Merge 4.4.100 into android-4.4

Changes in 4.4.100
	media: imon: Fix null-ptr-deref in imon_probe
	media: dib0700: fix invalid dvb_detach argument
	ext4: fix data exposure after a crash
	KVM: x86: fix singlestepping over syscall
	bpf: don't let ldimm64 leak map addresses on unprivileged
	xen-blkback: don't leak stack data via response ring
	sctp: do not peel off an assoc from one netns to another one
	net: cdc_ether: fix divide by 0 on bad descriptors
	net: qmi_wwan: fix divide by 0 on bad descriptors
	arm: crypto: reduce priority of bit-sliced AES cipher
	Bluetooth: btusb: fix QCA Rome suspend/resume
	dmaengine: dmatest: warn user when dma test times out
	extcon: palmas: Check the parent instance to prevent the NULL
	fm10k: request reset when mbx->state changes
	ARM: dts: Fix compatible for ti81xx uarts for 8250
	ARM: dts: Fix am335x and dm814x scm syscon to probe children
	ARM: OMAP2+: Fix init for multiple quirks for the same SoC
	ARM: dts: Fix omap3 off mode pull defines
	ata: ATA_BMDMA should depend on HAS_DMA
	ata: SATA_HIGHBANK should depend on HAS_DMA
	ata: SATA_MV should depend on HAS_DMA
	drm/sti: sti_vtg: Handle return NULL error from devm_ioremap_nocache
	igb: reset the PHY before reading the PHY ID
	igb: close/suspend race in netif_device_detach
	igb: Fix hw_dbg logging in igb_update_flash_i210
	scsi: ufs-qcom: Fix module autoload
	scsi: ufs: add capability to keep auto bkops always enabled
	staging: rtl8188eu: fix incorrect ERROR tags from logs
	scsi: lpfc: Add missing memory barrier
	scsi: lpfc: FCoE VPort enable-disable does not bring up the VPort
	scsi: lpfc: Correct host name in symbolic_name field
	scsi: lpfc: Correct issue leading to oops during link reset
	scsi: lpfc: Clear the VendorVersion in the PLOGI/PLOGI ACC payload
	ALSA: vx: Don't try to update capture stream before running
	ALSA: vx: Fix possible transfer overflow
	backlight: lcd: Fix race condition during register
	backlight: adp5520: Fix error handling in adp5520_bl_probe()
	gpu: drm: mgag200: mgag200_main:- Handle error from pci_iomap
	ALSA: hda/realtek - Add new codec ID ALC299
	arm64: dts: NS2: reserve memory for Nitro firmware
	ixgbe: fix AER error handling
	ixgbe: handle close/suspend race with netif_device_detach/present
	ixgbe: Reduce I2C retry count on X550 devices
	ixgbe: add mask for 64 RSS queues
	ixgbe: do not disable FEC from the driver
	staging: rtl8712: fixed little endian problem
	MIPS: End asm function prologue macros with .insn
	mm: add PHYS_PFN, use it in __phys_to_pfn()
	MIPS: init: Ensure bootmem does not corrupt reserved memory
	MIPS: init: Ensure reserved memory regions are not added to bootmem
	MIPS: Netlogic: Exclude netlogic,xlp-pic code from XLR builds
	Revert "crypto: xts - Add ECB dependency"
	Revert "uapi: fix linux/rds.h userspace compilation errors"
	uapi: fix linux/rds.h userspace compilation error
	uapi: fix linux/rds.h userspace compilation errors
	USB: usbfs: compute urb->actual_length for isochronous
	USB: Add delay-init quirk for Corsair K70 LUX keyboards
	USB: serial: qcserial: add pid/vid for Sierra Wireless EM7355 fw update
	USB: serial: garmin_gps: fix I/O after failed probe and remove
	USB: serial: garmin_gps: fix memory leak on probe errors
	Linux 4.4.100

