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| author | Anton Altaparmakov <aia21@cam.ac.uk> | 2010-03-25 21:48:12 +0100 |
|---|---|---|
| committer | Ralf Baechle <ralf@linux-mips.org> | 2010-04-12 18:26:21 +0200 |
| commit | 7b3e543ddb39b69b75c9c24bb54180eca152f541 (patch) | |
| tree | 78e3ef45016424cdb970fe0fb136b31e202a2dfa /arch/mips/mm/cache.c | |
| parent | MIPS: Sibyte: Fix M3 TLB exception handler workaround. (diff) | |
| download | linux-7b3e543ddb39b69b75c9c24bb54180eca152f541.tar.xz linux-7b3e543ddb39b69b75c9c24bb54180eca152f541.zip | |
MIPS: Fix __vmalloc() etc. on MIPS for non-GPL modules
Commit b3594a089f1c17ff919f8f78505c3f20e1f6f8ce (lmo) rsp.
351336929ccf222ae38ff0cb7a8dd5fd5c6236a0 (kernel.org) break non-GPL modules
that use __vmalloc() or any of the vmap(), vm_map_ram(), etc functions on
MIPS.
All those functions are EXPORT_SYMBOL() so are meant to be allowed to be
used by non-GPL kernel modules. These calls all take page protection as
an argument which is normally a constant like PAGE_KERNEL.
This commit causes all protection constants like PAGE_KERNEL to not be
constants and instead to contain the GPL-only symbol _page_cachable_default.
This means that all calls to __vmalloc(), vmap(), etc, cause non-GPL
modules to fail to link with the complaint that they are trying to use the
GPL-only symbol _page_cachable_default...
Change EXPORT_SYMBOL_GPL(_page_cachable_default) to EXPORT_SYMBOL() for
non-GPL modules that call __vmalloc(), vmap(), vm_map_ram() etc.
Signed-off-by: Anton Altaparmakov <aia21@cantab.net>
Cc: Chris Dearman <chris@mips.com>
Cc: linux-mips@linux-mips.org
Cc: linux-kernel@vger.kernel.org
Patchwork: http://patchwork.linux-mips.org/patch/1084/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
Diffstat (limited to 'arch/mips/mm/cache.c')
| -rw-r--r-- | arch/mips/mm/cache.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/arch/mips/mm/cache.c b/arch/mips/mm/cache.c index be8627bc5b02..12af739048fa 100644 --- a/arch/mips/mm/cache.c +++ b/arch/mips/mm/cache.c @@ -133,7 +133,7 @@ void __update_cache(struct vm_area_struct *vma, unsigned long address, } unsigned long _page_cachable_default; -EXPORT_SYMBOL_GPL(_page_cachable_default); +EXPORT_SYMBOL(_page_cachable_default); static inline void setup_protection_map(void) { |