From: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Date: Tue, 8 Oct 2024 19:13:29 +0000 (+0300)
Subject: mm: remove unused stub for can_swapin_thp()
X-Git-Tag: v6.12-rc4~32^2~16
X-Git-Url: http://git.ipfire.org/?a=commitdiff_plain;h=a5e8eb25135a48d400e5a695ba9329bc632c3bb4;p=thirdparty%2Fkernel%2Flinux.git

mm: remove unused stub for can_swapin_thp()

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@linux.intel.com
Fixes: 242d12c98174 ("mm: support large folios swap-in for sync io devices")
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Acked-by: Barry Song <baohua@kernel.org>
Cc: Bill Wendling <morbo@google.com>
Cc: Chuanhua Han <hanchuanhua@oppo.com>
Cc: Justin Stitt <justinstitt@google.com>
Cc: Nathan Chancellor <nathan@kernel.org>
Cc: Nick Desaulniers <ndesaulniers@google.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
---

diff --git a/mm/memory.c b/mm/memory.c
index 2366578015ade..c0869a962ddd6 100644
--- a/mm/memory.c
+++ b/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);