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authorKees Cook <keescook@chromium.org>2018-06-12 14:03:40 -0700
committerKees Cook <keescook@chromium.org>2018-06-12 16:19:22 -0700
commit6396bb221514d2876fd6dc0aa2a1f240d99b37bb (patch)
treec5c501e859b93de096b1f01160135612ed765059 /drivers/net/ethernet/mellanox
parent6da2ec56059c3c7a7e5f729e6349e74ace1e5c57 (diff)
download96b-common-6396bb221514d2876fd6dc0aa2a1f240d99b37bb.tar.gz
treewide: kzalloc() -> kcalloc()
The kzalloc() function has a 2-factor argument form, kcalloc(). This patch replaces cases of: kzalloc(a * b, gfp) with: kcalloc(a * b, gfp) as well as handling cases of: kzalloc(a * b * c, gfp) with: kzalloc(array3_size(a, b, c), gfp) as it's slightly less ugly than: kzalloc_array(array_size(a, b), c, gfp) This does, however, attempt to ignore constant size factors like: kzalloc(4 * 1024, gfp) though any constants defined via macros get caught up in the conversion. Any factors with a sizeof() of "unsigned char", "char", and "u8" were dropped, since they're redundant. The Coccinelle script used for this was: // Fix redundant parens around sizeof(). @@ type TYPE; expression THING, E; @@ ( kzalloc( - (sizeof(TYPE)) * E + sizeof(TYPE) * E , ...) | kzalloc( - (sizeof(THING)) * E + sizeof(THING) * E , ...) ) // Drop single-byte sizes and redundant parens. @@ expression COUNT; typedef u8; typedef __u8; @@ ( kzalloc( - sizeof(u8) * (COUNT) + COUNT , ...) | kzalloc( - sizeof(__u8) * (COUNT) + COUNT , ...) | kzalloc( - sizeof(char) * (COUNT) + COUNT , ...) | kzalloc( - sizeof(unsigned char) * (COUNT) + COUNT , ...) | kzalloc( - sizeof(u8) * COUNT + COUNT , ...) | kzalloc( - sizeof(__u8) * COUNT + COUNT , ...) | kzalloc( - sizeof(char) * COUNT + COUNT , ...) | kzalloc( - sizeof(unsigned char) * COUNT + COUNT , ...) ) // 2-factor product with sizeof(type/expression) and identifier or constant. @@ type TYPE; expression THING; identifier COUNT_ID; constant COUNT_CONST; @@ ( - kzalloc + kcalloc ( - sizeof(TYPE) * (COUNT_ID) + COUNT_ID, sizeof(TYPE) , ...) | - kzalloc + kcalloc ( - sizeof(TYPE) * COUNT_ID + COUNT_ID, sizeof(TYPE) , ...) | - kzalloc + kcalloc ( - sizeof(TYPE) * (COUNT_CONST) + COUNT_CONST, sizeof(TYPE) , ...) | - kzalloc + kcalloc ( - sizeof(TYPE) * COUNT_CONST + COUNT_CONST, sizeof(TYPE) , ...) | - kzalloc + kcalloc ( - sizeof(THING) * (COUNT_ID) + COUNT_ID, sizeof(THING) , ...) | - kzalloc + kcalloc ( - sizeof(THING) * COUNT_ID + COUNT_ID, sizeof(THING) , ...) | - kzalloc + kcalloc ( - sizeof(THING) * (COUNT_CONST) + COUNT_CONST, sizeof(THING) , ...) | - kzalloc + kcalloc ( - sizeof(THING) * COUNT_CONST + COUNT_CONST, sizeof(THING) , ...) ) // 2-factor product, only identifiers. @@ identifier SIZE, COUNT; @@ - kzalloc + kcalloc ( - SIZE * COUNT + COUNT, SIZE , ...) // 3-factor product with 1 sizeof(type) or sizeof(expression), with // redundant parens