linux-next: build failure after merge of the drm-xe tree

[Stephen Rothwell <sfr@canb.auug.org.au>]

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Hi all,

After merging the drm-xe tree, today's linux-next build (x86_64
allmodconfig) failed like this:

In file included from include/linux/kernel.h:22,
                 from include/linux/cpumask.h:11,
                 from arch/x86/include/asm/paravirt.h:21,
                 from arch/x86/include/asm/irqflags.h:80,
                 from include/linux/irqflags.h:18,
                 from include/linux/spinlock.h:59,
                 from include/linux/mmzone.h:8,
                 from include/linux/gfp.h:7,
                 from include/linux/mm.h:7,
                 from include/linux/pagemap.h:8,
                 from include/drm/ttm/ttm_tt.h:30,
                 from drivers/gpu/drm/xe/xe_bo.h:9,
                 from drivers/gpu/drm/xe/xe_svm.c:6:
drivers/gpu/drm/xe/xe_svm.c: In function 'page_to_vr':
drivers/gpu/drm/xe/xe_svm.c:344:33: error: 'struct page' has no member named 'pgmap'
  344 |         return container_of(page->pgmap, struct xe_vram_region, pagemap);
      |                                 ^~
include/linux/container_of.h:19:33: note: in definition of macro 'container_of'
   19 |         void *__mptr = (void *)(ptr);                                   \
      |                                 ^~~
In file included from include/linux/init.h:5,
                 from include/linux/printk.h:6,
                 from include/asm-generic/bug.h:22,
                 from arch/x86/include/asm/bug.h:99,
                 from include/linux/bug.h:5,
                 from include/linux/mmdebug.h:5,
                 from include/linux/mm.h:6:
drivers/gpu/drm/xe/xe_svm.c:344:33: error: 'struct page' has no member named 'pgmap'
  344 |         return container_of(page->pgmap, struct xe_vram_region, pagemap);
      |                                 ^~
include/linux/build_bug.h:78:56: note: in definition of macro '__static_assert'
   78 | #define __static_assert(expr, msg, ...) _Static_assert(expr, msg)
      |                                                        ^~~~
include/linux/container_of.h:20:9: note: in expansion of macro 'static_assert'
   20 |         static_assert(__same_type(*(ptr), ((type *)0)->member) ||       \
      |         ^~~~~~~~~~~~~
include/linux/container_of.h:20:23: note: in expansion of macro '__same_type'
   20 |         static_assert(__same_type(*(ptr), ((type *)0)->member) ||       \
      |                       ^~~~~~~~~~~
drivers/gpu/drm/xe/xe_svm.c:344:16: note: in expansion of macro 'container_of'
  344 |         return container_of(page->pgmap, struct xe_vram_region, pagemap);
      |                ^~~~~~~~~~~~
drivers/gpu/drm/xe/xe_svm.c:344:33: error: 'struct page' has no member named 'pgmap'
  344 |         return container_of(page->pgmap, struct xe_vram_region, pagemap);
      |                                 ^~
include/linux/build_bug.h:78:56: note: in definition of macro '__static_assert'
   78 | #define __static_assert(expr, msg, ...) _Static_assert(expr, msg)
      |                                                        ^~~~
include/linux/container_of.h:20:9: note: in expansion of macro 'static_assert'
   20 |         static_assert(__same_type(*(ptr), ((type *)0)->member) ||       \
      |         ^~~~~~~~~~~~~
include/linux/container_of.h:21:23: note: in expansion of macro '__same_type'
   21 |                       __same_type(*(ptr), void),                        \
      |                       ^~~~~~~~~~~
drivers/gpu/drm/xe/xe_svm.c:344:16: note: in expansion of macro 'container_of'
  344 |         return container_of(page->pgmap, struct xe_vram_region, pagemap);
      |                ^~~~~~~~~~~~
include/linux/compiler_types.h:483:27: error: expression in static assertion is not an integer
  483 | #define __same_type(a, b) __builtin_types_compatible_p(typeof(a), typeof(b))
      |                           ^~~~~~~~~~~~~~~~~~~~~~~~~~~~
include/linux/build_bug.h:78:56: note: in definition of macro '__static_assert'
   78 | #define __static_assert(expr, msg, ...) _Static_assert(expr, msg)
      |                                                        ^~~~
include/linux/container_of.h:20:9: note: in expansion of macro 'static_assert'
   20 |         static_assert(__same_type(*(ptr), ((type *)0)->member) ||       \
      |         ^~~~~~~~~~~~~
include/linux/container_of.h:20:23: note: in expansion of macro '__same_type'
   20 |         static_assert(__same_type(*(ptr), ((type *)0)->member) ||       \
      |                       ^~~~~~~~~~~
drivers/gpu/drm/xe/xe_svm.c:344:16: note: in expansion of macro 'container_of'
  344 |         return container_of(page->pgmap, struct xe_vram_region, pagemap);
      |                ^~~~~~~~~~~~

Caused by commit

  11bbe0d9aa96 ("drm/xe: Add drm_pagemap ops to SVM")

interacting with commit

  089b22f60a0f ("mm: allow compound zone device pages")

from the mm-unstable branch of the mm tree.

I have applied the following merge fix patch for today

From: Stephen Rothwell <sfr@canb.auug.org.au>
Date: Fri, 7 Mar 2025 13:14:37 +1100
Subject: [PATCH] fixup for "drm/xe: Add drm_pagemap ops to SVM"

  089b22f60a0f ("mm: allow compound zone device pages")

from the mm-unstable branch of the mm tree.

Signed-off-by: Stephen Rothwell <sfr@canb.auug.org.au>
---
 drivers/gpu/drm/xe/xe_svm.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/gpu/drm/xe/xe_svm.c b/drivers/gpu/drm/xe/xe_svm.c
index 516898e99b26..3e829c87d7b4 100644
--- a/drivers/gpu/drm/xe/xe_svm.c
+++ b/drivers/gpu/drm/xe/xe_svm.c
@@ -341,7 +341,7 @@ static void xe_svm_garbage_collector_work_func(struct work_struct *w)
 
 static struct xe_vram_region *page_to_vr(struct page *page)
 {
-	return container_of(page->pgmap, struct xe_vram_region, pagemap);
+	return container_of(page_pgmap(page), struct xe_vram_region, pagemap);
 }
 
 static struct xe_tile *vr_to_tile(struct xe_vram_region *vr)
-- 
2.45.2

-- 
Cheers,
Stephen Rothwell

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