[Blackfin] arch: Let the pre-processor do the math to save a few cycles - no functional changes
Signed-off-by: Robin Getz <robin.getz@analog.com>
Signed-off-by: Bryan Wu <bryan.wu@analog.com>
diff --git a/arch/blackfin/mach-common/entry.S b/arch/blackfin/mach-common/entry.S
index 1b25b57..58f7ad6 100644
--- a/arch/blackfin/mach-common/entry.S
+++ b/arch/blackfin/mach-common/entry.S
@@ -633,9 +633,7 @@
[sp + PT_IPEND] = r0;
1:
- r1 = 0x37(Z);
- r2 = ~r1;
- r2.h = 0;
+ r2 = LO(~0x37) (Z);
r0 = r2 & r0;
cc = r0 == 0;
if !cc jump 4f; /* if not return to user mode, get out */