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mm: prevent a warning when casting void* -> enum
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>
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@ -1372,7 +1372,7 @@ static bool try_to_unmap_one(struct page *page, struct vm_area_struct *vma,
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struct page *subpage;
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bool ret = true;
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struct mmu_notifier_range range;
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enum ttu_flags flags = (enum ttu_flags)arg;
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enum ttu_flags flags = (enum ttu_flags)(long)arg;
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/* munlock has nothing to gain from examining un-locked vmas */
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if ((flags & TTU_MUNLOCK) && !(vma->vm_flags & VM_LOCKED))
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