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Date: Fri, 16 May 2014 08:02:39 -0700
From: Alexei Starovoitov <alexei.starovoitov@...il.com>
To: Thomas Graf <tgraf@...g.ch>
Cc: "David S. Miller" <davem@...emloft.net>,
"netdev@...r.kernel.org" <netdev@...r.kernel.org>
Subject: Re: [PATCH net-next] pktgen: Use seq_puts() where seq_printf() is not needed
On Fri, May 16, 2014 at 3:53 AM, Thomas Graf <tgraf@...g.ch> wrote:
> Signed-off-by: Thomas Graf <tgraf@...g.ch>
> ---
> net/core/pktgen.c | 50 +++++++++++++++++++++++++-------------------------
> 1 file changed, 25 insertions(+), 25 deletions(-)
>
> diff --git a/net/core/pktgen.c b/net/core/pktgen.c
> index 8278df8..038c46f 100644
> --- a/net/core/pktgen.c
> +++ b/net/core/pktgen.c
> @@ -574,7 +574,7 @@ static int pktgen_if_show(struct seq_file *seq, void *v)
> is_zero_ether_addr(pkt_dev->src_mac) ?
> pkt_dev->odev->dev_addr : pkt_dev->src_mac);
>
> - seq_printf(seq, "dst_mac: ");
> + seq_puts(seq, "dst_mac: ");
tough luck of kernel developers... ;)
Normal printf() GCC optimizes into puts() automatically.
> seq_printf(seq, "%pM\n", pkt_dev->dst_mac);
>
> seq_printf(seq,
> @@ -589,7 +589,7 @@ static int pktgen_if_show(struct seq_file *seq, void *v)
>
> if (pkt_dev->nr_labels) {
> unsigned int i;
> - seq_printf(seq, " mpls: ");
> + seq_puts(seq, " mpls: ");
> for (i = 0; i < pkt_dev->nr_labels; i++)
> seq_printf(seq, "%08x%s", ntohl(pkt_dev->labels[i]),
> i == pkt_dev->nr_labels-1 ? "\n" : ", ");
> @@ -614,67 +614,67 @@ static int pktgen_if_show(struct seq_file *seq, void *v)
> if (pkt_dev->node >= 0)
> seq_printf(seq, " node: %d\n", pkt_dev->node);
>
> - seq_printf(seq, " Flags: ");
> + seq_puts(seq, " Flags: ");
>
> if (pkt_dev->flags & F_IPV6)
> - seq_printf(seq, "IPV6 ");
> + seq_puts(seq, "IPV6 ");
>
> if (pkt_dev->flags & F_IPSRC_RND)
> - seq_printf(seq, "IPSRC_RND ");
> + seq_puts(seq, "IPSRC_RND ");
>
> if (pkt_dev->flags & F_IPDST_RND)
> - seq_printf(seq, "IPDST_RND ");
> + seq_puts(seq, "IPDST_RND ");
>
> if (pkt_dev->flags & F_TXSIZE_RND)
> - seq_printf(seq, "TXSIZE_RND ");
> + seq_puts(seq, "TXSIZE_RND ");
>
> if (pkt_dev->flags & F_UDPSRC_RND)
> - seq_printf(seq, "UDPSRC_RND ");
> + seq_puts(seq, "UDPSRC_RND ");
>
> if (pkt_dev->flags & F_UDPDST_RND)
> - seq_printf(seq, "UDPDST_RND ");
> + seq_puts(seq, "UDPDST_RND ");
>
> if (pkt_dev->flags & F_UDPCSUM)
> - seq_printf(seq, "UDPCSUM ");
> + seq_puts(seq, "UDPCSUM ");
>
> if (pkt_dev->flags & F_MPLS_RND)
> - seq_printf(seq, "MPLS_RND ");
> + seq_puts(seq, "MPLS_RND ");
>
> if (pkt_dev->flags & F_QUEUE_MAP_RND)
> - seq_printf(seq, "QUEUE_MAP_RND ");
> + seq_puts(seq, "QUEUE_MAP_RND ");
>
> if (pkt_dev->flags & F_QUEUE_MAP_CPU)
> - seq_printf(seq, "QUEUE_MAP_CPU ");
> + seq_puts(seq, "QUEUE_MAP_CPU ");
>
> if (pkt_dev->cflows) {
> if (pkt_dev->flags & F_FLOW_SEQ)
> - seq_printf(seq, "FLOW_SEQ "); /*in sequence flows*/
> + seq_puts(seq, "FLOW_SEQ "); /*in sequence flows*/
> else
> - seq_printf(seq, "FLOW_RND ");
> + seq_puts(seq, "FLOW_RND ");
> }
>
> #ifdef CONFIG_XFRM
> if (pkt_dev->flags & F_IPSEC_ON) {
> - seq_printf(seq, "IPSEC ");
> + seq_puts(seq, "IPSEC ");
> if (pkt_dev->spi)
> seq_printf(seq, "spi:%u", pkt_dev->spi);
> }
> #endif
>
> if (pkt_dev->flags & F_MACSRC_RND)
> - seq_printf(seq, "MACSRC_RND ");
> + seq_puts(seq, "MACSRC_RND ");
>
> if (pkt_dev->flags & F_MACDST_RND)
> - seq_printf(seq, "MACDST_RND ");
> + seq_puts(seq, "MACDST_RND ");
>
> if (pkt_dev->flags & F_VID_RND)
> - seq_printf(seq, "VID_RND ");
> + seq_puts(seq, "VID_RND ");
>
> if (pkt_dev->flags & F_SVID_RND)
> - seq_printf(seq, "SVID_RND ");
> + seq_puts(seq, "SVID_RND ");
>
> if (pkt_dev->flags & F_NODE)
> - seq_printf(seq, "NODE_ALLOC ");
> + seq_puts(seq, "NODE_ALLOC ");
>
> if (pkt_dev->flags & F_NOINIT)
> seq_puts(seq, "NOINIT ");
> @@ -720,7 +720,7 @@ static int pktgen_if_show(struct seq_file *seq, void *v)
> if (pkt_dev->result[0])
> seq_printf(seq, "Result: %s\n", pkt_dev->result);
> else
> - seq_printf(seq, "Result: Idle\n");
> + seq_puts(seq, "Result: Idle\n");
>
> return 0;
> }
> @@ -1745,14 +1745,14 @@ static int pktgen_thread_show(struct seq_file *seq, void *v)
>
> BUG_ON(!t);
>
> - seq_printf(seq, "Running: ");
> + seq_puts(seq, "Running: ");
>
> if_lock(t);
> list_for_each_entry(pkt_dev, &t->if_list, list)
> if (pkt_dev->running)
> seq_printf(seq, "%s ", pkt_dev->odevname);
>
> - seq_printf(seq, "\nStopped: ");
> + seq_puts(seq, "\nStopped: ");
>
> list_for_each_entry(pkt_dev, &t->if_list, list)
> if (!pkt_dev->running)
> @@ -1761,7 +1761,7 @@ static int pktgen_thread_show(struct seq_file *seq, void *v)
> if (t->result[0])
> seq_printf(seq, "\nResult: %s\n", t->result);
> else
> - seq_printf(seq, "\nResult: NA\n");
> + seq_puts(seq, "\nResult: NA\n");
>
> if_unlock(t);
>
> --
> 1.8.3.1
>
> --
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