From: Catherine Sullivan <csully@google.com>
Date: Mon, 11 Oct 2021 08:36:50 -0700
Subject: gve: Track RX buffer allocation failures
Patch-mainline: v5.16-rc1
Git-commit: 1b4d1c9bab091ac6e20a3ff80c30c5cefe192bf4
References: bsc#1191655

The rx_buf_alloc_fail counter wasn't getting updated.

Fixes: 433e274b8f7b0 ("gve: Add stats for gve.")
Signed-off-by: Catherine Sullivan <csully@google.com>
Signed-off-by: Jeroen de Borst <jeroendb@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Acked-by: Thomas Bogendoerfer <tbogendoerfer@suse.de>
---
 drivers/net/ethernet/google/gve/gve_rx.c |    7 ++++++-
 1 file changed, 6 insertions(+), 1 deletion(-)

--- a/drivers/net/ethernet/google/gve/gve_rx.c
+++ b/drivers/net/ethernet/google/gve/gve_rx.c
@@ -532,8 +532,13 @@ static bool gve_rx_refill_buffers(struct
 
 				gve_rx_free_buffer(dev, page_info, data_slot);
 				page_info->page = NULL;
-				if (gve_rx_alloc_buffer(priv, dev, page_info, data_slot))
+				if (gve_rx_alloc_buffer(priv, dev, page_info,
+							data_slot)) {
+					u64_stats_update_begin(&rx->statss);
+					rx->rx_buf_alloc_fail++;
+					u64_stats_update_end(&rx->statss);
 					break;
+				}
 			}
 		}
 		fill_cnt++;