kernel: update kernel 4.4 to version 4.4.69

Refresh patches. A number of patches have landed upstream & hence are no
longer required locally:

062-[1-6]-MIPS-* series
042-0004-mtd-bcm47xxpart-fix-parsing-first-block

Reintroduced lantiq/patches-4.4/0050-MIPS-Lantiq-Fix-cascaded-IRQ-setup
as it was incorrectly included upstream thus dropped from LEDE.
As it has now been reverted upstream it needs to be included again for
LEDE.

Run tested ar71xx Archer C7 v2 and lantiq.

Signed-off-by: Kevin Darbyshire-Bryant <kevin@darbyshire-bryant.me.uk>
[update from 4.4.68 to 4.4.69]
Signed-off-by: Hauke Mehrtens <hauke@hauke-m.de>

1 files changed, 0 insertions, 70 deletions

diff --git a/target/linux/generic/patches-4.4/062-01-MIPS-Introduce-irq_stack.patch b/target/linux/generic/patches-4.4/062-01-MIPS-Introduce-irq_stack.patch
deleted file mode 100644
index 2a929aa7e1..0000000000
--- a/target/linux/generic/patches-4.4/062-01-MIPS-Introduce-irq_stack.patch
+++ /dev/null
@@ -1,70 +0,0 @@
-From: Matt Redfearn <matt.redfearn@imgtec.com>
-Date: Mon, 19 Dec 2016 14:20:56 +0000
-Subject: [PATCH] MIPS: Introduce irq_stack
-
-Allocate a per-cpu irq stack for use within interrupt handlers.
-
-Also add a utility function on_irq_stack to determine if a given stack
-pointer is within the irq stack for that cpu.
-
-Signed-off-by: Matt Redfearn <matt.redfearn@imgtec.com>
----
-
---- a/arch/mips/include/asm/irq.h
-+++ b/arch/mips/include/asm/irq.h
-@@ -17,6 +17,18 @@
- 
- #include <irq.h>
- 
-+#define IRQ_STACK_SIZE			THREAD_SIZE
-+
-+extern void *irq_stack[NR_CPUS];
-+
-+static inline bool on_irq_stack(int cpu, unsigned long sp)
-+{
-+	unsigned long low = (unsigned long)irq_stack[cpu];
-+	unsigned long high = low + IRQ_STACK_SIZE;
-+
-+	return (low <= sp && sp <= high);
-+}
-+
- #ifdef CONFIG_I8259
- static inline int irq_canonicalize(int irq)
- {
---- a/arch/mips/kernel/asm-offsets.c
-+++ b/arch/mips/kernel/asm-offsets.c
-@@ -101,6 +101,7 @@ void output_thread_info_defines(void)
- 	OFFSET(TI_REGS, thread_info, regs);
- 	DEFINE(_THREAD_SIZE, THREAD_SIZE);
- 	DEFINE(_THREAD_MASK, THREAD_MASK);
-+	DEFINE(_IRQ_STACK_SIZE, IRQ_STACK_SIZE);
- 	BLANK();
- }
- 
---- a/arch/mips/kernel/irq.c
-+++ b/arch/mips/kernel/irq.c
-@@ -25,6 +25,8 @@
- #include <linux/atomic.h>
- #include <asm/uaccess.h>
- 
-+void *irq_stack[NR_CPUS];
-+
- /*
-  * 'what should we do if we get a hw irq event on an illegal vector'.
-  * each architecture has to answer this themselves.
-@@ -55,6 +57,15 @@ void __init init_IRQ(void)
- 		irq_set_noprobe(i);
- 
- 	arch_init_irq();
-+
-+	for_each_possible_cpu(i) {
-+		int irq_pages = IRQ_STACK_SIZE / PAGE_SIZE;
-+		void *s = (void *)__get_free_pages(GFP_KERNEL, irq_pages);
-+
-+		irq_stack[i] = s;
-+		pr_debug("CPU%d IRQ stack at 0x%p - 0x%p\n", i,
-+			irq_stack[i], irq_stack[i] + IRQ_STACK_SIZE);
-+	}
- }
- 
- #ifdef CONFIG_DEBUG_STACKOVERFLOW