Re: asm/unistd.h

[David S. Miller]

Sardaņ[e-mail], Eliel writes:
 > I'm taking a look at the linux code and I don't understand how do you
 > programm...mmm (?) may be i'm a stupid why in include/asm/unistd.h in some
 > macros you use this:

Two reasons:

1) Empty statements give a warning from the compiler so
   this is why you see "#define FOO do { } while(0)"
2) It gives you a basic block in which to declare local
   variables.

Later,
David S. Miller
[e-mail]