linux-kernel - Re: [PATCH 5/5] mm: completely abstract unnecessary adj

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Message-ID: <55e537ca-515e-4068-9b18-611eb62c1676@lucifer.local>
Date: Mon, 27 Jan 2025 19:58:38 +0000
From: Lorenzo Stoakes <lorenzo.stoakes@...cle.com>
To: kernel test robot <lkp@...el.com>,
        Andrew Morton <akpm@...ux-foundation.org>
Cc: oe-kbuild-all@...ts.linux.dev,
        Linux Memory Management List <linux-mm@...ck.org>,
        "Liam R . Howlett" <Liam.Howlett@...cle.com>,
        Vlastimil Babka <vbabka@...e.cz>, Jann Horn <jannh@...gle.com>,
        linux-kernel@...r.kernel.org
Subject: Re: [PATCH 5/5] mm: completely abstract unnecessary adj_start
 calculation

On Tue, Jan 28, 2025 at 02:50:55AM +0800, kernel test robot wrote:
> Hi Lorenzo,
>
> kernel test robot noticed the following build warnings:
>
> [auto build test WARNING on akpm-mm/mm-everything]
>
> url:    https://github.com/intel-lab-lkp/linux/commits/Lorenzo-Stoakes/mm-simplify-vma-merge-structure-and-expand-comments/20250127-235322
> base:   https://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm.git mm-everything
> patch link:    https://lore.kernel.org/r/ef00aec42a892fe6ac9557b3a11f18f30a2e51b3.1737929364.git.lorenzo.stoakes%40oracle.com
> patch subject: [PATCH 5/5] mm: completely abstract unnecessary adj_start calculation
> config: um-randconfig-001-20250128 (https://download.01.org/0day-ci/archive/20250128/202501280232.qYHi6Rkt-lkp@intel.com/config)
> compiler: gcc-12 (Debian 12.2.0-14) 12.2.0
> reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20250128/202501280232.qYHi6Rkt-lkp@intel.com/reproduce)
>
[snap]

Hm, this is actually only applicable in the case that
CONFIG_TRANSPARENT_HUGEPAGE is specified, I missed the stub.

Andrew - if this doesn't go for a respin before the merge window ends, I attach
a fix-patch which should resolve this.

Thanks!

----8<----
>From 47cf78f1975133fea2862830b43ab9a6937fef78 Mon Sep 17 00:00:00 2001
From: Lorenzo Stoakes <lorenzo.stoakes@...cle.com>
Date: Mon, 27 Jan 2025 19:56:13 +0000
Subject: [PATCH] fixup

---
 include/linux/huge_mm.h | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/include/linux/huge_mm.h b/include/linux/huge_mm.h
index 43f76b54b522..e1bea54820ff 100644
--- a/include/linux/huge_mm.h
+++ b/include/linux/huge_mm.h
@@ -571,7 +571,7 @@ static inline int madvise_collapse(struct vm_area_struct *vma,
 static inline void vma_adjust_trans_huge(struct vm_area_struct *vma,
 					 unsigned long start,
 					 unsigned long end,
-					 long adjust_next)
+					 struct vm_area_struct *next)
 {
 }
 static inline int is_swap_pmd(pmd_t pmd)
--
2.48.0