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linux-uconsole/drivers
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Andy Shevchenko 556dfd8dae dmaengine: dw: disable BLOCK IRQs for non-cyclic xfer 
commit ee1cdcdae5 upstream.

The commit 2895b2cad6 ("dmaengine: dw: fix cyclic transfer callbacks")
re-enabled BLOCK interrupts with regard to make cyclic transfers work. However,
this change becomes a regression for non-cyclic transfers as interrupt counters
under stress test had been grown enormously (approximately per 4-5 bytes in the
UART loop back test).

Taking into consideration above enable BLOCK interrupts if and only if channel
is programmed to perform cyclic transfer.

Fixes: 2895b2cad6 ("dmaengine: dw: fix cyclic transfer callbacks")
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Acked-by: Mans Rullgard <mans@mansr.com>
Tested-by: Mans Rullgard <mans@mansr.com>
Acked-by: Viresh Kumar <viresh.kumar@linaro.org>
Signed-off-by: Vinod Koul <vinod.koul@intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2016-03-03 15:07:24 -08:00
..
accessibility
acpi nfit: fix multi-interface dimm handling, acpi6.1 compatibility 2016-03-03 15:07:24 -08:00
amba
android drivers: android: correct the size of struct binder_uintptr_t for BC_DEAD_BINDER_DONE 2016-03-03 15:07:10 -08:00
ata ahci: Intel DNV device IDs SATA 2016-02-17 12:31:03 -08:00
atm
auxdisplay
base base/platform: Fix platform drivers with no probe callback 2016-02-17 12:30:55 -08:00
bcma
block zram: don't call idr_remove() from zram_remove() 2016-02-17 12:31:06 -08:00
bluetooth Bluetooth: Add support of Toshiba Broadcom based devices 2016-03-03 15:07:16 -08:00
bus bus: sunxi-rsb: Fix peripheral IC mapping runtime address 2015-12-22 11:42:30 -08:00
cdrom
char ipmi: move timer init to before irq is setup 2015-12-09 13:13:06 -06:00
clk clk: exynos: use irqsave version of spin_lock to avoid deadlock with irqs 2016-03-03 15:07:17 -08:00
clocksource clockevents/tcb_clksrc: Prevent disabling an already disabled clock 2016-03-03 15:07:15 -08:00
connector connector: bump skb->users before callback invocation 2016-01-04 21:46:45 -05:00
cpufreq cpufreq: scpi-cpufreq: signedness bug in scpi_get_dvfs_info() 2015-12-24 02:11:37 +01:00
cpuidle
crypto crypto: marvell/cesa - fix test in mv_cesa_dev_dma_init() 2016-02-17 12:31:05 -08:00
dca
devfreq
dio
dma dmaengine: dw: disable BLOCK IRQs for non-cyclic xfer 2016-03-03 15:07:24 -08:00
dma-buf
edac EDAC, mc_sysfs: Fix freeing bus' name 2016-03-03 15:07:17 -08:00
eisa
extcon
firewire IEEE 1394 subsystem patch: 2015-11-11 10:21:34 -08:00
firmware efi: Add pstore variables to the deletion whitelist 2016-03-03 15:07:09 -08:00
fmc
fpga fpga manager: Fix firmware resource leak on error 2015-11-24 15:25:46 -08:00
gpio gpio: revert get() to non-errorprogating behaviour 2015-12-17 15:48:29 +01:00
gpu drm/radeon/pm: adjust display configuration after powerstate 2016-03-03 15:07:23 -08:00
hid HID: multitouch: fix input mode switching on some Elan panels 2016-02-17 12:31:06 -08:00
hsi
hv Drivers: hv: vmbus: Fix a Host signaling bug 2016-03-03 15:07:16 -08:00
hwmon hwmon: (sht15) Select CONFIG_BITREVERSE 2015-12-18 08:19:52 -08:00
hwspinlock drivers/hwspinlock: fix race between radix tree insertion and lookup 2016-02-25 12:01:23 -08:00
hwtracing coresight: checking for NULL string in coresight_name_match() 2016-03-03 15:07:14 -08:00
i2c i2c: rcar: disable runtime PM correctly in slave mode 2015-12-19 12:00:37 +01:00
ide
idle
iio iio: inkern: fix a NULL dereference on error 2016-02-25 12:01:17 -08:00
infiniband iw_cxgb3: Fix incorrectly returning error on success 2016-03-03 15:07:10 -08:00
input Input: vmmouse - fix absolute device registration 2016-02-25 12:01:21 -08:00
iommu iommu/vt-d: Clear PPR bit to ensure we get more page request interrupts 2016-02-25 12:01:22 -08:00
