diff options
Diffstat (limited to 'drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_debugfs.c')
| -rw-r--r-- | drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_debugfs.c | 29 |
1 files changed, 24 insertions, 5 deletions
diff --git a/drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_debugfs.c b/drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_debugfs.c index a0b46e7d863e..233c132dc513 100644 --- a/drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_debugfs.c +++ b/drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_debugfs.c @@ -88,16 +88,35 @@ static void hclge_dbg_fill_content(char *content, u16 len, const struct hclge_dbg_item *items, const char **result, u16 size) { +#define HCLGE_DBG_LINE_END_LEN 2 char *pos = content; + u16 item_len; u16 i; + if (!len) { + return; + } else if (len <= HCLGE_DBG_LINE_END_LEN) { + *pos++ = '\0'; + return; + } + memset(content, ' ', len); + len -= HCLGE_DBG_LINE_END_LEN; + for (i = 0; i < size; i++) { - if (result) - strncpy(pos, result[i], strlen(result[i])); - else - strncpy(pos, items[i].name, strlen(items[i].name)); - pos += strlen(items[i].name) + items[i].interval; + item_len = strlen(items[i].name) + items[i].interval; + if (len < item_len) + break; + + if (result) { + if (item_len < strlen(result[i])) + break; + strscpy(pos, result[i], strlen(result[i])); + } else { + strscpy(pos, items[i].name, strlen(items[i].name)); + } + pos += item_len; + len -= item_len; } *pos++ = '\n'; *pos++ = '\0'; |