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| author | Sahara <keun-o.park@darkmatter.ae> | 2017-02-16 18:29:15 +0000 |
|---|---|---|
| committer | Kees Cook <keescook@chromium.org> | 2017-04-04 14:30:29 -0700 |
| commit | 96dc4f9fb64690fc34410415fd1fc609cf803f61 (patch) | |
| tree | 31971ed38668c7492910a70da3b6e1faf5f0509f /include/linux/thread_info.h | |
| parent | 4495c08e84729385774601b5146d51d9e5849f81 (diff) | |
| download | lwn-96dc4f9fb64690fc34410415fd1fc609cf803f61.tar.gz lwn-96dc4f9fb64690fc34410415fd1fc609cf803f61.zip | |
usercopy: Move enum for arch_within_stack_frames()
This patch moves the arch_within_stack_frames() return value enum up in
the header files so that per-architecture implementations can reuse the
same return values.
Signed-off-by: Sahara <keun-o.park@darkmatter.ae>
Signed-off-by: James Morse <james.morse@arm.com>
[kees: adjusted naming and commit log]
Signed-off-by: Kees Cook <keescook@chromium.org>
Diffstat (limited to 'include/linux/thread_info.h')
| -rw-r--r-- | include/linux/thread_info.h | 12 |
1 files changed, 12 insertions, 0 deletions
diff --git a/include/linux/thread_info.h b/include/linux/thread_info.h index 58373875e8ee..0dbe41be6181 100644 --- a/include/linux/thread_info.h +++ b/include/linux/thread_info.h @@ -22,6 +22,18 @@ #endif #include <linux/bitops.h> + +/* + * For per-arch arch_within_stack_frames() implementations, defined in + * asm/thread_info.h. + */ +enum { + BAD_STACK = -1, + NOT_STACK = 0, + GOOD_FRAME, + GOOD_STACK, +}; + #include <asm/thread_info.h> #ifdef __KERNEL__ |