[PATCH 09/11] tools headers: Sync linux/gfp_types.h with kernel sources

[PATCH 09/11] tools headers: Sync linux/gfp_types.h with kernel sources

[Namhyung Kim]

To pick up changes from:

  4c0a17e28340e458 ("slab: prevent recursive kmalloc() in alloc_empty_sheaf()")

This would be used to handle GFP masks in the perf code and address these
tools/perf build warnings:

  Warning: Kernel ABI header differences:
    diff -u tools/include/linux/gfp_types.h include/linux/gfp_types.h

Please see tools/include/README.kernel-copies.

Cc: linux-mm@kvack.org
Signed-off-by: Namhyung Kim <namhyung@kernel.org>
---
 tools/include/linux/gfp_types.h | 6 ------
 1 file changed, 6 deletions(-)

diff --git a/tools/include/linux/gfp_types.h b/tools/include/linux/gfp_types.h
index 65db9349f9053c70..3de43b12209ee79f 100644
--- a/tools/include/linux/gfp_types.h
+++ b/tools/include/linux/gfp_types.h
@@ -55,9 +55,7 @@ enum {
 #ifdef CONFIG_LOCKDEP
 	___GFP_NOLOCKDEP_BIT,
 #endif
-#ifdef CONFIG_SLAB_OBJ_EXT
 	___GFP_NO_OBJ_EXT_BIT,
-#endif
 	___GFP_LAST_BIT
 };
 
@@ -98,11 +96,7 @@ enum {
 #else
 #define ___GFP_NOLOCKDEP	0
 #endif
-#ifdef CONFIG_SLAB_OBJ_EXT
 #define ___GFP_NO_OBJ_EXT       BIT(___GFP_NO_OBJ_EXT_BIT)
-#else
-#define ___GFP_NO_OBJ_EXT       0
-#endif
 
 /*
  * Physical address zone modifiers (see linux/mmzone.h - low four bits)
-- 
2.52.0.351.gbe84eed79e-goog

Re: [PATCH 09/11] tools headers: Sync linux/gfp_types.h with kernel sources

[SeongJae Park]

On Mon, 22 Dec 2025 14:57:14 -0800 Namhyung Kim <namhyung@kernel.org> wrote:

> To pick up changes from:
> 
>   4c0a17e28340e458 ("slab: prevent recursive kmalloc() in alloc_empty_sheaf()")
> 
> This would be used to handle GFP masks in the perf code and address these
> tools/perf build warnings:
> 
>   Warning: Kernel ABI header differences:
>     diff -u tools/include/linux/gfp_types.h include/linux/gfp_types.h
> 
> Please see tools/include/README.kernel-copies.

Nit.  I don't find the file on linux-next tree.  Do you mean
tools/include/uapi/README [1]?

[1] https://git.kernel.org/pub/scm/linux/kernel/git/next/linux-next.git/tree/tools/include/uapi/README

> 
> Cc: linux-mm@kvack.org
> Signed-off-by: Namhyung Kim <namhyung@kernel.org>

Other than the above trivial nit,

Acked-by: SeongJae Park <sj@kernel.org>


Thanks,
SJ

[...]

Re: [PATCH 09/11] tools headers: Sync linux/gfp_types.h with kernel sources

[Namhyung Kim]

Hi SeongJae,

On Mon, Dec 22, 2025 at 05:00:57PM -0800, SeongJae Park wrote:
> On Mon, 22 Dec 2025 14:57:14 -0800 Namhyung Kim <namhyung@kernel.org> wrote:
> 
> > To pick up changes from:
> > 
> >   4c0a17e28340e458 ("slab: prevent recursive kmalloc() in alloc_empty_sheaf()")
> > 
> > This would be used to handle GFP masks in the perf code and address these
> > tools/perf build warnings:
> > 
> >   Warning: Kernel ABI header differences:
> >     diff -u tools/include/linux/gfp_types.h include/linux/gfp_types.h
> > 
> > Please see tools/include/README.kernel-copies.
> 
> Nit.  I don't find the file on linux-next tree.  Do you mean
> tools/include/uapi/README [1]?
> 
> [1] https://git.kernel.org/pub/scm/linux/kernel/git/next/linux-next.git/tree/tools/include/uapi/README

Oops, you're right.  I've used a wrong template.  Will fix.

> 
> > 
> > Cc: linux-mm@kvack.org
> > Signed-off-by: Namhyung Kim <namhyung@kernel.org>
> 
> Other than the above trivial nit,
> 
> Acked-by: SeongJae Park <sj@kernel.org>

Thanks for your review!
Namhyung