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Message-ID: <20250311131510.2111c8c3@canb.auug.org.au>
Date: Tue, 11 Mar 2025 13:15:10 +1100
From: Stephen Rothwell <sfr@...b.auug.org.au>
To: Andrew Morton <akpm@...ux-foundation.org>, Dave Airlie
<airlied@...hat.com>
Cc: Lucas De Marchi <lucas.demarchi@...el.com>, Thomas Hellström <thomas.hellstrom@...ux.intel.com>, Alistair Popple
<apopple@...dia.com>, Balbir Singh <balbirs@...dia.com>, Matthew Brost
<matthew.brost@...el.com>, DRM XE List <intel-xe@...ts.freedesktop.org>,
Linux Kernel Mailing List <linux-kernel@...r.kernel.org>, Linux Next
Mailing List <linux-next@...r.kernel.org>, DRI
<dri-devel@...ts.freedesktop.org>
Subject: Re: linux-next: build failure after merge of the drm-xe tree
Hi Stephen,
On Fri, 7 Mar 2025 13:21:12 +1100 Stephen Rothwell <sfr@...b.auug.org.au> wrote:
>
> 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@...b.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@...b.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
This is now a semantic conflict between the mm tree and the drm tree.
--
Cheers,
Stephen Rothwell
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