linux-kernel - [PATCH 5.15 42/43] slip: fix macro redefine warning

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Message-Id: <20220309155900.947237156@linuxfoundation.org>
Date:   Wed,  9 Mar 2022 17:00:26 +0100
From:   Greg Kroah-Hartman <gregkh@...uxfoundation.org>
To:     linux-kernel@...r.kernel.org
Cc:     Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        stable@...r.kernel.org, lkp@...el.com,
        Huang Pei <huangpei@...ngson.cn>,
        "David S. Miller" <davem@...emloft.net>,
        Guenter Roeck <linux@...ck-us.net>
Subject: [PATCH 5.15 42/43] slip: fix macro redefine warning

From: Huang Pei <huangpei@...ngson.cn>

commit e5b40668e930979bd1e82c7ed7c9029db635f0e4 upstream.

MIPS/IA64 define END as assembly function ending, which conflict
with END definition in slip.h, just undef it at first

Reported-by: lkp@...el.com
Signed-off-by: Huang Pei <huangpei@...ngson.cn>
Signed-off-by: David S. Miller <davem@...emloft.net>
Cc: Guenter Roeck <linux@...ck-us.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@...uxfoundation.org>
---
 drivers/net/slip/slip.h |    2 ++
 1 file changed, 2 insertions(+)

--- a/drivers/net/slip/slip.h
+++ b/drivers/net/slip/slip.h
@@ -40,6 +40,8 @@
 					   insmod -oslip_maxdev=nnn	*/
 #define SL_MTU		296		/* 296; I am used to 600- FvK	*/
 
+/* some arch define END as assembly function ending, just undef it */
+#undef	END
 /* SLIP protocol characters. */
 #define END             0300		/* indicates end of frame	*/
 #define ESC             0333		/* indicates byte stuffing	*/