On Thu, 2018-02-15 at 16:16 +0100, Greg Kroah-Hartman wrote:
> 4.4-stable review patch. If anyone has any objections, please let me know.
>
> ------------------
>
> From: Arnd Bergmann <arnd@xxxxxxxx>
>
> commit 9e343e87d2c4c707ef8fae2844864d4dde3a2d13 upstream.
[...]
> -static inline int map_word_andequal(struct map_info *map, map_word val1, map_word val2, map_word val3)
> -{
> - int i;
> -
> - for (i = 0; i < map_words(map); i++) {
> - if ((val1.x[i] & val2.x[i]) != val3.x[i])
> - return 0;
> - }
> -
> - return 1;
> -}
[...]
> +#define map_word_andequal(map, val1, val2, val3) \
> +({ \
> + int i, ret = 1; \
> + for (i = 0; i < map_words(map); i++) { \
> + if (((val1).x[i] & (val2).x[i]) != (val2).x[i]) { \
[...]
The right-hand side of this comparison is now using val2 instead of
val3. (This bug seems to be unfixed upstream.)
Ben.
--
Ben Hutchings
Software Developer, Codethink Ltd.