linux-kernel - [PATCH] cxl: Include range.h in cxl.h

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Message-Id: <20250701-cxl-fix-struct-range-error-v1-1-1f199bddc7c9@kernel.org>
Date: Tue, 01 Jul 2025 07:33:31 -0700
From: Nathan Chancellor <nathan@...nel.org>
To: Davidlohr Bueso <dave@...olabs.net>, 
 Jonathan Cameron <jonathan.cameron@...wei.com>, 
 Dave Jiang <dave.jiang@...el.com>, 
 Alison Schofield <alison.schofield@...el.com>, 
 Vishal Verma <vishal.l.verma@...el.com>, Ira Weiny <ira.weiny@...el.com>, 
 Dan Williams <dan.j.williams@...el.com>, 
 Andy Shevchenko <andriy.shevchenko@...ux.intel.com>
Cc: linux-cxl@...r.kernel.org, linux-kernel@...r.kernel.org, 
 Nathan Chancellor <nathan@...nel.org>
Subject: [PATCH] cxl: Include range.h in cxl.h

After commit aefeb286b960 ("libnvdimm: Don't use "proxy" headers"),
range.h may not be implicitly included, resulting in a build error:

  In file included from drivers/cxl/core/features.c:8:
  drivers/cxl/cxl.h:365:22: error: field 'hpa_range' has incomplete type
    365 |         struct range hpa_range;
        |                      ^~~~~~~~~
  drivers/cxl/cxl.h:562:22: error: field 'hpa_range' has incomplete type
    562 |         struct range hpa_range;
        |                      ^~~~~~~~~
  drivers/cxl/cxl.h:570:22: error: field 'hpa_range' has incomplete type
    570 |         struct range hpa_range;
        |                      ^~~~~~~~~
  drivers/cxl/cxl.h:803:22: error: array type has incomplete element type 'struct range'
    803 |         struct range dvsec_range[2];
        |                      ^~~~~~~~~~~

Include range.h in cxl.h explicitly to clear up the errors.

Fixes: aefeb286b960 ("libnvdimm: Don't use "proxy" headers")
Signed-off-by: Nathan Chancellor <nathan@...nel.org>
---
 drivers/cxl/cxl.h | 1 +
 1 file changed, 1 insertion(+)

diff --git a/drivers/cxl/cxl.h b/drivers/cxl/cxl.h
index 3f1695c96abc..b941ff94fe0a 100644
--- a/drivers/cxl/cxl.h
+++ b/drivers/cxl/cxl.h
@@ -11,6 +11,7 @@
 #include <linux/log2.h>
 #include <linux/node.h>
 #include <linux/io.h>
+#include <linux/range.h>
 
 extern const struct nvdimm_security_ops *cxl_security_ops;
 

---
base-commit: aefeb286b960a0629273d1dc809ea36754f42d98
change-id: 20250701-cxl-fix-struct-range-error-8475cbbf3358

Best regards,
--  
Nathan Chancellor <nathan@...nel.org>