arch/c6x/include/asm/pgtable.h: define dummy pgprot_writecombine for !MMU
authorChen Gang <762976180@qq.com>
Thu, 12 Mar 2015 23:26:03 +0000 (16:26 -0700)
committerLinus Torvalds <torvalds@linux-foundation.org>
Fri, 13 Mar 2015 01:46:08 +0000 (18:46 -0700)
commit65b9ab888cd7bd14b314e9238ce6d4886df846fa
tree859219d6ed862f4b7273fe87f4dcea1b1d74db9b
parent283ee1482f349d6c0c09dfb725db5880afc56813
arch/c6x/include/asm/pgtable.h: define dummy pgprot_writecombine for !MMU

When !MMU, asm-generic will not define default pgprot_writecombine, so c6x
needs to define it by itself.  The related error:

    CC [M]  fs/pstore/ram_core.o
  fs/pstore/ram_core.c: In function 'persistent_ram_vmap':
  fs/pstore/ram_core.c:399:10: error: implicit declaration of function 'pgprot_writecombine' [-Werror=implicit-function-declaration]
     prot = pgprot_writecombine(PAGE_KERNEL);
            ^
  fs/pstore/ram_core.c:399:8: error: incompatible types when assigning to type 'pgprot_t {aka struct <anonymous>}' from type 'int'
     prot = pgprot_writecombine(PAGE_KERNEL);
          ^

Signed-off-by: Chen Gang <gang.chen.5i5j@gmail.com>
Cc: Mark Salter <msalter@redhat.com>
Cc: Aurelien Jacquiot <a-jacquiot@ti.com>
Cc: "Kirill A. Shutemov" <kirill@shutemov.name>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
arch/c6x/include/asm/pgtable.h