tools/power turbostat: Fix gcc build warnings

[ Upstream commit d8d005ba6afa502ca37ced5782f672c4d2fc1515 ]

Warning: ‘__builtin_strncpy’ specified bound 20 equals destination size
	[-Wstringop-truncation]

reduce param to strncpy, to guarantee that a null byte is always copied
into destination buffer.

Signed-off-by: Len Brown <len.brown@intel.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>

diff --git a/tools/power/x86/turbostat/turbostat.c b/tools/power/x86/turbostat/turbostat.c
index 5d0fddd..78507cd 100644 (file)
--- a/tools/power/x86/turbostat/turbostat.c
+++ b/tools/power/x86/turbostat/turbostat.c
@@ -5323,9 +5323,9 @@ int add_counter(unsigned int msr_num, char *path, char *name,
        }
 
        msrp->msr_num = msr_num;
-       strncpy(msrp->name, name, NAME_BYTES);
+       strncpy(msrp->name, name, NAME_BYTES - 1);
        if (path)
-               strncpy(msrp->path, path, PATH_BYTES);
+               strncpy(msrp->path, path, PATH_BYTES - 1);
        msrp->width = width;
        msrp->type = type;
        msrp->format = format;