Received-SPF: pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 23.128.96.18 as permitted sender) client-ip=23.128.96.18;
Date:   Tue, 8 Dec 2020 17:00:31 +0100
From:   Petr Mladek <pmladek@suse.com>
To:     Lukas Bulwahn <lukas.bulwahn@gmail.com>
Cc:     Sergey Senozhatsky <sergey.senozhatsky@gmail.com>,
        Steven Rostedt <rostedt@goodmis.org>,
        John Ogness <john.ogness@linutronix.de>,
        Nathan Chancellor <natechancellor@gmail.com>,
        Nick Desaulniers <ndesaulniers@google.com>,
        linux-kernel@vger.kernel.org, clang-built-linux@googlegroups.com,
        kernel-janitors@vger.kernel.org, linux-safety@lists.elisa.tech
Subject: Re: [PATCH] printk: remove obsolete dead assignment
Message-ID: <X8+jHx7sRlroUM8u@alley>
References: <20201130124915.7573-1-lukas.bulwahn@gmail.com>
MIME-Version: 1.0
Content-Type: text/plain; charset=us-ascii
Content-Disposition: inline
In-Reply-To: <20201130124915.7573-1-lukas.bulwahn@gmail.com>
Precedence: bulk

On Mon 2020-11-30 13:49:15, Lukas Bulwahn wrote:
> Commit 849f3127bb46 ("switch /dev/kmsg to ->write_iter()") refactored
> devkmsg_write() and left over a dead assignment on the variable 'len'.
> 
> Hence, make clang-analyzer warns:
> 
>   kernel/printk/printk.c:744:4: warning: Value stored to 'len' is never read
>     [clang-analyzer-deadcode.DeadStores]
>                           len -= endp - line;
>                           ^
> 
> Simply remove this obsolete dead assignment here.
> 
> Signed-off-by: Lukas Bulwahn <lukas.bulwahn@gmail.com>

The patch is committed in printk/linux.git, branch for-5.11.

Best Regards,
Petr