kernel: Remove support for kernel 3.18

No target is using kernel 3.18 anymore, remove all the generic
support for kernel 3.18.

The removed packages are depending on kernel 3.18 only and are not used on
any recent kernel.

Signed-off-by: Hauke Mehrtens <hauke@hauke-m.de>

1 files changed, 0 insertions, 189 deletions

diff --git a/target/linux/generic/pending-3.18/077-02-bgmac-implement-GRO-and-use-build_skb.patch b/target/linux/generic/pending-3.18/077-02-bgmac-implement-GRO-and-use-build_skb.patch
deleted file mode 100644
index 8dc5242b5a..0000000000
--- a/target/linux/generic/pending-3.18/077-02-bgmac-implement-GRO-and-use-build_skb.patch
+++ /dev/null
@@ -1,189 +0,0 @@
-From: Felix Fietkau <nbd@nbd.name>
-Date: Mon, 23 Mar 2015 02:41:25 +0100
-Subject: [PATCH] bgmac: implement GRO and use build_skb
-
-This improves performance for routing and local rx
-
-Signed-off-by: Felix Fietkau <nbd@nbd.name>
----
-
---- a/drivers/net/ethernet/broadcom/bgmac.c
-+++ b/drivers/net/ethernet/broadcom/bgmac.c
-@@ -276,31 +276,31 @@ static int bgmac_dma_rx_skb_for_slot(str
- 				     struct bgmac_slot_info *slot)
- {
- 	struct device *dma_dev = bgmac->core->dma_dev;
--	struct sk_buff *skb;
- 	dma_addr_t dma_addr;
- 	struct bgmac_rx_header *rx;
-+	void *buf;
- 
- 	/* Alloc skb */
--	skb = netdev_alloc_skb(bgmac->net_dev, BGMAC_RX_BUF_SIZE);
--	if (!skb)
-+	buf = netdev_alloc_frag(BGMAC_RX_ALLOC_SIZE);
-+	if (!buf)
- 		return -ENOMEM;
- 
- 	/* Poison - if everything goes fine, hardware will overwrite it */
--	rx = (struct bgmac_rx_header *)skb->data;
-+	rx = buf;
- 	rx->len = cpu_to_le16(0xdead);
- 	rx->flags = cpu_to_le16(0xbeef);
- 
- 	/* Map skb for the DMA */
--	dma_addr = dma_map_single(dma_dev, skb->data,
--				  BGMAC_RX_BUF_SIZE, DMA_FROM_DEVICE);
-+	dma_addr = dma_map_single(dma_dev, buf, BGMAC_RX_BUF_SIZE,
-+				  DMA_FROM_DEVICE);
- 	if (dma_mapping_error(dma_dev, dma_addr)) {
- 		bgmac_err(bgmac, "DMA mapping error\n");
--		dev_kfree_skb(skb);
-+		put_page(virt_to_head_page(buf));
- 		return -ENOMEM;
- 	}
- 
- 	/* Update the slot */
--	slot->skb = skb;
-+	slot->buf = buf;
- 	slot->dma_addr = dma_addr;
- 
- 	return 0;
-@@ -343,8 +343,9 @@ static int bgmac_dma_rx_read(struct bgma
- 	while (ring->start != ring->end) {
- 		struct device *dma_dev = bgmac->core->dma_dev;
- 		struct bgmac_slot_info *slot = &ring->slots[ring->start];
--		struct sk_buff *skb = slot->skb;
--		struct bgmac_rx_header *rx;
-+		struct bgmac_rx_header *rx = slot->buf;
-+		struct sk_buff *skb;
-+		void *buf = slot->buf;
- 		u16 len, flags;
- 
- 		/* Unmap buffer to make it accessible to the CPU */
-@@ -352,7 +353,6 @@ static int bgmac_dma_rx_read(struct bgma
- 					BGMAC_RX_BUF_SIZE, DMA_FROM_DEVICE);
- 
- 		/* Get info from the header */
--		rx = (struct bgmac_rx_header *)skb->data;
- 		len = le16_to_cpu(rx->len);
- 		flags = le16_to_cpu(rx->flags);
- 
-@@ -393,12 +393,13 @@ static int bgmac_dma_rx_read(struct bgma
- 			dma_unmap_single(dma_dev, old_dma_addr,
- 					 BGMAC_RX_BUF_SIZE, DMA_FROM_DEVICE);
- 
-+			skb = build_skb(buf, BGMAC_RX_ALLOC_SIZE);
- 			skb_put(skb, BGMAC_RX_FRAME_OFFSET + len);
- 			skb_pull(skb, BGMAC_RX_FRAME_OFFSET);
- 
- 			skb_checksum_none_assert(skb);
