On Thu, Oct 04, 2018 at 09:20:05AM -0600, Jeffrey Hugo wrote: > If a cache has an unknown type because neither the hardware nor the > firmware told us, an entry in the sysfs tree will be made, but the type > file will not be present. lscpu depends on the type file being present > for every entry, and will error out without printing system information > if lscpu cannot open the type file. > > Presenting information about a cache without indicating its type is not > useful, therefore if we hit a cache with an unknown type, stop populating > sysfs so that userspace has the maximum amount of useful information. > > This addresses the following lscpu error, which prevents any output. > lscpu: cannot open /sys/devices/system/cpu/cpu0/cache/index3/type: No such > file or directory > > Suggested-by: Sudeep Holla <sudeep.holla@xxxxxxx> > Signed-off-by: Jeffrey Hugo <jhugo@xxxxxxxxxxxxxx> > Reviewed-by: Jeremy Linton <jeremy.linton@xxxxxxx> > Reviewed-by: Sudeep Holla <sudeep.holla@xxxxxxx> > --- > drivers/base/cacheinfo.c | 2 ++ > 1 file changed, 2 insertions(+) Acked-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>
