I was just digging a bit around in linux/kernel.h and stumbled over the abs() makro. For me it looks as it would return wrong results on 64 bit platforms if the input value is greater than 2^32. Signed-off-by: Rolf Eike Beer --- include/linux/kernel.h | 2 +- 1 files changed, 1 insertions(+), 1 deletions(-) diff --git a/include/linux/kernel.h b/include/linux/kernel.h index d6320a3..1e6eb66 100644 --- a/include/linux/kernel.h +++ b/include/linux/kernel.h @@ -145,7 +145,7 @@ extern int _cond_resched(void); #define might_sleep_if(cond) do { if (cond) might_sleep(); } while (0) #define abs(x) ({ \ - int __x = (x); \ + long __x = (x); \ (__x < 0) ? -__x : __x; \ }) -- 1.6.0.2