From 383f69656359191d2236ef5ec259984c844fde9a Mon Sep 17 00:00:00 2001 From: Dave Jiang Date: Tue, 9 Jun 2026 17:13:24 -0700 Subject: [PATCH] cxl: Add dummy function for cxl_memdev_attach_region for !CONFIG_CXL_REGION Add a dummy function that returns -EOPNOTSUPP for cxl_memdev_attach_region when CONFIG_CXL_REGION is not enabled. This allow sbuilding when cxl/core/region.o isn't built. Reported-by: kernel test robot Closes: https://lore.kernel.org/oe-kbuild-all/202606100401.GOjzpKHo-lkp@intel.com/ Fixes: 9b1e70e8f9ec ("cxl/region: Introduce devm_cxl_probe_mem()") Reviewed-by: Alison Schofield Reviewed-by: Dan Williams Link: https://patch.msgid.link/20260610001324.260268-1-dave.jiang@intel.com Signed-off-by: Dave Jiang --- drivers/cxl/cxlmem.h | 7 +++++++ 1 file changed, 7 insertions(+) diff --git a/drivers/cxl/cxlmem.h b/drivers/cxl/cxlmem.h index d3bdd00f94b3..ed419d0c59f2 100644 --- a/drivers/cxl/cxlmem.h +++ b/drivers/cxl/cxlmem.h @@ -115,7 +115,14 @@ struct cxl_attach_region { struct range hpa_range; }; +#ifdef CONFIG_CXL_REGION int cxl_memdev_attach_region(struct cxl_memdev *cxlmd); +#else +static inline int cxl_memdev_attach_region(struct cxl_memdev *cxlmd) +{ + return -EOPNOTSUPP; +} +#endif struct cxl_memdev *devm_cxl_add_classdev(struct cxl_dev_state *cxlds); struct cxl_memdev *__devm_cxl_add_memdev(struct cxl_dev_state *cxlds,