From mboxrd@z Thu Jan 1 00:00:00 1970 From: Jason Gunthorpe Subject: Re: [PATCH v5 1/1] ibacm: Add support for pathrecord query through netlink Date: Thu, 11 Jun 2015 13:54:22 -0600 Message-ID: <20150611195422.GC24457@obsidianresearch.com> References: <1434042265-5066-1-git-send-email-kaike.wan@intel.com> <20150611175940.GD20142@obsidianresearch.com> <3F128C9216C9B84BB6ED23EF16290AFB0CABD2BD@CRSMSX101.amr.corp.intel.com> <20150611184641.GB20779@obsidianresearch.com> <3F128C9216C9B84BB6ED23EF16290AFB0CABD316@CRSMSX101.amr.corp.intel.com> <20150611192719.GA24457@obsidianresearch.com> <3F128C9216C9B84BB6ED23EF16290AFB0CABD362@CRSMSX101.amr.corp.intel.com> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Return-path: Content-Disposition: inline In-Reply-To: <3F128C9216C9B84BB6ED23EF16290AFB0CABD362-8k97q/ur5Z2krb+BlOpmy7fspsVTdybXVpNB7YpNyf8@public.gmane.org> Sender: linux-rdma-owner-u79uwXL29TY76Z2rM5mHXA@public.gmane.org To: "Wan, Kaike" Cc: "linux-rdma-u79uwXL29TY76Z2rM5mHXA@public.gmane.org" , "Fleck, John" , "Weiny, Ira" List-Id: linux-rdma@vger.kernel.org On Thu, Jun 11, 2015 at 07:35:37PM +0000, Wan, Kaike wrote: > #define RDMA_NLA_F_MANDATORY (1 << 13) > #define RDMA_NLA_TYPE_MASK ~(NLA_F_NESTED | NLA_F_NET_BYTEORDER | RDMA_NLA_F_MANDATORY) > > In this case, kernel will use (RDMA_NLA_F_MANDATORY | type) to > inform user space that this attribute is mandatory. That general idea makes sense to me. Then just test RDMA_NLA_F_MANDATORY in the case default: in acm. Fail if set, ignore if unset. Jason -- To unsubscribe from this list: send the line "unsubscribe linux-rdma" in the body of a message to majordomo-u79uwXL29TY76Z2rM5mHXA@public.gmane.org More majordomo info at http://vger.kernel.org/majordomo-info.html