectory.
If you, or anyone else, feels it should not be added to the stable tree,
please let <stable@xxxxxxxxxxxxxxx> know about it.
commit 056b679b4fe88041cbe0e83a3898eee772822837
Author: Sasha Levin <sashal@xxxxxxxxxx>
Date: Sun Nov 1 12:30:42 2020 -0500
ionic: no rx flush in deinit
[ Upstream commit 43ecf7b46f2688fd37909801aee264f288b3917b ]
Kmemleak pointed out to us that ionic_rx_flush() is sending
skbs into napi_gro_XXX with a disabled napi context, and these
end up getting lost and leaked. We can safely remove the flush.
Fixes: 0f3154e6bcb3 ("ionic: Add Tx and Rx handling")
Signed-off-by: Shannon Nelson <snelson@xxxxxxxxxxx>
Signed-off-by: Jakub Kicinski <kuba@xxxxxxxxxx>
Signed-off-by: Sasha Levin <sashal@xxxxxxxxxx>
diff --git a/drivers/net/ethernet/pensando/ionic/ionic_lif.c b/drivers/net/ethernet/pensando/ionic/ionic_lif.c
index 26988ad7ec979..8867d4ac871c1 100644
--- a/drivers/net/ethernet/pensando/ionic/ionic_lif.c
+++ b/drivers/net/ethernet/pensando/ionic/ionic_lif.c
@@ -1512,7 +1512,6 @@ static void ionic_txrx_deinit(struct ionic_lif *lif)
if (lif->rxqcqs) {
for (i = 0; i < lif->nxqs; i++) {
ionic_lif_qcq_deinit(lif, lif->rxqcqs[i].qcq);
- ionic_rx_flush(&lif->rxqcqs[i].qcq->cq);
ionic_rx_empty(&lif->rxqcqs[i].qcq->q);
}
}
diff --git a/drivers/net/ethernet/pensando/ionic/ionic_txrx.c b/drivers/net/ethernet/pensando/ionic/ionic_txrx.c
index def65fee27b5a..39e85870c15e9 100644
--- a/drivers/net/ethernet/pensando/ionic/ionic_txrx.c
+++ b/drivers/net/ethernet/pensando/ionic/ionic_txrx.c
@@ -253,19 +253,6 @@ static bool ionic_rx_service(struct ionic_cq *cq, struct ionic_cq_info *cq_info)
return true;
}
-void ionic_rx_flush(struct ionic_cq *cq)
-{
- struct ionic_dev *idev = &cq->lif->ionic->idev;
- u32 work_done;
-
- work_done = ionic_cq_service(cq, cq->num_descs,
- ionic_rx_service, NULL, NULL);
-
- if (work_done)
- ionic_intr_credits(idev->intr_ctrl, cq->bound_intr->index,
- work_done, IONIC_INTR_CRED_RESET_COALESCE);
-}
-
static struct page *ionic_rx_page_alloc(struct ionic_queue *q,
dma_addr_t *dma_addr)
{
diff --git a/drivers/net/ethernet/pensando/ionic/ionic_txrx.h b/drivers/net/ethernet/pensando/ionic/ionic_txrx.h
index a5883be0413f6..7667b72232b8a 100644
--- a/drivers/net/ethernet/pensando/ionic/ionic_txrx.h
+++ b/drivers/net/ethernet/pensando/ionic/ionic_txrx.h
@@ -4,7 +4,6 @@
#ifndef _IONIC_TXRX_H_
#define _IONIC_TXRX_H_
-void ionic_rx_flush(struct ionic_cq *cq);
void ionic_tx_flush(struct ionic_cq *cq);
void ionic_rx_fill(struct ionic_queue *q);
