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Message-Id: <20190225184306.13505-5-jeffrey.t.kirsher@intel.com>
Date: Mon, 25 Feb 2019 10:42:54 -0800
From: Jeff Kirsher <jeffrey.t.kirsher@...el.com>
To: davem@...emloft.net
Cc: Bruce Allan <bruce.w.allan@...el.com>, netdev@...r.kernel.org,
nhorman@...hat.com, sassmann@...hat.com,
Anirudh Venkataramanan <anirudh.venkataramanan@...el.com>,
Andrew Bowers <andrewx.bowers@...el.com>,
Jeff Kirsher <jeffrey.t.kirsher@...el.com>
Subject: [net-next 04/16] ice: sizeof(<type>) should be avoided
From: Bruce Allan <bruce.w.allan@...el.com>
With sizeof(), it is preferable to use the variable of type <type> instead
of sizeof(<type>).
There are multiple places where a temporary variable is used to hold a
'size' value which is then used for a subsequent alloc/memset. Get rid
of the temporary variable by calculating size as part of the alloc/memset
statement.
Also remove unnecessary type-cast.
Signed-off-by: Bruce Allan <bruce.w.allan@...el.com>
Signed-off-by: Anirudh Venkataramanan <anirudh.venkataramanan@...el.com>
Tested-by: Andrew Bowers <andrewx.bowers@...el.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@...el.com>
---
drivers/net/ethernet/intel/ice/ice_ethtool.c | 15 ++++++------
drivers/net/ethernet/intel/ice/ice_lib.c | 10 ++++----
drivers/net/ethernet/intel/ice/ice_main.c | 23 +++++++++----------
drivers/net/ethernet/intel/ice/ice_sched.c | 9 ++++----
drivers/net/ethernet/intel/ice/ice_switch.c | 2 +-
drivers/net/ethernet/intel/ice/ice_txrx.c | 24 ++++++++------------
6 files changed, 38 insertions(+), 45 deletions(-)
diff --git a/drivers/net/ethernet/intel/ice/ice_ethtool.c b/drivers/net/ethernet/intel/ice/ice_ethtool.c
index a82f0202652d..a93daf660171 100644
--- a/drivers/net/ethernet/intel/ice/ice_ethtool.c
+++ b/drivers/net/ethernet/intel/ice/ice_ethtool.c
@@ -1084,7 +1084,7 @@ ice_get_settings_link_up(struct ethtool_link_ksettings *ks,
* current PHY type, get what is supported by the NVM and intersect
* them to get what is truly supported
*/
- memset(&cap_ksettings, 0, sizeof(struct ethtool_link_ksettings));
+ memset(&cap_ksettings, 0, sizeof(cap_ksettings));
ice_phy_type_to_ethtool(netdev, &cap_ksettings);
ethtool_intersect_link_masks(ks, &cap_ksettings);
@@ -1416,7 +1416,7 @@ ice_set_link_ksettings(struct net_device *netdev,
return -EOPNOTSUPP;
/* copy the ksettings to copy_ks to avoid modifying the original */
- memcpy(©_ks, ks, sizeof(struct ethtool_link_ksettings));
+ memcpy(©_ks, ks, sizeof(copy_ks));
/* save autoneg out of ksettings */
autoneg = copy_ks.base.autoneg;
@@ -1435,7 +1435,7 @@ ice_set_link_ksettings(struct net_device *netdev,
return -EINVAL;
/* get our own copy of the bits to check against */
- memset(&safe_ks, 0, sizeof(struct ethtool_link_ksettings));
+ memset(&safe_ks, 0, sizeof(safe_ks));
safe_ks.base.cmd = copy_ks.base.cmd;
safe_ks.base.link_mode_masks_nwords =
copy_ks.base.link_mode_masks_nwords;
@@ -1449,8 +1449,7 @@ ice_set_link_ksettings(struct net_device *netdev,
/* If copy_ks.base and safe_ks.base are not the same now, then they are
* trying to set something that we do not support.
