netdev - [PATCH net-next 1/2] net_tstamp: define new flag HWTSTAMP_FLAG_BONDED_PHC

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Date:   Wed, 29 Dec 2021 16:09:37 +0800
From:   Hangbin Liu <liuhangbin@...il.com>
To:     netdev@...r.kernel.org
Cc:     Jay Vosburgh <j.vosburgh@...il.com>,
        Veaceslav Falico <vfalico@...il.com>,
        Andy Gospodarek <andy@...yhouse.net>,
        "David S . Miller" <davem@...emloft.net>,
        Jakub Kicinski <kuba@...nel.org>,
        Richard Cochran <richardcochran@...il.com>,
        Heiner Kallweit <hkallweit1@...il.com>,
        Hangbin Liu <liuhangbin@...il.com>
Subject: [PATCH net-next 1/2] net_tstamp: define new flag HWTSTAMP_FLAG_BONDED_PHC_INDEX

As we defined the new hwtstamp_config flag HWTSTAMP_FLAG_BONDED_PHC_INDEX
as enum, it's not easy for userspace program to check if the flag is
supported when build.

Let's define the new flag so user space could build it on old kernel with
ifdef check.

Fixes: 9c9211a3fc7a ("net_tstamp: add new flag HWTSTAMP_FLAG_BONDED_PHC_INDEX")
Signed-off-by: Hangbin Liu <liuhangbin@...il.com>
---
 include/uapi/linux/net_tstamp.h | 1 +
 1 file changed, 1 insertion(+)

diff --git a/include/uapi/linux/net_tstamp.h b/include/uapi/linux/net_tstamp.h
index e258e52cfd1f..55501e5e7ac8 100644
--- a/include/uapi/linux/net_tstamp.h
+++ b/include/uapi/linux/net_tstamp.h
@@ -87,6 +87,7 @@ enum hwtstamp_flags {
 	 * will be the PHC index.
 	 */
 	HWTSTAMP_FLAG_BONDED_PHC_INDEX = (1<<0),
+#define HWTSTAMP_FLAG_BONDED_PHC_INDEX	HWTSTAMP_FLAG_BONDED_PHC_INDEX
 
 	HWTSTAMP_FLAG_LAST = HWTSTAMP_FLAG_BONDED_PHC_INDEX,
 	HWTSTAMP_FLAG_MASK = (HWTSTAMP_FLAG_LAST - 1) | HWTSTAMP_FLAG_LAST
-- 
2.31.1