From: Jakub Kicinski <jakub.kicinski@netronome.com>
Date: Fri, 6 Sep 2019 22:29:57 -0700
Subject: net/tls: unref frags in order
Patch-mainline: v5.4-rc1
Git-commit: 7ccd451912dd6407957676ae584248bdadc97b38
References: bsc#1154353

It's generally more cache friendly to walk arrays in order,
especially those which are likely not in cache.

Signed-off-by: Jakub Kicinski <jakub.kicinski@netronome.com>
Reviewed-by: Dirk van der Merwe <dirk.vandermerwe@netronome.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Acked-by: Thomas Bogendoerfer <tbogendoerfer@suse.de>
---
 net/tls/tls_device.c |    9 +++------
 1 file changed, 3 insertions(+), 6 deletions(-)

--- a/net/tls/tls_device.c
+++ b/net/tls/tls_device.c
@@ -122,13 +122,10 @@ static struct net_device *get_netdev_for
 
 static void destroy_record(struct tls_record_info *record)
 {
-	int nr_frags = record->num_frags;
-	skb_frag_t *frag;
+	int i;
 
-	while (nr_frags-- > 0) {
-		frag = &record->frags[nr_frags];
-		__skb_frag_unref(frag);
-	}
+	for (i = 0; i < record->num_frags; i++)
+		__skb_frag_unref(&record->frags[i]);
 	kfree(record);
 }