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authorBen Hutchings <ben@decadent.org.uk>2014-05-15 01:41:23 +0100
committerNitin Garg <nitin.garg@freescale.com>2015-09-17 08:59:40 -0500
commita665892828c5db73cee577b56b51db07f63546c1 (patch)
treebd2ce19a8137bf0822210855120819dfee6429ac /net
parent04e53677837a307065edc6ad2fb0e08cc8fa0c1d (diff)
ethtool: Name the 'no change' value for setting RSS hash key but not indir table
We usually allocate special values of u32 fields starting from the top down, so also change the value to 0xffffffff. As these operations haven't been included in a stable release yet, it's not too late to change. Signed-off-by: Ben Hutchings <ben@decadent.org.uk>
Diffstat (limited to 'net')
-rw-r--r--net/core/ethtool.c12
1 files changed, 7 insertions, 5 deletions
diff --git a/net/core/ethtool.c b/net/core/ethtool.c
index d47a6f6b52fe..ac4728e4d689 100644
--- a/net/core/ethtool.c
+++ b/net/core/ethtool.c
@@ -802,12 +802,13 @@ static noinline_for_stack int ethtool_set_rxfh(struct net_device *dev,
/* If either indir or hash key is valid, proceed further.
*/
- if ((user_indir_size && ((user_indir_size != 0xDEADBEEF) &&
- user_indir_size != dev_indir_size)) ||
+ if ((user_indir_size &&
+ user_indir_size != ETH_RXFH_INDIR_NO_CHANGE &&
+ user_indir_size != dev_indir_size) ||
(user_key_size && (user_key_size != dev_key_size)))
return -EINVAL;
- if (user_indir_size != 0xDEADBEEF)
+ if (user_indir_size != ETH_RXFH_INDIR_NO_CHANGE)
indir_bytes = dev_indir_size * sizeof(indir[0]);
rss_config = kzalloc(indir_bytes + user_key_size, GFP_USER);
@@ -820,9 +821,10 @@ static noinline_for_stack int ethtool_set_rxfh(struct net_device *dev,
goto out;
/* user_indir_size == 0 means reset the indir table to default.
- * user_indir_size == 0xDEADBEEF means indir setting is not requested.
+ * user_indir_size == ETH_RXFH_INDIR_NO_CHANGE means leave it unchanged.
*/
- if (user_indir_size && user_indir_size != 0xDEADBEEF) {
+ if (user_indir_size &&
+ user_indir_size != ETH_RXFH_INDIR_NO_CHANGE) {
indir = (u32 *)rss_config;
ret = ethtool_copy_validate_indir(indir,
useraddr + rss_cfg_offset,