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authorHeiko Carstens <hca@linux.ibm.com>2024-07-16 13:50:52 +0200
committerVasily Gorbik <gor@linux.ibm.com>2024-07-23 16:02:31 +0200
commit030f7951c5b293739301fb616add0f1d3fb46073 (patch)
tree24901e1a41072014dc64325e1d2c30b4fbbf5ccb /arch/s390/mm
parentace76fac944b06e46427e0406f315609f278ef91 (diff)
s390/uaccess: Make s390_kernel_write() usable for decompressor
To avoid lots of ifdefs in C code make s390_kernel_write() usable for the decompressor: simply use memcpy() for this case since there is no write protection enabled that early. Reviewed-by: Alexander Gordeev <agordeev@linux.ibm.com> Tested-by: Sven Schnelle <svens@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/mm')
-rw-r--r--arch/s390/mm/maccess.c4
1 files changed, 2 insertions, 2 deletions
diff --git a/arch/s390/mm/maccess.c b/arch/s390/mm/maccess.c
index 632c3a55feed..28a18c42ba99 100644
--- a/arch/s390/mm/maccess.c
+++ b/arch/s390/mm/maccess.c
@@ -48,7 +48,7 @@ static notrace long s390_kernel_write_odd(void *dst, const void *src, size_t siz
}
/*
- * s390_kernel_write - write to kernel memory bypassing DAT
+ * __s390_kernel_write - write to kernel memory bypassing DAT
* @dst: destination address
* @src: source address
* @size: number of bytes to copy
@@ -61,7 +61,7 @@ static notrace long s390_kernel_write_odd(void *dst, const void *src, size_t siz
*/
static DEFINE_SPINLOCK(s390_kernel_write_lock);
-notrace void *s390_kernel_write(void *dst, const void *src, size_t size)
+notrace void *__s390_kernel_write(void *dst, const void *src, size_t size)
{
void *tmp = dst;
unsigned long flags;