net: ethtool: Add macro to clear a link mode setting

There are currently macros to set and test an ETHTOOL_LINK_MODE_ setting,
but not to clear one. Add a macro to clear an ETHTOOL_LINK_MODE_ setting.

Signed-off-by: Tom Lendacky <thomas.lendacky@amd.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

diff --git a/include/linux/ethtool.h b/include/linux/ethtool.h
index afdbb701fdb49e5322a1a989cad962648a10f3ca..4587a4c369232589fbbc77200ca3257440f850de 100644 (file)
--- a/include/linux/ethtool.h
+++ b/include/linux/ethtool.h
@@ -136,6 +136,17 @@ struct ethtool_link_ksettings {
 #define ethtool_link_ksettings_add_link_mode(ptr, name, mode)          \
        __set_bit(ETHTOOL_LINK_MODE_ ## mode ## _BIT, (ptr)->link_modes.name)
 
+/**
+ * ethtool_link_ksettings_del_link_mode - clear bit in link_ksettings
+ * link mode mask
+ *   @ptr : pointer to struct ethtool_link_ksettings
+ *   @name : one of supported/advertising/lp_advertising
+ *   @mode : one of the ETHTOOL_LINK_MODE_*_BIT
+ * (not atomic, no bound checking)
+ */
+#define ethtool_link_ksettings_del_link_mode(ptr, name, mode)          \
+       __clear_bit(ETHTOOL_LINK_MODE_ ## mode ## _BIT, (ptr)->link_modes.name)
+
 /**
  * ethtool_link_ksettings_test_link_mode - test bit in ksettings link mode mask
  *   @ptr : pointer to struct ethtool_link_ksettings