From 09f73a08eb652b4048b8096cc8d36c52e9a32ff8 Mon Sep 17 00:00:00 2001
From: "Jason A. Donenfeld" <Jason@zx2c4.com>
Date: Tue, 5 Feb 2019 01:00:52 +0100
Subject: tools: fight compiler slightly harder

---
 src/tools/encoding.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

(limited to 'src/tools/encoding.c')

diff --git a/src/tools/encoding.c b/src/tools/encoding.c
index efe004f..bf5fd54 100644
--- a/src/tools/encoding.c
+++ b/src/tools/encoding.c
@@ -119,7 +119,7 @@ bool key_is_zero(const uint8_t key[static WG_KEY_LEN])
 
 	for (unsigned int i = 0; i < WG_KEY_LEN; ++i) {
 		acc |= key[i];
-		asm("" : "=r" (acc) : "0" (acc));
+		asm volatile("" : "=r"(acc) : "0"(acc));
 	}
 	return 1 & ((acc - 1) >> 8);
 }
-- 
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