Re: [LinuxBIOS] [linux-usb-devel] [RFC][PATCH 0/2] x86_64 Early usb debug port support.

[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]

 



What do you mean by
+	for (reps = 0; reps >= 0; reps++) {
?

If you will not reps is negative.  Roughly it is a loop
that will timeout eventually if a usb debug cable is not present.

So since I didn't know how many loop iterations made sense I allowed
it to loop for 2^31 times or until reps goes negative.

This doesn't work however.  Signed overflow in C is undefined,
and GCC actually optimises accordingly (unless -fwrapv is used).


Segher

-
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to [email protected]
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/

[Index of Archives]     [Kernel Newbies]     [Netfilter]     [Bugtraq]     [Photo]     [Stuff]     [Gimp]     [Yosemite News]     [MIPS Linux]     [ARM Linux]     [Linux Security]     [Linux RAID]     [Video 4 Linux]     [Linux for the blind]     [Linux Resources]
  Powered by Linux