This is a note to let you know that I've just added the patch titled
net: macb: restore cmp registers on resume path
to the 5.4-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:
net-macb-restore-cmp-registers-on-resume-path.patch
and it can be found in the queue-5.4 subdirectory.
If you, or anyone else, feels it should not be added to the stable tree,
please let <stable@xxxxxxxxxxxxxxx> know about it.
commit b71094836f8e5c3bb1cb61fb2a7ec6308b7a1561
Author: Claudiu Beznea <claudiu.beznea@xxxxxxxxxxxxx>
Date: Fri Apr 2 15:42:53 2021 +0300
net: macb: restore cmp registers on resume path
[ Upstream commit a14d273ba15968495896a38b7b3399dba66d0270 ]
Restore CMP screener registers on resume path.
Fixes: c1e85c6ce57ef ("net: macb: save/restore the remaining registers and features")
Signed-off-by: Claudiu Beznea <claudiu.beznea@xxxxxxxxxxxxx>
Acked-by: Nicolas Ferre <nicolas.ferre@xxxxxxxxxxxxx>
Signed-off-by: David S. Miller <davem@xxxxxxxxxxxxx>
Signed-off-by: Sasha Levin <sashal@xxxxxxxxxx>
diff --git a/drivers/net/ethernet/cadence/macb_main.c b/drivers/net/ethernet/cadence/macb_main.c
index 3f74416bb874..bdef5b3dd848 100644
--- a/drivers/net/ethernet/cadence/macb_main.c
+++ b/drivers/net/ethernet/cadence/macb_main.c
@@ -2915,6 +2915,9 @@ static void gem_prog_cmp_regs(struct macb *bp, struct ethtool_rx_flow_spec *fs)
bool cmp_b = false;
bool cmp_c = false;
+ if (!macb_is_gem(bp))
+ return;
+
tp4sp_v = &(fs->h_u.tcp_ip4_spec);
tp4sp_m = &(fs->m_u.tcp_ip4_spec);
@@ -3286,6 +3289,7 @@ static void macb_restore_features(struct macb *bp)
{
struct net_device *netdev = bp->dev;
netdev_features_t features = netdev->features;
+ struct ethtool_rx_fs_item *item;
/* TX checksum offload */
macb_set_txcsum_feature(bp, features);
@@ -3294,6 +3298,9 @@ static void macb_restore_features(struct macb *bp)
macb_set_rxcsum_feature(bp, features);
/* RX Flow Filters */
+ list_for_each_entry(item, &bp->rx_fs_list.list, list)
+ gem_prog_cmp_regs(bp, &item->fs);
+
macb_set_rxflow_feature(bp, features);
}
