netdev - [PATCH net-next v1 11/14] net: ethtool: Add macro to clear a link mode setting

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Date:   Thu, 17 Aug 2017 19:03:44 -0500
From:   Tom Lendacky <thomas.lendacky@....com>
To:     netdev@...r.kernel.org
Cc:     David Miller <davem@...emloft.net>
Subject: [PATCH net-next v1 11/14] 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@....com>
---
 include/linux/ethtool.h |   11 +++++++++++
 1 file changed, 11 insertions(+)

diff --git a/include/linux/ethtool.h b/include/linux/ethtool.h
index afdbb70..4587a4c 100644
--- a/include/linux/ethtool.h
+++ b/include/linux/ethtool.h
@@ -137,6 +137,17 @@ struct ethtool_link_ksettings {
 	__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
  *   @name : one of supported/advertising/lp_advertising