diff options
| author | Russell King <rmk+kernel@arm.linux.org.uk> | 2011-01-16 21:02:17 +0300 |
|---|---|---|
| committer | Russell King <rmk+kernel@arm.linux.org.uk> | 2011-02-03 00:23:25 +0300 |
| commit | 6323f0ccedf756dfe5f46549cec69a2d6d97937b (patch) | |
| tree | 091e3408c12bbce33ef5d708b6131132b9660d4d /arch/arm/lib/clearbit.S | |
| parent | a16ede35a2659170c855c5d267776666c0630f1f (diff) | |
| download | linux-6323f0ccedf756dfe5f46549cec69a2d6d97937b.tar.xz | |
ARM: bitops: switch set/clear/change bitops to use ldrex/strex
Switch the set/clear/change bitops to use the word-based exclusive
operations, which are only present in a wider range of ARM architectures
than the byte-based exclusive operations.
Tested record:
- Nicolas Pitre: ext3,rw,le
- Sourav Poddar: nfs,le
- Will Deacon: ext3,rw,le
- Tony Lindgren: ext3+nfs,le
Reviewed-by: Nicolas Pitre <nicolas.pitre@linaro.org>
Tested-by: Sourav Poddar <sourav.poddar@ti.com>
Tested-by: Will Deacon <will.deacon@arm.com>
Tested-by: Tony Lindgren <tony@atomide.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
Diffstat (limited to 'arch/arm/lib/clearbit.S')
| -rw-r--r-- | arch/arm/lib/clearbit.S | 11 |
1 files changed, 2 insertions, 9 deletions
diff --git a/arch/arm/lib/clearbit.S b/arch/arm/lib/clearbit.S index 1a63e43a1df0..4c04c3b51eeb 100644 --- a/arch/arm/lib/clearbit.S +++ b/arch/arm/lib/clearbit.S @@ -12,13 +12,6 @@ #include "bitops.h" .text -/* - * Purpose : Function to clear a bit - * Prototype: int clear_bit(int bit, void *addr) - */ -ENTRY(_clear_bit_be) - eor r0, r0, #0x18 @ big endian byte ordering -ENTRY(_clear_bit_le) +ENTRY(_clear_bit) bitop bic -ENDPROC(_clear_bit_be) -ENDPROC(_clear_bit_le) +ENDPROC(_clear_bit) |