From 63be01796a53b0d286e96780211566b5c85c4fb9 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Atte=20Peltom=C3=A4ki?= <koston@iki.fi>
Date: Fri, 14 Feb 2025 02:18:41 +0200
Subject: [PATCH] arm: Inline missing reference to __bad_cmpxchg

The ARM implementation of cmpxchg uses "__bad_cmpxchg" linker error to
report use of cmpxchg on an unsupported size. This symbol isn't
exported, so force inlining it if needed.
---
 poll_copy.c | 8 +++++++-
 1 file changed, 7 insertions(+), 1 deletion(-)

diff --git a/poll_copy.c b/poll_copy.c
index 8dbaf21..a1bcdff 100644
--- a/poll_copy.c
+++ b/poll_copy.c
@@ -45,7 +45,13 @@ static void poll_napi(struct net_device *dev, int budget)
 	}
 }
 #else
+#ifdef __arm__
+#if __LINUX_ARM_ARCH__ >= 6
+static __always_inline void __attribute__((optimize("O2", "-fno-omit-frame-pointer"))) poll_napi(struct net_device *dev, int budget)
+#endif
+#else
 static void __attribute__((optimize("O2", "-fno-omit-frame-pointer"))) poll_napi(struct net_device *dev, int budget)
+#endif
 {
     struct napi_struct *napi;
     int cpu = smp_processor_id();
@@ -92,4 +98,4 @@ void netpoll_poll_dev_copy(struct net_device *dev, void(*zap_completion_queue)(v
 
 	zap_completion_queue();
 }
-#endif
\ No newline at end of file
+#endif