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| author | Al Viro <viro@zeniv.linux.org.uk> | 2020-02-16 10:26:50 -0500 |
|---|---|---|
| committer | Al Viro <viro@zeniv.linux.org.uk> | 2020-03-27 23:58:52 -0400 |
| commit | dc88588990945b14d6f7ed45b70ef7b1814a5f3e (patch) | |
| tree | 42b15a4e4701017e11aa2ad9d997ee419828fd18 | |
| parent | 0bea4f7beb68db927a05ff4c08b3ce9f32d043f9 (diff) | |
| download | linux-dc88588990945b14d6f7ed45b70ef7b1814a5f3e.tar.bz2 | |
[parisc, s390, sparc64] no need for access_ok() in futex handling
access_ok() is always true on those
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
| -rw-r--r-- | arch/parisc/include/asm/futex.h | 3 | ||||
| -rw-r--r-- | arch/s390/include/asm/futex.h | 2 | ||||
| -rw-r--r-- | arch/sparc/include/asm/futex_64.h | 2 |
3 files changed, 0 insertions, 7 deletions
diff --git a/arch/parisc/include/asm/futex.h b/arch/parisc/include/asm/futex.h index c10cc9010cc1..c459f656c8c3 100644 --- a/arch/parisc/include/asm/futex.h +++ b/arch/parisc/include/asm/futex.h @@ -39,9 +39,6 @@ arch_futex_atomic_op_inuser(int op, int oparg, int *oval, u32 __user *uaddr) int oldval, ret; u32 tmp; - if (!access_ok(uaddr, sizeof(u32))) - return -EFAULT; - _futex_spin_lock_irqsave(uaddr, &flags); ret = -EFAULT; diff --git a/arch/s390/include/asm/futex.h b/arch/s390/include/asm/futex.h index ed965c3ecd5b..26f9144562c9 100644 --- a/arch/s390/include/asm/futex.h +++ b/arch/s390/include/asm/futex.h @@ -28,8 +28,6 @@ static inline int arch_futex_atomic_op_inuser(int op, int oparg, int *oval, int oldval = 0, newval, ret; mm_segment_t old_fs; - if (!access_ok(uaddr, sizeof(u32))) - return -EFAULT; old_fs = enable_sacf_uaccess(); switch (op) { case FUTEX_OP_SET: diff --git a/arch/sparc/include/asm/futex_64.h b/arch/sparc/include/asm/futex_64.h index 84fffaaf59d3..72de967318d7 100644 --- a/arch/sparc/include/asm/futex_64.h +++ b/arch/sparc/include/asm/futex_64.h @@ -35,8 +35,6 @@ static inline int arch_futex_atomic_op_inuser(int op, int oparg, int *oval, { int oldval = 0, ret, tem; - if (!access_ok(uaddr, sizeof(u32))) - return -EFAULT; if (unlikely((((unsigned long) uaddr) & 0x3UL))) return -EINVAL; |