*/
- if (memcmp(©_ks.base, &safe_ks.base,
- sizeof(struct ethtool_link_settings)))
+ if (memcmp(©_ks.base, &safe_ks.base, sizeof(copy_ks.base)))
return -EOPNOTSUPP;
while (test_and_set_bit(__ICE_CFG_BUSY, pf->state)) {
@@ -1474,7 +1473,7 @@ ice_set_link_ksettings(struct net_device *netdev,
}
/* Copy abilities to config in case autoneg is not set below */
- memset(&config, 0, sizeof(struct ice_aqc_set_phy_cfg_data));
+ memset(&config, 0, sizeof(config));
config.caps = abilities->caps & ~ICE_AQC_PHY_AN_MODE;
if (abilities->caps & ICE_AQC_PHY_AN_MODE)
config.caps |= ICE_AQ_PHY_ENA_AUTO_LINK_UPDT;
@@ -1668,7 +1667,7 @@ ice_set_ringparam(struct net_device *netdev, struct ethtool_ringparam *ring)
vsi->tx_rings[0]->count, new_tx_cnt);
tx_rings = devm_kcalloc(&pf->pdev->dev, vsi->alloc_txq,
- sizeof(struct ice_ring), GFP_KERNEL);
+ sizeof(*tx_rings), GFP_KERNEL);
if (!tx_rings) {
err = -ENOMEM;
goto done;
@@ -1700,7 +1699,7 @@ ice_set_ringparam(struct net_device *netdev, struct ethtool_ringparam *ring)
vsi->rx_rings[0]->count, new_rx_cnt);
rx_rings = devm_kcalloc(&pf->pdev->dev, vsi->alloc_rxq,
- sizeof(struct ice_ring), GFP_KERNEL);
+ sizeof(*rx_rings), GFP_KERNEL);
if (!rx_rings) {
err = -ENOMEM;
goto done;
diff --git a/drivers/net/ethernet/intel/ice/ice_lib.c b/drivers/net/ethernet/intel/ice/ice_lib.c
index 27c3760ae5cb..82aae530d6c5 100644
--- a/drivers/net/ethernet/intel/ice/ice_lib.c
+++ b/drivers/net/ethernet/intel/ice/ice_lib.c
@@ -249,12 +249,12 @@ static int ice_vsi_alloc_arrays(struct ice_vsi *vsi, bool alloc_qvectors)
/* allocate memory for both Tx and Rx ring pointers */
vsi->tx_rings = devm_kcalloc(&pf->pdev->dev, vsi->alloc_txq,
- sizeof(struct ice_ring *), GFP_KERNEL);
+ sizeof(*vsi->tx_rings), GFP_KERNEL);
if (!vsi->tx_rings)
goto err_txrings;
vsi->rx_rings = devm_kcalloc(&pf->pdev->dev, vsi->alloc_rxq,
- sizeof(struct ice_ring *), GFP_KERNEL);
+ sizeof(*vsi->rx_rings), GFP_KERNEL);
if (!vsi->rx_rings)
goto err_rxrings;
@@ -262,7 +262,7 @@ static int ice_vsi_alloc_arrays(struct ice_vsi *vsi, bool alloc_qvectors)
/* allocate memory for q_vector pointers */
vsi->q_vectors = devm_kcalloc(&pf->pdev->dev,
vsi->num_q_vectors,
- sizeof(struct ice_q_vector *),
+ sizeof(*vsi->q_vectors),
GFP_KERNEL);
if (!vsi->q_vectors)
goto err_vectors;
@@ -355,7 +355,7 @@ void ice_vsi_delete(struct ice_vsi *vsi)
ctxt.vf_num = vsi->vf_id;
ctxt.vsi_num = vsi->vsi_num;
- memcpy(&ctxt.info, &vsi->info, sizeof(struct ice_aqc_vsi_props));
+ memcpy(&ctxt.info, &vsi->info, sizeof(ctxt.info));
status = ice_free_vsi(&pf->hw, vsi->idx, &ctxt, false, NULL);
if (status)
@@ -1620,7 +1620,7 @@ ice_vsi_cfg_txqs(struct ice_vsi *vsi, struct ice_ring **rings, int offset)
u16 buf_len, i, pf_q;
int err = 0, tc;
- buf_len = sizeof(struct ice_aqc_add_tx_qgrp);
+ buf_len = sizeof(*qg_buf);
qg_buf = devm_kzalloc(&pf->pdev->dev, buf_len, GFP_KERNEL);
if (!qg_buf)
return -ENOMEM;
diff --git a/drivers/net/ethernet/intel/ice/ice_main.c b/drivers/net/ethernet/intel/ice/ice_main.c
index 9d266d754445..0731b8994958 100644
--- a/drivers/net/ethernet/intel/ice/ice_main.c
+++ b/drivers/net/ethernet/intel/ice/ice_main.c
@@ -1513,8 +1513,8 @@ static int ice_cfg_netdev(struct ice_vsi *vsi)
u8 mac_addr[ETH_ALEN];
