AuxXxilium/linux_dsm_epyc7002
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4dec2f119e
linux_dsm_epyc7002/drivers/tty/serial
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Peter Senna Tschudin 4dec2f119e imx-serial: RX DMA startup latency 
18a4208 introduced a change to reduce the RX DMA latency on the first reception
when the serial port was opened for reading. However it was claiming a hardirq
unsafe lock after a hardirq safe lock which is not allowed and causes lockdep
to complain verbosely.

This patch changes the code to always start RX DMA earlier, instead of
relying on the flags used to open the serial port removing the code that
was looking for the serial file flags.

Signed-off-by: Peter Senna Tschudin <peter.senna@collabora.com>
Tested-by: Sascha Hauer <s.hauer@pengutronix.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2017-05-18 16:26:40 +02:00
..
8250 drivers/serial: Add driver for Aspeed virtual UART 2017-05-18 16:19:16 +02:00
cpm_uart tty: serial: cpm_uart: make use of for_each_node_by_type() 2017-02-03 10:12:16 +01:00
jsm tty: serial: jsm_tty: constify uart_ops structures 2016-09-02 15:01:16 +02:00
21285.c
altera_jtaguart.c serial: altera_jtaguart: add earlycon support 2017-03-17 14:14:00 +09:00
altera_uart.c serial: altera_uart: add earlycon support 2017-03-31 16:56:10 +02:00
amba-pl010.c serial: pl010: Move uart_register_driver call to device probe 2017-05-18 16:19:16 +02:00
amba-pl011.c tty: pl011: use "qdf2400_e44" as the earlycon name for QDF2400 E44 2017-04-18 17:47:42 +02:00
amba-pl011.h
apbuart.c
apbuart.h
ar933x_uart.c tty: serial: constify uart_ops structures 2017-01-27 09:23:36 +01:00
arc_uart.c serial/arc: constify uart_ops structures 2016-09-01 21:05:41 +02:00
atmel_serial.c Merge 4.11-rc5 into tty-next 2017-04-03 14:18:16 +02:00
atmel_serial.h tty/serial: atmel: move atmel_serial header into driver directory 2017-03-14 10:59:04 +08:00
bcm63xx_uart.c serial/bcm63xx_uart: constify uart_ops structures 2016-09-02 15:01:16 +02:00
bfin_sport_uart.c tty: serial: constify dev_pm_ops structures 2017-01-19 14:20:23 +01:00
bfin_sport_uart.h
bfin_uart.c
clps711x.c serial: clps711x: Changing the compatibility string to match with the smallest supported chip 2016-07-06 17:38:16 +02:00
crisv10.c sched/headers: Prepare to move signal wakeup & sigpending methods from <linux/sched.h> into <linux/sched/signal.h> 2017-03-02 08:42:32 +01:00
crisv10.h
digicolor-usart.c
dz.c tty: serial: constify uart_ops structures 2017-01-27 09:23:36 +01:00
dz.h
earlycon-arm-semihost.c tty/serial: mark __init early_smh_setup() static 2016-09-02 15:03:35 +02:00
earlycon.c ACPI: parse SPCR and enable matching console 2016-09-28 17:46:46 +02:00
efm32-uart.c tty: serial: constify uart_ops structures 2017-01-27 09:23:36 +01:00
etraxfs-uart.c
fsl_lpuart.c tty: serial: fsl_lpuart: lock port on console write 2017-03-31 16:56:10 +02:00
icom.c tty: serial: constify uart_ops structures 2017-01-27 09:23:36 +01:00
icom.h
ifx6x60.c serial: ifx6x60: Free memory when probe fails 2016-11-10 14:50:46 +01:00
ifx6x60.h
imx.c imx-serial: RX DMA startup latency 2017-05-18 16:26:40 +02:00
ioc3_serial.c tty: serial: constify uart_ops structures 2017-01-27 09:23:36 +01:00
ioc4_serial.c scripts/spelling.txt: add "comsume(r)" pattern and fix typo instances 2017-02-27 18:43:47 -08:00
ip22zilog.c tty: serial: constify uart_ops structures 2017-01-27 09:23:36 +01:00
ip22zilog.h
Kconfig serial: altera_uart: add earlycon support 2017-03-31 16:56:10 +02:00
kgdb_nmi.c
kgdboc.c
lantiq.c tty: serial: constify uart_ops structures 2017-01-27 09:23:36 +01:00
lpc32xx_hs.c tty: serial: constify uart_ops structures 2017-01-27 09:23:36 +01:00
m32r_sio_reg.h
m32r_sio.c serial: m32r_sio: make it explicitly non-modular 2016-06-25 14:00:06 -07:00
Makefile serial: small Makefile reordering 2017-04-18 18:01:52 +02:00
max310x.c serial: max310x: Add support for newer silicon revisions 2017-01-12 11:51:24 +01:00
