From: Alex Elder <elder@linaro.org>
Date: Fri, 15 May 2020 19:52:03 +0000 (-0500)
Subject: net: ipa: don't be a hog in gsi_channel_poll()
X-Git-Tag: v5.15~3831^2~44
X-Git-Url: http://review.tizen.org/git/?a=commitdiff_plain;h=f45a7bccdc190e2cf6ca3a527edbc4c80d7114ef;p=platform%2Fkernel%2Flinux-starfive.git

net: ipa: don't be a hog in gsi_channel_poll()

The iteration count value used in gsi_channel_poll() is intended to
limit poll iterations to the budget supplied as an argument.  But
it's never updated.

Fix this bug by incrementing the count each time through the loop.

Reported-by: Sharath Chandra Vurukala <sharathv@codeaurora.com>
Signed-off-by: Alex Elder <elder@linaro.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
---

diff --git a/drivers/net/ipa/gsi.c b/drivers/net/ipa/gsi.c
index b671bea..8d9ca1c 100644
--- a/drivers/net/ipa/gsi.c
+++ b/drivers/net/ipa/gsi.c
@@ -1392,6 +1392,7 @@ static int gsi_channel_poll(struct napi_struct *napi, int budget)
 	while (count < budget) {
 		struct gsi_trans *trans;
 
+		count++;
 		trans = gsi_channel_poll_one(channel);
 		if (!trans)
 			break;