linux-kernel - Re: [PATCH] net/mlx5e: Fix printk format warning

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Message-ID: <ff6dc8997083c5d8968df48cc191e5b9e8797618.camel@perches.com>
Date:   Thu, 19 Dec 2019 18:06:57 -0800
From:   Joe Perches <joe@...ches.com>
To:     Olof Johansson <olof@...om.net>,
        Saeed Mahameed <saeedm@...lanox.com>,
        Leon Romanovsky <leon@...nel.org>
Cc:     netdev@...r.kernel.org, linux-rdma@...r.kernel.org,
        linux-kernel@...r.kernel.org
Subject: Re: [PATCH] net/mlx5e: Fix printk format warning

On Thu, 2019-12-19 at 16:15 -0800, Olof Johansson wrote:
> Use "%zu" for size_t. Seen on ARM allmodconfig:
[]
> diff --git a/drivers/net/ethernet/mellanox/mlx5/core/wq.c b/drivers/net/ethernet/mellanox/mlx5/core/wq.c
[]
> @@ -89,7 +89,7 @@ void mlx5_wq_cyc_wqe_dump(struct mlx5_wq_cyc *wq, u16 ix, u8 nstrides)
>  	len = nstrides << wq->fbc.log_stride;
>  	wqe = mlx5_wq_cyc_get_wqe(wq, ix);
>  
> -	pr_info("WQE DUMP: WQ size %d WQ cur size %d, WQE index 0x%x, len: %ld\n",
> +	pr_info("WQE DUMP: WQ size %d WQ cur size %d, WQE index 0x%x, len: %zu\n",
>  		mlx5_wq_cyc_get_size(wq), wq->cur_sz, ix, len);
>  	print_hex_dump(KERN_WARNING, "", DUMP_PREFIX_OFFSET, 16, 1, wqe, len, false);
>  }

One might expect these 2 outputs to be at the same KERN_<LEVEL> too.
One is KERN_INFO the other KERN_WARNING