On Tue, Oct 29, 2019 at 07:56:48AM -0700, James Bottomley wrote: > On Tue, 2019-10-29 at 16:22 +0200, Jarkko Sakkinen wrote: > > On Tue, Oct 29, 2019 at 09:43:42AM -0300, Jason Gunthorpe wrote: > > > On Tue, Oct 29, 2019 at 11:17:31AM +0200, Jarkko Sakkinen wrote: > > > > On Mon, Oct 28, 2019 at 02:05:07PM -0700, Jerry Snitselaar wrote: > > > > > On Mon Oct 28 19, Jarkko Sakkinen wrote: > > > > > > On Fri, Oct 25, 2019 at 12:31:03PM -0700, Jerry Snitselaar > > > > > > wrote: > > > > > > > + return sprintf(buf, "%s\n", chip->flags & > > > > > > > TPM_CHIP_FLAG_TPM2 > > > > > > > + ? "2.0" : "1.2"); > > > > > > > > > > > > This is not right. Should be either "1" or "2". > > > > > > > > > > > > /Jarkko > > > > > > > > > > Okay I will fix that up. Do we have a final decision on the > > > > > file name, > > > > > major_version versus version_major? > > > > > > > > Well, I don't see how major_version would make any sense. It is > > > > not as future proof as version_major. Still waiting for Jason's > > > > feedback for this. > > > > > > $ find /sys/ -name "*version*" > > > /sys/devices/pci0000:00/0000:00:17.0/ata1/host0/scsi_host/host0/ahc > > > i_host_version > > > /sys/devices/virtual/net/docker0/bridge/multicast_mld_version > > > /sys/devices/virtual/net/docker0/bridge/multicast_igmp_version > > > /sys/firmware/efi/esrt/entries/entry0/lowest_supported_fw_version > > > /sys/firmware/efi/esrt/entries/entry0/last_attempt_version > > > /sys/firmware/efi/esrt/entries/entry0/fw_version > > > /sys/module/acpi/parameters/acpica_version > > > > > > etc.. > > > > > > Not a single example of the backward version. > > > > > > Most likely it should be called 'tpm_version' > > > > The postfix gives tells the part of the version number that the file > > reports. If you really want to add the prefix, then the appropriate > > name would be tpm_version_major. > > > > I'd still go with just version_major as tpm_ prefix is somewhat > > redundant. > > You have to be careful with overly generic names in sysfs ... this is > what happened to us in SCSI: > > https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=42caa0edabd6a0a392ec36a5f0943924e4954311 > > That's not to say version_major is wrong ... plenty of sysfs files have > generic names like this, it's just that tpm_version_major might be more > future proof. Indeed, it is a bit a global namespace, so nothing wrong with adding tpm_ Jason
