linux-kernel - Re: [PATCH] replace for loop with array initializer

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Message-ID: <20210712130520.748b6e3a@hermes.local>
Date:   Mon, 12 Jul 2021 13:05:20 -0700
From:   Stephen Hemminger <stephen@...workplumber.org>
To:     Salah Triki <salah.triki@...il.com>
Cc:     kevin.curtis@...site.co.uk, davem@...emloft.net, kuba@...nel.org,
        netdev@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH] replace for loop with array initializer

On Mon, 12 Jul 2021 20:24:50 +0100
Salah Triki <salah.triki@...il.com> wrote:

> diff --git a/drivers/net/wan/farsync.c b/drivers/net/wan/farsync.c
> index b3466e084e84..a90d3b9a8170 100644
> --- a/drivers/net/wan/farsync.c
> +++ b/drivers/net/wan/farsync.c
> @@ -567,7 +567,7 @@ static void fst_process_int_work_q(struct tasklet_struct *unused);
>  static DECLARE_TASKLET(fst_tx_task, fst_process_tx_work_q);
>  static DECLARE_TASKLET(fst_int_task, fst_process_int_work_q);
>  
> -static struct fst_card_info *fst_card_array[FST_MAX_CARDS];
> +static struct fst_card_info *fst_card_array[FST_MAX_CARDS] = { [0 ... FST_MAX_CARDS-1] = NULL };

Why bother, the default initialization in C is 0 (ie. NULL).
In fact, checkpatch should complain about useless array initialization for this.