[PATCH] mm: eliminate "expecting prototype" kernel-doc warnings

[Randy Dunlap <rdunlap@infradead.org>]

Fix stray kernel-doc warnings in mm/ due to mis-typed or missing
function names.

Quietens these kernel-doc warnings:

../mm/mmu_gather.c:264: warning: expecting prototype for tlb_gather_mmu(). Prototype was for __tlb_gather_mmu() instead
../mm/oom_kill.c:180: warning: expecting prototype for Check whether unreclaimable slab amount is greater than(). Prototype was for should_dump_unreclaim_slab() instead
../mm/shuffle.c:155: warning: expecting prototype for shuffle_free_memory(). Prototype was for __shuffle_free_memory() instead

Signed-off-by: Randy Dunlap <rdunlap@infradead.org>
Cc: Andrew Morton <akpm@linux-foundation.org>
Cc: linux-mm@kvack.org
---
 mm/mmu_gather.c |    2 +-
 mm/oom_kill.c   |    7 ++++---
 mm/shuffle.c    |    2 +-
 3 files changed, 6 insertions(+), 5 deletions(-)

--- linux-next-20210409.orig/mm/mmu_gather.c
+++ linux-next-20210409/mm/mmu_gather.c
@@ -250,7 +250,7 @@ void tlb_flush_mmu(struct mmu_gather *tl
 }
 
 /**
- * tlb_gather_mmu - initialize an mmu_gather structure for page-table tear-down
+ * __tlb_gather_mmu - initialize an mmu_gather structure for page-table tear-down
  * @tlb: the mmu_gather structure to initialize
  * @mm: the mm_struct of the target address space
  * @fullmm: @mm is without users and we're going to destroy the full address
--- linux-next-20210409.orig/mm/oom_kill.c
+++ linux-next-20210409/mm/oom_kill.c
@@ -171,10 +171,11 @@ static bool oom_unkillable_task(struct t
 }
 
 /**
- * Check whether unreclaimable slab amount is greater than
- * all user memory(LRU pages).
+ * should_dump_unreclaim_slab - Check whether unreclaimable slab amount
+ * is greater than all user memory (LRU pages).
+ *
  * dump_unreclaimable_slab() could help in the case that
- * oom due to too much unreclaimable slab used by kernel.
+ * oom is due to too much unreclaimable slab used by kernel.
 */
 static bool should_dump_unreclaim_slab(void)
 {
--- linux-next-20210409.orig/mm/shuffle.c
+++ linux-next-20210409/mm/shuffle.c
@@ -148,7 +148,7 @@ void __meminit __shuffle_zone(struct zon
 }
 
 /**
- * shuffle_free_memory - reduce the predictability of the page allocator
+ * __shuffle_free_memory - reduce the predictability of the page allocator
  * @pgdat: node page data
  */
 void __meminit __shuffle_free_memory(pg_data_t *pgdat)