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| author | Heiko Carstens <hca@linux.ibm.com> | 2023-04-14 14:30:43 +0200 |
|---|---|---|
| committer | Vasily Gorbik <gor@linux.ibm.com> | 2023-04-20 11:36:29 +0200 |
| commit | 17c51b1ba9c2d4b497349ac1622aafe67be16103 (patch) | |
| tree | 1d66fc120c57a27eebee7de3d101515e8c59d627 /arch/s390/include | |
| parent | 0ae241f4d7d0003f091df6f8d1f45767c3d96d62 (diff) | |
| download | linux-stable-17c51b1ba9c2d4b497349ac1622aafe67be16103.tar.gz linux-stable-17c51b1ba9c2d4b497349ac1622aafe67be16103.tar.bz2 linux-stable-17c51b1ba9c2d4b497349ac1622aafe67be16103.zip | |
s390/mm: use BIT macro to generate SET_MEMORY bit masks
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>
Diffstat (limited to 'arch/s390/include')
| -rw-r--r-- | arch/s390/include/asm/set_memory.h | 18 |
1 files changed, 13 insertions, 5 deletions
diff --git a/arch/s390/include/asm/set_memory.h b/arch/s390/include/asm/set_memory.h index 25f2464dbb7e..ec3f44c602eb 100644 --- a/arch/s390/include/asm/set_memory.h +++ b/arch/s390/include/asm/set_memory.h @@ -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); |