From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Sender: List-Post: List-Help: List-Unsubscribe: List-Subscribe: From: Cornelia Huck In-Reply-To: <1152549b-4a2d-a8e1-5b93-cedcc5d6413c@nvidia.com> References: <20230209121221.15118-1-mst@redhat.com> <20230209121221.15118-4-mst@redhat.com> <20230212044245-mutt-send-email-mst@kernel.org> <20230213031358-mutt-send-email-mst@kernel.org> <878rh1d9dz.fsf@redhat.com> <680c32ee-5dac-ab20-981a-bec134ca33c8@nvidia.com> <87wn4lbtdk.fsf@redhat.com> <1152549b-4a2d-a8e1-5b93-cedcc5d6413c@nvidia.com> Date: Mon, 13 Feb 2023 14:36:51 +0100 Message-ID: <87ttzpbsb0.fsf@redhat.com> MIME-Version: 1.0 Subject: [virtio] Re: [virtio-comment] Re: [PATCH v10 03/10] admin: introduce group administration commands Content-Type: text/plain To: Max Gurtovoy , "Michael S. Tsirkin" Cc: Parav Pandit , "virtio-comment@lists.oasis-open.org" , "virtio-dev@lists.oasis-open.org" , "jasowang@redhat.com" , "sgarzare@redhat.com" , "stefanha@redhat.com" , "nrupal.jani@intel.com" , "Piotr.Uminski@intel.com" , "hang.yuan@intel.com" , "virtio@lists.oasis-open.org" , Zhu Lingshan , "pasic@linux.ibm.com" , Shahaf Shuler List-ID: On Mon, Feb 13 2023, Max Gurtovoy wrote: > On 13/02/2023 15:13, Cornelia Huck wrote: >> On Mon, Feb 13 2023, Max Gurtovoy wrote: >> >>> On 13/02/2023 14:42, Cornelia Huck wrote: >>>> On Mon, Feb 13 2023, Max Gurtovoy wrote: >>>> >>>>> On 13/02/2023 10:16, Michael S. Tsirkin wrote: >>>>>> On Mon, Feb 13, 2023 at 02:54:47AM +0200, Max Gurtovoy wrote: >>>>>>>> For some system calls and library functions (e.g., >>>>>>>> getpriority(2)), -1 is a valid return on success. In such cases, >>>>>>>> a successful return can be distinguished from an error return by >>>>>>>> setting errno to zero before the call, and then, if the call >>>>>>>> returns a status that indicates that an error may have occurred, >>>>>>>> checking to see if errno has a nonzero value. >>>>>>>> >>>>>>>> >>>>>>>> >>>>>>>>> Description is already good enough to describe what they are. >>>>>>>>> Can we please drop Linux wording? >>>>>>>> >>>>>>>> But why should we? It's where 22 comes from so this way people are not >>>>>>>> wondering about the value, and it's somewhat helpful for Linux >>>>>>>> developers. >>>>>>>> >>>>>>> >>>>>>> I also think we should not mention Linux. I don't think it's mentioned >>>>>>> currently in the spec and no good reason to do so now. >>>>>> >>>>>> But we do: fuse, input at least both do. >>>>>> >>>>>>> Also value of 22 is not mandatory for this EINVAL status code. It can be >>>>>>> just 1 (the first number after the OK status). >>>>>> >>>>>> 22 makes it a tiny bit easier for kvm. So why not. >>>>> >>>>> Because people comment on that in the review :) and because a >>>>> specification should be OS independent. >>>>> 22 might be EINVAL in Linux but a success in MyOS is my lucky number is 22. >>>>> >>>>> not a big issue for me, but I prefer to have a cleaner spec than maybe >>>>> simplify something in a very specific OS. >>>> >>>> Well, my take is: >>>> - we have to pick *something* >>>> - using EINVAL == 22 is very convenient for one of the most common (the >>>> most common?) implementors >>>> - noting that we're trying to follow what Linux uses makes it clear what >>>> to pick for any new return codes >>>> >>> >>> Can we agree on 22 without mentioning Linux ? >> >> See my third point above: we want people to be aware why we chose 22, so >> any new values will match up as well. > > Why we need people to be aware ? people == people adding new error codes > > In NVMe spec for example there are many status codes (~30-50) and people > are not aware why the committee choose 0x02 for "Invalid Field in Command". > And frankly, I don't think they care. > > My point is that we need to make our lives, as spec developers and > maintainers, easier. And that's why I think we should keep the proposed wording :) I think it will make the life of Future Me easier. --------------------------------------------------------------------- To unsubscribe from this mail list, you must leave the OASIS TC that generates this mail. Follow this link to all your TCs in OASIS at: https://www.oasis-open.org/apps/org/workgroup/portal/my_workgroups.php