From: Mathieu Malaterre Date: Tue, 16 Jul 2019 23:29:15 +0000 (-0700) Subject: fs/hfsplus/xattr.c: replace strncpy with memcpy X-Git-Url: http://git.cdn.openwrt.org/?a=commitdiff_plain;h=29774f3f4e5af8f01dc5410e807b32ac6b765106;p=openwrt%2Fstaging%2Fblogic.git fs/hfsplus/xattr.c: replace strncpy with memcpy strncpy() was used to copy a fixed size buffer. Since NUL-terminating string is not required here, prefer a memcpy function. The generated code (ppc32) remains the same. Silence the following warning triggered using W=1: fs/hfsplus/xattr.c:410:3: warning: 'strncpy' output truncated before terminating nul copying 4 bytes from a string of the same length [-Wstringop-truncation] Link: http://lkml.kernel.org/r/20190529113341.11972-1-malat@debian.org Signed-off-by: Mathieu Malaterre Reviewed-by: Vyacheslav Dubeyko Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- diff --git a/fs/hfsplus/xattr.c b/fs/hfsplus/xattr.c index d5403b4004c9..bb0b27d88e50 100644 --- a/fs/hfsplus/xattr.c +++ b/fs/hfsplus/xattr.c @@ -407,7 +407,7 @@ static int copy_name(char *buffer, const char *xattr_name, int name_len) int offset = 0; if (!is_known_namespace(xattr_name)) { - strncpy(buffer, XATTR_MAC_OSX_PREFIX, XATTR_MAC_OSX_PREFIX_LEN); + memcpy(buffer, XATTR_MAC_OSX_PREFIX, XATTR_MAC_OSX_PREFIX_LEN); offset += XATTR_MAC_OSX_PREFIX_LEN; len += XATTR_MAC_OSX_PREFIX_LEN; }