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authorJakub Kicinski <kuba@kernel.org>2021-09-16 13:58:38 -0700
committerJakub Kicinski <kuba@kernel.org>2021-09-16 13:58:38 -0700
commit561bed688bffedd6bbdfa70af7a4f64f0a3e2140 (patch)
tree19256b7a70dcdb9a95c4a7494a0b8bb9db10ef30 /kernel/compat.c
parent4b5a3ab17c6c942bd428984b6b37fe3c07f18ab3 (diff)
parentfc0c0548c1a2e676d3a928aaed70f2d4d254e395 (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.c21
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);