Messages in this thread Patch in this message | | | From | Christophe JAILLET <> | Subject | [PATCH v2] ksmbd: Remove a redundant zeroing of memory | Date | Wed, 23 Mar 2022 07:32:05 +0100 |
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fill_transform_hdr() has only one caller that already clears tr_buf (it is kzalloc'ed).
So there is no need to clear it another time here.
Remove the superfluous memset() and add a comment to remind that the caller must clear the buffer.
Signed-off-by: Christophe JAILLET <christophe.jaillet@wanadoo.fr> --- v2: keep kzalloc in the caller and remove the memset here --- fs/ksmbd/smb2pdu.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/fs/ksmbd/smb2pdu.c b/fs/ksmbd/smb2pdu.c index bcb98109bac9..bcd1bb7e2856 100644 --- a/fs/ksmbd/smb2pdu.c +++ b/fs/ksmbd/smb2pdu.c @@ -8410,7 +8410,7 @@ static void fill_transform_hdr(void *tr_buf, char *old_buf, __le16 cipher_type) struct smb2_hdr *hdr = smb2_get_msg(old_buf); unsigned int orig_len = get_rfc1002_len(old_buf); - memset(tr_buf, 0, sizeof(struct smb2_transform_hdr) + 4); + /* tr_buf must be cleared by the caller */ tr_hdr->ProtocolId = SMB2_TRANSFORM_PROTO_NUM; tr_hdr->OriginalMessageSize = cpu_to_le32(orig_len); tr_hdr->Flags = cpu_to_le16(TRANSFORM_FLAG_ENCRYPTED); -- 2.32.0
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