From: "Toke Høiland-Jørgensen" <toke@redhat.com>
To: Kalle Valo <kvalo@codeaurora.org>
Cc: YueHaibing <yuehaibing@huawei.com>,
QCA ath9k Development <ath9k-devel@qca.qualcomm.com>,
linux-wireless@vger.kernel.org, netdev@vger.kernel.org,
kernel-janitors@vger.kernel.org
Subject: Re: [PATCH] ath9k: remove set but not used variable 'acq'
Date: Mon, 25 Feb 2019 12:04:43 +0100 [thread overview]
Message-ID: <877edouo1g.fsf@toke.dk> (raw)
In-Reply-To: <877edom8vl.fsf@kamboji.qca.qualcomm.com>
Kalle Valo <kvalo@codeaurora.org> writes:
> Toke Høiland-Jørgensen <toke@redhat.com> writes:
>
>> Kalle Valo <kvalo@codeaurora.org> writes:
>>
>>> Toke Høiland-Jørgensen <toke@redhat.com> writes:
>>>
>>>> YueHaibing <yuehaibing@huawei.com> writes:
>>>>
>>>>> Fixes gcc '-Wunused-but-set-variable' warning:
>>>>>
>>>>> drivers/net/wireless/ath/ath9k/recv.c: In function 'ath_rx_count_airtime':
>>>>> drivers/net/wireless/ath/ath9k/recv.c:1010:18: warning:
>>>>> variable 'acq' set but not used [-Wunused-but-set-variable]
>>>>>
>>>>> It's not used after 89cea7493a34 ("ath9k: Switch to mac80211 TXQ scheduling
>>>>> and airtime APIs"). Also remove related variables.
>>>>
>>>> Ah, right, seems I forgot to clean that up. I wonder why I didn't get a
>>>> compiler warning for it.
>>>
>>> I think the warning is not enabled by default and you need to use W=1
>>> Makefile variable to enable it.
>>
>> Hmm, right, thanks! Guess I should get into the habit of compiling with
>> warnings enabled before submitting patches :)
>
> But you might get a lot of warnings and it could be difficult to find
> new warnings from all the noise. In ath10k I just fixed all W=1 warnings
> which I saw with gcc 8.1 and only now I was able to enable W=1 on my
> build script.
Ah, that was what that patch series was about :)
Right, well, I guess I'll give it a shot at some point and if it's not
too annoying I'll try to keep an eye on the warnings output...
-Toke
next prev parent reply other threads:[~2019-02-25 11:04 UTC|newest]
Thread overview: 7+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-02-25 3:32 [PATCH] ath9k: remove set but not used variable 'acq' YueHaibing
2019-02-25 9:50 ` Toke Høiland-Jørgensen
2019-02-25 10:03 ` Kalle Valo
2019-02-25 10:49 ` Toke Høiland-Jørgensen
2019-02-25 10:59 ` Kalle Valo
2019-02-25 11:04 ` Toke Høiland-Jørgensen [this message]
2019-02-26 13:09 ` Kalle Valo
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