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authorEric Dumazet <eric.dumazet@gmail.com>2011-02-16 03:48:38 +0000
committerDavid S. Miller <davem@davemloft.net>2011-02-22 10:12:01 -0800
commit28801f351f76231e8d1e378274d6d56a577b897e (patch)
treeaa33bee992280bb6c0f799692eac9cf9a22c24a0
parentfe29ec41aaa51902aebd63658dfb04fe6fea8be5 (diff)
sfc: lower stack usage in efx_ethtool_self_test
drivers/net/sfc/ethtool.c: In function ‘efx_ethtool_self_test’: drivers/net/sfc/ethtool.c:613: warning: the frame size of 1200 bytes is larger than 1024 bytes Signed-off-by: Eric Dumazet <eric.dumazet@gmail.com> Acked-by: Ben Hutchings <bhutchings@solarflare.com> Signed-off-by: David S. Miller <davem@davemloft.net>
-rw-r--r--drivers/net/sfc/ethtool.c22
1 files changed, 13 insertions, 9 deletions
diff --git a/drivers/net/sfc/ethtool.c b/drivers/net/sfc/ethtool.c
index 0e8bb19ed60..ca886d98bdc 100644
--- a/drivers/net/sfc/ethtool.c
+++ b/drivers/net/sfc/ethtool.c
@@ -569,9 +569,14 @@ static void efx_ethtool_self_test(struct net_device *net_dev,
struct ethtool_test *test, u64 *data)
{
struct efx_nic *efx = netdev_priv(net_dev);
- struct efx_self_tests efx_tests;
+ struct efx_self_tests *efx_tests;
int already_up;
- int rc;
+ int rc = -ENOMEM;
+
+ efx_tests = kzalloc(sizeof(*efx_tests), GFP_KERNEL);
+ if (!efx_tests)
+ goto fail;
+
ASSERT_RTNL();
if (efx->state != STATE_RUNNING) {
@@ -589,13 +594,11 @@ static void efx_ethtool_self_test(struct net_device *net_dev,
if (rc) {
netif_err(efx, drv, efx->net_dev,
"failed opening device.\n");
- goto fail2;
+ goto fail1;
}
}
- memset(&efx_tests, 0, sizeof(efx_tests));
-
- rc = efx_selftest(efx, &efx_tests, test->flags);
+ rc = efx_selftest(efx, efx_tests, test->flags);
if (!already_up)
dev_close(efx->net_dev);
@@ -604,10 +607,11 @@ static void efx_ethtool_self_test(struct net_device *net_dev,
rc == 0 ? "passed" : "failed",
(test->flags & ETH_TEST_FL_OFFLINE) ? "off" : "on");
- fail2:
- fail1:
+fail1:
/* Fill ethtool results structures */
- efx_ethtool_fill_self_tests(efx, &efx_tests, NULL, data);
+ efx_ethtool_fill_self_tests(efx, efx_tests, NULL, data);
+ kfree(efx_tests);
+fail:
if (rc)
test->flags |= ETH_TEST_FL_FAILED;
}