diff options
| author | Jarek Poplawski <jarkao2@gmail.com> | 2008-12-16 15:42:20 -0800 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@suse.de> | 2009-01-14 09:44:07 -0800 |
| commit | 9d8ce36fb8cd27442e1b700f3068908a63de2fff (patch) | |
| tree | d74e04c113fc584ce4a9471f202dd0547f2ad0ab /drivers | |
| parent | 398604a3a6b864d7a09c67772a7d44cf88ce24a0 (diff) | |
drivers/net: starfire: Fix napi ->poll() weight handling
commit 9a3de25544dadab1971847f28f33b1cd0d1770a6 upstream.
starfire napi ->poll() handler can return work == weight after calling
netif_rx_complete() (if there is no more work). It is illegal and this
patch fixes it.
Reported-by: Alexander Huemer <alexander.huemer@sbg.ac.at>
Tested-by: Alexander Huemer <alexander.huemer@sbg.ac.at>
Signed-off-by: Jarek Poplawski <jarkao2@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Cc: Rafael J. Wysocki <rjw@sisk.pl>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Diffstat (limited to 'drivers')
| -rw-r--r-- | drivers/net/starfire.c | 5 |
1 files changed, 5 insertions, 0 deletions
diff --git a/drivers/net/starfire.c b/drivers/net/starfire.c index 1d2ef8f47780..5a40f2d78beb 100644 --- a/drivers/net/starfire.c +++ b/drivers/net/starfire.c @@ -1509,6 +1509,11 @@ static int __netdev_rx(struct net_device *dev, int *quota) desc->status = 0; np->rx_done = (np->rx_done + 1) % DONE_Q_SIZE; } + + if (*quota == 0) { /* out of rx quota */ + retcode = 1; + goto out; + } writew(np->rx_done, np->base + CompletionQConsumerIdx); out: |