kernel: delete Linux 5.4 config and patches

As the upcoming release will be based on Linux 5.10 only, remove all
kernel configuration as well as patches for Linux 5.4.
There were no targets still actively using Linux 5.4.

Signed-off-by: Daniel Golle <daniel@makrotopia.org>
(cherry picked from commit 3a14580411adfb75f9a44eded9f41245b9e44606)

1 files changed, 0 insertions, 67 deletions

diff --git a/target/linux/layerscape/patches-5.4/701-net-0047-sdk_dpaa-update-comments-about-recycling-and-back-po.patch b/target/linux/layerscape/patches-5.4/701-net-0047-sdk_dpaa-update-comments-about-recycling-and-back-po.patch
deleted file mode 100644
index a54dce9f28..0000000000
--- a/target/linux/layerscape/patches-5.4/701-net-0047-sdk_dpaa-update-comments-about-recycling-and-back-po.patch
+++ /dev/null
@@ -1,67 +0,0 @@
-From 2d7b6e7daf076b63f461ce9c4ec6022ddc3d15bb Mon Sep 17 00:00:00 2001
-From: Camelia Groza <camelia.groza@nxp.com>
-Date: Mon, 15 Jan 2018 17:42:42 +0200
-Subject: [PATCH] sdk_dpaa: update comments about recycling and back-pointer
- storage
-
-Signed-off-by: Camelia Groza <camelia.groza@nxp.com>
----
- drivers/net/ethernet/freescale/sdk_dpaa/dpaa_eth_sg.c | 18 ++++++++++++++++--
- 1 file changed, 16 insertions(+), 2 deletions(-)
-
---- a/drivers/net/ethernet/freescale/sdk_dpaa/dpaa_eth_sg.c
-+++ b/drivers/net/ethernet/freescale/sdk_dpaa/dpaa_eth_sg.c
-@@ -121,6 +121,10 @@ static int _dpa_bp_add_8_bufs(const stru
- 			put_page(virt_to_head_page(new_buf));
- 			goto build_skb_failed;
- 		}
-+
-+		/* Store the skb back-pointer before the start of the buffer.
-+		 * Otherwise it will be overwritten by the FMan.
-+		 */
- 		DPA_WRITE_SKB_PTR(skb, skbh, new_buf, -1);
- 
- 		addr = dma_map_single(dev, new_buf,
-@@ -344,7 +348,10 @@ bool dpa_buf_is_recyclable(struct sk_buf
- 	 * - buffer address aligned to cacheline bytes
- 	 * - offset of data from start of buffer no lower than a minimum value
- 	 * - offset of data from start of buffer no higher than a maximum value
-+	 * - the skb back-pointer is stored safely
- 	 */
-+
-+	/* guarantee both the minimum size and the minimum data offset */
- 	new = min(skb_end_pointer(skb) - min_size, skb->data - min_offset);
- 
- 	/* left align to the nearest cacheline */
-@@ -694,6 +701,9 @@ int __hot skb_to_contig_fd(struct dpa_pr
- 		dma_dir = DMA_BIDIRECTIONAL;
- 		dma_map_size = dpa_bp->size;
- 
-+		/* Store the skb back-pointer before the start of the buffer.
-+		 * Otherwise it will be overwritten by the FMan.
-+		 */
- 		DPA_WRITE_SKB_PTR(skb, skbh, buffer_start, -1);
- 		*offset = skb_headroom(skb) - fd->offset;
- 	} else
-@@ -711,7 +721,7 @@ int __hot skb_to_contig_fd(struct dpa_pr
- 
- 		/* The buffer will be Tx-confirmed, but the TxConf cb must
- 		 * necessarily look at our Tx private data to retrieve the
--		 * skbuff. (In short: can't use DPA_WRITE_SKB_PTR() here.)
-+		 * skbuff. Store the back-pointer inside the buffer.
- 		 */
- 		DPA_WRITE_SKB_PTR(skb, skbh, buffer_start, 0);
- 	}
-@@ -975,7 +985,11 @@ int __hot skb_to_sg_fd(struct dpa_priv_s
- 	fd->length20 = skb->len;
- 	fd->offset = priv->tx_headroom;
- 
--	/* DMA map the SGT page */
-+	/* DMA map the SGT page
-+	 *
-+	 * It's safe to store the skb back-pointer inside the buffer since
-+	 * S/G frames are non-recyclable.
-+	 */
- 	DPA_WRITE_SKB_PTR(skb, skbh, sgt_buf, 0);
- 	addr = dma_map_single(dpa_bp->dev, sgt_buf,
- 			      priv->tx_headroom + sgt_size,