i40evf: fix compiler warning of unused variable

Compiler complained of an unused variable, which the driver was just
using to store the result of a rd32 which is used to clear a register
unconditionally.  Just drop the unused variable and re-use one.

Signed-off-by: Jesse Brandeburg <jesse.brandeburg@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/i40evf/i40evf_main.c b/drivers/net/ethernet/intel/i40evf/i40evf_main.c
index d962164..6ad6265 100644 (file)
--- a/drivers/net/ethernet/intel/i40evf/i40evf_main.c
+++ b/drivers/net/ethernet/intel/i40evf/i40evf_main.c
@@ -307,10 +307,9 @@ static irqreturn_t i40evf_msix_aq(int irq, void *data)
        struct i40e_hw *hw = &adapter->hw;
        u32 val;
 
-       /* handle non-queue interrupts */
-       rd32(hw, I40E_VFINT_ICR01);
-       rd32(hw, I40E_VFINT_ICR0_ENA1);
-
+       /* handle non-queue interrupts, these reads clear the registers */
+       val = rd32(hw, I40E_VFINT_ICR01);
+       val = rd32(hw, I40E_VFINT_ICR0_ENA1);
 
        val = rd32(hw, I40E_VFINT_DYN_CTL01) |
              I40E_VFINT_DYN_CTL01_CLEARPBA_MASK;