Groups | Search | Server Info | Keyboard shortcuts | Login | Register [http] [https] [nntp] [nntps]

Groups > linux.kernel > #1577959

[PATCH] jump_label: mark __start/stop___jump_table const

Show all headers | View raw

Attempts to assign values through these pointers would fail.
Mark them const to make sure the failure is compile time.

Cc: Jason Baron <jbaron@akamai.com>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Steven Rostedt <rostedt@goodmis.org>
Cc: Borislav Petkov <bp@alien8.de>
Cc: Andrew Morton <akpm@linux-foundation.org>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: Mel Gorman <mgorman@suse.de>
Cc: Ingo Molnar <mingo@kernel.org>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
---
 include/linux/jump_label.h | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/include/linux/jump_label.h b/include/linux/jump_label.h
index a0547c5..48ed83f 100644
--- a/include/linux/jump_label.h
+++ b/include/linux/jump_label.h
@@ -132,8 +132,8 @@ static __always_inline bool static_key_true(struct static_key *key)
 	return !arch_static_branch(key, true);
 }
 
-extern struct jump_entry __start___jump_table[];
-extern struct jump_entry __stop___jump_table[];
+extern const struct jump_entry __start___jump_table[];
+extern const struct jump_entry __stop___jump_table[];
 
 extern void jump_label_init(void);
 extern void jump_label_lock(void);
-- 
MST

Back to linux.kernel | Previous | Next — Next in thread | Find similar | Unroll thread

Thread

[PATCH] jump_label: mark __start/stop___jump_table const "Michael S. Tsirkin" <mst@redhat.com> - 2017-02-09 22:20 +0100
  Re: [PATCH] jump_label: mark __start/stop___jump_table const "Michael S. Tsirkin" <mst@redhat.com> - 2017-02-09 23:00 +0100

csiph-web