kernel: split patches folder up into backport, pending and hack folders

* properly format/comment all patches
* merge debloat patches
* merge Kconfig patches
* merge swconfig patches
* merge hotplug patches
* drop 200-fix_localversion.patch - upstream
* drop 222-arm_zimage_none.patch - unused
* drop 252-mv_cesa_depends.patch - no longer required
* drop 410-mtd-move-forward-declaration-of-struct-mtd_info.patch - unused
* drop 661-fq_codel_keep_dropped_stats.patch - outdated
* drop 702-phy_add_aneg_done_function.patch - upstream
* drop 840-rtc7301.patch - unused
* drop 841-rtc_pt7c4338.patch - upstream
* drop 921-use_preinit_as_init.patch - unused
* drop spio-gpio-old and gpio-mmc - unused

Signed-off-by: John Crispin <john@phrozen.org>

1 files changed, 0 insertions, 189 deletions

diff --git a/target/linux/generic/patches-3.18/077-02-bgmac-implement-GRO-and-use-build_skb.patch b/target/linux/generic/patches-3.18/077-02-bgmac-implement-GRO-and-use-build_skb.patch
deleted file mode 100644
index 8dc5242..0000000
--- a/target/linux/generic/patches-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;
- };
-