Signed-off-by: Greg Kroah-Hartman <gregkh@google.com>

1 files changed, 75 insertions, 3 deletions

diff --git a/arch/mips/kernel/setup.c b/arch/mips/kernel/setup.c
index 8acae316f26b..4f9f1ae49213 100644
--- a/arch/mips/kernel/setup.c
+++ b/arch/mips/kernel/setup.c
@@ -152,6 +152,35 @@ void __init detect_memory_region(phys_addr_t start, phys_addr_t sz_min, phys_add
 	add_memory_region(start, size, BOOT_MEM_RAM);
 }
 
+bool __init memory_region_available(phys_addr_t start, phys_addr_t size)
+{
+	int i;
+	bool in_ram = false, free = true;
+
+	for (i = 0; i < boot_mem_map.nr_map; i++) {
+		phys_addr_t start_, end_;
+
+		start_ = boot_mem_map.map[i].addr;
+		end_ = boot_mem_map.map[i].addr + boot_mem_map.map[i].size;
+
+		switch (boot_mem_map.map[i].type) {
+		case BOOT_MEM_RAM:
+			if (start >= start_ && start + size <= end_)
+				in_ram = true;
+			break;
+		case BOOT_MEM_RESERVED:
+			if ((start >= start_ && start < end_) ||
+			    (start < start_ && start + size >= start_))
+				free = false;
+			break;
+		default:
+			continue;
+		}
+	}
+
+	return in_ram && free;
+}
+
 static void __init print_memory_map(void)
 {
 	int i;
@@ -300,11 +329,19 @@ static void __init bootmem_init(void)
 
 #else  /* !CONFIG_SGI_IP27 */
 
+static unsigned long __init bootmap_bytes(unsigned long pages)
+{
+	unsigned long bytes = DIV_ROUND_UP(pages, 8);
+
+	return ALIGN(bytes, sizeof(long));
+}
+
 static void __init bootmem_init(void)
 {
 	unsigned long reserved_end;
 	unsigned long mapstart = ~0UL;
 	unsigned long bootmap_size;
+	bool bootmap_valid = false;
 	int i;
 
 	/*
@@ -385,11 +422,42 @@ static void __init bootmem_init(void)
 #endif
 
 	/*
-	 * Initialize the boot-time allocator with low memory only.
+	 * check that mapstart doesn't overlap with any of
+	 * memory regions that have been reserved through eg. DTB
 	 */
-	bootmap_size = init_bootmem_node(NODE_DATA(0), mapstart,
-					 min_low_pfn, max_low_pfn);
+	bootmap_size = bootmap_bytes(max_low_pfn - min_low_pfn);
+
+	bootmap_valid = memory_region_available(PFN_PHYS(mapstart),
+						bootmap_size);
+	for (i = 0; i < boot_mem_map.nr_map && !bootmap_valid; i++) {
+		unsigned long mapstart_addr;
+
+		switch (boot_mem_map.map[i].type) {
+		case BOOT_MEM_RESERVED:
+			mapstart_addr = PFN_ALIGN(boot_mem_map.map[i].addr +
+						boot_mem_map.map[i].size);
+			if (PHYS_PFN(mapstart_addr) < mapstart)
+				break;
+
+			bootmap_valid = memory_region_available(mapstart_addr,
+								bootmap_size);
+			if (bootmap_valid)
+				mapstart = PHYS_PFN(mapstart_addr);
+			break;
+		default:
+			break;
+		}
+	}
 
+	if (!bootmap_valid)
+		panic("No memory area to place a bootmap bitmap");
+
+	/*
+	 * Initialize the boot-time allocator with low memory only.
+	 */
+	if (bootmap_size != init_bootmem_node(NODE_DATA(0), mapstart,
+					 min_low_pfn, max_low_pfn))
+		panic("Unexpected memory size required for bootmap");
 
 	for (i = 0; i < boot_mem_map.nr_map; i++) {
 		unsigned long start, end;
@@ -438,6 +506,10 @@ static void __init bootmem_init(void)
 			continue;
 		default:
 			/* Not usable memory */
+			if (start > min_low_pfn && end < max_low_pfn)
+				reserve_bootmem(boot_mem_map.map[i].addr,
+						boot_mem_map.map[i].size,
+						BOOTMEM_DEFAULT);
 			continue;
 		}