[Xen-devel] [PATCH v2 1/8] stubdom/vtpm: include stdio.h for declaration of printf

From: Olaf Hering <olaf@aepfle.de>
To: xen-devel@lists.xenproject.org
Cc: Samuel Thibault <samuel.thibault@ens-lyon.org>,
	Olaf Hering <olaf@aepfle.de>, Quan Xu <quan.xu0@gmail.com>,
	Daniel De Graaf <dgdegra@tycho.nsa.gov>
Subject: [Xen-devel] [PATCH v2 1/8] stubdom/vtpm: include stdio.h for declaration of printf
Date: Wed,  2 Oct 2019 19:05:36 +0200	[thread overview]
Message-ID: <20191002170543.26571-2-olaf@aepfle.de> (raw)
In-Reply-To: <20191002170543.26571-1-olaf@aepfle.de>

The function read_vtpmblk uses printf(3), but stdio.h is not included
in this file. This results in a warning from gcc-7:

vtpmblk.c: In function 'read_vtpmblk':
vtpmblk.c:322:7: warning: implicit declaration of function 'printf' [-Wimplicit-function-declaration]
       printf("Expected: ");
vtpmblk.c:322:7: warning: incompatible implicit declaration of built-in function 'printf'
vtpmblk.c:322:7: note: include '<stdio.h>' or provide a declaration of 'printf'

Signed-off-by: Olaf Hering <olaf@aepfle.de>
cked-by: Daniel De Graaf <dgdegra@tycho.nsa.gov>
---
 stubdom/vtpm/vtpmblk.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/stubdom/vtpm/vtpmblk.c b/stubdom/vtpm/vtpmblk.c
index fe529ab5ac..681f0c01b6 100644
--- a/stubdom/vtpm/vtpmblk.c
+++ b/stubdom/vtpm/vtpmblk.c
@@ -20,6 +20,7 @@
 #include <unistd.h>
 #include <errno.h>
 #include <fcntl.h>
+#include <stdio.h>
 
 /*Encryption key and block sizes */
 #define BLKSZ 16

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