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authorDavid Decotigny <decot@google.com>2011-04-27 18:32:38 +0000
committerDavid S. Miller <davem@davemloft.net>2011-04-29 14:01:30 -0700
commit8ae6daca85c8bbd6a32c382db5e2a2a989f8bed2 (patch)
tree0c85476c2af6568c3d3a73a960d582d2f91a1256 /drivers/net/mii.c
parent36504605432996590f889e33d47e2d9c581f7569 (diff)
ethtool: Call ethtool's get/set_settings callbacks with cleaned data
This makes sure that when a driver calls the ethtool's get/set_settings() callback of another driver, the data passed to it is clean. This guarantees that speed_hi will be zeroed correctly if the called callback doesn't explicitely set it: we are sure we don't get a corrupted speed from the underlying driver. We also take care of setting the cmd field appropriately (ETHTOOL_GSET/SSET). This applies to dev_ethtool_get_settings(), which now makes sure it sets up that ethtool command parameter correctly before passing it to drivers. This also means that whoever calls dev_ethtool_get_settings() does not have to clean the ethtool command parameter. This function also becomes an exported symbol instead of an inline. All drivers visible to make allyesconfig under x86_64 have been updated. Signed-off-by: David Decotigny <decot@google.com> Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'drivers/net/mii.c')
-rw-r--r--drivers/net/mii.c3
1 files changed, 3 insertions, 0 deletions
diff --git a/drivers/net/mii.c b/drivers/net/mii.c
index 0a6c6a2e755..05acca78f63 100644
--- a/drivers/net/mii.c
+++ b/drivers/net/mii.c
@@ -58,6 +58,9 @@ static u32 mii_get_an(struct mii_if_info *mii, u16 addr)
* @mii: MII interface
* @ecmd: requested ethtool_cmd
*
+ * The @ecmd parameter is expected to have been cleared before calling
+ * mii_ethtool_gset().
+ *
* Returns 0 for success, negative on error.
*/
int mii_ethtool_gset(struct mii_if_info *mii, struct ethtool_cmd *ecmd)