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| author | Heiko Carstens <hca@linux.ibm.com> | 2020-10-08 16:28:15 +0200 |
|---|---|---|
| committer | Vasily Gorbik <gor@linux.ibm.com> | 2020-10-09 23:45:30 +0200 |
| commit | db5273975622af17e265d5d96b41427cde4c25b0 (patch) | |
| tree | bf7b6bbc66d8f1d246681a5ea5de41da44473aad /arch/s390 | |
| parent | 4366dd7251259806e57251cb2d699f0863841775 (diff) | |
| download | linux-db5273975622af17e265d5d96b41427cde4c25b0.tar.bz2 | |
s390/uaccess: add default cases for __put_user_fn()/__get_user_fn()
Add default cases for __put_user_fn()/__get_user_fn(). This doesn't
fix anything since the functions are only called with sane values.
However we get rid of smatch warnings:
./arch/s390/include/asm/uaccess.h:143 __get_user_fn() error: uninitialized symbol 'rc'.
Signed-off-by: Heiko Carstens <hca@linux.ibm.com>
Signed-off-by: Vasily Gorbik <gor@linux.ibm.com>
Diffstat (limited to 'arch/s390')
| -rw-r--r-- | arch/s390/include/asm/uaccess.h | 13 |
1 files changed, 9 insertions, 4 deletions
diff --git a/arch/s390/include/asm/uaccess.h b/arch/s390/include/asm/uaccess.h index 23c85801cf04..bf47d93ff1c6 100644 --- a/arch/s390/include/asm/uaccess.h +++ b/arch/s390/include/asm/uaccess.h @@ -60,6 +60,9 @@ raw_copy_to_user(void __user *to, const void *from, unsigned long n); #define INLINE_COPY_TO_USER #endif +int __put_user_bad(void) __attribute__((noreturn)); +int __get_user_bad(void) __attribute__((noreturn)); + #ifdef CONFIG_HAVE_MARCH_Z10_FEATURES #define __put_get_user_asm(to, from, size, spec) \ @@ -109,6 +112,9 @@ static __always_inline int __put_user_fn(void *x, void __user *ptr, unsigned lon (unsigned long *)x, size, spec); break; + default: + __put_user_bad(); + break; } return rc; } @@ -139,6 +145,9 @@ static __always_inline int __get_user_fn(void *x, const void __user *ptr, unsign (unsigned long __user *)ptr, size, spec); break; + default: + __get_user_bad(); + break; } return rc; } @@ -190,8 +199,6 @@ static inline int __get_user_fn(void *x, const void __user *ptr, unsigned long s }) -int __put_user_bad(void) __attribute__((noreturn)); - #define __get_user(x, ptr) \ ({ \ int __gu_err = -EFAULT; \ @@ -238,8 +245,6 @@ int __put_user_bad(void) __attribute__((noreturn)); __get_user(x, ptr); \ }) -int __get_user_bad(void) __attribute__((noreturn)); - unsigned long __must_check raw_copy_in_user(void __user *to, const void __user *from, unsigned long n); |