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| author | Jakub Kicinski <kuba@kernel.org> | 2021-09-16 13:58:38 -0700 |
|---|---|---|
| committer | Jakub Kicinski <kuba@kernel.org> | 2021-09-16 13:58:38 -0700 |
| commit | 561bed688bffedd6bbdfa70af7a4f64f0a3e2140 (patch) | |
| tree | 19256b7a70dcdb9a95c4a7494a0b8bb9db10ef30 /kernel/compat.c | |
| parent | 4b5a3ab17c6c942bd428984b6b37fe3c07f18ab3 (diff) | |
| parent | fc0c0548c1a2e676d3a928aaed70f2d4d254e395 (diff) | |
Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net
No conflicts!
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Diffstat (limited to 'kernel/compat.c')
| -rw-r--r-- | kernel/compat.c | 21 |
1 files changed, 0 insertions, 21 deletions
diff --git a/kernel/compat.c b/kernel/compat.c index 05adfd6fa8bf..55551989d9da 100644 --- a/kernel/compat.c +++ b/kernel/compat.c @@ -269,24 +269,3 @@ get_compat_sigset(sigset_t *set, const compat_sigset_t __user *compat) return 0; } EXPORT_SYMBOL_GPL(get_compat_sigset); - -/* - * Allocate user-space memory for the duration of a single system call, - * in order to marshall parameters inside a compat thunk. - */ -void __user *compat_alloc_user_space(unsigned long len) -{ - void __user *ptr; - - /* If len would occupy more than half of the entire compat space... */ - if (unlikely(len > (((compat_uptr_t)~0) >> 1))) - return NULL; - - ptr = arch_compat_alloc_user_space(len); - - if (unlikely(!access_ok(ptr, len))) - return NULL; - - return ptr; -} -EXPORT_SYMBOL_GPL(compat_alloc_user_space); |