ipack
irqchip irqchip/gic-v3-its: Fix double ICC_EOIR write for LPI in EOImode==1 2016-03-03 15:07:14 -08:00
isdn ser_gigaset: remove unnecessary kfree() calls from release method 2015-12-15 13:24:21 -05:00
leds
lguest
lightnvm lightnvm: wrong offset in bad blk lun calculation 2015-12-29 08:28:32 -07:00
macintosh
mailbox
mcb
md dm: fix dm_rq_target_io leak on faults with .request_fn DM w/ blk-mq paths 2016-03-03 15:07:14 -08:00
media tda1004x: only update the frontend properties if locked 2016-03-03 15:07:14 -08:00
memory fsl-ifc: add missing include on ARM64 2015-12-16 00:16:58 +01:00
memstick
message SCSI queue for 4.4. 2015-11-12 07:06:18 -05:00
mfd
misc cxl: use correct operator when writing pcie config space values 2016-03-03 15:07:17 -08:00
mmc mmc: sdhci: Allow override of get_cd() called from sdhci_request() 2016-03-03 15:07:16 -08:00
mtd mtd: nand: assign reasonable default name for NAND drivers 2016-02-17 12:30:56 -08:00
net rtlwifi: rtl8723be: Fix module parameter initialization 2016-03-03 15:07:13 -08:00
nfc Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net 2015-11-10 18:11:41 -08:00
ntb
nubus
nvdimm libnvdimm: fix namespace object confusion in is_uuid_busy() 2016-02-25 12:01:21 -08:00
nvme NVMe: IO ending fixes on surprise removal 2015-12-22 10:12:04 -07:00
nvmem
of of/irq: Export of_irq_find_parent again 2015-12-09 09:08:36 -06:00
oprofile
parisc parisc iommu: fix panic due to trying to allocate too large region 2015-12-12 16:07:25 +01:00
parport
pci ACPI / PCI / hotplug: unlock in error path in acpiphp_enable_slot() 2016-03-03 15:07:24 -08:00
pcmcia
perf
phy phy: twl4030-usb: Fix unbalanced pm_runtime_enable on module reload 2016-02-25 12:01:14 -08:00
pinctrl pinctrl: bcm2835: Fix initial value for direction_output 2015-12-14 11:31:20 +01:00
platform ideapad-laptop: Add Lenovo Yoga 700 to no_hw_rfkill dmi list 2016-03-03 15:07:24 -08:00
pnp
power
powercap powercap / RAPL: fix BIOS lock check 2015-12-12 02:31:11 +01:00
pps
ps3
ptp
pwm pwm: Changes for v4.4-rc1 2015-11-11 09:16:10 -08:00
rapidio
ras
regulator regulator: mt6311: MT6311_REGULATOR needs to select REGMAP_I2C 2016-03-03 15:07:17 -08:00
remoteproc remoteproc: fix memory leak of remoteproc ida cache layers 2015-11-26 17:44:28 +02:00
reset
rpmsg
rtc rtc: da9063: fix access ordering error during RTC interrupt at system power on 2015-12-20 13:39:29 +01:00
s390 s390/dasd: fix performance drop 2016-03-03 15:07:12 -08:00
sbus
scsi scsi: fix soft lockup in scsi_remove_target() on module removal 2016-02-25 12:01:17 -08:00
sfi
sh drivers: sh: Get rid of CONFIG_ARCH_SHMOBILE_MULTI 2015-11-17 02:12:46 +09:00
sn
soc Few Keystone fixes for 4.4-rcx 2015-11-25 23:48:12 +01:00
spi spi: omap2-mcspi: Prevent duplicate gpio_request 2016-03-03 15:07:10 -08:00
spmi
ssb
staging staging/speakup: Use tty_ldisc_ref() for paste kworker 2016-02-25 12:01:14 -08:00
target iscsi-target: Fix potential dead-lock during node acl delete 2016-02-25 12:01:16 -08:00
tc
thermal imx: thermal: use CPU temperature grade info for thresholds 2015-11-23 16:38:40 -08:00
thunderbolt
tty serial: omap: Prevent DoS using unprivileged ioctl(TIOCSRS485) 2016-02-25 12:01:14 -08:00
uio
usb USB: option: add "4G LTE usb-modem U901" 2016-03-03 15:07:10 -08:00
uwb
vfio Revert: "vfio: Include No-IOMMU mode" 2015-12-04 08:38:42 -07:00
vhost vhost: replace % with & on data path 2015-12-07 17:28:10 +02:00
video OMAPDSS: fix timings for VENC to match what omapdrm expects 2015-12-09 12:57:13 +02:00
virt
virtio virtio_pci: fix use after free on release 2016-03-03 15:07:18 -08:00
vlynq
vme
w1
watchdog watchdog: mtk_wdt: Use MODE_KEY when stopping the watchdog 2015-11-23 09:00:09 +01:00
xen xen: bug fixes for 4.4-rc5 2015-12-18 12:24:52 -08:00
zorro
Kconfig
Makefile null_blk: register as a LightNVM device 2015-11-16 15:22:28 -07:00