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Subject: Re: [PATCH] Bluetooth: hci_conn: Refactor hci_bind_bis() since it always
 succeeds
From:   patchwork-bot+bluetooth@kernel.org
Message-Id: <167511421740.28875.16343473654299319606.git-patchwork-notify@kernel.org>
Date:   Mon, 30 Jan 2023 21:30:17 +0000
References: <20230128005150.never.909-kees@kernel.org>
In-Reply-To: <20230128005150.never.909-kees@kernel.org>
To:     Kees Cook <keescook@chromium.org>
Cc:     luiz.von.dentz@intel.com, marcel@holtmann.org,
        johan.hedberg@gmail.com, davem@davemloft.net, edumazet@google.com,
        kuba@kernel.org, pabeni@redhat.com,
        linux-bluetooth@vger.kernel.org, netdev@vger.kernel.org,
        luiz.dentz@gmail.com, linux-kernel@vger.kernel.org,
        linux-hardening@vger.kernel.org
Precedence: bulk

Hello:

This patch was applied to bluetooth/bluetooth-next.git (master)
by Luiz Augusto von Dentz <luiz.von.dentz@intel.com>:

On Fri, 27 Jan 2023 16:51:54 -0800 you wrote:
> The compiler thinks "conn" might be NULL after a call to hci_bind_bis(),
> which cannot happen. Avoid any confusion by just making it not return a
> value since it cannot fail. Fixes the warnings seen with GCC 13:
> 
> In function 'arch_atomic_dec_and_test',
>     inlined from 'atomic_dec_and_test' at ../include/linux/atomic/atomic-instrumented.h:576:9,
>     inlined from 'hci_conn_drop' at ../include/net/bluetooth/hci_core.h:1391:6,
>     inlined from 'hci_connect_bis' at ../net/bluetooth/hci_conn.c:2124:3:
> ../arch/x86/include/asm/rmwcc.h:37:9: warning: array subscript 0 is outside array bounds of 'atomic_t[0]' [-Warray-bounds=]
>    37 |         asm volatile (fullop CC_SET(cc) \
>       |         ^~~
> ...
> In function 'hci_connect_bis':
> cc1: note: source object is likely at address zero
> 
> [...]

Here is the summary with links:
  - Bluetooth: hci_conn: Refactor hci_bind_bis() since it always succeeds
    https://git.kernel.org/bluetooth/bluetooth-next/c/d57d873e6851

You are awesome, thank you!
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