Fix bluetooth chip initialization on some macbooks (FS#45554).

- Fix kernel oops when booting with root on RAID1 LVM (FS#45548).

0001-Bluetooth-btbcm-allow-btbcm_read_verbose_config-to-f.patch

@@ -0,0 +1,48 @@
+From 7bee8b08c428b63aa4a3765bb907602e36355378 Mon Sep 17 00:00:00 2001
+From: Chris Mason <clm@fb.com>
+Date: Tue, 14 Jul 2015 16:25:30 -0400
+Subject: [PATCH] Bluetooth: btbcm: allow btbcm_read_verbose_config to fail on
+ Apple
+
+Commit 1c8ba6d013 moved around the setup code for broadcomm chips,
+and also added btbcm_read_verbose_config() to read extra information
+about the hardware.  It's returning errors on some macbooks:
+
+Bluetooth: hci0: BCM: Read verbose config info failed (-16)
+
+Which makes us error out of the setup function.  Since this
+probe isn't critical to operate the chip, this patch just changes
+things to carry on when it fails.
+
+Signed-off-by: Chris Mason <clm@fb.com>
+Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
+Cc: stable@vger.kernel.org # v4.1
+---
+ drivers/bluetooth/btbcm.c | 11 +++++------
+ 1 file changed, 5 insertions(+), 6 deletions(-)
+
+diff --git a/drivers/bluetooth/btbcm.c b/drivers/bluetooth/btbcm.c
+index 1e1a432..9ceb8ac 100644
+--- a/drivers/bluetooth/btbcm.c
++++ b/drivers/bluetooth/btbcm.c
+@@ -472,12 +472,11 @@ int btbcm_setup_apple(struct hci_dev *hdev)
+ 
+ 	/* Read Verbose Config Version Info */
+ 	skb = btbcm_read_verbose_config(hdev);
+-	if (IS_ERR(skb))
+-		return PTR_ERR(skb);
+-
+-	BT_INFO("%s: BCM: chip id %u build %4.4u", hdev->name, skb->data[1],
+-		get_unaligned_le16(skb->data + 5));
+-	kfree_skb(skb);
++	if (!IS_ERR(skb)) {
++		BT_INFO("%s: BCM: chip id %u build %4.4u", hdev->name, skb->data[1],
++			get_unaligned_le16(skb->data + 5));
++		kfree_skb(skb);
++	}
+ 
+ 	set_bit(HCI_QUIRK_STRICT_DUPLICATE_FILTER, &hdev->quirks);
+ 
+-- 
+2.4.5
+

PKGBUILD

@@ -5,7 +5,7 @@ pkgbase=linux               # Build stock -ARCH kernel
 #pkgbase=linux-custom       # Build kernel with a different name
 _srcname=linux-4.1
 pkgver=4.1.2
-pkgrel=1
+pkgrel=2
 arch=('i686' 'x86_64')
 url="http://www.kernel.org/"
 license=('GPL2')
@@ -21,6 +21,8 @@ source=("https://www.kernel.org/pub/linux/kernel/v4.x/${_srcname}.tar.xz"
         'linux.preset'
         '0001-block-loop-convert-to-per-device-workqueue.patch'
         '0002-block-loop-avoiding-too-many-pending-per-work-I-O.patch'
+        '0001-Bluetooth-btbcm-allow-btbcm_read_verbose_config-to-f.patch'
+        'bitmap-enable-booting-for-dm-md-raid1.patch'
         'change-default-console-loglevel.patch')
 sha256sums=('caf51f085aac1e1cea4d00dbbf3093ead07b551fc07b31b2a989c05f8ea72d9f'
             'SKIP'
@@ -31,6 +33,8 @@ sha256sums=('caf51f085aac1e1cea4d00dbbf3093ead07b551fc07b31b2a989c05f8ea72d9f'
             'f0d90e756f14533ee67afda280500511a62465b4f76adcc5effa95a40045179c'
             '9e1d3fd95d768a46353593f6678513839cedb98ee66e83d9323233104ec3b23f'
             'bbe3631c737ed8329a1b7a9610cc0a07330c14194da5e9afec7705e7f37eeb81'
+            '08f69d122021e1d13c31e5987c23021916a819846c47247b3f1cee2ef99d7f82'
+            '959c4d71b5dc50434eeecf3a8608758f57f111c6e999289c435b13fc8c6be5f0'
             '1256b241cd477b265a3c2d64bdc19ffe3c9bbcee82ea3994c590c2c76e767d99')
 validpgpkeys=(
               'ABAF11C65A2970B130ABE3C479BE3E4300411886' # Linus Torvalds
@@ -53,6 +57,15 @@ prepare() {
   patch -Np1 -i ../0001-block-loop-convert-to-per-device-workqueue.patch
   patch -Np1 -i ../0002-block-loop-avoiding-too-many-pending-per-work-I-O.patch
 
