On Wed, Sep 14, 2016 at 10:46:22AM +0200, Bart Van Assche wrote: > Since REQ_OP_BITS == 3 and __REQ_NR_BITS == 30 it is not that hard > to pass an op_flags argument to bio_set_op_attrs() that is larger > than the number of bits reserved for the op_flags argument. Complain > if this happens. Additionally, ensure that negative arguments trigger > a complaint (1 << ... is signed while 1U << ... is unsigned; adding > 0U to an integer expression causes it to be promoted to an unsigned > type). And this does the proper check. Reviewed-by: Christoph Hellwig <hch@xxxxxx> -- To unsubscribe from this list: send the line "unsubscribe linux-block" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html