2.6.12-rc3-mm2: ppc pte_offset_map()

Sean Neakums sneakums at zork.net
Mon May 2 01:08:25 EST 2005

On my Mackertosh (PowerBook5.4), build fails with the following:

  fs/proc/task_mmu.c: In function `smaps_pte_range':
  fs/proc/task_mmu.c:177: warning: implicit declaration of function `kmap_atomic'
  fs/proc/task_mmu.c:177: error: `KM_PTE0' undeclared (first use in this function)
  fs/proc/task_mmu.c:177: error: (Each undeclared identifier is reported only once
  fs/proc/task_mmu.c:177: error: for each function it appears in.)
  fs/proc/task_mmu.c:207: warning: implicit declaration of function `kunmap_atomic'

With the naive patch below, it builds with this warning and everything works.

  fs/proc/task_mmu.c: In function `smaps_pte_range':
  fs/proc/task_mmu.c:208: warning: passing arg 1 of `kunmap_atomic' makes pointer from integer without a cast

I tried including linux/highmem.h in asm-ppc/pgtable.h
(smaps_pte_range() -> pte_offset_map() -> kmap_atomic()), but that
doesn't work.

--- S12-rc3-mm2/fs/proc/task_mmu.c~	2005-05-01 15:52:55.000000000 +0100
+++ S12-rc3-mm2/fs/proc/task_mmu.c	2005-05-01 15:23:22.000000000 +0100
@@ -1,4 +1,5 @@
 #include <linux/mm.h>
+#include <linux/highmem.h>
 #include <linux/hugetlb.h>
 #include <linux/mount.h>
 #include <linux/seq_file.h>

Dag vijandelijk luchtschip de huismeester is dood

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