This patch changes the code style to make the code more simple.
also removes the once used HNADEL_TX_MSG macro, according to the
review comments from Joe Perches.

Signed-off-by: huangdaode <huangda...@hisilicon.com>
Reviewed-by: Joe Perches <j...@perches.com>
---
 drivers/net/ethernet/hisilicon/hns/hnae.c | 45 +++++++++++++++----------------
 1 file changed, 22 insertions(+), 23 deletions(-)

diff --git a/drivers/net/ethernet/hisilicon/hns/hnae.c 
b/drivers/net/ethernet/hisilicon/hns/hnae.c
index f52e99a..40f5779 100644
--- a/drivers/net/ethernet/hisilicon/hns/hnae.c
+++ b/drivers/net/ethernet/hisilicon/hns/hnae.c
@@ -439,40 +439,39 @@ EXPORT_SYMBOL(hnae_ae_unregister);
 static ssize_t handles_show(struct device *dev,
                            struct device_attribute *attr, char *buf)
 {
-       ssize_t s = 0;
+       char *s = buf;
        struct hnae_ae_dev *hdev = cls_to_ae_dev(dev);
        struct hnae_handle *h;
        int i = 0, j;
 
        list_for_each_entry_rcu(h, &hdev->handle_list, node) {
-               s += sprintf(buf + s, "handle %d (eport_id=%u from %s):\n",
+               s += sprintf(s, "handle %d (eport_id=%u from %s):\n",
                            i++, h->eport_id, h->dev->name);
                for (j = 0; j < h->q_num; j++) {
-                       s += sprintf(buf + s, "\tqueue[%d] on %p\n",
+                       s += sprintf(s, "\tqueue[%d] on %p\n",
                                     j, h->qs[i]->io_base);
-#define HANDEL_TX_MSG "\t\ttx_ring on %p:%u,%u,%u,%u,%u,%llu,%llu\n"
-                       s += sprintf(buf + s,
-                                    HANDEL_TX_MSG,
-                                    h->qs[i]->tx_ring.io_base,
-                                    h->qs[i]->tx_ring.buf_size,
-                                    h->qs[i]->tx_ring.desc_num,
-                                    h->qs[i]->tx_ring.max_desc_num_per_pkt,
-                                    h->qs[i]->tx_ring.max_raw_data_sz_per_desc,
-                                    h->qs[i]->tx_ring.max_pkt_size,
-                                h->qs[i]->tx_ring.stats.sw_err_cnt,
-                                h->qs[i]->tx_ring.stats.io_err_cnt);
-                       s += sprintf(buf + s,
-                               "\t\trx_ring on %p:%u,%u,%llu,%llu,%llu\n",
-                               h->qs[i]->rx_ring.io_base,
-                               h->qs[i]->rx_ring.buf_size,
-                               h->qs[i]->rx_ring.desc_num,
-                               h->qs[i]->rx_ring.stats.sw_err_cnt,
-                               h->qs[i]->rx_ring.stats.io_err_cnt,
-                               h->qs[i]->rx_ring.stats.seg_pkt_cnt);
+                       s += sprintf(s,
+                                   "\t\ttx_ring on 
%p:%u,%u,%u,%u,%u,%llu,%llu\n",
+                                   h->qs[i]->tx_ring.io_base,
+                                   h->qs[i]->tx_ring.buf_size,
+                                   h->qs[i]->tx_ring.desc_num,
+                                   h->qs[i]->tx_ring.max_desc_num_per_pkt,
+                                   h->qs[i]->tx_ring.max_raw_data_sz_per_desc,
+                                   h->qs[i]->tx_ring.max_pkt_size,
+                                   h->qs[i]->tx_ring.stats.sw_err_cnt,
+                                   h->qs[i]->tx_ring.stats.io_err_cnt);
+                       s += sprintf(s,
+                                   "\t\trx_ring on %p:%u,%u,%llu,%llu,%llu\n",
+                                   h->qs[i]->rx_ring.io_base,
+                                   h->qs[i]->rx_ring.buf_size,
+                                   h->qs[i]->rx_ring.desc_num,
+                                   h->qs[i]->rx_ring.stats.sw_err_cnt,
+                                   h->qs[i]->rx_ring.stats.io_err_cnt,
+                                   h->qs[i]->rx_ring.stats.seg_pkt_cnt);
                }
        }
 
-       return s;
+       return s - buf;
 }
 
 static DEVICE_ATTR_RO(handles);
-- 
1.9.1

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