From 003287e0f0875d0ba5f4ee3d7741ec9992766d71 Mon Sep 17 00:00:00 2001 From: Don Skidmore Date: Fri, 17 Jun 2016 17:10:13 -0400 Subject: [PATCH] ixgbevf: Correct parameter sent to LED function The second parameter of these functions is the index to the led we are interested in affecting. However we were mistakenly passing the offset in the register. This patch corrects that and adds some bonds checking which would hopefully make bugs like this more noticeable in the future. Signed-off-by: Don Skidmore Tested-by: Andrew Bowers Signed-off-by: Jeff Kirsher --- drivers/net/ethernet/intel/ixgbe/ixgbe_common.c | 12 ++++++++++++ drivers/net/ethernet/intel/ixgbe/ixgbe_ethtool.c | 4 ++-- 2 files changed, 14 insertions(+), 2 deletions(-) diff --git a/drivers/net/ethernet/intel/ixgbe/ixgbe_common.c b/drivers/net/ethernet/intel/ixgbe/ixgbe_common.c index 902d2061ce73..0ffba4458245 100644 --- a/drivers/net/ethernet/intel/ixgbe/ixgbe_common.c +++ b/drivers/net/ethernet/intel/ixgbe/ixgbe_common.c @@ -763,6 +763,9 @@ s32 ixgbe_led_on_generic(struct ixgbe_hw *hw, u32 index) { u32 led_reg = IXGBE_READ_REG(hw, IXGBE_LEDCTL); + if (index > 3) + return IXGBE_ERR_PARAM; + /* To turn on the LED, set mode to ON. */ led_reg &= ~IXGBE_LED_MODE_MASK(index); led_reg |= IXGBE_LED_ON << IXGBE_LED_MODE_SHIFT(index); @@ -781,6 +784,9 @@ s32 ixgbe_led_off_generic(struct ixgbe_hw *hw, u32 index) { u32 led_reg = IXGBE_READ_REG(hw, IXGBE_LEDCTL); + if (index > 3) + return IXGBE_ERR_PARAM; + /* To turn off the LED, set mode to OFF. */ led_reg &= ~IXGBE_LED_MODE_MASK(index); led_reg |= IXGBE_LED_OFF << IXGBE_LED_MODE_SHIFT(index); @@ -2698,6 +2704,9 @@ s32 ixgbe_blink_led_start_generic(struct ixgbe_hw *hw, u32 index) bool locked = false; s32 ret_val; + if (index > 3) + return IXGBE_ERR_PARAM; + /* * Link must be up to auto-blink the LEDs; * Force it if link is down. @@ -2741,6 +2750,9 @@ s32 ixgbe_blink_led_stop_generic(struct ixgbe_hw *hw, u32 index) bool locked = false; s32 ret_val; + if (index > 3) + return IXGBE_ERR_PARAM; + ret_val = hw->mac.ops.prot_autoc_read(hw, &locked, &autoc_reg); if (ret_val) return ret_val; diff --git a/drivers/net/ethernet/intel/ixgbe/ixgbe_ethtool.c b/drivers/net/ethernet/intel/ixgbe/ixgbe_ethtool.c index 8a8450788124..0d7209eb5abf 100644 --- a/drivers/net/ethernet/intel/ixgbe/ixgbe_ethtool.c +++ b/drivers/net/ethernet/intel/ixgbe/ixgbe_ethtool.c @@ -2204,11 +2204,11 @@ static int ixgbe_set_phys_id(struct net_device *netdev, return 2; case ETHTOOL_ID_ON: - hw->mac.ops.led_on(hw, IXGBE_LED_ON); + hw->mac.ops.led_on(hw, hw->bus.func); break; case ETHTOOL_ID_OFF: - hw->mac.ops.led_off(hw, IXGBE_LED_ON); + hw->mac.ops.led_off(hw, hw->bus.func); break; case ETHTOOL_ID_INACTIVE: