The patch titled
Subject: lib: bitmap: add missing mask in bitmap_shift_right
has been added to the -mm tree. Its filename is
lib-bitmap-add-missing-mask-in-bitmap_shift_right.patch
This patch should soon appear at
http://ozlabs.org/~akpm/mmots/broken-out/lib-bitmap-add-missing-mask-in-bitmap_shift_right.patch
and later at
http://ozlabs.org/~akpm/mmotm/broken-out/lib-bitmap-add-missing-mask-in-bitmap_shift_right.patch
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------------------------------------------------------
From: Rasmus Villemoes <linux@xxxxxxxxxxxxxxxxxx>
Subject: lib: bitmap: add missing mask in bitmap_shift_right
There is no guarantee that *src does not contain garbage bits outside the
lower nbits, so we need to mask it before the shift-and-assign.
Signed-off-by: Rasmus Villemoes <linux@xxxxxxxxxxxxxxxxxx>
Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
---
include/linux/bitmap.h | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff -puN include/linux/bitmap.h~lib-bitmap-add-missing-mask-in-bitmap_shift_right include/linux/bitmap.h
--- a/include/linux/bitmap.h~lib-bitmap-add-missing-mask-in-bitmap_shift_right
+++ a/include/linux/bitmap.h
@@ -284,7 +284,7 @@ static inline void bitmap_shift_right(un
const unsigned long *src, int n, int nbits)
{
if (small_const_nbits(nbits))
- *dst = *src >> n;
+ *dst = (*src & BITMAP_LAST_WORD_MASK(nbits)) >> n;
else
__bitmap_shift_right(dst, src, n, nbits);
}
_
Patches currently in -mm which might be from linux@xxxxxxxxxxxxxxxxxx are
lib-list_sort_test-return-enomem-when-allocation-fails.patch
lib-list_sort_test-add-extra-corruption-check.patch
lib-list_sort_test-simplify-and-harden-cleanup.patch
lib-list_sortc-limit-number-of-unused-cmp-callbacks.patch
lib-list_sortc-convert-to-pr_foo.patch
lib-list_sortc-convert-to-pr_foo-fix.patch
lib-bitmap-make-nbits-parameter-of-bitmap_empty-unsigned.patch
lib-bitmap-make-nbits-parameter-of-bitmap_full-unsigned.patch
lib-bitmap-make-nbits-parameter-of-bitmap_equal-unsigned.patch
lib-bitmap-make-nbits-parameter-of-bitmap_complement-unsigned.patch
lib-bitmap-remove-unnecessary-mask-from-bitmap_complement.patch
lib-bitmap-make-nbits-parameter-of-bitmap_andorxorandnot-unsigned.patch
lib-bitmap-make-nbits-parameter-of-bitmap_intersects-unsigned.patch
lib-bitmap-make-nbits-parameter-of-bitmap_subset-unsigned.patch
lib-bitmap-make-nbits-parameter-of-bitmap_weight-unsigned.patch
lib-bitmap-make-the-start-index-of-bitmap_set-unsigned.patch
lib-bitmap-make-the-start-index-of-bitmap_clear-unsigned.patch
lib-bitmap-simplify-bitmap_parselist.patch
lib-bitmap-fix-typo-in-kerneldoc-for-bitmap_pos_to_ord.patch
lib-bitmap-change-parameter-of-bitmap__region-to-unsigned.patch
lib-bitmap-micro-optimize-bitmap_allocate_region.patch
lib-bitmap-add-missing-mask-in-bitmap_shift_right.patch
lib-bitmap-add-missing-mask-in-bitmap_and.patch
lib-bitmap-add-missing-mask-in-bitmap_andnot.patch
checkpatchpl-also-suggest-else-if-when-if-follows-brace.patch
linux-next.patch
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