From patchwork Sun Jan 27 10:39:53 2013 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: "Kirsher, Jeffrey T" X-Patchwork-Id: 215977 X-Patchwork-Delegate: davem@davemloft.net Return-Path: X-Original-To: patchwork-incoming@ozlabs.org Delivered-To: patchwork-incoming@ozlabs.org Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by ozlabs.org (Postfix) with ESMTP id A07342C008C for ; Sun, 27 Jan 2013 21:40:18 +1100 (EST) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1756575Ab3A0KkP (ORCPT ); Sun, 27 Jan 2013 05:40:15 -0500 Received: from mga11.intel.com ([192.55.52.93]:43564 "EHLO mga11.intel.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1754313Ab3A0KkK (ORCPT ); Sun, 27 Jan 2013 05:40:10 -0500 Received: from fmsmga001.fm.intel.com ([10.253.24.23]) by fmsmga102.fm.intel.com with ESMTP; 27 Jan 2013 02:40:01 -0800 X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="4.84,546,1355126400"; d="scan'208";a="278911534" Received: from unknown (HELO jtkirshe-mobl.amr.corp.intel.com) ([10.255.15.46]) by fmsmga001.fm.intel.com with ESMTP; 27 Jan 2013 02:40:01 -0800 From: Jeff Kirsher To: davem@davemloft.net Cc: Bruce Allan , netdev@vger.kernel.org, gospo@redhat.com, sassmann@redhat.com, Jeff Kirsher Subject: [net-next 14/14] e1000e: cleanup: do not assign a variable a value when not necessary Date: Sun, 27 Jan 2013 02:39:53 -0800 Message-Id: <1359283193-2043-15-git-send-email-jeffrey.t.kirsher@intel.com> X-Mailer: git-send-email 1.7.11.7 In-Reply-To: <1359283193-2043-1-git-send-email-jeffrey.t.kirsher@intel.com> References: <1359283193-2043-1-git-send-email-jeffrey.t.kirsher@intel.com> Sender: netdev-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: netdev@vger.kernel.org From: Bruce Allan Static analysis with cppcheck has shown a few instances of a variable being reassigned a value before the old one has been used. None of these ever require the old value to be used so remove the old values. Signed-off-by: Bruce Allan Tested-by: Aaron Brown Signed-off-by: Jeff Kirsher --- drivers/net/ethernet/intel/e1000e/80003es2lan.c | 8 ++++---- drivers/net/ethernet/intel/e1000e/82571.c | 6 +++--- drivers/net/ethernet/intel/e1000e/ethtool.c | 2 +- drivers/net/ethernet/intel/e1000e/ich8lan.c | 10 +++++----- drivers/net/ethernet/intel/e1000e/mac.c | 2 +- drivers/net/ethernet/intel/e1000e/netdev.c | 6 +++--- drivers/net/ethernet/intel/e1000e/phy.c | 6 +++--- 7 files changed, 20 insertions(+), 20 deletions(-) diff --git a/drivers/net/ethernet/intel/e1000e/80003es2lan.c b/drivers/net/ethernet/intel/e1000e/80003es2lan.c index aa5e4cf..ae96fac 100644 --- a/drivers/net/ethernet/intel/e1000e/80003es2lan.c +++ b/drivers/net/ethernet/intel/e1000e/80003es2lan.c @@ -695,7 +695,7 @@ static s32 e1000_phy_force_speed_duplex_80003es2lan(struct e1000_hw *hw) static s32 e1000_get_cable_length_80003es2lan(struct e1000_hw *hw) { struct e1000_phy_info *phy = &hw->phy; - s32 ret_val = 0; + s32 ret_val; u16 phy_data, index; ret_val = e1e_rphy(hw, GG82563_PHY_DSP_DISTANCE, &phy_data); @@ -1276,7 +1276,7 @@ static s32 e1000_read_kmrn_reg_80003es2lan(struct e1000_hw *hw, u32 offset, u16 *data) { u32 kmrnctrlsta; - s32 ret_val = 0; + s32 ret_val; ret_val = e1000_acquire_mac_csr_80003es2lan(hw); if (ret_val) @@ -1311,7 +1311,7 @@ static s32 e1000_write_kmrn_reg_80003es2lan(struct e1000_hw *hw, u32 offset, u16 data) { u32 kmrnctrlsta; - s32 ret_val = 0; + s32 ret_val; ret_val = e1000_acquire_mac_csr_80003es2lan(hw); if (ret_val) @@ -1335,7 +1335,7 @@ static s32 e1000_write_kmrn_reg_80003es2lan(struct e1000_hw *hw, u32 offset, **/ static s32 e1000_read_mac_addr_80003es2lan(struct e1000_hw *hw) { - s32 ret_val = 0; + s32 ret_val; /* If there's an alternate MAC address place it in RAR0 * so that it will override the Si installed default perm diff --git a/drivers/net/ethernet/intel/e1000e/82571.c b/drivers/net/ethernet/intel/e1000e/82571.c index d48143f..0f55d79 100644 --- a/drivers/net/ethernet/intel/e1000e/82571.c +++ b/drivers/net/ethernet/intel/e1000e/82571.c @@ -1397,7 +1397,7 @@ bool e1000_check_phy_82574(struct e1000_hw *hw) { u16 status_1kbt = 0; u16 receive_errors = 0; - s32 ret_val = 0; + s32 ret_val; /* Read PHY Receive Error counter first, if its is max - all F's then * read the Base1000T status register If both are max then PHY is hung. @@ -1542,7 +1542,7 @@ static s32 e1000_check_for_serdes_link_82571(struct e1000_hw *hw) ctrl = er32(CTRL); status = er32(STATUS); - rxcw = er32(RXCW); + er32(RXCW); /* SYNCH bit and IV bit are sticky */ udelay(10); rxcw = er32(RXCW); @@ -1812,7 +1812,7 @@ static s32 e1000_fix_nvm_checksum_82571(struct e1000_hw *hw) static s32 e1000_read_mac_addr_82571(struct e1000_hw *hw) { if (hw->mac.type == e1000_82571) { - s32 ret_val = 0; + s32 ret_val; /* If there's an alternate MAC address place it in RAR0 * so that it will override the Si installed default perm diff --git a/drivers/net/ethernet/intel/e1000e/ethtool.c b/drivers/net/ethernet/intel/e1000e/ethtool.c index 4262b4d..6ab949d 100644 --- a/drivers/net/ethernet/intel/e1000e/ethtool.c +++ b/drivers/net/ethernet/intel/e1000e/ethtool.c @@ -1405,7 +1405,7 @@ static int e1000_set_82571_fiber_loopback(struct e1000_adapter *adapter) { struct e1000_hw *hw = &adapter->hw; u32 ctrl = er32(CTRL); - int link = 0; + int link; /* special requirements for 82571/82572 fiber adapters */ diff --git a/drivers/net/ethernet/intel/e1000e/ich8lan.c b/drivers/net/ethernet/intel/e1000e/ich8lan.c index 13f8fa0..87676b6 100644 --- a/drivers/net/ethernet/intel/e1000e/ich8lan.c +++ b/drivers/net/ethernet/intel/e1000e/ich8lan.c @@ -485,7 +485,7 @@ out: static s32 e1000_init_phy_params_pchlan(struct e1000_hw *hw) { struct e1000_phy_info *phy = &hw->phy; - s32 ret_val = 0; + s32 ret_val; phy->addr = 1; phy->reset_delay_us = 100; @@ -783,7 +783,7 @@ static s32 e1000_init_mac_params_ich8lan(struct e1000_hw *hw) static s32 __e1000_access_emi_reg_locked(struct e1000_hw *hw, u16 address, u16 *data, bool read) { - s32 ret_val = 