removed. @@ expression THING; identifier STRIDE, COUNT; type TYPE; @@ ( kzalloc( - sizeof(TYPE) * (COUNT) * (STRIDE) + array3_size(COUNT, STRIDE, sizeof(TYPE)) , ...) | kzalloc( - sizeof(TYPE) * (COUNT) * STRIDE + array3_size(COUNT, STRIDE, sizeof(TYPE)) , ...) | kzalloc( - sizeof(TYPE) * COUNT * (STRIDE) + array3_size(COUNT, STRIDE, sizeof(TYPE)) , ...) | kzalloc( - sizeof(TYPE) * COUNT * STRIDE + array3_size(COUNT, STRIDE, sizeof(TYPE)) , ...) | kzalloc( - sizeof(THING) * (COUNT) * (STRIDE) + array3_size(COUNT, STRIDE, sizeof(THING)) , ...) | kzalloc( - sizeof(THING) * (COUNT) * STRIDE + array3_size(COUNT, STRIDE, sizeof(THING)) , ...) | kzalloc( - sizeof(THING) * COUNT * (STRIDE) + array3_size(COUNT, STRIDE, sizeof(THING)) , ...) | kzalloc( - sizeof(THING) * COUNT * STRIDE + array3_size(COUNT, STRIDE, sizeof(THING)) , ...) ) // 3-factor product with 2 sizeof(variable), with redundant parens removed. @@ expression THING1, THING2; identifier COUNT; type TYPE1, TYPE2; @@ ( kzalloc( - sizeof(TYPE1) * sizeof(TYPE2) * COUNT + array3_size(COUNT, sizeof(TYPE1), sizeof(TYPE2)) , ...) | kzalloc( - sizeof(TYPE1) * sizeof(THING2) * (COUNT) + array3_size(COUNT, sizeof(TYPE1), sizeof(TYPE2)) , ...) | kzalloc( - sizeof(THING1) * sizeof(THING2) * COUNT + array3_size(COUNT, sizeof(THING1), sizeof(THING2)) , ...) | kzalloc( - sizeof(THING1) * sizeof(THING2) * (COUNT) + array3_size(COUNT, sizeof(THING1), sizeof(THING2)) , ...) | kzalloc( - sizeof(TYPE1) * sizeof(THING2) * COUNT + array3_size(COUNT, sizeof(TYPE1), sizeof(THING2)) , ...) | kzalloc( - sizeof(TYPE1) * sizeof(THING2) * (COUNT) + array3_size(COUNT, sizeof(TYPE1), sizeof(THING2)) , ...) ) // 3-factor product, only identifiers, with redundant parens removed. @@ identifier STRIDE, SIZE, COUNT; @@ ( kzalloc( - (COUNT) * STRIDE * SIZE + array3_size(COUNT, STRIDE, SIZE) , ...) | kzalloc( - COUNT * (STRIDE) * SIZE + array3_size(COUNT, STRIDE, SIZE) , ...) | kzalloc( - COUNT * STRIDE * (SIZE) + array3_size(COUNT, STRIDE, SIZE) , ...) | kzalloc( - (COUNT) * (STRIDE) * SIZE + array3_size(COUNT, STRIDE, SIZE) , ...) | kzalloc( - COUNT * (STRIDE) * (SIZE) + array3_size(COUNT, STRIDE, SIZE) , ...) | kzalloc( - (COUNT) * STRIDE * (SIZE) + array3_size(COUNT, STRIDE, SIZE) , ...) | kzalloc( - (COUNT) * (STRIDE) * (SIZE) + array3_size(COUNT, STRIDE, SIZE) , ...) | kzalloc( - COUNT * STRIDE * SIZE + array3_size(COUNT, STRIDE, SIZE) , ...) ) // Any remaining multi-factor products, first at least 3-factor products, // when they're not all constants... @@ expression E1, E2, E3; constant C1, C2, C3; @@ ( kzalloc(C1 * C2 * C3, ...) | kzalloc( - (E1) * E2 * E3 + array3_size(E1, E2, E3) , ...) | kzalloc( - (E1) * (E2) * E3 + array3_size(E1, E2, E3) , ...) | kzalloc( - (E1) * (E2) * (E3) + array3_size(E1, E2, E3) , ...) | kzalloc( - E1 * E2 * E3 + array3_size(E1, E2, E3) , ...) ) // And then all remaining 