On Tue, Nov 19, 2013 at 08:21:45PM +0100, Oleg Nesterov wrote: > DR6_RESERVED and DR_CONTROL_RESERVED are used to clear the unwanted > bits in the "unsigned long" data, but "ulong &= ~int" also clears the > upper bits that are not specified in mask. > > This is actually fine, dr6[32:63] are reserved, but this is not clear > so it would be better to make them "unsigned long" to cleanup the code. > > However, depending on sizeof(long), DR6_RESERVED should be either > 0xFFFF0FF0 or 0xFFFFFFFF_FFFF0FF0, so this patch redefines them as > (~ 32_bit_mask UL) to avoid ifdef's. > > Reported-by: Linus Torvalds <torva...@linux-foundation.org> > Suggested-by: H. Peter Anvin <h...@zytor.com> > Signed-off-by: Oleg Nesterov <o...@redhat.com>
Ok, I'm queuing it just to make sure it's not forgotten. Thanks. -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