int err;
- netdev = alloc_etherdev_mqs(sizeof(struct ice_netdev_priv),
- vsi->alloc_txq, vsi->alloc_rxq);
+ netdev = alloc_etherdev_mqs(sizeof(*np), vsi->alloc_txq,
+ vsi->alloc_rxq);
if (!netdev)
return -ENOMEM;
@@ -1867,7 +1867,7 @@ static int ice_ena_msix_range(struct ice_pf *pf)
v_left -= pf->num_lan_msix;
pf->msix_entries = devm_kcalloc(&pf->pdev->dev, v_budget,
- sizeof(struct msix_entry), GFP_KERNEL);
+ sizeof(*pf->msix_entries), GFP_KERNEL);
if (!pf->msix_entries) {
err = -ENOMEM;
@@ -1955,7 +1955,6 @@ static void ice_clear_interrupt_scheme(struct ice_pf *pf)
static int ice_init_interrupt_scheme(struct ice_pf *pf)
{
int vectors = 0, hw_vectors = 0;
- ssize_t size;
if (test_bit(ICE_FLAG_MSIX_ENA, pf->flags))
vectors = ice_ena_msix_range(pf);
@@ -1966,9 +1965,9 @@ static int ice_init_interrupt_scheme(struct ice_pf *pf)
return vectors;
/* set up vector assignment tracking */
- size = sizeof(struct ice_res_tracker) + (sizeof(u16) * vectors);
-
- pf->sw_irq_tracker = devm_kzalloc(&pf->pdev->dev, size, GFP_KERNEL);
+ pf->sw_irq_tracker =
+ devm_kzalloc(&pf->pdev->dev, sizeof(*pf->sw_irq_tracker) +
+ (sizeof(u16) * vectors), GFP_KERNEL);
if (!pf->sw_irq_tracker) {
ice_dis_msix(pf);
return -ENOMEM;
@@ -1980,9 +1979,9 @@ static int ice_init_interrupt_scheme(struct ice_pf *pf)
/* set up HW vector assignment tracking */
hw_vectors = pf->hw.func_caps.common_cap.num_msix_vectors;
- size = sizeof(struct ice_res_tracker) + (sizeof(u16) * hw_vectors);
-
- pf->hw_irq_tracker = devm_kzalloc(&pf->pdev->dev, size, GFP_KERNEL);
+ pf->hw_irq_tracker =
+ devm_kzalloc(&pf->pdev->dev, sizeof(*pf->hw_irq_tracker) +
+ (sizeof(u16) * hw_vectors), GFP_KERNEL);
if (!pf->hw_irq_tracker) {
ice_clear_interrupt_scheme(pf);
return -ENOMEM;
@@ -2116,7 +2115,7 @@ static int ice_probe(struct pci_dev *pdev,
}
pf->vsi = devm_kcalloc(&pdev->dev, pf->num_alloc_vsi,
- sizeof(struct ice_vsi *), GFP_KERNEL);
+ sizeof(*pf->vsi), GFP_KERNEL);
if (!pf->vsi) {
err = -ENOMEM;
goto err_init_pf_unroll;
@@ -2148,7 +2147,7 @@ static int ice_probe(struct pci_dev *pdev,
}
/* create switch struct for the switch element created by FW on boot */
- pf->first_sw = devm_kzalloc(&pdev->dev, sizeof(struct ice_sw),
+ pf->first_sw = devm_kzalloc(&pdev->dev, sizeof(*pf->first_sw),
GFP_KERNEL);
if (!pf->first_sw) {
err = -ENOMEM;
diff --git a/drivers/net/ethernet/intel/ice/ice_sched.c b/drivers/net/ethernet/intel/ice/ice_sched.c
index 81fb7d19c0fd..f355f59d8b64 100644
--- a/drivers/net/ethernet/intel/ice/ice_sched.c
+++ b/drivers/net/ethernet/intel/ice/ice_sched.c
@@ -1066,11 +1066,10 @@ enum ice_status ice_sched_query_res_alloc(struct ice_hw *hw)
hw->max_children[i] = le16_to_cpu(max_sibl);
}
- hw->layer_info = (struct ice_aqc_layer_props *)
- devm_kmemdup(ice_hw_to_dev(hw), buf->layer_props,
- (hw->num_tx_sched_layers *
- sizeof(*hw->layer_info)),
- GFP_KERNEL);
+ hw->layer_info = devm_kmemdup(ice_hw_to_dev(hw), buf->layer_props,
+ (hw->num_tx_sched_layers *
+ sizeof(*hw->layer_info)),
+ GFP_KERNEL);
if (!hw->layer_info) {
status = ICE_ERR_NO_MEMORY;
goto sched_query_out;
diff --git a/drivers/net/ethernet/intel/ice/ice_switch.c b/drivers/net/ethernet/intel/ice/ice_switch.c
index 2e5693107fa4..d560a8aa5015 100644
