netdev - Re: [PATCH v2] staging: qlge: Fix indentation issue under long for loop

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Message-ID: <d278cf5d38235db92efa236cb1940a67e0e9a005.camel@perches.com>
Date:   Sun, 10 Jul 2022 08:28:57 -0700
From:   Joe Perches <joe@...ches.com>
To:     Binyi Han <dantengknight@...il.com>,
        Manish Chopra <manishc@...vell.com>,
        GR-Linux-NIC-Dev@...vell.com, Coiby Xu <coiby.xu@...il.com>,
        Greg Kroah-Hartman <gregkh@...uxfoundation.org>
Cc:     netdev@...r.kernel.org, linux-staging@...ts.linux.dev,
        linux-kernel@...r.kernel.org
Subject: Re: [PATCH v2] staging: qlge: Fix indentation issue under long for
 loop

On Sun, 2022-07-10 at 01:36 -0700, Binyi Han wrote:
> Fix indentation issue to adhere to Linux kernel coding style,
> Issue found by checkpatch. And change the long for loop into 3 lines.
> 
> Signed-off-by: Binyi Han <dantengknight@...il.com>
> ---
> v2:
> 	- Change the long for loop into 3 lines.
> 
>  drivers/staging/qlge/qlge_main.c | 18 ++++++++++--------
>  1 file changed, 10 insertions(+), 8 deletions(-)
> 
> diff --git a/drivers/staging/qlge/qlge_main.c b/drivers/staging/qlge/qlge_main.c
> index 1a378330d775..6e771d0e412b 100644
> --- a/drivers/staging/qlge/qlge_main.c
> +++ b/drivers/staging/qlge/qlge_main.c
> @@ -3007,10 +3007,11 @@ static int qlge_start_rx_ring(struct qlge_adapter *qdev, struct rx_ring *rx_ring
>  		tmp = (u64)rx_ring->lbq.base_dma;
>  		base_indirect_ptr = rx_ring->lbq.base_indirect;
>  
> -		for (page_entries = 0; page_entries <
> -			MAX_DB_PAGES_PER_BQ(QLGE_BQ_LEN); page_entries++)
> -				base_indirect_ptr[page_entries] =
> -					cpu_to_le64(tmp + (page_entries * DB_PAGE_SIZE));
> +		for (page_entries = 0;
> +			page_entries < MAX_DB_PAGES_PER_BQ(QLGE_BQ_LEN);
> +			page_entries++)
> +			base_indirect_ptr[page_entries] =
> +				cpu_to_le64(tmp + (page_entries * DB_PAGE_SIZE));

Better to align page_entries to the open parenthesis.

And another optimization would be to simply add DB_PAGE_SIZE to tmp
in the loop and avoid the multiply.

		for (page_entries = 0;
		     page_entries < MAX_DB_PAGES_PER_BQ(QLGE_BQ_LEN);
		     page_entries++) {
			base_indirect_ptr[page_entries] = cpu_to_le64(tmp);
			tmp += DB_PAGE_SIZE;
		}

> @@ -3022,10 +3023,11 @@ static int qlge_start_rx_ring(struct qlge_adapter *qdev, struct rx_ring *rx_ring
>  		tmp = (u64)rx_ring->sbq.base_dma;
>  		base_indirect_ptr = rx_ring->sbq.base_indirect;
>  
> -		for (page_entries = 0; page_entries <
> -			MAX_DB_PAGES_PER_BQ(QLGE_BQ_LEN); page_entries++)
> -				base_indirect_ptr[page_entries] =
> -					cpu_to_le64(tmp + (page_entries * DB_PAGE_SIZE));
> +		for (page_entries = 0;
> +			page_entries < MAX_DB_PAGES_PER_BQ(QLGE_BQ_LEN);
> +			page_entries++)
> +			base_indirect_ptr[page_entries] =
> +				cpu_to_le64(tmp + (page_entries * DB_PAGE_SIZE));

here too