[PATCH net 2/2] net: stmmac: Premature loop termination check was ignored

From: Jochen Henneberg
Date: Tue Mar 14 2023 - 09:14:02 EST


The premature loop termination check makes sense only in case of the
jump to read_again where the count may have been updated. But
read_again did not include the check.

Fixes: bba2556efad6 ("net: stmmac: Enable RX via AF_XDP zero-copy")
Signed-off-by: Jochen Henneberg <jh@xxxxxxxxxxxxxxxxxxxxxxxxxx>
---
drivers/net/ethernet/stmicro/stmmac/stmmac_main.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/net/ethernet/stmicro/stmmac/stmmac_main.c b/drivers/net/ethernet/stmicro/stmmac/stmmac_main.c
index ea51c7c93101..4886668a54c5 100644
--- a/drivers/net/ethernet/stmicro/stmmac/stmmac_main.c
+++ b/drivers/net/ethernet/stmicro/stmmac/stmmac_main.c
@@ -5031,10 +5031,10 @@ static int stmmac_rx_zc(struct stmmac_priv *priv, int limit, u32 queue)
len = 0;
}

+read_again:
if (count >= limit)
break;

-read_again:
buf1_len = 0;
entry = next_entry;
buf = &rx_q->buf_pool[entry];
--
2.39.2