[PATCH v2] wireguard (gcc13): move ULLs limits away from enum

[Jiri Slaby (SUSE)]

Since gcc13, each member of an enum has the same type as the enum [1]. And
that is inherited from its members. Provided these two:
  REKEY_AFTER_MESSAGES = 1ULL << 60
  REJECT_AFTER_MESSAGES = U64_MAX - COUNTER_WINDOW_SIZE - 1
the named type is unsigned long.

This generates warnings with gcc-13:
  error: format '%d' expects argument of type 'int', but argument 6 has type 'long unsigned int'

Define such high values as macros instead of in the enum. Note that
enums are not guaranteed to hold unsigned longs in any way.

And use BIT_ULL() for REKEY_AFTER_MESSAGES.

[1] https://gcc.gnu.org/bugzilla/show_bug.cgi?id=36113

Cc: Martin Liska <mliska at suse.cz>
Cc: "Jason A. Donenfeld" <Jason at zx2c4.com>
Cc: "David S. Miller" <davem at davemloft.net>
Cc: Eric Dumazet <edumazet at google.com>
Cc: Jakub Kicinski <kuba at kernel.org>
Cc: Paolo Abeni <pabeni at redhat.com>
Cc: wireguard at lists.zx2c4.com
Cc: netdev at vger.kernel.org
Signed-off-by: Jiri Slaby (SUSE) <jirislaby at kernel.org>
---

Notes:
    [v2] move the constant out of enum (David)

 drivers/net/wireguard/messages.h | 5 +++--
 1 file changed, 3 insertions(+), 2 deletions(-)

diff --git a/drivers/net/wireguard/messages.h b/drivers/net/wireguard/messages.h
index 208da72673fc..048125bdcd23 100644
--- a/drivers/net/wireguard/messages.h
+++ b/drivers/net/wireguard/messages.h
@@ -37,9 +37,10 @@ enum counter_values {
 	COUNTER_WINDOW_SIZE = COUNTER_BITS_TOTAL - COUNTER_REDUNDANT_BITS
 };
 
+#define REKEY_AFTER_MESSAGES	BIT_ULL(60)
+#define REJECT_AFTER_MESSAGES	(U64_MAX - COUNTER_WINDOW_SIZE - 1)
+
 enum limits {
-	REKEY_AFTER_MESSAGES = 1ULL << 60,
-	REJECT_AFTER_MESSAGES = U64_MAX - COUNTER_WINDOW_SIZE - 1,
 	REKEY_TIMEOUT = 5,
 	REKEY_TIMEOUT_JITTER_MAX_JIFFIES = HZ / 3,
 	REKEY_AFTER_TIME = 120,
-- 
2.38.1