On Thu, 2016-09-01 at 20:09 -0600, Jason Gunthorpe wrote: > On Fri, Sep 02, 2016 at 02:09:25AM +0200, Knut Omang wrote: > > > > The ib_uverbs_reg_mr_resp structure was not 64 bit end aligned > > as required by the protocol. This causes alignment issues > > if a device specific driver needs to transfer extra response > > arguments. > Can you explain in the commit message why this doesn't break anything? > How does compat work with existing libibverbs? It doesn't, and I realize I need to handle both old userspace -> new kernel new userspace -> old kernel I am working on a fix for it, which would have to be in ib_uverbs due to the if ( <user size> != <kernel size> ) fail semantics which effectively inhibits any changes at all :-/ Thanks, Knut > Jason -- To unsubscribe from this list: send the line "unsubscribe linux-rdma" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
