On Fri, 2025-07-11 at 15:33 -0700, Dave Jiang wrote: > 'cxl enable-port -m' uses cxl_port_get_dport_by_memdev() to find the > memdevs that are associated with a port in order to enable those > associated memdevs. When the kernel switch to delayed dport > initialization by enumerating the dports during memdev probe, the > dports are no longer valid until the memdev is probed. This means > that cxl_port_get_dport_by_memdev() will not find any memdevs under > the port. > > Add a new helper function cxl_port_is_memdev_hierarchy() that checks if a
Stale commit message - since the actual helper is called cxl_memdev_is_port_ancestor() ? > port is in the memdev hierarchy via the memdev->host_path where the sysfs > path contains all the devices in the hierarchy. This call is also backward > compatible with the old behavior. > > Signed-off-by: Dave Jiang <dave.ji...@intel.com> > --- > v2: > - Remove usages of cxl_port_get_dport_by_memdev() and add documentation to > explain > when cxl_port_get_dport_by_memdev() should be used. (Alison) > --- > Documentation/cxl/lib/libcxl.txt | 5 +++++ > cxl/filter.c | 2 +- > cxl/lib/libcxl.c | 31 +++++++++++++++++++++++++++++++ > cxl/lib/libcxl.sym | 5 +++++ > cxl/libcxl.h | 3 +++ > cxl/port.c | 4 ++-- > 6 files changed, 47 insertions(+), 3 deletions(-)
