From fdb8b20906f3546ba6c2f9f0686d8a5189516ba3 Mon Sep 17 00:00:00 2001
From: José Pekkarinen <jose.pekkarinen@nokia.com>
Date: Fri, 9 Oct 2015 08:42:44 +0300
Subject: Kernel bump from 4.1.3-rt to 4.1.7-rt.
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These changes brings a vanilla kernel from kernel.org, and the patch
applied for rt is patch-4.1.7-rt8.patch. No further changes needed.

Change-Id: Id8dd03c2ddd971e4d1d69b905f3069737053b700
Signed-off-by: José Pekkarinen <jose.pekkarinen@nokia.com>
---
 kernel/lib/bitmap.c     | 17 +++++++++--------
 kernel/lib/dma-debug.c  |  3 +++
 kernel/lib/dump_stack.c |  4 ++--
 3 files changed, 14 insertions(+), 10 deletions(-)

(limited to 'kernel/lib')

diff --git a/kernel/lib/bitmap.c b/kernel/lib/bitmap.c
index 64c0926f5..40162f87e 100644
--- a/kernel/lib/bitmap.c
+++ b/kernel/lib/bitmap.c
@@ -506,12 +506,12 @@ static int __bitmap_parselist(const char *buf, unsigned int buflen,
 	unsigned a, b;
 	int c, old_c, totaldigits;
 	const char __user __force *ubuf = (const char __user __force *)buf;
-	int exp_digit, in_range;
+	int at_start, in_range;
 
 	totaldigits = c = 0;
 	bitmap_zero(maskp, nmaskbits);
 	do {
-		exp_digit = 1;
+		at_start = 1;
 		in_range = 0;
 		a = b = 0;
 
@@ -540,11 +540,10 @@ static int __bitmap_parselist(const char *buf, unsigned int buflen,
 				break;
 
 			if (c == '-') {
-				if (exp_digit || in_range)
+				if (at_start || in_range)
 					return -EINVAL;
 				b = 0;
 				in_range = 1;
-				exp_digit = 1;
 				continue;
 			}
 
@@ -554,16 +553,18 @@ static int __bitmap_parselist(const char *buf, unsigned int buflen,
 			b = b * 10 + (c - '0');
 			if (!in_range)
 				a = b;
-			exp_digit = 0;
+			at_start = 0;
 			totaldigits++;
 		}
 		if (!(a <= b))
 			return -EINVAL;
 		if (b >= nmaskbits)
 			return -ERANGE;
-		while (a <= b) {
-			set_bit(a, maskp);
-			a++;
+		if (!at_start) {
+			while (a <= b) {
+				set_bit(a, maskp);
+				a++;
+			}
 		}
 	} while (buflen && c == ',');
 	return 0;
diff --git a/kernel/lib/dma-debug.c b/kernel/lib/dma-debug.c
index ae4b65e17..dace71fe4 100644
--- a/kernel/lib/dma-debug.c
+++ b/kernel/lib/dma-debug.c
@@ -574,6 +574,9 @@ void debug_dma_assert_idle(struct page *page)
 	unsigned long flags;
 	phys_addr_t cln;
 
+	if (dma_debug_disabled())
+		return;
+
 	if (!page)
 		return;
 
diff --git a/kernel/lib/dump_stack.c b/kernel/lib/dump_stack.c
index 6745c6230..7ccbc6ff8 100644
--- a/kernel/lib/dump_stack.c
+++ b/kernel/lib/dump_stack.c
@@ -33,7 +33,7 @@ asmlinkage __visible void dump_stack(void)
 	 * Permit this cpu to perform nested stack dumps while serialising
 	 * against other CPUs
 	 */
-	preempt_disable();
+	migrate_disable();
 
 retry:
 	cpu = smp_processor_id();
@@ -52,7 +52,7 @@ retry:
 	if (!was_locked)
 		atomic_set(&dump_lock, -1);
 
-	preempt_enable();
+	migrate_enable();
 }
 #else
 asmlinkage __visible void dump_stack(void)
-- 
cgit 1.2.3-korg