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zsmalloc: use U suffix for negative literals being shifted

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Fix warning about shifting unsigned literals being undefined behavior.

Link: http://lkml.kernel.org/r/[email protected]
Signed-off-by: Nick Desaulniers <[email protected]>
Suggested-by: Minchan Kim <[email protected]>
Reviewed-by: Sergey Senozhatsky <[email protected]>
Cc: Andy Shevchenko <[email protected]>
Cc: Matthew Wilcox <[email protected]>
Cc: Nick Desaulniers <[email protected]>
Signed-off-by: Andrew Morton <[email protected]>
Signed-off-by: Linus Torvalds <[email protected]>
This commit is contained in:
Nick Desaulniers 2018-01-31 16:20:15 -08:00 • committed by Linus Torvalds
commit 01a6ad9ac8
1 changed files with 1 additions and 1 deletions
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2
mm/zsmalloc.c
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@ -1047,7 +1047,7 @@ static void init_zspage(struct size_class *class, struct zspage *zspage)
* Reset OBJ_TAG_BITS bit to last link to tell
* whether it's allocated object or not.
*/
link->next = -1 << OBJ_TAG_BITS;
link->next = -1UL << OBJ_TAG_BITS;
}
kunmap_atomic(vaddr);
page = next_page;