The patch titled
Subject: mm: remove unused stub for can_swapin_thp()
has been added to the -mm mm-hotfixes-unstable branch. Its filename is
mm-remove-unused-stub-for-can_swapin_thp.patch
This patch will shortly appear at
https://git.kernel.org/pub/scm/linux/kernel/git/akpm/25-new.git/tree/patches/mm-remove-unused-stub-for-can_swapin_thp.patch
This patch will later appear in the mm-hotfixes-unstable branch at
git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm
Before you just go and hit "reply", please:
a) Consider who else should be cc'ed
b) Prefer to cc a suitable mailing list as well
c) Ideally: find the original patch on the mailing list and do a
reply-to-all to that, adding suitable additional cc's
*** Remember to use Documentation/process/submit-checklist.rst when testing your code ***
The -mm tree is included into linux-next via the mm-everything
branch at git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm
and is updated there every 2-3 working days
------------------------------------------------------
From: Andy Shevchenko <andriy.shevchenko@xxxxxxxxxxxxxxx>
Subject: mm: remove unused stub for can_swapin_thp()
Date: Tue, 8 Oct 2024 22:13:29 +0300
When can_swapin_thp() is unused, it prevents kernel builds with clang,
`make W=1` and CONFIG_WERROR=y:
mm/memory.c:4184:20: error: unused function 'can_swapin_thp' [-Werror,-Wunused-function]
Fix this by removing the unused stub.
See also commit 6863f5643dd7 ("kbuild: allow Clang to find unused static
inline functions for W=1 build").
Link: https://lkml.kernel.org/r/20241008191329.2332346-1-andriy.shevchenko@xxxxxxxxxxxxxxx
Fixes: 242d12c98174 ("mm: support large folios swap-in for sync io devices")
Signed-off-by: Andy Shevchenko <andriy.shevchenko@xxxxxxxxxxxxxxx>
Acked-by: Barry Song <baohua@xxxxxxxxxx>
Cc: Bill Wendling <morbo@xxxxxxxxxx>
Cc: Chuanhua Han <hanchuanhua@xxxxxxxx>
Cc: Justin Stitt <justinstitt@xxxxxxxxxx>
Cc: Nathan Chancellor <nathan@xxxxxxxxxx>
Cc: Nick Desaulniers <ndesaulniers@xxxxxxxxxx>
Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
---
mm/memory.c | 5 -----
1 file changed, 5 deletions(-)
--- a/mm/memory.c~mm-remove-unused-stub-for-can_swapin_thp
+++ a/mm/memory.c
@@ -4181,11 +4181,6 @@ fallback:
return __alloc_swap_folio(vmf);
}
#else /* !CONFIG_TRANSPARENT_HUGEPAGE */
-static inline bool can_swapin_thp(struct vm_fault *vmf, pte_t *ptep, int nr_pages)
-{
- return false;
-}
-
static struct folio *alloc_swap_folio(struct vm_fault *vmf)
{
return __alloc_swap_folio(vmf);
_
Patches currently in -mm which might be from andriy.shevchenko@xxxxxxxxxxxxxxx are
mm-remove-unused-stub-for-can_swapin_thp.patch
resource-replace-open-coded-resource_intersection.patch
resource-introduce-is_type_match-helper-and-use-it.patch