2 factors products when they're not all constants, // keeping sizeof() as the second factor argument. @@ expression THING, E1, E2; type TYPE; constant C1, C2, C3; @@ ( kzalloc(sizeof(THING) * C2, ...) | kzalloc(sizeof(TYPE) * C2, ...) | kzalloc(C1 * C2 * C3, ...) | kzalloc(C1 * C2, ...) | - kzalloc + kcalloc ( - sizeof(TYPE) * (E2) + E2, sizeof(TYPE) , ...) | - kzalloc + kcalloc ( - sizeof(TYPE) * E2 + E2, sizeof(TYPE) , ...) | - kzalloc + kcalloc ( - sizeof(THING) * (E2) + E2, sizeof(THING) , ...) | - kzalloc + kcalloc ( - sizeof(THING) * E2 + E2, sizeof(THING) , ...) | - kzalloc + kcalloc ( - (E1) * E2 + E1, E2 , ...) | - kzalloc + kcalloc ( - (E1) * (E2) + E1, E2 , ...) | - kzalloc + kcalloc ( - E1 * E2 + E1, E2 , ...) ) Signed-off-by: Kees Cook <keescook@chromium.org>
Diffstat (limited to 'drivers/net/ethernet/mellanox')
-rw-r--r--drivers/net/ethernet/mellanox/mlx4/alloc.c4
-rw-r--r--drivers/net/ethernet/mellanox/mlx4/cmd.c15
-rw-r--r--drivers/net/ethernet/mellanox/mlx4/en_netdev.c20
-rw-r--r--drivers/net/ethernet/mellanox/mlx4/main.c5
-rw-r--r--drivers/net/ethernet/mellanox/mlx4/resource_tracker.c16
-rw-r--r--drivers/net/ethernet/mellanox/mlx5/core/fpga/ipsec.c2
-rw-r--r--drivers/net/ethernet/mellanox/mlx5/core/lib/clock.c5
-rw-r--r--drivers/net/ethernet/mellanox/mlxsw/spectrum_qdisc.c3
8 files changed, 40 insertions, 30 deletions
diff --git a/drivers/net/ethernet/mellanox/mlx4/alloc.c b/drivers/net/ethernet/mellanox/mlx4/alloc.c
index 6dabd983e7e0..4bdf25059542 100644
--- a/drivers/net/ethernet/mellanox/mlx4/alloc.c
+++ b/drivers/net/ethernet/mellanox/mlx4/alloc.c
@@ -185,8 +185,8 @@ int mlx4_bitmap_init(struct mlx4_bitmap *bitmap, u32 num, u32 mask,
bitmap->avail = num - reserved_top - reserved_bot;
bitmap->effective_len = bitmap->avail;
spin_lock_init(&bitmap->lock);
- bitmap->table = kzalloc(BITS_TO_LONGS(bitmap->max) *
- sizeof(long), GFP_KERNEL);
+ bitmap->table = kcalloc(BITS_TO_LONGS(bitmap->max), sizeof(long),
+ GFP_KERNEL);
if (!bitmap->table)
return -ENOMEM;
diff --git a/drivers/net/ethernet/mellanox/mlx4/cmd.c b/drivers/net/ethernet/mellanox/mlx4/cmd.c
index 03375c705df7..e65bc3c95630 100644
--- a/drivers/net/ethernet/mellanox/mlx4/cmd.c
+++ b/drivers/net/ethernet/mellanox/mlx4/cmd.c
@@ -2377,20 +2377,23 @@ int mlx4_multi_func_init(struct mlx4_dev *dev)
struct mlx4_vf_admin_state *vf_admin;
priv->mfunc.master.slave_state =
- kzalloc(dev->num_slaves *
- sizeof(struct mlx4_slave_state), GFP_KERNEL);
+ kcalloc(dev->num_slaves,
+ sizeof(struct mlx4_slave_state),
+ GFP_KERNEL);
if (!priv->mfunc.master.slave_state)
goto err_comm;
priv->mfunc.master.vf_admin =
- kzalloc(dev->num_slaves *
- sizeof(struct mlx4_vf_admin_state), GFP_KERNEL);
+ kcalloc(dev->num_slaves,
+ sizeof(struct mlx4_vf_admin_state),
+ GFP_KERNEL);
if (!priv->mfunc.master.vf_admin)
goto err_comm_admin;
priv->mfunc.master.vf_oper =
