2015-06-17 11:39:14

by Julien Grall

[permalink] [raw]
Subject: [PATCH v5 0/3] net/xen: Clean up

Hi,

The first 2 patches were originally part of the Xen 64KB series [1]. Although
I think they can go without waiting the rest of the 64KB series.

The third patch has been added in the v4.

Regards,

Cc: Wei Liu <[email protected]>
Cc: Ian Campbell <[email protected]>
Cc: David Vrabel <[email protected]>
Cc: Konrad Rzeszutek Wilk <[email protected]>
Cc: Boris Ostrovsky <[email protected]>
Cc: [email protected]

[1] http://lkml.org/lkml/2015/5/14/533

Julien Grall (3):
net/xen-netfront: Correct printf format in xennet_get_responses
net/xen-netback: Remove unused code in xenvif_rx_action
net/xen-netback: Don't mix hexa and decimal with 0x in the printf
format

drivers/net/xen-netback/netback.c | 19 +++++++------------
drivers/net/xen-netfront.c | 2 +-
2 files changed, 8 insertions(+), 13 deletions(-)

--
2.1.4


2015-06-17 11:39:51

by Julien Grall

[permalink] [raw]
Subject: [PATCH v5 1/3] net/xen-netfront: Correct printf format in xennet_get_responses

rx->status is an int16_t, print it using %d rather than %u in order to
have a meaningful value when the field is negative.

Also use %u rather than %x for rx->offset.

Signed-off-by: Julien Grall <[email protected]>
Reviewed-by: David Vrabel <[email protected]>
Cc: Konrad Rzeszutek Wilk <[email protected]>
Cc: Boris Ostrovsky <[email protected]>
Cc: [email protected]

---
Changes in v4:
- Use %u for the rx->offset because offset is unsigned

Changes in v3:
- Use %d for the rx->offset too.

Changes in v2:
- Add David's Reviewed-by
---
drivers/net/xen-netfront.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/net/xen-netfront.c b/drivers/net/xen-netfront.c
index e031c94..281720f 100644
--- a/drivers/net/xen-netfront.c
+++ b/drivers/net/xen-netfront.c
@@ -733,7 +733,7 @@ static int xennet_get_responses(struct netfront_queue *queue,
if (unlikely(rx->status < 0 ||
rx->offset + rx->status > PAGE_SIZE)) {
if (net_ratelimit())
- dev_warn(dev, "rx->offset: %x, size: %u\n",
+ dev_warn(dev, "rx->offset: %u, size: %d\n",
rx->offset, rx->status);
xennet_move_rx_slot(queue, skb, ref);
err = -EINVAL;
--
2.1.4

2015-06-17 11:39:39

by Julien Grall

[permalink] [raw]
Subject: [PATCH v5 2/3] net/xen-netback: Remove unused code in xenvif_rx_action

The variables old_req_cons and ring_slots_used are assigned but never
used since commit 1650d5455bd2dc6b5ee134bd6fc1a3236c266b5b "xen-netback:
always fully coalesce guest Rx packets".

Signed-off-by: Julien Grall <[email protected]>
Acked-by: Wei Liu <[email protected]>
Cc: Ian Campbell <[email protected]>
Cc: [email protected]

---
Changes in v2:
- Add Wei's Acked-by
---
drivers/net/xen-netback/netback.c | 5 -----
1 file changed, 5 deletions(-)

diff --git a/drivers/net/xen-netback/netback.c b/drivers/net/xen-netback/netback.c
index 0d25943..ba3ae30 100644
--- a/drivers/net/xen-netback/netback.c
+++ b/drivers/net/xen-netback/netback.c
@@ -515,14 +515,9 @@ static void xenvif_rx_action(struct xenvif_queue *queue)

while (xenvif_rx_ring_slots_available(queue, XEN_NETBK_RX_SLOTS_MAX)
&& (skb = xenvif_rx_dequeue(queue)) != NULL) {
- RING_IDX old_req_cons;
- RING_IDX ring_slots_used;
-
queue->last_rx_time = jiffies;

- old_req_cons = queue->rx.req_cons;
XENVIF_RX_CB(skb)->meta_slots_used = xenvif_gop_skb(skb, &npo, queue);
- ring_slots_used = queue->rx.req_cons - old_req_cons;

__skb_queue_tail(&rxq, skb);
}
--
2.1.4

2015-06-17 11:39:22

by Julien Grall

[permalink] [raw]
Subject: [PATCH v5 3/3] net/xen-netback: Don't mix hexa and decimal with 0x in the printf format

Prepend 0x to all %x in order to avoid confusion while reading when there is
other decimal value in the log.

