[PATCH] cxl: Fix warning from emitting resoruce_size_t as long long int on 32bit systems

[Dave Jiang <dave.jiang@intel.com>]

Reported by kernel test bot from an ARM build:
drivers/cxl/core/region.c:3263:26: warning: format '%lld' expects argument of type 'long long int', but argument 3 has type 'resource_size_t' {aka 'unsigned int'} [-Wformat=]

On a 32bit system, resoruce_size_t is defined as 32bit long vs on a 64bit
system it is defined as 64bit long. Define the variables as u64 instead to
make the size same across all archs.

Reported-by: kernel test robot <lkp@intel.com>
Closes: https://lore.kernel.org/oe-kbuild-all/202503010252.mIDhZ5kY-lkp@intel.com/
Fixes: 0ec9849b6333 ("acpi/hmat / cxl: Add extended linear cache support for CXL")
Signed-off-by: Dave Jiang <dave.jiang@intel.com>
---
 drivers/cxl/core/region.c | 5 +++--
 1 file changed, 3 insertions(+), 2 deletions(-)

diff --git a/drivers/cxl/core/region.c b/drivers/cxl/core/region.c
index a83301f24fa2..958c15842b1e 100644
--- a/drivers/cxl/core/region.c
+++ b/drivers/cxl/core/region.c
@@ -3235,14 +3235,15 @@ static int cxl_extended_linear_cache_resize(struct cxl_region *cxlr,
 	struct cxl_root_decoder *cxlrd = to_cxl_root_decoder(cxlr->dev.parent);
 	struct cxl_region_params *p = &cxlr->params;
 	int nid = phys_to_target_node(res->start);
-	resource_size_t size, cache_size, start;
+	u64 size, cache_size, start;
 	int rc;
 
 	size = resource_size(res);
 	if (!size)
 		return -EINVAL;
 
-	rc = cxl_acpi_get_extended_linear_cache_size(res, nid, &cache_size);
+	rc = cxl_acpi_get_extended_linear_cache_size(res, nid,
+						     (resource_size_t *)&cache_size);
 	if (rc)
 		return rc;
 
-- 
2.48.1