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authorSteven Rostedt (Google) <rostedt@goodmis.org>2022-07-06 00:37:41 +0200
committerSteven Rostedt (Google) <rostedt@goodmis.org>2022-07-15 19:35:59 +0200
commit43b2aef3735e0ddb4fc4e6401cd5dc1bf205dead (patch)
tree7c0946601b3986cc811211d4358ba46169d7c38a
parenttracing/ipv4/ipv6: Use static array for name field in fib*_lookup_table event (diff)
downloadlinux-43b2aef3735e0ddb4fc4e6401cd5dc1bf205dead.tar.xz
linux-43b2aef3735e0ddb4fc4e6401cd5dc1bf205dead.zip
neighbor: tracing: Have neigh_create event use __string()
The dev field of the neigh_create event uses __dynamic_array() with a fixed size, which defeats the purpose of __dynamic_array(). Looking at the logic, as it already uses __assign_str(), just use the same logic in __string to create the size needed. It appears that because "dev" can be NULL, it needs the check. But __string() can have the same checks as __assign_str() so use them there too. Link: https://lkml.kernel.org/r/20220705183741.35387e3f@rorschach.local.home Cc: David Ahern <dsahern@gmail.com> Cc: David S. Miller <davem@davemloft.net> Cc: netdev@vger.kernel.org Acked-by: Jakub Kicinski <kuba@kernel.org> Reviewed-by: David Ahern <dsahern@kernel.org> Signed-off-by: Steven Rostedt (Google) <rostedt@goodmis.org>
-rw-r--r--include/trace/events/neigh.h2
1 files changed, 1 insertions, 1 deletions
diff --git a/include/trace/events/neigh.h b/include/trace/events/neigh.h
index 62bb17516713..5eaa1fa99171 100644
--- a/include/trace/events/neigh.h
+++ b/include/trace/events/neigh.h
@@ -30,7 +30,7 @@ TRACE_EVENT(neigh_create,
TP_STRUCT__entry(
__field(u32, family)
- __dynamic_array(char, dev, IFNAMSIZ )
+ __string(dev, dev ? dev->name : "NULL")
__field(int, entries)
__field(u8, created)
__field(u8, gc_exempt)