net: socionext: replace napi_alloc_frag with the netdev variant on init

The netdev variant is usable on any context since it disables interrupts.
The napi variant of the call should only be used within softirq context.
Replace napi_alloc_frag on driver init with the correct netdev_alloc_frag
call

Changes since v1:
- Adjusted commit message
Acked-by: NArd Biesheuvel <ard.biesheuvel@linaro.org>
Acked-by: NJassi Brar <jaswinder.singh@linaro.org>
Fixes: 4acb20b4 ("net: socionext: different approach on DMA")
Signed-off-by: NIlias Apalodimas <ilias.apalodimas@linaro.org>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

drivers/net/ethernet/socionext/netsec.c

@@ -673,7 +673,8 @@ static void netsec_process_tx(struct netsec_priv *priv)
 }
 
 static void *netsec_alloc_rx_data(struct netsec_priv *priv,
-				  dma_addr_t *dma_handle, u16 *desc_len)
+				  dma_addr_t *dma_handle, u16 *desc_len,
+				  bool napi)
 {
 	size_t total_len = SKB_DATA_ALIGN(sizeof(struct skb_shared_info));
 	size_t payload_len = NETSEC_RX_BUF_SZ;
@@ -682,7 +683,7 @@ static void *netsec_alloc_rx_data(struct netsec_priv *priv,
 
 	total_len += SKB_DATA_ALIGN(payload_len + NETSEC_SKB_PAD);
 
-	buf = napi_alloc_frag(total_len);
+	buf = napi ? napi_alloc_frag(total_len) : netdev_alloc_frag(total_len);
 	if (!buf)
 		return NULL;
 
@@ -765,7 +766,8 @@ static int netsec_process_rx(struct netsec_priv *priv, int budget)
 		/* allocate a fresh buffer and map it to the hardware.
 		 * This will eventually replace the old buffer in the hardware
 		 */
-		buf_addr = netsec_alloc_rx_data(priv, &dma_handle, &desc_len);
+		buf_addr = netsec_alloc_rx_data(priv, &dma_handle, &desc_len,
+						true);
 		if (unlikely(!buf_addr))
 			break;
 
@@ -1069,7 +1071,8 @@ static int netsec_setup_rx_dring(struct netsec_priv *priv)
 		void *buf;
 		u16 len;
 
-		buf = netsec_alloc_rx_data(priv, &dma_handle, &len);
+		buf = netsec_alloc_rx_data(priv, &dma_handle, &len,
+					   false);
 		if (!buf) {
 			netsec_uninit_pkt_dring(priv, NETSEC_RING_RX);
 			goto err_out;