drivers/serial · 829dd8112274d46c5ed82d46be506762e2c8fcd8 · jan.koester / Linux

atmel_serial: use cpu_relax() when busy-waiting

Haavard Skinnemoen authored 17 years ago

Replace two instances of barrier() with cpu_relax() since that's the right
thing to do when busy-waiting.  This does not actually change anything since
cpu_relax() is defined as barrier() on both ARM and AVR32.

Signed-off-by: Haavard Skinnemoen <hskinnemoen@atmel.com>
Acked-by: Andrew Victor <linux@maxim.org.za>
Tested-by: Marc Pignat <marc.pignat@hevs.ch>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

829dd811

History

829dd811 17 years ago

History

Name	Last commit	Last update
..
cpm_uart
jsm
21285.c
68328serial.c
68328serial.h
68360serial.c
8250.c
8250.h
8250_accent.c
8250_acorn.c
8250_au1x00.c
8250_boca.c
8250_early.c
8250_exar_st16c554.c
8250_fourport.c
8250_gsc.c
8250_hp300.c
8250_hub6.c
8250_mca.c
8250_pci.c
8250_pnp.c
Kconfig
Makefile
amba-pl010.c
amba-pl011.c
atmel_serial.c
bfin_5xx.c
clps711x.c
crisv10.c
crisv10.h
dz.c
dz.h
icom.c
icom.h
imx.c
ioc3_serial.c
ioc4_serial.c
ip22zilog.c
ip22zilog.h
m32r_sio.c
m32r_sio.h
m32r_sio_reg.h
mcf.c
mcfserial.c
mcfserial.h
mpc52xx_uart.c
mpsc.c
mux.c
netx-serial.c
of_serial.c
pmac_zilog.c
pmac_zilog.h
pnx8xxx_uart.c
pxa.c
s3c2410.c
sa1100.c
sb1250-duart.c
sc26xx.c
serial_core.c
serial_cs.c
serial_ks8695.c
serial_lh7a40x.c
serial_txx9.c
sh-sci.c
sh-sci.h
sn_console.c
suncore.c
suncore.h
sunhv.c
sunsab.c
sunsab.h
sunsu.c
sunzilog.c
sunzilog.h
uartlite.c
ucc_uart.c
v850e_uart.c
vr41xx_siu.c
zs.c
zs.h