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Commit 24a768cf authored by Christopher Pau's avatar Christopher Pau Committed by Jeff Kirsher
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i40e: limit GLLAN_TXPRE_QDIS to QINDX 0-127 



Prevent writing to reserved bits, queue index is 0-127

Change-ID: Ic923e1c92012a265983414acd8f547c4bdac2e34
Signed-off-by: default avatarChristopher Pau <christopher.pau@intel.com>
Signed-off-by: default avatarJeff Kirsher <jeffrey.t.kirsher@intel.com>
parent 3efbbb20

drivers/net/ethernet/intel/i40e/i40e_common.c

+3 −1
Original line number Diff line number Diff line
@@ -669,8 +669,10 @@ void i40e_pre_tx_queue_cfg(struct i40e_hw *hw, u32 queue, bool enable) 
	u32 reg_block = 0;

	u32 reg_val;



	if (abs_queue_idx >= 128)

	if (abs_queue_idx >= 128) {

		reg_block = abs_queue_idx / 128;

		abs_queue_idx %= 128;

	}



	reg_val = rd32(hw, I40E_GLLAN_TXPRE_QDIS(reg_block));

	reg_val &= ~I40E_GLLAN_TXPRE_QDIS_QINDX_MASK;