1 files changed, 44 insertions, 0 deletions

diff --git a/recipes-extended/xen/files/tools-libxc-fix-strncpy-size.patch b/recipes-extended/xen/files/tools-libxc-fix-strncpy-size.patch
new file mode 100644
index 00000000..2d606cd3
--- /dev/null
+++ b/recipes-extended/xen/files/tools-libxc-fix-strncpy-size.patch
@@ -0,0 +1,44 @@
+From fa7789ef18bd2e716997937af71b2e4b5b00a159 Mon Sep 17 00:00:00 2001
+From: =?UTF-8?q?Marek=20Marczykowski-G=C3=B3recki?=
+ <marmarek@invisiblethingslab.com>
+Date: Thu, 5 Apr 2018 03:50:49 +0200
+Subject: [PATCH] tools/libxc: fix strncpy size
+MIME-Version: 1.0
+Content-Type: text/plain; charset=UTF-8
+Content-Transfer-Encoding: 8bit
+
+gcc-8 warns about possible truncation of trailing '\0'.
+Final character is overridden by '\0' anyway, so don't bother to copy
+it.
+
+This fixes compile failure:
+
+    xc_pm.c: In function 'xc_set_cpufreq_gov':
+    xc_pm.c:308:5: error: 'strncpy' specified bound 16 equals destination size [-Werror=stringop-truncation]
+         strncpy(scaling_governor, govname, CPUFREQ_NAME_LEN);
+         ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+    cc1: all warnings being treated as errors
+
+Signed-off-by: Marek Marczykowski-Górecki <marmarek@invisiblethingslab.com>
+Acked-by: Wei Liu <wei.liu2@citrix.com>
+Release-Acked-by: Juergen Gross <jgross@suse.com>
+---
+ tools/libxc/xc_pm.c | 2 +-
+ 1 file changed, 1 insertion(+), 1 deletion(-)
+
+diff --git a/tools/libxc/xc_pm.c b/tools/libxc/xc_pm.c
+index 67e2418..6f8d548 100644
+--- a/tools/libxc/xc_pm.c
++++ b/tools/libxc/xc_pm.c
+@@ -305,7 +305,7 @@ int xc_set_cpufreq_gov(xc_interface *xch, int cpuid, char *govname)
+     sysctl.cmd = XEN_SYSCTL_pm_op;
+     sysctl.u.pm_op.cmd = SET_CPUFREQ_GOV;
+     sysctl.u.pm_op.cpuid = cpuid;
+-    strncpy(scaling_governor, govname, CPUFREQ_NAME_LEN);
++    strncpy(scaling_governor, govname, CPUFREQ_NAME_LEN - 1);
+     scaling_governor[CPUFREQ_NAME_LEN - 1] = '\0';
+ 
+     return xc_sysctl(xch, &sysctl);
+-- 
+2.7.4
+