diff options
| author | Linus Torvalds <torvalds@linux-foundation.org> | 2013-04-17 08:46:19 -0700 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2013-08-04 16:26:03 +0800 |
| commit | c733e1a2c459c09fe2510bfa49e2571b532be97c (patch) | |
| tree | d2f259106ed9a8133a497d4491edff9013f9e050 | |
| parent | 17a9afa3e0039e9f0d0caa3a1a5a92b2b7671c3e (diff) | |
s390: move dummy io_remap_pfn_range() to asm/pgtable.h
commit 4f2e29031e6c67802e7370292dd050fd62f337ee upstream.
Commit b4cbb197c7e7 ("vm: add vm_iomap_memory() helper function") added
a helper function wrapper around io_remap_pfn_range(), and every other
architecture defined it in <asm/pgtable.h>.
The s390 choice of <asm/io.h> may make sense, but is not very convenient
for this case, and gratuitous differences like that cause unexpected errors like this:
mm/memory.c: In function 'vm_iomap_memory':
mm/memory.c:2439:2: error: implicit declaration of function 'io_remap_pfn_range' [-Werror=implicit-function-declaration]
Glory be the kbuild test robot who noticed this, bisected it, and
reported it to the guilty parties (ie me).
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Martin Schwidefsky <schwidefsky@de.ibm.com>
Cc: Heiko Carstens <heiko.carstens@de.ibm.com>
[bwh: Backported to 3.2: the macro was not defined, so this is an addition
and not a move]
Signed-off-by: Ben Hutchings <ben@decadent.org.uk>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
| -rw-r--r-- | arch/s390/include/asm/pgtable.h | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/arch/s390/include/asm/pgtable.h b/arch/s390/include/asm/pgtable.h index 011358c1b18e..2f36a66afe72 100644 --- a/arch/s390/include/asm/pgtable.h +++ b/arch/s390/include/asm/pgtable.h @@ -67,6 +67,10 @@ static inline int is_zero_pfn(unsigned long pfn) #define my_zero_pfn(addr) page_to_pfn(ZERO_PAGE(addr)) +/* TODO: s390 cannot support io_remap_pfn_range... */ +#define io_remap_pfn_range(vma, vaddr, pfn, size, prot) \ + remap_pfn_range(vma, vaddr, pfn, size, prot) + #endif /* !__ASSEMBLY__ */ /* |