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, 0 insertions, 91 deletions

diff --git a/target/linux/generic/backport-4.19/290-v4.16-netfilter-core-make-nf_unregister_net_hooks-simple-w.patch b/target/linux/generic/backport-4.19/290-v4.16-netfilter-core-make-nf_unregister_net_hooks-simple-w.patch
deleted file mode 100644
index 35800c4acf..0000000000
--- a/target/linux/generic/backport-4.19/290-v4.16-netfilter-core-make-nf_unregister_net_hooks-simple-w.patch
+++ /dev/null
@@ -1,91 +0,0 @@
-From 4e645b47c4f000a503b9c90163ad905786b9bc1d Mon Sep 17 00:00:00 2001
-From: Florian Westphal <fw@strlen.de>
-Date: Fri, 1 Dec 2017 00:21:02 +0100
-Subject: [PATCH 02/11] netfilter: core: make nf_unregister_net_hooks simple
- wrapper again
-
-This reverts commit d3ad2c17b4047
-("netfilter: core: batch nf_unregister_net_hooks synchronize_net calls").
-
-Nothing wrong with it.  However, followup patch will delay freeing of hooks
-with call_rcu, so all synchronize_net() calls become obsolete and there
-is no need anymore for this batching.
-
-This revert causes a temporary performance degradation when destroying
-network namespace, but its resolved with the upcoming call_rcu conversion.
-
-Signed-off-by: Florian Westphal <fw@strlen.de>
-Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
----
- net/netfilter/core.c | 59 +++-------------------------------------------------
- 1 file changed, 3 insertions(+), 56 deletions(-)
-
---- a/net/netfilter/core.c
-+++ b/net/netfilter/core.c
-@@ -395,63 +395,10 @@ EXPORT_SYMBOL(nf_register_net_hooks);
- void nf_unregister_net_hooks(struct net *net, const struct nf_hook_ops *reg,
- 			     unsigned int hookcount)
- {
--	struct nf_hook_entries *to_free[16], *p;
--	struct nf_hook_entries __rcu **pp;
--	unsigned int i, j, n;
-+	unsigned int i;
- 
--	mutex_lock(&nf_hook_mutex);
--	for (i = 0; i < hookcount; i++) {
--		pp = nf_hook_entry_head(net, &reg[i]);
--		if (!pp)
--			continue;
--
--		p = nf_entry_dereference(*pp);
--		if (WARN_ON_ONCE(!p))
--			continue;
--		__nf_unregister_net_hook(p, &reg[i]);
--	}
--	mutex_unlock(&nf_hook_mutex);
--
--	do {
--		n = min_t(unsigned int, hookcount, ARRAY_SIZE(to_free));
--
--		mutex_lock(&nf_hook_mutex);
--
--		for (i = 0, j = 0; i < hookcount && j < n; i++) {
--			pp = nf_hook_entry_head(net, &reg[i]);
--			if (!pp)
--				continue;
--
--			p = nf_entry_dereference(*pp);
--			if (!p)
--				continue;
--
--			to_free[j] = __nf_hook_entries_try_shrink(pp);
--			if (to_free[j])
--				++j;
--		}
--
--		mutex_unlock(&nf_hook_mutex);
--
--		if (j) {
--			unsigned int nfq;
--
--			synchronize_net();
--
--			/* need 2nd synchronize_net() if nfqueue is used, skb
--			 * can get reinjected right before nf_queue_hook_drop()
--			 */
--			nfq = nf_queue_nf_hook_drop(net);
--			if (nfq)
--				synchronize_net();
--
--			for (i = 0; i < j; i++)
--				kvfree(to_free[i]);
--		}
--
--		reg += n;
--		hookcount -= n;
--	} while (hookcount > 0);
-+	for (i = 0; i < hookcount; i++)
-+		nf_unregister_net_hook(net, &reg[i]);
- }
- EXPORT_SYMBOL(nf_unregister_net_hooks);
-