--- a/drivers/net/ethernet/intel/ice/ice_switch.c
+++ b/drivers/net/ethernet/intel/ice/ice_switch.c
@@ -98,7 +98,7 @@ enum ice_status ice_init_def_sw_recp(struct ice_hw *hw)
u8 i;
recps = devm_kcalloc(ice_hw_to_dev(hw), ICE_MAX_NUM_RECIPES,
- sizeof(struct ice_sw_recipe), GFP_KERNEL);
+ sizeof(*recps), GFP_KERNEL);
if (!recps)
return ICE_ERR_NO_MEMORY;
diff --git a/drivers/net/ethernet/intel/ice/ice_txrx.c b/drivers/net/ethernet/intel/ice/ice_txrx.c
index 2357fcac996b..67d129bfe489 100644
--- a/drivers/net/ethernet/intel/ice/ice_txrx.c
+++ b/drivers/net/ethernet/intel/ice/ice_txrx.c
@@ -48,7 +48,6 @@ static struct netdev_queue *txring_txq(const struct ice_ring *ring)
*/
void ice_clean_tx_ring(struct ice_ring *tx_ring)
{
- unsigned long size;
u16 i;
/* ring already cleared, nothing to do */
@@ -59,8 +58,7 @@ void ice_clean_tx_ring(struct ice_ring *tx_ring)
for (i = 0; i < tx_ring->count; i++)
ice_unmap_and_free_tx_buf(tx_ring, &tx_ring->tx_buf[i]);
- size = sizeof(struct ice_tx_buf) * tx_ring->count;
- memset(tx_ring->tx_buf, 0, size);
+ memset(tx_ring->tx_buf, 0, sizeof(*tx_ring->tx_buf) * tx_ring->count);
/* Zero out the descriptor ring */
memset(tx_ring->desc, 0, tx_ring->size);
@@ -226,21 +224,21 @@ static bool ice_clean_tx_irq(struct ice_vsi *vsi, struct ice_ring *tx_ring,
int ice_setup_tx_ring(struct ice_ring *tx_ring)
{
struct device *dev = tx_ring->dev;
- int bi_size;
if (!dev)
return -ENOMEM;
/* warn if we are about to overwrite the pointer */
WARN_ON(tx_ring->tx_buf);
- bi_size = sizeof(struct ice_tx_buf) * tx_ring->count;
- tx_ring->tx_buf = devm_kzalloc(dev, bi_size, GFP_KERNEL);
+ tx_ring->tx_buf =
+ devm_kzalloc(dev, sizeof(*tx_ring->tx_buf) * tx_ring->count,
+ GFP_KERNEL);
if (!tx_ring->tx_buf)
return -ENOMEM;
/* round up to nearest 4K */
- tx_ring->size = tx_ring->count * sizeof(struct ice_tx_desc);
- tx_ring->size = ALIGN(tx_ring->size, 4096);
+ tx_ring->size = ALIGN(tx_ring->count * sizeof(struct ice_tx_desc),
+ 4096);
tx_ring->desc = dmam_alloc_coherent(dev, tx_ring->size, &tx_ring->dma,
GFP_KERNEL);
if (!tx_ring->desc) {
@@ -267,7 +265,6 @@ int ice_setup_tx_ring(struct ice_ring *tx_ring)
void ice_clean_rx_ring(struct ice_ring *rx_ring)
{
struct device *dev = rx_ring->dev;
- unsigned long size;
u16 i;
/* ring already cleared, nothing to do */
@@ -292,8 +289,7 @@ void ice_clean_rx_ring(struct ice_ring *rx_ring)
rx_buf->page_offset = 0;
}
- size = sizeof(struct ice_rx_buf) * rx_ring->count;
- memset(rx_ring->rx_buf, 0, size);
+ memset(rx_ring->rx_buf, 0, sizeof(*rx_ring->rx_buf) * rx_ring->count);
/* Zero out the descriptor ring */
memset(rx_ring->desc, 0, rx_ring->size);
@@ -331,15 +327,15 @@ void ice_free_rx_ring(struct ice_ring *rx_ring)
int ice_setup_rx_ring(struct ice_ring *rx_ring)
{
struct device *dev = rx_ring->dev;
- int bi_size;
if (!dev)
return -ENOMEM;
/* warn if we are about to overwrite the pointer */
WARN_ON(rx_ring->rx_buf);
- bi_size = sizeof(struct ice_rx_buf) * rx_ring->count;
- rx_ring->rx_buf = devm_kzalloc(dev, bi_size, GFP_KERNEL);
+ rx_ring->rx_buf =
+ devm_kzalloc(dev, sizeof(*rx_ring->rx_buf) * rx_ring->count,
+ GFP_KERNEL);
if (!rx_ring->rx_buf)
return -ENOMEM;
--
2.20.1
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