linux-kernel - [PATCH][next] drm/xe: Avoid dozens of -Wflex-array-member-not-at-end warnings

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Message-ID: <aLGA3RVR2JIEnNhc@kspp>
Date: Fri, 29 Aug 2025 12:28:45 +0200
From: "Gustavo A. R. Silva" <gustavoars@...nel.org>
To: Lucas De Marchi <lucas.demarchi@...el.com>,
	Thomas Hellström <thomas.hellstrom@...ux.intel.com>,
	Rodrigo Vivi <rodrigo.vivi@...el.com>,
	David Airlie <airlied@...il.com>, Simona Vetter <simona@...ll.ch>
Cc: intel-xe@...ts.freedesktop.org, dri-devel@...ts.freedesktop.org,
	linux-kernel@...r.kernel.org,
	"Gustavo A. R. Silva" <gustavoars@...nel.org>,
	linux-hardening@...r.kernel.org
Subject: [PATCH][next] drm/xe: Avoid dozens of -Wflex-array-member-not-at-end
 warnings

-Wflex-array-member-not-at-end was introduced in GCC-14, and we are
getting ready to enable it, globally.

Move the conflicting declaration to the end of the corresponding
structure. Notice that `struct dev_pagemap` is a flexible structure,
this is a structure that contains a flexible-array member.

Fix 56 of the following type of warnings:
drivers/gpu/drm/xe/xe_vram_types.h:69:28: warning: structure containing a flexible array member is not at the end of another structure [-Wflex-array-member-not-at-end]

Signed-off-by: Gustavo A. R. Silva <gustavoars@...nel.org>
---
 drivers/gpu/drm/xe/xe_vram_types.h | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/gpu/drm/xe/xe_vram_types.h b/drivers/gpu/drm/xe/xe_vram_types.h
index 83772dcbf1af..183d358da741 100644
--- a/drivers/gpu/drm/xe/xe_vram_types.h
+++ b/drivers/gpu/drm/xe/xe_vram_types.h
@@ -66,8 +66,6 @@ struct xe_vram_region {
 #if IS_ENABLED(CONFIG_DRM_XE_PAGEMAP)
 	/** @migrate: Back pointer to migrate */
 	struct xe_migrate *migrate;
-	/** @pagemap: Used to remap device memory as ZONE_DEVICE */
-	struct dev_pagemap pagemap;
 	/**
 	 * @dpagemap: The struct drm_pagemap of the ZONE_DEVICE memory
 	 * pages of this tile.
@@ -79,6 +77,8 @@ struct xe_vram_region {
 	 * This is generated when remap device memory as ZONE_DEVICE
 	 */
 	resource_size_t hpa_base;
+	/** @pagemap: Used to remap device memory as ZONE_DEVICE */
+	struct dev_pagemap pagemap;
 #endif
 };
 
-- 
2.43.0