Le 21/12/2020 à 08:42, Cédric Le Goater a écrit :
It fixes this W=1 compile error :

../arch/powerpc/mm/book3s64/hash_utils.c:1867:6: error: no previous prototype 
for ‘hpte_insert_repeating’ [-Werror=missing-prototypes]
  1867 | long hpte_insert_repeating(unsigned long hash, unsigned long vpn,
       |      ^~~~~~~~~~~~~~~~~~~~~

Cc: "Aneesh Kumar K.V" <aneesh.ku...@linux.ibm.com>
Signed-off-by: Cédric Le Goater <c...@kaod.org>
---
  arch/powerpc/include/asm/book3s/64/mmu-hash.h | 5 +++++
  arch/powerpc/mm/book3s64/hash_hugetlbpage.c   | 4 ----
  2 files changed, 5 insertions(+), 4 deletions(-)

diff --git a/arch/powerpc/include/asm/book3s/64/mmu-hash.h 
b/arch/powerpc/include/asm/book3s/64/mmu-hash.h
index a94fd4e0c182..76ff95950309 100644
--- a/arch/powerpc/include/asm/book3s/64/mmu-hash.h
+++ b/arch/powerpc/include/asm/book3s/64/mmu-hash.h
@@ -454,6 +454,11 @@ static inline unsigned long hpt_hash(unsigned long vpn,
  #define HPTE_NOHPTE_UPDATE    0x2
  #define HPTE_USE_KERNEL_KEY   0x4
+extern long hpte_insert_repeating(unsigned long hash, unsigned long vpn,
+                                 unsigned long pa, unsigned long rlags,
+                                 unsigned long vflags, int psize, int ssize);
+
+

Don't copy the 'extern' keyword. It is useless for function prototypes.

Then you could probably fit on only two lines (nowadays 100 chars are allowed 
per line)


  extern int __hash_page_4K(unsigned long ea, unsigned long access,
                          unsigned long vsid, pte_t *ptep, unsigned long trap,
                          unsigned long flags, int ssize, int subpage_prot);
diff --git a/arch/powerpc/mm/book3s64/hash_hugetlbpage.c 
b/arch/powerpc/mm/book3s64/hash_hugetlbpage.c
index b5e9fff8c217..a688e1324ae5 100644
--- a/arch/powerpc/mm/book3s64/hash_hugetlbpage.c
+++ b/arch/powerpc/mm/book3s64/hash_hugetlbpage.c
@@ -16,10 +16,6 @@
  unsigned int hpage_shift;
  EXPORT_SYMBOL(hpage_shift);
-extern long hpte_insert_repeating(unsigned long hash, unsigned long vpn,
-                                 unsigned long pa, unsigned long rlags,
-                                 unsigned long vflags, int psize, int ssize);
-
  int __hash_page_huge(unsigned long ea, unsigned long access, unsigned long 
vsid,
                     pte_t *ptep, unsigned long trap, unsigned long flags,
                     int ssize, unsigned int shift, unsigned int mmu_psize)

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