linux-kernel - Re: [PATCH] RDMA/mlx5: Remove redundant assignment to ret

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Message-ID: <20210511193729.GC1316147@nvidia.com>
Date:   Tue, 11 May 2021 16:37:29 -0300
From:   Jason Gunthorpe <jgg@...dia.com>
To:     Yang Li <yang.lee@...ux.alibaba.com>
Cc:     leon@...nel.org, dledford@...hat.com, nathan@...nel.org,
        ndesaulniers@...gle.com, linux-rdma@...r.kernel.org,
        linux-kernel@...r.kernel.org, clang-built-linux@...glegroups.com
Subject: Re: [PATCH] RDMA/mlx5: Remove redundant assignment to ret

On Thu, May 06, 2021 at 06:13:21PM +0800, Yang Li wrote:
> Variable 'ret' is set to the rerurn value of function
> mlx5_mr_cache_alloc() but this value is never read as it is
> overwritten with a new value later on, hence it is a redundant
> assignment and can be removed
> 
> Clean up the following clang-analyzer warning:
> 
> drivers/infiniband/hw/mlx5/odp.c:421:2: warning: Value stored to 'ret'
> is never read [clang-analyzer-deadcode.DeadStores]
> 
> Reported-by: Abaci Robot <abaci@...ux.alibaba.com>
> Signed-off-by: Yang Li <yang.lee@...ux.alibaba.com>
> Reviewed-by: Leon Romanovsky <leonro@...dia.com>
> ---
>  drivers/infiniband/hw/mlx5/odp.c | 2 +-
>  1 file changed, 1 insertion(+), 1 deletion(-)

Applied to for-next, thanks

Jason