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fs/hfsplus/xattr.c: replace strncpy with memcpy

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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 <malat@debian.org>
Reviewed-by: Vyacheslav Dubeyko <slava@dubeyko.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
This commit is contained in:
Mathieu Malaterre 2019-07-16 16:29:15 -07:00 committed by Linus Torvalds
parent a9fba24c6a
commit 29774f3f4e
1 changed files with 1 additions and 1 deletions
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2
fs/hfsplus/xattr.c
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@ -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;
}