linux-kernel - Re: [PATCH] RDMA: replace ternary operator with min()

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Date:   Thu, 12 May 2022 11:11:08 -0300
From:   Jason Gunthorpe <jgg@...pe.ca>
To:     Guo Zhengkui <guozhengkui@...o.com>
Cc:     Potnuri Bharat Teja <bharat@...lsio.com>,
        Leon Romanovsky <leon@...nel.org>,
        Bernard Metzler <bmt@...ich.ibm.com>,
        "open list:CXGB4 IWARP RNIC DRIVER (IW_CXGB4)" 
        <linux-rdma@...r.kernel.org>,
        open list <linux-kernel@...r.kernel.org>,
        zhengkui_guo@...look.com
Subject: Re: [PATCH] RDMA: replace ternary operator with min()

On Thu, May 12, 2022 at 09:58:37PM +0800, Guo Zhengkui wrote:
> Fix the following coccicheck warnings:
> 
> drivers/infiniband/sw/siw/siw_cm.c:1326:11-12: WARNING opportunity for min()
> drivers/infiniband/sw/siw/siw_cm.c:488:11-12: WARNING opportunity for min()
> drivers/infiniband/hw/cxgb4/cm.c:217:14-15: WARNING opportunity for min()
> drivers/infiniband/hw/cxgb4/cm.c:232:14-15: WARNING opportunity for min()
> 
> min() macro is defined in include/linux/minmax.h. It avoids multiple
> evaluations of the arguments when non-constant and performs strict
> type-checking.

no, these are all error return patterns, if you want to change them to
something change them to

if (error < 0)
   return error;
return 0;

Jason