+  # Fix bluetooth chip initialization on some macbooks (FS#45554)
+  # http://marc.info/?l=linux-bluetooth&m=143690738728402&w=2
+  # https://bugzilla.kernel.org/show_bug.cgi?id=100651
+  patch -Np1 -i ../0001-Bluetooth-btbcm-allow-btbcm_read_verbose_config-to-f.patch
+
+  # Fix kernel oops when booting with root on RAID1 LVM (FS#45548)
+  # https://bugzilla.kernel.org/show_bug.cgi?id=100491#c24
+  patch -Np1 -i ../bitmap-enable-booting-for-dm-md-raid1.patch
+
   # set DEFAULT_CONSOLE_LOGLEVEL to 4 (same value as the 'quiet' kernel param)
   # remove this when a Kconfig knob is made available by upstream
   # (relevant patch sent upstream: https://lkml.org/lkml/2011/7/26/227)

bitmap-enable-booting-for-dm-md-raid1.patch

@@ -0,0 +1,83 @@
+Subject: [PATCH] Enable loading of bitmaps for dm-md-raid1.
+
+This is also a temporary hack to systems with junk in the rest
+of the bitmap super (instead of zeroes) to boot. This is done by
+checking mddev->sync_super (which is exclusively set by dm-raid)
+is null.
+
+These changes also include zeroing of most bitmap pages while
+allocating so we are sure that the junk is not coming from memory.
+
+Signed-off-by: Neil Brown <neilb@suse.de>
+Signed-off-by: Goldwyn Rodrigues <rgoldwyn@suse.com>
+---
+diff --git a/drivers/md/bitmap.c b/drivers/md/bitmap.c
+index 135a090..dfa5ef3 100644
+--- a/drivers/md/bitmap.c
++++ b/drivers/md/bitmap.c
+@@ -494,7 +494,7 @@ static int bitmap_new_disk_sb(struct bitmap *bitmap)
+ 	bitmap_super_t *sb;
+ 	unsigned long chunksize, daemon_sleep, write_behind;
+ 
+-	bitmap->storage.sb_page = alloc_page(GFP_KERNEL);
++	bitmap->storage.sb_page = alloc_page(GFP_KERNEL | __GFP_ZERO);
+ 	if (bitmap->storage.sb_page == NULL)
+ 		return -ENOMEM;
+ 	bitmap->storage.sb_page->index = 0;
+@@ -541,6 +541,7 @@ static int bitmap_new_disk_sb(struct bitmap *bitmap)
+ 	sb->state = cpu_to_le32(bitmap->flags);
+ 	bitmap->events_cleared = bitmap->mddev->events;
+ 	sb->events_cleared = cpu_to_le64(bitmap->mddev->events);
++	bitmap->mddev->bitmap_info.nodes = 0;
+ 
+ 	kunmap_atomic(sb);
+ 
+@@ -568,7 +569,7 @@ static int bitmap_read_sb(struct bitmap *bitmap)
+ 		goto out_no_sb;
+ 	}
+ 	/* page 0 is the superblock, read it... */
+-	sb_page = alloc_page(GFP_KERNEL);
++	sb_page = alloc_page(GFP_KERNEL | __GFP_ZERO);
+ 	if (!sb_page)
+ 		return -ENOMEM;
+ 	bitmap->storage.sb_page = sb_page;
+@@ -611,8 +612,15 @@ re_read:
+ 	daemon_sleep = le32_to_cpu(sb->daemon_sleep) * HZ;
+ 	write_behind = le32_to_cpu(sb->write_behind);
+ 	sectors_reserved = le32_to_cpu(sb->sectors_reserved);
+-	nodes = le32_to_cpu(sb->nodes);
+-	strlcpy(bitmap->mddev->bitmap_info.cluster_name, sb->cluster_name, 64);
++	/* XXX: This is an ugly hack to ensure that we don't use clustering
++	   in case dm-raid is in use and the nodes written in bitmap_sb
++	   is erroneous.
++	*/
++	if (!bitmap->mddev->sync_super) {
++		nodes = le32_to_cpu(sb->nodes);
++		strlcpy(bitmap->mddev->bitmap_info.cluster_name,
++				sb->cluster_name, 64);
++	}
+ 
+ 	/* verify that the bitmap-specific fields are valid */
+ 	if (sb->magic != cpu_to_le32(BITMAP_MAGIC))
+@@ -649,7 +657,7 @@ re_read:
+ 			goto out;
+ 		}
+ 		events = le64_to_cpu(sb->events);
+-		if (!nodes && (events < bitmap->mddev->events)) {
++		if (err == 0 && !nodes && (events < bitmap->mddev->events)) {
+ 			printk(KERN_INFO
+ 			       "%s: bitmap file is out of date (%llu < %llu) "
+ 			       "-- forcing full recovery\n",
+diff --git a/drivers/md/md.c b/drivers/md/md.c
+index 4dbed4a..6bd8bc3 100644
+--- a/drivers/md/md.c
++++ b/drivers/md/md.c
+@@ -7415,7 +7415,7 @@ int md_setup_cluster(struct mddev *mddev, int nodes)
+ 	err = request_module("md-cluster");
+ 	if (err) {
+ 		pr_err("md-cluster module not found.\n");
+-		return err;
++		return -ENOENT;
+ 	}
+ 
+ 	spin_lock(&pers_lock);