i40e: reinit buffer size each time

When cleaning the ARQ, we must reinitialize the buffer size each time we
go through the loop, because i40e_clean_arq_element returns the message
length in the same field. Without this change, subsequent messages can
be truncated to the length of the previous message.

Change-Id: Ic9c32ff843faf0fc3196d21351a1c3a60c6158eb
Signed-off-by: Mitch Williams <mitch.a.williams@intel.com>
Signed-off-by: Jesse Brandeburg <jesse.brandeburg@intel.com>
Tested-by: Kavindya Deegala <kavindya.s.deegala@intel.com>
Tested-by: Sibai Li <sibai.li@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>

diff --git a/drivers/net/ethernet/intel/i40e/i40e_main.c b/drivers/net/ethernet/intel/i40e/i40e_main.c
index 94d0e45517650161943abf66bf74f554d30799ac..71942775543667fa4e8a060460c691592943be10 100644 (file)
--- a/drivers/net/ethernet/intel/i40e/i40e_main.c
+++ b/drivers/net/ethernet/intel/i40e/i40e_main.c
@@ -4493,12 +4493,12 @@ static void i40e_clean_adminq_subtask(struct i40e_pf *pf)
        if (!test_bit(__I40E_ADMINQ_EVENT_PENDING, &pf->state))
                return;
 
-       event.msg_size = I40E_MAX_AQ_BUF_SIZE;
        event.msg_buf = kzalloc(event.msg_size, GFP_KERNEL);
        if (!event.msg_buf)
                return;
 
        do {
+               event.msg_size = I40E_MAX_AQ_BUF_SIZE; /* reinit each time */
                ret = i40e_clean_arq_element(hw, &event, &pending);
                if (ret == I40E_ERR_ADMIN_QUEUE_NO_WORK) {
                        dev_info(&pf->pdev->dev, "No ARQ event found\n");