stackvalidate reports the following warnings for __schedule():
stackvalidate: kernel/sched/core.o: __schedule()+0x3e7: duplicate frame pointer save
stackvalidate: kernel/sched/core.o: __schedule()+0x424: sibling call from callable instruction with changed frame pointer
stackvalidate: kernel/sched/core.o: __schedule()+0x431: call without frame pointer save/setup
stackvalidate: kernel/sched/core.o: __schedule()+0x8b8: frame pointer state mismatch
stackvalidate: kernel/sched/core.o: __schedule()+0x447: frame pointer state mismatch
__schedule() is obviously a special case which is allowed to do unusual
things with the frame pointer. Add it to the stackvalidate whitelist.
This results in no actual changes to the generated code.
Signed-off-by: Josh Poimboeuf <jpoimboe@xxxxxxxxxx>
---
kernel/sched/core.c | 2 ++
1 file changed, 2 insertions(+)
diff --git a/kernel/sched/core.c b/kernel/sched/core.c
index 78b4bad10..9f49eae 100644
--- a/kernel/sched/core.c
+++ b/kernel/sched/core.c
@@ -74,6 +74,7 @@
#include <linux/binfmts.h>
#include <linux/context_tracking.h>
#include <linux/compiler.h>
+#include <linux/stackvalidate.h>
#include <asm/switch_to.h>
#include <asm/tlb.h>
@@ -3059,6 +3060,7 @@ static void __sched __schedule(void)
balance_callback(rq);
}
+STACKVALIDATE_IGNORE_FUNC(__schedule);
static inline void sched_submit_work(struct task_struct *tsk)
{
--
2.1.0
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