- kzalloc(dev->num_slaves *
- sizeof(struct mlx4_vf_oper_state), GFP_KERNEL);
+ kcalloc(dev->num_slaves,
+ sizeof(struct mlx4_vf_oper_state),
+ GFP_KERNEL);
if (!priv->mfunc.master.vf_oper)
goto err_comm_oper;
diff --git a/drivers/net/ethernet/mellanox/mlx4/en_netdev.c b/drivers/net/ethernet/mellanox/mlx4/en_netdev.c
index 9670b33fc9b1..65eb06e017e4 100644
--- a/drivers/net/ethernet/mellanox/mlx4/en_netdev.c
+++ b/drivers/net/ethernet/mellanox/mlx4/en_netdev.c
@@ -2229,13 +2229,15 @@ static int mlx4_en_copy_priv(struct mlx4_en_priv *dst,
if (!dst->tx_ring_num[t])
continue;
- dst->tx_ring[t] = kzalloc(sizeof(struct mlx4_en_tx_ring *) *
- MAX_TX_RINGS, GFP_KERNEL);
+ dst->tx_ring[t] = kcalloc(MAX_TX_RINGS,
+ sizeof(struct mlx4_en_tx_ring *),
+ GFP_KERNEL);
if (!dst->tx_ring[t])
goto err_free_tx;
- dst->tx_cq[t] = kzalloc(sizeof(struct mlx4_en_cq *) *
- MAX_TX_RINGS, GFP_KERNEL);
+ dst->tx_cq[t] = kcalloc(MAX_TX_RINGS,
+ sizeof(struct mlx4_en_cq *),
+ GFP_KERNEL);
if (!dst->tx_cq[t]) {
kfree(dst->tx_ring[t]);
goto err_free_tx;
@@ -3320,14 +3322,16 @@ int mlx4_en_init_netdev(struct mlx4_en_dev *mdev, int port,
if (!priv->tx_ring_num[t])
continue;
- priv->tx_ring[t] = kzalloc(sizeof(struct mlx4_en_tx_ring *) *
- MAX_TX_RINGS, GFP_KERNEL);
+ priv->tx_ring[t] = kcalloc(MAX_TX_RINGS,
+ sizeof(struct mlx4_en_tx_ring *),
+ GFP_KERNEL);
if (!priv->tx_ring[t]) {
err = -ENOMEM;
goto out;
}
- priv->tx_cq[t] = kzalloc(sizeof(struct mlx4_en_cq *) *
- MAX_TX_RINGS, GFP_KERNEL);
+ priv->tx_cq[t] = kcalloc(MAX_TX_RINGS,
+ sizeof(struct mlx4_en_cq *),
+ GFP_KERNEL);
if (!priv->tx_cq[t]) {
err = -ENOMEM;
goto out;
diff --git a/drivers/net/ethernet/mellanox/mlx4/main.c b/drivers/net/ethernet/mellanox/mlx4/main.c
index 0a30d81aab3b..872014702fc1 100644
--- a/drivers/net/ethernet/mellanox/mlx4/main.c
+++ b/drivers/net/ethernet/mellanox/mlx4/main.c
@@ -2982,7 +2982,8 @@ static int mlx4_init_steering(struct mlx4_dev *dev)
int num_entries = dev->caps.num_ports;
int i, j;
- priv->steer = kzalloc(sizeof(struct mlx4_steer) * num_entries, GFP_KERNEL);
+ priv->steer = kcalloc(num_entries, sizeof(struct mlx4_steer),
+ GFP_KERNEL);
if (!priv->steer)
return -ENOMEM;
@@ -3103,7 +3104,7 @@ static u64 mlx4_enable_sriov(struct mlx4_dev *dev, struct pci_dev *pdev,
}
}
- dev->dev_vfs = kzalloc(total_vfs * sizeof(*dev->dev_vfs), GFP_KERNEL);
+ dev->dev_vfs = kcalloc(total_vfs, sizeof(*dev->dev_vfs), GFP_KERNEL);
if (NULL == dev->dev_vfs) {
mlx4_err(dev, "Failed to allocate memory for VFs\n");
goto disable_sriov;
diff --git a/drivers/net/ethernet/mellanox/mlx4/resource_tracker.c b/drivers/net/ethernet/mellanox/mlx4/resource_tracker.c
index b0e11255a355..7b1b5ac986d0 100644
--- a/drivers/net/ethernet/mellanox/mlx4/resource_tracker.c
+++ b/drivers/net/ethernet/mellanox/mlx4/resource_tracker.c
@@ -487,7 +487,7 @@ int mlx4_init_resource_tracker(struct mlx4_dev *dev)
