AuxXxilium/linux_dsm_epyc7002
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d8d721f4c0
linux_dsm_epyc7002/drivers/serial
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Tobias Klauser d8d721f4c0 altera_uart: Don't take spinlock in already protected functions 
Don't take the port spinlock in uart functions where the serial core
already takes care of locking/unlocking them.

The code would actually lock up on architectures where spinlocks are
implemented (not the case on nios2 where this driver is primarily used
for now, thus this bug didn't trigger).

Also protect calling altera_uart_rx_chars/altera_uart_tx_chars in the
interrupt handler by the port spinlock.

Thanks to Ian Abbott for pointing these issues out.

Cc: Ian Abbott <abbotti@mev.co.uk>
Cc: Thomas Chou <thomas@wytron.com.tw>
Signed-off-by: Tobias Klauser <tklauser@distanz.ch>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2010-06-04 13:37:17 -07:00
..
cpm_uart of: Remove duplicate fields from of_platform_driver 2010-05-22 00:10:40 -06:00
jsm include cleanup: Update gfp.h and slab.h includes to prepare for breaking implicit slab.h inclusion from percpu.h 2010-03-30 22:02:32 +09:00
8250_accent.c
8250_acorn.c
8250_boca.c
8250_early.c
8250_exar_st16c554.c
8250_fourport.c
8250_gsc.c include cleanup: Update gfp.h and slab.h includes to prepare for breaking implicit slab.h inclusion from percpu.h 2010-03-30 22:02:32 +09:00
8250_hp300.c include cleanup: Update gfp.h and slab.h includes to prepare for breaking implicit slab.h inclusion from percpu.h 2010-03-30 22:02:32 +09:00
8250_hub6.c
8250_mca.c
8250_pci.c serial: add support for Korenix JetCard 2010-03-02 14:43:10 -08:00
8250_pnp.c serial: 8250_pnp - add Fujitsu Wacom device 2010-04-30 09:20:34 -07:00
8250.c kgdb,8250,pl011: Return immediately from console poll 2010-05-20 21:04:22 -05:00
8250.h serial: 8250: add IRQ trigger support 2009-09-19 13:13:19 -07:00
21285.c ARM: 5874/1: serial21285: fix disable_irq-from-interrupt-handler deadlock 2010-01-11 15:39:21 +00:00
68328serial.c m68knommu: fix broken use of BUAD_TABLE_SIZE in 68328serial driver 2010-05-25 08:07:02 -07:00
68328serial.h
68360serial.c
altera_jtaguart.c serial: Add driver for the Altera JTAG UART 2010-05-21 09:34:30 -07:00
altera_uart.c altera_uart: Don't take spinlock in already protected functions 2010-06-04 13:37:17 -07:00
amba-pl010.c include cleanup: Update gfp.h and slab.h includes to prepare for breaking implicit slab.h inclusion from percpu.h 2010-03-30 22:02:32 +09:00
amba-pl011.c kgdb,8250,pl011: Return immediately from console poll 2010-05-20 21:04:22 -05:00
apbuart.c of: Remove duplicate fields from of_platform_driver 2010-05-22 00:10:40 -06:00
apbuart.h sparc: Support for GRLIB APBUART serial port 2009-11-04 08:44:54 -08:00
atmel_serial.c ARM: 6092/1: atmel_serial: support for RS485 communications 2010-05-04 16:59:11 +01:00
bcm63xx_uart.c serial: bcm63xx_uart: allow more than one uart to be registered. 2010-03-02 14:43:19 -08:00
bfin_5xx.c serial: bfin_5xx: fix typo in IER check 2010-06-04 13:37:17 -07:00
bfin_sport_uart.c serial: bfin_sport_uart: Use resource size to fix off-by-one error 2010-05-21 09:34:30 -07:00
bfin_sport_uart.h serial: bfin_sport_uart: add support for CTS/RTS via GPIOs 2010-05-21 09:34:27 -07:00
clps711x.c serial: kill off uart_info 2009-09-19 13:13:28 -07:00
crisv10.c CRIS: fix defconfig build failure 2009-08-31 18:38:16 +02:00
crisv10.h
dz.c serial: kill off uart_info 2009-09-19 13:13:28 -07:00
dz.h
icom.c tty: Fix up char drivers request_room usage 2010-03-02 14:43:22 -08:00
icom.h
imx.c serial: imx.c: fix CTS trigger level lower to avoid lost chars 2010-05-13 12:10:56 -07:00
ioc3_serial.c include cleanup: Update gfp.h and slab.h includes to prepare for breaking implicit slab.h inclusion from percpu.h 2010-03-30 22:02:32 +09:00
ioc4_serial.c include cleanup: Update gfp.h and slab.h includes to prepare for breaking implicit slab.h inclusion from percpu.h 2010-03-30 22:02:32 +09:00
ip22zilog.c serial: move delta_msr_wait into the tty_port 2009-09-19 13:13:31 -07:00
ip22zilog.h
Kconfig serial: Add driver for the Altera UART 2010-05-21 09:34:30 -07:00
kgdboc.c kgdboc: Add ekgdboc for early use of the kernel debugger 2010-05-20 21:04:30 -05:00
m32r_sio_reg.h
m32r_sio.c serial: kill off uart_info 2009-09-19 13:13:28 -07:00
m32r_sio.h