max3100.c tty: serial: constify uart_ops structures 2016-09-02 15:01:16 +02:00
mcf.c
men_z135_uart.c tty: serial: constify uart_ops structures 2016-09-02 15:01:16 +02:00
meson_uart.c tty: serial: meson: allow baud-rates higher than 115200 2017-01-19 14:38:57 +01:00
mpc52xx_uart.c
mps2-uart.c serial: mps2-uart: make driver explicitly non-modular 2016-06-25 14:01:57 -07:00
mpsc.c tty: serial: constify uart_ops structures 2017-01-27 09:23:36 +01:00
msm_serial.c tty: serial: msm: Fix module autoload 2017-01-12 11:51:25 +01:00
mux.c
mvebu-uart.c serial: mvebu-uart: free the IRQ in ->shutdown() 2016-06-25 14:00:06 -07:00
mxs-auart.c serial: mxs-auart: Fix baudrate calculation 2017-03-31 17:26:19 +02:00
netx-serial.c
omap-serial.c tty: serial: omap: add UPF_BOOT_AUTOCONF flag for DT init 2017-04-12 22:12:16 +02:00
pch_uart.c serial: pch_uart: add terminate entry for dmi_system_id tables 2016-10-27 16:01:31 +02:00
pic32_uart.c serial: pic32_uart: Fix 'request_irq' and 'free_irq' inconsistancy 2017-01-12 11:51:24 +01:00
pic32_uart.h
pmac_zilog.c tty: serial: constify uart_ops structures 2017-01-27 09:23:36 +01:00
pmac_zilog.h
pnx8xxx_uart.c tty: serial: constify uart_ops structures 2017-01-27 09:23:36 +01:00
pxa.c tty: serial: constify uart_ops structures 2017-01-27 09:23:36 +01:00
rp2.c
sa1100.c
samsung.c serial: samsung: Remove useless spinlock 2017-04-08 18:58:52 +02:00
samsung.h serial: samsung: Simplify DMA engine initialization code 2017-01-12 11:51:24 +01:00
sb1250-duart.c drivers: convert sbd_duart.map_guard from atomic_t to refcount_t 2017-03-14 11:01:40 +08:00
sc16is7xx.c sched/headers: Prepare for new header dependencies before moving code to <uapi/linux/sched/types.h> 2017-03-02 08:42:27 +01:00
sccnxp.c
serial_core.c serial: core: Re-use struct uart_port {name} field 2017-04-08 18:51:57 +02:00
serial_ks8695.c
serial_mctrl_gpio.c serial: mctrl_gpio: enable API usage only for initialized mctrl_gpios struct 2016-06-25 14:30:42 -07:00
serial_mctrl_gpio.h serial: mctrl_gpio: add modem control read routine 2016-06-25 14:30:42 -07:00
serial_txx9.c tty: serial: constify uart_ops structures 2017-01-27 09:23:36 +01:00
serial-tegra.c tty: serial: constify uart_ops structures 2017-01-27 09:23:36 +01:00
sh-sci.c serial: sh-sci: Move uart_register_driver call to device probe 2017-05-18 16:19:16 +02:00
sh-sci.h serial: sh-sci: consider DR (data ready) bit adequately 2017-02-03 10:14:10 +01:00
sirfsoc_uart.c tty: serial: constify uart_ops structures 2017-01-27 09:23:36 +01:00
sirfsoc_uart.h serial: sirf: make fifo functions static 2016-06-25 14:01:57 -07:00
sn_console.c tty: serial: constify uart_ops structures 2017-01-27 09:23:36 +01:00
sprd_serial.c serial: sprd: adjust TIMEOUT to a big value 2017-04-08 18:42:47 +02:00
st-asc.c TTY/Serial patches for 4.12-rc1 2017-05-08 18:49:23 -07:00
stm32-usart.c serial: stm32: mark symbols static where possible 2016-09-27 12:55:27 +02:00
stm32-usart.h serial: stm32: Fix comparisons with undefined register 2016-10-27 16:00:31 +02:00
suncore.c
sunhv.c sparc64: Send break twice from console to return to boot prom 2017-02-23 08:27:24 -08:00
sunsab.c
sunsab.h
sunsu.c serial: sunsu: Free memory when probe fails 2016-11-16 10:57:26 +01:00
sunzilog.c tty: serial: constify uart_ops structures 2017-01-27 09:23:36 +01:00
sunzilog.h
tilegx.c
timbuart.c tty: serial: constify uart_ops structures 2016-09-02 15:01:16 +02:00
timbuart.h
uartlite.c uartlite: Adding a kernel parameter for the number of uartlites 2017-03-17 14:14:30 +09:00
ucc_uart.c
vr41xx_siu.c tty: serial: constify uart_ops structures 2017-01-27 09:23:36 +01:00
vt8500_serial.c tty: serial: constify uart_ops structures 2017-01-27 09:23:36 +01:00
xilinx_uartps.c serial: xuartps: Enable clocks in the pm disable case also 2017-04-08 18:54:07 +02:00
zs.c tty: serial: constify uart_ops structures 2017-01-27 09:23:36 +01:00
zs.h