From: Kalle Valo <kvalo@codeaurora.org>
To: Arnd Bergmann <arnd@arndb.de>
Cc: Maya Erez <merez@codeaurora.org>,
"David S. Miller" <davem@davemloft.net>,
Arnd Bergmann <arnd@arndb.de>,
Dedy Lansky <dlansky@codeaurora.org>,
Ahmad Masri <amasri@codeaurora.org>,
Alexei Avshalom Lazar <ailizaro@codeaurora.org>,
Tzahi Sabo <stzahi@codeaurora.org>,
"Gustavo A. R. Silva" <gustavo@embeddedor.com>,
Lior David <liord@codeaurora.org>,
linux-wireless@vger.kernel.org, wil6210@qti.qualcomm.com,
netdev@vger.kernel.org, linux-kernel@vger.kernel.org
Subject: Re: [PATCH] wil6210: avoid gcc-10 zero-length-bounds warning
Date: Mon, 11 May 2020 12:33:52 +0000 (UTC) [thread overview]
Message-ID: <20200511123352.D753CC43637@smtp.codeaurora.org> (raw)
In-Reply-To: <20200505143332.1398524-1-arnd@arndb.de>
Arnd Bergmann <arnd@arndb.de> wrote:
> gcc-10 warns about accesses inside of a zero-length array:
>
> drivers/net/wireless/ath/wil6210/cfg80211.c: In function 'wil_cfg80211_scan':
> drivers/net/wireless/ath/wil6210/cfg80211.c:970:23: error: array subscript 255 is outside the bounds of an interior zero-length array 'struct <anonymous>[0]' [-Werror=zero-length-bounds]
> 970 | cmd.cmd.channel_list[cmd.cmd.num_channels++].channel = ch - 1;
> | ~~~~~~~~~~~~~~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~
> In file included from drivers/net/wireless/ath/wil6210/wil6210.h:17,
> from drivers/net/wireless/ath/wil6210/cfg80211.c:11:
> drivers/net/wireless/ath/wil6210/wmi.h:477:4: note: while referencing 'channel_list'
> 477 | } channel_list[0];
> | ^~~~~~~~~~~~
>
> Turn this into a flexible array to avoid the warning.
>
> Signed-off-by: Arnd Bergmann <arnd@arndb.de>
> Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Patch applied to ath-next branch of ath.git, thanks.
04a4d3416372 wil6210: avoid gcc-10 zero-length-bounds warning
--
https://patchwork.kernel.org/patch/11529309/
https://wireless.wiki.kernel.org/en/developers/documentation/submittingpatches
prev parent reply other threads:[~2020-05-11 12:34 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-05-05 14:33 [PATCH] wil6210: avoid gcc-10 zero-length-bounds warning Arnd Bergmann
2020-05-05 15:44 ` Kalle Valo
2020-05-11 12:33 ` Kalle Valo [this message]
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