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cxl: Add dummy function for cxl_memdev_attach_region for !CONFIG_CXL_REGION

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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 <lkp@intel.com>
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 <alison.schofield@intel.com>
Reviewed-by: Dan Williams <djbw@kernel.org>
Link: https://patch.msgid.link/20260610001324.260268-1-dave.jiang@intel.com
Signed-off-by: Dave Jiang <dave.jiang@intel.com>
This commit is contained in:
Dave Jiang 2026-06-09 17:13:24 -07:00
parent d8dcb0b74b
commit 383f696563
1 changed files with 7 additions and 0 deletions
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7
drivers/cxl/cxlmem.h
View File

@ -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,