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Date: Mon, 16 Mar 2026 20:41:53 -0700
From: Jakub Kicinski <kuba@kernel.org>
To: Ioana Ciornei <ioana.ciornei@nxp.com>
Cc: netdev@vger.kernel.org, Andrew Lunn <andrew+netdev@lunn.ch>, "David S.
 Miller" <davem@davemloft.net>, Eric Dumazet <edumazet@google.com>, Paolo
 Abeni <pabeni@redhat.com>, Shuah Khan <shuah@kernel.org>, Simon Horman
 <horms@kernel.org>, linux-kernel@vger.kernel.org,
 linux-kselftest@vger.kernel.org
Subject: Re: [PATCH net-next v2 2/3] net: dpaa2-mac: retrieve MAC statistics
 in one firmware command
Message-ID: <20260316204153.4643cd16@kernel.org>
In-Reply-To: <20260312142249.297192-3-ioana.ciornei@nxp.com>
References: <20260312142249.297192-1-ioana.ciornei@nxp.com>
	<20260312142249.297192-3-ioana.ciornei@nxp.com>
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On Thu, 12 Mar 2026 16:22:48 +0200 Ioana Ciornei wrote:
> +	stats->values_dma_mem = kcalloc(num_stats, sizeof(u64), GFP_KERNEL);
> +	if (!stats->values_dma_mem)
> +		goto err_alloc_values;
> +
> +	cnt_idx = stats->idx_dma_mem;
> +	for (size_t i = 0; i < num_stats; i++)
> +		*cnt_idx++ = cpu_to_le32((u32)(counters[i].id));
> +
> +	stats->idx_iova = dma_map_single(dev, stats->idx_dma_mem,
> +					 num_stats * sizeof(u32),
> +					 DMA_TO_DEVICE);
> +	if (dma_mapping_error(dev, stats->idx_iova))

dma_alloc_noncoherent(), maybe ?