i40e: Fix uninitialized variable

We have an uninitialized variable warning for valid_len for one case in
validate_vf_mesg. To fix this, just initialize it to 0 at the top of the
function and remove all of the now redundant assignments to 0 in the
individual cases.

Change-Id: Iacbd97f4c521ed8d662eef803a598d8707708cfd
Signed-off-by: Catherine Sullivan <catherine.sullivan@intel.com>
Tested-by: Andrew Bowers <andrewx.bowers@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>

diff --git a/drivers/net/ethernet/intel/i40e/i40e_virtchnl_pf.c b/drivers/net/ethernet/intel/i40e/i40e_virtchnl_pf.c
index a8a65e0..a534fe6 100644 (file)
--- a/drivers/net/ethernet/intel/i40e/i40e_virtchnl_pf.c
+++ b/drivers/net/ethernet/intel/i40e/i40e_virtchnl_pf.c
@@ -2356,7 +2356,7 @@ static int i40e_vc_validate_vf_msg(struct i40e_vf *vf, u32 v_opcode,
                                   u32 v_retval, u8 *msg, u16 msglen)
 {
        bool err_msg_format = false;
-       int valid_len;
+       int valid_len = 0;
 
        /* Check if VF is disabled. */
        if (test_bit(I40E_VF_STAT_DISABLED, &vf->vf_states))
@@ -2368,13 +2368,10 @@ static int i40e_vc_validate_vf_msg(struct i40e_vf *vf, u32 v_opcode,
                valid_len = sizeof(struct i40e_virtchnl_version_info);
                break;
        case I40E_VIRTCHNL_OP_RESET_VF:
-               valid_len = 0;
                break;
        case I40E_VIRTCHNL_OP_GET_VF_RESOURCES:
                if (VF_IS_V11(vf))
                        valid_len = sizeof(u32);
-               else
-                       valid_len = 0;
                break;
        case I40E_VIRTCHNL_OP_CONFIG_TX_QUEUE:
                valid_len = sizeof(struct i40e_virtchnl_txq_info);
@@ -2489,7 +2486,6 @@ static int i40e_vc_validate_vf_msg(struct i40e_vf *vf, u32 v_opcode,
                }
                break;
        case I40E_VIRTCHNL_OP_GET_RSS_HENA_CAPS:
-               valid_len = 0;
                break;
        case I40E_VIRTCHNL_OP_SET_RSS_HENA:
                valid_len = sizeof(struct i40e_virtchnl_rss_hena);