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8d5b305484
linux/drivers
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Lukas Wunner 8d5b305484 serial: 8250: Optimize irq enable after console write 
Commit 7f9803072f ("serial: 8250: Support console on software emulated
rs485 ports") amended serial8250_console_write() with rs485 support, but
positioned the invocation of ->rs485_stop_tx() after re-enablement of
interrupts.  The irq handler and ->console_write() are serialized with
the port spinlock, so no problem there, but due to the rs485 delay, the
irq handler may unnecessarily spin for a while.  Avoid that by moving
->rs485_stop_tx() before re-enablement of interrupts, which also mirrors
the order at the beginning of serial8250_console_write().

Signed-off-by: Lukas Wunner <lukas@wunner.de>
Link: https://lore.kernel.org/r/019839cb1f61b01210b6ff9ac9f9079ca77f8411.1585319447.git.lukas@wunner.de
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2020-03-27 15:45:54 +01:00
..
accessibility console: Don't perform test for CON_BRL flag 2020-02-11 10:43:36 +01:00
acpi x86/mm: split vmalloc_sync_all() 2020-03-21 18:56:06 -07:00
amba
android binderfs: use refcount for binder control devices too 2020-03-11 19:33:52 +01:00
ata libata-5.6-2020-02-05 2020-02-06 06:11:50 +00:00
atm atm: nicstar: fix if-statement empty body warning 2020-02-29 21:28:30 -08:00
auxdisplay auxdisplay: charlcd: replace zero-length array with flexible-array member 2020-03-06 22:18:07 +01:00
base driver code: clarify and fix platform device DMA mask allocation 2020-03-11 09:30:27 -07:00
bcma Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net-next 2020-01-28 16:02:33 -08:00
block virtio: fixes 2020-03-09 16:02:32 -07:00
bluetooth Bluetooth: btrtl: Use kvmalloc for FW allocations 2020-01-24 19:57:53 +01:00
bus Few fixes for omaps for v5.6-rc cycle 2020-02-29 11:47:44 -08:00
cdrom scsi: compat_ioctl: cdrom: Replace .ioctl with .compat_ioctl in four appropriate places 2020-02-24 15:06:07 -05:00
char ipmi_si: Avoid spurious errors for optional IRQs 2020-03-11 21:15:19 -05:00
clk clk: qcom: dispcc: Remove support of disp_cc_mdss_rscc_ahb_clk 2020-02-12 15:03:08 -08:00
clocksource ARM: SoC: late updates 2020-02-08 14:17:27 -08:00
connector
counter
cpufreq cpufreq: Fix policy initialization for internal governor drivers 2020-02-27 08:57:48 +01:00
cpuidle ARM: SoC-related driver updates 2020-02-08 14:04:19 -08:00
crypto Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net-next 2020-01-28 16:02:33 -08:00
dax dax: Get rid of fs_dax_get_by_host() helper 2020-01-16 09:52:27 -08:00
dca
devfreq Revert "PM / devfreq: Modify the device name as devfreq(X) for sysfs" 2020-02-24 11:14:29 +09:00
dio
dma dmaengine: imx-sdma: Fix the event id check to include RX event for UART6 2020-02-25 14:15:26 +05:30
dma-buf dma-buf: free dmabuf->name in dma_buf_release() 2020-02-27 18:01:58 +05:30
edac EDAC/synopsys: Do not print an error with back-to-back snprintf() calls 2020-02-27 16:44:25 +01:00
eisa
extcon
firewire
firmware Two EFI fixes: 2020-03-15 12:42:03 -07:00
fpga fpga: xilinx-pr-decoupler: Remove clk_get error message for probe defer 2020-01-10 12:51:56 -08:00
fsi fsi: aspeed: add unspecified HAS_IOMEM dependency 2020-02-10 13:45:49 -08:00
gnss
gpio gpio: sifive: fix static checker warning 2020-02-10 13:54:17 +01:00
