diff options
| author | Michal Luczaj <mhal@rbox.co> | 2024-11-19 16:31:43 +0300 |
|---|---|---|
| committer | Paolo Abeni <pabeni@redhat.com> | 2024-11-28 10:57:42 +0300 |
| commit | 49b2b973325add467270e906d4d794aa6679b38b (patch) | |
| tree | 60dc45d6d52ff90178d5b51b5824531dd454d011 /include | |
| parent | 02020056647017e70509bb58c3096448117099e1 (diff) | |
| download | linux-49b2b973325add467270e906d4d794aa6679b38b.tar.xz | |
net: Comment copy_from_sockptr() explaining its behaviour
copy_from_sockptr() has a history of misuse. Add a comment explaining that
the function follows API of copy_from_user(), i.e. returns 0 for success,
or number of bytes not copied on error.
Signed-off-by: Michal Luczaj <mhal@rbox.co>
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
Diffstat (limited to 'include')
| -rw-r--r-- | include/linux/sockptr.h | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/include/linux/sockptr.h b/include/linux/sockptr.h index 195debe2b1db..3e6c8e9d67ae 100644 --- a/include/linux/sockptr.h +++ b/include/linux/sockptr.h @@ -53,6 +53,8 @@ static inline int copy_from_sockptr_offset(void *dst, sockptr_t src, /* Deprecated. * This is unsafe, unless caller checked user provided optlen. * Prefer copy_safe_from_sockptr() instead. + * + * Returns 0 for success, or number of bytes not copied on error. */ static inline int copy_from_sockptr(void *dst, sockptr_t src, size_t size) { |