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mm: prevent a warning when casting void* -> enum

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I recently build the RISC-V port with LLVM trunk, which has introduced a
new warning when casting from a pointer to an enum of a smaller size.
This patch simply casts to a long in the middle to stop the warning.  I'd
be surprised this is the only one in the kernel, but it's the only one I
saw.

Signed-off-by: Palmer Dabbelt <palmerdabbelt@google.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Reviewed-by: Andrew Morton <akpm@linux-foundation.org>
Link: http://lkml.kernel.org/r/20200227211741.83165-1-palmer@dabbelt.com
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
This commit is contained in:
Palmer Dabbelt 2020-04-06 20:08:00 -07:00 committed by Linus Torvalds
parent 71725ed10c
commit 4708f31885
1 changed files with 1 additions and 1 deletions
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2
mm/rmap.c
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@ -1372,7 +1372,7 @@ static bool try_to_unmap_one(struct page *page, struct vm_area_struct *vma,
struct page *subpage; struct page *subpage;
bool ret = true; bool ret = true;
struct mmu_notifier_range range; struct mmu_notifier_range range;
enum ttu_flags flags = (enum ttu_flags)arg; enum ttu_flags flags = (enum ttu_flags)(long)arg;
/* munlock has nothing to gain from examining un-locked vmas */ /* munlock has nothing to gain from examining un-locked vmas */
if ((flags & TTU_MUNLOCK) && !(vma->vm_flags & VM_LOCKED)) if ((flags & TTU_MUNLOCK) && !(vma->vm_flags & VM_LOCKED))