treewide: Replace kmalloc with kmalloc_obj for non-scalar types

This is the result of running the Coccinelle script from
scripts/coccinelle/api/kmalloc_objs.cocci. The script is designed to
avoid scalar types (which need careful case-by-case checking), and
instead replace kmalloc-family calls that allocate struct or union
object instances:

Single allocations:	kmalloc(sizeof(TYPE), ...)
are replaced with:	kmalloc_obj(TYPE, ...)

Array allocations:	kmalloc_array(COUNT, sizeof(TYPE), ...)
are replaced with:	kmalloc_objs(TYPE, COUNT, ...)

Flex array allocations:	kmalloc(struct_size(PTR, FAM, COUNT), ...)
are replaced with:	kmalloc_flex(*PTR, FAM, COUNT, ...)

(where TYPE may also be *VAR)

The resulting allocations no longer return "void *", instead returning
"TYPE *".

Signed-off-by: Kees Cook <kees@kernel.org>

3 files changed, 9 insertions, 11 deletions

diff --git a/drivers/net/hyperv/netvsc.c b/drivers/net/hyperv/netvsc.c
index 60a4629fe6ba..d9fa2fc4c43c 100644
--- a/drivers/net/hyperv/netvsc.c
+++ b/drivers/net/hyperv/netvsc.c
@@ -129,7 +129,7 @@ static struct netvsc_device *alloc_net_device(void)
 {
 	struct netvsc_device *net_device;
 
-	net_device = kzalloc(sizeof(struct netvsc_device), GFP_KERNEL);
+	net_device = kzalloc_obj(struct netvsc_device, GFP_KERNEL);
 	if (!net_device)
 		return NULL;
 
@@ -1025,9 +1025,8 @@ static int netvsc_dma_map(struct hv_device *hv_dev,
 	if (!hv_is_isolation_supported())
 		return 0;
 
-	packet->dma_range = kcalloc(page_count,
-				    sizeof(*packet->dma_range),
-				    GFP_ATOMIC);
+	packet->dma_range = kzalloc_objs(*packet->dma_range, page_count,
+					 GFP_ATOMIC);
 	if (!packet->dma_range)
 		return -ENOMEM;
 
diff --git a/drivers/net/hyperv/netvsc_drv.c b/drivers/net/hyperv/netvsc_drv.c
index cbd52cb79268..1a3f2a35519f 100644
--- a/drivers/net/hyperv/netvsc_drv.c
+++ b/drivers/net/hyperv/netvsc_drv.c
@@ -712,7 +712,7 @@ void netvsc_linkstatus_callback(struct net_device *net,
 	if (net->reg_state != NETREG_REGISTERED)
 		return;
 
-	event = kzalloc(sizeof(*event), GFP_ATOMIC);
+	event = kzalloc_obj(*event, GFP_ATOMIC);
 	if (!event)
 		return;
 	event->event = indicate->status;
@@ -931,7 +931,7 @@ struct netvsc_device_info *netvsc_devinfo_get(struct netvsc_device *nvdev)
 	struct netvsc_device_info *dev_info;
 	struct bpf_prog *prog;
 
-	dev_info = kzalloc(sizeof(*dev_info), GFP_ATOMIC);
+	dev_info = kzalloc_obj(*dev_info, GFP_ATOMIC);
 
 	if (!dev_info)
 		return NULL;
@@ -1524,9 +1524,8 @@ static void netvsc_get_ethtool_stats(struct net_device *dev,
 		data[i++] = xdp_tx;
 	}
 
-	pcpu_sum = kvmalloc_array(nr_cpu_ids,
-				  sizeof(struct netvsc_ethtool_pcpu_stats),
-				  GFP_KERNEL);
+	pcpu_sum = kvmalloc_objs(struct netvsc_ethtool_pcpu_stats, nr_cpu_ids,
+				 GFP_KERNEL);
 	if (!pcpu_sum)
 		return;
 
diff --git a/drivers/net/hyperv/rndis_filter.c b/drivers/net/hyperv/rndis_filter.c
index c35f9685b6bf..2fa77dc21d7e 100644
--- a/drivers/net/hyperv/rndis_filter.c
+++ b/drivers/net/hyperv/rndis_filter.c
@@ -64,7 +64,7 @@ static struct rndis_device *get_rndis_device(void)
 {
 	struct rndis_device *device;
 
-	device = kzalloc(sizeof(struct rndis_device), GFP_KERNEL);
+	device = kzalloc_obj(struct rndis_device, GFP_KERNEL);
 	if (!device)
 		return NULL;
 
@@ -87,7 +87,7 @@ static struct rndis_request *get_rndis_request(struct rndis_device *dev,
 	struct rndis_set_request *set;
 	unsigned long flags;
 
-	request = kzalloc(sizeof(struct rndis_request), GFP_KERNEL);
+	request = kzalloc_obj(struct rndis_request, GFP_KERNEL);
 	if (!request)
 		return NULL;