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s390/mm: use BIT macro to generate SET_MEMORY bit masks

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Use BIT macro to generate SET_MEMORY bit masks, which is easier to
maintain if bits get added, or removed.

Reviewed-by: Alexander Gordeev <agordeev@linux.ibm.com>
Signed-off-by: Heiko Carstens <hca@linux.ibm.com>
Signed-off-by: Vasily Gorbik <gor@linux.ibm.com>
This commit is contained in:
Heiko Carstens 2023-04-14 14:30:43 +02:00 committed by Vasily Gorbik
parent 0ae241f4d7
commit 17c51b1ba9
1 changed files with 13 additions and 5 deletions
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18
arch/s390/include/asm/set_memory.h
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@ -6,11 +6,19 @@
extern struct mutex cpa_mutex;
#define SET_MEMORY_RO 1UL
#define SET_MEMORY_RW 2UL
#define SET_MEMORY_NX 4UL
#define SET_MEMORY_X 8UL
#define SET_MEMORY_4K 16UL
enum {
_SET_MEMORY_RO_BIT,
_SET_MEMORY_RW_BIT,
_SET_MEMORY_NX_BIT,
_SET_MEMORY_X_BIT,
_SET_MEMORY_4K_BIT,
};
#define SET_MEMORY_RO BIT(_SET_MEMORY_RO_BIT)
#define SET_MEMORY_RW BIT(_SET_MEMORY_RW_BIT)
#define SET_MEMORY_NX BIT(_SET_MEMORY_NX_BIT)
#define SET_MEMORY_X BIT(_SET_MEMORY_X_BIT)
#define SET_MEMORY_4K BIT(_SET_MEMORY_4K_BIT)
int __set_memory(unsigned long addr, int numpages, unsigned long flags);