net: hibmcge: fix incorrect statistics update issue

When the user dumps statistics, the hibmcge driver automatically
updates all statistics. If the driver is performing the reset operation,
the error data of 0xFFFFFFFF is updated.

Therefore, if the driver is resetting, the hbg_update_stats_by_info()
needs to return directly.

Fixes: c0bf9bf31e79 ("net: hibmcge: Add support for dump statistics")
Signed-off-by: Jijie Shao <shaojijie@huawei.com>
Reviewed-by: Simon Horman <horms@kernel.org>
Link: https://patch.msgid.link/20250517095828.1763126-2-shaojijie@huawei.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>

diff --git a/drivers/net/ethernet/hisilicon/hibmcge/hbg_ethtool.c b/drivers/net/ethernet/hisilicon/hibmcge/hbg_ethtool.c
index 8f1107b..5552005 100644 (file)
--- a/drivers/net/ethernet/hisilicon/hibmcge/hbg_ethtool.c
+++ b/drivers/net/ethernet/hisilicon/hibmcge/hbg_ethtool.c
@@ -317,6 +317,9 @@ static void hbg_update_stats_by_info(struct hbg_priv *priv,
        const struct hbg_ethtool_stats *stats;
        u32 i;
 
+       if (test_bit(HBG_NIC_STATE_RESETTING, &priv->state))
+               return;
+
        for (i = 0; i < info_len; i++) {
                stats = &info[i];
                if (!stats->reg)