Re: [PATCH v3 6/8] socket: Add SO_TIMESTAMP[NS]_NEW
From: Willem de Bruijn <willemdebruijn.kernel@gmail.com>
Date: 2019-01-08 13:46:54
Also in:
linux-alpha, linux-rdma, lkml, sparclinux
On Mon, Jan 7, 2019 at 10:29 PM Deepa Dinamani [off-list ref] wrote:
Add SO_TIMESTAMP_NEW and SO_TIMESTAMPNS_NEW variants of socket timestamp options. These are the y2038 safe versions of the SO_TIMESTAMP_OLD and SO_TIMESTAMPNS_OLD for all architectures. Note that the format of scm_timestamping.ts[0] is not changed in this patch. Signed-off-by: Deepa Dinamani <redacted> Cc: jejb@parisc-linux.org Cc: ralf@linux-mips.org Cc: rth@twiddle.net Cc: linux-alpha@vger.kernel.org Cc: linux-mips@linux-mips.org Cc: linux-parisc@vger.kernel.org Cc: linux-rdma@vger.kernel.org Cc: netdev@vger.kernel.org Cc: sparclinux@vger.kernel.org
quoted hunk ↗ jump to hunk
diff --git a/arch/alpha/include/uapi/asm/socket.h b/arch/alpha/include/uapi/asm/socket.h index 00e45c80e574..352e3dc0b3d9 100644 --- a/arch/alpha/include/uapi/asm/socket.h +++ b/arch/alpha/include/uapi/asm/socket.h@@ -3,6 +3,7 @@ #define _UAPI_ASM_SOCKET_H #include <asm/sockios.h> +#include <asm/bitsperlong.h> /* For setsockopt(2) */ /*@@ -110,12 +111,22 @@ #define SO_TIMESTAMP_OLD 29 #define SO_TIMESTAMPNS_OLD 35 +
nit: unnecessary whitespace line
quoted hunk ↗ jump to hunk
@@ -1864,20 +1864,39 @@ static void tcp_update_recv_tstamps(struct sk_buff *skb, static void tcp_recv_timestamp(struct msghdr *msg, const struct sock *sk, struct scm_timestamping *tss) { - struct __kernel_old_timeval tv; bool has_timestamping = false; + int new_tstamp = sock_flag(sk, SOCK_TSTAMP_NEW); if (tss->ts[0].tv_sec || tss->ts[0].tv_nsec) { if (sock_flag(sk, SOCK_RCVTSTAMP)) { if (sock_flag(sk, SOCK_RCVTSTAMPNS)) { - put_cmsg(msg, SOL_SOCKET, SO_TIMESTAMPNS_OLD, - sizeof(tss->ts[0]), &tss->ts[0]); - } else { - tv.tv_sec = tss->ts[0].tv_sec; - tv.tv_usec = tss->ts[0].tv_nsec / 1000; + if (new_tstamp) { + struct __kernel_timespec kts = {tss->ts[0].tv_sec, tss->ts[0].tv_nsec}; + + put_cmsg(msg, SOL_SOCKET, SO_TIMESTAMPNS_NEW, + sizeof(kts), &kts); + } else { + struct timespec ts_old = tss->ts[0];
nit: intermediate variable not needed as tss->ts[0] is also of type struct timespec.