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s390/topology: let topology_mnest_limit() return unsigned char 

Fixes a couple of compile warnings with gcc 7.1.0 :

arch/s390/kernel/sysinfo.c:578:20:
  note: directive argument in the range [-2147483648, 4]
   sprintf(link_to, "15_1_%d", topology_mnest_limit());

Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
This commit is contained in:
Heiko Carstens 2017-05-04 13:06:58 +02:00 committed by Martin Schwidefsky
parent f5c8b96010
commit 80ba38469a
1 changed files with 1 additions and 1 deletions
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arch/s390/include/asm/sysinfo.h
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@ -146,7 +146,7 @@ extern int topology_max_mnest;
* Returns the maximum nesting level supported by the cpu topology code.
* The current maximum level is 4 which is the drawer level.
*/
static inline int topology_mnest_limit(void)
static inline unsigned char topology_mnest_limit(void)
{
return min(topology_max_mnest, 4);
}