- 			skb->protocol = eth_type_trans(skb, bgmac->net_dev);
--			netif_receive_skb(skb);
-+			napi_gro_receive(&bgmac->napi, skb);
- 			handled++;
- 		} while (0);
- 
-@@ -434,12 +435,11 @@ static bool bgmac_dma_unaligned(struct b
- 	return false;
- }
- 
--static void bgmac_dma_ring_free(struct bgmac *bgmac,
--				struct bgmac_dma_ring *ring)
-+static void bgmac_dma_tx_ring_free(struct bgmac *bgmac,
-+				   struct bgmac_dma_ring *ring)
- {
- 	struct device *dma_dev = bgmac->core->dma_dev;
- 	struct bgmac_slot_info *slot;
--	int size;
- 	int i;
- 
- 	for (i = 0; i < ring->num_slots; i++) {
-@@ -451,23 +451,55 @@ static void bgmac_dma_ring_free(struct b
- 			dev_kfree_skb(slot->skb);
- 		}
- 	}
-+}
-+
-+static void bgmac_dma_rx_ring_free(struct bgmac *bgmac,
-+				   struct bgmac_dma_ring *ring)
-+{
-+	struct device *dma_dev = bgmac->core->dma_dev;
-+	struct bgmac_slot_info *slot;
-+	int i;
-+
-+	for (i = 0; i < ring->num_slots; i++) {
-+		slot = &ring->slots[i];
-+		if (!slot->buf)
-+			continue;
- 
--	if (ring->cpu_base) {
--		/* Free ring of descriptors */
--		size = ring->num_slots * sizeof(struct bgmac_dma_desc);
--		dma_free_coherent(dma_dev, size, ring->cpu_base,
--				  ring->dma_base);
-+		if (slot->dma_addr)
-+			dma_unmap_single(dma_dev, slot->dma_addr,
-+					 BGMAC_RX_BUF_SIZE,
-+					 DMA_FROM_DEVICE);
-+		put_page(virt_to_head_page(slot->buf));
- 	}
- }
- 
-+static void bgmac_dma_ring_desc_free(struct bgmac *bgmac,
-+				     struct bgmac_dma_ring *ring)
-+{
-+	struct device *dma_dev = bgmac->core->dma_dev;
-+	int size;
-+
-+	if (!ring->cpu_base)
-+	    return;
-+
-+	/* Free ring of descriptors */
-+	size = ring->num_slots * sizeof(struct bgmac_dma_desc);
-+	dma_free_coherent(dma_dev, size, ring->cpu_base,
-+			  ring->dma_base);
-+}
-+
- static void bgmac_dma_free(struct bgmac *bgmac)
- {
- 	int i;
- 
--	for (i = 0; i < BGMAC_MAX_TX_RINGS; i++)
--		bgmac_dma_ring_free(bgmac, &bgmac->tx_ring[i]);
--	for (i = 0; i < BGMAC_MAX_RX_RINGS; i++)
--		bgmac_dma_ring_free(bgmac, &bgmac->rx_ring[i]);
-+	for (i = 0; i < BGMAC_MAX_TX_RINGS; i++) {
-+		bgmac_dma_tx_ring_free(bgmac, &bgmac->tx_ring[i]);
-+		bgmac_dma_ring_desc_free(bgmac, &bgmac->tx_ring[i]);
-+	}
-+	for (i = 0; i < BGMAC_MAX_RX_RINGS; i++) {
-+		bgmac_dma_rx_ring_free(bgmac, &bgmac->rx_ring[i]);
-+		bgmac_dma_ring_desc_free(bgmac, &bgmac->rx_ring[i]);
-+	}
- }
- 
- static int bgmac_dma_alloc(struct bgmac *bgmac)
---- a/drivers/net/ethernet/broadcom/bgmac.h
-+++ b/drivers/net/ethernet/broadcom/bgmac.h
-@@ -362,6 +362,8 @@
- #define BGMAC_RX_FRAME_OFFSET			30		/* There are 2 unused bytes between header and real data */
- #define BGMAC_RX_MAX_FRAME_SIZE			1536		/* Copied from b44/tg3 */
- #define BGMAC_RX_BUF_SIZE			(BGMAC_RX_FRAME_OFFSET + BGMAC_RX_MAX_FRAME_SIZE)
-+#define BGMAC_RX_ALLOC_SIZE			(SKB_DATA_ALIGN(BGMAC_RX_BUF_SIZE) + \
-+						 SKB_DATA_ALIGN(sizeof(struct skb_shared_info)))
- 
- #define BGMAC_BFL_ENETROBO			0x0010		/* has ephy roboswitch spi */
- #define BGMAC_BFL_ENETADM			0x0080		/* has ADMtek switch */
-@@ -383,7 +385,10 @@
- #define ETHER_MAX_LEN   1518
- 
- struct bgmac_slot_info {
--	struct sk_buff *skb;
-+	union {
-+		struct sk_buff *skb;
-+		void *buf;
-+	};
- 	dma_addr_t dma_addr;
- };
-