Also replace some of the hexadecimal print to decimal to uniformize the
format with netfront.

Signed-off-by: Julien Grall <[email protected]>
Acked-by: Ian Campbell <[email protected]>
Cc: Wei Liu <[email protected]>
Cc: [email protected]

---
Changes in v5:
- Fix commit message
- Add Ian's ack.

Changes in v4:
- Patch added
---
drivers/net/xen-netback/netback.c | 14 +++++++-------
1 file changed, 7 insertions(+), 7 deletions(-)

diff --git a/drivers/net/xen-netback/netback.c b/drivers/net/xen-netback/netback.c
index ba3ae30..11bd9d8 100644
--- a/drivers/net/xen-netback/netback.c
+++ b/drivers/net/xen-netback/netback.c
@@ -748,7 +748,7 @@ static int xenvif_count_requests(struct xenvif_queue *queue,
slots++;

if (unlikely((txp->offset + txp->size) > PAGE_SIZE)) {
- netdev_err(queue->vif->dev, "Cross page boundary, txp->offset: %x, size: %u\n",
+ netdev_err(queue->vif->dev, "Cross page boundary, txp->offset: %u, size: %u\n",
txp->offset, txp->size);
xenvif_fatal_tx_err(queue->vif);
return -EINVAL;
@@ -874,7 +874,7 @@ static inline void xenvif_grant_handle_set(struct xenvif_queue *queue,
if (unlikely(queue->grant_tx_handle[pending_idx] !=
NETBACK_INVALID_HANDLE)) {
netdev_err(queue->vif->dev,
- "Trying to overwrite active handle! pending_idx: %x\n",
+ "Trying to overwrite active handle! pending_idx: 0x%x\n",
pending_idx);
BUG();
}
@@ -887,7 +887,7 @@ static inline void xenvif_grant_handle_reset(struct xenvif_queue *queue,
if (unlikely(queue->grant_tx_handle[pending_idx] ==
NETBACK_INVALID_HANDLE)) {
netdev_err(queue->vif->dev,
- "Trying to unmap invalid handle! pending_idx: %x\n",
+ "Trying to unmap invalid handle! pending_idx: 0x%x\n",
pending_idx);
BUG();
}
@@ -1243,7 +1243,7 @@ static void xenvif_tx_build_gops(struct xenvif_queue *queue,
/* No crossing a page as the payload mustn't fragment. */
if (unlikely((txreq.offset + txreq.size) > PAGE_SIZE)) {
netdev_err(queue->vif->dev,
- "txreq.offset: %x, size: %u, end: %lu\n",
+ "txreq.offset: %u, size: %u, end: %lu\n",
txreq.offset, txreq.size,
(unsigned long)(txreq.offset&~PAGE_MASK) + txreq.size);
xenvif_fatal_tx_err(queue->vif);
@@ -1593,12 +1593,12 @@ static inline void xenvif_tx_dealloc_action(struct xenvif_queue *queue)
queue->pages_to_unmap,
gop - queue->tx_unmap_ops);
if (ret) {
- netdev_err(queue->vif->dev, "Unmap fail: nr_ops %tx ret %d\n",
+ netdev_err(queue->vif->dev, "Unmap fail: nr_ops %tu ret %d\n",
gop - queue->tx_unmap_ops, ret);
for (i = 0; i < gop - queue->tx_unmap_ops; ++i) {
if (gop[i].status != GNTST_okay)
netdev_err(queue->vif->dev,
- " host_addr: %llx handle: %x status: %d\n",
+ " host_addr: 0x%llx handle: 0x%x status: %d\n",
gop[i].host_addr,
gop[i].handle,
gop[i].status);
@@ -1731,7 +1731,7 @@ void xenvif_idx_unmap(struct xenvif_queue *queue, u16 pending_idx)
&queue->mmap_pages[pending_idx], 1);
if (ret) {
netdev_err(queue->vif->dev,
- "Unmap fail: ret: %d pending_idx: %d host_addr: %llx handle: %x status: %d\n",
+ "Unmap fail: ret: %d pending_idx: %d host_addr: %llx handle: 0x%x status: %d\n",
ret,
pending_idx,
tx_unmap_op.host_addr,
--
2.1.4