0; + s32 ret_val; ret_val = e1e_wphy_locked(hw, I82579_EMI_ADDR, address); if (ret_val) @@ -1387,7 +1387,7 @@ static s32 e1000_write_smbus_addr(struct e1000_hw *hw) u32 strap = er32(STRAP); u32 freq = (strap & E1000_STRAP_SMT_FREQ_MASK) >> E1000_STRAP_SMT_FREQ_SHIFT; - s32 ret_val = 0; + s32 ret_val; strap &= E1000_STRAP_SMBUS_ADDRESS_MASK; @@ -1623,7 +1623,7 @@ release: **/ s32 e1000_configure_k1_ich8lan(struct e1000_hw *hw, bool k1_enable) { - s32 ret_val = 0; + s32 ret_val; u32 ctrl_reg = 0; u32 ctrl_ext = 0; u32 reg = 0; @@ -2284,7 +2284,7 @@ static s32 e1000_phy_hw_reset_ich8lan(struct e1000_hw *hw) **/ static s32 e1000_set_lplu_state_pchlan(struct e1000_hw *hw, bool active) { - s32 ret_val = 0; + s32 ret_val; u16 oem_reg; ret_val = e1e_rphy(hw, HV_OEM_BITS, &oem_reg); diff --git a/drivers/net/ethernet/intel/e1000e/mac.c b/drivers/net/ethernet/intel/e1000e/mac.c index d21f749..0709f49 100644 --- a/drivers/net/ethernet/intel/e1000e/mac.c +++ b/drivers/net/ethernet/intel/e1000e/mac.c @@ -165,7 +165,7 @@ void e1000e_init_rx_addrs(struct e1000_hw *hw, u16 rar_count) s32 e1000_check_alt_mac_addr_generic(struct e1000_hw *hw) { u32 i; - s32 ret_val = 0; + s32 ret_val; u16 offset, nvm_alt_mac_addr_offset, nvm_data; u8 alt_mac_addr[ETH_ALEN]; diff --git a/drivers/net/ethernet/intel/e1000e/netdev.c b/drivers/net/ethernet/intel/e1000e/netdev.c index 12784e8..e386e95 100644 --- a/drivers/net/ethernet/intel/e1000e/netdev.c +++ b/drivers/net/ethernet/intel/e1000e/netdev.c @@ -3660,8 +3660,8 @@ static int e1000e_config_hwtstamp(struct e1000_adapter *adapter) e1e_flush(); /* Clear TSYNCRXCTL_VALID & TSYNCTXCTL_VALID bit */ - regval = er32(RXSTMPH); - regval = er32(TXSTMPH); + er32(RXSTMPH); + er32(TXSTMPH); /* Get and set the System Time Register SYSTIM base frequency */ ret_val = e1000e_get_base_timinca(adapter, ®val); @@ -5834,7 +5834,7 @@ static int e1000_init_phy_wakeup(struct e1000_adapter *adapter, u32 wufc) struct e1000_hw *hw = &adapter->hw; u32 i, mac_reg; u16 phy_reg, wuc_enable; - int retval = 0; + int retval; /* copy MAC RARs to PHY RARs */ e1000_copy_rx_addrs_to_phy_ich8lan(hw); diff --git a/drivers/net/ethernet/intel/e1000e/phy.c b/drivers/net/ethernet/intel/e1000e/phy.c index b4aaf69..44fb432 100644 --- a/drivers/net/ethernet/intel/e1000e/phy.c +++ b/drivers/net/ethernet/intel/e1000e/phy.c @@ -2671,7 +2671,7 @@ s32 e1000_enable_phy_wakeup_reg_access_bm(struct e1000_hw *hw, u16 *phy_reg) **/ s32 e1000_disable_phy_wakeup_reg_access_bm(struct e1000_hw *hw, u16 *phy_reg) { - s32 ret_val = 0; + s32 ret_val; /* Select Port Control Registers page */ ret_val = e1000_set_page_igp(hw, (BM_PORT_CTRL_PAGE << IGP_PAGE_SHIFT)); @@ -3103,8 +3103,8 @@ static s32 e1000_access_phy_debug_regs_hv(struct e1000_hw *hw, u32 offset, u16 *data, bool read) { s32 ret_val; - u32 addr_reg = 0; - u32 data_reg = 0; + u32 addr_reg; + u32 data_reg; /* This takes care of the difference with desktop vs mobile phy */ addr_reg = (hw->phy.type == e1000_phy_82578) ?