Makefile serial: Add driver for the Altera UART 2010-05-21 09:34:30 -07:00
max3100.c include cleanup: Update gfp.h and slab.h includes to prepare for breaking implicit slab.h inclusion from percpu.h 2010-03-30 22:02:32 +09:00
mcf.c m68knommu: allow 4 coldfire serial ports 2010-04-21 14:56:00 +10:00
mpc52xx_uart.c Merge remote branch 'origin' into secretlab/next-spi 2010-05-25 00:38:26 -06:00
mpsc.c powerpc/mpsc: Set the port device in the mpsc serial driver 2010-04-07 14:12:36 +10:00
msm_serial.c msm_serial: fix serial on trout 2010-06-04 13:37:16 -07:00
msm_serial.h msm_serial: fix serial on trout 2010-06-04 13:37:16 -07:00
mux.c include cleanup: Update gfp.h and slab.h includes to prepare for breaking implicit slab.h inclusion from percpu.h 2010-03-30 22:02:32 +09:00
netx-serial.c serial: kill off uart_info 2009-09-19 13:13:28 -07:00
nwpserial.c of: Always use 'struct device.of_node' to get device node pointer. 2010-05-18 16:10:44 -06:00
of_serial.c of: Remove duplicate fields from of_platform_driver 2010-05-22 00:10:40 -06:00
pmac_zilog.c powerpc/macio: Fix probing of macio devices by using the right of match table 2010-06-02 17:50:38 +10:00
pmac_zilog.h pmac-zilog: add platform driver 2010-02-27 18:31:02 +01:00
pnx8xxx_uart.c serial: move delta_msr_wait into the tty_port 2009-09-19 13:13:31 -07:00
pxa.c include cleanup: Update gfp.h and slab.h includes to prepare for breaking implicit slab.h inclusion from percpu.h 2010-03-30 22:02:32 +09:00
s3c24a0.c ARM: S3C: Update Simtec copyright statements from , to - [2] 2009-12-01 01:33:51 +00:00
s3c2400.c ARM: S3C24XX: serial: Fix section mismatch warnings 2009-07-30 23:56:41 +01:00
s3c2410.c ARM: S3C: Update Simtec copyright statements from , to - [2] 2009-12-01 01:33:51 +00:00
s3c2412.c ARM: S3C2412: SoC has the fractional baud rate register 2010-02-03 01:55:01 +00:00
s3c2440.c ARM: S3C: Update Simtec copyright statements from , to - [2] 2009-12-01 01:33:51 +00:00
s3c6400.c ARM: S3C64XX: serial: Fix section mismatch warning 2009-07-30 23:56:41 +01:00
s5pv210.c ARM: S5PV210: serial: Fix section mismatch warning 2010-05-28 19:40:05 +09:00
sa1100.c ARM: Fix SA1100 Neponset serial section mismatch 2009-09-28 18:06:16 +01:00
samsung.c Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/trivial 2010-03-12 16:04:50 -08:00
samsung.h ARM: SAMSUNG: serial: Modify console initialization. 2010-01-19 17:50:47 +09:00
sb1250-duart.c serial: move delta_msr_wait into the tty_port 2009-09-19 13:13:31 -07:00
sc26xx.c serial: kill off uart_info 2009-09-19 13:13:28 -07:00
serial_core.c serial: Fix crash if the minimum rate of the device is > 9600 baud 2010-01-20 15:03:29 -08:00
serial_cs.c serial_cs: add and sort IDs for serial and modem cards 2010-06-04 13:37:16 -07:00
serial_ks8695.c ARM: 6030/1: KS8695: enable console 2010-04-23 10:01:56 +01:00
serial_lh7a40x.c serial: move delta_msr_wait into the tty_port 2009-09-19 13:13:31 -07:00
serial_txx9.c serial_txx9: use container_of() instead of direct cast 2009-10-01 16:11:15 -07:00
sh-sci.c sh: fix Oops in the serial SCI driver 2010-05-22 17:06:34 +09:00
sh-sci.h SH: fix SCIFA SCASCR register bit definitions 2010-03-23 13:33:45 +09:00
sn_console.c serial: kill off uart_info 2009-09-19 13:13:28 -07:00
suncore.c serial: suncore: Fix RSC/LOM handling in sunserial_console_termios(). 2009-11-24 14:09:56 -08:00
suncore.h serial: suncore: Fix RSC/LOM handling in sunserial_console_termios(). 2009-11-24 14:09:56 -08:00
sunhv.c of: Remove duplicate fields from of_platform_driver 2010-05-22 00:10:40 -06:00
sunsab.c of: Remove duplicate fields from of_platform_driver 2010-05-22 00:10:40 -06:00
sunsab.h
sunsu.c of: Remove duplicate fields from of_platform_driver 2010-05-22 00:10:40 -06:00
sunzilog.c Merge remote branch 'origin' into secretlab/next-devicetree 2010-05-22 00:36:56 -06:00
sunzilog.h
timbuart.c serial: timbuart: make sure last byte is sent when port is closed 2010-05-21 09:34:29 -07:00
timbuart.h serial: Added Timberdale UART driver 2009-06-11 08:51:06 -07:00
uartlite.c Merge remote branch 'origin' into secretlab/next-devicetree 2010-05-22 00:36:56 -06:00
ucc_uart.c of: Remove duplicate fields from of_platform_driver 2010-05-22 00:10:40 -06:00
vr41xx_siu.c serial: move delta_msr_wait into the tty_port 2009-09-19 13:13:31 -07:00
zs.c serial: move delta_msr_wait into the tty_port 2009-09-19 13:13:31 -07:00
zs.h