[PATCH 5.10 037/103] enetc: Fix uninitialized struct dim_sample field usage

[Greg Kroah-Hartman]

From: Claudiu Manoil <claudiu.manoil@xxxxxxx>

[ Upstream commit 9f7afa05c9522b086327929ae622facab0f0f72b ]

The only struct dim_sample member that does not get
initialized by dim_update_sample() is comp_ctr. (There
is special API to initialize comp_ctr:
dim_update_sample_with_comps(), and it is currently used
only for RDMA.) comp_ctr is used to compute curr_stats->cmps
and curr_stats->cpe_ratio (see dim_calc_stats()) which in
turn are consumed by the rdma_dim_*() API.  Therefore,
functionally, the net_dim*() API consumers are not affected.
Nevertheless, fix the computation of statistics based
on an uninitialized variable, even if the mentioned statistics
are not used at the moment.

Fixes: ae0e6a5d1627 ("enetc: Add adaptive interrupt coalescing")
Signed-off-by: Claudiu Manoil <claudiu.manoil@xxxxxxx>
Signed-off-by: David S. Miller <davem@xxxxxxxxxxxxx>
Signed-off-by: Sasha Levin <sashal@xxxxxxxxxx>
---
 drivers/net/ethernet/freescale/enetc/enetc.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/net/ethernet/freescale/enetc/enetc.c b/drivers/net/ethernet/freescale/enetc/enetc.c
index 6877f8e2047b..15aa3b3c0089 100644
--- a/drivers/net/ethernet/freescale/enetc/enetc.c
+++ b/drivers/net/ethernet/freescale/enetc/enetc.c
@@ -299,7 +299,7 @@ static void enetc_rx_dim_work(struct work_struct *w)
 
 static void enetc_rx_net_dim(struct enetc_int_vector *v)
 {
-	struct dim_sample dim_sample;
+	struct dim_sample dim_sample = {};
 
 	v->comp_cnt++;
 
-- 
2.33.0