On 01.07.24 05:40, Zhao Mengmeng wrote:
try_grab_folio_fast() was used in gup_hugepte(), while itself was
defined after gup_hugepte(), so add a forward declaration to eliminate
the -Wimplicit-function-declaration warning.
Reported-by: kernel test robot <lkp@xxxxxxxxx>
Closes: https://lore.kernel.org/oe-kbuild-all/202407010039.D3sIu3fu-lkp@xxxxxxxxx/
Signed-off-by: Zhao Mengmeng <zhaomengmeng@xxxxxxxxxx>
---
mm/gup.c | 3 +++
1 file changed, 3 insertions(+)
diff --git a/mm/gup.c b/mm/gup.c
index 7439359d0b71..222b83a87d7d 100644
--- a/mm/gup.c
+++ b/mm/gup.c
@@ -488,6 +488,9 @@ static unsigned long hugepte_addr_end(unsigned long addr, unsigned long end,
return (__boundary - 1 < end - 1) ? __boundary : end;
}
+static struct folio *try_grab_folio_fast(struct page *page, int refs,
+ unsigned int flags);
+
This function should really be called "gup_fast_", just like all other
gup_fast_ specific functions. I might send some follow-up cleanups later.
--
Cheers,
David / dhildenb