gpu drm/i915 fixes for v5.6-rc7: 2020-03-20 12:52:35 +10:00
greybus
hid Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/hid/hid 2020-03-17 09:38:03 -07:00
hsi
hv - Most of the commits here are work to enable host-initiated hibernation 2020-02-03 14:42:03 +00:00
hwmon hwmon: (adt7462) Fix an error return in ADT7462_REG_VOLT() 2020-03-03 12:42:55 -08:00
hwspinlock hwspinlock: sirf: Use devm_hwspin_lock_register() to register hwlock controller 2020-01-21 16:16:36 -08:00
hwtracing intel_th: pci: Add Elkhart Lake CPU support 2020-03-18 11:32:56 +01:00
i2c i2c: acpi: put device when verifying client fails 2020-03-13 15:15:30 +01:00
i3c i3c: master: dw: reattach device on first available location of address table 2020-01-13 10:00:05 +01:00
ide scsi: compat_ioctl: cdrom: Replace .ioctl with .compat_ioctl in four appropriate places 2020-02-24 15:06:07 -05:00
idle intel_idle: Introduce 'states_off' module parameter 2020-02-03 11:57:18 +01:00
iio First set of IIO fixes in the 5.6 cycle. 2020-03-18 11:20:42 +01:00
infiniband Second RDMA 5.6 pull request 2020-03-07 19:52:55 -06:00
input Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input 2020-02-15 16:49:25 -08:00
interconnect interconnect: Handle memory allocation errors 2020-03-03 08:02:57 +01:00
iommu iommu/vt-d: Populate debugfs if IOMMUs are detected 2020-03-14 20:02:43 +01:00
ipack
irqchip irqchip fixes for 5.6, take #2 2020-03-15 10:53:11 +01:00
isdn proc: convert everything to "struct proc_ops" 2020-02-04 03:05:26 +00:00
leds leds: lm3532: add pointer to documentation and fix typo 2020-01-22 21:08:24 +01:00
lightnvm
macintosh macintosh: windfarm: fix MODINFO regression 2020-03-10 12:30:59 +01:00
mailbox mailbox: armada-37xx-rwtm: convert to devm_platform_ioremap_resource 2020-01-08 10:41:52 +01:00
mcb
md block-5.6-2020-03-07 2020-03-07 14:14:38 -06:00
media media: mc-entity.c: use & to check pad flags, not == 2020-02-24 15:10:04 +01:00
memory mvebu drivers for 5.6 (part 1) 2020-01-16 10:45:44 -08:00
memstick
message Merge ra.kernel.org:/pub/scm/linux/kernel/git/netdev/net 2020-01-19 22:10:04 +01:00
mfd chrome platform changes for 5.6 2020-02-04 07:17:41 +00:00
misc mmc: rtsx_pci: Fix support for speed-modes that relies on tuning 2020-03-18 11:55:02 +01:00
mmc mmc: rtsx_pci: Fix support for speed-modes that relies on tuning 2020-03-18 11:55:02 +01:00
mtd treewide: remove redundant IS_ERR() before error code check 2020-02-04 03:05:27 +00:00
mux
net net: systemport: fix index check to avoid an array out of bounds access 2020-03-12 15:50:18 -07:00
nfc nfc: pn544: Fix occasional HW initialization failure 2020-02-19 11:09:27 -08:00
ntb
nubus
nvdimm mm: Cleanup __put_devmap_managed_page() vs ->page_free() 2020-01-31 10:30:37 -08:00
nvme nvmet-tcp: set MSG_MORE only if we actually have more to send 2020-03-21 04:37:53 +09:00
nvmem Merge branch 'i2c/for-5.6' of git://git.kernel.org/pub/scm/linux/kernel/git/wsa/linux 2020-02-07 12:54:13 -08:00
of drivers/of/of_mdio.c:fix of_mdiobus_register() 2020-03-03 19:01:51 -08:00
opp ioremap changes for 5.6 2020-01-27 13:03:00 -08:00
oprofile tracing: Make struct ring_buffer less ambiguous 2020-01-13 13:19:38 -05:00
parisc proc: convert everything to "struct proc_ops" 2020-02-04 03:05:26 +00:00
parport
