diff mbox

cfg80211: Don't re-use the skb for larger NL messages.

Message ID 1433028275-9576-1-git-send-email-chaitanya.mgit@gmail.com (mailing list archive)
State Rejected
Headers show

Commit Message

Krishna Chaitanya May 30, 2015, 11:24 p.m. UTC 
This improves the time to get the DUMP response across to user space.
Signed-off-by: Chaitanya T K <chaitanya.mgit@gmail.com>
---
 net/wireless/nl80211.c | 4 ++++
 1 file changed, 4 insertions(+)

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diff mbox

Patch

diff --git a/net/wireless/nl80211.c b/net/wireless/nl80211.c
index c264eff..152bd0c 100644
--- a/net/wireless/nl80211.c
+++ b/net/wireless/nl80211.c
@@ -7636,6 +7636,10 @@  static int nl80211_testmode_dump(struct sk_buff *skb,
 		}
 
 		genlmsg_end(skb, hdr);
+
+		/* Don't re-use skb, when we know nla_put fails*/
+		if (skb->len > NLMSG_GOODSIZE / 2)
+			break;
 	}
 
 	err = skb->len;