linux-kernel - Re: [PATCH] nvmet: remove redundant assignment after left shift

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Message-ID: <2dc14dce-94cd-6ef6-bf6f-a06842d27fab@nvidia.com>
Date:   Mon, 21 Mar 2022 07:17:02 +0000
From:   Chaitanya Kulkarni <chaitanyak@...dia.com>
To:     Colin Ian King <colin.i.king@...il.com>
CC:     "kernel-janitors@...r.kernel.org" <kernel-janitors@...r.kernel.org>,
        Chaitanya Kulkarni <chaitanyak@...dia.com>,
        "linux-nvme@...ts.infradead.org" <linux-nvme@...ts.infradead.org>,
        Christoph Hellwig <hch@....de>,
        Sagi Grimberg <sagi@...mberg.me>,
        "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
        "llvm@...ts.linux.dev" <llvm@...ts.linux.dev>
Subject: Re: [PATCH] nvmet: remove redundant assignment after left shift

On 3/17/22 18:30, Colin Ian King wrote:
> The left shift is followed by a re-assignment back to cc_css,
> the assignment is redundant. Fix this by replacing the <<=
> operator with << instead.
> 
> Cleans up clang scan build warning:
> drivers/nvme/target/core.c:1124:10: warning: Although the value
> stored to 'cc_css' is used in the enclosing expression, the
> value is never actually read from 'cc_css' [deadcode.DeadStores]
> 
> Signed-off-by: Colin Ian King <colin.i.king@...il.com>
>

Thanks, looks good.

Reviewed-by: Chaitanya Kulkarni <kch@...dia.com>

-ck