From eb6fba7555a812c07aa984fb9e8e9b151a65ca16 Mon Sep 17 00:00:00 2001
From: Jakub Kicinski <kuba@kernel.org>
Date: Mon, 17 Apr 2023 08:53:46 -0700
Subject: net: skbuff: hide wifi_acked when CONFIG_WIRELESS not set

Datacenter kernel builds will very likely not include WIRELESS,
so let them shave 2 bits off the skb by hiding the wifi fields.

Reviewed-by: Florian Fainelli <f.fainelli@gmail.com>
Reviewed-by: Eric Dumazet <edumazet@google.com>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Acked-by: Johannes Berg <johannes@sipsolutions.net>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
 include/linux/skbuff.h | 11 +++++++++++
 1 file changed, 11 insertions(+)

(limited to 'include/linux')

diff --git a/include/linux/skbuff.h b/include/linux/skbuff.h
index a823ec3aa326..513f03b23a73 100644
--- a/include/linux/skbuff.h
+++ b/include/linux/skbuff.h
@@ -953,8 +953,10 @@ struct sk_buff {
 
 	__u8			l4_hash:1;
 	__u8			sw_hash:1;
+#ifdef CONFIG_WIRELESS
 	__u8			wifi_acked_valid:1;
 	__u8			wifi_acked:1;
+#endif
 	__u8			no_fcs:1;
 	/* Indicates the inner headers are valid in the skbuff. */
 	__u8			encapsulation:1;
@@ -1187,6 +1189,15 @@ static inline unsigned int skb_napi_id(const struct sk_buff *skb)
 #endif
 }
 
+static inline bool skb_wifi_acked_valid(const struct sk_buff *skb)
+{
+#ifdef CONFIG_WIRELESS
+	return skb->wifi_acked_valid;
+#else
+	return 0;
+#endif
+}
+
 /**
  * skb_unref - decrement the skb's reference count
  * @skb: buffer
-- 
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