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authorJakub Kicinski <kuba@kernel.org>2021-11-02 15:02:36 -0700
committerDavid S. Miller <davem@davemloft.net>2021-11-03 11:20:45 +0000
commit1aabe578dd86e9f2867c4db4fba9a15f4ba1825d (patch)
tree4429f5c426d59b7935ace911ca4e77eb32a133a8 /include/linux/ethtool_netlink.h
parent9b65b17db72313b7a4fe9bc9502928c88be57986 (diff)
ethtool: fix ethtool msg len calculation for pause stats
ETHTOOL_A_PAUSE_STAT_MAX is the MAX attribute id, so we need to subtract non-stats and add one to get a count (IOW -2+1 == -1). Otherwise we'll see: ethnl cmd 21: calculated reply length 40, but consumed 52 Fixes: 9a27a33027f2 ("ethtool: add standard pause stats") Signed-off-by: Jakub Kicinski <kuba@kernel.org> Reviewed-by: Saeed Mahameed <saeedm@nvidia.com> Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'include/linux/ethtool_netlink.h')
-rw-r--r--include/linux/ethtool_netlink.h3
1 files changed, 3 insertions, 0 deletions
diff --git a/include/linux/ethtool_netlink.h b/include/linux/ethtool_netlink.h
index 1e7bf78cb382..aba348d58ff6 100644
--- a/include/linux/ethtool_netlink.h
+++ b/include/linux/ethtool_netlink.h
@@ -10,6 +10,9 @@
#define __ETHTOOL_LINK_MODE_MASK_NWORDS \
DIV_ROUND_UP(__ETHTOOL_LINK_MODE_MASK_NBITS, 32)
+#define ETHTOOL_PAUSE_STAT_CNT (__ETHTOOL_A_PAUSE_STAT_CNT - \
+ ETHTOOL_A_PAUSE_STAT_TX_FRAMES)
+
enum ethtool_multicast_groups {
ETHNL_MCGRP_MONITOR,
};