On Tue, 2 Dec 2025 16:32:24 -0700 Dave Jiang <[email protected]> wrote:
> On 11/19/25 8:19 PM, Smita Koralahalli wrote: > > From: Dan Williams <[email protected]> > > > > Replace IS_ENABLED(CONFIG_CXL_REGION) with IS_ENABLED(CONFIG_DEV_DAX_CXL) > > so that HMEM only defers Soft Reserved ranges when CXL DAX support is > > enabled. This makes the coordination between HMEM and the CXL stack more > > precise and prevents deferral in unrelated CXL configurations. > > > > Signed-off-by: Dan Williams <[email protected]> > > Signed-off-by: Smita Koralahalli <[email protected]> > > Reviewed-by: Dave Jiang <[email protected]>> --- Something odd happened with that tag from Dave so that might need manual application if you use b4 or similar. This seems sensible to me. Reviewed-by: Jonathan Cameron <[email protected]> > > drivers/dax/hmem/hmem.c | 2 +- > > 1 file changed, 1 insertion(+), 1 deletion(-) > > > > diff --git a/drivers/dax/hmem/hmem.c b/drivers/dax/hmem/hmem.c > > index 02e79c7adf75..c2c110b194e5 100644 > > --- a/drivers/dax/hmem/hmem.c > > +++ b/drivers/dax/hmem/hmem.c > > @@ -66,7 +66,7 @@ static int hmem_register_device(struct device *host, int > > target_nid, > > long id; > > int rc; > > > > - if (IS_ENABLED(CONFIG_CXL_REGION) && > > + if (IS_ENABLED(CONFIG_DEV_DAX_CXL) && > > region_intersects(res->start, resource_size(res), IORESOURCE_MEM, > > IORES_DESC_CXL) != REGION_DISJOINT) { > > dev_dbg(host, "deferring range to CXL: %pr\n", res); > >
