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| author | Josh Poimboeuf <jpoimboe@redhat.com> | 2020-04-29 18:24:47 +0300 |
|---|---|---|
| committer | Jiri Kosina <jkosina@suse.cz> | 2020-05-08 01:12:43 +0300 |
| commit | cb2cceaefb4c4dc28fc27ff1f1b2d258bfc10353 (patch) | |
| tree | b2bdd9f05539a83ab5c7e63d334386650d0916ca | |
| parent | ca376a9374867d09ece6f61803764fb187201294 (diff) | |
| download | linux-cb2cceaefb4c4dc28fc27ff1f1b2d258bfc10353.tar.xz | |
s390: Change s390_kernel_write() return type to match memcpy()
s390_kernel_write()'s function type is almost identical to memcpy().
Change its return type to "void *" so they can be used interchangeably.
Cc: linux-s390@vger.kernel.org
Cc: heiko.carstens@de.ibm.com
Signed-off-by: Josh Poimboeuf <jpoimboe@redhat.com>
Acked-by: Joe Lawrence <joe.lawrence@redhat.com>
Acked-by: Miroslav Benes <mbenes@suse.cz>
Acked-by: Gerald Schaefer <gerald.schaefer@de.ibm.com> # s390
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
| -rw-r--r-- | arch/s390/include/asm/uaccess.h | 2 | ||||
| -rw-r--r-- | arch/s390/mm/maccess.c | 9 |
2 files changed, 7 insertions, 4 deletions
diff --git a/arch/s390/include/asm/uaccess.h b/arch/s390/include/asm/uaccess.h index a470f1fa9f2a..324438889fe1 100644 --- a/arch/s390/include/asm/uaccess.h +++ b/arch/s390/include/asm/uaccess.h @@ -276,6 +276,6 @@ static inline unsigned long __must_check clear_user(void __user *to, unsigned lo } int copy_to_user_real(void __user *dest, void *src, unsigned long count); -void s390_kernel_write(void *dst, const void *src, size_t size); +void *s390_kernel_write(void *dst, const void *src, size_t size); #endif /* __S390_UACCESS_H */ diff --git a/arch/s390/mm/maccess.c b/arch/s390/mm/maccess.c index de7ca4b6718f..22a0be655f27 100644 --- a/arch/s390/mm/maccess.c +++ b/arch/s390/mm/maccess.c @@ -55,19 +55,22 @@ static notrace long s390_kernel_write_odd(void *dst, const void *src, size_t siz */ static DEFINE_SPINLOCK(s390_kernel_write_lock); -void notrace 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; long copied; spin_lock_irqsave(&s390_kernel_write_lock, flags); while (size) { - copied = s390_kernel_write_odd(dst, src, size); - dst += copied; + copied = s390_kernel_write_odd(tmp, src, size); + tmp += copied; src += copied; size -= copied; } spin_unlock_irqrestore(&s390_kernel_write_lock, flags); + + return dst; } static int __no_sanitize_address __memcpy_real(void *dest, void *src, size_t count) |