kernel: Make the patches apply on top of 4.19

This makes the patches which were just copied in the previous commit
apply on top of kernel 4.19.

The patches in the backports-4.19 folder were checked if they are really
in kernel 4.19 based on the title and only removed if they were found in
the upstream kernel.

The following additional patches form the pending folder went into
upstream Linux 4.19:
pending-4.19/171-usb-dwc2-Fix-inefficient-copy-of-unaligned-buffers.patch
pending-4.19/190-2-5-e1000e-Fix-wrong-comment-related-to-link-detection.patch
pending-4.19/478-mtd-spi-nor-Add-support-for-XM25QH64A-and-XM25QH128A.patch
pending-4.19/479-mtd-spi-nor-add-eon-en25qh32.patch
pending-4.19/950-tty-serial-exar-generalize-rs485-setup.patch
pending-4.19/340-MIPS-mm-remove-mips_dma_mapping_error.patch

Bigger changes were introduced to the m25p80 spi nor driver, as far as I
saw it in the new code, it now has the functionality provided in this
patch:
pending-4.19/450-mtd-m25p80-allow-fallback-from-spi_flash_read-to-reg.patch

Part of this patch went upstream independent of OpenWrt:
hack-4.19/220-gc_sections.patch
This patch was reworked to match the changes done upstream.

The MIPS DMA API changed a lot, this patch was rewritten to match the
new DMA handling:
pending-4.19/341-MIPS-mm-remove-no-op-dma_map_ops-where-possible.patch

I did bigger manual changes to the following patches and I am not 100% sure if they are all correct:
pending-4.19/0931-w1-gpio-fix-problem-with-platfom-data-in-w1-gpio.patch
pending-4.19/411-mtd-partial_eraseblock_write.patch
pending-4.19/600-netfilter_conntrack_flush.patch
pending-4.19/611-netfilter_match_bypass_default_table.patch
pending-4.19/670-ipv6-allow-rejecting-with-source-address-failed-policy.patch
hack-4.19/211-host_tools_portability.patch
hack-4.19/221-module_exports.patch
hack-4.19/321-powerpc_crtsavres_prereq.patch
hack-4.19/902-debloat_proc.patch

This is based on patchset from Marko Ratkaj <marko.ratkaj@sartura.hr>

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

1 files changed, 18 insertions, 25 deletions

diff --git a/target/linux/generic/pending-4.19/600-netfilter_conntrack_flush.patch b/target/linux/generic/pending-4.19/600-netfilter_conntrack_flush.patch
index 10da96b7ed..fa32f88e17 100644
--- a/target/linux/generic/pending-4.19/600-netfilter_conntrack_flush.patch
+++ b/target/linux/generic/pending-4.19/600-netfilter_conntrack_flush.patch
@@ -9,7 +9,7 @@ Signed-off-by: Felix Fietkau <nbd@nbd.name>
 
 --- a/net/netfilter/nf_conntrack_standalone.c
 +++ b/net/netfilter/nf_conntrack_standalone.c
-@@ -17,6 +17,7 @@
+@@ -9,6 +9,7 @@
  #include <linux/percpu.h>
  #include <linux/netdevice.h>
  #include <linux/security.h>
@@ -17,8 +17,8 @@ Signed-off-by: Felix Fietkau <nbd@nbd.name>
  #include <net/net_namespace.h>
  #ifdef CONFIG_SYSCTL
  #include <linux/sysctl.h>
-@@ -381,10 +382,66 @@ static int ct_open(struct inode *inode,
- 			sizeof(struct ct_iter_state));
+@@ -433,6 +434,56 @@ static int ct_cpu_seq_show(struct seq_fi
+ 	return 0;
  }
  
 +struct kill_request {
@@ -44,13 +44,11 @@ Signed-off-by: Felix Fietkau <nbd@nbd.name>
 +	        nf_inet_addr_cmp(&kr->addr, &t2->dst.u3));
 +}
 +
-+static ssize_t ct_file_write(struct file *file, const char __user *buf,
-+			     size_t count, loff_t *ppos)
++static int ct_file_write(struct file *file, char *buf, size_t count)
 +{
 +	struct seq_file *seq = file->private_data;
 +	struct net *net = seq_file_net(seq);
 +	struct kill_request kr = { };
-+	char req[INET6_ADDRSTRLEN] = { };
 +
 +	if (count == 0)
 +		return 0;
@@ -58,38 +56,33 @@ Signed-off-by: Felix Fietkau <nbd@nbd.name>
 +	if (count >= INET6_ADDRSTRLEN)
 +		count = INET6_ADDRSTRLEN - 1;
 +
-+	if (copy_from_user(req, buf, count))
-+		return -EFAULT;
-+
-+	if (strnchr(req, count, ':')) {
++	if (strnchr(buf, count, ':')) {
 +		kr.family = AF_INET6;
-+		if (!in6_pton(req, count, (void *)&kr.addr, '\n', NULL))
++		if (!in6_pton(buf, count, (void *)&kr.addr, '\n', NULL))
 +			return -EINVAL;
-+	} else if (strnchr(req, count, '.')) {
++	} else if (strnchr(buf, count, '.')) {
 +		kr.family = AF_INET;
-+		if (!in4_pton(req, count, (void *)&kr.addr, '\n', NULL))
++		if (!in4_pton(buf, count, (void *)&kr.addr, '\n', NULL))
 +			return -EINVAL;
 +	}
 +
 +	nf_ct_iterate_cleanup_net(net, kill_matching, &kr, 0, 0);
 +
-+	return count;
++	return 0;
 +}
 +
- static const struct file_operations ct_file_ops = {
- 	.owner   = THIS_MODULE,
- 	.open    = ct_open,
- 	.read    = seq_read,
-+	.write	 = ct_file_write,
- 	.llseek  = seq_lseek,
- 	.release = seq_release_net,
- };
-@@ -488,7 +545,7 @@ static int nf_conntrack_standalone_init_
+ static const struct seq_operations ct_cpu_seq_ops = {
+ 	.start	= ct_cpu_seq_start,
+ 	.next	= ct_cpu_seq_next,
+@@ -446,8 +497,9 @@ static int nf_conntrack_standalone_init_
  	kuid_t root_uid;
  	kgid_t root_gid;
  
--	pde = proc_create("nf_conntrack", 0440, net->proc_net, &ct_file_ops);
-+	pde = proc_create("nf_conntrack", 0660, net->proc_net, &ct_file_ops);
+-	pde = proc_create_net("nf_conntrack", 0440, net->proc_net, &ct_seq_ops,
+-			sizeof(struct ct_iter_state));
++	pde = proc_create_net_data_write("nf_conntrack", 0440, net->proc_net,
++					 &ct_seq_ops, &ct_file_write,
++					 sizeof(struct ct_iter_state), NULL);
  	if (!pde)
  		goto out_nf_conntrack;