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Date:   Fri, 22 May 2020 11:45:33 +0800
From:   YueHaibing <yuehaibing@...wei.com>
To:     <nbd@....name>, <lorenzo.bianconi83@...il.com>,
        <ryder.lee@...iatek.com>, <kvalo@...eaurora.org>,
        <davem@...emloft.net>, <kuba@...nel.org>, <matthias.bgg@...il.com>,
        <shayne.chen@...iatek.com>, <chih-min.chen@...iatek.com>,
        <yf.luo@...iatek.com>, <yiwei.chung@...iatek.com>
CC:     <linux-wireless@...r.kernel.org>, <netdev@...r.kernel.org>,
        <linux-arm-kernel@...ts.infradead.org>,
        <linux-mediatek@...ts.infradead.org>,
        <linux-kernel@...r.kernel.org>, YueHaibing <yuehaibing@...wei.com>
Subject: [PATCH -next] mt76: mt7915: Fix build error

In file included from ./include/linux/firmware.h:6:0,
                 from drivers/net/wireless/mediatek/mt76/mt7915/mcu.c:4:
In function ‘__mt7915_mcu_msg_send’,
    inlined from ‘mt7915_mcu_send_message’ at drivers/net/wireless/mediatek/mt76/mt7915/mcu.c:370:6:
./include/linux/compiler.h:396:38: error: call to ‘__compiletime_assert_545’ declared with attribute error: BUILD_BUG_ON failed: cmd == MCU_EXT_CMD_EFUSE_ACCESS && mcu_txd->set_query != MCU_Q_QUERY
  _compiletime_assert(condition, msg, __compiletime_assert_, __COUNTER__)
                                      ^
./include/linux/compiler.h:377:4: note: in definition of macro ‘__compiletime_assert’
    prefix ## suffix();    \
    ^~~~~~
./include/linux/compiler.h:396:2: note: in expansion of macro ‘_compiletime_assert’
  _compiletime_assert(condition, msg, __compiletime_assert_, __COUNTER__)
  ^~~~~~~~~~~~~~~~~~~
./include/linux/build_bug.h:39:37: note: in expansion of macro ‘compiletime_assert’
 #define BUILD_BUG_ON_MSG(cond, msg) compiletime_assert(!(cond), msg)
                                     ^~~~~~~~~~~~~~~~~~
./include/linux/build_bug.h:50:2: note: in expansion of macro ‘BUILD_BUG_ON_MSG’
  BUILD_BUG_ON_MSG(condition, "BUILD_BUG_ON failed: " #condition)
  ^~~~~~~~~~~~~~~~
drivers/net/wireless/mediatek/mt76/mt7915/mcu.c:280:2: note: in expansion of macro ‘BUILD_BUG_ON’
  BUILD_BUG_ON(cmd == MCU_EXT_CMD_EFUSE_ACCESS &&
  ^~~~~~~~~~~~

BUILD_BUG_ON is meaningless here, chang it to WARN_ON.

Fixes: e57b7901469f ("mt76: add mac80211 driver for MT7915 PCIe-based chipsets")
Signed-off-by: YueHaibing <yuehaibing@...wei.com>
---
 drivers/net/wireless/mediatek/mt76/mt7915/mcu.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/net/wireless/mediatek/mt76/mt7915/mcu.c b/drivers/net/wireless/mediatek/mt76/mt7915/mcu.c
index f00ad2b66761..99eeea42478f 100644
--- a/drivers/net/wireless/mediatek/mt76/mt7915/mcu.c
+++ b/drivers/net/wireless/mediatek/mt76/mt7915/mcu.c
@@ -277,8 +277,8 @@ static int __mt7915_mcu_msg_send(struct mt7915_dev *dev, struct sk_buff *skb,
 	}
 
 	mcu_txd->s2d_index = MCU_S2D_H2N;
-	BUILD_BUG_ON(cmd == MCU_EXT_CMD_EFUSE_ACCESS &&
-		     mcu_txd->set_query != MCU_Q_QUERY);
+	WARN_ON(cmd == MCU_EXT_CMD_EFUSE_ACCESS &&
+		mcu_txd->set_query != MCU_Q_QUERY);
 
 exit:
 	if (wait_seq)
-- 
2.17.1


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