linux-wireless.vger.kernel.org archive mirror
 help / color / mirror / Atom feed
From: Kalle Valo <kvalo@codeaurora.org>
To: Arnd Bergmann <arnd@arndb.de>
Cc: Arnd Bergmann <arnd@arndb.de>,
	"Gustavo A. R. Silva" <gustavo@embeddedor.com>,
	Michal Kazior <michal.kazior@tieto.com>,
	Kalle Valo <kvalo@qca.qualcomm.com>,
	"David S. Miller" <davem@davemloft.net>,
	Wen Gong <wgong@codeaurora.org>,
	Erik Stromdahl <erik.stromdahl@gmail.com>,
	ath10k@lists.infradead.org, linux-wireless@vger.kernel.org,
	netdev@vger.kernel.org, linux-kernel@vger.kernel.org
Subject: Re: [PATCH net-next 1/2] ath10k: fix gcc-10 zero-length-bounds warnings
Date: Tue, 12 May 2020 07:33:42 +0000 (UTC)	[thread overview]
Message-ID: <20200512073342.BE5A0C44793@smtp.codeaurora.org> (raw)
In-Reply-To: <20200509120707.188595-1-arnd@arndb.de>

Arnd Bergmann <arnd@arndb.de> wrote:

> gcc-10 started warning about out-of-bounds access for zero-length
> arrays:
> 
> In file included from drivers/net/wireless/ath/ath10k/core.h:18,
>                  from drivers/net/wireless/ath/ath10k/htt_rx.c:8:
> drivers/net/wireless/ath/ath10k/htt_rx.c: In function 'ath10k_htt_rx_tx_fetch_ind':
> drivers/net/wireless/ath/ath10k/htt.h:1683:17: warning: array subscript 65535 is outside the bounds of an interior zero-length array 'struct htt_tx_fetch_record[0]' [-Wzero-length-bounds]
>  1683 |  return (void *)&ind->records[le16_to_cpu(ind->num_records)];
>       |                 ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
> drivers/net/wireless/ath/ath10k/htt.h:1676:29: note: while referencing 'records'
>  1676 |  struct htt_tx_fetch_record records[0];
>       |                             ^~~~~~~
> 
> Make records[] a flexible array member to allow this, moving it behind
> the other zero-length member that is not accessed in a way that gcc
> warns about.
> 
> Fixes: 22e6b3bc5d96 ("ath10k: add new htt definitions")
> Signed-off-by: Arnd Bergmann <arnd@arndb.de>
> Signed-off-by: Kalle Valo <kvalo@codeaurora.org>

2 patches applied to ath-next branch of ath.git, thanks.

9f12bebd512c ath10k: fix gcc-10 zero-length-bounds warnings
32221df6765b ath10k: fix ath10k_pci struct layout

-- 
https://patchwork.kernel.org/patch/11538233/

https://wireless.wiki.kernel.org/en/developers/documentation/submittingpatches

      parent reply	other threads:[~2020-05-12  7:33 UTC|newest]

Thread overview: 38+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2020-05-09 12:06 [PATCH net-next 1/2] ath10k: fix gcc-10 zero-length-bounds warnings Arnd Bergmann
2020-05-09 12:06 ` [PATCH net-next 2/2] ath10k: fix ath10k_pci struct layout Arnd Bergmann
2020-05-11 12:05   ` Kalle Valo
2020-05-11 12:17     ` Kalle Valo
2020-05-11 12:39       ` Arnd Bergmann
2020-05-13  6:50       ` gcc-10: kernel stack is corrupted and fails to boot Kalle Valo
2020-05-13  8:49         ` Arnd Bergmann
2020-05-13 12:45           ` Kalle Valo
2020-05-13 13:45             ` Arnd Bergmann
2020-05-13 15:31               ` Kalle Valo
2020-05-13 16:00                 ` Arnd Bergmann
2020-05-13 16:07                   ` David Laight
2020-05-14  9:13                 ` Harald Arnesen
2020-05-13 15:48         ` Arvind Sankar
2020-05-13 21:28           ` Arnd Bergmann
2020-05-13 21:41             ` Borislav Petkov
2020-05-13 21:49               ` Arnd Bergmann
2020-05-13 22:20                 ` Borislav Petkov
2020-05-13 22:51                   ` Arvind Sankar
2020-05-13 23:13                   ` Linus Torvalds
2020-05-13 23:36                     ` Borislav Petkov
2020-05-14  0:11                       ` Linus Torvalds
2020-05-14  0:51                         ` Nick Desaulniers
2020-05-14  2:20                           ` Linus Torvalds
2020-05-14  3:50                             ` Andy Lutomirski
     [not found]                               ` <CAHk-=wgiGxRgJGS-zyer1C_x2MQUVo6iZn0=aJyuFTqJWk-mpA@mail.gmail.com>
2020-05-14  5:22                                 ` Arvind Sankar
2020-05-14  8:40                                   ` Arnd Bergmann
2020-05-14 13:27                                     ` [PATCH] x86: Fix early boot crash on gcc-10, third try Borislav Petkov
2020-05-14 14:45                                       ` Kalle Valo
2020-05-14 15:50                                     ` gcc-10: kernel stack is corrupted and fails to boot Arvind Sankar
2020-05-14  8:11                             ` David Laight
2020-05-13 23:07                 ` Linus Torvalds
2020-05-09 15:48 ` [PATCH net-next 1/2] ath10k: fix gcc-10 zero-length-bounds warnings Gustavo A. R. Silva
2020-05-11 12:02   ` Kalle Valo
2020-05-11 12:46     ` Arnd Bergmann
2020-05-11 13:09       ` Kalle Valo
2020-05-11 13:47         ` Arnd Bergmann
2020-05-12  7:33 ` Kalle Valo [this message]

Reply instructions:

You may reply publicly to this message via plain-text email
using any one of the following methods:

* Save the following mbox file, import it into your mail client,
  and reply-to-all from there: mbox

  Avoid top-posting and favor interleaved quoting:
  https://en.wikipedia.org/wiki/Posting_style#Interleaved_style

* Reply using the --to, --cc, and --in-reply-to
  switches of git-send-email(1):

  git send-email \
    --in-reply-to=20200512073342.BE5A0C44793@smtp.codeaurora.org \
    --to=kvalo@codeaurora.org \
    --cc=arnd@arndb.de \
    --cc=ath10k@lists.infradead.org \
    --cc=davem@davemloft.net \
    --cc=erik.stromdahl@gmail.com \
    --cc=gustavo@embeddedor.com \
    --cc=kvalo@qca.qualcomm.com \
    --cc=linux-kernel@vger.kernel.org \
    --cc=linux-wireless@vger.kernel.org \
    --cc=michal.kazior@tieto.com \
    --cc=netdev@vger.kernel.org \
    --cc=wgong@codeaurora.org \
    /path/to/YOUR_REPLY

  https://kernel.org/pub/software/scm/git/docs/git-send-email.html

* If your mail client supports setting the In-Reply-To header
  via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line before the message body. 
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for NNTP newsgroup(s).