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mm/gup.c: mark undo_dev_pagemap as __maybe_unused

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[ Upstream commit 790c73690c ]

Several mips builds generate the following build warning.

  mm/gup.c:1788:13: warning: 'undo_dev_pagemap' defined but not used

The function is declared unconditionally but only called from behind
various ifdefs. Mark it __maybe_unused.

Link: http://lkml.kernel.org/r/1562072523-22311-1-git-send-email-linux@roeck-us.net
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
Reviewed-by: Andrew Morton <akpm@linux-foundation.org>
Cc: Stephen Rothwell <sfr@canb.auug.org.au>
Cc: Robin Murphy <robin.murphy@arm.com>
Cc: Kirill A. Shutemov <kirill.shutemov@linux.intel.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
This commit is contained in:
Guenter Roeck
2019-07-11 20:57:46 -07:00
committed by Greg Kroah-Hartman
parent 8aaa5eef4c
commit ffd51eba91
1 changed files with 2 additions and 1 deletions
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3
mm/gup.c
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@@ -1696,7 +1696,8 @@ static inline pte_t gup_get_pte(pte_t *ptep)
} }
#endif #endif
static void undo_dev_pagemap(int *nr, int nr_start, struct page **pages) static void __maybe_unused undo_dev_pagemap(int *nr, int nr_start,
struct page **pages)
{ {
while ((*nr) - nr_start) { while ((*nr) - nr_start) {
struct page *page = pages[--(*nr)]; struct page *page = pages[--(*nr)];