linux-kernel - [PATCH 6/6] mISDN: remove unused function

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Date:   Sat, 24 Sep 2016 13:28:02 +0800
From:   Baoyou Xie <baoyou.xie@...aro.org>
To:     isdn@...ux-pingi.de, davem@...emloft.net
Cc:     netdev@...r.kernel.org, linux-kernel@...r.kernel.org,
        arnd@...db.de, baoyou.xie@...aro.org, xie.baoyou@....com.cn
Subject: [PATCH 6/6] mISDN: remove unused function

We get 1 warning when building kernel with W=1:
drivers/isdn/mISDN/layer2.c:463:1: warning: no previous declaration for 'IsRR' [-Wmissing-declarations]

In fact, this function is called by no one and not exported,
so this patch removes it.

Signed-off-by: Baoyou Xie <baoyou.xie@...aro.org>
---
 drivers/isdn/mISDN/layer2.c | 9 ---------
 1 file changed, 9 deletions(-)

diff --git a/drivers/isdn/mISDN/layer2.c b/drivers/isdn/mISDN/layer2.c
index f6ab6027..2519510 100644
--- a/drivers/isdn/mISDN/layer2.c
+++ b/drivers/isdn/mISDN/layer2.c
@@ -459,15 +459,6 @@ IsDISC(u_char *data)
 	return (data[0] & 0xef) == DISC;
 }
 
-inline int
-IsRR(u_char *data, struct layer2 *l2)
-{
-	if (test_bit(FLG_MOD128, &l2->flag))
-		return data[0] == RR;
-	else
-		return (data[0] & 0xf) == 1;
-}
-
 static inline int
 IsSFrame(u_char *data, struct layer2 *l2)
 {
-- 
2.7.4