Merge 4.4.190 into android-4.4-p

Changes in 4.4.190
	usb: iowarrior: fix deadlock on disconnect
	sound: fix a memory leak bug
	x86/mm: Check for pfn instead of page in vmalloc_sync_one()
	x86/mm: Sync also unmappings in vmalloc_sync_all()
	mm/vmalloc: Sync unmappings in __purge_vmap_area_lazy()
	perf db-export: Fix thread__exec_comm()
	usb: yurex: Fix use-after-free in yurex_delete
	can: peak_usb: fix potential double kfree_skb()
	netfilter: nfnetlink: avoid deadlock due to synchronous request_module
	iscsi_ibft: make ISCSI_IBFT dependson ACPI instead of ISCSI_IBFT_FIND
	mac80211: don't warn about CW params when not using them
	hwmon: (nct6775) Fix register address and added missed tolerance for nct6106
	cpufreq/pasemi: fix use-after-free in pas_cpufreq_cpu_init()
	s390/qdio: add sanity checks to the fast-requeue path
	ALSA: compress: Fix regression on compressed capture streams
	ALSA: compress: Prevent bypasses of set_params
	ALSA: compress: Be more restrictive about when a drain is allowed
	perf probe: Avoid calling freeing routine multiple times for same pointer
	ARM: davinci: fix sleep.S build error on ARMv4
	scsi: megaraid_sas: fix panic on loading firmware crashdump
	scsi: ibmvfc: fix WARN_ON during event pool release
	tty/ldsem, locking/rwsem: Add missing ACQUIRE to read_failed sleep loop
	perf/core: Fix creating kernel counters for PMUs that override event->cpu
	can: peak_usb: pcan_usb_pro: Fix info-leaks to USB devices
	can: peak_usb: pcan_usb_fd: Fix info-leaks to USB devices
	hwmon: (nct7802) Fix wrong detection of in4 presence
	ALSA: firewire: fix a memory leak bug
	mac80211: don't WARN on short WMM parameters from AP
	SMB3: Fix deadlock in validate negotiate hits reconnect
	smb3: send CAP_DFS capability during session setup
	mwifiex: fix 802.11n/WPA detection
	scsi: mpt3sas: Use 63-bit DMA addressing on SAS35 HBA
	sh: kernel: hw_breakpoint: Fix missing break in switch statement
	usb: gadget: f_midi: fail if set_alt fails to allocate requests
	USB: gadget: f_midi: fixing a possible double-free in f_midi
	mm/memcontrol.c: fix use after free in mem_cgroup_iter()
	ALSA: hda - Fix a memory leak bug
	HID: holtek: test for sanity of intfdata
	HID: hiddev: avoid opening a disconnected device
	HID: hiddev: do cleanup in failure of opening a device
	Input: kbtab - sanity check for endpoint type
	Input: iforce - add sanity checks
	net: usb: pegasus: fix improper read if get_registers() fail
	xen/pciback: remove set but not used variable 'old_state'
	irqchip/irq-imx-gpcv2: Forward irq type to parent
	perf header: Fix divide by zero error if f_header.attr_size==0
	perf header: Fix use of unitialized value warning
	libata: zpodd: Fix small read overflow in zpodd_get_mech_type()
	scsi: hpsa: correct scsi command status issue after reset
	ata: libahci: do not complain in case of deferred probe
	kbuild: modpost: handle KBUILD_EXTRA_SYMBOLS only for external modules
	IB/core: Add mitigation for Spectre V1
	ocfs2: remove set but not used variable 'last_hash'
	asm-generic: fix -Wtype-limits compiler warnings
	staging: comedi: dt3000: Fix signed integer overflow 'divider * base'
	staging: comedi: dt3000: Fix rounding up of timer divisor
	USB: core: Fix races in character device registration and deregistraion
	usb: cdc-acm: make sure a refcount is taken early enough
	USB: serial: option: add D-Link DWM-222 device ID
	USB: serial: option: Add support for ZTE MF871A
	USB: serial: option: add the BroadMobi BM818 card
	USB: serial: option: Add Motorola modem UARTs
	Backport minimal compiler_attributes.h to support GCC 9
	include/linux/module.h: copy __init/__exit attrs to init/cleanup_module
	arm64: compat: Allow single-byte watchpoints on all addresses
	Input: psmouse - fix build error of multiple definition
	asm-generic: default BUG_ON(x) to if(x)BUG()
	scsi: fcoe: Embed fc_rport_priv in fcoe_rport structure
	RDMA: Directly cast the sockaddr union to sockaddr
	IB/mlx5: Make coding style more consistent
	x86/vdso: Remove direct HPET access through the vDSO
	iommu/amd: Move iommu_init_pci() to .init section
	x86/boot: Disable the address-of-packed-member compiler warning
	net/packet: fix race in tpacket_snd()
	xen/netback: Reset nr_frags before freeing skb
	net/mlx5e: Only support tx/rx pause setting for port owner
	sctp: fix the transport error_count check
	bonding: Add vlan tx offload to hw_enc_features
	Linux 4.4.190

Change-Id: Ic4094fbac2f9b8f6d4a9b4397e82471f40424332
Signed-off-by: Greg Kroah-Hartman <gregkh@google.com>

1 files changed, 6 insertions, 6 deletions

diff --git a/drivers/s390/cio/qdio_main.c b/drivers/s390/cio/qdio_main.c
index 8d7fc3b6ca63..adf322a86a01 100644
--- a/drivers/s390/cio/qdio_main.c
+++ b/drivers/s390/cio/qdio_main.c
@@ -1576,13 +1576,13 @@ static int handle_outbound(struct qdio_q *q, unsigned int callflags,
 		rc = qdio_kick_outbound_q(q, phys_aob);
 	} else if (need_siga_sync(q)) {
 		rc = qdio_siga_sync_q(q);
+	} else if (count < QDIO_MAX_BUFFERS_PER_Q &&
+		   get_buf_state(q, prev_buf(bufnr), &state, 0) > 0 &&
+		   state == SLSB_CU_OUTPUT_PRIMED) {
+		/* The previous buffer is not processed yet, tack on. */
+		qperf_inc(q, fast_requeue);
 	} else {
-		/* try to fast requeue buffers */
-		get_buf_state(q, prev_buf(bufnr), &state, 0);
-		if (state != SLSB_CU_OUTPUT_PRIMED)
-			rc = qdio_kick_outbound_q(q, 0);
-		else
-			qperf_inc(q, fast_requeue);
+		rc = qdio_kick_outbound_q(q, 0);
 	}
 
 	/* in case of SIGA errors we must process the error immediately */