pci PCI: brcmstb: Fix build on 32bit ARM platforms with older compilers 2020-02-27 08:06:20 -06:00
pcmcia
perf drivers/perf: arm_pmu_acpi: Fix incorrect checking of gicc pointer 2020-03-02 12:07:35 +00:00
phy phy: for 5.6-rc 2020-03-04 13:28:52 +01:00
pinctrl pinctrl: qcom: Assign irq_eoi conditionally 2020-03-09 16:31:34 +01:00
platform platform/chrome: wilco_ec: Include asm/unaligned instead of linux/ path 2020-02-11 09:10:36 +01:00
pnp proc: convert everything to "struct proc_ops" 2020-02-04 03:05:26 +00:00
power ARM: SoC platform updates 2020-02-08 13:55:25 -08:00
powercap Merge back power capping changes for v5.6. 2020-01-13 10:32:19 +01:00
pps
ps3
ptp Merge ra.kernel.org:/pub/scm/linux/kernel/git/netdev/net 2020-01-19 22:10:04 +01:00
pwm pwm: Remove set but not set variable 'pwm' 2020-01-20 15:40:49 +01:00
rapidio
ras
regulator regulator: Fixes for v5.6 2020-03-06 14:48:30 -06:00
remoteproc remoteproc: qcom: q6v5-mss: Improve readability of reset_assert 2020-01-24 09:34:07 -08:00
reset reset: intel: add unspecified HAS_IOMEM dependency 2020-02-10 11:11:55 +01:00
rpmsg rpmsg: add rpmsg support for mt8183 SCP. 2020-01-20 10:29:56 -08:00
rtc rtc: max8907: add missing select REGMAP_IRQ 2020-03-19 09:55:25 -07:00
s390 block-5.6-2020-03-13 2020-03-13 12:45:23 -07:00
sbus
scsi scsi: ipr: Fix softlockup when rescanning devices in petitboot 2020-03-10 22:34:24 -04:00
sfi
sh
siox siox: Use the correct style for SPDX License Identifier 2020-01-14 21:46:53 +01:00
slimbus slimbus: ngd: add v2.1.0 compatible 2020-03-12 16:51:15 +01:00
soc i.MX fixes for 5.6: 2020-02-24 09:57:05 -08:00
soundwire soundwire: cadence: fix kernel-doc parameter descriptions 2020-01-16 17:34:38 +05:30
spi spi: Fixes for v5.6 2020-03-06 14:50:16 -06:00
spmi spmi: pmic-arb: Set lockdep class for hierarchical irq domains 2020-02-10 13:16:04 +01:00
ssb
staging Staging/IIO fixes for 5.6-rc7 2020-03-20 09:20:38 -07:00
target scsi: Revert "target: iscsi: Wait for all commands to finish before freeing a session" 2020-02-14 17:13:54 -05:00
tc The main MIPS changes for 5.6: 2020-01-31 11:28:31 -08:00
tee arm64: dts: agilex: fix gmac compatible 2020-03-03 16:40:56 -08:00
thermal - Fix a SEVERE docs build failure for cpu idle cooling device (Randy Dunlap) 2020-01-31 14:39:21 -08:00
thunderbolt thunderbolt: Fix error code in tb_port_is_width_supported() 2020-03-04 12:34:17 +03:00
tty serial: 8250: Optimize irq enable after console write 2020-03-27 15:45:54 +01:00
uio uio: uio_pdrv_genirq: Do not log an error when deferring probe routine. 2020-01-14 15:27:51 +01:00
usb USB-serial fixes for 5.6-rc7 2020-03-18 10:42:57 +01:00
vfio VFIO updates for v5.6-rc1 2020-02-03 22:22:05 +00:00
vhost vhost: Check docket sk_family instead of call getname 2020-02-22 21:41:42 -08:00
video ARM: SoC fixes 2020-03-08 17:36:22 -07:00
virt
virtio virtio_balloon: Adjust label in virtballoon_probe 2020-03-08 05:35:24 -04:00
visorbus visorbus: fix uninitialized variable access 2020-01-14 15:30:35 +01:00
vlynq
vme Char/Misc driver changes for 5.6-rc1 2020-01-29 10:35:54 -08:00
w1 Char/Misc driver changes for 5.6-rc1 2020-01-29 10:35:54 -08:00
watchdog watchdog: iTCO_wdt: Make ICH_RES_IO_SMI optional 2020-03-10 10:20:37 +01:00
xen xen/xenbus: fix locking 2020-03-05 09:42:23 -06:00
zorro Kbuild updates for v5.6 (2nd) 2020-02-09 16:05:50 -08:00
Kconfig
Makefile