diff options
| author | Alexander Gordeev <agordeev@linux.ibm.com> | 2022-12-02 21:23:11 +0300 |
|---|---|---|
| committer | Heiko Carstens <hca@linux.ibm.com> | 2023-01-13 16:15:05 +0300 |
| commit | 12cf6473d23885fe06aa7e7ca58e990fa4f0737c (patch) | |
| tree | 24bddf989d34c92aa28398ff27dcd27a1372c06f /arch/s390/mm | |
| parent | bb1520d581a3a46e2d6e12bb74604ace33404de5 (diff) | |
| download | linux-12cf6473d23885fe06aa7e7ca58e990fa4f0737c.tar.xz | |
s390/maccess: remove dead DAT-off code
As the kernel is executed in DAT-on mode only, remove
unnecessary DAT bit check together with the dead code.
Reviewed-by: Heiko Carstens <hca@linux.ibm.com>
Signed-off-by: Alexander Gordeev <agordeev@linux.ibm.com>
Signed-off-by: Heiko Carstens <hca@linux.ibm.com>
Diffstat (limited to 'arch/s390/mm')
| -rw-r--r-- | arch/s390/mm/maccess.c | 14 |
1 files changed, 5 insertions, 9 deletions
diff --git a/arch/s390/mm/maccess.c b/arch/s390/mm/maccess.c index 4824d1cd33d8..a6314e259f97 100644 --- a/arch/s390/mm/maccess.c +++ b/arch/s390/mm/maccess.c @@ -68,15 +68,11 @@ notrace void *s390_kernel_write(void *dst, const void *src, size_t size) long copied; spin_lock_irqsave(&s390_kernel_write_lock, flags); - if (!(flags & PSW_MASK_DAT)) { - memcpy(dst, src, size); - } else { - while (size) { - copied = s390_kernel_write_odd(tmp, src, size); - tmp += copied; - src += copied; - size -= copied; - } + while (size) { + copied = s390_kernel_write_odd(tmp, src, size); + tmp += copied; + src += copied; + size -= copied; } spin_unlock_irqrestore(&s390_kernel_write_lock, flags); |