linux/drivers
Brian Niebuhr d3f7141cbf spi: davinci: do not use temporary buffer if no transmit data provided
Remove usage of temporary buffer when no transmit data is provided.
Instead, use the transmit register itself as the source of data.

By choosing the transmit register itself as the source of data, this
patch helps remove unnecessary accesses to memory when no real data
is being transmitted.

Signed-off-by: Brian Niebuhr <bniebuhr@efjohnson.com>
Tested-By: Michael Williamson <michael.williamson@criticallink.com>
Signed-off-by: Sekhar Nori <nsekhar@ti.com>
2010-11-18 18:38:33 +05:30
..
accessibility
acpi ACPI: debugfs custom_method open to non-root 2010-11-13 09:52:16 -08:00
amba
ata SCSI host lock push-down 2010-11-16 13:33:23 -08:00
atm solos: Refuse to upgrade firmware with older FPGA. It doesn't work. 2010-11-08 12:17:05 -08:00
auxdisplay
base PM: Allow devices to be removed during late suspend and early resume 2010-11-11 01:50:53 +01:00
block BKL: remove extraneous #include <smp_lock.h> 2010-11-17 08:59:32 -08:00
bluetooth Bluetooth: Add MacBookAir3,1(2) support 2010-11-09 01:08:53 -02:00
cdrom cdrom: gdrom: ctrl_in/outX to __raw_read/writeX conversion. 2010-10-27 14:33:39 +09:00
char BKL: remove extraneous #include <smp_lock.h> 2010-11-17 08:59:32 -08:00
clocksource ARM: shmobile: remove sh_timer_config clk member 2010-10-31 10:40:39 -04:00
connector
cpufreq
cpuidle
crypto Merge git://git.kernel.org/pub/scm/linux/kernel/git/herbert/crypto-2.6 2010-11-13 09:55:56 -08:00
dca
dio
dma drivers/dma/Kconfig: add part number for Topcliff. 2010-10-29 14:14:02 -07:00
edac Merge branch 'linux_next' of git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/i7core 2010-10-26 10:13:48 -07:00
eisa
firewire SCSI host lock push-down 2010-11-16 13:33:23 -08:00
firmware dmi: log board, system, and BIOS information 2010-10-27 18:03:05 -07:00
gpio gpio: Add VIA VX855 GPIO driver 2010-10-29 00:29:51 +02:00
gpu BKL: remove extraneous #include <smp_lock.h> 2010-11-17 08:59:32 -08:00
hid BKL: remove extraneous #include <smp_lock.h> 2010-11-17 08:59:32 -08:00
hwmon hwmon: (w83795) Check for BEEP pin availability 2010-11-15 21:38:57 +01:00
i2c i2c: Sanity checks on adapter registration 2010-11-15 22:40:38 +01:00
ide ide: clean up timed out request handling 2010-10-26 10:17:30 -07:00
idle Merge branch 'idle-release' of git://git.kernel.org/pub/scm/linux/kernel/git/lenb/linux-idle-2.6 2010-10-26 17:28:07 -07:00
ieee802154
infiniband BKL: remove extraneous #include <smp_lock.h> 2010-11-17 08:59:32 -08:00
input BKL: remove extraneous #include <smp_lock.h> 2010-11-17 08:59:32 -08:00
isdn Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-2.6 2010-11-05 15:25:48 -07:00
leds drivers/leds/leds-gpio.c: properly initialize return value 2010-11-12 07:55:32 -08:00
lguest
macintosh drivers/macintosh/adb-iop.c: flags should be unsigned long 2010-11-12 07:55:30 -08:00
mca
md block: read i_size with i_size_read() 2010-11-10 14:40:53 +01:00
media BKL: remove extraneous #include <smp_lock.h> 2010-11-17 08:59:32 -08:00
memstick
message SCSI host lock push-down 2010-11-16 13:33:23 -08:00
mfd mfd: Fix a memory leak when unload mc13xxx-core module 2010-10-29 00:30:43 +02:00
misc i2c: Remove obsolete cleanup for clientdata 2010-11-15 22:40:38 +01:00
mmc mfd: Adding twl6030 mmc card detect support for MMC1 2010-10-29 00:29:59 +02:00
mtd Merge git://git.infradead.org/mtd-2.6 2010-10-30 08:31:35 -07:00
net BKL: remove extraneous #include <smp_lock.h> 2010-11-17 08:59:32 -08:00
nubus
of
oprofile Merge branches 'perf-fixes-for-linus' and 'x86-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip 2010-10-30 11:43:26 -07:00
parisc BKL: remove extraneous #include <smp_lock.h> 2010-11-17 08:59:32 -08:00
parport
pci BKL: remove extraneous #include <smp_lock.h> 2010-11-17 08:59:32 -08:00
pcmcia drivers/pcmcia/soc_common.c: Use printf extension %pV 2010-11-10 14:31:28 +01:00
platform Remove duplicate includes from many files 2010-10-27 18:03:18 -07:00
pnp BKL: remove extraneous #include <smp_lock.h> 2010-11-17 08:59:32 -08:00
power power: Revert "power_supply: Mark twl4030_charger as broken" 2010-10-29 00:30:44 +02:00
pps
ps3
rapidio rapidio: use resource_size() 2010-11-12 07:55:30 -08:00
regulator regulator: max8998 BUCK1/2 voltage change with use of GPIOs 2010-10-29 00:30:15 +02:00
rtc Merge branches 'sh/rtc' and 'common/clkfwk' into sh/urgent 2010-11-10 18:15:44 +09:00
s390 BKL: remove extraneous #include <smp_lock.h> 2010-11-17 08:59:32 -08:00
sbus Merge branch 'next-devicetree' of git://git.secretlab.ca/git/linux-2.6 2010-10-25 08:19:14 -07:00
scsi BKL: remove extraneous #include <smp_lock.h> 2010-11-17 08:59:32 -08:00
serial BKL: remove extraneous #include <smp_lock.h> 2010-11-17 08:59:32 -08:00
sfi
sh sh: intc: Fix up build failure introduced by radix tree changes. 2010-11-15 14:30:30 +09:00
sn
spi spi: davinci: do not use temporary buffer if no transmit data provided 2010-11-18 18:38:33 +05:30
ssb
staging BKL: remove extraneous #include <smp_lock.h> 2010-11-17 08:59:32 -08:00
tc
telephony
thermal
tty n_gsm: Fix length handling 2010-11-11 11:06:09 -08:00
uio
usb BKL: remove extraneous #include <smp_lock.h> 2010-11-17 08:59:32 -08:00
uwb UWB: Return UWB_RSV_ALLOC_NOT_FOUND rather than crashing on NULL dereference if kzalloc fails 2010-11-11 07:14:07 -08:00
vhost
video BKL: remove extraneous #include <smp_lock.h> 2010-11-17 08:59:32 -08:00
virtio
vlynq
w1 w1: don't allow arbitrary users to remove w1 devices 2010-10-27 18:03:17 -07:00
watchdog WATCHDOG: octeon-wdt: Use I/O clock rate for timing calculations. 2010-10-29 19:08:42 +01:00
xen BKL: remove extraneous #include <smp_lock.h> 2010-11-17 08:59:32 -08:00
zorro BKL: remove extraneous #include <smp_lock.h> 2010-11-17 08:59:32 -08:00
Kconfig
Makefile TTY: create drivers/tty and move the tty core files there 2010-11-05 08:10:33 -07:00