netdev - Re: [PATCH -next] mt76: mt7915: Fix build error

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Date:   Fri, 22 May 2020 13:11:16 +0300
From:   Kalle Valo <kvalo@...eaurora.org>
To:     YueHaibing <yuehaibing@...wei.com>
Cc:     <nbd@....name>, <lorenzo.bianconi83@...il.com>,
        <ryder.lee@...iatek.com>, <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>, <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>
Subject: Re: [PATCH -next] mt76: mt7915: Fix build error

YueHaibing <yuehaibing@...wei.com> writes:

> 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>

I'm curious why I don't see this build error? I was about to send a pull
request to Dave, should I hold off the pull request due to this problem?

-- 
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