diff options
Diffstat (limited to 'arch/s390/include/asm')
| -rw-r--r-- | arch/s390/include/asm/lowcore.h | 7 | ||||
| -rw-r--r-- | arch/s390/include/asm/processor.h | 10 | ||||
| -rw-r--r-- | arch/s390/include/asm/uaccess.h | 2 |
3 files changed, 11 insertions, 8 deletions
diff --git a/arch/s390/include/asm/lowcore.h b/arch/s390/include/asm/lowcore.h index 47853debb3b9..a47c6e221a95 100644 --- a/arch/s390/include/asm/lowcore.h +++ b/arch/s390/include/asm/lowcore.h @@ -302,12 +302,7 @@ struct _lowcore { */ __u64 ipib; /* 0x0e00 */ __u32 ipib_checksum; /* 0x0e08 */ - /* - * Because the vmcore_info pointer is not 8 byte aligned it never - * should not be accessed directly. For accessing the pointer, first - * copy it to a local pointer variable. - */ - __u8 vmcore_info[8]; /* 0x0e0c */ + __u64 vmcore_info; /* 0x0e0c */ __u8 pad_0x0e14[0x0e18-0x0e14]; /* 0x0e14 */ __u64 os_info; /* 0x0e18 */ __u8 pad_0x0e20[0x0f00-0x0e20]; /* 0x0e20 */ diff --git a/arch/s390/include/asm/processor.h b/arch/s390/include/asm/processor.h index 20d0585cf905..f1700c5c8884 100644 --- a/arch/s390/include/asm/processor.h +++ b/arch/s390/include/asm/processor.h @@ -348,4 +348,14 @@ extern void (*s390_base_ext_handler_fn)(void); ".previous\n" #endif +extern int memcpy_real(void *, void *, size_t); +extern void memcpy_absolute(void *, void *, size_t); + +#define mem_assign_absolute(dest, val) { \ + __typeof__(dest) __tmp = (val); \ + \ + BUILD_BUG_ON(sizeof(__tmp) != sizeof(val)); \ + memcpy_absolute(&(dest), &__tmp, sizeof(__tmp)); \ +} + #endif /* __ASM_S390_PROCESSOR_H */ diff --git a/arch/s390/include/asm/uaccess.h b/arch/s390/include/asm/uaccess.h index 1f3a79bcd262..7e7285179aad 100644 --- a/arch/s390/include/asm/uaccess.h +++ b/arch/s390/include/asm/uaccess.h @@ -381,8 +381,6 @@ clear_user(void __user *to, unsigned long n) return n; } -extern int memcpy_real(void *, void *, size_t); -extern void memcpy_absolute(void *, void *, size_t); extern int copy_to_user_real(void __user *dest, void *src, size_t count); extern int copy_from_user_real(void *dest, void __user *src, size_t count); |
