6.6-stable review patch. If anyone has any objections, please let me know.
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From: Jinjie Ruan ruanjinjie@huawei.com
[ Upstream commit 4e7b4ff2dcaed228cb2fb7bfe720262c98ec1bb9 ]
perf_callchain_store() return 0 on success, -1 otherwise, fix callchain_trace() to return correct bool value. So walk_stackframe() can have a chance to stop walking the stack ahead.
Fixes: 70ccc7c0667b ("ARM: 9258/1: stacktrace: Make stack walk callback consistent with generic code") Signed-off-by: Jinjie Ruan ruanjinjie@huawei.com Signed-off-by: Russell King (Oracle) rmk+kernel@armlinux.org.uk Signed-off-by: Sasha Levin sashal@kernel.org --- arch/arm/kernel/perf_callchain.c | 3 +-- 1 file changed, 1 insertion(+), 2 deletions(-)
diff --git a/arch/arm/kernel/perf_callchain.c b/arch/arm/kernel/perf_callchain.c index 7147edbe56c67..1d230ac9d0eb5 100644 --- a/arch/arm/kernel/perf_callchain.c +++ b/arch/arm/kernel/perf_callchain.c @@ -85,8 +85,7 @@ static bool callchain_trace(void *data, unsigned long pc) { struct perf_callchain_entry_ctx *entry = data; - perf_callchain_store(entry, pc); - return true; + return perf_callchain_store(entry, pc) == 0; }
void