linux-kernel - Re: [PATCH] printk: Remove obsoleted check for non-existent "user" object

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Message-ID: <20230331040559.GB12892@google.com>
Date:   Fri, 31 Mar 2023 13:05:59 +0900
From:   Sergey Senozhatsky <senozhatsky@...omium.org>
To:     Stanislav Kinsburskii <skinsburskii@...ux.microsoft.com>
Cc:     Stanislav Kinsburskii <stanislav.kinsburski@...il.com>,
        Petr Mladek <pmladek@...e.com>,
        Sergey Senozhatsky <senozhatsky@...omium.org>,
        Steven Rostedt <rostedt@...dmis.org>,
        John Ogness <john.ogness@...utronix.de>,
        linux-kernel@...r.kernel.org
Subject: Re: [PATCH] printk: Remove obsoleted check for non-existent "user"
 object

On (23/03/20 00:02), Stanislav Kinsburskii wrote:
> From: Stanislav Kinsburskii <stanislav.kinsburski@...il.com>
> 
> The original check for non-null "user" object was introduced by commit
> e11fea92e13f ("kmsg: export printk records to the /dev/kmsg interface") when
> "user" could be NULL if /dev/ksmg was opened for writing.
> 
> Subsequent change 750afe7babd1 ("printk: add kernel parameter to control
> writes to /dev/kmsg") made "user" context required for files opened for write,
> but didn't remove now redundant checks for it to be non-NULL.
> 
> This patch removes the dead code while preserving the current logic.
> 
> Signed-off-by: Stanislav Kinsburskii <stanislav.kinsburski@...il.com>
> CC: Petr Mladek <pmladek@...e.com>
> CC: Sergey Senozhatsky <senozhatsky@...omium.org>
> CC: Steven Rostedt <rostedt@...dmis.org>
> CC: John Ogness <john.ogness@...utronix.de>
> CC: linux-kernel@...r.kernel.org

Looks like we should be fine
Reviewed-by: Sergey Senozhatsky <senozhatsky@...omium.org>