diff options
| author | Sven Auhagen <sven.auhagen@voleatech.de> | 2020-06-16 06:35:29 +0200 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2020-06-16 13:41:16 -0700 |
| commit | 807eaf99688ce162a98a7501477644782d4af098 (patch) | |
| tree | 1fb9b785a88c4e51a7603a50144b2dbd49220619 /drivers | |
| parent | 662051215c758ae8545451628816204ed6cd372d (diff) | |
| download | linux-807eaf99688ce162a98a7501477644782d4af098.tar.bz2 | |
mvpp2: remove module bugfix
The remove function does not destroy all
BM Pools when per cpu pool is active.
When reloading the mvpp2 as a module the BM Pools
are still active in hardware and due to the bug
have twice the size now old + new.
This eventually leads to a kernel crash.
v2:
* add Fixes tag
Fixes: 7d04b0b13b11 ("mvpp2: percpu buffers")
Signed-off-by: Sven Auhagen <sven.auhagen@voleatech.de>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'drivers')
| -rw-r--r-- | drivers/net/ethernet/marvell/mvpp2/mvpp2_main.c | 7 |
1 files changed, 5 insertions, 2 deletions
diff --git a/drivers/net/ethernet/marvell/mvpp2/mvpp2_main.c b/drivers/net/ethernet/marvell/mvpp2/mvpp2_main.c index 5d4ec95be869..24f4d8e0da98 100644 --- a/drivers/net/ethernet/marvell/mvpp2/mvpp2_main.c +++ b/drivers/net/ethernet/marvell/mvpp2/mvpp2_main.c @@ -5983,8 +5983,8 @@ static int mvpp2_remove(struct platform_device *pdev) { struct mvpp2 *priv = platform_get_drvdata(pdev); struct fwnode_handle *fwnode = pdev->dev.fwnode; + int i = 0, poolnum = MVPP2_BM_POOLS_NUM; struct fwnode_handle *port_fwnode; - int i = 0; mvpp2_dbgfs_cleanup(priv); @@ -5998,7 +5998,10 @@ static int mvpp2_remove(struct platform_device *pdev) destroy_workqueue(priv->stats_queue); - for (i = 0; i < MVPP2_BM_POOLS_NUM; i++) { + if (priv->percpu_pools) + poolnum = mvpp2_get_nrxqs(priv) * 2; + + for (i = 0; i < poolnum; i++) { struct mvpp2_bm_pool *bm_pool = &priv->bm_pools[i]; mvpp2_bm_pool_destroy(&pdev->dev, priv, bm_pool); |