Commit 4708f318 authored Apr 06, 2020 by Palmer Dabbelt Committed by Linus Torvalds Apr 07, 2020

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>

parent 71725ed1

mm/rmap.c

+1 −1

Original line number	Diff line number	Diff line
		@@ -1372,7 +1372,7 @@ static bool try_to_unmap_one(struct page page, struct vm_area_struct vma,
		struct page *subpage;
		bool ret = true;
		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 */
		if ((flags & TTU_MUNLOCK) && !(vma->vm_flags & VM_LOCKED))

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