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mm: remove unused stub for can_swapin_thp()

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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>
This commit is contained in:
Andy Shevchenko 2024-10-08 22:13:29 +03:00 committed by Andrew Morton
parent 3f4e74cb3f
commit a5e8eb2513
1 changed files with 0 additions and 5 deletions
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5
mm/memory.c
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@ -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);