Commit bce133ab authored Mar 20, 2017 by Heiko Carstens Committed by Greg Kroah-Hartman May 09, 2018

s390/facilites: use stfle_fac_list array size for MAX_FACILITY_BIT



commit 6f5165e864d240d15675cc2fb5a369d57e1f60d0 upstream.

Use the actual size of the facility list array within the lowcore
structure for the MAX_FACILITY_BIT define instead of a comment which
states what this is good for. This makes it a bit harder to break
things.

Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

parent a801ff4d

arch/s390/include/asm/facility.h

+1 −1

Original line number	Diff line number	Diff line
		@@ -15,7 +15,7 @@
		#include <linux/preempt.h>
		#include <asm/lowcore.h>

		#define MAX_FACILITY_BIT (2568) / stfle_fac_list has 256 bytes */
		#define MAX_FACILITY_BIT (sizeof(((struct lowcore )0)->stfle_fac_list) 8)

		static inline void __set_facility(unsigned long nr, void *facilities)
		{