Messages in this thread | | | Date | Tue, 10 Dec 2019 15:47:37 +0100 | From | Greg KH <> | Subject | Re: [PATCH 3/3] arm64 cpuinfo: implement sysfs nodes for arm64 |
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On Tue, Dec 10, 2019 at 02:33:07PM +0100, Thomas Renninger wrote: > On Monday, December 9, 2019 6:38:05 PM CET Will Deacon wrote: > > On Mon, Dec 09, 2019 at 12:28:44PM +0100, Thomas Renninger wrote: > > > On Monday, December 9, 2019 11:31:11 AM CET Will Deacon wrote: > > > > On Fri, Dec 06, 2019 at 05:24:21PM +0100, Thomas Renninger wrote: > > > > > From: Felix Schnizlein <fschnizlein@suse.de> > > > > > > > > > > Export all information from /proc/cpuinfo to sysfs: > > > > > implementer, architecture, variant, part, revision, > > > > > bogomips and flags are exported. > > > > > > > > > > Example: > > > > > /sys/devices/system/cpu/cpu1/info/:[0]# head * > > > > > > ... > > > > > > > > ==> flags <== > > > > > fp asimd evtstrm aes pmull sha1 sha2 crc32 cpuid asimdrdm > > > > > > ... > > > > > > > I don't understand why we need this on arm64 > > Again: proc is moving to sys.
No. New stuff is to be added to /sys/, don't add new things to /proc unless it deals with processes.
There is no mass-migration of existing /proc files to sysfs for no good reason.
> You probably export feature flags in /proc/cpuinfo for a good reason. > So where in sysfs should this show up?
Why does it have to live in sysfs if it is already in /proc and parsed properly by tools?
thanks,
greg k-h
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