int max_vfs_guarantee_counter = get_max_gauranteed_vfs_counter(dev);
priv->mfunc.master.res_tracker.slave_list =
- kzalloc(dev->num_slaves * sizeof(struct slave_list),
+ kcalloc(dev->num_slaves, sizeof(struct slave_list),
GFP_KERNEL);
if (!priv->mfunc.master.res_tracker.slave_list)
return -ENOMEM;
@@ -514,14 +514,14 @@ int mlx4_init_resource_tracker(struct mlx4_dev *dev)
sizeof(int),
GFP_KERNEL);
if (i == RES_MAC || i == RES_VLAN)
- res_alloc->allocated = kzalloc(MLX4_MAX_PORTS *
- (dev->persist->num_vfs
- + 1) *
- sizeof(int), GFP_KERNEL);
+ res_alloc->allocated =
+ kcalloc(MLX4_MAX_PORTS *
+ (dev->persist->num_vfs + 1),
+ sizeof(int), GFP_KERNEL);
else
- res_alloc->allocated = kzalloc((dev->persist->
- num_vfs + 1) *
- sizeof(int), GFP_KERNEL);
+ res_alloc->allocated =
+ kcalloc(dev->persist->num_vfs + 1,
+ sizeof(int), GFP_KERNEL);
/* Reduce the sink counter */
if (i == RES_COUNTER)
res_alloc->res_free = dev->caps.max_counters - 1;
diff --git a/drivers/net/ethernet/mellanox/mlx5/core/fpga/ipsec.c b/drivers/net/ethernet/mellanox/mlx5/core/fpga/ipsec.c
index a0433b48e833..5645a4facad2 100644
--- a/drivers/net/ethernet/mellanox/mlx5/core/fpga/ipsec.c
+++ b/drivers/net/ethernet/mellanox/mlx5/core/fpga/ipsec.c
@@ -381,7 +381,7 @@ int mlx5_fpga_ipsec_counters_read(struct mlx5_core_dev *mdev, u64 *counters,
count = mlx5_fpga_ipsec_counters_count(mdev);
- data = kzalloc(sizeof(*data) * count * 2, GFP_KERNEL);
+ data = kzalloc(array3_size(sizeof(*data), count, 2), GFP_KERNEL);
if (!data) {
ret = -ENOMEM;
goto out;
diff --git a/drivers/net/ethernet/mellanox/mlx5/core/lib/clock.c b/drivers/net/ethernet/mellanox/mlx5/core/lib/clock.c
index 857035583ccd..1e062e6b2587 100644
--- a/drivers/net/ethernet/mellanox/mlx5/core/lib/clock.c
+++ b/drivers/net/ethernet/mellanox/mlx5/core/lib/clock.c
@@ -394,8 +394,9 @@ static int mlx5_init_pin_config(struct mlx5_clock *clock)
int i;
clock->ptp_info.pin_config =
- kzalloc(sizeof(*clock->ptp_info.pin_config) *
- clock->ptp_info.n_pins, GFP_KERNEL);
+ kcalloc(clock->ptp_info.n_pins,
+ sizeof(*clock->ptp_info.pin_config),
+ GFP_KERNEL);
if (!clock->ptp_info.pin_config)
return -ENOMEM;
clock->ptp_info.enable = mlx5_ptp_enable;
diff --git a/drivers/net/ethernet/mellanox/mlxsw/spectrum_qdisc.c b/drivers/net/ethernet/mellanox/mlxsw/spectrum_qdisc.c
index 91262b0573e3..cad603c35271 100644
--- a/drivers/net/ethernet/mellanox/mlxsw/spectrum_qdisc.c
+++ b/drivers/net/ethernet/mellanox/mlxsw/spectrum_qdisc.c
@@ -740,7 +740,8 @@ int mlxsw_sp_tc_qdisc_init(struct mlxsw_sp_port *mlxsw_sp_port)
mlxsw_sp_port->root_qdisc->prio_bitmap = 0xff;
mlxsw_sp_port->root_qdisc->tclass_num = MLXSW_SP_PORT_DEFAULT_TCLASS;
- mlxsw_sp_qdisc = kzalloc(sizeof(*mlxsw_sp_qdisc) * IEEE_8021QAZ_MAX_TCS,
+ mlxsw_sp_qdisc = kcalloc(IEEE_8021QAZ_MAX_TCS,
+ sizeof(*mlxsw_sp_qdisc),
GFP_KERNEL);
if (!mlxsw_sp_qdisc)
goto err_tclass_qdiscs_init;